{"title":"Flow Measurement","description":"\u003ch2\u003eFlow Meters and Flow Switches\u003c\/h2\u003e\n\u003cp\u003eFor flow, the medium determines the method: viscosity, conductivity, solids content and the required accuracy each rule out certain principles. That is why the range is organised by measuring principle.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"\/en\/collections\/flow-monitors-qs\"\u003eFlow switches\u003c\/a\u003e\u003c\/strong\u003e signal whether a minimum flow is reached: calorimetric with no moving parts, with a piston or with a paddle\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"\/en\/collections\/flow-electromagnetic-qm\"\u003eElectromagnetic\u003c\/a\u003e\u003c\/strong\u003e for electrically conductive liquids, with no moving parts in the measuring tube\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"\/en\/collections\/flow-turbine-piston-qt\"\u003eTurbine and piston\u003c\/a\u003e\u003c\/strong\u003e for clean liquids with high repeatability\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"\/en\/collections\/flow-gear-qz\"\u003eGear and oval gear meters\u003c\/a\u003e\u003c\/strong\u003e for small flows and viscous media such as oils, resins and adhesives\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"\/en\/collections\/flow-paddle-wheel-qf\"\u003ePaddle wheel\u003c\/a\u003e\u003c\/strong\u003e as an in-line device, an insertion sensor or with a display head\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"\/en\/collections\/flow-vortex-qw\"\u003eVortex\u003c\/a\u003e\u003c\/strong\u003e for steam, gas and liquid\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"\/en\/collections\/flow-coriolis-qc\"\u003eCoriolis\u003c\/a\u003e\u003c\/strong\u003e measures mass flow directly\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"\/en\/collections\/flow-variable-area-qh\"\u003eVariable area\u003c\/a\u003e\u003c\/strong\u003e with a metal or glass measuring tube\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"\/en\/collections\/flow-differential-pressure-qb\"\u003eDifferential pressure\u003c\/a\u003e\u003c\/strong\u003e with an orifice plate or as a differential pressure flow meter\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"\/en\/collections\/flow-target-qk\"\u003eTarget flow meters\u003c\/a\u003e\u003c\/strong\u003e with capacitive sensing\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"\/en\/collections\/flow-temperature-combi-qe\"\u003eCombination sensors\u003c\/a\u003e\u003c\/strong\u003e measure flow and temperature in one device\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"\/en\/collections\/flow-gas-qg\"\u003eFor gas\u003c\/a\u003e\u003c\/strong\u003e: thermal mass flow meters, gas turbine meters, rotary piston and precession vortex gas meters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSelection and quote\u003c\/h3\u003e\n\u003cp\u003eThe selection depends on the medium, nominal size, temperature, pressure and installation position. Add the suitable devices to the cart and request a quote there, or describe your application using the \u003ca href=\"\/en\/pages\/angebot-anfordern\"\u003equote form\u003c\/a\u003e. An overview of the principles and the details we need for a quote is on \u003ca href=\"\/en\/pages\/flow-measurement\"\u003eFlow measurement: principles and selection\u003c\/a\u003e. For display and further processing, see \u003ca href=\"\/en\/collections\/measurement-electronics\"\u003eMeasurement Electronics\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"qtka-turbinen-durchflussmesser-mit-lcd-anzeige","title":"QTKA turbine flowmeter with LCD display","description":"\u003cp\u003eThe \u003cstrong\u003eQTKA\u003c\/strong\u003e is an electronic turbine flowmeter for liquids in nominal sizes from DN 6 to DN 300. It is particularly suited to oil or water where switch points, an analog value, pulses and a digital interface are to come from one device.\u003c\/p\u003e\u003cp\u003eTurbine principle, measuring range \u003cstrong\u003eDN 6 … DN 300\u003c\/strong\u003e with flow rates of \u003cstrong\u003e0.04 … 1800 m³\/h\u003c\/strong\u003e by size, accuracy \u003cstrong\u003e≤ ±1.0 % of the measuring range\u003c\/strong\u003e, switching accuracy and analog output accuracy each \u003cstrong\u003e≤ ±0.5 %\u003c\/strong\u003e of the range. Outputs: switch, analog, pulse and frequency plus \u003cstrong\u003eIO-Link\u003c\/strong\u003e and \u003cstrong\u003eRS485\u003c\/strong\u003e, switching load \u0026lt; 200 mA. Supply \u003cstrong\u003e12 … 30 V DC\u003c\/strong\u003e, response time 10 ms … 5 s (factory default 1 s), connection \u003cstrong\u003eM12 × 1\u003c\/strong\u003e, 5-pin. The liquid crystal display shows four values.\u003c\/p\u003e\u003cp\u003eShell of stainless steel 304, display head of stainless steel or engineering plastic, turbine rotor of 3cr13 or 2205. Nominal pressure PN 6.3 · 16 · 25 · 40 MPa up to DN32, 2.5 MPa up to DN100, 1.6 MPa up to DN300; max. pressure loss 0.05 MPa at DN10 down to 0.025 MPa up to DN300. Medium temperature -30 … +100 °C, +130 °C type H, +180 °C type H1; ambient -10 … +70 °C; viscosity \u0026gt; 5 × 10⁻⁶ m²\/s; protection \u003cstrong\u003eIP67\u003c\/strong\u003e. A declaration of conformity is not documented in the datasheet. Before sizing, note: the maximum flow of 222 m³\/h at DN100 breaks the series of its neighbours 100 and 250 and has to be settled with the enquiry.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eTurbine principle for DN 6 … DN 300\u003c\/li\u003e\u003cli\u003eAccuracy ≤ ±1.0 % of the measuring range\u003c\/li\u003e\u003cli\u003eSwitch, analog, pulse and frequency output\u003c\/li\u003e\u003cli\u003eIO-Link and RS485\u003c\/li\u003e\u003cli\u003eLiquid crystal display with four values\u003c\/li\u003e\u003cli\u003eResponse time 10 ms … 5 s, factory default 1 s\u003c\/li\u003e\u003cli\u003eMedium temperature up to +180 °C in version H1\u003c\/li\u003e\u003cli\u003eProtection IP67\u003c\/li\u003e\u003cli\u003eReverse polarity, overload and short-circuit protection\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57266204737862,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QTKA_produkt.webp?v=1790331902"},{"product_id":"qska-kalorimetrischer-stromungswachter","title":"QSKA calorimetric flow switch","description":"\u003cp\u003eThe \u003cstrong\u003eQSKA\u003c\/strong\u003e is a calorimetric flow switch for water, oil and air with no moving parts in the medium. It is particularly suited to water, cutting fluid, lubricating oil and air, and to pump dry-running protection.\u003c\/p\u003e\u003cp\u003eA heated and an unheated resistor in the probe sense the flow velocity. Setting range: \u003cstrong\u003e1 … 150 cm\/s water\u003c\/strong\u003e, \u003cstrong\u003e3 … 300 cm\/s oil\u003c\/strong\u003e, \u003cstrong\u003e20 … 2000 cm\/s air\u003c\/strong\u003e, by potentiometer. Accuracy and repeatability of the switching point are not documented. Output \u003cstrong\u003ePNP, NPN or relay (SPDT)\u003c\/strong\u003e, switching current ≤ 400 mA (PNP\/NPN) or ≤ 4 A (relay). Supply \u003cstrong\u003e24 V DC ± 20 %\u003c\/strong\u003e or \u003cstrong\u003e230 V AC ± 15 %\u003c\/strong\u003e, response time 1 … 13 s, typically 2 s. Connection via \u003cstrong\u003eM12 × 1\u003c\/strong\u003e plug or 2 m of cable.\u003c\/p\u003e\u003cp\u003eProbe in stainless steel, housing in PBT. Process connection G1\/2, G1\/4, R1\/2 or R1\/4 male or M18 × 1.5 female, probe length 30 mm (DN32 and below) or 50 mm (DN40 and above). Pressure rating \u003cstrong\u003e100 bar\u003c\/strong\u003e, medium temperature \u003cstrong\u003e-20 … +80 °C\u003c\/strong\u003e, protection \u003cstrong\u003eIP67\u003c\/strong\u003e. A declaration of conformity is not documented in the datasheet. Before sizing, note: The setting range is a flow velocity; the flow rate depends on the pipe bore. The pressure of the installed assembly is set by the accessory; the conventional stainless tee is rated 40 bar. For the relay (4 A) neither a voltage nor an AC\/DC rating is documented.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eCalorimetric principle with no moving parts\u003c\/li\u003e\u003cli\u003eSettable for water, oil and air\u003c\/li\u003e\u003cli\u003eOutput PNP, NPN or SPDT relay\u003c\/li\u003e\u003cli\u003eSupply 24 V DC or 230 V AC\u003c\/li\u003e\u003cli\u003ePressure rating 100 bar at the switch\u003c\/li\u003e\u003cli\u003eProtection IP67\u003c\/li\u003e\u003cli\u003eLED row with six LEDs for switching state and velocity trend\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453412843846,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKA_produkt.webp?v=1790331873"},{"product_id":"qskc-kalorimetrischer-stromungswachter-edelstahl","title":"QSKC calorimetric flow switch, stainless steel","description":"\u003cp\u003eThe \u003cstrong\u003eQSKC\u003c\/strong\u003e is a calorimetric flow switch with probe and housing in stainless steel and no moving parts in the medium. It is particularly suited to water, cutting fluid, lubricating oil and air, to pump dry-running protection and to low-flow alarms.\u003c\/p\u003e\u003cp\u003eA heated and an unheated resistor in the probe sense the flow velocity. Setting range: \u003cstrong\u003e1 … 150 cm\/s water\u003c\/strong\u003e, \u003cstrong\u003e3 … 300 cm\/s oil\u003c\/strong\u003e, \u003cstrong\u003e20 … 2000 cm\/s air\u003c\/strong\u003e, by potentiometer. Accuracy and repeatability of the switching point are not documented. Output \u003cstrong\u003ePNP, NPN or relay (SPDT)\u003c\/strong\u003e, switching current ≤ 400 mA or ≤ 4 A (relay). Supply \u003cstrong\u003e24 V DC ± 20 %\u003c\/strong\u003e, no-load current ≤ 80 mA, response time 1 … 13 s, typically 2 s. Connection via side-mounted \u003cstrong\u003eM12 × 1\u003c\/strong\u003e plug or 2 m of cable.\u003c\/p\u003e\u003cp\u003eProbe and housing in stainless steel, weight 0.4 kg. Process connection G1\/2, G1\/4, R1\/2 or R1\/4 male or M18 × 1.5 female. Pressure rating \u003cstrong\u003e100 bar\u003c\/strong\u003e, medium temperature \u003cstrong\u003e-20 … +80 °C\u003c\/strong\u003e, protection \u003cstrong\u003eIP67\u003c\/strong\u003e. A declaration of conformity is not documented in the datasheet. Before sizing, note: The setting range is a flow velocity; the flow rate depends on the pipe bore. Data block and order code disagree on the supply; only 24 V DC can be ordered, and a 230 V AC version has to be confirmed first. The pressure of the installed assembly is set by the accessory; the conventional stainless tee is rated 40 bar.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eHousing and probe entirely in stainless steel\u003c\/li\u003e\u003cli\u003eCalorimetric principle with no moving parts\u003c\/li\u003e\u003cli\u003eSettable for water, oil and air\u003c\/li\u003e\u003cli\u003eOutput PNP, NPN or SPDT relay\u003c\/li\u003e\u003cli\u003ePressure rating 100 bar at the switch\u003c\/li\u003e\u003cli\u003eProtection IP67\u003c\/li\u003e\u003cli\u003eLED row with six LEDs for switching state and velocity trend\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453412909382,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKC_produkt.webp?v=1790331873"},{"product_id":"qskd-kalorimetrischer-stromungswachter-magnetstift-einstellung","title":"QSKD calorimetric flow switch, magnetic pen setting","description":"\u003cp\u003eThe \u003cstrong\u003eQSKD\u003c\/strong\u003e is a settable calorimetric flow switch with housing and probe in stainless steel. It is particularly suited to water, oil, gas and other media compatible with stainless steel in hydraulics, lubrication, pumps, cooling, ventilation, water treatment and leak detection.\u003c\/p\u003e\u003cp\u003eMeasuring principle thermal diffusion with a reference sensor and a heated sensor in one probe. Setting range as flow velocity: \u003cstrong\u003e1 … 150 cm\/s water\u003c\/strong\u003e, \u003cstrong\u003e3 … 300 cm\/s oil\u003c\/strong\u003e, \u003cstrong\u003e20 … 2000 cm\/s air\u003c\/strong\u003e; the scale is calibrated in water. Repeatability \u003cstrong\u003e1 % below 0.6 m\/s\u003c\/strong\u003e, 3 % below 1.5 m\/s, 10 % above 1.5 m\/s; an accuracy is not documented. Output \u003cstrong\u003ePNP, NPN or relay\u003c\/strong\u003e, normally open or normally closed set in the field, switching load 500 mA at 24 V DC or 60 W (relay). Supply \u003cstrong\u003e12 … 30 V DC\u003c\/strong\u003e, response time 2 s typical. Setting by inductive keys with a magnetic pen, connection \u003cstrong\u003eM12 × 1\u003c\/strong\u003e, four pins.\u003c\/p\u003e\u003cp\u003eHousing 304 stainless steel, probe 316L stainless steel, housing turnable through 330°. Process connection G1\/2, G1\/4, R1\/2 or R1\/4 male, M18 × 1.5 female or clamp 25.5 mm or 50.5 mm to ISO 2852:1993. Pressure rating \u003cstrong\u003e100 bar\u003c\/strong\u003e, medium temperature \u003cstrong\u003e-20 … +85 °C\u003c\/strong\u003e, protection \u003cstrong\u003eIP67\u003c\/strong\u003e. A declaration of conformity is not documented in the datasheet. Before sizing, note: The setting range is a flow velocity in water; for other media the value has to be specified separately. The 300 bar option named in the data block has no order field. For the relay (60 W) neither a voltage nor an AC\/DC rating is documented.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eRepeatability documented, 1 % below 0.6 m\/s\u003c\/li\u003e\u003cli\u003eHousing 304 stainless, probe 316L stainless\u003c\/li\u003e\u003cli\u003eSetting by keys and magnetic pen\u003c\/li\u003e\u003cli\u003eNormally open or normally closed set in the field\u003c\/li\u003e\u003cli\u003eOutput PNP, NPN or relay\u003c\/li\u003e\u003cli\u003eClamp connection to ISO 2852:1993 available\u003c\/li\u003e\u003cli\u003ePressure rating 100 bar, protection IP67\u003c\/li\u003e\u003cli\u003eHousing turnable through 330°\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453412942150,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKD_produkt.webp?v=1790331873"},{"product_id":"qske-thermischer-stromungswachter-mit-digitalanzeige","title":"QSKE thermal flow switch with digital display","description":"\u003cp\u003eThe \u003cstrong\u003eQSKE\u003c\/strong\u003e is a thermal flow switch with a three-digit LED display and keys on the device. According to the datasheet it is intended for water, oil and air.\u003c\/p\u003e\u003cp\u003eThermal measuring principle; the signal is conditioned and put out as a switching signal. A measuring range is not documented in the datasheet, nor are accuracy, repeatability or hysteresis. One switch output on pin 4, \u003cstrong\u003ePNP or NPN\u003c\/strong\u003e, normally open or normally closed, all settable at the keys, PNP as factory setting. Switching load \u0026lt; 200 mA. Supply \u003cstrong\u003e12 … 30 V DC\u003c\/strong\u003e, no-load current ≤ 30 mA, response time 1 … 13 s. Display \u003cstrong\u003ethree digits, red LED\u003c\/strong\u003e, reading in per cent, setting by two keys − and +. Connection \u003cstrong\u003eM12 × 1\u003c\/strong\u003e, four pins.\u003c\/p\u003e\u003cp\u003eProbe and process connection in 304 stainless steel, housing in engineering plastic moulded in one piece, turnable through 330°. Process connection G1\/2, G1\/4, R1\/2 or R1\/4 male, M18 × 1.5 female or clamp 25.4 mm or 50.5 mm to ISO 2852:1993, probe lengths 30, 50, 60, 70, 80 and 100 mm. Medium temperature \u003cstrong\u003e-20 … +85 °C\u003c\/strong\u003e, ambient -20 … +80 °C, protection \u003cstrong\u003eIP67\u003c\/strong\u003e. IP67 and a CE mark are printed on the device shown; a declaration of conformity is not documented in the datasheet. Before sizing, note: No measuring range is documented, and without it the device cannot be sized. No pressure rating is given. The datasheet does not say what the percentage display refers to.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eThree-digit red LED display on the device\u003c\/li\u003e\u003cli\u003eSwitching point settable by two keys\u003c\/li\u003e\u003cli\u003ePNP or NPN, normally open or normally closed settable\u003c\/li\u003e\u003cli\u003eSupply 12 … 30 V DC\u003c\/li\u003e\u003cli\u003eProbe and process connection 304 stainless steel\u003c\/li\u003e\u003cli\u003eClamp connection to ISO 2852:1993 available\u003c\/li\u003e\u003cli\u003eHousing turnable through 330°\u003c\/li\u003e\u003cli\u003eProtection IP67\u003c\/li\u003e\u003cli\u003eProtection against reverse polarity, overload and short circuit\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453578584390,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKE_produkt.webp?v=1790331873"},{"product_id":"qskf-kalorimetrischer-stromungswachter-aluminiumgussgehause","title":"QSKF calorimetric flow switch, cast aluminium housing","description":"\u003cp\u003eThe \u003cstrong\u003eQSKF\u003c\/strong\u003e is a calorimetric flow switch in a painted cast aluminium housing, described as an explosion-proof version. It is particularly suited to water, cutting fluid, lubricating oil and air in pneumatic and hydraulic systems, and to pump dry-running protection.