AAlborg GFC Thermal Mass Gas Flow Control Flowmeter

Reliable Thermal Mass Gass Flow Control

Model GFC thermal mass flow controllers are designed to display control and set flow rates of gases.

Built-in electromagnetic valve allows flow to pass at a certain value. The valve is normally closed as a safety feature to ensure that gas flow is interrupted in the event of a power failure.

The adjustment range can be adjusted externally and internally.

Technical Properties

  • Brand / Model Aalborg / GFC17, 37, 47, 57, 67, 77
  • Analog Output 4 - 2mA, 0 - 5 VDC
  • Vlaf External Control Signal 4 - 2mA, 0 - 5 VDC
  • Sensitivity GFC17, 37.47; 0 -100% ±1%; GFC57, 67, 77; 20 - 100 ±1.5, GFC67, 77; 0-20% ±3%
  • Sampling Time GFC17: 300ms, GFC37, 47: 600ms, GFC57, 67, 77: Within ±2% of actual flow rate over 2% to 100% of 1800 F.S
  • Ambient temperature 0….50°C
  • Measurement Ratio 40:1
  • Supply Voltage 12 Vdc 26Vdc 650mA
  • Fluid Contact Surface Material. Aluminium, 316L rust. Steel
  • Operating temperature -10…50°C
  • Display can be moved up and down 90 degrees LCD
  • Pressure GFC17, 37, 47: 1000 PSI, GFC57, 67, 77: 500 PSI
  • Measuring Range 0 - 10 l/min to 0-1000 L/min
  • Line Diameter 1/4" - 3/4"
  • O-Ring Buna-N, Viton EPR PTFE / Kalrez

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