Gas mass flow controller FMA5 series
for nitrogendigitalanalog output

gas mass flow controller
gas mass flow controller
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for gas, for nitrogen
Other characteristics
digital, analog output
Flow rate

Max.: 100 l/min (26 us gal/min)

Min.: 0 l/min (0 us gal/min)


Gas Mass flow Controllers With or Without Display • Flowmeter to read and Control Gas Mass Flow Without Temperature or Pressure Compensation • NIST Traceable Calibration • Available in Economical Aluminum or Corrosion-Resistant 316 SS • Tiltable LCD Display for Easy Reading Description The gas mass flow controllers of FMA5400A/5500A Series provide for controlling the flow of a wide variety of gases from 0-10 SCCM up to 100 SLM. Utilizing heat transfer through a heated tube to measure molecular gas flowrate, the FMA5400A/5500A provides measurement of direct gas mass flowrate, without the need to compensate for variations in gas temperature or pressure (within stated limits). They are available in an economical aluminium/brass construction for typical gas flows and a 316 SS construction for applications requiring more corrosion resistance. The FMA5400A series without integral display is supplied with both an analog 0-5 Vdc and 4 to 20 mA output for remote monitoring; the FMA5500A series has both an integral 3-1/2 digit display and analog output. The display is tiltable over 90 degrees for viewing convenience. The display is calibrated standard to read out directly in SCCM or SLM for nitrogen (other gas calibrations available on special order). The FMA5400A/5500A mass flow controllers feature a built-in normally-closed electromagnetic valve for maintaining a constant flowrate regardless of variations in inlet or outlet pressures. The setpoint is controlled either locally via a potentiometer accessible through an access window in the case or remotely via an analog 0-5 Vdc or 4-20 mA signal (field selectable).


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