Thermal Flow Meters


Compact thermal flow meter line has been expanded and improved with an all new, advanced electronics design that features the addition of HART, Version 7, digital bus communication and more. Models provide users with an economical yet rugged solution to measuring air or gases in demanding industrial process and plant applications.

Added HART digital bus communication and its associated device driver (DD) have been tested and certified by the Fieldcomm (HART) Group to meet the latest Version 7 standards. In addition to HART bus communications, standard ST51A, ST75A and ST75AV outputs are dual 4-20 mA that meets NAMUR NE43 and features a 500 Hz pulse.


Additional features include:

  • Electronics housed in rugged IP67 dual-cable port transmitter enclosure
  • Transmitter can be mounted directly to flow sensor or remotely mounted up to 100 ft away
  • FM, FMc, ATEX & IECEx approvals
  • Direct mass flow measuring and require no additional temperature or pressure sensors
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