Electromagnetic small flow meter
- with optional integrated pressure measurement

The robust and reliable MID‑EX‑E small flow meters provide cost-effective and reliable flow measurement with high measurement accuracy under different process conditions in underground mining. The transmitter is used to measure the combined flow and pressure (optional) of electrically conductive liquids such as water, emulsions, sludges, pulps and pastes. The devices can be used to monitor the sprinkling system for the cutting drums on shearer loaders or the cutting heads on road headers, to monitor the inlet and outlet of water-cooled engines or containers, as well as to monitor the wall and line injection, for example. Due to the electromagnetic measuring principle, the transmitters are wear- and maintenance-free.

The small meters features a wide spectrum of process connections (internal threads, plug couplers, socket nipples), nominal diameters (DN10, DN19, DN25) and pressure ratings (PN100 to PN500). In addition to the measuring range that can be set freely, all electrical connections that are commonly found in underground mining (terminals and cable connections, PROMOS, Machaczeck, Souriau, Hydrostar, Hirschmann) and output signals (5-15 Hz, 4-20 mA, 1-10 V, limit value) are available, so that the device series covers practically all application requirements.

The electromagnetic small flow meter can optionally be supplied with an integrated pressure measurement system and is suitable for use in safety systems where high levels of functional safety are required according to EN 13849-1 (Performance Level d) and EN 61508 (Safety Integrity Level 2).



  • Robust and reliable at different process conditions
  • Excellent accuracy and repeatability
  • High abrasion resistance as a result of industry-optimized measuring electrodes and linings
  • High level of reliability and measurement stability
  • High profitability as it is wear and maintenance free
  • Easy installation and commissioning
  • Compact design
  • Wide choice of user-definable measuring ranges
  • Very high pressure levels available
  • No fittings in the channel so no additional pressure loss, can be cleaned with pigs
  • Any orientation
  • The flow meter is fully sealed except for connection area inside
  • Functional safety according to EN 61508 (Safety Integrity Level 2 (SIL 2))
  • Safety of machinery according to EN 13849 (Performance Level d (PL d))

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Kirchgaesser Industrieelektronik GmbH | Am Rosenbaum 6 | D-40882 Ratingen | +49 2102 9556 |
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