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CO2 Welding Gas Analyzer

CO2 Welding Gas Analyzer - CO2 Meter
Regular price $8,999.00

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The CM-650 Welding Gas Analyzer is designed for real-time analysis of 2-gas mixtures  or 2 different gas concentrations for welding shield gases. 

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 cylinders.

The device also has built-in data logging with files downloaded via USB to document the correct weld gas mixture was used during production.

Calibration is completed on every unit for the specified application and gases prior to shipping.


  • 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

  • Case Studies

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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