pic.1
Lock
6
RH
(89171/89191 only)
The capacitive humidity sensor is built
in the center of the vane to measure air
flow relative humidity and is used for
calculating dew point and wet bulb
temperatures.
Press to switch to RH display. It
shows measured RH readings on the
upper display. And it is also possible to
display with RH offset. Go to Setup
mode (see page 9, P3.0) and input
offset value, then the displayed readings
will be the measured data with offset.
To measure air volume with use of an
airflow cone. Just plug on the cone and
the meter will automatically recognize
it and shows a on the display(Fig.C).
Then the meter will calculate the air
volume by the default dimensions
despite of any AREA value is input.
Note:
Be sure the airflow cone is well mounted
and locked tight. (See pic.1)
