The FMG70B Series from OMEGA
is a trio of extremely compact, low
cost, inductive magnetic flow
sensors. This 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.
FMG70B 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 S/cm).
The output signal frequency (or
current) is proportional to the flow.
Two options are available for
output signals, frequency or
analog (-A models).
Specifications Materials of Construction Electrodes and Process Connection:
Stainless steel 316 TI Measuring Pipe: PEEK-GF30 Gasket: EPDM Housing: Cast Aluminum Accuracy: ±1.5% of reading ±0.3% range Repeatability: 1% Minimum Conductivity: 50 µs/cm Maximum Liquid Temperature:
90°C (194°F) Ambient Temperature: 5 to 70°C
(41 to 158°F) Maximum 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 Maximum: 20 mA,
current limited Response Time: <500 mS Electrical Connection: Plug connector
M12 x 1 Power Supply: 24 Vdc ±10% Current Consumption:
Maximum 150 mA Electrical Protection: Measures
short-circuit proof (up to 30V) and
polarity protection (up to -30V) Protection Class: NEMA 4X (IP65) Flow Range: FMG71B: 0.5 to 30 LPM
(0.13 to 7.93 GPM) FMG72B: 1 to 60 LPM
(0.26 to 15.85 GPM) FMG73B: 5 to 250 LPM
(1.32 to 66 GPM) Analog Output Signal (“-A” Models)
4 to 20 mA (0 to Full Scale): Current Limitation: 26 mA approx. Maximum Load: 250 Ω to GND
† All dollar amounts on this site are shown in Singapore currency.
Note: Comes complete with operator’s manual. (Cable and power supply sold separately)