\u003c\/p\u003e\u003cp\u003eA heated and an unheated resistor in the probe sense the flow velocity. Setting range: \u003cstrong\u003e1 … 150 cm\/s water\u003c\/strong\u003e, \u003cstrong\u003e3 … 300 cm\/s oil\u003c\/strong\u003e, \u003cstrong\u003e20 … 2000 cm\/s air\u003c\/strong\u003e, by a potentiometer with the cover unscrewed. Accuracy and repeatability are not documented. Output \u003cstrong\u003ePNP, NPN or relay (SPDT)\u003c\/strong\u003e, switching current ≤ 400 mA or ≤ 4 A (relay). Supply \u003cstrong\u003e24 V DC ± 20 %\u003c\/strong\u003e, no-load current ≤ 80 mA, response time 1 … 13 s, typically 2 s. Terminal strip in the housing, \u003cstrong\u003eM20 × 1.5\u003c\/strong\u003e cable entry.\u003c\/p\u003e\u003cp\u003eProbe in stainless steel, housing in cast aluminium, painted. Process connection G1\/2, G1\/4, Rc1\/2 or Rc1\/4 male or M18 × 1.5 female. Pressure rating \u003cstrong\u003e100 bar\u003c\/strong\u003e, medium temperature \u003cstrong\u003e-20 … +80 °C\u003c\/strong\u003e, protection \u003cstrong\u003eIP67\u003c\/strong\u003e. The datasheet states \u003cstrong\u003eEx d IIC T6\u003c\/strong\u003e; a certificate is not documented. A declaration of conformity is not documented in the datasheet. Before sizing, note: The explosion protection is optional in the order code, and a certificate and a separate ambient range for explosion-proof service are missing. Data block and order code disagree on the supply; only 24 V DC can be ordered. The setting range is a flow velocity; the flow rate depends on the pipe bore.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eCalorimetric principle with no moving parts\u003c\/li\u003e\u003cli\u003eHousing in painted cast aluminium\u003c\/li\u003e\u003cli\u003eOutput PNP, NPN or SPDT relay\u003c\/li\u003e\u003cli\u003eM20 × 1.5 cable entry with terminal strip\u003c\/li\u003e\u003cli\u003ePressure rating 100 bar at the switch\u003c\/li\u003e\u003cli\u003eProtection IP67\u003c\/li\u003e\u003cli\u003eEight LEDs behind a window\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453578617158,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKF_produkt.webp?v=1790331873"},{"product_id":"qskg-kolben-stromungswachter-edelstahl","title":"QSKG piston flow switch, stainless steel","description":"\u003cp\u003eThe \u003cstrong\u003eQSKG\u003c\/strong\u003e is a mechanical piston flow switch with a magnetic piston and the switching element outside the medium. It is particularly suited to liquids in hydraulics, lubrication and circulating systems.\u003c\/p\u003e\u003cp\u003eA magnetic piston on a precision spring is displaced by the flow, and the magnet operates a microswitch or reed contact outside the wetted part. Setting ranges by size \u003cstrong\u003e0.8 … 5\u003c\/strong\u003e, 2 … 12, 3 … 30, 5 … 40 and \u003cstrong\u003e6 … 60 L\/min\u003c\/strong\u003e. Repeatability \u003cstrong\u003e≤ ± 3 % of range\u003c\/strong\u003e; an accuracy is not documented. Output one \u003cstrong\u003echangeover contact\u003c\/strong\u003e, switching capacity \u003cstrong\u003e240 V AC \/ 110 V DC, 1.5 A\u003c\/strong\u003e. The datasheet names no supply voltage. Connection \u003cstrong\u003eM12 × 1\u003c\/strong\u003e. An optional pointer head shows the instantaneous flow in L\/min between the marks min and max.\u003c\/p\u003e\u003cp\u003eSwitch housing and spring in stainless steel, electronic enclosure in PC, weight 1.2 … 1.4 kg by size. Process connection G1\/4, G3\/8, G1\/2, G3\/4 or G1 female. Pressure rating \u003cstrong\u003e200 bar\u003c\/strong\u003e (stainless steel), ambient temperature \u003cstrong\u003e-20 … +70 °C\u003c\/strong\u003e, protection \u003cstrong\u003eIP65\u003c\/strong\u003e. A declaration of conformity is not documented in the datasheet. Before sizing, note: A medium temperature is not documented. The 3 … 30 L\/min range has no field in the order code. The pointer head has no order field.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMechanical principle, no electronics in the medium\u003c\/li\u003e\u003cli\u003eMechanical and electrical parts completely separated\u003c\/li\u003e\u003cli\u003eFive setting ranges from 0.8 to 60 L\/min\u003c\/li\u003e\u003cli\u003eRepeatability ≤ ± 3 % of range\u003c\/li\u003e\u003cli\u003eChangeover contact up to 240 V AC \/ 110 V DC, 1.5 A\u003c\/li\u003e\u003cli\u003ePressure rating 200 bar with stainless body\u003c\/li\u003e\u003cli\u003eFemale thread G1\/4 to G1\u003c\/li\u003e\u003cli\u003eProtection IP65, M12 × 1 connection\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453604864326,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKG_produkt.webp?v=1790331873"},{"product_id":"qskh-kolben-stromungswachter-messing-vernickelt","title":"QSKH piston flow switch, nickel-plated brass","description":"\u003cp\u003eThe \u003cstrong\u003eQSKH\u003c\/strong\u003e is a mechanical in-line piston flow switch with body and piston in nickel-plated brass. It is particularly suited to liquids in industrial equipment, cooling and lubrication.\u003c\/p\u003e\u003cp\u003eA magnetic piston on a spring is displaced by the flow, and the magnet closes a reed contact outside the wetted part. Setting range in seven sizes from \u003cstrong\u003e2 … 9\u003c\/strong\u003e to \u003cstrong\u003e50 … 200 L\/min\u003c\/strong\u003e, switching point set on an engraved scale calibrated in water at 20 °C with horizontal mounting. Accuracy ± 5 of the total range, for which the datasheet gives no unit. Hysteresis depends on the switching point, at least 0.6 L\/min. Output \u003cstrong\u003ereed contact, one changeover\u003c\/strong\u003e, switching capacity \u003cstrong\u003e24 V DC \/ 1 A\u003c\/strong\u003e. The datasheet names no supply voltage. Connection M12 connector or rectangular plug.\u003c\/p\u003e\u003cp\u003eBody and piston in nickel-plated brass, spring stainless steel, seal NBR. Process connection female thread G or R from 1\/2 to 1½ inch by size. Pressure rating \u003cstrong\u003e100 bar\u003c\/strong\u003e, pressure loss ≤ 0.5 bar at 25 L\/min, medium temperature \u003cstrong\u003e≤ 90 °C\u003c\/strong\u003e, protection \u003cstrong\u003eIP67\u003c\/strong\u003e with M12 or \u003cstrong\u003eIP65\u003c\/strong\u003e with rectangular plug. A declaration of conformity is not documented in the datasheet. Before sizing, note: An ambient temperature is not documented. Mounting position, medium and temperature shift the switching value, and the datasheet does not say by how much. The accuracy figure ± 5 is given without a unit.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMechanical principle with reed contact outside the medium\u003c\/li\u003e\u003cli\u003eMechanical and electrical parts completely separated\u003c\/li\u003e\u003cli\u003eSeven sizes up to 200 L\/min\u003c\/li\u003e\u003cli\u003eEngraved setting scale, no flow rig needed\u003c\/li\u003e\u003cli\u003ePressure rating 100 bar\u003c\/li\u003e\u003cli\u003eMedium temperature up to 90 °C\u003c\/li\u003e\u003cli\u003eChangeover contact 24 V DC \/ 1 A\u003c\/li\u003e\u003cli\u003eProtection IP67 with M12 connector\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453604897094,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKH_produkt.webp?v=1790331873"},{"product_id":"qski-kolben-stromungswachter-drei-gehausewerkstoffe","title":"QSKI piston flow switch, three housing materials","description":"\u003cp\u003eThe \u003cstrong\u003eQSKI\u003c\/strong\u003e is a mechanical in-line piston flow switch with a housing in plastic, aluminium or stainless steel. It is particularly suited to liquids and gases in industrial automation, machinery, air compression, refrigeration and air conditioning.\u003c\/p\u003e\u003cp\u003eA magnetic piston on a spring is displaced by the flow, and the magnet closes a reed contact outside the wetted part. Setting range in six order fields from \u003cstrong\u003e0.3 … 7\u003c\/strong\u003e to \u003cstrong\u003e27 … 70 L\/min\u003c\/strong\u003e, setting scale on the body calibrated in water at 20 °C. Accuracy ± 5 of the total range, for which the datasheet gives no unit. Hysteresis at least 0.6 L\/min. Output \u003cstrong\u003edry reed contact\u003c\/strong\u003e, normally open, \u003cstrong\u003eone or two switch points\u003c\/strong\u003e, switching capacity 24 V DC \/ 250 V AC, 100 mA. Supply \u003cstrong\u003e24 V DC ± 20 %\u003c\/strong\u003e or \u003cstrong\u003e230 V AC ± 15 %\u003c\/strong\u003e by order code, status LED on DC only. Connection \u003cstrong\u003eM12\u003c\/strong\u003e, four pins.\u003c\/p\u003e\u003cp\u003eHousing in POM (\u003cstrong\u003e10 bar\u003c\/strong\u003e), anodised aluminium (\u003cstrong\u003e50 bar\u003c\/strong\u003e) or stainless steel (\u003cstrong\u003e100 bar\u003c\/strong\u003e), piston POM, spring stainless steel, seal NBR. Process connection female thread G1\/4 to G1. Pressure loss 0.3 bar at 25 L\/min, medium temperature \u003cstrong\u003e≤ 90 °C\u003c\/strong\u003e, protection \u003cstrong\u003eIP67\u003c\/strong\u003e. A declaration of conformity is not documented in the datasheet. Before sizing, note: The parameter table gives 50 bar for every model; the housing material decides, and the plastic version holds 10 bar. The 5 … 40 L\/min order field has no row in the parameter table. Not every thread is offered in every range, and the order code rejects no combination.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMechanical principle with reed contact outside the medium\u003c\/li\u003e\u003cli\u003eHousing in POM, aluminium or stainless steel\u003c\/li\u003e\u003cli\u003eUp to 100 bar with stainless housing\u003c\/li\u003e\u003cli\u003eOne or two switch points\u003c\/li\u003e\u003cli\u003eSupply 24 V DC or 230 V AC\u003c\/li\u003e\u003cli\u003eSetting scale on the body\u003c\/li\u003e\u003cli\u003eFor liquids and gases\u003c\/li\u003e\u003cli\u003eProtection IP67\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453615677766,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKI_produkt.webp?v=1790331900"},{"product_id":"qskj-kolben-stromungswachter-mit-l-min-skala","title":"QSKJ piston flow switch with L\/min scale","description":"\u003cp\u003eThe \u003cstrong\u003eQSKJ\u003c\/strong\u003e is a mechanical in-line piston flow switch with a scale in L\/min on the body. It is particularly suited to liquids and gases in industrial automation, machinery, air compression, refrigeration and air conditioning.\u003c\/p\u003e\u003cp\u003eA magnetic piston on a spring is displaced by the flow, and the magnet closes a reed contact outside the wetted part. Setting range in four order fields: \u003cstrong\u003e0.6 … 8\u003c\/strong\u003e, 1 … 15, 2 … 25 and \u003cstrong\u003e27 … 70 L\/min\u003c\/strong\u003e. Scale on the body \u003cstrong\u003e1 … 13 L\/min\u003c\/strong\u003e, marked H2O 20 °C. Accuracy \u003cstrong\u003e5 % of the total range\u003c\/strong\u003e, hysteresis at least 0.6 L\/min. Output \u003cstrong\u003edry reed contact\u003c\/strong\u003e, normally open, \u003cstrong\u003eone or two switch points\u003c\/strong\u003e, switching capacity 24 V DC \/ 250 V AC, 100 mA. Supply \u003cstrong\u003e24 V DC ± 20 %\u003c\/strong\u003e or \u003cstrong\u003e230 V AC ± 15 %\u003c\/strong\u003e by order code, status LED on DC only. Connection \u003cstrong\u003eM12\u003c\/strong\u003e, four pins.\u003c\/p\u003e\u003cp\u003eHousing in POM (\u003cstrong\u003e10 bar\u003c\/strong\u003e), anodised aluminium (\u003cstrong\u003e50 bar\u003c\/strong\u003e) or stainless steel (\u003cstrong\u003e100 bar\u003c\/strong\u003e), piston POM, spring stainless steel, seal NBR. Process connection female thread G1\/4 to G1. Pressure loss 0.3 bar at 25 L\/min, medium temperature \u003cstrong\u003e≤ 90 °C\u003c\/strong\u003e, protection \u003cstrong\u003eIP67\u003c\/strong\u003e. A declaration of conformity is not documented in the datasheet. Before sizing, note: The parameter table gives 40 L\/min as maximum flow for every model, including the 27 … 70 L\/min range. The scale is valid for water at 20 °C only; for other media the switching point has to be checked against a known flow. The parameter table gives 50 bar for every model; the housing material decides, and the plastic version holds 10 bar.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eScale in L\/min directly on the body\u003c\/li\u003e\u003cli\u003eMechanical principle with reed contact outside the medium\u003c\/li\u003e\u003cli\u003eAccuracy 5 % of the total range\u003c\/li\u003e\u003cli\u003eHousing in POM, aluminium or stainless steel\u003c\/li\u003e\u003cli\u003eOne or two switch points\u003c\/li\u003e\u003cli\u003eSupply 24 V DC or 230 V AC\u003c\/li\u003e\u003cli\u003eFor liquids and gases\u003c\/li\u003e\u003cli\u003eProtection IP67\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453615710534,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKJ_produkt.webp?v=1790331900"},{"product_id":"qskk-kolben-stromungswachter-fur-zentralschmierung","title":"QSKK piston flow switch for centralised lubrication","description":"\u003cp\u003eThe \u003cstrong\u003eQSKK\u003c\/strong\u003e is a mechanical piston flow switch for small flows in one size with G1\/4 and 65 mm overall length. It is particularly suited to centralised lubrication and to liquids in industrial automation and machinery.\u003c\/p\u003e\u003cp\u003eA magnetic piston on a spring is displaced by the flow, and the magnet closes a reed contact outside the wetted part. Setting range \u003cstrong\u003e0.03 … 1.2 L\/min\u003c\/strong\u003e, scale on the body calibrated in \u003cstrong\u003elubricating oil 46 at 20 °C\u003c\/strong\u003e with horizontal mounting. Accuracy \u003cstrong\u003e± 5 % of the total range\u003c\/strong\u003e; a hysteresis is not documented as a figure. Output \u003cstrong\u003edry reed contact\u003c\/strong\u003e, normally open, \u003cstrong\u003eone or two switch points\u003c\/strong\u003e, switching capacity 24 V DC \/ 250 V AC, 100 mA. Supply \u003cstrong\u003e24 V DC ± 20 %\u003c\/strong\u003e or \u003cstrong\u003e230 V AC ± 15 %\u003c\/strong\u003e by order code, status LED on DC only. Connection M12 or cable.\u003c\/p\u003e\u003cp\u003eHousing in nickel-plated brass, anodised aluminium or 304 stainless steel, piston brass, spring stainless steel. Process connection \u003cstrong\u003eG1\/4\u003c\/strong\u003e female. Pressure rating \u003cstrong\u003e50 bar\u003c\/strong\u003e (brass, aluminium) or \u003cstrong\u003e100 bar\u003c\/strong\u003e (stainless steel), medium temperature \u003cstrong\u003e≤ 100 °C\u003c\/strong\u003e, protection \u003cstrong\u003eIP65\u003c\/strong\u003e. A declaration of conformity is not documented in the datasheet. Before sizing, note: The scale is calibrated in lubricating oil; for other media or temperatures the switching point has to be checked against a known flow. Data block and order code name the housing materials differently (copper or nickel-plated brass). An ambient temperature is not documented.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eSetting range for small flows from 0.03 L\/min\u003c\/li\u003e\u003cli\u003eScale calibrated in lubricating oil 46\u003c\/li\u003e\u003cli\u003eAccuracy ± 5 % of the total range\u003c\/li\u003e\u003cli\u003eOne or two switch points\u003c\/li\u003e\u003cli\u003eHousing in brass, aluminium or 304 stainless steel\u003c\/li\u003e\u003cli\u003eUp to 100 bar with stainless housing\u003c\/li\u003e\u003cli\u003eMedium temperature up to 100 °C\u003c\/li\u003e\u003cli\u003eCompact size G1\/4, 65 mm\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453615743302,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKK_produkt.webp?v=1790331901"},{"product_id":"qskl-paddel-stromungswachter-anschluss-messing","title":"QSKL paddle flow switch, brass connection","description":"\u003cp\u003eThe \u003cstrong\u003eQSKL\u003c\/strong\u003e is a mechanical screw-in paddle flow switch for pipes from DN25 to DN150. It is particularly suited to liquids and gases in industrial automation, machinery, air compression, refrigeration and air conditioning.\u003c\/p\u003e\u003cp\u003eA spring-loaded paddle (baffle) stands across the pipe; the flow deflects it and a linkage operates a microswitch. Setting range across the product \u003cstrong\u003e20 … 1800 L\/min\u003c\/strong\u003e, set by the pipe bore and the paddle fitted. Five paddles (31 … 132 mm long) are supplied. Repeatability \u003cstrong\u003e± 2.5 % of the total range\u003c\/strong\u003e; an accuracy is not documented; hysteresis 8 … 80 L\/min by bore and paddle. Output \u003cstrong\u003emicroswitch, SPDT\u003c\/strong\u003e, switching capacity \u003cstrong\u003e250 V AC, 3 A\u003c\/strong\u003e. Connection via screw terminals, with a PG7 gland on the IP67 case.