{"title":"Temperature - Room (TR)","description":"\u003ch2\u003eRoom temperature sensors\u003c\/h2\u003e \u003cp\u003eRoom sensors measure air temperature, not the temperature of a medium: cold rooms, refrigeration plants on ships, warehouses, air-conditioning and building services. The housing is screwed to the wall and the short protective tube reaches into the room – no process connection, no process pressure.\u003c\/p\u003e \u003cp\u003eVersions are available that output their resistance directly and versions with a built-in transmitter for 4…20 mA. Some room sensors also measure relative humidity. For measurement in the medium see the \u003ca href=\"\/en\/collections\/temperatur-einschraub-te\"\u003escrew-in sensors\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"trma-raum-temperatursensor-hart","title":"TRMA room temperature sensor, HART","description":"\u003cp\u003eThe \u003cstrong\u003eTRMA\u003c\/strong\u003e is a room temperature sensor, manufacturer type Müller \u003cstrong\u003eMITS\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIt is built for air-conditioning and cold storage – refrigeration plants on ships, cold rooms, building services. The housing is screwed to the wall through two Ø 4.6 mm holes 45.5 mm apart; the short protective tube of 30 mm and Ø 6 mm reaches into the room. The housing is made of \u003cstrong\u003ePBT GF30\u003c\/strong\u003e in black with flammability rating UL94 HB, measures approx. \u003cstrong\u003e117 × 28 × 32 mm\u003c\/strong\u003e and weighs 50 g; any mounting position.\u003c\/p\u003e\n\u003cp\u003eTwo versions are available: the sensing element sits either \u003cstrong\u003edirectly on the connector\u003c\/strong\u003e – the sensor then outputs its resistance directly – or behind a \u003cstrong\u003eHART transmitter\u003c\/strong\u003e that turns it into 4 … 20 mA. Setting is done in software over HART: LRL, URL, LRV, URV, filter, adjustment and simulation.\u003c\/p\u003e\n\u003cp\u003eThe input takes \u003cstrong\u003eone or two Pt100\u003c\/strong\u003e or \u003cstrong\u003ePt1000\u003c\/strong\u003e in 2-, 3- or 4-wire connection, in classes \u003cstrong\u003eA, B and AA\u003c\/strong\u003e; with an amplifier, one Pt100 is provided for. The measuring range runs \u003cstrong\u003ewithout\u003c\/strong\u003e an amplifier from -30 to \u003cstrong\u003e+90 °C\u003c\/strong\u003e, \u003cstrong\u003ewith\u003c\/strong\u003e an amplifier from -30 to \u003cstrong\u003e+80 °C\u003c\/strong\u003e at a smallest span of 50 K – the same difference applies to the working temperature of the device. The current output delivers \u003cstrong\u003e4 … 20 mA with HART\u003c\/strong\u003e in the 2-wire loop, overall range 3.6 … 21 mA with 21 mA on break, short circuit or underrange. Total error is \u003cstrong\u003e0.3 % of the range\u003c\/strong\u003e at \u003cstrong\u003e16 bit\u003c\/strong\u003e resolution, the measuring rate 10 measurements per second, the filter 0 … 99 s. The sensor is supplied from the HART current loop with \u003cstrong\u003e12 … 40 VDC\u003c\/strong\u003e, with reverse polarity protection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote before ordering:\u003c\/strong\u003e The protective tube is fixed at 30 mm and Ø 6 mm – other lengths are not documented. Protection is at least \u003cstrong\u003eIP 65\u003c\/strong\u003e but depends on the chosen connection; the manufacturer gives no assignment. Ten connections are available, from M12×1 to a cable outlet – two sensors do not work with every connector. Configuration uses the \u003cstrong\u003eHART interface with USB and software\u003c\/strong\u003e; when communicating through a HART modem, a minimum resistance of 250 Ω must be taken into account. UL94 HB is the lowest grade in the series. No CE marking is documented in the manufacturer's data sheet, and no declaration of conformity is available.