User Manual

E-M-HF62-V1_11
Rotronic AG
Bassersdorf, Switzerland
Document code Unit
Instruction Manual
Document Type
HygroFlex HF62 Humidity Temperature
Transmitters: User Guide
Document title
Page
6 of 27
© 2008; Rotronic AG E-M-HF62-V1_11
2.2 Mechanical configurations and dimensions
2.3 Display and keypad option
The upper line of the LC display corresponds to relative humidity
or dew / frost point and the bottom line corresponds to the
temperature measured by the Pt100 RTD used to provide a
compensation for the effect of temperature on the humidity
sensor.
It is important to note the following:
o The HF62 uses a separate circuit to generate the
temperature analog signal. The temperature measured by
this circuit is not shown on the LC display
o The LC display works only when the HF62 humidity
measuring circuit is powered and the output loop of this
circuit is closed