\u003c\/p\u003e\u003cp\u003eBody and paddle in stainless steel, process connection and connecting rod in brass, seal NBR, outer housing ABS, weight 0.55 kg. Process connection \u003cstrong\u003eR1\u003c\/strong\u003e male. Pressure rating \u003cstrong\u003e16 bar\u003c\/strong\u003e, pressure loss 0.08 bar at maximum flow, medium temperature \u003cstrong\u003e90 °C\u003c\/strong\u003e, ambient -25 … +80 °C, protection \u003cstrong\u003eIP33\u003c\/strong\u003e, IP67 with the optional case. A declaration of conformity is not documented in the datasheet. Before sizing, note: As supplied the switch is only IP33, and the IP67 case is needed for outdoor or washdown duty. Stainless steel and brass in the same wetted path form a galvanic cell in conductive water. The data block (90 °C) and the rating plate (120 °C) give different temperatures.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMechanical principle, mechanical and electrical parts separated\u003c\/li\u003e\u003cli\u003eFive paddles supplied\u003c\/li\u003e\u003cli\u003eOne device for pipes from DN25 to DN150\u003c\/li\u003e\u003cli\u003eRepeatability ± 2.5 % of the total range\u003c\/li\u003e\u003cli\u003eSPDT contact 250 V AC, 3 A\u003c\/li\u003e\u003cli\u003eLow pressure loss 0.08 bar\u003c\/li\u003e\u003cli\u003eFactory setting to the wanted switching value offered\u003c\/li\u003e\u003cli\u003eOptional IP67 protective case\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453615776070,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKL_produkt.webp?v=1790331901"},{"product_id":"qskm-paddel-stromungswachter-medienberuhrt-edelstahl","title":"QSKM all-stainless paddle flow switch","description":"\u003cp\u003eThe \u003cstrong\u003eQSKM\u003c\/strong\u003e is a mechanical screw-in paddle flow switch with body, process connection, connecting rod and paddle in stainless steel. It is particularly suited to liquids and gases in industrial automation, machinery, air compression, refrigeration and air conditioning in pipes of DN25 and above.\u003c\/p\u003e\u003cp\u003eA spring-loaded paddle (baffle) stands across the pipe; the flow deflects it and a linkage operates a microswitch. Setting range across the product \u003cstrong\u003e20 … 1800 L\/min\u003c\/strong\u003e, set by the pipe bore and the paddle fitted. Five paddles (31 … 132 mm long) are supplied. Repeatability \u003cstrong\u003e± 2.5 % of the total range\u003c\/strong\u003e; an accuracy is not documented; hysteresis 8 … 80 L\/min by bore and paddle. Output \u003cstrong\u003emicroswitch, SPDT\u003c\/strong\u003e, switching capacity \u003cstrong\u003e250 V AC, 3 A\u003c\/strong\u003e. Connection via screw terminals, with a PG7 gland on the IP67 case.\u003c\/p\u003e\u003cp\u003eAll four wetted parts in stainless steel; no steel grade is named. Seal NBR, outer housing ABS, weight 0.55 kg. Process connection \u003cstrong\u003eR1\u003c\/strong\u003e male. Pressure rating \u003cstrong\u003e16 bar\u003c\/strong\u003e, pressure loss 0.08 bar at maximum flow, medium temperature \u003cstrong\u003e90 °C\u003c\/strong\u003e, ambient -25 … +80 °C, protection \u003cstrong\u003eIP33\u003c\/strong\u003e, IP67 with the optional case. A declaration of conformity is not documented in the datasheet. Before sizing, note: As supplied the switch is only IP33, and the IP67 case is needed for outdoor or washdown duty. The data block (90 °C) and the rating plate (120 °C) give different temperatures. Bore, medium and switching value have to be given with the order; the order code has no field for them.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eAll wetted parts in stainless steel\u003c\/li\u003e\u003cli\u003eMechanical principle, mechanical and electrical parts separated\u003c\/li\u003e\u003cli\u003eFive paddles supplied\u003c\/li\u003e\u003cli\u003eSetting range 20 … 1800 L\/min by bore and paddle\u003c\/li\u003e\u003cli\u003eRepeatability ± 2.5 % of the total range\u003c\/li\u003e\u003cli\u003eSPDT contact 250 V AC, 3 A\u003c\/li\u003e\u003cli\u003eLow pressure loss 0.08 bar\u003c\/li\u003e\u003cli\u003eOptional IP67 protective case\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453617250630,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKM_produkt.webp?v=1790331901"},{"product_id":"qskn-paddel-stromungswachter-im-edelstahlgehause","title":"QSKN paddle flow switch in stainless enclosure","description":"\u003cp\u003eThe \u003cstrong\u003eQSKN\u003c\/strong\u003e is a mechanical screw-in paddle flow switch with wetted parts and terminal enclosure in stainless steel. It is particularly suited to liquids and gases in fire protection, chemicals, industrial automation, machinery, smelting and hydraulic lubrication.\u003c\/p\u003e\u003cp\u003eA spring-loaded paddle (baffle) stands across the pipe; the flow deflects it and a linkage operates a microswitch. Setting range across the product \u003cstrong\u003e20 … 1800 L\/min\u003c\/strong\u003e, set by the pipe bore and the paddle fitted. Five paddles (31 … 132 mm long) are supplied. Repeatability \u003cstrong\u003e± 2.5 % of the total range\u003c\/strong\u003e; an accuracy is not documented; hysteresis 8 … 80 L\/min by bore and paddle. Output \u003cstrong\u003emicroswitch, SPDT\u003c\/strong\u003e, switching capacity \u003cstrong\u003e250 V AC, 3 A\u003c\/strong\u003e. Connection via screw terminals and one cable entry.\u003c\/p\u003e\u003cp\u003eBody, process connection, connecting rod and paddle in stainless steel, terminal enclosure in stainless steel, weight 0.55 kg. Process connection \u003cstrong\u003eR1\u003c\/strong\u003e taper thread for pipes of DN25 and above. Pressure rating \u003cstrong\u003e16 bar\u003c\/strong\u003e per parameter table, pressure loss 0.08 bar at maximum flow, medium temperature up to 250 °C, ambient \u003cstrong\u003e-25 … +80 °C\u003c\/strong\u003e. A declaration of conformity is not documented in the datasheet. Before sizing, note: As explosion protection the datasheet names only “EX CT4”, without type of protection, gas group or certificate, and T4 does not match 250 °C, so explosion protection is not substantiated. The pressure is 100 bar in the data block and 16 bar in the parameter table. No protection grade is given.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eWetted parts and enclosure in stainless steel\u003c\/li\u003e\u003cli\u003eMechanical principle, mechanical and electrical parts separated\u003c\/li\u003e\u003cli\u003eFive paddles supplied\u003c\/li\u003e\u003cli\u003eSetting range 20 … 1800 L\/min by bore and paddle\u003c\/li\u003e\u003cli\u003eRepeatability ± 2.5 % of the total range\u003c\/li\u003e\u003cli\u003eSPDT contact 250 V AC, 3 A\u003c\/li\u003e\u003cli\u003eLow pressure loss 0.08 bar\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453617283398,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKN_produkt.webp?v=1790331900"},{"product_id":"qsko-inline-paddel-stromungswachter-paddel-messing","title":"QSKO in-line paddle flow switch, brass paddle","description":"\u003cp\u003eThe \u003cstrong\u003eQSKO\u003c\/strong\u003e is a mechanical in-line paddle flow switch with a through-bore body for sizes DN15 to DN50. It is particularly suited to liquids and gases in industrial automation, machinery, air compression, refrigeration and air conditioning in pipes up to 50 mm.\u003c\/p\u003e\u003cp\u003eA spring-loaded paddle sits in the through bore; the flow deflects it and a linkage operates a microswitch. Setting range fixed by the model, twelve models from six bores with two paddles A and B each, from \u003cstrong\u003e1.5 … 10 L\/min\u003c\/strong\u003e to \u003cstrong\u003e50 … 150 L\/min\u003c\/strong\u003e, fine setting by a knob. Repeatability \u003cstrong\u003e± 2.5 of the total range\u003c\/strong\u003e, without a per cent sign in the datasheet; an accuracy is not documented; hysteresis 2 … 8 L\/min by model, measured with water at 20 °C. Output \u003cstrong\u003emicroswitch, normally open and normally closed\u003c\/strong\u003e, switching capacity \u003cstrong\u003e250 V AC, 3 A\u003c\/strong\u003e. Connection via screw terminals.\u003c\/p\u003e\u003cp\u003eBody stainless steel, process connection, connecting rod and paddle brass, seal NBR, outer housing ABS. Process connection female thread \u003cstrong\u003eR1\/2, R3\/4, R1, R1¼, R1½ or R2\u003c\/strong\u003e at both ends. Pressure rating \u003cstrong\u003e16 bar\u003c\/strong\u003e, medium temperature \u003cstrong\u003e90 °C\u003c\/strong\u003e, ambient -25 … +85 °C, protection \u003cstrong\u003eIP33\u003c\/strong\u003e. A declaration of conformity is not documented in the datasheet. Before sizing, note: The IP67 case shown in the photograph has no order field. Three of the four wetted parts are brass, which with the stainless body forms a galvanic cell in conductive water.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eTwelve models from DN15 to DN50\u003c\/li\u003e\u003cli\u003eSwitching point set by a knob\u003c\/li\u003e\u003cli\u003eHysteresis documented for every model\u003c\/li\u003e\u003cli\u003eSPDT contact 250 V AC, 3 A\u003c\/li\u003e\u003cli\u003eMechanical and electrical parts completely separated\u003c\/li\u003e\u003cli\u003eFour mounting positions permitted\u003c\/li\u003e\u003cli\u003eSame female thread at both ends\u003c\/li\u003e\u003cli\u003eFactory setting to the wanted switching value offered\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453617316166,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKO_produkt.webp?v=1790331900"},{"product_id":"qskp-inline-paddel-stromungswachter-medienberuhrt-edelstahl","title":"QSKP all-stainless in-line paddle flow switch","description":"\u003cp\u003eThe \u003cstrong\u003eQSKP\u003c\/strong\u003e is a mechanical in-line paddle flow switch with a through-bore body in which body, process connection, connecting rod and paddle are all stainless steel. It is particularly suited to liquids and gases in industrial automation, machinery, air compression, refrigeration and air conditioning.\u003c\/p\u003e\u003cp\u003eA spring-loaded paddle sits in the through bore; the flow deflects it and a linkage operates a microswitch. Setting range fixed by the model, twelve models from six bores DN15 to DN50 with two paddles A and B each, from \u003cstrong\u003e4.2 … 18 L\/min\u003c\/strong\u003e to \u003cstrong\u003e50 … 150 L\/min\u003c\/strong\u003e, fine setting by a knob. Repeatability \u003cstrong\u003e± 2.5 of the total range\u003c\/strong\u003e, without a per cent sign in the datasheet; an accuracy is not documented; hysteresis 2 … 8 L\/min by model, measured with water at 20 °C. Output \u003cstrong\u003emicroswitch, normally open and normally closed\u003c\/strong\u003e, switching capacity \u003cstrong\u003e250 V AC, 3 A\u003c\/strong\u003e. Connection via screw terminals, numbered 3, 1 and 2 in the wiring diagram.\u003c\/p\u003e\u003cp\u003eAll four wetted parts in stainless steel, seal NBR, outer housing ABS. Process connection female thread \u003cstrong\u003eR1\/2, R3\/4, R1, R1¼, R1½ or R2\u003c\/strong\u003e at both ends. Pressure rating \u003cstrong\u003e16 bar\u003c\/strong\u003e, medium temperature \u003cstrong\u003e90 °C\u003c\/strong\u003e, ambient -25 … +120 °C, protection \u003cstrong\u003eIP33\u003c\/strong\u003e. A declaration of conformity is not documented in the datasheet. Before sizing, note: For DN15 with paddle A the table gives 4.2 … 18 L\/min, the same as DN20, and this has to be settled with an enquiry for DN15. The IP67 case shown in the photograph has no order field. The medium limit of 90 °C governs, not the higher ambient limit.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eAll wetted parts in stainless steel\u003c\/li\u003e\u003cli\u003eTwelve models from DN15 to DN50\u003c\/li\u003e\u003cli\u003eSwitching point set by a knob\u003c\/li\u003e\u003cli\u003eHysteresis documented for every model\u003c\/li\u003e\u003cli\u003eSPDT contact 250 V AC, 3 A\u003c\/li\u003e\u003cli\u003eMechanical and electrical parts completely separated\u003c\/li\u003e\u003cli\u003eFour mounting positions permitted\u003c\/li\u003e\u003cli\u003eSame female thread at both ends\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453617348934,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKP_produkt.webp?v=1790331901"},{"product_id":"qskq-inline-paddel-stromungswachter-im-edelstahlgehause","title":"QSKQ in-line paddle flow switch in stainless enclosure","description":"\u003cp\u003eThe \u003cstrong\u003eQSKQ\u003c\/strong\u003e is a mechanical in-line paddle flow switch with wetted parts and terminal enclosure in stainless steel for sizes DN20 to DN40. It is particularly suited to liquids and gases in industrial automation, machinery, cooling, fire protection and petrochemicals.\u003c\/p\u003e\u003cp\u003eA spring-loaded paddle sits in the through bore; the flow deflects it and a linkage operates a microswitch. Setting range fixed by the model, eight models from four bores with two paddles A and B each, from \u003cstrong\u003e4.2 … 18 L\/min\u003c\/strong\u003e to \u003cstrong\u003e25 … 111 L\/min\u003c\/strong\u003e, fine setting by a knob. Repeatability \u003cstrong\u003e± 2.5 % of the total range\u003c\/strong\u003e; an accuracy is not documented; hysteresis 2 … 7 L\/min by model, measured with water at 20 °C. Output \u003cstrong\u003emicroswitch, normally open and normally closed\u003c\/strong\u003e, switching capacity \u003cstrong\u003e250 V AC, 3 A\u003c\/strong\u003e. Connection via screw terminals, numbered 3, 1 and 2.\u003c\/p\u003e\u003cp\u003eBody, process connection, connecting rod and paddle in stainless steel, terminal enclosure in stainless steel. Process connection taper thread \u003cstrong\u003eR3\/4, R1, R1¼ or R1½\u003c\/strong\u003e at both ends. Pressure rating \u003cstrong\u003e100 bar\u003c\/strong\u003e, pressure loss 0.08 bar at maximum flow, medium temperature \u003cstrong\u003e250 °C\u003c\/strong\u003e, protection \u003cstrong\u003eIP67\u003c\/strong\u003e. An Ex marking is not given in the datasheet. A declaration of conformity is not documented in the datasheet. Before sizing, note: Type of protection, temperature class and certificate are not documented, so explosion protection is not substantiated. An ambient temperature is not documented. Neither a thread size nor a gland is given for the cable entry.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eWetted parts and enclosure in stainless steel\u003c\/li\u003e\u003cli\u003ePressure rating 100 bar\u003c\/li\u003e\u003cli\u003eMedium temperature up to 250 °C\u003c\/li\u003e\u003cli\u003eProtection IP67\u003c\/li\u003e\u003cli\u003eRepeatability ± 2.5 % of the total range\u003c\/li\u003e\u003cli\u003eSwitching point set by a knob\u003c\/li\u003e\u003cli\u003eSPDT contact 250 V AC, 3 A\u003c\/li\u003e\u003cli\u003eLow pressure loss 0.08 bar\u003c\/li\u003e\u003cli\u003eFour mounting positions permitted\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453620691270,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKQ_produkt.webp?v=1790331901"},{"product_id":"qskr-paddel-stromungswachter-im-t-stuck","title":"QSKR paddle flow switch in tee","description":"\u003cp\u003eThe \u003cstrong\u003eQSKR\u003c\/strong\u003e is a mechanical paddle flow switch in a tee without bellows, with the magnet outside the flowing water. It is particularly suited to liquids and gases in industrial automation, machinery, air compression and refrigeration, and according to the datasheet also to sewage because of the magnet position.\u003c\/p\u003e\u003cp\u003eA spring-loaded paddle hangs into the tee; the flow deflects it and a microswitch above operates. Flow range in water \u003cstrong\u003e5.3 … 7.2 L\/min\u003c\/strong\u003e at DN15 up to \u003cstrong\u003e16 … 22 L\/min\u003c\/strong\u003e at DN25, with a second paddle in each size. The reset point is documented for each size. Accuracy and repeatability are not documented as figures. Output \u003cstrong\u003emicroswitch, SPDT\u003c\/strong\u003e, one or two switch points, normally open by default, \u003cstrong\u003e5 A\u003c\/strong\u003e, up to \u003cstrong\u003e250 V AC\u003c\/strong\u003e without status indicator; with the optional status indicator the supply is \u003cstrong\u003e24 V DC ± 10 %\u003c\/strong\u003e. Setting by a knob, connection \u003cstrong\u003eDIN 43650A\u003c\/strong\u003e connector or 0.8 m cable.\u003c\/p\u003e\u003cp\u003eWetted body in nickel-plated brass, paddle stainless steel, seal NBR. Process connection tee with \u003cstrong\u003eG1\/2 to G2\u003c\/strong\u003e, female or male ends. Pressure rating \u003cstrong\u003e25 bar\u003c\/strong\u003e, higher on request, pressure loss \u003cstrong\u003e0.01 bar\u003c\/strong\u003e at maximum flow, operating temperature \u003cstrong\u003e-10 … +80 °C\u003c\/strong\u003e, protection \u003cstrong\u003eIP65\u003c\/strong\u003e. A declaration of conformity is not documented in the datasheet. Before sizing, note: Flow figures are given for DN15 to DN25 only and are missing for DN32 to DN50. DN40 and DN50 are marked stainless only and cannot be ordered. The status indicator and 250 V AC are mutually exclusive, and the indicator has no order field.