R
9
3.5 THE SENSORS
The sensors for humidity, air temperature and surface temperature are
located at the top of the gauge.
Note: The surface temperature sensor is flexibly mounted. This will reduce
the risk of damage if the gauge is dropped.
FOR ACCURATE READINGS
• Do not obstruct airflow through the holes in the casing around the
humidity and air temperature sensors.
• Keep your fingers away from the holes - the heat from your body may
affect readings.
• Allow the gauge some time (approximately 20 minutes) to acclimatise
once it is brought from a cold environment into a warm place or vice
versa.
TO AVOID DAMAGE
• When measuring surface temperature DO NOT USE EXCESSIVE
FORCE! A light contact between the probe and the surface is sufficient.
Using force does not increase the measuring speed or improve the
accuracy of the measurement, but it does increase wear and/or damage
the sensor tip.
• Do not drag the surface temperature probe over the surface.
• Keep the gauge away from paint dust and dirt as much as possible as
these can affect the long term accuracy of the humidity sensor.
Surface
temperature
Air temperature
and humidity
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