ZFM Mass Flow Meters


ZFM Mass Flow Meters combine meter intelligence, user convenience, and outstanding flow performance. They are designed for multigas/multirange functionality up to 8 bar (currently 6 gases) and a standard accuracy of ± (0.5% RD + 0.2% FS) based on actual calibration.


By connecting the instrument to the RS232/RS485 port of a PC or laptop and running free ZFM Configuration Utility software, the user can select different gas types and flow ranges within a few minutes without removing the instrument from the installation.


  • Multigas/multirange functionality up to 8 bar
  • Full-scale covered flow ranges from 3.125 sml/min to 10 sl/min are available in 7 models
  • Standard accuracy ± (0.5% RD + 0.2% FS) based on actual calibration
  • Universal 14 to 24V DC power supply input
  • Supports up to 46 Engineering Units
  • Stores additional user-calibration table data for up to 10 gases
  • 2 programmable Totalizers indicate the total gas quantity
  • User-programmable Pulse Output
  • High and low gas flow alarm limits with preset delay interval
  • 1 user-programmable solid-state relay with latch option
  • User-selectable analog 0 to 5 or 0 TO 10V DC, or 4-20mA outputs
  • Internal conversion factors for up to 26 gases
  • Digital interface
  • Multidrop capability of up to 247 units (RS-485 option)
  • Automatic sensor zero offset adjustment
  • Self-diagnostic with status LED indication
  • Free, easy-to-use configuration and calibration software
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