Field-Adjust For Gas Composition Changes, Retain Accuracy, Save Time and Money

When gas composition changes, typical thermal meters must be sent back to the factory to be re-calibrated in order to maintain required accuracy levels.  All of this is a costly, time-consuming endeavor.

Imagine the time and money you can save by not having to send your meter back to the factory for calibration every time your gas composition changes?

Fortunately, oil/gas engineers can field-adjust gas composition on thermal mass flow meters for flare, Vapor Recovery Units (VRU), and storage vessels with Sierra’s QuadraTherm with qMix gas mixing software. The  QuadraTherm with qMix allows end users to manage gas composition changes in the field right from the Smart Interface Program (SIP) without ever sending the flow meter back to the factory to recalibrate the meter for the new gas composition. This makes meeting evolving government regulations and reporting easy for oil/gas engineers and operators.

Qmix is Powerful yet Simple

Sierra’s gas mixing software package included with every QuadraTherm thermal mass flow meter is a unique feature of the Smart Interface Program (SIP) unlike anything available on the market for industrial mass flow meters.

Watch qMix Video

Benefits of QuadraTherm with qMix

QuadraTherm with qMix Gas Mixing Software allows end users to:

• Field adjust and maintain flow meter accuracy if gas composition changes


• Avoid costly recalibration: No need to send unit back to the factory if gas composition changes


• Quickly create and upload unlimited gas mixtures onto one meter-free of charge


• Save custom gas mixtures onto your personal “My Gases Database” for later use


• Benefit from Sierra’s proprietary, ever-improving “Sierra Gas Database” to download more accurate gases

Sierra’s QuadraTherm with qMix is the perfect solution for challenging upstream production applications.