{"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","url":"https:\/\/octogon-sensors.com\/en\/products\/qfke-insertion-impeller-flow-sensor","provider":"octogon GmbH","version":"1.0","type":"link"}