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eNo bellows, magnet outside the flowing water\u003c\/li\u003e\u003cli\u003eAction and reset point documented for each size\u003c\/li\u003e\u003cli\u003eVery low pressure loss 0.01 bar\u003c\/li\u003e\u003cli\u003eSPDT contact 5 A up to 250 V AC\u003c\/li\u003e\u003cli\u003eOne or two switch points\u003c\/li\u003e\u003cli\u003eSwitching point set by a knob\u003c\/li\u003e\u003cli\u003eDIN 43650A connector or cable\u003c\/li\u003e\u003cli\u003ePressure rating 25 bar, protection IP65\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453620724038,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKR_produkt.webp?v=1790331901"},{"product_id":"qgka-gasturbinenzahler-mit-flansch","title":"QGKA gas turbine flowmeter, flanged","description":"\u003cp\u003eThe \u003cstrong\u003eQGKA\u003c\/strong\u003e is a turbine flowmeter for gas with flange connection. It is particularly suited to measuring gas volume flow in pipes DN25 to DN300 where flow, total, temperature and pressure are to be read on the device.\u003c\/p\u003e\n\u003cp\u003eTurbine principle, the gas drives a bladed rotor and the electronics count its revolutions. Flow range \u003cstrong\u003e2.5 … 6500 m³\/h\u003c\/strong\u003e depending on nominal size, lower limit at a flow velocity of 0.5 m\/s. Accuracy \u003cstrong\u003eclass 1.5\u003c\/strong\u003e. Output \u003cstrong\u003e4 … 20 mA, pulse and RS485\u003c\/strong\u003e, an RS485 protocol is not documented. The supply voltage is not documented. LCD display with keys on the head. Process connection flange, \u003cstrong\u003eDN25 … DN300\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eBody of aluminium alloy or stainless steel, nominal pressure 1.6 MPa in both size tables. Medium temperature -20 … +80 °C, ambient temperature -20 … +50 °C. The protection grade is not documented. Explosion protection per datasheet Ex ib IIB T4; certificate, notified body and ATEX or IECEx number are not documented. A declaration of conformity is not documented in the datasheet. Before sizing, note: the order code offers eight pressure ratings from 1.6 to 42 MPa, the size tables give only 1.6 MPa for every size. DN32, DN40, DN65 and DN125 exist in stainless steel only, DN200, DN250 and DN300 in aluminium only. Supply voltage, wiring diagram and pin assignment are missing.\u003c\/p\u003e\n\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTurbine principle for gas, 2.5 … 6500 m³\/h\u003c\/li\u003e\n\u003cli\u003eNominal sizes DN25 … DN300 with flange connection\u003c\/li\u003e\n\u003cli\u003eAccuracy class 1.5 with non-linear correction\u003c\/li\u003e\n\u003cli\u003eTemperature and pressure compensation in the head as an option\u003c\/li\u003e\n\u003cli\u003eLCD display for flow, total, temperature and pressure\u003c\/li\u003e\n\u003cli\u003eOutputs 4 … 20 mA, pulse and RS485\u003c\/li\u003e\n\u003cli\u003eInstrument factor set on site by key\u003c\/li\u003e\n\u003cli\u003eBody of aluminium alloy or stainless steel\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453620756806,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QGKA_produkt.webp?v=1790331840"},{"product_id":"qgkb-drallwirbel-durchflussmesser-fur-gas","title":"QGKB precession vortex gas flowmeter","description":"\u003cp\u003eThe \u003cstrong\u003eQGKB\u003c\/strong\u003e is a precession vortex flowmeter for gas with pressure and temperature measurement in the same housing. It is particularly suited to measuring working and standard volume flow of gas with automatic correction of temperature, pressure and compression factor.\u003c\/p\u003e\n\u003cp\u003ePrecession vortex principle, the gas is set spinning and the precession frequency of the swirl centre is counted. Flow range \u003cstrong\u003e0.3 … 3600 m³\/h\u003c\/strong\u003e depending on nominal size. System accuracy after correction \u003cstrong\u003eclass 1.0 or 1.5\u003c\/strong\u003e. Outputs \u003cstrong\u003e4 … 20 mA and pulse, isolated, limit alarms and RS485\u003c\/strong\u003e up to 1.2 km. Supply \u003cstrong\u003e24 V DC ± 15 %\u003c\/strong\u003e or 3.6 V lithium cell. Dot matrix display for volume flow, totals, pressure and temperature. Nominal sizes \u003cstrong\u003eDN15 … DN200\u003c\/strong\u003e, inlet run 10 × DN, outlet run 5 × DN.\u003c\/p\u003e\n\u003cp\u003eBody of stainless steel or aluminium alloy, process connection flange, nominal pressure 1.6, 2.5 or 4.0 MPa. Medium temperature -20 … +80 °C, ambient temperature -30 … +65 °C. Protection grade IP65, cable entry M20 × 1.5. Explosion protection per datasheet Ex d IIB T4 and Ex ia IIC T4 without assignment to a version, a certificate is not documented. A declaration of conformity is not documented in the datasheet. Before sizing, note: according to the order code the battery version has neither display nor output, all display and output data apply to the mains version only. Which version carries Ex d and which Ex ia is not stated. For versions A and B the table gives only one range per size.\u003c\/p\u003e\n\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAutomatic correction of temperature, pressure and compression factor\u003c\/li\u003e\n\u003cli\u003eFlow range 0.3 … 3600 m³\/h, DN15 … DN200\u003c\/li\u003e\n\u003cli\u003eSystem accuracy class 1.0 or 1.5\u003c\/li\u003e\n\u003cli\u003eDot matrix display, head turns 360°\u003c\/li\u003e\n\u003cli\u003e4 … 20 mA and pulse isolated, RS485 up to 1.2 km\u003c\/li\u003e\n\u003cli\u003eLimit alarms for upper and lower value\u003c\/li\u003e\n\u003cli\u003eDaily and monthly records kept for five years\u003c\/li\u003e\n\u003cli\u003eProtection grade IP65\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453620789574,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QGKB_produkt.webp?v=1790331840"},{"product_id":"qgkc-mems-gasmassedurchflussmesser-led-anzeige","title":"QGKC MEMS gas mass flowmeter, LED display","description":"\u003cp\u003eThe \u003cstrong\u003eQGKC\u003c\/strong\u003e is a thermal MEMS mass flowmeter for small gas flows with a four-digit LED display, in the bores DN3 and DN8. It is particularly suited to clean, dry gases where the mass flow is to be measured directly without temperature or pressure compensation; it is calibrated for one gas chosen in the order code.\u003c\/p\u003e\n\u003cp\u003eThermal MEMS chip, the gas carries heat away from the sensor, which gives the mass flow directly. Full scale \u003cstrong\u003e2, 3, 4 or 5 SLPM\u003c\/strong\u003e on DN3 and \u003cstrong\u003e10 … 50 SLPM\u003c\/strong\u003e on DN8, turndown 100:1. Accuracy \u003cstrong\u003e± (1.5 + 0.2 F.S.) %\u003c\/strong\u003e, read as 1.5 % of reading plus 0.2 % of full scale, repeatability \u003cstrong\u003e0.25 %\u003c\/strong\u003e, response time 10 ms. Outputs \u003cstrong\u003eRS485 or RS232\u003c\/strong\u003e and linear \u003cstrong\u003e0.5 … 4.5 V\u003c\/strong\u003e. Supply \u003cstrong\u003e8 … 24 V DC, 50 mA\u003c\/strong\u003e. Connection via five-pin socket.\u003c\/p\u003e\n\u003cp\u003eProcess connection BSPT 1\/4 (R1\/4) or, on DN3, a 4, 6 or 8 mm push-in fitting. Working pressure 0.5 MPa maximum, pressure loss at full scale 100 Pa (DN3) or 600 Pa (DN8). Operating temperature -10 … +55 °C, humidity below 95 % RH without icing or condensation. Body material, protection grade and explosion protection are not stated. A declaration of conformity is not documented in the datasheet. Before sizing, note: the 50 SLPM full scale is in the parameter table but has no order code. For oxygen and hydrogen there is no statement on suitability or ignition protection. Pin assignment and mating connector of the socket are not documented.\u003c\/p\u003e\n\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDirect mass flow measurement without temperature or pressure compensation\u003c\/li\u003e\n\u003cli\u003eTurndown 100:1\u003c\/li\u003e\n\u003cli\u003eRepeatability 0.25 %\u003c\/li\u003e\n\u003cli\u003eResponse time 10 ms, 20 … 1000 ms on request\u003c\/li\u003e\n\u003cli\u003eFour-digit LED display for instantaneous and totalized flow\u003c\/li\u003e\n\u003cli\u003eRS485 or RS232 plus analogue output 0.5 … 4.5 V\u003c\/li\u003e\n\u003cli\u003eHighest and lowest value since power-up recorded\u003c\/li\u003e\n\u003cli\u003eCalibration for one of seven gases selectable\u003c\/li\u003e\n\u003cli\u003eCompact, 55 … 77 g\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453624066374,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QGKC_produkt.webp?v=1790331840"},{"product_id":"qgke-thermischer-gasdurchflusssensor-farbdisplay-ip40","title":"QGKE thermal gas flow sensor, colour display, IP40","description":"\u003cp\u003eThe \u003cstrong\u003eQGKE\u003c\/strong\u003e is a thermal flow sensor for gas with a colour display that turns by 180° and two switch outputs. It is particularly suited to dry air and nitrogen where instantaneous value, total and limits are needed on the device.\u003c\/p\u003e\n\u003cp\u003eThermal mass flow measurement, the gas stream carries heat away from the heated sensor, one flow direction. Rated flow \u003cstrong\u003e2 … 500, 5 … 1000 or 10 … 2000 L\/min\u003c\/strong\u003e by size. Display accuracy \u003cstrong\u003e± 3 % F.S. ± 1 digit\u003c\/strong\u003e, analogue accuracy ± 5 % F.S., repeatability \u003cstrong\u003e± 1 % F.S. ± 1 digit\u003c\/strong\u003e, response time ≤ 100 ms. Outputs: \u003cstrong\u003etwo open-collector switch outputs, NPN or PNP\u003c\/strong\u003e, 125 mA maximum, short-circuit protected, with differential, window, cumulative flow and cumulative pulse modes, plus \u003cstrong\u003e1 … 5 V, 4 … 20 mA or RS485\u003c\/strong\u003e. Supply \u003cstrong\u003e12 … 24 V DC ± 10 %\u003c\/strong\u003e, ≤ 50 mA. Connection via six-core PVC cable Ø 4 mm.\u003c\/p\u003e\n\u003cp\u003ePlastic housing, process connection Rc1\/2, G1\/2, Rc3\/4, G3\/4, G1, R1 or G1-1\/2 by size. Working pressure 0 … 1.0 MPa, pressure resistance 1.5 MPa. Medium and ambient temperature 0 … +50 °C without dew or ice. Protection grade IP40. The EMC standards IEC 61000-6-2 and IEC 61000-6-4 are named; a declaration of conformity is not documented in the datasheet. Before sizing, note: the 3000 and 6000 L\/min sizes appear only in the order code and the dimension drawings, no technical data exist for them. Whether NPN or PNP applies cannot be read unambiguously from the datasheet. The core assignment changes with the output version, so a cable does not fit every version.\u003c\/p\u003e\n\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eColour display, turns by 180°\u003c\/li\u003e\n\u003cli\u003eShows instantaneous flow, total and percentage of range\u003c\/li\u003e\n\u003cli\u003eTwo switch outputs with window, differential and cumulative modes\u003c\/li\u003e\n\u003cli\u003eAnalogue 1 … 5 V or 4 … 20 mA, alternatively RS485\u003c\/li\u003e\n\u003cli\u003eRepeatability ± 1 % F.S. ± 1 digit\u003c\/li\u003e\n\u003cli\u003eWorking pressure up to 1.0 MPa, pressure resistance 1.5 MPa\u003c\/li\u003e\n\u003cli\u003eEMC to IEC 61000-6-2 and IEC 61000-6-4\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453624099142,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QGKE_produkt.webp?v=1790331840"},{"product_id":"qgkf-drehkolbengaszahler-mit-zustandskorrektur","title":"QGKF Roots gas meter with volume correction","description":"\u003cp\u003eThe \u003cstrong\u003eQGKF\u003c\/strong\u003e is a Roots rotary gas meter with temperature and pressure measurement in the same body and automatic conversion to the reference state. It is particularly suited to measuring gas quantities where the volume is to be shown and transmitted referred to 101.325 kPa and 20 °C.\u003c\/p\u003e\n\u003cp\u003ePositive displacement principle, two lobed rotors scoop the gas into fixed portions and the electronics count them. Flow range \u003cstrong\u003e20 … 1600 m³\/h\u003c\/strong\u003e by size, rangeability \u003cstrong\u003e20:1 to 120:1\u003c\/strong\u003e. Accuracy \u003cstrong\u003eclass 1.0 or 1.5\u003c\/strong\u003e. Automatic correction of temperature, pressure and compression factor. Outputs \u003cstrong\u003epulse and RS485\u003c\/strong\u003e (version F) or \u003cstrong\u003e4 … 20 mA, pulse and RS485\u003c\/strong\u003e (version A). Supply by internal battery or external, the voltage is not documented. Three-line LCD with standard volume, standard flow, temperature and pressure. Nominal sizes \u003cstrong\u003eDN25 … DN200\u003c\/strong\u003e, flange connection.\u003c\/p\u003e\n\u003cp\u003eBody of aluminium alloy up to DN100, from DN150 aluminium per table, structure form I square or II round. Flange with bolt circle Ø 75 … Ø 295 mm, flow direction top down. Nominal pressure 1.0 MPa per parameter table, weight 9 kg (DN25) to 125 kg (DN200). Protection grade and explosion protection are not documented. A declaration of conformity is not documented in the datasheet. Before sizing, note: which size reaches class 1.0 and which class 1.5 is not stated. The order code offers 1, 5 and 10 bar, data exist for 1.0 MPa only. Supply voltage, battery type, service life and wiring diagram are not documented.\u003c\/p\u003e\n\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePositive displacement principle with two lobed rotors\u003c\/li\u003e\n\u003cli\u003eRangeability up to 120:1 depending on size\u003c\/li\u003e\n\u003cli\u003eConversion to 101.325 kPa and 20 °C\u003c\/li\u003e\n\u003cli\u003eCorrection of temperature, pressure and compression factor\u003c\/li\u003e\n\u003cli\u003eThree-line high-contrast LCD\u003c\/li\u003e\n\u003cli\u003eOutputs pulse, 4 … 20 mA and RS485\u003c\/li\u003e\n\u003cli\u003eData storage kept through battery change and power failure\u003c\/li\u003e\n\u003cli\u003eNominal sizes DN25 … DN200 with flange\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453624131910,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QGKF_produkt.webp?v=1790331840"},{"product_id":"qgkh-mems-gasmassedurchflussmesser-r3-4","title":"QGKH MEMS gas mass flowmeter, R3\/4","description":"\u003cp\u003eThe \u003cstrong\u003eQGKH\u003c\/strong\u003e is a thermal MEMS mass flowmeter for gas with R3\/4 thread connection and stainless steel body. It is particularly suited to clean, relatively dry gases up to 1000 slpm; it is calibrated for one gas chosen in the order code.\u003c\/p\u003e\n\u003cp\u003eThermal MEMS chip as a solid-state sensing element without thin membrane; the mass flow is measured directly, no temperature or pressure compensation is needed. Full scales \u003cstrong\u003e300, 500, 600, 800 or 1000 slpm\u003c\/strong\u003e. Accuracy \u003cstrong\u003e± 1.5 % F.S.\u003c\/strong\u003e, response time 20 ms. Outputs \u003cstrong\u003e1 … 5 V or 4 … 20 mA\u003c\/strong\u003e in a three-wire circuit and \u003cstrong\u003eRS485 with Modbus or I²C\u003c\/strong\u003e. Supply \u003cstrong\u003e8 … 24 V DC, 50 mA\u003c\/strong\u003e. Connection via \u003cstrong\u003eM12 × 1\u003c\/strong\u003e connector. OLED display with two of the output versions only. Calibration with air at 0 °C and 101.325 kPa.\u003c\/p\u003e\n\u003cp\u003eBody of stainless steel, aluminium alloy on request. Process connection R3\/4, working pressure 0.8 MPa maximum. Medium temperature -10 … +65 °C, ambient temperature -25 … +85 °C, humidity 0 … 100 % RH. Protection grade IP40. Explosion protection is not documented. A declaration of conformity is not documented in the datasheet. Before sizing, note: flow range, maximum pressure, process connection and response time are marked customized or optional, no standard version is stated. The flow figures are standard litres at 0 °C, while the order code writes L\/min without a reference. For oxygen and hydrogen there is no statement on suitability or ignition protection.\u003c\/p\u003e\n\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDirect mass flow measurement without temperature or pressure compensation\u003c\/li\u003e\n\u003cli\u003eSolid-state sensor without membrane, resists clogging and pressure shock\u003c\/li\u003e\n\u003cli\u003eWithstands condensation, humidity 0 … 100 % RH\u003c\/li\u003e\n\u003cli\u003eResponse time 20 ms\u003c\/li\u003e\n\u003cli\u003eAnalogue 1 … 5 V or 4 … 20 mA, digital RS485 Modbus or I²C\u003c\/li\u003e\n\u003cli\u003eThread connection R3\/4, stainless steel\u003c\/li\u003e\n\u003cli\u003eShock resistant up to 100 g\u003c\/li\u003e\n\u003cli\u003eM12 × 1 connector\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453624164678,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QGKH_produkt.webp?v=1790331840"},{"product_id":"qgki-mems-gasmassedurchflussmesser-mpt-1","title":"QGKI MEMS gas mass flowmeter, MPT 1\"","description":"\u003cp\u003eThe \u003cstrong\u003eQGKI\u003c\/strong\u003e is a thermal MEMS mass flowmeter for gas with MPT 1\" thread connection and stainless steel body. It is particularly suited to clean, relatively dry gases up to 1600 slpm; it is calibrated for one gas chosen in the order code.