QuadraTherm® 640i/780i

with qMix Gas Mixing Software

One Thermal Flow Meter with qMix Gas Mixing Software Manages In-the-field Changes in Flare Gas Composition without Factory Re-cal to help you meet EPA regulations.

  • Accuracy: +/- 0.5% of reading; high flows up to 60,000 sfpm (0-305 smps)
  • Very wide 100:1 turndown to handle peak and low flow fluctuations
  • Use qMix software to easily change gas composition in the field and retain accuracy
  • Use qMix-RealTime software to connect, read, and automatically update new gas compositions from a gas chromatograph — real time
  • Measures very low pressure vapors with no pressure loss
  • Validate in the field for easy in-situ calibration


QuadraTherm 640i

Industry's Most Accurate Air/Gas Insertion thermal Flow Meters

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QuadraTherm 780i

Highest Accuracy Air/Gas Inline Thermal Meter in the Industry 

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qMix App

Field-Update For Gas Composition Changes

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