Michell Instruments CDP301

Condumax Dew-Point Tester

Envent is working in partnership with Michell Instruments to provide a more comprehensive product offering of online process instruments designed specifically for measuring moisture in Natural Gas. The CDP301 dew-point tester offers the user a 21st Century advancement of the Bureau of Mines Dew Point Tester. The CDP301 is a manual, visual dew-point tester for natural gas processing and transmission applications. It is fully self-contained within a lightweight alloy explosion-proof enclosure, easy to hand-carry by a single person, and is powered solely by the internal rechargeable battery.

  • Features
    • Fundamental cooled-/chilled-mirror dew-point measurement principle
    • High-definition color LC display
    • Visual identification of both water and hydrocarbon dew point
    • Automatic mirror cooling rate control according to ISO 6327 and ASTM D1142 test methods for natural-gas dew-point measurements
    • Self-contained, rechargeable battery powered
    • Exd certified IECEx, ATEX, UKCA Zone 1, Class I Division 1/Zone 1, IIB+H2 T3
    • 100 barg operating pressure rating
    • Greater than 60 ̊C measurement depression range (up to 100 barg pressure)
    • Better than +/-0.5 ̊C accuracy of mirror surface measurement
  • Downloads
  • Certification

    For any certification documentation please make a request through the contact us form. 

  • Applications
    • Natural gas processing
    • Transmission pipeline checking
    • Sour natural gas
    • Validation of online analyzers
  • Specifications

    Hydrocarbon & Water Dew-Point Measurement

    Measurement Technique Chilled mirror
    Sensor Cooling Automated cooling ramp rate selectable according to ASTM D1142 or ISO6327 measurement practice
    Measurement Range Depression range up to Δ T >65 °C
    Accuracy ±0.5°C 
    Resolution 0.1 °C, 0.1 °F
    Sample Flow 0.25...0.5 Nl/min

    Pressure Measurements HCDP & WDP

    Units MPa, barg, psig
    Resolution 0.1 MPa, 0.1 barg, 1 psig
    Accuracy ±0.25% FS

    Dew-Point Tester

    Operating Pressure Up to 100 barg
    Sample Supply Pressure 20...100 barg
    Enclosure Cast LM25 Alloy IP64/NEMA4X
    Gas Connections 1⁄4”NPT
    Operating Environment -30 °C...+50 °C max 95 %rh
    Power Supply Rechargeable Li-ion battery, up to 8 hours life from full charge
    Weight 8 kg
    Display & User Interface High-definition 5.7” full-color display, operated by 5 push buttons
    Logging/Image Capture 2GB onboard data storage
    Hazardous Area Certification ATEX/UKCA: II 2 G Ex db ia IIB+H2 T3 Gb
    (Tamb -30 °C...+50 °C)
    IECEx: Ex db ia IIB+H2 T3 Gb (Tamb -30 °C...+50 °C)
    cQPSus: Class I, Division 1, Gr BCD T3
    (Tamb -25 °C...+50 °C)
    Class I, Zone 1
    AEx db ia IIB+H2 T3 Gb (Tamb -30 °C...+50 °C)
    Ex db ia IIB+H2 T3 Gb (Tamb -30 °C...+50 °C)
    Data Transfer USB Standard B connector for log/image transfer (safe area only)
    Mounting 5/8 inch 11 UNC thread suitable for Tripod mount. Optional bench top mount.


Contact us to learn more about this product

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