Kentix MultiSensors have integrated temperature sensors. Depending on the MultiSensor type, the temperature measurement is influenced by the intrinsic heat of the device. This mainly concerns the MultiSensors with network connection, i.e. MultiSensor-LAN or MultiSensor-TI. For the MultiSensors with radio and battery operation, the effect of intrinsic heat is negligible. In order to keep the influence of the intrinsic heat as low as possible, the measurement is corrected by the software on the one hand and minimized by the possibility of calibration on the other hand. For the best possible measurement, we recommend calibrating the sensor at the final mounting and installation location.
Calibration of the room temperature measurement
Kentix MultiSensors record all important environmental values of a room, including the room temperature. In order to achieve the most accurate temperature and alarm triggering when the room temperature exceeds the limit, it is recommended to calibrate the temperature measurement. This is especially necessary for sensors with Ethernet (PoE) connection, since a certain intrinsic heat falsifies the measurement. For MultiSensors with radio and battery supply, the influence of the intrinsic heat is not present.
In order to nevertheless obtain a good measurement result with comprehensible values in the event of an alarm, the MultiSensor should be calibrated to the respective installation location after installation.
For this purpose, the temperature in the immediate vicinity (approx. 5-10 cm distance) of the MultiSensor must be measured comparatively with an accurate room thermometer. If there is a deviation in temperature between the MultiSensor and the thermometer, the temperature value can be corrected. This is done by entering the determined temperature difference between MultiSensor and room air thermometer as correction offset into the KentixONE software. The correction has a direct influence on the measurement of the relative humidity as well as the calculation of the dew point of the MultiSensor.
Perform calibration as follows:
|Install MultiSensor at the destination.||The position and orientation of the sensor should not be changed afterwards.|
Keep the following in mind:
– Mounting with X air opening downwards
– Do not mount in air stream
– Ventilation vent openings of the sensor must be free
|Perform configuration of the MultiSensor with Kentix ONE.|
|Earliest 30 minutes after startup|
match the temperature of the MultiSensor with the room temperature.
|To do this, measure the temperature with an external reference thermometer in the immediate vicinity, approx. 5-10 cm from the MultiSensor. It should be noted that this thermometer also acclimatizes to the room and displays the correct room temperature only after a few minutes.|
|If a difference between the MultiSensor and the thermometer is detected, this can be entered in the “Offset” field in the KentixONE configuration of the MultiSensor. After saving, the sensor then provides the corrected measured value.||The offset can only be specified by whole degrees, i.e. without decimal places.|
This results in an accuracy for the temperature of +/- 0.5 degrees.