Mass Flow - Digital

HFM-D-306A Digital Mass Flow Meter

HFM-D-306A Digital Mass Flow Meter

The A Series of the Digital 300 line of thermal mass flow meters and controllers utilizes a 15-pin D-sub connector which is compatible with Teledyne Hastings’ power supplies and cables. The Series also employs dual RJ communication ports for RS232/RS485 communications. The A Series is backwards compatible with previous versions of Teledyne’s Digital 300. Also, the A Series can be configured with the optional IP67 enclosure to provide protection against water and dust.


  • Available Flow Ranges:
    • 0-2500 up to 0-10000 slm (N2 Equivalent)
  • Accuracy in Nitrogen
    • ±(0.5% of Reading +0.2% of Full Scale)
  • IP-67 Enclosure Available (“A” Series)
  • Operating Pressures to 300 psi
  • NIST Traceable Calibration
  • RS232 / RS485
  • USB
  • Totalized Flow


  • Alternate Energy
  • Secondary Calibration Reference
  • Fuel Cell R&D
  • Specialty Gas Delivery
  • Custody Transfer


  • High Accuracy
  • Fast Metering Response
  • Superior Linearity
  • Rapid Controller Settling Time
  • Digital Extended Range