\u003c\/p\u003e\n\u003cp\u003eThermal MEMS chip as a solid-state sensing element without thin membrane; the mass flow is measured directly, no temperature or pressure compensation is needed. Full scales \u003cstrong\u003e500, 600, 800, 1000, 1200 or 1600 slpm\u003c\/strong\u003e. Accuracy \u003cstrong\u003e± 1.5 % F.S.\u003c\/strong\u003e, response time 20 ms. Outputs \u003cstrong\u003e1 … 5 V or 4 … 20 mA\u003c\/strong\u003e in a three-wire circuit and \u003cstrong\u003eRS485 with Modbus or I²C\u003c\/strong\u003e. Supply \u003cstrong\u003e8 … 24 V DC, 50 mA\u003c\/strong\u003e. Connection via \u003cstrong\u003eM12 × 1\u003c\/strong\u003e connector. OLED display with two of the output versions only. Calibration with air at 0 °C and 101.325 kPa.\u003c\/p\u003e\n\u003cp\u003eBody of stainless steel, aluminium alloy on request. Process connection MPT 1\", working pressure 0.8 MPa maximum. Medium temperature -10 … +65 °C, ambient temperature -25 … +85 °C, humidity 0 … 100 % RH. Protection grade IP40. Explosion protection is not documented. A declaration of conformity is not documented in the datasheet. Before sizing, note: several figures, among them flow range, maximum pressure and response time, are marked customizable or optional, no standard version is stated. The flow figures are standard litres at 0 °C, while the order code writes L\/min without a reference. For oxygen and hydrogen there is no statement on suitability or ignition protection.\u003c\/p\u003e\n\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDirect mass flow measurement without temperature or pressure compensation\u003c\/li\u003e\n\u003cli\u003eSolid-state sensor without membrane, resists clogging and pressure shock\u003c\/li\u003e\n\u003cli\u003eWithstands condensation, humidity 0 … 100 % RH\u003c\/li\u003e\n\u003cli\u003eResponse time 20 ms\u003c\/li\u003e\n\u003cli\u003eAnalogue 1 … 5 V or 4 … 20 mA, digital RS485 Modbus or I²C\u003c\/li\u003e\n\u003cli\u003eThread connection MPT 1\", stainless steel\u003c\/li\u003e\n\u003cli\u003eShock resistant up to 100 g\u003c\/li\u003e\n\u003cli\u003eM12 × 1 connector\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453627703622,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QGKI_produkt.webp?v=1790331873"},{"product_id":"qgkj-mems-gasmassedurchflussmesser-g3-8","title":"QGKJ MEMS gas mass flowmeter, G3\/8","description":"\u003cp\u003eThe \u003cstrong\u003eQGKJ\u003c\/strong\u003e is a thermal MEMS mass flowmeter for gas with G3\/8 thread connection and stainless steel or aluminium body. It is particularly suited to clean, relatively dry gases up to 200 slpm; it is calibrated for one gas chosen in the order code.\u003c\/p\u003e\n\u003cp\u003eThermal MEMS chip as a solid-state sensing element without thin membrane; the mass flow is measured directly, no temperature or pressure compensation is needed. Full scales \u003cstrong\u003e20, 50, 100 or 200 slpm\u003c\/strong\u003e. Accuracy \u003cstrong\u003e± 1.5 % F.S.\u003c\/strong\u003e, response time 20 ms. Outputs \u003cstrong\u003e1 … 5 V or 4 … 20 mA\u003c\/strong\u003e in a three-wire circuit and digital \u003cstrong\u003eI²C\u003c\/strong\u003e, this series has no RS485. Supply \u003cstrong\u003e8 … 24 V DC, 50 mA\u003c\/strong\u003e. Connection via five leads: SCL, GND, Vin, Vout, SDA. Display module optional in the order code. Calibration with air at 0 °C and 101.325 kPa.\u003c\/p\u003e\n\u003cp\u003eBody of stainless steel or aluminium alloy, selected in the order code. Process connection G3\/8, working pressure 0.8 MPa maximum. Medium temperature -10 … +65 °C, ambient temperature -25 … +85 °C, humidity 0 … 100 % RH. Protection grade IP40. Explosion protection is not documented. A declaration of conformity is not documented in the datasheet. Before sizing, note: flow range, maximum pressure, process connection and response time are marked customizable or optional, no standard version is stated. The reference state is given twice and differently, 0 °C and 20 °C at 101.325 kPa. For oxygen and hydrogen there is no statement on suitability or ignition protection.\u003c\/p\u003e\n\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDirect mass flow measurement without temperature or pressure compensation\u003c\/li\u003e\n\u003cli\u003eSolid-state sensor without membrane, resists clogging and pressure shock\u003c\/li\u003e\n\u003cli\u003eWithstands condensation, humidity 0 … 100 % RH\u003c\/li\u003e\n\u003cli\u003eResponse time 20 ms\u003c\/li\u003e\n\u003cli\u003eAnalogue 1 … 5 V or 4 … 20 mA, digital I²C\u003c\/li\u003e\n\u003cli\u003eThread connection G3\/8, stainless steel or aluminium\u003c\/li\u003e\n\u003cli\u003eShock resistant up to 100 g\u003c\/li\u003e\n\u003cli\u003eDisplay module optional\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453627736390,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QGKJ_produkt.webp?v=1790331873"},{"product_id":"qgkk-thermischer-gasdurchflusssensor-led-anzeige","title":"QGKK thermal gas flow sensor, LED display","description":"\u003cp\u003eThe \u003cstrong\u003eQGKK\u003c\/strong\u003e is a thermal flow sensor for gas with a four-digit LED display that turns by 180° and a PNP or NPN switch output. It is particularly suited to dry air and nitrogen at flows from 5 to 2000 L\/min, also under vacuum down to -0.09 MPa.\u003c\/p\u003e\n\u003cp\u003eThermal mass flow measurement, the gas stream carries heat away from the heated sensor, one flow direction. Seven sizes \u003cstrong\u003e5, 10, 50, 100, 200, 1000 and 2000 L\/min\u003c\/strong\u003e. Display and analogue accuracy \u003cstrong\u003e± 3 % F.S. ± 1 digit\u003c\/strong\u003e, repeatability ± 3 % F.S. ± 1 digit. Response time ≤ 100 ms on the analogue output, 800 ms on the switch, selectable 50 … 1500 ms. Outputs: \u003cstrong\u003eswitch output PNP or NPN\u003c\/strong\u003e, short-circuit protected, with hysteresis, window and pulse modes up to 150 Hz, plus \u003cstrong\u003e1 … 5 V or 4 … 20 mA\u003c\/strong\u003e, alternatively \u003cstrong\u003eRS485\u003c\/strong\u003e. Supply \u003cstrong\u003e12 … 24 V DC ± 10 %\u003c\/strong\u003e, ≤ 50 mA without load. Connection via four-pin plug, cable Ø 4 mm.\u003c\/p\u003e\n\u003cp\u003eProcess connection push-in Ø 6 or Ø 8 mm, Rc1\/8, G1\/8, Rc1\/4, G1\/4, Rc1\/2, G1\/2, Rc3\/4 or G3\/4 by size. Working pressure -0.09 … 0.8 MPa, pressure resistance 1 MPa. Medium and ambient temperature 0 … +50 °C, humidity 35 … 85 % RH without dew. Protection grade IP40. Materials of body, valve and bracket are not stated. The EMC standards IEC 61000-6-2 and IEC 61000-6-4 are named; a declaration of conformity is not documented in the datasheet. Before sizing, note: the parameter table gives 12 … 24 V DC, all three wiring diagrams 12 … 30 V DC. A footnote on RS485 is missing from the datasheet, its content is unknown.\u003c\/p\u003e\n\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFour-digit LED display, turns by 180°\u003c\/li\u003e\n\u003cli\u003eFor pressure and vacuum, -0.09 … 0.8 MPa\u003c\/li\u003e\n\u003cli\u003eSeven sizes from 5 to 2000 L\/min\u003c\/li\u003e\n\u003cli\u003ePush-in fitting Ø 6 or Ø 8 mm or thread\u003c\/li\u003e\n\u003cli\u003eSwitch output PNP or NPN, short-circuit protected\u003c\/li\u003e\n\u003cli\u003eAnalogue 1 … 5 V or 4 … 20 mA, alternatively RS485\u003c\/li\u003e\n\u003cli\u003eSwitch response selectable from 50 to 1500 ms\u003c\/li\u003e\n\u003cli\u003eEMC to IEC 61000-6-2 and IEC 61000-6-4\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453627769158,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QGKK_produkt.webp?v=1790331873"},{"product_id":"qgkl-thermischer-massedurchflussmesser-edelstahl","title":"QGKL thermal gas mass flowmeter, stainless steel","description":"\u003cp\u003eThe \u003cstrong\u003eQGKL\u003c\/strong\u003e is a thermal mass flowmeter for gas in stainless steel with colour LCD and thread connection for nominal sizes DN15 … DN50. It is particularly suited to nitrogen and air, oxygen or hydrogen, as the datasheet gives a separate flow range for each of these gases.\u003c\/p\u003e\n\u003cp\u003eThermal diffusion principle with a heated and an unheated resistance thermometer. Flow range \u003cstrong\u003e5 … 705 m³\/h\u003c\/strong\u003e by size and gas, for oxygen about half, for hydrogen less than a tenth of the air range. Dead band ≤ 0.1 m\/s. Accuracy \u003cstrong\u003e≤ 1.5 %\u003c\/strong\u003e, no reference stated, response time 1 s, adjustable. Outputs by version: \u003cstrong\u003etwo switch outputs\u003c\/strong\u003e, PNP, NPN on request, with linear pulse 100 Hz, plus \u003cstrong\u003e4 … 20 mA or 1 … 5 V\u003c\/strong\u003e, alternatively \u003cstrong\u003eRS485\u003c\/strong\u003e. Supply \u003cstrong\u003e18 … 30 V DC\u003c\/strong\u003e. Connection via M12 plug, colour LCD on the device.\u003c\/p\u003e\n\u003cp\u003eBody of stainless steel 304, stainless steel 316 as an option and intended for hydrogen, display housing of engineering plastic. Process connection G1\/2 … G2 as external or internal thread, working pressure ≤ 2.5 MPa with external thread and ≤ 4.0 MPa with internal thread. Medium temperature -20 … +80 °C, protection grade IP65. Explosion protection is not documented. A declaration of conformity is not documented in the datasheet. Before sizing, note: the technical data give 18 … 30 V DC, both wiring diagrams 12 … 30 V DC. The velocity of up to 100 m\/s does not match the range table in m³\/h; the table applies. There is no moulded cable socket for the four-core RS485 version.\u003c\/p\u003e\n\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSeparate ranges for nitrogen and air, oxygen and hydrogen\u003c\/li\u003e\n\u003cli\u003eStainless steel 304, optionally 316\u003c\/li\u003e\n\u003cli\u003eUp to 4.0 MPa with internal thread\u003c\/li\u003e\n\u003cli\u003eProtection grade IP65\u003c\/li\u003e\n\u003cli\u003eColour LCD with flow, velocity and total\u003c\/li\u003e\n\u003cli\u003eTwo switch outputs plus analogue output or RS485\u003c\/li\u003e\n\u003cli\u003eDead band ≤ 0.1 m\/s\u003c\/li\u003e\n\u003cli\u003eNominal sizes DN15 … DN50, thread G1\/2 … G2\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453627801926,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QGKL_produkt.webp?v=1790331873"},{"product_id":"qgkm-messumformer-fur-luftgeschwindigkeit","title":"QGKM air velocity transmitter","description":"\u003cp\u003eThe \u003cstrong\u003eQGKM\u003c\/strong\u003e is an air velocity transmitter with probe; it measures a flow velocity in m\/s, not a flow. It is particularly suited to measuring air velocity, for example in ducts; a volume flow additionally needs the duct cross-section and a profile factor, which the datasheet does not give.\u003c\/p\u003e\n\u003cp\u003ePer datasheet heat dissipation or pitot tube, both principles are named in one sentence. Velocity range \u003cstrong\u003e1, 2, 5, 10, 20, 30, 40 or 50 m\/s\u003c\/strong\u003e. Accuracy \u003cstrong\u003e± 0.2 m\/s + 3 % of reading\u003c\/strong\u003e, resolution 0.05 m\/s, digital linearisation and temperature compensation. Output \u003cstrong\u003e0 … 10 V or 4 … 20 mA\u003c\/strong\u003e, 0 … 5 V and RS485 as a special. Supply \u003cstrong\u003e13 … 24 V AC or DC\u003c\/strong\u003e, 50 Hz. Connection via three screw terminals for 1.5 mm². Probe length \u003cstrong\u003e220 mm\u003c\/strong\u003e standard.\u003c\/p\u003e\n\u003cp\u003eHousing material not stated, described only as high-temperature and corrosion resistant. Probe length 220 mm, below 1500 mm to order, up to 5000 mm as a special length. Ambient temperature -5 … +70 °C, humidity 0 … 90 % RH without condensation. Protection grade, dimensions, mounting, display and wiring diagram are not documented. A declaration of conformity is not documented in the datasheet. Before sizing, note: which measuring principle the device uses, heat dissipation or pitot tube, is not stated. The order code contains only the range, no field for output, probe length or connection. The supply is given as alternating and direct voltage in one entry.\u003c\/p\u003e\n\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEight ranges from 1 to 50 m\/s\u003c\/li\u003e\n\u003cli\u003eAccuracy ± 0.2 m\/s + 3 % of reading\u003c\/li\u003e\n\u003cli\u003eResolution 0.05 m\/s\u003c\/li\u003e\n\u003cli\u003eOutput 0 … 10 V or 4 … 20 mA\u003c\/li\u003e\n\u003cli\u003eDigital linearisation and temperature compensation\u003c\/li\u003e\n\u003cli\u003eProbe 220 mm standard, special lengths up to 5000 mm\u003c\/li\u003e\n\u003cli\u003eSupply 13 … 24 V AC or DC\u003c\/li\u003e\n\u003cli\u003eCable length up to 300 m with 1.5 mm²\u003c\/li\u003e\n\u003cli\u003eAmbient temperature -5 … +70 °C\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453631963462,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QGKM_produkt.webp?v=1790331873"},{"product_id":"qgkn-thermischer-gasdurchflusssensor-farbdisplay-ip65","title":"QGKN thermal gas flow sensor, colour display, IP65","description":"\u003cp\u003eThe \u003cstrong\u003eQGKN\u003c\/strong\u003e is a thermal flow sensor for gas with a colour display that turns by 180°, protection grade IP65 and M8 × 1 plug connection. It is particularly suited to dry air and nitrogen at flows from 5 to 6000 L\/min where protection grade IP65 is required.\u003c\/p\u003e\n\u003cp\u003eThermal mass flow measurement, the gas stream carries heat away from the heated sensor, one flow direction. Five sizes \u003cstrong\u003e5 … 500, 10 … 1000, 20 … 2000, 30 … 3000 and 60 … 6000 L\/min\u003c\/strong\u003e. Display accuracy \u003cstrong\u003e± 3 % F.S. ± 1 digit\u003c\/strong\u003e, analogue accuracy ± 5 % F.S., repeatability \u003cstrong\u003e± 1 % F.S. ± 1 digit\u003c\/strong\u003e. Response time ≤ 100 ms on the analogue output. Outputs by version: \u003cstrong\u003etwo switch outputs\u003c\/strong\u003e, PNP, NPN on request, short-circuit protected, cumulative pulse, \u003cstrong\u003e4 … 20 mA or 1 … 5 V\u003c\/strong\u003e, alternatively \u003cstrong\u003eRS485\u003c\/strong\u003e. Supply \u003cstrong\u003e12 … 24 V DC ± 10 %\u003c\/strong\u003e, ≤ 50 mA. Connection \u003cstrong\u003eM8 × 1\u003c\/strong\u003e, four-pin.\u003c\/p\u003e\n\u003cp\u003ePlastic housing, process connection Rc1\/2, G1\/2, G3\/4, G1 or G1-1\/2 by size. Working pressure 0 … 1.0 MPa, pressure resistance 1.5 MPa. Medium and ambient temperature 0 … +50 °C without dew or freezing. Protection grade IP65. The EMC standards IEC 61000-6-2 and IEC 61000-6-4 are named; a declaration of conformity is not documented in the datasheet. Before sizing, note: IO-Link appears only in the order code and the wiring tables, no IO-Link version and no IODD file are documented. The parameter table gives 12 … 24 V DC, the wiring diagram 18 … 28 V DC. The order code distinguishes only G and Rc threads, the thread size has to be stated with the order.\u003c\/p\u003e\n\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eProtection grade IP65\u003c\/li\u003e\n\u003cli\u003eColour display, turns by 180°\u003c\/li\u003e\n\u003cli\u003eFive sizes from 5 to 6000 L\/min\u003c\/li\u003e\n\u003cli\u003eRepeatability ± 1 % F.S. ± 1 digit\u003c\/li\u003e\n\u003cli\u003eTwo switch outputs with window and cumulative modes\u003c\/li\u003e\n\u003cli\u003eAnalogue 1 … 5 V or 4 … 20 mA, alternatively RS485\u003c\/li\u003e\n\u003cli\u003eCumulative pulse 5 … 60 L per pulse\u003c\/li\u003e\n\u003cli\u003eM8 × 1 plug connection, four-pin\u003c\/li\u003e\n\u003cli\u003eEMC to IEC 61000-6-2 and IEC 61000-6-4\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453631996230,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QGKN_produkt.webp?v=1790331873"},{"product_id":"qwka-vortex-durchflussmesser-dampf-gas-flussigkeit","title":"QWKA vortex flowmeter, steam, gas and liquid","description":"\u003cp\u003eThe \u003cstrong\u003eQWKA\u003c\/strong\u003e is a vortex flowmeter based on the Kármán vortex street, with no moving part in the meter tube. It is particularly suited to saturated steam, superheated steam, gases and viscous liquids at medium temperatures up to +250 °C, in the high-temperature version up to +350 °C.\u003c\/p\u003e\n\u003cp\u003eVortices shed behind a bluff body, their frequency is proportional to the flow velocity. Flow ranges per nominal size and medium per range table, giving a turndown of about 11:1 to 23:1. Accuracy \u003cstrong\u003e± 1.0 %\u003c\/strong\u003e for all three media, repeatability \u003cstrong\u003e0.3 % (R)\u003c\/strong\u003e, the reference is not explained. Output \u003cstrong\u003ethree-wire voltage pulse\u003c\/strong\u003e (code F) or \u003cstrong\u003etwo-wire 4 … 20 mA with display\u003c\/strong\u003e (code A). Supply \u003cstrong\u003e+24 V DC\u003c\/strong\u003e. Connection \u003cstrong\u003eflange or wafer (clamp) type\u003c\/strong\u003e, nominal sizes \u003cstrong\u003eDN25 … DN300\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eBody of stainless steel. Nominal pressure 1.6, 2.5 and 4.0 MPa per parameter block. Medium temperature -40 … +250 °C, high-temperature version +100 … +350 °C (code H). Counter flanges are not supplied, no flange standard is named. The protection grade is not documented. An explosion-proof version is a digit of the order code; gas group, temperature class and certificate are not named. A declaration of conformity is not documented in the datasheet. Before sizing, note: the size range is given three different ways (DN25 … DN300, DN15 … DN300, range table without DN32). The order code offers 2.5 and 4.0 MPa only, not 1.6 MPa. For steam the range table applies to dry saturated steam only.