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
SPECIFICATIONS 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
† All amounts shown in USD Note: Comes complete with operator’s manual.
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