FastFlow 620S Insertion Thermal Mass Air Flow Sensor


Fast Flo 620S Insertion thermal mass air flow sensor by Sierra Instruments


Fast Response Insertion Thermal Mass Air Flow Sensor

Sierra Instruments FastFlo™ 620S is an insertion thermal mass air flow sensor that has been designed to give you a highly reliable, responsive and affordable mass flow measurement for light industrial applications where a NEMA 4X (IP65) enclosure is acceptable. This airflow sensor:

  • Includes a compact, versatile, microprocessor-based transmitter
  • Integrates flow-range adjustments, and meter validation and diagnostics
  • Gives you the ability to “field-validate” your meter’s calibration
  • Increases efficiency with fast response time within 200 milliseconds
  • Wide Flow ranges from 0 to 42,000 scfh
  • Easy to install in the field or retrofit
  • Optimised air, nitrogen and inert gas measurement for 1, 2, 3, 4 inch sch
  • 40 pipe sizes
Operating Principal: Thermal dispersion technology for direct mass flow measurement featuring no pressure or temperature compensation needed, no moving parts, low pressure drop, high turndown. 
  • Compressed Air
  • Precision Measurement & Control
  • Carbon Dioxide Flow Meters
  • Nitrogen Mass Flow Meters
  • Precision Burner Control for Natural Gas Flow
  • Allocation & Billing
Benefits at a glance
  • Measuring Range 0 to 42,000 sfpm
  • 200 millisecond response to changes in flow rate
  • Ideal for OEMs and for compressed aire monitoring
  • Programmable pulse output for remote totalisation
  • Minimal flow blockage and low pressure drop
  • Field flow range adjustment and meter validation and diagnostics
  • Flow totaliser and alarms
  • No moving parts
  Download the DATA sheet
  How Thermal Mass Flow Meter Technology works