\u003c\/p\u003e\n\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eKármán vortex street, no moving parts\u003c\/li\u003e\n\u003cli\u003eFor saturated steam, superheated steam, gas and liquid\u003c\/li\u003e\n\u003cli\u003eAccuracy ± 1.0 %, repeatability 0.3 %\u003c\/li\u003e\n\u003cli\u003eMedium temperature up to +250 °C, high-temperature version up to +350 °C\u003c\/li\u003e\n\u003cli\u003eFlange or wafer type\u003c\/li\u003e\n\u003cli\u003eNominal sizes DN25 … DN300\u003c\/li\u003e\n\u003cli\u003eTwo-wire 4 … 20 mA with display or pulse output\u003c\/li\u003e\n\u003cli\u003eTemperature and pressure compensation optional\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453632028998,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QWKA_produkt.webp?v=1790331901"},{"product_id":"qtkb-turbinen-durchflussmesser-zweileiter-oder-impuls","title":"QTKB turbine flowmeter, two-wire or pulse","description":"\u003cp\u003eThe \u003cstrong\u003eQTKB\u003c\/strong\u003e is a turbine flowmeter for liquids of low to medium viscosity in nominal sizes from DN 10 to DN 300. It is particularly suited to applications where a two-wire current signal or a pulse is sufficient and the sensor has to take pressures up to 400 bar.\u003c\/p\u003e\u003cp\u003eTurbine principle, nominal sizes \u003cstrong\u003eDN 10 … DN 300\u003c\/strong\u003e with flow rates of \u003cstrong\u003e0.2 … 1800 m³\/h\u003c\/strong\u003e, accuracy \u003cstrong\u003e≤ 1.0 % F.S.\u003c\/strong\u003e, repeatability \u003cstrong\u003e\u0026lt; 0.5 % F.S.\u003c\/strong\u003e, viscosity 1 … 100 cSt. Output \u003cstrong\u003e4 … 20 mA two-wire\u003c\/strong\u003e or pulse, no-load current \u0026lt; 15 mA. Supply \u003cstrong\u003e12 … 30 V DC\u003c\/strong\u003e. Electrical connection via \u003cstrong\u003eDIN 43650-A\u003c\/strong\u003e connector, cable or \u003cstrong\u003eM12 × 1\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eMain body and runner of stainless steel 304, shaft of hard alloy steel. Process connection external thread, internal thread or clamp. Nominal pressure PN 6.3 · 16 · 25 · 40 MPa up to DN32, 2.5 MPa up to DN100, 1.6 MPa up to DN300; max. pressure loss 0.05 MPa at DN10 down to 0.025 MPa up to DN300; sensor pressure ratings 60 · 100 · 250 · 400 bar. Medium temperature -20 … +90 °C, ambient -20 … +70 °C. Protection \u003cstrong\u003eIP65\u003c\/strong\u003e with DIN 43650-A, \u003cstrong\u003eIP67\u003c\/strong\u003e with cable or M12 × 1. A declaration of conformity is not documented in the datasheet. Before sizing, note: the maximum flow of 222 m³\/h at DN100 breaks the series of its neighbours 100 and 250 and has to be settled with the enquiry.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eAccuracy ≤ 1.0 % F.S.\u003c\/li\u003e\u003cli\u003eRepeatability \u0026lt; 0.5 % F.S.\u003c\/li\u003e\u003cli\u003eSensor pressure ratings up to 400 bar\u003c\/li\u003e\u003cli\u003eOutput 4 … 20 mA two-wire or pulse\u003c\/li\u003e\u003cli\u003eMain body and runner of stainless steel 304\u003c\/li\u003e\u003cli\u003eConnection DIN 43650-A, cable or M12 × 1\u003c\/li\u003e\u003cli\u003eProtection up to IP67\u003c\/li\u003e\u003cli\u003eThread or clamp connection\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453632061766,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QTKB_produkt.webp?v=1790331901"},{"product_id":"qtkc-turbinen-durchflussmesser-mit-feldmessumformer","title":"QTKC turbine flowmeter with field transmitter","description":"\u003cp\u003eThe \u003cstrong\u003eQTKC\u003c\/strong\u003e is a turbine flowmeter with a field transmitter in a round field housing with two cable entries. It is particularly suited to low-viscosity liquids such as water, diesel or gasoline where the reading is to be taken at the device; a battery-powered version is available.\u003c\/p\u003e\u003cp\u003eTurbine principle, measuring range \u003cstrong\u003eDN 10 … DN 300\u003c\/strong\u003e or \u003cstrong\u003e0.2 … 1800 m³\/h\u003c\/strong\u003e. Accuracy, repeatability and supply voltage are not documented in the datasheet. Output versions: pulse (F), \u003cstrong\u003e4 … 20 mA\u003c\/strong\u003e (A), 4 … 20 mA with pulse and switching output (S), additionally with quantity and communication output (R), and battery operation without output signal (C, lithium battery, replaced yearly). Display via an \u003cstrong\u003eLED display unit\u003c\/strong\u003e with four keys (F, A) or an \u003cstrong\u003eLCD display unit\u003c\/strong\u003e (S, R, C).\u003c\/p\u003e\u003cp\u003ePressure resistance 16 bar or 250 bar by order code; Nominal pressure PN 6.3 · 16 · 25 · 40 MPa up to DN32, 2.5 MPa up to DN100, 1.6 MPa up to DN300; max. pressure loss 0.05 MPa at DN10 down to 0.025 MPa up to DN300. Medium temperature ≤ 100 °C standard, ≤ 130 °C type H, ≤ 180 °C type H1. Wetted materials, protection grade and ambient temperature are not documented. The amplifier is listed in normal and flameproof versions; no Ex marking is stated. A declaration of conformity is not documented in the datasheet. Before sizing, note: the sheet contains no table of technical parameters; the missing figures must be clarified with the enquiry. The maximum flow of 222 m³\/h at DN100 has to be settled with the enquiry.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eField transmitter in a round field housing\u003c\/li\u003e\u003cli\u003eLED or LCD display unit\u003c\/li\u003e\u003cli\u003ePulse, 4 … 20 mA, switching and communication outputs\u003c\/li\u003e\u003cli\u003eBattery version with lithium battery\u003c\/li\u003e\u003cli\u003eNominal sizes DN 10 … DN 300\u003c\/li\u003e\u003cli\u003eMedium temperature up to 180 °C in version H1\u003c\/li\u003e\u003cli\u003eSensor also in wear-resisting hard alloy\u003c\/li\u003e\u003cli\u003ePressure resistance 16 or 250 bar\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453638811974,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QTKC_produkt.webp?v=1790331901"},{"product_id":"qtkd-turbinen-durchflussmesser-mit-temperaturmessung","title":"QTKD turbine flow and temperature sensor","description":"\u003cp\u003eThe \u003cstrong\u003eQTKD\u003c\/strong\u003e is a turbine flowmeter with integrated temperature measurement for nominal sizes from DN 6 to DN 50. It is particularly suited to oil or water where flow and temperature are to be displayed, monitored and output together.\u003c\/p\u003e\u003cp\u003eTurbine principle, measuring range \u003cstrong\u003e0.7 … 660 L\/min\u003c\/strong\u003e (DN 6 … DN 50), accuracy \u003cstrong\u003e≤ ±1.0 % linear\u003c\/strong\u003e, switching and analog accuracy each ≤ ±0.5 % of the range, calibrated with lubricating oil 46# at 25 °C. Outputs: switch PNP or NPN, \u003cstrong\u003eIO-Link\u003c\/strong\u003e, \u003cstrong\u003eRS485\u003c\/strong\u003e, analog \u003cstrong\u003e4 … 20 mA, 1 … 5 V or 0 … 10 V\u003c\/strong\u003e for flow and temperature, pulse and frequency; switching load \u0026lt; 200 mA. Supply \u003cstrong\u003e16 … 30 V DC\u003c\/strong\u003e, connection \u003cstrong\u003eM12 × 1\u003c\/strong\u003e, 5-pin or 4-pin with RS485. Response time 0.1 … 5.0 s, settable.\u003c\/p\u003e\u003cp\u003eShell of stainless steel 304L or, by order code, in the 'alumina' version, turbine rotor of duplex steel, sliding bearing, display head of engineering plastics. Pressure rating 400 bar in the internal thread version, process connection G 1\/2\" … 2\". Medium temperature -20 … +80 °C, -30 … +180 °C in the split high-temperature version; ambient -20 … +75 °C; protection \u003cstrong\u003eIP67\u003c\/strong\u003e. A declaration of conformity is not documented in the datasheet. Before sizing, note: the analog output starts at 0 L\/min, not at the start of the measuring range. In the RS485 version OUT3 is omitted and the connector is 4-pin.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eFlow and temperature on one colour display\u003c\/li\u003e\u003cli\u003eAccuracy ≤ ±1.0 % linear\u003c\/li\u003e\u003cli\u003eAnalog 4 … 20 mA, 1 … 5 V or 0 … 10 V per variable\u003c\/li\u003e\u003cli\u003eIO-Link or RS485\u003c\/li\u003e\u003cli\u003ePressure rating 400 bar\u003c\/li\u003e\u003cli\u003eAll parameters set with three keys\u003c\/li\u003e\u003cli\u003eTwo signal lamps for the switching outputs\u003c\/li\u003e\u003cli\u003eHigh-temperature version up to +180 °C\u003c\/li\u003e\u003cli\u003eProtection IP67\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453638844742,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QTKD_produkt.webp?v=1790331901"},{"product_id":"qtke-turbinen-durchflussmesser-mit-led-anzeige","title":"QTKE turbine flowmeter with LED display","description":"\u003cp\u003eThe \u003cstrong\u003eQTKE\u003c\/strong\u003e is an electronic turbine flowmeter with a four-digit LED display for nominal sizes from DN 10 to DN 300. It is particularly suited to oil or water with medium temperatures up to +120 °C where, in version A2, the temperature is to be output alongside the flow.\u003c\/p\u003e\u003cp\u003eTurbine principle, measuring range \u003cstrong\u003eDN 10 … DN 300\u003c\/strong\u003e with flow rates of \u003cstrong\u003e0.06 … 1800 m³\/h\u003c\/strong\u003e, accuracy \u003cstrong\u003e≤ ±1.0 % of the range\u003c\/strong\u003e, switching and analog accuracy each ≤ ±0.5 % of the range, response time 0.1 … 5 s. Flow outputs: switch, analog and pulse, \u003cstrong\u003eIO-Link\u003c\/strong\u003e, \u003cstrong\u003eRS485\u003c\/strong\u003e; temperature: switch, analog and RS485 with code A2 only. Supply \u003cstrong\u003e12 … 30 V DC\u003c\/strong\u003e, power consumption \u0026lt; 60 mA, switch load \u0026lt; 200 mA at 24 V DC, connection \u003cstrong\u003eM12 × 1\u003c\/strong\u003e. Display range 0.000 … 9999.\u003c\/p\u003e\u003cp\u003eHousing of stainless steel 304, display head of engineering plastic, turbine rotor of duplex steel, bearing of graphite up to DN32 and tungsten steel from DN40. Nominal pressure PN 6.3 · 16 · 25 · 40 MPa up to DN32, 2.5 MPa up to DN100, 1.6 MPa up to DN300; max. pressure loss 0.05 MPa at DN10 down to 0.025 MPa up to DN300. Medium temperature -30 … +120 °C, high-temperature type on request; ambient -20 … +80 °C; protection \u003cstrong\u003eIP67\u003c\/strong\u003e. A declaration of conformity is not documented in the datasheet. Before sizing, note: the coil-type minimum flows at DN12 and DN15 run backwards and have to be settled with the enquiry. The maximum flow of 222 m³\/h at DN100 breaks the series and also has to be settled with the enquiry.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eFour-digit LED display\u003c\/li\u003e\u003cli\u003eAccuracy ≤ ±1.0 % of the range\u003c\/li\u003e\u003cli\u003eIO-Link and RS485\u003c\/li\u003e\u003cli\u003eTemperature output in version A2\u003c\/li\u003e\u003cli\u003eMedium temperature up to +120 °C\u003c\/li\u003e\u003cli\u003eBearing of graphite or tungsten steel by size\u003c\/li\u003e\u003cli\u003eReverse polarity, overload and short-circuit protection\u003c\/li\u003e\u003cli\u003eProtection IP67\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453638877510,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QTKE_produkt.webp?v=1790331901"},{"product_id":"qzka-zahnrad-durchflussmesser-mit-farbdisplay","title":"QZKA gear flowmeter with colour display","description":"\u003cp\u003eThe \u003cstrong\u003eQZKA\u003c\/strong\u003e is a positive displacement gear flowmeter for small and viscous flows. It is particularly suited to oils, fats, fuels, resins, adhesives, solvents, inks and refrigerants up to a viscosity of 10 000 Pa·s.\u003c\/p\u003e\u003cp\u003eTwo meshing gears displace a fixed volume per revolution, measuring range \u003cstrong\u003e5 mL\/min … 150 L\/min\u003c\/strong\u003e in seven sizes, accuracy \u003cstrong\u003e± 0.5 % of full scale\u003c\/strong\u003e, repeatability \u003cstrong\u003e± 0.2 % of full scale\u003c\/strong\u003e. Version A3: two switches PNP\/NPN and analog \u003cstrong\u003e4 … 20 mA, 1 … 5 V or 0 … 10 V\u003c\/strong\u003e; AR: \u003cstrong\u003eRS485\u003c\/strong\u003e plus analog; SA: analog for flow and temperature, switch, pulse and \u003cstrong\u003eIO-Link\u003c\/strong\u003e. Supply \u003cstrong\u003e12 … 30 V DC\u003c\/strong\u003e, plug \u003cstrong\u003eM12 × 1\u003c\/strong\u003e, five-pin. Colour display with flow, percentage of range and totalized volume, three keys.\u003c\/p\u003e\u003cp\u003eBody of aluminium (40 bar), stainless steel 304 or 316 (100 · 250 · 400 bar) or PP (10 bar); seal FKM up to 200 bar, PTFE above 200 bar or EPDM. Process connection G1\/4 … G1 by size, two mounting threads M5, M6 or M8. Medium temperature -30 … +120 °C, +140 °C with code T (not for aluminium and PP). The protection grade is not documented and the sheet names no CE mark. A declaration of conformity is not documented in the datasheet. Before sizing, note: the pressure statements disagree, and FKM stops at 200 bar although 250 and 400 bar bodies are offered. The accuracy refers to full scale, not to the reading. A filter finer than 100 mesh is required ahead of the meter.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003ePositive displacement, reading independent of density and viscosity\u003c\/li\u003e\u003cli\u003eSeven sizes from 5 mL\/min to 150 L\/min\u003c\/li\u003e\u003cli\u003eRepeatability ± 0.2 % of full scale\u003c\/li\u003e\u003cli\u003eOutputs 4 … 20 mA, PNP\/NPN, pulse, RS485, IO-Link\u003c\/li\u003e\u003cli\u003eColour display with totalizer and three keys\u003c\/li\u003e\u003cli\u003eStainless steel body up to 400 bar\u003c\/li\u003e\u003cli\u003eHigh-temperature option up to +140 °C\u003c\/li\u003e\u003cli\u003eTemperature output in version SA\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453638910278,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QZKA_produkt.webp?v=1790331901"},{"product_id":"qzkb-zahnrad-durchflussmesser-fur-plattenmontage","title":"QZKB plate-mounted gear flowmeter","description":"\u003cp\u003eThe \u003cstrong\u003eQZKB\u003c\/strong\u003e is a gear flowmeter for mounting on a machined plate instead of in a pipe. It is particularly suited to additive fuels, corrosion inhibitors, catalysts, emulsifiers, oils, fats, fragrances, adhesives, solvents, inks and insecticides in systems up to 400 bar.\u003c\/p\u003e\u003cp\u003ePositive displacement with two meshing gears, no straight inlet run needed. Measuring range \u003cstrong\u003e50 mL\/min … 350 L\/min\u003c\/strong\u003e in seven steps, accuracy \u003cstrong\u003e± 0.5 % of full scale\u003c\/strong\u003e, repeatability \u003cstrong\u003e± 0.2 % of full scale\u003c\/strong\u003e. Output A3: two switches PNP or NPN or pulse, OUT3 \u003cstrong\u003e4 … 20 mA, 1 … 5 V or 0 … 10 V\u003c\/strong\u003e; AR: \u003cstrong\u003eRS485\u003c\/strong\u003e plus analog; SA: flow or temperature as switch, pulse, analog or \u003cstrong\u003eIO-Link\u003c\/strong\u003e. Supply \u003cstrong\u003e16 … 30 V DC\u003c\/strong\u003e, plug \u003cstrong\u003eM12 × 1\u003c\/strong\u003e, five-pin. Colour display with instantaneous flow, totalized volume and raw frequency, three keys.\u003c\/p\u003e\u003cp\u003eHousing of stainless steel (grade not named), display housing of stainless steel or engineering plastic, seal FKM. Pressure \u003cstrong\u003e400 bar\u003c\/strong\u003e. Medium temperature -30 … +120 °C, +140 °C with field T of the order code. Plate mounting with two sealing grooves; the 350 L\/min size has a SAE 1¼ inch 6000 PSI flange face. The protection grade is not documented. A declaration of conformity is not documented in the datasheet. Before sizing, note: the supply is given as 16 … 30 V DC in the data block and 12 … 30 V DC in the wiring diagram; design for 16 … 30 V DC until clarified. Without a stated K-factor the pulse output cannot be scaled. The mounting plate is drawn for only four of the seven ranges.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003ePlate mounting without straight inlet run\u003c\/li\u003e\u003cli\u003ePressure up to 400 bar\u003c\/li\u003e\u003cli\u003eSeven ranges from 50 mL\/min to 350 L\/min\u003c\/li\u003e\u003cli\u003eRepeatability ± 0.2 % of full scale\u003c\/li\u003e\u003cli\u003eOutputs 4 … 20 mA, PNP\/NPN, pulse, RS485 or IO-Link\u003c\/li\u003e\u003cli\u003eTemperature output in version SA\u003c\/li\u003e\u003cli\u003eColour display with totalizer and frequency page\u003c\/li\u003e\u003cli\u003eAccuracy stated as unaffected by pressure and flow changes\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453640909126,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QZKB_produkt.webp?v=1790331901"},{"product_id":"qzkd-zahnrad-durchflussmesser-ohne-anzeige","title":"QZKD gear flowmeter without display","description":"\u003cp\u003eThe \u003cstrong\u003eQZKD\u003c\/strong\u003e is a gear flowmeter without display and without keys that puts out a current or a pulse. It is particularly suited to fuels, oils, fats, adhesives, solvents, inks and insecticides where evaluation and totalizing take place outside the device.