Mela® humidity sensors should be mounted at a location representative of the climate measurement within the room, system, or device. Avoid installation near radiators, windows, or exterior walls. The specified minimum air velocities and the load at the I-output, adjusted to the operating voltage, should be observed. Deviations from these parameters can lead to additional measurement errors due to self-heating. The sensor's mounting position is arbitrary. However, it should be mounted in such a way as to prevent water ingress. Condensation and splashing water will not damage the sensor, but will lead to inaccurate measurements until the filter is completely dry. To maintain interference immunity according to EN 61326-2-3 during operation, we recommend using a shielded cable to connect the sensors and properly installing it in the sensor's supplied cable socket. The protective filters should only be carefully unscrewed for functional testing with the humidity standard. Care must be taken to avoid touching the highly sensitive sensor element. If necessary, dirty filters can be washed out when unscrewed. When screwing the sensor back on, ensure it is completely dry before it will measure correctly again. Certain sensors can be cleaned entirely with distilled water. We recommend using the wall bracket or mounting plate for installation. The Mela® humidity standard is suitable for simple functional testing.
