humimeter RH5 & RH5.1 Operating Manual
Page 40
8. Carefully place the RH5 or RH5.1 device with calibration equipment on a table.
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Leave the calibration equipment mounted on the sword probe until explicitly
stated otherwise.
ATTENTION
Damage to the sensor
By tilting or turning the device with mounted calibration equipment the sensor
can be destroyed.
►
Only lift the device with mounted calibration equipment straight up.
12.2 Determining the deviation
1. Let the sensor adjust to the humidity standard for at least 2 hours.
2. Then note down the measured relative humidity and temperature.
3. At ideal temperature conditions (device, calibration equipment and humidity
standard have a temperature of 23 °C), the value printed on the humidity stan-
dard can be used as reference value.
4. In case of deviation from the factory temperature (23.0 °C), the real humidity
value must first be determined according to the table below:
Temperature
Humidity standards
35%
50%
80%
20 °C
34.6%
49.8%
79.9%
21 °C
34.8%
49.8%
80.0%
22 °C
34.9%
49.9%
80.0%
23 °C
35.0%
50.0%
80.0%
24 °C
35.1%
50.1%
80.0%
25 °C
35.2%
50.2%
80.0%
26 °C
35.4%
50.2%
80.1%
5. Note down the real humidity value.
6. Compare the noted displayed measuring value with the real humidity value.
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If the deviation revealed is below 1.5 % relative humidity, it is not recommended
to recalibrate. In this case, remove the calibration equipment from the sword