Flow Measurement

Electromagnetic Flow Meter


electromagnetic flow meter efs803

Electromagnetic flow meter EFS803 offers accurate, reliable and stable flow measurement of liquids for a wide range of applications.

The EFS803 has the widest diameter range available in the market and the size can up to DN3800. Flanges DIN2501, ANSI, JIS are available. It offers different material type for liner and electrode to suit different application needs.

  • Reliable flow measurement for conductive fluid > 5mS/cm.
  • Process medium temperature, viscosity, density has no influence on the flow measurement.
  • EFS803 Flow sensor is maintenance free, no moving part and straight through flow tube (no pressure loss).
  • With wide selection of lining and electrodes material, flow measurement of very corrosive liquid (e.g. acids, caustic and corrosive chemicals) is not an issue.
  • Can also be used to measure fluids with entrained solids such as slurries, sewage, milk, water waste water, and many more.
  • Wide range of nominal diameters (DN 15 to DN3800)
  • Empty pipe detection
  • Typical applications of EFS803 includes monitoring of liquids, filling, dosing, etc in industries such as:
        • Water waste water Treatment
        • Building Automation (HVAC)
        • Food & Beverage
        • Chemical
        • Pulp and paper
  • For precise flow measurement of all electrically conductive liquids sludge, slurries, sewage, milk, water waste water, and many more.


Version Integral Remote
Accuracy 0.5% (0.2% Optional)
Repeatability +/- 0.1%
Full Scale Range Setting 0.3 m/s to 10 m/s (Optional up to 15 m/s)
Fluid Conductivity > 5μS/cm
Fluid Temperature -25ºC to 180ºC (Depending On Liner Material & Coil Insulation Class)
Ambient Temperature -40ºC to 65ºC
Calibration Certificate Wet Calibration – 3 Points (Additional Test Points Upon Request)
Compliant With N/A OIML R49 Type P

Process Connection

Size DN3-DN1000 DN3-DN3000
Type Flange – DIN 2501/ ANSI/JIS
Pressure Rating Refer To Page 5. Higher Pressure Rating Available On Request

Flow Sensor

Tube (Material) SS304
Liner (Wetted Parts) Hard Rubber (Std) / PTFE/ PFA / Others On Request
Signal Electrode (Wetted Parts) SS316 (Std)/ Hastelloy C/ Tantalum/ Titanium
Process – Flange Carbon Steel (Std)/ SS304 (Optional With Price Adder)
Housing Steel With Epoxy Paint
Grounding Rings SS304 (Std) / SS316
Flow Direction Bi-directional (Forward / Reverse)
Protection Class IP67 IP67 / IP68
Field Coils E class = 130ºC / H class = 180ºC


Model No CFT183 RFT203
Power Supply 85 – 253 VAC / 24 VDC
Display 2 x 16 Alpha Numeric Character LCD
In-Situ Verification Optional
Self-Diagnostics Optional
Housing Material Aluminium Alloy
Protection Class IP65 / IP66 (Optional)
Cable Length N/A 10m (Std) Other Length
Available up to 50m
Cable Entry M22x 1.5 M20x 1.5


Current 4-20mA
Pulse ≤5kHz Frequency D. C.
Contact Relay 1 no for Alarm/ Empty Pipe / Third Electrode (Optional)
Communications Standard: RS485 (Modbus Protocol)
Optional: HART Protocol / Profibus DP

 Note: Specifications are subject to change without notice