MFE600E Electromagnetic Flowmeter for Water Treatment and Irrigation

The measurement principle of MFE600E electromagnetic flowmeters is based on Faraday’s law of induction. MFE600E can accurately measure the flow of any electrically conductive liquid, even
those with low conductivities (starting from 5 μS/cm).

Applications

  • Water industry: revenue metering, district metering, water abstraction
  • Irrigation: Pumping station, pipe line, leakage detection
  • Pulp & paper industry: pulp, pastes, sludges and other caustic mediums, liquor, additives, bleaches, colourants
  • Metal & mining industry: mediums with a high solid content, like ore or excavator mud

Image Credit: Micro Sensor

Features

  • Open flow, no moving components, and no pressure loss in the measurement pipe
  • Multiple material choices of electrode and lining, solid against highly corrosive or abrasive medium and applications
  • Multiple parameters displayed, including flux, transient flux, velocity, flow %, etc
  • Forward flux and reverse flux can be measured
  • The variations in fluid density, viscosity, temperature, pressure, and electrical conductivity will not affect accuracy
  • EEPROM store parameter settings and cumulative values when power off, supports zero drift, self-diagnosis and alarm functions
  • With integrated grounding electrode (DN25-DN500), no need of grounding ring
  • Remote display available. Flange, sanitary, threaded, clamping type installation optional.

Image Credit: Micro Sensor

Specifications

. .
Diameter Flange type: DN6~DN1600, ≥DN20 with built-in grounding electrode
Sanitary type: DN6~DN50
Threaded type: DN6~DN50
Clamping type: DN10~DN300
Measurement accuracy ±0.2%FS,±0.5%FS
Electrode type Standard fixed electrode, antifouling electrode
DN6~DN20: a pair of measuring electrodes, no grounding electrodes
DN25~DN500: a pair of measuring electrodes and a pair of grounding electrodes
≥DN600: 2 pairs of measuring electrodes and a pair of grounding electrodes
Structure type Integrated type, separated type (cable length of separated type≤100m)
Rated pressure GB: PN2.5, PN6, PN16, PN25, PN40, PN63, PN100, PN160, PN250
ANSI: CLASS 150, CLASS 300, CLASS 600, CLASS 900
DIN: PN10, PN16, PN25, PN40, PN63
JIS: 5K,10K,16K, 20K, 30K, 40K, 63K
Others: customizable
Electrode material 316L, Ti, HB/HC, Ta, WC, Pt
Lining material Neoprene (CR), Natural Rubber (NR), Polyurethane Rubber (PU)
Polytetrafluoroethylene (PTFE), F46, PFA
Measured pipe Stainless steel
Flange/body flange Carbon steel (standard), stainless steel (optional)
Converter housing Aluminum die-casting
Power supply 100 V AC~240V AC
12V DC, 24V DC
Battery supply (LCD display, RS485 output, wireless output, frequency/pulse output, and the frequency/pulse output is used only for calibration or calibration purposes.)
Solar power with storage battery
Output signal 4mA~20mA DC (load resistance 0Ω~750Ω, active output)
Hart
Frequency, pulse output (Passive, active output optional)
Upper and lower limit alarm output
RS485 (standard Modbus protocol), RS232
Profibus-DP, Profibus-PA
2G, 4G, NB, LoRa wireless transmission
Electrical connection M20×1.5
IP protection IP65, IP68 (separated type only)
Environmental temp. -20 ℃ ~60 ℃
Storage temp. -40 ℃ ~60 ℃
Relative humidity 5%~90%

 

Working Principle

Based on Faraday’s Law of Electromagnetic Induction, the Electromagnetic Flowmeter’s operation produces an induced electromotive force in the liquid conductor as the conductive liquid flows through it.

This electromotive force is directly proportional to the liquid’s velocity, the magnetic flux density, and the conductor’s width (interior diameter of the flowmeter). A pair of electrodes on the flowmeter’s tube wall detect this generated electromotive force, which has the following equation for its magnitude:

U = K×B×V×D

U: Induced electromotive force

K: Instrument Constant

B: Magnetic flux density

V: Velocity

D: Interior diameter of measuring pipe

Working principle diagram.

Figure 1. Working principle diagram. Image Credit: Micro Sensor Co., Ltd

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