\u003c\/p\u003e\u003cp\u003ePositive displacement with two meshing gears, no straight inlet run needed. Measuring range \u003cstrong\u003e50 mL\/min … 150 L\/min\u003c\/strong\u003e in seven sizes, one of them 5 … 2000 mL\/min. Accuracy \u003cstrong\u003e± 0.5 % of full scale\u003c\/strong\u003e, repeatability \u003cstrong\u003e± 0.1 % of full scale\u003c\/strong\u003e. Output A: \u003cstrong\u003e4 … 20 mA two-wire\u003c\/strong\u003e in the supply loop; output P: pulse, three-wire. Supply \u003cstrong\u003e16 … 30 V DC\u003c\/strong\u003e per the data block. Connection rectangular connector (factory default) or \u003cstrong\u003eM12 × 1\u003c\/strong\u003e, four-pin.\u003c\/p\u003e\u003cp\u003eBody of aluminium (40 bar), stainless steel 304 or 316 (each 100, 250 or 400 bar) or PP (10 bar), seal FKM or PTFE for corrosive media. Process connection female thread G1\/4 … G1. Medium temperature -30 … +120 °C, high-temperature version on request, not for aluminium and PP. The protection grade is not documented in the text; IP65 and a CE mark are visible only on the rating plate in the product photograph. A declaration of conformity is not documented in the datasheet. Before sizing, note: a PNP\/NPN switching output is named in the data block but cannot be ordered. The rating plate in the photograph reads DC 5 … 24 V, contradicting the data block. The high-temperature limit is given once as 150 °C and once as 140 °C.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003ePositive displacement, no straight inlet run needed\u003c\/li\u003e\u003cli\u003eRepeatability ± 0.1 % of full scale\u003c\/li\u003e\u003cli\u003eOutput 4 … 20 mA two-wire or pulse\u003c\/li\u003e\u003cli\u003eSeven sizes, female thread G1\/4 … G1\u003c\/li\u003e\u003cli\u003eStainless steel body up to 400 bar\u003c\/li\u003e\u003cli\u003eBody of aluminium, stainless steel 304\/316 or PP\u003c\/li\u003e\u003cli\u003ePTFE seal for corrosive media\u003c\/li\u003e\u003cli\u003eRectangular connector or M12 × 1\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453641269574,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QZKD_produkt.webp?v=1790331901"},{"product_id":"qzkf-zahnrad-durchflussmesser-optional-oled-anzeige","title":"QZKF gear flowmeter, optional OLED display","description":"\u003cp\u003eThe \u003cstrong\u003eQZKF\u003c\/strong\u003e is a gear flowmeter for flow rates from 2 to 350 L\/min in six sizes. It is particularly suited to fuels, oils, fats, adhesives, solvents, inks and insecticides and is also available in a flameproof version with a cast housing.\u003c\/p\u003e\u003cp\u003ePositive displacement with two meshing gears, no straight inlet run needed. Measuring range \u003cstrong\u003e2 … 350 L\/min\u003c\/strong\u003e, accuracy \u003cstrong\u003e± 0.5 % of full scale\u003c\/strong\u003e, repeatability \u003cstrong\u003e± 0.1 % of full scale\u003c\/strong\u003e. Outputs PAF\/NAF: switch PNP or NPN, pulse and \u003cstrong\u003e4 … 20 mA\u003c\/strong\u003e together, with \u003cstrong\u003eOLED display\u003c\/strong\u003e; HP\/HA\/MP\/MA: pulse or 4 … 20 mA only. Supply \u003cstrong\u003e16 … 30 V DC\u003c\/strong\u003e per the data block. Connection rectangular connector or \u003cstrong\u003eM12 × 1\u003c\/strong\u003e, five-pin.\u003c\/p\u003e\u003cp\u003eBody of aluminium (150 bar) or stainless steel 304 or 316L (400 bar), seal FKM or PTFE for corrosive media. Process connection female thread G1\/2 … G2 or M42 × 2. Medium temperature as technical parameter -30 … +80 °C, 150 °C on request. The protection grade is not documented. The flameproof version (order field E) has a cast housing with two cable entries; the sheet names no Ex marking. A declaration of conformity is not documented in the datasheet. Before sizing, note: the medium temperature is stated four different ways; only -30 … +80 °C is firm. The 20 … 200 L\/min size is printed with G1\/4, so its thread must be confirmed before ordering. Without a marking the flameproof version cannot be used in a hazardous area.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003ePositive displacement, no straight inlet run needed\u003c\/li\u003e\u003cli\u003eSix sizes up to 350 L\/min\u003c\/li\u003e\u003cli\u003eRepeatability ± 0.1 % of full scale\u003c\/li\u003e\u003cli\u003eSwitch, pulse and 4 … 20 mA output combined\u003c\/li\u003e\u003cli\u003eOLED display in version PAF\/NAF\u003c\/li\u003e\u003cli\u003eStainless steel body up to 400 bar\u003c\/li\u003e\u003cli\u003eFemale thread up to G2 or M42 × 2\u003c\/li\u003e\u003cli\u003ePTFE seal for corrosive media\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453641302342,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QZKF_produkt.webp?v=1790331901"},{"product_id":"qzkh-ovalrad-durchflussmesser-mit-mechanischem-zahlwerk","title":"QZKH oval gear flowmeter with mechanical counter","description":"\u003cp\u003eThe \u003cstrong\u003eQZKH\u003c\/strong\u003e is an oval gear flowmeter with a mechanical counter and flanged connection for nominal sizes from DN10 to DN200. It is particularly suited to measuring points without auxiliary power, since it counts without a supply; an electrical output is available as an accessory.\u003c\/p\u003e\u003cp\u003ePositive displacement, two oval gears drive the counter through a gear train, no straight inlet run needed. Flow range from 0.03 at DN10 to 340 at DN200, given without a unit in the sheet. Accuracy class \u003cstrong\u003e0.5 or 0.2\u003c\/strong\u003e, depending on viscosity; repeatability is not documented. Reading on the \u003cstrong\u003emechanical counter\u003c\/strong\u003e or an electronic counter. Optional photoelectric \u003cstrong\u003epulse transmitter\u003c\/strong\u003e, three-wire, 12 or 24 V, or a \u003cstrong\u003e4 … 20 mA\u003c\/strong\u003e transmitter without stated supply, load or accuracy.\u003c\/p\u003e\u003cp\u003eFive material versions: cast iron, cast steel, cast iron with aluminium-alloy gears, stainless steel throughout, and aluminium alloy as lightweight version; nominal pressure 1.6 · 2.5 · 4.0 · 6.3 MPa by model. Working temperature -10 … +60 °C, ambient -40 … +50 °C. The protection grade is not documented. Explosion protection per the sheet 'Ex d IIB T4', without certificate, group or category. A declaration of conformity is not documented in the datasheet. Before sizing, note: the flow tables carry no unit; only the questionnaire speaks of m³\/h. A medium temperature is stated nowhere and the statements on the high-temperature version contradict each other. The nominal pressure depends on model and size and departs from the steps with 4.1 MPa for cast steel at DN80 … DN100.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMechanical counter, works without power\u003c\/li\u003e\u003cli\u003eFlanged connection DN10 … DN200\u003c\/li\u003e\u003cli\u003eAccuracy class 0.5 or 0.2\u003c\/li\u003e\u003cli\u003eFive material versions from cast iron to stainless steel\u003c\/li\u003e\u003cli\u003eNo straight inlet run needed\u003c\/li\u003e\u003cli\u003ePulse or 4 … 20 mA output as accessory\u003c\/li\u003e\u003cli\u003eHeating jacket for media that solidify\u003c\/li\u003e\u003cli\u003eAmbient temperature -40 … +50 °C\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453641335110,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QZKH_produkt.webp?v=1790331901"},{"product_id":"qfka-flugelrad-durchflussmesser-bis-vier-schaltpunkte","title":"QFKA impeller flow sensor, up to four switch points","description":"\u003cp\u003eThe \u003cstrong\u003eQFKA\u003c\/strong\u003e is an impeller flow sensor with temperature measurement for nominal sizes from DN10 to DN32. It is particularly suited to monitoring tasks where up to four switch points plus flow and temperature as 4 … 20 mA are required.\u003c\/p\u003e\u003cp\u003eImpeller principle, flow velocity \u003cstrong\u003e0.15 … 6 m\/s\u003c\/strong\u003e, flow rate \u003cstrong\u003e3 … 250 L\/min\u003c\/strong\u003e by size, linear accuracy \u003cstrong\u003e± 1.0 % F.S.\u003c\/strong\u003e, repeatability ± 5 % F.S., temperature range 0 … 100 °C with ± 1.5 °C. Outputs: two or four switch points PNP or NPN with freely settable upper and lower alarm value, \u003cstrong\u003e2 × 4 … 20 mA\u003c\/strong\u003e for flow and temperature, pulse output for flow. Supply \u003cstrong\u003e16 … 30 V DC\u003c\/strong\u003e, connection \u003cstrong\u003eM12 × 1\u003c\/strong\u003e, 8-pin with analog output, otherwise 5-pin. LCD with three keys.\u003c\/p\u003e\u003cp\u003eSensor body of POM, aluminium or stainless steel, O-ring FPM or EPDM, impeller of PP, bearing and shaft of ZrO2 ceramic, titanium alloy or Hastelloy C. Pressure for the POM body 14 bar at 25 °C and 1.7 bar at 100 °C. Process connection G or Rc thread, internal or external, 1\/2\" … 1-1\/4\". Medium temperature 0 … 100 °C, protection \u003cstrong\u003eIP67\u003c\/strong\u003e. A declaration of conformity is not documented in the datasheet. Before sizing, note: the technical data give DC 5 … 24 V, all wiring diagrams 16 … 30 V DC. No pressure is documented for the aluminium and stainless steel bodies. At ± 5 % FS the repeatability is five times the linearity error; the value has to be settled with the enquiry.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eFlow and temperature measurement in one device\u003c\/li\u003e\u003cli\u003eUp to four switch points PNP or NPN\u003c\/li\u003e\u003cli\u003eTwo analog outputs 4 … 20 mA\u003c\/li\u003e\u003cli\u003eAlarm values freely settable on site\u003c\/li\u003e\u003cli\u003eLinear accuracy ± 1.0 % F.S.\u003c\/li\u003e\u003cli\u003eSensor body of POM, aluminium or stainless steel\u003c\/li\u003e\u003cli\u003eBearing and shaft of ZrO2 ceramic, titanium or Hastelloy C\u003c\/li\u003e\u003cli\u003eProtection IP67\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453643759942,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QFKA_produkt.webp?v=1790331840"},{"product_id":"qfkb-flugelrad-durchflussmesser-mit-farbdisplay","title":"QFKB impeller flowmeter with colour display","description":"\u003cp\u003eThe \u003cstrong\u003eQFKB\u003c\/strong\u003e is an impeller flowmeter with a display head and colour display for nominal sizes from DN10 to DN32. It is particularly suited to applications where flow and temperature are to be read at the device and transmitted via IO-Link or RS485.\u003c\/p\u003e\u003cp\u003eImpeller principle, flow velocity \u003cstrong\u003e0.15 … 6 m\/s\u003c\/strong\u003e, flow rate \u003cstrong\u003e3 … 250 L\/min\u003c\/strong\u003e by size, linear accuracy \u003cstrong\u003e± 1.0 % F.S.\u003c\/strong\u003e, repeatability ± 5 % F.S., temperature 0 … 100 °C with ± 1.5 °C. Outputs: switch PNP or NPN for flow and temperature, analog \u003cstrong\u003e4 … 20 mA, 1 … 5 V or 0 … 10 V\u003c\/strong\u003e, pulse, \u003cstrong\u003eIO-Link\u003c\/strong\u003e and \u003cstrong\u003eRS485\u003c\/strong\u003e. Supply \u003cstrong\u003e12 … 30 V DC\u003c\/strong\u003e, connection \u003cstrong\u003eM12 × 1\u003c\/strong\u003e, 5-pin. The colour display shows instantaneous flow, percentage of range and totalized flow and can be turned by 180°.\u003c\/p\u003e\u003cp\u003eHead of stainless steel with plastic display window, body of POM, aluminium or stainless steel, O-ring FPM or EPDM, impeller of PP, bearing and shaft of ZrO2 ceramic, titanium alloy or Hastelloy C. Pressure POM 14 bar at 25 °C and 1.7 bar at 100 °C, aluminium 25 bar. Process connection G or Rc thread, internal or external, 1\/2\" … 1-1\/4\". Medium temperature 0 … 100 °C, protection \u003cstrong\u003eIP67\u003c\/strong\u003e. A declaration of conformity is not documented in the datasheet. Before sizing, note: the technical data give DC 5 … 24 V, the wiring diagram 12 … 30 V DC. No pressure is documented for the stainless steel body. IO-Link lacks version and IODD, RS485 lacks protocol, baud rate and register map.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eColour display, turnable by 180°\u003c\/li\u003e\u003cli\u003eIO-Link and RS485\u003c\/li\u003e\u003cli\u003eAnalog 4 … 20 mA, 1 … 5 V or 0 … 10 V\u003c\/li\u003e\u003cli\u003eFlow and temperature as switch or analog signal\u003c\/li\u003e\u003cli\u003eTotalized flow and original frequency on the second page\u003c\/li\u003e\u003cli\u003eOperation with three keys\u003c\/li\u003e\u003cli\u003eBody of POM, aluminium or stainless steel\u003c\/li\u003e\u003cli\u003eProtection IP67\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453644710214,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QFKB_produkt.webp?v=1790331840"},{"product_id":"qfkd-flugelrad-durchflussmesser-edelstahl","title":"QFKD impeller flowmeter, stainless steel","description":"\u003cp\u003eThe \u003cstrong\u003eQFKD\u003c\/strong\u003e is an impeller flowmeter with a stainless steel housing for nominal sizes from DN12 to DN300. It is particularly suited to slurry, water, diesel and petrol, i.e. media of high and low viscosity, with thread, flange or clamp connection.\u003c\/p\u003e\u003cp\u003eImpeller principle, flow rate \u003cstrong\u003e0.4 … 1800 m³\/h\u003c\/strong\u003e by size, accuracy \u003cstrong\u003e≤ ± 2 % of the range\u003c\/strong\u003e, switching and analog accuracy each ≤ ± 0.5 % of the range, response time \u0026lt; 10 ms. Output by order code: switch, \u003cstrong\u003e4 … 20 mA\u003c\/strong\u003e or pulse, output current \u0026lt; 500 mA, protected against reverse polarity, overload and short circuit. Supply \u003cstrong\u003e12 … 30 V DC\u003c\/strong\u003e, connection \u003cstrong\u003eM12 × 1\u003c\/strong\u003e, 5-pin. \u003cstrong\u003eLCD\u003c\/strong\u003e with six-digit totalized reading 000000 … 999999, switch lamps S1 and S2, two keys and a set key.\u003c\/p\u003e\u003cp\u003eHousing of stainless steel 304, impeller of duplex stainless steel (grade not named). Nominal pressure DN12 … DN32 6.3 · 16 · 25 · 40 MPa, DN40 … DN100 2.5 MPa, from DN125 1.6 MPa. Process connection external or internal thread up to DN50, flange from DN15, sanitary clamp up to DN100. Medium temperature -20 … +85 °C, ambient -20 … +80 °C, protection \u003cstrong\u003eIP67\u003c\/strong\u003e. A declaration of conformity is not documented in the datasheet. Before sizing, note: the order code lists only one supply, DC 24 V ± 20 %, i.e. 19.2 … 28.8 V. DN300 is in the range table but has no order code. The 0.035 MPa and 0.025 MPa given as maximum pressure do not fit a maximum pressure and must be clarified with the enquiry.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eHousing of stainless steel 304\u003c\/li\u003e\u003cli\u003eThread, flange or clamp connection\u003c\/li\u003e\u003cli\u003eSix-digit totalized reading\u003c\/li\u003e\u003cli\u003eResponse time \u0026lt; 10 ms\u003c\/li\u003e\u003cli\u003eSwitch, analog or pulse output\u003c\/li\u003e\u003cli\u003eReverse polarity, overload and short-circuit protection\u003c\/li\u003e\u003cli\u003eFor media of high and low viscosity\u003c\/li\u003e\u003cli\u003eProtection IP67\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453644742982,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QFKD_produkt.webp?v=1790331840"},{"product_id":"qfke-flugelrad-einstecksensor","title":"QFKE insertion impeller flow sensor","description":"\u003cp\u003eThe \u003cstrong\u003eQFKE\u003c\/strong\u003e is an insertion impeller flow sensor that is fitted into the pipe through a welding socket. It is particularly suited to pipes from DN25 to DN600, since one device covers all these sizes and no size has to be chosen.\u003c\/p\u003e\u003cp\u003eImpeller principle, the measured quantity is the \u003cstrong\u003eflow velocity 0.15 … 6 m\/s\u003c\/strong\u003e; no volume flow table is given. Linear accuracy \u003cstrong\u003e± 1.0 % F.S.\u003c\/strong\u003e, repeatability ± 5 % F.S., temperature 0 … 100 °C with ± 1.5 °C. Outputs: switch PNP or NPN for flow and temperature, analog \u003cstrong\u003e4 … 20 mA, 1 … 5 V or 0 … 10 V\u003c\/strong\u003e, pulse, \u003cstrong\u003eIO-Link\u003c\/strong\u003e and \u003cstrong\u003eRS485\u003c\/strong\u003e. Supply \u003cstrong\u003e12 … 30 V DC\u003c\/strong\u003e, connection \u003cstrong\u003eM12 × 1\u003c\/strong\u003e, 5-pin. Colour display with instantaneous value, percentage of range and totalized flow, three keys.