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Electromagnetic Low Flowmeter - Discontinued

FMG70 Series

 | FMG70 Series

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  • No Moving Parts
  • No Flow Obstructions
  • Maintenance-Free
  • Fast Response Time (< 500 ms)
  • Minimal Straight Pipe Requirements


The FMG70 series has been discontinued. Please see the FMG70B Series as a possible alternative or contact our Flow Engineering department.

The FMG70 series from OMEGA is a trio of extremely compact, low cost, inductive magnetic flow sensors. This new product line allows a unique and highly reliable measuring technique to be introduced into areas of process control previously considered not possible.

Changes of temperature, density, viscosity, concentration or electrical conductivity (minimum conductivity of 50 ..µs/cm) of the fluid do not affect the output signal.

FMG70 series can be used in areas where flow sensors with moving parts e. g. paddle wheel sensors, cannot be applied due to contamination / particulate in the media. The sensor is intended for continuously measuring of flow rates or for dosing / batching of electrically conductive liquids (minimum conductivity 50 µs/cm). The output signal frequency (or current) is proportional to the flow. Two options are available for output signals, frequency or analog (-A Models).

Materials of Construction
Electrodes and Process Connection:
Stainless steel 316 TI
Measuring Pipe: PEEK-GF30
Gasket: EPDM
Housing: Cast Aluminum
Accuracy: ±2% of reading
Repeatability: 2%
Minimum Conductivity: 50 µs/cm
Max Liquid Temperature: 90oC (194°F)
Ambient Temperature: 5 to 70oC (41 to 158°F)
Max Pressure: 16 bar (232 psi)
Flow Indication: LED green, flow proportional blinking
Frequency: Square wave signal NPN, internal pull-up resistor 2 kΩ pulse duty ratio 50:50
Signal Current Max: 20 mA, current limited
Response Time: <500 mS
Electrical Connection: Plug connector M12 x 1
Power Supply: 24 Vdc ±10%
Current Consumption: Max 80 mA
Electrical Protection: Measures shortcircuit proof (up to 30V) and polarity protection (up to -30V)
Protection Class: NEMA 4X (IP65)
Flow Range:
    FMG71: 0.95 to 18.9 LPM (0.25 to 5.0 GPM)
    FMG72: 1.89 to 37.9 LPM (0.5 to 10.0 GPM)
    FMG73: 9.46 to 189.3 LPM (2.5 to 50.0 GPM)
Analog Output Signal ("-A" Models) 4 to 20 mA (0 to Full Scale):
    Current Limitation: 26 mA approx.
    Max Load: 250 Ω to GND
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All amounts shown in USD
Note: Comes complete with operator’s manual.

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