8 Operation
8.5.1 Dew point setting
Analog output
Select the physical moisture unit and then set the
scaling of the analog output.
The options for the moisture unit include ppm (V),
g/m
3
, mg/m
3
, and the atmospheric dew point. After
you select a moisture unit, the corresponding standard
scaling values are displayed. Adjust the scaling values
if needed.
Based on this setting, the dew point sensor can
convert the moisture values from digit signal to 4 ... 20
mA signal, and then transfer the analog signal to a PLC
or SCADA system.
Dew point
cali.
Dew point sensors can be adjusted at one point according
to a reference value. We recommend you perform this
calibration only below the -40 °C Td dew point and by
using a reliable reference.
Pressure
calibration
Applicable to the dew point sensors that have pressure
sensors integrated.
Calibrate the integrated pressure sensors.
Modbus
setting
Applicable to the dew point sensors that come with the
Modbus interface.
Set the communication parameters
20
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