{"title":"Flow - Paddle wheel (QF)","description":null,"products":[{"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"}],"url":"https:\/\/octogon-sensors.com\/en\/collections\/flow-paddle-wheel-qf.oembed","provider":"octogon GmbH","version":"1.0","type":"link"}