{"title":"Flow - Electromagnetic (QM)","description":null,"products":[{"product_id":"qmka-magnetisch-induktiver-durchflussmesser-hart-rs232","title":"QMKA electromagnetic flowmeter, HART, RS232","description":"\u003cp\u003eThe \u003cstrong\u003eQMKA\u003c\/strong\u003e is an electromagnetic flowmeter for conductive liquids and slurries. It is particularly suited to acids, alkalis, salt solutions, pulp and slurries, as the straight, empty tube has no obstruction, no pressure loss and no moving parts.\u003c\/p\u003e\u003cp\u003eFaraday's law of induction with two electrodes in a magnetic field. Flow velocity \u003cstrong\u003e0.1 … 15 m\/s\u003c\/strong\u003e, settable, accuracy \u003cstrong\u003e± 0.5 % of reading\u003c\/strong\u003e, optionally ± 0.3 % and ± 0.2 %. Conductivity \u003cstrong\u003e≥ 25 µS\/cm\u003c\/strong\u003e. Forward and reverse flow, empty-pipe detection and self-diagnosis with alarm output. Outputs \u003cstrong\u003e4 … 20 mA\u003c\/strong\u003e with optional HART, pulse or frequency, limit alarms, \u003cstrong\u003eRS485\u003c\/strong\u003e and optional RS232. Supply \u003cstrong\u003e220 V AC\u003c\/strong\u003e or \u003cstrong\u003e24 V DC\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eElectrodes 316L, platinum-iridium, Hastelloy B or C, tantalum or titanium, lining neoprene, PTFE, FEP or polyurethane rubber, shell carbon steel, stainless steel to order. Nominal pressure 4.0 MPa up to DN50 down to 0.6 MPa from DN1200, flanges to GB\/T 9119-2000 or JB\/T 81-94. Medium temperature -40 … +180 °C depending on the lining, ambient -25 … +60 °C, protection grade \u003cstrong\u003eIP65\u003c\/strong\u003e or \u003cstrong\u003eIP68\u003c\/strong\u003e. A declaration of conformity is not documented in the data sheet. Before sizing, note: The sheet gives four different nominal size ranges; the sizes that can be delivered have to be settled with the enquiry. The turndown is given as 1500:1, while the velocity span gives 150:1. No temperature limit per lining is given; the order code knows only ≤ 70 °C and ≤ 120 °C.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eNo obstruction, no pressure loss, no moving parts\u003c\/li\u003e\u003cli\u003eFor conductive liquids and slurries\u003c\/li\u003e\u003cli\u003eForward and reverse flow measurement\u003c\/li\u003e\u003cli\u003eEmpty-pipe detection and self-diagnosis with alarm\u003c\/li\u003e\u003cli\u003e4 … 20 mA, optional HART, RS485, optional RS232\u003c\/li\u003e\u003cli\u003eBacklit LCD, readable in direct sunlight\u003c\/li\u003e\u003cli\u003eOne-piece or split version\u003c\/li\u003e\u003cli\u003eProtection grade IP65 or IP68\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453661356358,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QMKA_produkt.webp?v=1790331873"},{"product_id":"qmkb-magnetisch-induktiver-durchflussmesser-modbus-rtu","title":"QMKB electromagnetic flowmeter, Modbus RTU","description":"\u003cp\u003eThe \u003cstrong\u003eQMKB\u003c\/strong\u003e is an electromagnetic flowmeter to JB\/T 9248-2015 with compact or remote converter. It is particularly suited to conductive liquids from 30 µS\/cm where lining and electrode are matched to the medium.\u003c\/p\u003e\u003cp\u003eFaraday's law of induction. Flow velocity \u003cstrong\u003e0 … 10 m\/s\u003c\/strong\u003e, accuracy \u003cstrong\u003e± 0.5 % of reading\u003c\/strong\u003e, ± 1 % below DN20. Conductivity 25 µS\/cm in theory, more than 30 µS\/cm in practice. Outputs \u003cstrong\u003e4 … 20 mA\u003c\/strong\u003e, pulse or frequency 2 kHz, 5 kHz maximum, \u003cstrong\u003eRS485 with Modbus RTU\u003c\/strong\u003e and HART. Supply \u003cstrong\u003e100 … 240 V AC\u003c\/strong\u003e 50\/60 Hz or \u003cstrong\u003e24 V DC ± 10 %\u003c\/strong\u003e, consumption ≤ 15 VA, cable entry M20 × 1.5.