Insertion Thermal Mass Flow Meters for Precise Data (2024)

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For Those Who Demand Precision Data

Are you in an industry that demands precise data? Look no further than Sierra’s insertion flow meters for thermal mass measurement. Browse our insertion-type thermal flow mass meters below or contact us today to discuss your needs and we’ll find you the best flow meter for your exact industry or application.

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BioTrakTM 645S/745S

Wastewater Thermal Mass Flow Meter

  • Direct mass flow measurement maintains precise control of aeration, digestion, and cogeneration
  • Microprocessor based, field-programmable electronics
  • Wide measurement range up to 1000:1 turndown; 100:1 typical
  • DigiSense sensor design / Swivel probe ±180° into four positions
  • BioSelect™ menu provides field selectable air, methane, and digester gas
  • BioView™ software provides access to meter data / Configure meter settings in field
  • BioCal™ verifies calibration within five minutes

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BioTrak 645S/745S BioView Software

Configuration and Data Logging Software

  • Quick access to all configuration parameters with pop-up windows and pull-down menus
  • Selection of measurement units, flow and temperature ranges, and more
  • BioSelect™ menu provides field selectable air, methane, and digester gas
  • BioCal™ Calibration Validation provides quick and easy way to field validate calibration
  • Set alarms; display alarm codes
  • Data logging to an Excel® spreadsheet

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

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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 accuracyDownload 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 technologiesLearn more >
  • Meet EPA rule 40 CFR 63 for flare gas measurement at ultra-low flows down sfps (0.03 smps) with QuadraTherm® qMix RealTimeFlare Measurement System (FMS)

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QuadraTherm® 780i

Highest Air/Gas Mass Flow Measurement Accuracy in Industry

  • Achievethe highestaccuracy +/- 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) withQuadraTherm® qMix RealTimeFlare MeasurementSystem (FMS)

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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

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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

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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
  • Validatein the field for easy in-situ calibration
  • Backed by lifetime sensor warranty

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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

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BioTrak™ 645i/745i

Wastewater Dedicated Thermal Mass Flow Meter

  • Field-Selectable Gases-air, methane, digester gas
  • Direct mass flow measurement maintains precise control of aeration, digestion, and cogeneration
  • Accuracy: Air: +/-1% of reading +/-0.2% of full scale - Other gases: +/-1.5% of reading +/-0.5% full scale
  • Insertion and inline versions
  • AC or DC power input available
  • Optional hot top packing gland and retractor
  • Integral and remote electronic configurations available
  • Wide measurement range up to 1000:1 turndown; 100:1 typical
  • BioCal Calibration Validation within five minutes

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FastFlo™ 620S

Fast-Response Insertion Thermal Mass Air Flow Sensor

  • Increase efficiency with fast response time within 200 milliseconds
  • Optimized air, nitrogen, and inert gas 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

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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.

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FlatTrak™ 780S-UHP

Industry-Choice For Bulk High Purity Gas Custody Transfer To Semicon Fabs

  • Optimized for bulk ultra high purity (UHP) gas custody transfer
  • Direct mass flow measurement
  • No moving parts, 100:1 turndown, low pressure drop
  • Reduce straight-run requirements with built-in flow conditioning
  • Validate in the field for easy in-situ calibration

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qMix Gas Mixing Feature

Field-Update For Gas Composition Changes

  • Powerful, gas mixing software to createcustom 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

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Measure Flare Gas in Real Time

QuadraTherm® qMix RealTime
Flare Measurement System

  • Meet EPA rule 40 CFR 63-measure flare gas down to 0.1 sfps (0.03 smps) where ultrasonic flow meters can't operate
  • Handles upset conditions at ultra-high flows with wide 1000:1 turndown
  • Easy to install with current ultrasonic flow meters-no process shutdown
  • Use qMix RealTime App to connect, read, and update new flare gas composition from a GC-real time, no recalibration needed
  • Set update frequency by time or by percentage change in the gas composition
  • Get flow and composition trend analysis, flow alarming and triggers

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Insertion Thermal Mass Flow Meters for Precise Data (2024)
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