\u003c\/p\u003e\n\u003ch3\u003eBenefits at a glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRoom sensor for cold rooms, air-conditioning and building services\u003c\/li\u003e\n\u003cli\u003ePt100 or Pt1000, classes A, B and AA\u003c\/li\u003e\n\u003cli\u003eTwo versions: resistance direct or 4 … 20 mA with HART\u003c\/li\u003e\n\u003cli\u003eRange -30 to +90 °C without, -30 to +80 °C with amplifier\u003c\/li\u003e\n\u003cli\u003eTotal error 0.3 % of the range, 16 bit\u003c\/li\u003e\n\u003cli\u003ePBT GF30 housing, only 50 g, wall mounting 45.5 mm\u003c\/li\u003e\n\u003cli\u003eProtective tube 30 mm Ø 6 mm, protection at least IP 65\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"octogon Shop","offers":[{"title":"Default Title","offer_id":57245618700614,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/TRMA_MITS_titelbild_7b20f2eb-2ab1-419e-b0c7-e315d0f60e35.webp?v=1788951931"},{"product_id":"trmb-raum-widerstandsthermometer","title":"TRMB room resistance thermometer","description":"\u003cp\u003eThe \u003cstrong\u003eTRMB\u003c\/strong\u003e is a room resistance thermometer with screw terminals, manufacturer type Müller \u003cstrong\u003eRWT\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIt is wall-mounted and measures the air temperature in the room – in HVAC and cold storage applications. The data sheet does not mention a process connection or system pressure: The sensor measures the room air, the mounting position is arbitrary, and the protection class is \u003cstrong\u003eat least IP 66\u003c\/strong\u003e. Connection is not made via a plug, but via \u003cstrong\u003escrew terminals up to 2.5 mm²\u003c\/strong\u003e in the housing; the cable gland (\u003cstrong\u003eM12, M16 or M20x1.5\u003c\/strong\u003e) is set according to customer specifications.\u003c\/p\u003e\n\u003cp\u003eFour housings are available, allowing the design to adapt to the mounting location: three made of aluminum die-cast alloy in gray RAL 7032 – \u003cstrong\u003eAK082\u003c\/strong\u003e 80 × 125 × 57 mm, \u003cstrong\u003eAK081\u003c\/strong\u003e 75 × 80 × 57 mm, \u003cstrong\u003eAK061\u003c\/strong\u003e 64 × 58 × 36 mm – and \u003cstrong\u003e1503\u003c\/strong\u003e 120 × 80 × 58 mm made of ABS; weights range from approximately 225 to 500 g. The sensor tube is made of stainless steel \u003cstrong\u003e1.4571\u003c\/strong\u003e or Delrin POM.\u003c\/p\u003e\n\u003cp\u003eMeasuring elements include \u003cstrong\u003e1× or 2× Pt100\u003c\/strong\u003e, \u003cstrong\u003e1× or 2× Pt1000\u003c\/strong\u003e, \u003cstrong\u003e3× Pt100\u003c\/strong\u003e or a thermocouple \u003cstrong\u003eType K\u003c\/strong\u003e, in 2-, 3- or 4-wire configuration and in classes \u003cstrong\u003eA, B and AA (B1\/3 DIN)\u003c\/strong\u003e; the range extends from \u003cstrong\u003e-50 … +100 °C\u003c\/strong\u003e. Without a transmitter, the resistance thermometer is connected directly to the terminals – the output is then the resistance or thermovoltage signal itself, and the sensor does not require a power supply. With a transmitter, \u003cstrong\u003e4 … 20 mA\u003c\/strong\u003e and \u003cstrong\u003e2 … 10 V\u003c\/strong\u003e are available, depending on the type, with 0.3% of the range or ±0.1% of the full scale value.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note before ordering:\u003c\/strong\u003e Two of the four housings do not accommodate a transmitter – it is only intended for AK082 and 1503, but the combination with AK061 and AK081 is not blocked in the ordering key. The sensor tube is not dimensioned: Only material and position can be selected; length and diameter must be requested from the manufacturer. The permissible ambient temperature depends on the housing and the transmitter: Die-cast aluminum -50 … +100 °C, plastic -50 … +85 °C, with transmitter in both cases only \u003cstrong\u003e-40 … +85 °C\u003c\/strong\u003e. The transmitters are proprietary products: TP-RTD, DTW, TH-RTD, and DTW Ex only work with resistance thermometers; TP-TC only works with thermocouples. A CE mark and a declaration of conformity are not available; the marking \u003cstrong\u003eII 1G Ex ia IIC T6 … T4\u003c\/strong\u003e applies only to the DTW Ex transmitter, not to the sensor or the housing.\u003c\/p\u003e\n\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\n\u003cul\u003e\n\n\u003cli\u003eFour housings: die-cast aluminum AK082, AK081, AK061 or ABS 1503\u003c\/li\u003e\n\n\u003cli\u003ePt100, Pt1000, 3× Pt100 or thermocouple Type K\u003c\/li\u003e\n\n\u003cli\u003eClasses A, B and AA (B1\/3 DIN), 2-, 3- or 4-wire, -50 to +100 °C\u003c\/li\u003e\n\n\u003cli\u003eTransmitter as an option, 4 … 20 mA or 2 … 10 V\u003c\/li\u003e\n\n\u003cli\u003eScrew terminals up to 2.5 mm², cable gland M12 to M20x1.5\u003c\/li\u003e\n\n\u003cli\u003eSensor tube made of 1.4571 or Delrin POM, protection class at least IP 66\u003c\/li\u003e\n\n\n\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57356931891526,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/TRMB_produkt_c84c65f8-4488-4b9d-b9a7-d8bd4fcbd875.webp?v=1789243718"},{"product_id":"trmc-raum-klima-sensor","title":"TRMC