QuadraTherm 640i

QuadraTherm 640i

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The QuadraTherm® 640i is the most accurate insertion-probe thermal mass flow meter for air / gas mass flow rate measurement on the market today, achieving gas mass flow rate accuracy never before possible, +/- 0.75% of reading above 50% of full scale. The QuadraTherm 640i air / gas mass flow meter marks an accuracy breakthrough in thermal dispersion technology achieving extreme precision with “percent of reading” accuracy, which for the first time rivals accuracies of Coriolis technology for measuring gas mass flow rate.

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OVERVIEW

Product Benefits

  • Patented breakthrough “quad” 4-sensor thermal sensor technology
  • Patented zero drift DrySense™ velocity sensor
  • Lifetime warranty on sensor
  • “Percent of reading” accuracy, which for the first time rivals Coriolis technology
  • Sierra’s state-of-the-art ISO 9000 closed-loop calibration facility matches each application for best accuracy
  • Greenhouse Gas (GHG) certified to meet EPA (40 CFR Part 98)
  • Optimized (CH4) as well as N20, SF6, HFCs, PFCs and CO2, per the EPA mandate
  • Ideal for high-accuracy applications like custody transfer, wastewater treatment, hazardous areas, facilities management and general process control applications