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Series GFM4 Gas Mass Flow Meter

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SeriesGFM4

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Gas Mass Flow Meter
Pressure, Temperature and Flow Monitoring

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Pressure, Temperature and Flow Monitoring

The Series GFM4 Gas Mass Flow Meter is an ideal choice for the measurement of flow rates of a wide variety of gases. This multi parameter flow meter supports various functions such as flow totalizer, flow, temperature, and pressure alarms, and is available in a choice of 0 to 5VDC, 0 to 10VDC, or 4 to 20 mA output signals. Standard LCD and four button keypad allows easy access to the many features of the GFM4. Digital interface operates through available RS-485 or RS-232, providing access to internal data parameters and multi-drop capability of up to 255 units (RS-485 only). Set alarms remotely via digital interface for flow, pressure, and temperature to alert user of high or low thresholds being exceeded. With a high ±1% FS accuracy and ±0.25% FS repeatability, the GFM4 is the optimal choice in gas flow metering and monitoring. The GFM4 comes with a NIST traceable certificate.

Product Applications

  • Gas flow measurement
  • Gas flow control
  • Operating pumps and valves
  • Process equipment
  • Vacuum processes
  • Glass and metal coating
  • Film deposition
  • Multi-drop capability of up to 256 units (for RS-485 option). 

    • Programmable 12 digit totalizer indicates total gas volume. 

    • Flow alarm limits for high and low gas flow with relay output. 

    • Pressure alarm limits for high and low gas pressure with relay output. 

    • Four button keypad and large 128x64 graphical LCD with backlight. 

    • Internal conversion factors for up to 32 gases. 

    • Automatic zero adjustment. 

    • Self diagnostic tests. 

    • Free communication software available at www.dwyer-inst.com. 

    • NIST traceable certificate included.