CO2 Welding Gas Analyzer

CO2 Welding Gas Analyzer
Regular price $8,999.00

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The CM-650 Welding Gas Analyzer is designed to indicate correct CO2 concentrations of welding gas mixtures. This device features two standard 1/4 inch NPT inlet ports, to allow the user to monitor the concentration of the gases during standard operations.

The Welding Gas Analyzer is an ideal solution for welders because it is uniquely structured, industrially designed, and conveniently operable. In addition, the CM-650 comes with all of the necessary fittings for connection between the analyzer and the welding gas mixtures.

Calibration is also carried out on every unit for the specified application prior to shipping.

The CM-650 is most commonly used in applications where it is desirable to analyze a two-gas mixture. These environments include welding shacks, caddy's, or anywhere welding shield gases are utilized


  • Large LCD Display for Clear Visual Indication of gas concentrations
  • Green / Red visual indicators for easy understanding of gas being used in spec
  • 2 gas inlet ports to check C25 and C15 gases simultaneously
  • User-configurable gas blends available upon request
  • Built-in flow @ 1 LPM
  • Standard fittings for easy connection
  • Stability for span calibration
  • Data logged onboard retrieved from USB port
  • Steel-backed plate for easy panel or wall mounting
  • Rugged outdoor enclosure


    • CM-650 - CO2 Welding Gas Analyzer


    • CO2 Measurement range: 0-100%
    • CO2 Measurement: NDIR 100% CO2
    • Accuracy 100% Range: ±300 ppm +/- 5% of reading @ STP
    • Operating Temperature: 0°C-50°C (32°F-122F°)
    • Calibration: Span Calibration 15% or 25%
    • Target Gas Ranges: Port 1: 22.5%-27.5% and Port 2: 12.5%-17.5%
    • Gas Concentrations: Custom Gas Concentrations available
    • Measurements: Requires 1 liter per minute of constant flow per channel
    • Resolution: 0.1%
    • Alarm Relays: 3
    • Dimensions: 16 x 10 x 6 in (406.4 x 254 x 152.4 mm)
    • Sensor Life Expectancy: >5 years
    • Weight: 30 lbs

    Electrical and Mechanical

    • Power Supply: 24VDC Hardwired
    • Power Consumption: 3Watts
    • Peak Current: 33mA
    • Data Sheets

    • Manuals

    • Technical Documents

    • Videos

    • Additional Resources

    Customer Reviews

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    "Easy to install, easy to set up, and easy calibration - just what I was looking for."

    - Phillip Farrar
    Water Plant Superintendent

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