Sierra QuadraTherm® 780i Air/ Gas Thermal Mass Flowmeter

The QuadraTherm® 780i is the most accurate inline thermal mass flow meter for air/gas flow rate measurement on the market today, achieving gas mass flow rate accuracy never before possible, +/- 0.5% of reading above 50% of full scale. The QuadraTherm instruments rivals accuracies of Coriolis technology for measuring mass air flow rate with a breakthrough thermal dispersion technology achieving “percent of reading” accuracy.
- Achieve the highest accuracy +/- 0.5% of reading
- Eliminate drift with DrySense sensor
- Reduce straight-run requirements with built-in flow conditioning
- Needs only 1-diameter up and zero downstream diameters
- Validate in the field for easy in-situ calibration
- Backed by lifetime sensor warranty
- Boiler MACT certified for area source boilers (40 CFR 63, subpart JJJJJJ) and for major source boilers (40 CFR 63, subpart DDDDD)
- Part of Sierra’s Big-3 iSeries family of flow meter technologies
- Meet EPA rule 40 CFR 63 for flare gas measurement at ultra-low flows down sfps (0.03 smps) with QuadraTherm® qMix RealTime Flare Measurement System (FMS)
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