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GfG ZD 21 Fixed Gas Transmitter, Base Unit (no sensor) - 2210009E

GfG ZD 21 Fixed Gas Transmitter, Base Unit (no sensor) - 2210009E

Item #



    2210009E ZD 21 Fixed Gas Transmitter, Base Unit (no sensor) by GfG

    A particularly long sensor life makes the ZD 21 a low cost transmitter for oxygen monitoring. The expected lifetime of the sensor is 5 years in continuous operation. A robust aluminum casing protects the sensor and the circuitry from impacts, splashed water, and dirt.

    The ZD 21 is an "intelligent" transmitter. The comprehensive electronics allow for easy operation and maintenance and also increase operational safety and accuracy. In less than 2 seconds the ZD 21 responds to oxygen escaping from a leak. This extremely short response time allows the time to take measures to prevent considerable damage.

    • Extremely stable oxygen (O2) sensor lasts 5 years
    • Fast response
    • No influences from pressure, humidity, or temperature
    • No damage from carbon dioxide (CO2)

    Gas Oxygen (O2)
    Detection Range 0 to 25 % volume
    Detection Principle Zirconia (ZD)
    Gas Supply Diffusion
    Humidity 0 to 99 % r.h. non-condensing
    Pressure 920 to 1,100 hPA
    Cable Gland 1/2" inch conduit
    Lengths of Cable Towards Controller Up to 300 m (3x0.75 mm cable)
    More than 300 m (3x1.5 mm cable) shielded cable
    Response Time T90 less than 2 seconds
    Signal Output 0.2 to 1 mA or 4 to 20 mA
    Power Supply 10 to 30 VDC / 3 W
    Ambient Temperature -13 to +122°F / -25 to +50°C
    Expected Sensor Life Greater than 5 years
    Casing Protection IP 54
    Dimensions 3.94x3.94x2.24 inches (100x100x57 mm) (HxWxD)
    Weight .812 lbs. / .37 kg

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