Heinrichs Messtechnik GmbH • Extreme robustness due to guide stars instead of guide rods • Flow measurement of liquids, gases and steam • Available up to DN 150 nominal size • Linear characteristic curve due to conically optimized float form • Outstandingly clear reading thanks to 90° arranged scale • Electrical transmitter with HART® • Suitable for installation in safety-related measuring systems according to SIL Technical Information BGN Subject to change without prior notice.

Heinrichs Messtechnik GmbHFunction The BGN variable area flow meter consists of a meter tube with connections, a measuring ring, and a conical float. The fluid flows from bottom to top through the meter tube of the flow meter. The float (2) is lifted until an annular gap between the measuring ring (1) and the conical-shaped float (2) is produced which corresponds to the flow. The forces acting on the float (weight force, flow force), are in equilibrium. The position of the float is transferred via an encapsulated magnet (3) to a counter magnet (4) which is fitted at the pointer axle and thus...

Heinrichs Messtechnik GmbH Versions / Variations Aluminum display case Optimized aluminum display. Large and well-arranged scale with 90° angle for best reading Rounded edges and rims ensure a smooth draining of liquids after wet contact. A special anodization and paint finish make the indicator housing also suitable for outdoor use. Process connections: flange, thread, clamp, weld ends Stainless steel indicator Stainless steel indicator With IP65, IP66, IP67 protection for extreme applications Large and well-arranged scale with 90° angle for optimal reading Rounds design ensures a smooth draining...

Heinrichs Messtechnik GmbH High-pressure applications Through the unique design of the measuring fitting with cylindrical measuring pipe and conical float, the units can be produced with thick-walled pipes. This enables the use in highpressure applications, for which other measuring instruments are unavailable, e.g. sour gas. Version with heating jacket The cylindrical measuring pipe allows a double-walled construction and the connection of a medium heater, e.g. for steam, hot water or thermal oil, without difficulty. This enables the use for extremely difficult media or operating conditions....

Heinrichs Messtechnik GmbHTechnical Data • Analogue: Special materials on request Process connection: Special connections on request Nominal pressure: • PN 40, ASME Cl150 / 300 (Standard) (BGN-S/H) • PN 16, ASME Cl150 (Standard) (BGN-P) Higher pressures on request (max. 600 bar) Process temperature: Ambient temperature: • -40°C ... +80°C without electric accessories • -25°C ... +70°C / +80°C with limit switches Measurement deviation: Water : ± 1.6% of the measured value Gas : ± 1.8% of the measured value qG 50% acc. to VDI/VDE 3513-2 Water :± 2% of the measured value Gas : ± 2,2% of the measured...

Heinrichs Messtechnik GmbHMeasuring ranges DIN Reference conditions: according to IEC 770: Water at 20°C, air at 20°C and 1.013 bar abs. 1) Provide spring choke or gas damping in the S version for gas measurement. The spring choke or gas damping is not available for P or H versions. Additional pressure loss approx. 200 mbar. 2) No measurement is possible at atmospheric pressure upstream and downstream of the flowmeter. The values given are for orientation only. For gases, the required upstream pressure should be approx. 2...3 times the pressure loss of the measuring device. 3) only in versions...

Heinrichs Messtechnik GmbH Certificates and Approvals Explosion protection: ATEX (IECEx) Directive BGN (mechanical device): Ex-marking: HMT21-4111X (Conformity Statement) II 2G Ex h IIC T1…T6 Gb II 2D Ex h IIIC T85°C/T350°C Db PTB 99 ATEX 2219X PTB 00 ATEX 2049X II 2G Ex ia IIC T6…T1 Gb II 1D Ex ia IIIC T200 135°C Da NEPSI (China): ES: Ex-Kennzeichnung: PESO (India): ES: Ex-Kennzeichnung: Non-electrical devices: for use in potentially explosive atmospheres. Non-electrical equipment: protection by Design safety. General regulations. Intrinsic safety "i". Electromagnetic compatibility: EMV Directive...

Heinrichs Messtechnik GmbHDimensions Flange connection - Indicator aluminum Technical Information BGN Subject to change without prior notice.

Heinrichs Messtechnik GmbHThreaded connection - display part aluminium Threaded connection - indicator part stainless steel Fitting Technical Information BGN Subject to change without prior notice.

Heinrichs Messtechnik GmbHOrder code Example: BGN-S50-321BQ0G0-0-S20-0-H Model code Technical Information BGN Subject to change without prior notice.

Technical Information BGN Subject to change without prior notice.

Heinrichs Messtechnik GmbH - 3) Reduced sealing strip. 5) Pressure stage for model “S" and “H". 8) Only possible with advanced display part. 9) Conversion is not possible taking into consideration the viscosity. 10) Gas damping, liquid damping or spring stop are not possible. 11) Not for Model “P" in device size 80. 12) Combination of stainless-steel display part with ES and counter module not possible. 14) Only for device size 10 15) SIL 1 - IEC 61508-2:2010 Conformity confirmed by EXIDA 16) SIL 1 - IEC 61508-2:2000 Conformity confirmed by EXIDA 17) SIL 2 - IEC 61508-2:2000 Conformity confirmed...