Relative Humidity (QFR9530) | The sensor acquires the relative humidity in the duct via its capacitive humidity sensing element whose electrical capacitance changes as a function of relative humidity. The electronic measuring circuit converts the sensor’s signal to a continuous 0...10 Vdc signal, corresponding to a relative humidity range of 0...100 %. |
Temperature (QFR9530 & QAR9530) | The sensor acquires the temperature in the duct via its sensing element whose electrical resistance changes as a function of the temperature. The signal is delivered to a suitable controller for further handling. |
Sensing Element, NTC 10K | Figure 3. Characteristic. |
Figure 4. Accuracy. |
Legend | R | Resistance value in Ohm |
See document A6V11937911 for more information about QFR/QAR9530.