Electromagnetic large flow meter
- with integrated signal processing

The robust and reliable MID‑EX‑GL large flow meters provide cost-effective flow measurement with high measurement accuracy under different process conditions in underground mining. The flow meter is used to measure the flow of electrically conductive liquids such as water, emulsions, sludges, pulps and pastes. The devices can be used in large refrigeration plants to measure the flow of fresh and mine water, as well as hydraulic fluids, and to monitor hydraulic mine-waste delivery, for example. The transmitters are wear- and maintenance-free as they do not have any moving parts.

The device series is available with different nominal diameters from DN50 to DN300 (also with high-pressure couplings, e.g. SSKV heavy series, available as an option), as well as nominal pressures from 10 bar (1 MPa) to 500 bar (50 MPa). If requested by the customer, the MID‑EX‑GL can have a measuring range from 0…100 l/min (DN50) up to 0…1000 l/min (DN150) or from 0…10 m³/h (DN50) to 0…2000 m³/h (DN300), and different electrical connections. For the output signal, the customer can choose between an optocoupler output (5-15 Hz) and a current output (4-20 mA), as standard.

• 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
• Internal lining for building material, can be cleaned with pigs (on request)
• Any orientation
• The flow meter is fully sealed except for connection area inside