\u003c\/p\u003e\u003cp\u003eElectrodes 316L, Hastelloy C or B, titanium, tantalum or platinum, lining neoprene, PTFE, FEP, PFA, silicone fluoro rubber or PU, shell and flange carbon steel, stainless steel to order. Nominal pressure 1.0, 1.6, 2.5 or 4.0 MPa. Medium temperature \u003cstrong\u003e0 … +250 °C\u003c\/strong\u003e by lining, ambient -10 … +55 °C with LCD, -30 … +55 °C with OLED. Protection grade \u003cstrong\u003eIP65\u003c\/strong\u003e compact, IP65 or IP68 remote. A declaration of conformity is not documented in the data sheet. Before sizing, note: The sheet gives three different upper size limits; the sizes that can be delivered have to be settled with the enquiry. The ground ring is offered for DN15 … DN450 only. GPRS is named in the parameter table but has no field in the order code.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eCompact or remote, cable up to 300 m on request\u003c\/li\u003e\u003cli\u003eLinings up to 250 °C\u003c\/li\u003e\u003cli\u003eRS485 with Modbus RTU and HART\u003c\/li\u003e\u003cli\u003ePulse or frequency output up to 5 kHz\u003c\/li\u003e\u003cli\u003eLCD as standard, OLED to order\u003c\/li\u003e\u003cli\u003eInfrared touch keys on the compact version\u003c\/li\u003e\u003cli\u003eWide-range supply 100 … 240 V AC or 24 V DC\u003c\/li\u003e\u003cli\u003eProtection grade up to IP68 in the remote version\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453661389126,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QMKB_produkt.webp?v=1790331873"},{"product_id":"qmkc-magnetisch-induktiver-durchflussmesser-niedrige-leitfahigkeit","title":"QMKC electromagnetic flowmeter, low conductivity","description":"\u003cp\u003eThe \u003cstrong\u003eQMKC\u003c\/strong\u003e is an electromagnetic flowmeter with a low-conductivity version from \u003cstrong\u003e5 µS\/cm\u003c\/strong\u003e. It is particularly suited to demineralised water, condensate and weak process liquids as well as to acids, alkalis, salt solutions and pulp.\u003c\/p\u003e\u003cp\u003eFaraday's law of induction, straight empty measuring tube. Flow velocity \u003cstrong\u003e0.1 … 15 m\/s\u003c\/strong\u003e, settable, turndown \u003cstrong\u003e150:1\u003c\/strong\u003e. Accuracy \u003cstrong\u003e± 0.5 % of reading\u003c\/strong\u003e, optionally ± 0.3 % and ± 0.2 %, class 0.5 from 0.6 to 6 m\/s. Conductivity ≥ 25 µS\/cm conventional, \u003cstrong\u003e≥ 5 µS\/cm\u003c\/strong\u003e in the low-conductivity version. Outputs \u003cstrong\u003e4 … 20 mA\u003c\/strong\u003e, pulse or frequency, alarm output and \u003cstrong\u003eRS485\u003c\/strong\u003e. Supply \u003cstrong\u003e220 V AC\u003c\/strong\u003e or \u003cstrong\u003e24 V DC\u003c\/strong\u003e, ≤ 15 VA.\u003c\/p\u003e\u003cp\u003eElectrodes 316L, platinum-iridium, Hastelloy, tantalum, titanium or tungsten carbide, lining FEP or polyurethane, shell carbon steel, stainless steel to order. Nominal pressure 4.0 MPa up to DN50 down to 0.6 MPa from DN1200, flanges to GB\/T 20592-2009. Medium temperature -40 … +180 °C depending on the lining, ambient -25 … +60 °C, protection grade \u003cstrong\u003eIP65\u003c\/strong\u003e compact, IP65 or IP68 remote. A declaration of conformity is not documented in the data sheet. Before sizing, note: Parameter table and order code give different nominal size ranges; the sizes that can be delivered have to be settled with the enquiry. No temperature limit per lining is given; the order code knows only ≤ 70 °C and ≤ 120 °C. The pressure codes of the order code overlap.