{"product_id":"qgkb-drallwirbel-durchflussmesser-fur-gas","title":"QGKB precession vortex gas flowmeter","description":"\u003cp\u003eThe \u003cstrong\u003eQGKB\u003c\/strong\u003e is a precession vortex flowmeter for gas with pressure and temperature measurement in the same housing. It is particularly suited to measuring working and standard volume flow of gas with automatic correction of temperature, pressure and compression factor.\u003c\/p\u003e\n\u003cp\u003ePrecession vortex principle, the gas is set spinning and the precession frequency of the swirl centre is counted. Flow range \u003cstrong\u003e0.3 … 3600 m³\/h\u003c\/strong\u003e depending on nominal size. System accuracy after correction \u003cstrong\u003eclass 1.0 or 1.5\u003c\/strong\u003e. Outputs \u003cstrong\u003e4 … 20 mA and pulse, isolated, limit alarms and RS485\u003c\/strong\u003e up to 1.2 km. Supply \u003cstrong\u003e24 V DC ± 15 %\u003c\/strong\u003e or 3.6 V lithium cell. Dot matrix display for volume flow, totals, pressure and temperature. Nominal sizes \u003cstrong\u003eDN15 … DN200\u003c\/strong\u003e, inlet run 10 × DN, outlet run 5 × DN.\u003c\/p\u003e\n\u003cp\u003eBody of stainless steel or aluminium alloy, process connection flange, nominal pressure 1.6, 2.5 or 4.0 MPa. Medium temperature -20 … +80 °C, ambient temperature -30 … +65 °C. Protection grade IP65, cable entry M20 × 1.5. Explosion protection per datasheet Ex d IIB T4 and Ex ia IIC T4 without assignment to a version, a certificate is not documented. A declaration of conformity is not documented in the datasheet. Before sizing, note: according to the order code the battery version has neither display nor output, all display and output data apply to the mains version only. Which version carries Ex d and which Ex ia is not stated. For versions A and B the table gives only one range per size.\u003c\/p\u003e\n\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAutomatic correction of temperature, pressure and compression factor\u003c\/li\u003e\n\u003cli\u003eFlow range 0.3 … 3600 m³\/h, DN15 … DN200\u003c\/li\u003e\n\u003cli\u003eSystem accuracy class 1.0 or 1.5\u003c\/li\u003e\n\u003cli\u003eDot matrix display, head turns 360°\u003c\/li\u003e\n\u003cli\u003e4 … 20 mA and pulse isolated, RS485 up to 1.2 km\u003c\/li\u003e\n\u003cli\u003eLimit alarms for upper and lower value\u003c\/li\u003e\n\u003cli\u003eDaily and monthly records kept for five years\u003c\/li\u003e\n\u003cli\u003eProtection grade IP65\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453620789574,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QGKB_produkt.webp?v=1790331840","url":"https:\/\/octogon-sensors.com\/en\/products\/qgkb-precession-vortex-gas-flowmeter","provider":"octogon GmbH","version":"1.0","type":"link"}