IN-E-HL20-V1_16
Rotronic AG
Bassersdorf, Switzerland
Document code
Unit
HygroLog HL20 and HL21 data logger:
User Guide
Instruction Manual
Document Type
Page
20
of 23
Document title
5.2 Dew point accuracy
The HL20 can be configured to calculate either the dew point or frost point based on the
measurement of relative humidity and temperature. The accuracy of this conversion varies,
depending on the humidity and temperature conditions as shown in the graph below:
Example
: at a temperature of 20 ˚C, a dew point value of -37 ˚C is measured with an accuracy of
± 1.0 ˚C or better.
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IN-E-HL20-V1_16
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