Top-Trak® Model 822S & Model 824S


The Models 822S & 824S are 316 stainless steel versions of the Sierra Models 822 & 824 Nylon flow body meters.  They are a favourite among customers who want cost-effective mass flow measurement but must have stainless steel construction.  Both models are ideal for measurement of most clean dry gases including mixtures, toxics, corrosives, and combustibles.

The Models 822S & 824S thermal mass flow meters are available in your choice of engineering units and in any flow range from 0-10 sccm to 0-500 slpm. Both models use Sierra’s patented sensor design with access ports to facilitate easy sensor cleaning.  In addition, Sierra’s Platinum Sensor Technology eliminates zero-drift and creates excellent long-term reliability.

Unique Product Features:

  • Accuracy of +/- 1.5% of full scale standard
  • 15Vdc Input Power
  • 0-5 Vdc or 4-20 mA Linear Output Signals
  • 316 stainless steel construction
  • Flow ranges from 0-10 sccm to 0-500 slpm
  • Tiltable LCD display