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eLow-conductivity version from 5 µS\/cm\u003c\/li\u003e\u003cli\u003eNo obstruction in the measuring tube\u003c\/li\u003e\u003cli\u003eTurndown 150:1\u003c\/li\u003e\u003cli\u003eForward and reverse flow, empty-pipe and flow limit alarms\u003c\/li\u003e\u003cli\u003eAccuracy classes documented across the velocity range\u003c\/li\u003e\u003cli\u003eBacklit LCD, rotatable up to 90°\u003c\/li\u003e\u003cli\u003eOne-piece or split version\u003c\/li\u003e\u003cli\u003eProtection grade IP65 or IP68\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453662372166,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QMKC_produkt.webp?v=1790331873"},{"product_id":"qmkd-kompakter-magnetisch-induktiver-durchflussmesser-peek-messrohr","title":"QMKD compact electromagnetic flowmeter, PEEK tube","description":"\u003cp\u003eThe \u003cstrong\u003eQMKD\u003c\/strong\u003e is a compact electromagnetic flowmeter with a PEEK measuring tube. It is particularly suited to small quantities of conductive liquids above 20 µS\/cm and to hygienic lines with clamp, thread or flange clamp connection.\u003c\/p\u003e\u003cp\u003eFaraday's law of induction. Flow \u003cstrong\u003e0.1 L\/min … 45 m³\/h\u003c\/strong\u003e by size, from 0.1 … 10 L\/min at DN4 up to 7 … 45 m³\/h at DN50. Accuracy \u003cstrong\u003e≤ ± 0.5 % of range\u003c\/strong\u003e, reproducibility ≤ ± 0.2 % of range, response time \u0026lt; 100 ms. Outputs pulse NPN, \u003cstrong\u003e4 … 20 mA\u003c\/strong\u003e (load \u0026lt; 250 Ω) and \u003cstrong\u003eRS485\u003c\/strong\u003e. Supply \u003cstrong\u003e24 V DC ± 10 %\u003c\/strong\u003e, ≤ 80 mA, reverse-polarity and short-circuit protected, connection M12 × 1, 8-pin or 5-pin.\u003c\/p\u003e\u003cp\u003eMeasuring tube PEEK, electrode Hastelloy C, connection and shell stainless steel 304, sealing EPDM. Connection types clamp, G internal thread, G external thread or flange clamp. Pressure resistance \u003cstrong\u003e16 bar\u003c\/strong\u003e, medium temperature \u003cstrong\u003e-40 … +120 °C\u003c\/strong\u003e, +140 °C optional, ambient -25 … +85 °C. A protection grade is not documented. A declaration of conformity is not documented in the data sheet. Before sizing, note: No protection grade is given in the sheet; it has to be requested. Accuracy and reproducibility refer to the range; at a tenth of the range, 0.5 % of range is 5 % of reading. The parameter table gives DN4 … DN25, the tables and the order code DN4 … DN50; the flange clamp exists only up to DN25.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eCompact design for small quantities\u003c\/li\u003e\u003cli\u003ePEEK measuring tube, Hastelloy C electrode\u003c\/li\u003e\u003cli\u003eClamp, thread or flange clamp\u003c\/li\u003e\u003cli\u003eResponse time below 100 ms\u003c\/li\u003e\u003cli\u003ePulse, 4 … 20 mA and RS485\u003c\/li\u003e\u003cli\u003eColour display in the round head with instantaneous flow and total\u003c\/li\u003e\u003cli\u003eSetting by three keys M, + and −\u003c\/li\u003e\u003cli\u003eReverse-polarity and short-circuit protected\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453662568774,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QMKD_produkt.webp?v=1790331873"}],"url":"https:\/\/octogon-sensors.com\/en\/collections\/flow-electromagnetic-qm.oembed","provider":"octogon GmbH","version":"1.0","type":"link"}