Dwyer GFM3 Series Gas Mass Flow Meter and Controllers - Flow Meter Indonesia - Flow meter air, flowmeter solar, gas, Ultrasonic, Vortex, Electromagnetic


Selasa, 15 Februari 2022

Dwyer GFM3 Series Gas Mass Flow Meter and Controllers


Dwyer GFM3 Series Gas Mass Flow Meter and Controllers is an ideal choice for the measurement of flow rates of a wide variety of gases. This digital flow meter features a 12-digit totalizer for total gas volume indication, and is available in the choice of 0 to 5 VDC, 0 to 10 VDC, or 4 to 20 mA output signals.

Standard LCD and four-button keypad allow easy access to the many features of the GFM3. The 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 the digital interface for flow to alert users of high or low thresholds being exceeded. With a high ±1% FS accuracy and ±0.25% FS repeatability, the GFM3 is the optimal choice in gas flow metering and monitoring.

The GFM3 comes with a NIST traceable certificate. Flow Monitoring, Push-Button Configuration. The unit can be calibrated for a variety of gases via push-button with 0-5 VDC, 0-10 VDC or 4-20 mA and relay outputs.

Dwyer GFM3 Series Features

  • Multi-drop capability of up to 256 units (for RS-485 option).
  • Programmable 12 digit totalizer indicates total gas volume.
  • 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 for download at www.dwyer-inst.com.
  • Set alarms remotely via digital interface for flow to alert user of high or low thresholds being exceeded.
  • NIST traceable certificate included.


  • Gas Monitoring
  • Operating Pumps and Valves
  • Process Equipment
  • Vacuum Processes
  • Glass and Metal Coating
  • Film Deposition

Another Article:

Dwyer GFM3 Series Specification

ServiceClean gases compatible with wetted parts.
Wetted Materials316 SS, 416 SS; Fluoroelastomer, Buna-N, EPR or PTFE O-rings.
Accuracy±1% FS.
Repeatability±0.25% FS.
Response Time0.6 to 1.0 s to within ±2% of setpoint over 20 to 100% FS.
Output SignalOutput Signal: Linear 0 to 5 VDC (3000 Ω min. load impedance); 0 to 10 VDC (6000 Ω min. load impedance); 4 to 20 mA (500 Ω max. loop resistance).
Relay Rating1 amp @ 24 VDC.
Max. Particulate Size5 microns.
Temperature LimitsAmbient: 32 to 122°F (0 to 50°C); Dry Gases: 14 to 122°F (-10 to 50°C).
Power Supply12 VDC; 15 VDC; ±24 VDC.
Process Connections1/8" compression fitting for flow rates ≤ 10 L/min; 1/4" for ≤ 50 L/min; 3/8" for ≤ 100 L/min.
Pressure Limits500 psia (35 bar).
Leak Integrity1 x 10-9 smL/sec of helium.
Display128 x 64 graphic LCD with backlight.
Weight1 lb (.45 kg).

Download Data Sheet: Series GFM3 Gas Mass Flow Meter and Controllers

Ref: dwyer-inst.com