Natural Gas Flow Meters

Measuring Natural Gas More Efficiently

Sierra Instruments has a wide range of natural gas flow meters to increase efficiency in boiler/burner control, fuel-to-air ratio, and custody transfer applications. The more accurate your natural gas measurements, the more money you will save in natural gas costs and run an efficient facility. View more natural gas flow applications that rely on gas flow control and measurement.

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TM100-View Software 

Meter Data and Configuration

  • Get quick access to all configuration parameters with pop-up windows and pull-down menus
  • View raw data to diagnose or troubleshoot your meter
  • Select measurement units, flow and temperature ranges, alarm settings, and more
  • Print or save a TM-Cal™ Calibration Validation Certificate
  • Set alarms and display alarm codes
  • Optional Gas-Mix Menu
  • Use simulation mode to align 4-20mA output with the input to the user’s PLC/DCS
qMix Gas Mixing Feature

Field-Update For Gas Composition Changes

  • Powerful, gas mixing software to create custom gas mixtures in the field
  • Per meter license gives unlimited custom gas mixtures and uploads per meter serial number
  • Maintain flow meter accuracy if gas composition changes
  • No need to send unit back to the factory if gas composition changes
  • Avoid costly recalibration
FlatTrak 780S

Inline Thermal Mass Flow Meters with Flow Conditioning

  • Reduce straight-run requirements with built-in flow conditioning
  • Eliminate drift with DrySense sensor
  • Needs only 3-diameters up, zero downstream
  • Validate in the field for easy in-situ calibration
  • Backed by lifetime sensor warranty
Flow Totalizer

Four Multi-Gas Flow Totalizers for the QuadraTherm Thermal Mass Flow Meter

  • View and totalize four gases with one instrument
  • Totalize multiple gases independent of each other
  • Accurately monetize and allocate gas usage
QuadraTherm® 640i

Industry's Most Accurate Air / 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 Download Flare Gas Mass Measuring Tech Note
  • 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) Learn more > 
  • Part of Sierra's Big-3 iSeries family of flow meter technologies Learn more >
  • Meet EPA rule 40 CFR 63 for flare gas measurement at ultra-low flows down sfps (0.03 smps) with QuadraTherm® qMix RealTime Flare Measurement System (FMS)
QuadraTherm® 780i

Highest Air/Gas Mass Flow Measurement Accuracy in Industry

  • Achieve the highest accuracy +/- 0.5% of reading
  • Eliminate drift with DrySense sensor
  • Reduce straight-run requirements with built-in flow conditioning
  • Needs only 1-diameter up and zero downstream diameters
  • Validate in the field for easy in-situ calibration
  • 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), Learn more > 
  • Part of Sierra's Big-3 iSeries family of flow meter technologies, Learn more >
  • Meet EPA rule 40 CFR 63 for flare gas measurement at ultra-low flows down sfps (0.03 smps) with QuadraTherm® qMix RealTime Flare Measurement System (FMS)
FlowTrak

Optimize Flow Profile For Best Accuracy

  • Creates uniform flow profile at economical price
  • Maximizes flow measurement accuracy in constrained piping environments
  • Reduce upstream and downstream diameters
  • Proven Dual-Plate technology
SteelMassTM 640S

Insertion Gas Mass Flow Meter

  • Insertion, totalizing air/gas mass flow meter
  • Eliminate drift with patented DrySense™ sensor
  • Increase flexibility with low pressure drop, high turndown
  • Validate in the field for easy in-situ calibration
  • Backed by lifetime sensor warranty
BoilerTrak 620S-BT

Insertion Thermal Mass Flow Meter for Boiler & Heater Efficiency

  • Optimized natural and propane measurement for 1, 2, 3, 4 inch sch. 40 pipe sizes
  • Wide flow ranges from 0 to 42,000 scfh
  • Easily install in the field or retrofit
  • Certified for GHG measurement meeting EPA (40 CFR Part 98)
  • Boiler MACT certified for area source boilers (40 CFR 63, subpart JJJJJJ) and for major source boilers (40 CFR 63, subpart DDDDD) Learn More
InnovaMass® 240S Inline

Vortex Flow Meters

  • Highly reliable with no moving parts
  • Ideal for saturated or superheated steam, gas, and liquid
  • Flexibility with volumetric or multivariable versions
  • Multivariable for five measurements in one device
  • Energy (BTU) Monitoring for real-time monitoring of energy consumption
  • No leaks with all welded gasket-free flow body
  • Loop power option available
InnovaMass® 241S Insertion

Vortex Flow Meters

  • Insertion probe for pipes and ducts up to 72 inches (2M); Optional hot tap - no process shutdown
  • Ideal for saturated or superheated steam, gas, and liquid
  • Volumetric flow rate or mass flow
  • Multivariable for five measurements in one device
  • Energy (BTU) Monitoring for real-time monitoring of energy consumption
  • Highly reliable with no moving parts
  • Loop power option available
  • Rugged, long-lasting design for the industrial applications
TM500™

High Performance Industrial Thermal Mass Flow Meter

  • Accuracy 
    • +/- 1.0% of reading plus +/- 0.2% of full-scale – Air, Nitrogen 
    • +/- 1.5% of reading plus +/- 0.5% of full-scale – All other gases
  • Repeatability +/- 0.2% of full scale
  • Direct measurement of gas mass flow / No volume to mass calculations
  • DigiSense™ robust sensor design
  • AC or DC power 
  • Use optional Gas-Mix™ feature to easily change gas selection or create gas mixes in the field - no recal required 
  • 2-3 week delivery lead times / 1 week delivery possible
TM100™

Economical Industrial Thermal Mass Flow Meters

  • Accuracy 
    • +/- 1.0% of reading plus +/- 0.2% of full-scale – Air, Nitrogen 
    • +/- 1.5% of reading plus +/- 0.5% of full-scale – All other gases
  • Repeatability +/- 0.2% of full scale
  • Direct measurement of gas mass flow / No volume to mass calculations
  • DigiSense™ robust sensor design
  • 12 to 24 volt DC power 
  • Use optional Gas-Mix™ feature to easily change gas selection or create gas mixes in the field - no recal required  
  • 2–3-week delivery lead times / 1-week delivery possible
SmartTrak®100

Premium Digital Mass Flow Controllers and Mass Flow Meters

  • Direct mass flow with thermal technology +/- 0.5% full scale accuracy
  • True multi-gas digital mass flow controller
  • View and change every aspect of the instrument
  • Small footprint at 50 slpm ideal for OEMs
  • 10-point NIST calibration on primary standards

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