room climate sensor","description":"\u003cp\u003eThe \u003cstrong\u003eTRMC\u003c\/strong\u003e is a room climate sensor for temperature and relative humidity, manufacturer type Müller \u003cstrong\u003eRKS\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIt is wall-mounted, combines two measured variables in an aluminum housing and displays them on site – designed for refrigeration systems on ships, for cold rooms and for building services. The housing is an \u003cstrong\u003ealuCase AC092 with 160 × 90 × 60 mm\u003c\/strong\u003e made of die-cast aluminum, weighing a maximum of \u003cstrong\u003e1.1 kg\u003c\/strong\u003e; connection is via \u003cstrong\u003escrew terminals up to 2.5 mm²\u003c\/strong\u003e and three cable glands \u003cstrong\u003eM16x1.5\u003c\/strong\u003e. The protection class is \u003cstrong\u003eIP 65\u003c\/strong\u003e without and \u003cstrong\u003eIP 63\u003c\/strong\u003e with humidity sensor, which sits behind a PTFE filter.\u003c\/p\u003e\n\u003cp\u003eWhere otherwise two devices would be wall-mounted, here there is one: transmitter and display are not accessories, but part of the order key. The display is \u003cstrong\u003e4-digit and 7-segment\u003c\/strong\u003e, 8 mm high, its range of \u003cstrong\u003e-999 … 9999\u003c\/strong\u003e digits is programmable.\u003c\/p\u003e\n\u003cp\u003eTemperature is measured by \u003cstrong\u003e1× or 2× Pt100\u003c\/strong\u003e in 2-, 3- or 4-wire circuits in classes \u003cstrong\u003eB, A, B 1\/2 DIN and B 1\/3 DIN\u003c\/strong\u003e, the protective tube is made of stainless steel \u003cstrong\u003e1.4571\u003c\/strong\u003e; the humidity sensor measures \u003cstrong\u003e0 … 100 % RH\u003c\/strong\u003e with \u003cstrong\u003e±2 % RH\u003c\/strong\u003e from 5 … 95 % RH at 10 … 40 °C. The two measured variables take separate paths: Humidity is output directly as \u003cstrong\u003e4 … 20 mA\u003c\/strong\u003e, \u003cstrong\u003e0 … 10 V\u003c\/strong\u003e or \u003cstrong\u003e2 … 10 V\u003c\/strong\u003e, for temperature a transmitter \u003cstrong\u003eTAP2L or TMRO\u003c\/strong\u003e can be selected. The device is powered by \u003cstrong\u003e24 … 30 VDC\u003c\/strong\u003e; limit contacts are not mentioned in the data sheet.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note before ordering:\u003c\/strong\u003e With the humidity sensor, the protection class decreases from IP 65 to IP 63 – the PTFE filter must allow air to pass through, so the version with humidity is no longer protected against jet water. The humidity sensor requires air movement: at least 1 m\/s across the sensor at the current output and 0.5 m\/s at the voltage output; measurement in still air is not guaranteed. The source contradicts itself regarding the measuring range: feature list \u003cstrong\u003e-40 … +80 °C\u003c\/strong\u003e, data table of the temperature sensor -50 … +100 °C – the smaller value is the safe one; the display only operates from 0 to +80 °C. The power supply is also stated differently twice in the sheet: feature list 24 VDC, order key 24 … 30 VDC – we use the value of the key. The protective tube is designated 1.4571, but not dimensioned; length and diameter must be requested. Long-term drift and calibration interval of the humidity sensor are not documented, nor are a CE mark and explosion protection.\u003c\/p\u003e\n\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\n\u003cul\u003e\n\n\u003cli\u003eTemperature and relative humidity in one device\u003c\/li\u003e\n\n\u003cli\u003eHumidity 0 … 100 % RH, ±2 % RH from 5 to 95 % RH\u003c\/li\u003e\n\n\u003cli\u003e1× or 2× Pt100, classes B to B 1\/3 DIN, measuring range -40 to +80 °C\u003c\/li\u003e\n\n\u003cli\u003eSeparate outputs, humidity as 4 … 20 mA, 0 … 10 V or 2 … 10 V\u003c\/li\u003e\n\n\u003cli\u003eDisplay 7-segment, 4-digit, 8 mm, -999 to 9999 digits\u003c\/li\u003e\n\n\u003cli\u003eAluminum housing 160 × 90 × 60 mm, maximum 1.1 kg, IP 65 – with humidity sensor IP 63\u003c\/li\u003e\n\n\n\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57356932383046,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/TRMC_produkt_b8424803-bcdb-4ec4-b028-a9bbf5af8f91.webp?v=1789243718"}],"url":"https:\/\/octogon.org\/en\/collections\/temperature-room-tr.oembed","provider":"octogon GmbH","version":"1.0","type":"link"}