300 Vue Series

300 Vue Series

See Mass Flow in a Whole New Way!

The 300 Vue is THI's newest series of digital gas thermal mass flow instruments which provide accurate, fast and convenient gas measurement and control. The color touchscreen display allows for local adjustments and monitoring of gas flow. Powerful and intuitive menus enable control of the gas flow in many ways. The instrument can be installed and operating in seconds. Flexible custom flow instruments without the custom price or lead time.

  • Color Touch Screen Display
  • Graphically View Flow
  • Multi-gas Calibrations
  • Sensor Diagnostics
  • Totalizer
  • Analog and Digital Output
    • 0-5VDC, 0-10VDC, 4-20mA
    • RS232, RS485, USB
  • Flow Capacity from 5 sccm to 10000 SLM
  • Fitting Options from Compression to Surface Mount
  • Metal and Elastomer Seal Available
  • Linear, Accurate, Flexible
  • Free Application Support
300 Vue Series Digital Flow Meter 300 Vue Series Digital Flow Controller
Range (N2)
Low FLow


Medium Flow



High Flow
HFM-D-300B (L): 0 - 5 sccm to 0 - 10 sccm
HFM-D-300B (H): 0 - 10 sccm to 0 - 25 slm
HFM-D-301B (L): 0 - 25 slm to 0 - 300 slm
HFM-D-301B (H): 0 - 300 slm to 0 - 1000 slm
HFM-D-305B: 0 - 1000 slm to 0 - 2500 slm
HFM-D-306B: 0 - 2500 slm to 0 - 10000 slm

HFC-D-302B (L): 0 - 5 sccm to 0 - 10 sccm
HFC-D-302B(H): 0 - 10 sccm to 0 - 25 slm

HFC-D-303B(L): 0 - 25 slm to 0 - 300 slm
HFC-D-303B(H): 0 - 300 slm to 0 - 1000 slm
HFC-D-307B: 0 - 1000 slm to 0 - 2500 slm

HFC-D-308B: 0 - 2500 slm to 0 - 10000 slm
Accuracy + (0.5% of reading + 0.2% of full scale) + (0.5% of reading + 0.2% of full scale)
Repeatability + 0.15% of full scale + 0.15% of full scale
Settling Time TypicallyTypically
Analog I/O (Standard) 0 - 5 VDC 0 - 5 VDC
Analog I/O (Optional) 0 - 10 VDC, 0-20 mA, 4 - 20 mA 0 - 10 VDC, 0-20 mA, 4 - 20 mA
Digital I/O (Standard) RS-232, RS-485, USB RS-232, RS-485, USB
Analog Connector 9-pin subminiature D 9-pin subminiature D
Fittings Surface Mount, Swagelok®, VCO, VCR, NPT Surface Mount, Swagelok®, VCO, VCR, NPT
Power Requirements 11 - 36 VDC @ 3.1 Watt (max), Unipolar or Bipolar (e.g. + 15, + 12 VDC) 11 - 36 VDC @ 3.1 Watt (max), Unipolar or Bipolar (e.g. + 15, + 12 VDC)
Wetted Materials 316L SS, Nickel 200, 304 SS, 302 SS 316L SS, Nickel 200, 304 SS, 302 SS, Kalrez® (Valve Seat)