The basis of the H250 M40 is its purely mechanical design. Additional electronic modules can be added or replaced at any time without interrupting the process. The H250 M40 is the standard variable area (VA) flowmeter for the process and OEM industry. The VA meter combines mechanical flow measurement of liquids or gases with state-of-the-art communication capabilities. The device is modularly extendable. In this way, its functionality adapts to new requirements – from analogue flow measurement without auxiliary power to digital integration into a fieldbus system.

The H250 M40 is available in various materials and in many different versions. A special version for use in hygienic applications is also available. The H250 M40 is intrinsically safe and explosion-proof. Certain variants of the flowmeter with limit switch or analogue output are suitable for use in Safety Instrumented Systems (SIS).

Product highlights

· Simple, low-cost installation: Able to measure and display without auxiliary power supply

· Unique modularity and serviceability: Limit switches, 2-wire 4…20mA, totalizer with LCD and pulse output, fieldbus interfaces

· Device and application diagnostics, e.g. float blockade detection

· Universal ex-concept: Explosion proof and intrinsically safe

· Various stainless steel and alloy sensor materials

· Optional stainless steel housing for corrosive atmospheres

· Ingress protection IP66 and IP68 / NEMA4X and NEMA6, IP69K optional

· Full scale value for liquids: 10…120,000  l/h / 5…32,000 GPH

· Full scale value for gases: 0.7…2800 m3/h / 25…100,000 SCFH

· Turndown ratio 10:1 (optional 100:1)

· Accuracy: ±1.6% (acc. to VDI/VDE 3513, sheet 2)

· Suitable for use in Safety Instrumented Systems (SIL 2)

· Optional hygienic design for use in the food and pharmaceutical industry