Application-oriented and always ready for new tasks

Simply twist off the cover, insert the module until it clicks, twist the cover back on and that‘s it. There is no need for tools or to interrupt the process for the functionality to be scaled at will. It is just as easy to replace the measuring scale in
Modularity of electronics

Using the purely mechanical version as a base, you can add or replace electronic modules, scaling functions to your needs. Anything is possible, from analogue flow measurement without auxiliary power to digital integration into a fieldbus system.

Just twist off the cover, insert the module until it clicks, twist the cover back on and you‘re finished – no tools, no process interruption. And it‘s just as easy to replace the measuring scale when there‘s a change in the application. It couldn‘t be easier.

Electrical options:

Limit switches

Limit switch options of the H250 M40 flowmeter

3 versions:

  • 2-wire NAMUR contact as per IEC 60947-5-6
  • 3-wire transistor output 10-30 VDC
  • Potential-free reed switch

2-wire sensor module with 4…20 mA current output

2-wire sensor module option the H250 M40 flowmeter
  • 4…20 mA for 0…100 % flow
  • Can be combined with limit switches
  • 14-30 VDC power supply
  • HART® certified communication
  • Internal interface to extension modules
  • Simple loop-check at push of button

Totaliser with pulse output, limit switches and LCD

Totaliser option with pulse output, limit switches and LCD
  • Counter module with graphic display to indicate flow, counter reading, additional information and operating menu
  • Power supply via sensor module
  • Operation and parameter setting via internal microswitch or externally using a bar magnet

Fieldbus communication

Fieldbus communication options for the H250 M40
  • PROFIBUS® PA or FOUNDATION™ fieldbus
  • Power supply for entire device from 2-wire bus (16 mA current consumption)
  • Direct bus communication without additional converter
Logos of supported communication protocols of the H250 M40 flowmeter: HART®, PROFIBUS® PA, FOUNDATION™ fieldbus