Vaisala HUMICAP HM70 - Effect of Temperature Differences in Humidity Measurements

1.2
Eect of temperature dierences in humidity
measurements
In humidity measurement and especially in calibration, it is essential that the temperature of
the pr
obe and the measurement environment are the same. Even a small temperature
dierence between the environment and the probe causes an error.
A temperature dierence of a few degrees can also cause water to condense on the sensor
surface. The HUMICAPâ sensor starts to function normally as soon as the water has
evaporated. If the condensed water is contaminated, the life span of the probe may shorten
and calibration may change.
M212070EN-B
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