GRMF Series Air Flow Meters

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GRMF Series

GRMF Meters are economically versatile, user friendly devices. Mass flow is read directly for a wide range of flow rates and gases. They feature on-board backlit display. Standard power is 24VDC supplied by an AC adapter. Their durability and NIST-traceable calibration accuracy, coupled with their relatively low cost, makes them ideal for OEM applications. Call FATHOMS 512-948-7089 for more information.

Technical Info

Wetted Material316 Stainless Steel
Output Signal0-5 VDC Linear or 4-20 MA Linear
Input Power24 VDC Standard, Optional 15 VDC 115 VAC, 220 VAC @ 500ma
Accuracy+/- 1% Full scale (including Linearity)
Repeatability+/- 0.15% Full scale or better
Connection9 Pin Sub “D”
Control SignalIntegral or 0-5 VDC
Control ValveElectromagnetic N/C
Meter Range0 – 150 SLPM  up to 0 – 500 SLPM
Controller Range0-10 SCCM to 50 SLPM
Max Pressure250 PSIG
Response Time1 Sec
Temperature Coeff.0.05% Full scale per 1º C or better
Pressure Coeff.0.01% Full scale per PSIG or better

Ordering Information

GR-(model)-(fitting code)-(output code)-(power code)-(flowbody code)-Gas and range

Model Fitting Code Output Code Power Code Flowbody Code
111 = no display
112 = w/ display
2 = 1/2"fnpt
Standard, others available upon request
A = 0-5 VDC
B = 4-20 ma
PW = 12 VDC
(Meters Only)
PS = 15 VDC
PO = 24 VDC
PV = 115 VAC
PE = 220 VAC
MF = Mid-range (316 SS)

The GRMF is available as a meter . Call 512-948-7089 FATHOMS or Contact Us for more information.