HD31
- 94 -
V1.6
13.3
C
ALIBRATION OF COMBINED RELATIVE HUMIDITY AND TEMPERATURE PROBES
When selecting a combined probe for calibration, you will be asked which of the two sensors
you want to calibrate. Select the sensor using
S
and
T
, then press the
F3
key (
OK
command)
to confirm.
Fig. 13.3.1: selecting the sensor to be calibrated
13.3.1
C
ALIBRATION OF THE TEMPERATURE SENSOR OF
RH/T
COMBINED PROBES
If the combined RH/T probe has a Pt100 sensor, two options are displayed:
Fig. 13.3.2: types of calibration for the temperature sensor
•
NEW TUNING
: calibrates the probe at any point within the operating range of the
probe.
•
STANDARD PT100
: sets the user calibration with the nominal values of the Pt100sensor.
Select this option if the probe is not calibrated and it is not possible to perform a new cali-
bration.
Select the type of desired calibration using
S
and
T
, then press the
F3
key (
OK
command) to
confirm.
By selecting the NEW TUNING option, the display shows the temperature value measured by
the probe. Place the probe to be calibrated, together with a reference thermometer, in a con-
stant temperature environment (
respecting the operating range of the RH probe
) and
wait for the measurement to become stable; using
S
and
T
, adjust the reading of the instru-
ment to coincide with the reading of the reference thermometer, then press the
F3
key (
OK
command) to confirm: a message appears reminding that the operation will change the probe
calibration data, select
YES
(
F3
key) to continue (or Press F1 to select NO and exit).
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