\u003c\/p\u003e\u003cp\u003eSensor body of stainless steel, O-ring FPM (default) or EPDM, impeller of PP (default) or PVDF, bearing and shaft of ZrO2 ceramic, stainless steel 316L, titanium alloy or Hastelloy. Process connection M32 × 1.5 through a welding socket, pressure \u003cstrong\u003e25 bar\u003c\/strong\u003e, medium temperature 0 … 100 °C, protection \u003cstrong\u003eIP67\u003c\/strong\u003e. Straight pipe run 5 … 10 × DN before and 3 … 5 × DN after the sensor. A declaration of conformity is not documented in the datasheet. Before sizing, note: table and k-factor for converting velocity into volume flow are missing. At ± 5 % FS the repeatability is five times the linearity error; the value has to be settled with the enquiry. No process connection other than the welding socket is documented.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eOne device for DN25 … DN600\u003c\/li\u003e\u003cli\u003eFitted through welding socket M32 × 1.5\u003c\/li\u003e\u003cli\u003eColour display with totalizer\u003c\/li\u003e\u003cli\u003eIO-Link and RS485\u003c\/li\u003e\u003cli\u003eAnalog 4 … 20 mA, 1 … 5 V or 0 … 10 V\u003c\/li\u003e\u003cli\u003eTemperature measurement with ± 1.5 °C\u003c\/li\u003e\u003cli\u003ePressure up to 25 bar, protection IP67\u003c\/li\u003e\u003cli\u003eImpeller optionally of PVDF\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453644775750,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QFKE_produkt.webp?v=1790331840"},{"product_id":"qhka-schwebekorper-durchflussmesser-metallmessrohr","title":"QHKA metal tube variable area flowmeter","description":"\u003cp\u003eThe \u003cstrong\u003eQHKA\u003c\/strong\u003e is a metal tube variable area flowmeter for liquids and gases. It is particularly suited to water, air and oil at low to high medium temperatures and, in its simplest version, works without any auxiliary power.\u003c\/p\u003e\u003cp\u003eVariable area principle, the float in a conical metal tube transmits its height magnetically to the pointer. Measuring range water \u003cstrong\u003e1 … 200 000 L\/h\u003c\/strong\u003e, air \u003cstrong\u003e0.03 … 4000 m³\/h\u003c\/strong\u003e (at 20 °C and 0.1013 MPa), turndown 10:1, accuracy \u003cstrong\u003e1.5 % F.S.\u003c\/strong\u003e Output \u003cstrong\u003e4 … 20 mA\u003c\/strong\u003e or 0 … 10 mA, alarm contact as normally open contact or relay. Supply 24 V DC two-wire (10.8 … 36 V DC), 85 … 265 V AC or NiMH battery 3.6 V \/ 4 Ah. Indicator M1 mechanical pointer without power, M2 pointer with \u003cstrong\u003eLCD\u003c\/strong\u003e for instantaneous and totalized flow, M3 LCD only.\u003c\/p\u003e\u003cp\u003eMeasuring system of 316Ti, 321, 316L, PTFE or titanium alloy. Process connection flange to GB\/T 9119-2000 or sanitary clamp; nominal pressure DN15 … DN50 4.0 MPa, DN80 … DN150 1.6 MPa, clamp 1.6 MPa. Medium temperature -80 … +200 °C, 0 … +85 °C with PTFE, up to +400 °C in the high-temperature version; ambient -30 … +85 °C; protection \u003cstrong\u003eIP65\u003c\/strong\u003e. Explosion protection per the sheet Ex ia IIC T6 and Ex d IIC T6, without certificate number and notified body. A declaration of conformity is not documented in the datasheet. Before sizing, note: each pressure value is followed by a second figure in brackets (25 MPa, 16 MPa) without explanation. A dimensioned drawing is missing; the only dimension is the overall height of 250 mm.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003ePointer version without auxiliary power\u003c\/li\u003e\u003cli\u003eLCD for instantaneous and totalized flow\u003c\/li\u003e\u003cli\u003e4 … 20 mA, 0 … 10 mA and alarm contact\u003c\/li\u003e\u003cli\u003eMedium temperature up to +400 °C in the high-temperature version\u003c\/li\u003e\u003cli\u003eMeasuring system also of PTFE or titanium alloy\u003c\/li\u003e\u003cli\u003eVertical, horizontal and other mounting positions\u003c\/li\u003e\u003cli\u003eParameters changeable on site\u003c\/li\u003e\u003cli\u003eHeating jacket available\u003c\/li\u003e\u003cli\u003eProtection IP65\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453657129286,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QHKA_produkt.webp?v=1790331873"},{"product_id":"qhkb-schwebekorper-durchflussmesser-glasmessrohr","title":"QHKB glass tube variable area flowmeter","description":"\u003cp\u003eThe \u003cstrong\u003eQHKB\u003c\/strong\u003e is a glass tube variable area flowmeter whose flow is read directly off the scale. It is particularly suited to water, juice, milk, pure water and other clean liquids as well as gases where a local reading is sufficient.\u003c\/p\u003e\u003cp\u003eVariable area principle, the float rides in a conical glass tube against a scale. Measuring range liquid \u003cstrong\u003e2.5 L\/h … 25 m³\/h\u003c\/strong\u003e in seventeen steps, gas \u003cstrong\u003e40 L\/h … 480 m³\/h\u003c\/strong\u003e in fifteen steps. Accuracy, turndown and repeatability are not documented in the datasheet. The device is purely mechanical: \u003cstrong\u003eno supply, no output\u003c\/strong\u003e, no switching contact. Process connection clamp, thread or flange, \u003cstrong\u003eG1\/4, G3\/4, G1 or G1-1\/2\u003c\/strong\u003e by size.\u003c\/p\u003e\u003cp\u003eBody of stainless steel \u003cstrong\u003e304 or 316\u003c\/strong\u003e, nominal sizes DN10, DN20, DN25 and DN40, weight 0.25 kg to 5.0 kg by size. Vertical mounting with flow from bottom to top. Working pressure, medium temperature, protection grade, float and seal materials and the type of glass are not documented. A declaration of conformity is not documented in the datasheet. Before sizing, note: working pressure and medium temperature are missing and must be clarified with the enquiry. For milk and juice, seal material and cleaning (CIP\/SIP) are not documented. The units of the range table change within the columns between L\/h, L\/min and m³\/h.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eDirect reading on the glass tube\u003c\/li\u003e\u003cli\u003eNo auxiliary power required\u003c\/li\u003e\u003cli\u003eBody of stainless steel 304 or 316\u003c\/li\u003e\u003cli\u003eClamp, thread or flange connection\u003c\/li\u003e\u003cli\u003eSeventeen liquid and fifteen gas ranges\u003c\/li\u003e\u003cli\u003eNominal sizes DN10 to DN40\u003c\/li\u003e\u003cli\u003eOffered for water, juice, milk and pure water\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453657293126,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QHKB_produkt.webp?v=1790331873"},{"product_id":"qekc-stromungs-temperatursensor-led-anzeige","title":"QEKC flow and temperature sensor, LED display","description":"\u003cp\u003eThe \u003cstrong\u003eQEKC\u003c\/strong\u003e is a thermal flow and temperature sensor without moving parts for water, oil and air. It is particularly suited to monitoring flow and temperature together in pipelines, as one sensor covers a range of pipe diameters.\u003c\/p\u003e\u003cp\u003eSealed probe with a heated resistor and a reference resistor. Flow velocity \u003cstrong\u003e1 … 150 cm\/s\u003c\/strong\u003e (water), \u003cstrong\u003e3 … 300 cm\/s\u003c\/strong\u003e (oil), \u003cstrong\u003e20 … 2000 cm\/s\u003c\/strong\u003e (air), temperature \u003cstrong\u003e-20 … +80 °C\u003c\/strong\u003e. Accuracy and repeatability are not documented. Response time \u003cstrong\u003e1 … 13 s\u003c\/strong\u003e, typically 2 s. Switching output PNP or NPN (max. 400 mA) and analogue output \u003cstrong\u003e0\/4 … 20 mA\u003c\/strong\u003e, \u003cstrong\u003e0\/1 … 5 V\u003c\/strong\u003e or \u003cstrong\u003e0\/1 … 10 V\u003c\/strong\u003e, each for flow and temperature. Supply \u003cstrong\u003e24 V DC ± 20 %\u003c\/strong\u003e, connection by M12 connector or cable.\u003c\/p\u003e\u003cp\u003eWetted parts stainless steel 304, case stainless steel. Process connection G1\/4, G1\/2, R1\/4 or R1\/2 external thread and M18 × 1.5 internal thread. Withstand pressure \u003cstrong\u003e100 bar\u003c\/strong\u003e, medium and ambient temperature -20 … +80 °C, protection grade \u003cstrong\u003eIP67\u003c\/strong\u003e. A declaration of conformity is not documented in the data sheet. Before sizing, note: Accuracy and repeatability have to be requested. The technical data give 24 V DC ± 20 %, the wiring diagrams 12 … 30 V DC. The measuring principle is not clearly described in the datasheet.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eFlow and temperature in one device\u003c\/li\u003e\u003cli\u003eThermal principle without moving parts\u003c\/li\u003e\u003cli\u003eOne sensor for a range of pipe diameters\u003c\/li\u003e\u003cli\u003eRanges documented for water, oil and air\u003c\/li\u003e\u003cli\u003e10-LED bar for trend and switching state\u003c\/li\u003e\u003cli\u003eThree-digit LED temperature display in °C\u003c\/li\u003e\u003cli\u003eSetting by the two keys S1 and S2\u003c\/li\u003e\u003cli\u003eProtection against reverse polarity, short circuit and overload\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453657325894,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QEKC_produkt.webp?v=1790331840"},{"product_id":"qekd-stromungs-temperatursensor-farbdisplay-io-link","title":"QEKD flow and temperature sensor, colour display, IO-Link","description":"\u003cp\u003eThe \u003cstrong\u003eQEKD\u003c\/strong\u003e is a thermal flow and temperature sensor with colour display and IO-Link. It is particularly suited to monitoring flow and temperature together in water lines, with one sensor covering a range of pipe diameters.\u003c\/p\u003e\u003cp\u003eSealed probe with a heated detection resistor and an unheated reference resistor. Flow velocity \u003cstrong\u003e0.01 … 2.0 m\/s\u003c\/strong\u003e (water), dead zone ≤ 0.01 m\/s, temperature \u003cstrong\u003e0 … 100 °C\u003c\/strong\u003e with \u003cstrong\u003e± 1.5 °C\u003c\/strong\u003e. Flow accuracy and repeatability are not documented. Switching output PNP or NPN (max. 200 mA) with IO-Link, analogue output \u003cstrong\u003e4 … 20 mA\u003c\/strong\u003e or \u003cstrong\u003e1 … 5 V\u003c\/strong\u003e for flow and temperature, frequency output 100 Hz at full scale. Supply \u003cstrong\u003e24 V DC ± 20 %\u003c\/strong\u003e, connection \u003cstrong\u003eM12 × 1\u003c\/strong\u003e, 5-pin.\u003c\/p\u003e\u003cp\u003eWetted parts stainless steel 316L and EPDM, housing stainless steel, head stainless steel or engineering plastic. Process connection M18 × 1.5 internal thread, probe rod or chuck Ø 25.4 mm or Ø 50.5 mm. Pressure range \u003cstrong\u003e100 bar\u003c\/strong\u003e, medium temperature 0 … 100 °C, ambient -20 … +80 °C, protection grade \u003cstrong\u003eIP67\u003c\/strong\u003e. A declaration of conformity is not documented in the data sheet. Before sizing, note: The flow range is documented for water only, although the documentation names oil and gas as applications. A flow accuracy has to be requested. The technical data give 24 V DC ± 20 %, the wiring diagram 12 … 30 V DC.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eFlow and temperature in one device\u003c\/li\u003e\u003cli\u003eThermal principle without moving parts\u003c\/li\u003e\u003cli\u003e0.96\" colour display for flow and temperature\u003c\/li\u003e\u003cli\u003eIO-Link on the switching output\u003c\/li\u003e\u003cli\u003eTwo signal lamps, one for each switching output\u003c\/li\u003e\u003cli\u003eSetting by the three keys −, M and +\u003c\/li\u003e\u003cli\u003eWetted parts stainless steel 316L and EPDM\u003c\/li\u003e\u003cli\u003ePressure range 100 bar, protection grade IP67\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453657358662,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QEKD_produkt.webp?v=1790331840"},{"product_id":"qeke-stromungs-temperatursensor-fur-wasser-farbdisplay","title":"QEKE water flow and temperature sensor, colour display","description":"\u003cp\u003eThe \u003cstrong\u003eQEKE\u003c\/strong\u003e is a thermal flow and temperature sensor for water, circulating water and cutting fluid. It is particularly suited as a low flow alarm, for cut-off detection and for pump idling protection.\u003c\/p\u003e\u003cp\u003eSealed probe with a heated detection resistor and an unheated reference resistor. Flow velocity \u003cstrong\u003e0 … 3 m\/s\u003c\/strong\u003e (water), measuring accuracy \u003cstrong\u003e\u0026lt; 10.0 %\u003c\/strong\u003e, dead zone ≤ 0.01 m\/s, temperature \u003cstrong\u003e0 … 100 °C\u003c\/strong\u003e with \u003cstrong\u003e± 1.5 °C\u003c\/strong\u003e. Repeatability is not documented. Switching output PNP or NPN (max. 200 mA) with IO-Link, analogue output \u003cstrong\u003e4 … 20 mA\u003c\/strong\u003e or \u003cstrong\u003e1 … 5 V\u003c\/strong\u003e for flow and temperature, frequency output 200 Hz at full scale. Supply \u003cstrong\u003e24 V DC ± 20 %\u003c\/strong\u003e, connection \u003cstrong\u003eM12 × 1\u003c\/strong\u003e, 5-pin.\u003c\/p\u003e\u003cp\u003eWetted parts stainless steel 316L and EPDM, housing stainless steel, head stainless steel or engineering plastic. Process connection M18 × 1.5 internal thread, probe rod or chuck Ø 25.4 mm or Ø 50.5 mm. Pressure range \u003cstrong\u003e60 bar\u003c\/strong\u003e, medium temperature 0 … 100 °C, ambient -20 … +80 °C, protection grade \u003cstrong\u003eIP67\u003c\/strong\u003e. A declaration of conformity is not documented in the data sheet. Before sizing, note: The accuracy \u0026lt; 10.0 % is given without saying whether it refers to the reading or to the full scale. A repeatability has to be requested. The technical data give 24 V DC ± 20 %, the wiring diagram 12 … 30 V DC.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eFlow and temperature in one device\u003c\/li\u003e\u003cli\u003eThermal principle without moving parts\u003c\/li\u003e\u003cli\u003eConversion table velocity\/volume flow in the data sheet\u003c\/li\u003e\u003cli\u003e0.96\" colour display for flow and temperature\u003c\/li\u003e\u003cli\u003eIO-Link on the switching output\u003c\/li\u003e\u003cli\u003eSetting by the three keys −, M and +\u003c\/li\u003e\u003cli\u003eWetted parts stainless steel 316L and EPDM\u003c\/li\u003e\u003cli\u003ePressure range 60 bar, protection grade IP67\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453657948486,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QEKE_produkt.webp?v=1790331840"},{"product_id":"qekf-stromungs-temperatursensor-fur-gase-farbdisplay","title":"QEKF gas flow and temperature sensor, colour display","description":"\u003cp\u003eThe \u003cstrong\u003eQEKF\u003c\/strong\u003e is a thermal flow and temperature sensor for air and other gases. It is particularly suited to air flow detection, to gas flow measurement of various kinds and to flow interruption protection.\u003c\/p\u003e\u003cp\u003eSealed probe with a heated detection resistor and an unheated reference resistor. Flow velocity \u003cstrong\u003e0 … 60 m\/s\u003c\/strong\u003e (reference medium air), measuring accuracy \u003cstrong\u003e≤ ± 6 %\u003c\/strong\u003e, dead zone ≤ 0.1 m\/s, temperature \u003cstrong\u003e0 … 100 °C\u003c\/strong\u003e with \u003cstrong\u003e± 1.5 °C\u003c\/strong\u003e. Repeatability is not documented. Switching output PNP or NPN (max. 200 mA) with IO-Link, analogue output \u003cstrong\u003e4 … 20 mA\u003c\/strong\u003e or \u003cstrong\u003e1 … 5 V\u003c\/strong\u003e for flow and temperature, frequency output 200 Hz at full scale. Supply \u003cstrong\u003e24 V DC ± 20 %\u003c\/strong\u003e, connection \u003cstrong\u003eM12 × 1\u003c\/strong\u003e, 5-pin.\u003c\/p\u003e\u003cp\u003eWetted parts stainless steel 316L and EPDM, housing stainless steel, head stainless steel or engineering plastic. Process connection M18 × 1.5 internal thread, probe rod or chuck Ø 25.4 mm or Ø 50.5 mm. Pressure range \u003cstrong\u003e60 bar\u003c\/strong\u003e, medium temperature 0 … 100 °C, ambient -20 … +80 °C, protection grade \u003cstrong\u003eIP67\u003c\/strong\u003e. A declaration of conformity is not documented in the data sheet. Before sizing, note: The accuracy ≤ ± 6 % is given without saying whether it refers to the reading or to the full scale. No conversion from velocity to volume flow is given for gas. The technical data give 24 V DC ± 20 %, the wiring diagram 12 … 30 V DC.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eFlow and temperature in one device\u003c\/li\u003e\u003cli\u003eThermal principle without moving parts\u003c\/li\u003e\u003cli\u003eFor air and other gases\u003c\/li\u003e\u003cli\u003e0.96\" colour display for flow and temperature\u003c\/li\u003e\u003cli\u003eIO-Link on the switching output\u003c\/li\u003e\u003cli\u003eTwo signal lamps, one for each switching output\u003c\/li\u003e\u003cli\u003eWetted parts stainless steel 316L and EPDM\u003c\/li\u003e\u003cli\u003ePressure range 60 bar, protection grade IP67\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453657981254,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QEKF_produkt.webp?v=1790331840"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/collections\/Durchflussmessung-QKA120.png?v=1788195880","url":"https:\/\/octogon.org\/en\/collections\/flow-measurement.oembed","provider":"octogon GmbH","version":"1.0","type":"link"}