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Temperature and Humidity Sensor OMC-406

Observator's Air Temperature and Humidity Sensor OMC-406 provides accurate and precise measurements of both temperature and humidity in two 4…20 mA outputs.  The temperature sensor within this probe is a Pt100 element while the principle of humidity measurement is based on a capacitive measuring device.

The OMC-406 should be mounted on a OMC-422 Natural Aspired Anti-Radiation Shield, which is a naturally ventilated, multiplated shield, designed for ambient temperature and relative humidity sensors.  The convenient size and weight of this type make it useful for a wide range of applications and it is recommended for all new installations.

Humidity
Measuring range 0 to 100% RH
Accuracy at 23°C < ± 1.5% RH between 10 to 95%
Reproducibility < ± 0.5 %RH
Hysteresis for a 4 hour cycle < 1% RH
Time constant at 23°C < 15 sec.
Temperature error ± 0.5 % RH

Temperature
Measuring range –40°C to +60°C
Accuracy < ± 0.5°C
Reproducibility < ± 0.1°C
Time constant 15 sec.
Measuring system Pt100, 1/3 DIN

Associated Products

Meteorological Display OMC-938

Multi-Functional Display OMC-934