• Aalborg Gfm47S-Vdl6-A0-3Ob-40-Ss, Gfm Thermal Mass Flow Meter Steel


USD 1135.00

In stock


Aalborg, GFM47S-VDL6-A0-3OB-40-SS, GFM Thermal Mass Flow Meter Stainless Steel, Viton-A Seals, 3/8" Compression, LCD Readout Display, Universal +12 to +26 VDC, 0-5 VDC, Oxygen O2 0-60, L/Min, 14.7 psia Metering Pressure, 21.1 Deg C / 70 Deg F Temperature GFM mass flow meter A low cost solution to thermal mass flow metering for gases is presented by Aalborg in introducing the model GFM mass flow meter line

A Wheatstone bridge design is used to monitor the temperature dependent resistance gradient on the sensor windings which is linearly proportional to the instantaneous rate of flow

Both flow conduits are designed to ensure laminar flows and therefore the ratio of their flow rates is constant

Flow rates are unaffected by temperature and pressure variations within stated limitations

General Description Compact, self contained GFM mass flow meters are designed to read flow rates of gases

Principles of Operation Metered gases are divided into two laminar flow paths, one through the primary flow conduit, and the other through a capillary sensor tube

The GFM design combines the convenience and accuracy of conventional mass flow devices with low costs previously unattainable

The resultant temperature differential is proportional to the change in resistance of the sensor windings

The rugged design coupled with instrumentation grade accuracy provides versatile and economical means of flow control

Transducer power supply ports are fuse and polarity protected.

Two precision temperature sensing windings on the sensor tube are heated, and when flow takes place, gas carries heat from the upstream to the downstream windings