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Mass Flow Controller Calibration and Repair

Accurate, Fast & Easy Flow Calibration Services

Sierra will ensure your flow meters and controllers are always in calibration because providing the highest product performance is our goal. To easily manage your meter or flow controller for repair and recalibration, use your Sierra Online Account to submit your product for Return Materials Authorization (RMA). View our Service Brochure.

All you have to do is ship us the unit. We’ll send you automated status updates along the way and ship your unit back quickly. 

Get Started-Submit RMA

Service Team Service Team (funny)

Service That’s All About YOU!

Sierra President Matthew Olin explains, "We're a private, family-owned company and our beliefs influence the way we do business, from the top to the bottom. So, providing personalized and customized service is central to our culture. If we make a mistake, we admit it and get it right. We've worked hard to establish credibility with our customers, and it's paramount that we do everything we can to maintain it. The bottom line is that great flowmeter calibration and repair service starts with you and making you happy is what we're all about."  Watch Video. Contact Us.

Laboratories, Primary Standard & NIST Certified

Since 1973, and in support of our global growth strategy, Sierra has steadily built up our flowmeter calibration and repair capability following our philosophy that a flow device for air, gas or liquid measurement is only as good as its calibration. And at the end of the day, we are only as good as our customers' level of satisfaction.

We have Flow Centers of Excellence in USA, Holland and China with an additional five Authorized Service Centers located in Korea, Singapore, India, Brazil, and Mexico. Our global capability includes over fifty flow meter calibration assets ranging from high temperature wind tunnels, closed loop gas calibration systems, primary standard piston provers and bell provers—all traceable to national standards laboratories such as NIST in accordance to Guide 25. We even offer a "DIY" calibration program for easy, accurate, on-site calibration. Read Service Brochure.

Fast Turnaround on Mass Air Flow Calibration

“Being in this industry for more than 40 years," explains Sierra President Matthew Olin, "we value the fact that our customers need it yesterday. We put a high value on the urgency that's inherent in the flow calibration and repair industry. Our many global locations help us streamline logistics and route customers to the closest service center in North America, Europe or Asia. We even get service and repair work from competitors because the highest-quality calibration just wasn't getting done. We quickly step in and get it done!". Watch Video.

Factory-Direct Flow Meters Means Low Overhead

"We maintain a lean, very competitive operation that often runs 24-hours a day if necessary," explains Sierra President Matthew Olin. "This efficiency and productivity means competitive prices.  And because we are the manufacturer, we give you timely responses to questions and draw from over 40 years of flow calibration and manufacturing expertise.  With factory-direct service, our team also has the resources to service your instrument quickly and without the hassle of dealing with a third party, thus maximizing your up-time," explains Olin.

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