produktheader cwd2005 dpc


  • The CWD2005 DPC (Direct Purge Certified) is a combustion calorimeter with type approvals for operation in hazardous areas (Class I, Division 2; Group B, C, D; T4). This approval is based on indoor installation in closed rooms with external energy and compressed-air supplies.

    The system complies with:

    • SGS NRTL Listed Product with USTC Certification
    • acc. UL 61010-1 3rd Ed. May 11, 2012
    • CAN/CSA C22.2 No. 61010-1-12, 3rd Ed.
    • NFPA 496, Rev. January 2013


    The measuring system is integrated in a pressurized enclosure that is flushed with compressed air and is mounted on a mounting rack.

    This CWD provides a higher accuracy and faster display times. Due to different options like support gas supply or measuring range switch the CWD2005 DPC is suitable for different kind of application.

    Typical applications are flare gas combustion, gas turbine control, and fuel control in refineries and petrochemical plants.

    • Heating and calorific value
    • Wobbe-lndex
    • Specific density
    • CARI
    • Air Requirement


Operating manual Datasheet Certificate inquiry Calibration Spare parts


The CWD2005 device series (Calorimetry, Wobbe-Index and Specific Density) comprises versions of combustion calorimeters for direct and continuous determination of gas quality from the following measurands and operands. Read more  here


UNION Instruments GmbH
Zeppelinstrasse 42
76185 Karlsruhe (Germany)
Fon +49 721 6803810
Fax +49 721 68038133

Sales Network

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Member of

PROFIBUS Nutzerorganisation e.V.
Hypos e.V.
Fachverband Biogas e.V.
Maritimes Cluster Norddeutschland e.V.
DWV German Hydrogen and Fuel Cell Association
AWT – Arbeitsgemeinschaft Wärmebehandlung + Werkstofftechnik e. V.

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