{"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","url":"https:\/\/octogon.org\/en\/products\/qgkj-mems-gas-mass-flowmeter-g3-8","provider":"octogon GmbH","version":"1.0","type":"link"}