All Sierra Flow Products

TM500™

TM500 Thermal Mass Flow Meters | Sierra Instruments

• 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

SmartTrak^®100

SmartTrak 100 | Thermal Mass Flow Controllers

• 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

QuadraTherm^® 780i

QuadraTherm 780i | Thermal Mass Flow Meters

• 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)

TM100™

TM100 Thermal Mass Flow Meters | Sierra Instruments

• 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^® 50

SmartTrak 50 | Low-Cost Mass Flow Controllers & Flow Meters

• OEM pricing with digital high-performance
• Small footprint at 50 slpm ideal for OEMs
• 5-point NIST calibration on primary standards
• Large display to view flow information easily
• Choice of construction in aluminum or 316 stainless-steel

QuadraTherm^® 640i

QuadraTherm 640i | Thermal 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 > 
• 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)

BioTrak™ 645i/745i 

BioTrak Wastewater Thermal Mass Flow Meters | Sierra Instruments

• 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  

Multiparameter Mass Flow Meters and Controllers for Gases

d·flux Multiparameter Mass Flow Meter

• Measure and control five process variables: Mass flow, volumetric flow, temperature, pressure, and density 
• High accuracy up to +/-0.3% of user full scale +/-0.5% of measured value
• Five sensor options provide greater flexibility and economy  
• Multigas Capability: Pre-program up to 15 gases or gas mixtures  
• Monitor and control meter functions conveniently from your mobile device with free Android App (Bluetooth)  
• Flow rates up to 1508 slpm (Air) Other gases, according to conversion, Example: Up to 3120 for Hydrogen   

TM100-View Software 

TM100-View Software | Sierra Instruments

• 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

BioTrak 645S/745S BioView Software

Configuration and Data Logging Software | BioTrak Software for BioTrak Thermal Mass Meters - Sierra

• 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

RedySmart^®

RedySmart | Thermal Mass Flow Meters & Mass Controllers

• Ultimate OEM MFC-modular, compact footprint, connect power cable & communication system
• MEMS sensor stability- Lifetime no-drift sensor warranty
• Direct mass flow with thermal technology- no temp or pressure compensation
• Precision electromagnetic valve control
• Competitive OEM pricing- Cost-effective solutions

InnovaSonic® 210 Ultrasonic Portable Flow Meter

Clamp-On Ultrasonic Portable Flow Meter - InnovaSonic 210

• Easy setup in five minutes or less
• Portable clamp-on transducers measure liquid flows nearly anywhere
• Save time with no pipe cutting or process shutdown
• Boiler MACT certified for area source boilers (40 CFR 63, subpart JJJJJJ) and for major source boilers (40 CFR 63, subpart DDDDD) Learn More

RedyCompact^®

Compact Flow Meters | Sierra Instruments

• Direct Mass Flow, not volumetric, for highest accuracy & repeatability
• High-precision MEMS technology: No-drift (lifetime warranty) CMOS sensor
• Compact Footprint for easy drop in replacement to VA meters
• Regulate flow with high resolution manual setpoint
• Battery operated, with large, easy-to-use touchscreen display, automatic screen adjustment (0°/90°/180°/270°)

Measure Flare Gas in Real Time

Flare Measurement System | Sierra Instruments

• 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

HART

HART | Communication Protocol for Digital Flow Meters

• Upgrade your older analog plant with digital smart devices
• Transmit digital information across analog wires
• Bi-directional between intelligent field instruments
• Power to integrate, monitor and control

CalTrak^®XL

CalTrak XL | Gas Flow Calibrator | Sierra Instruments

• Begin to calibrate up to 1500 slpm
• Replace bell provers or sonic nozzle arrays
• Bring ± 0.15% of reading accuracy to the factory floor
• Quick, easy-to-use, automatic data capture 
• Results directly traceable to NIST

BioTrak^TM 645S/745S

BioTrak 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

CalTrak^®800

CalTrak 800 | Gas Flow Calibrators | Sierra Instruments

• Highest accuracy of ± 0.15% of reading gas mass flow rate
• Broad flow range from 0.5 sccm up to 100 slpm
• Quick, easy to use, automatic data capture 
• Portable and battery operated
• Results directly traceable to NIST

Flow Totalizer

QuadraTherm Multi-Gas Flow Totalizers | Sierra Instruments

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

qMix Gas Mixing Feature

qMix Gas Mixing Feature | Sierra Instruments

• 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

SteelMass^TM 640S

SteelMass 640S | Insertion Gas Mass Flow Meters

• 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

BACnet

Flow Meter Digital Communication Protocol - BACnet

• Integration into building automation networks
• Key protocol for energy usage management
• Standardized and application-independent
• National standard in more than 30 countries

FlatTrak^™ 780S

FlatTrak 780S | Inline Thermal Mass Flow Meters

• 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

RedyIndustrial

RedyIndustrial | OEM Thermal Mass Flow Meters & Controllers

• Meet industrial OEM mass flow control requirements with NEMA 6 & IP67 ratings
• ATEX Certification (Category 3 / Zone 2 & 22)
• Increase efficiency with accurate and reliable flow control
• Competitive OEM pricing- cost-effective solution
• Ideal for washdown environments
• No-drift sensor warranty

FastFlo^™ 620S

FastFlo 620S | 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
• 20,000 sfpm maximum air velocity
• Easily install in the field or retrofit

FlatTrak^™ 780S-UHP

FlatTrak 780S-UHP | Inline Thermal Mass Flow Meters

• 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

InnovaSonic^®203

InnovaSonic 203 | Ultrasonic Digital Liquid Flow Meter

• High performance at an affordable price
• Simply clamp-on outside of pipe for easy set up
• Save time with no pipe cutting or process shutdown

FlowTrak^™ (620 & 640 only)

FlowTrak | Inline Flow Conditioners | Sierra Instruments

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

Compod™ Upgrade

Compod Upgrade for SmartTrak Digital MFC | Sierra Instruments

• Upgrade new or existing SmartTrak
• Monitor functionality, faults and system upsets
• User programmable control module
• Daisy-chain multiple devices
• Make your own mini process control system

InnovaMass^® 241S Insertion

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

InnovaMass^® 240S Inline

InnovaMass 240S | Multivariable Flow Meter | Sierra Instruments

• 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

InnovaSwitch^™ Flow Switch

Precision Flow Switch for Liquids & Gases - InnovaSwitch

• Ultra-sensitive with fast response time
• Ideal for industrial pump protection
• 1-year warranty
• Unique high temperature up to +458°C

TopTrak^® 820

TopTrak 820 | Mass Flow Meters | Sierra Instruments

• Proven gas flow measurement with affordable OEM pricing
• Save money with volume discounts
• Read results easily with large tiltable display
• Easy drop-in replacement with compact size
• Available in economical nylon, stainless steel and aluminum

BoilerTrak^™ 620S-BT

BoilerTrak 620S-BT | Insertion Thermal Mass Flow Meters

• Optimized natural and propane measurement for 1, 2, 3, 4 inch sch. 40 pipe sizes
• 17,000 sfpm maximum velocity 
• 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. 

Modbus RTU

• Flexible systems integration and automation
• Establish master-slave/client-server comms
• Most widely used protocol in manufacturing
• Transfer discrete/analog I/O
• Register data between devices

Profibus DP

Profibus DP Digital Communication Protocol for Flow

• Flexible systems integration and automation
• Standardized and application-independent
• Supports fieldbus solutions for process automation
• Great for motion control and safety-related tasks