DOL 51 ammonia sensor for airscrubbers

Manufacturer item no.: 140312

The DOL 51 is an ammonia sensor specifically designed for continuous measurement of ammonia concentration (NH3) in high humidity applications, expanding the capabilities of the award-winning DOL 53.

Survives even the toughest conditions

The innovative design of the DOL 51 allows the operation of this sensor even under harsh conditions with an extremely high humidity of 95 - 100%, e.g. in animal stables. Air is directed to the meter inlet through a heated air duct to prevent condensation. Like all sensors from dol-sensors, the DOL 51 has also been extensively tested and has proven to have a long service life without the need for calibration.

Precise ammonia measurements

The DOL 51 provides accurate ammonia measurements in concentrations up to 50 ppm and has negligible cross-sensitivity to other gases. The DOL 51 is mounted directly in the air flow without the need for additional hoses or pumps.


TECHNICAL DATA

    Supply voltage: nominal voltage 24 V (22 V to 26 V DC); DC
    Current consumption: <200mA
    Signal transmission to the evaluation unit: 0 - 10 V and 4 - 20 mA corresponds to 0 to 50 ppm NH3
    Measuring range: 0 to 50 ppm NH3
    Signal transmission resolution: 0.2 V/ppm NH3, 0.32 mA/ppm
    Accuracy: 1.5 ppm or ±10% of reading
    Response time T50: ≤30 seconds
    Long-term drift: < ±10% of the measured value / year
    Cable type: 5-adri, 6 m
    Ambient temperature (operation): 0 °C to +50 °C
    Ambient Humidity (Operating) :15% to 100% RH
    Air pressure (operating): 700 hPa to 1300 hPa
    Ambient temperature (Larger): -20 °C to +60 °C
    Dimensions: H x W 155mm x 75mm
    Material housing, DOL 53: PA
    Protection IP65

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