Analog Mass Flow Meters & Controllers » SideTrak® Model 840



SideTrak® Model 840 Analog Gas Mass Flow Controller
SideTrak® Mass Flow Meters Accurately Handle Gas Mass Flow
Get accurate, reliable mass flow control with Sierra’s SideTrak® Model 840 analog mass flow meter and controller. With precise primary standard calibration to measure any clean, dry gas under with low pressure drop – including oxygen, mixtures, toxics, corrosives and combustibles – the SideTrak flow meter has proven to be one of the world’s most dependable flow controllers.
Our SideTrak is widely used in process control, leak detection, gas distribution and scientific research applications at companies worldwide.
View our complete line of digital mass flow meters and flow meters for liquids or learn more about selecting gas mass flow products. Contact us for additional information or get live help.




| Unique Product Features |
| • Accuracy of +/- 1% of full scale • 316 stainless steel construction • Flow ranges from 0-10 sccm to 0-500 slpm • Direct monitoring of mass flow rate • Fast-response (1 second) control valve • “Primary Standard” calibration for best accuracy & NIST traceability • CE approved |









