{"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","url":"https:\/\/octogon-sensors.com\/en\/products\/qgkk-thermal-gas-flow-sensor-led-display","provider":"octogon GmbH","version":"1.0","type":"link"}