QuadraTherm 640i Insertion Thermal Mass Flow Meter

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QuadraTherm® 640i Air Mass Flow Meter

SIERRA INSTRUMENTS

 

QuadraTherm  640i Insertion Thermal Mass Flow Meter

 

Industry's Most Accurate Gas Thermal Insertion Mass Flow Meters

  • Achieve high accuracy +/- 0.75% of reading
  • Eliminate drift with patented DrySense™ sensor
  • Validate in the field for easy in-situ calibration
  • Use qMix software to easily change gas composition in the field and retain accuracy
  • 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)

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More Thermal mass Flowmeter Videos

Sierra Blog
Official Blog of Sierra--Let's Talk Flow

If gas composition changes, field-adjust to maintain flow meter accuracy?

Apr 13, 2015
Scott Rouse, Product Line Director

Changes in gas composition cut into productivity in the field, exactly when you need accuracy in flow meter measurement the most. But what if you could retain that precision, even when those changes occur? Now you can do just that with qMix Software.  If your gas composition changes over time, you can now quickly field-adjust the QuadraTherm thermal mass flow meter. You avoid the expense of sending the instrument back to the factory for recalibration by reprogramming it in the field to assure optimum accuracy.

We’re committed to driving innovation here at Sierra, and our qMix Software plays a critical role in our flow meter solutions for the biogas and oil & gas industries. No more sending your air mass flow meter back to the factory for gas recalibration every time your gas changes. Talk about a productivity boost!

Benefits of Changing Gas Mixtures in the Field

 

Traditionally, thermal mass flow meters are calibrated using the exact gas mixture they are intended to measure, or a surrogate mixture with very similar properties. In many industrial applications, like biogas measurement, the gas composition changes from the original calibration. When changes in gas composition occur in the field, the accuracy of the flow meter is adversely affected.

In the past, the only way to correct for a change in gas composition was to return the meter to the factory for gas recalibration. qMix provides a dynamic solution to this problem by allowing end users to manage gas composition changes in the field right from the Smart Interface Program (SIP) provided free with every instrument.

Watch the video to find out more about qMix functionality.

Through an easy-to-use software interface, qMix allows you to:

 

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

 

    • Avoid costly recalibration; once qMix has been installed, no need to send unit back to the factory if gas composition changes

 

    • 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 “Gas Database” to download more accurate gases



The qMix software package ships with every QuadraTherm 640i/780i on a beta trial basis as part of each meter’s SIP.

Thermal

Thermal Mass Flow Meters Offer Oil & Gas Companies Lowest Cost of Ownership

Tuning Your Boiler for EPA Boiler MACT Compliance

The EPA’s Boiler MACT (Maximum Achievable Control Technology) regulations are heating up. Boiler MACT is an EPA rule to limit hazardous air pollutants (HAP) from commercial and industrial boilers and process heaters. Originally published in 2011 as a mandate driven by the Clean Air Act...

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Thermal Mass Flow Meters Offer Oil & Gas Companies Lowest Cost of Ownership

Thermal Mass Flow Meters Offer Oil & Gas Companies Lowest Cost of Ownership

The Wall Street Journal recently reported that oil prices have hit a rock bottom $40 a barrel, the lowest since 2009. How does this affect the oil companies? Well, the consumer gets the benefit of the low pump price which does loosen discretionary spending, but the oil & gas companies are hurting-spending less money on capital investment due to tightened budgets.

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Why Dry Sensor Design Is Key for Stability, Accuracy and In-Situ Validation

Why Dry Sensor Design Is Key for Stability, Accuracy and In-Situ Validation

Designing a stable sensor that will last over the lifetime of your thermal mass flow meter is the holy grail in thermal mass flow meter design. The truth is that most flow meter manufacturers use a "wet" sensor design, filled with epoxies and cements. As conditions in your application change, the sensor is heated and cooled over time, expanding and contracting the cement inside the sensor—and you know what happens to cement as it is repeatedly heated and then cooled, it shifts and cracks. This "wet" sensor design greatly compromises the accuracy of the thermal sensor over time.

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Principle of Operations

NEW Video Animation: How Do Thermal Mass Flowmeters Work?

NEW Video Animation: How Do Thermal Mass Flowmeters Work?

As if your were actor Dennis Quaid in the popular 1987 movie Innerspace, journey inside the pipe to learn the operational principle of thermal mass flow technology and see, from a molecules perspective, why thermal flow meters have become extremely popular due to high accuracy, no moving parts, negligible pressure drop, sensitive direct mass flow measurement with high turndown (up to 1000 to 1) giving ability to measure very low to very high flows with the same instrument.

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Natural Gas Measurement

Part 1: Challenges with Submetering Natural Gas

Part 1: Challenges with Submetering Natural Gas

In my latest article in Gases & Instrumentation magazine, I explore energy management as it relates to the natural gas industry. Natural gas exists in abundance in this country, with production expected to increase 44 percent by 2040. With such unprecedented growth in production of this natural resource, utility companies must focus on providing the most accurate gas billing possible.

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Qmix

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

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

For the first time, customers can adjust their gas composition in the field on thermal flow meters to solve EPA reporting challenges. 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 endevour.

Read More >

If gas composition changes, field-adjust to maintain flow meter accuracy?

If gas composition changes, field-adjust to maintain flow meter accuracy?

Changes in gas composition cut into productivity in the field, exactly when you need accuracy in flow meter measurement the most. But what if you could retain that precision, even when those changes occur? Now you can do just that with qMix Software.  If your gas composition changes over time, you can now quickly field-adjust the QuadraTherm thermal mass flow meter. You avoid the expense of sending the instrument back to the factory for recalibration by reprogramming it in the field to assure optimum accuracy.

Read More >

Insitu Calibration

The Truth About In-Situ Calibration Validation of Thermal Flowmeters

The Truth About In-Situ Calibration Validation of Thermal Flowmeters

In-situ calibration validation is one of the great benefits of thermal mass flow technology. This NEW video reviews in-situ calibration validation and details how thermal sensor stability is the only way a calibration validation is actually valid! Get the truth about in-situ calibration so you can make informed decisions. Watch the video now! For a more detailed look at five in-situ calibration validation approaches, and how each method has varying cost and complexity, download our in-depth white paper, In-Situ Calibration, now.

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