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4.7.3 RH calibration
This procedure applies to
P37AB147, P37B147
SICRAM probes, and to
Temperature
and
Humidity
combined
SICRAM probes.
Before starting the calibration operation, you should
check
if you need a new calibration using the
saturated solutions at 75.4%RH and 33%RH: You should proceed with the calibration, only if you
find an error in one of the two above calibration points.
The calibration procedure removes the previous calibration data.
For a correct calibration of the sensor,
the first point should be 75%RH
and the second point
33%RH.
Use the arrows
▼▲
to select the
3) Calibration RH
item:
PROBE CALIBRATION
1) Calibration CO
2
2) Calibration CO
3) Calibration RH
▼▲
select
<ESC> exit/cancel
<ENTER> confirm
Confirm with ENTER. The following screen will appear:
PROBE CALIBRATION
CALIBRATION RH
1) Cal RH 75%
2) Cal RH 33%
▼▲
select
<ESC> exit/cancel
<ENTER> confirm
1.
Use the arrows
▼▲
to select the
1) RH Cal 75%
item; you will get the following page:
PROBE CALIBRATION
CALIBRATION RH
CAL RH 75%
Actual T = 22.0°C
Actual RH = 28.1%
RH 75% = 70.2%
▼▲
set
<ESC> exit/cancel
<ENTER> confirm
2.
Use the arrows
▼▲
to enter the RH 75% nominal value.
3.
Check that the salt solution container contains simultaneously:
•
Salt in solid state
•
Liquid solution and wet salt.
