
Servicing
Instruction Manual AquaMaster
12745E/4
81
WORKSTEP
ADDITIONAL INFO / IMAGES
4.
4.1: Wait until the temperature (1) is stable.
Recalibration is only made when the tempera-
ture is stable. This can take slightly longer on
the oxygen sensor.
The oxygen sensor is calibrated to the
oxygen content of the ambient air. This is
20.95% by volume. The sensor switches the
unit automatically to “by volume”.
When exiting the menu, the value changes
back to the original unit.
Pressing the
Nom. val.
button (2) opens a
numeric input field where the nominal value
can be adjusted.
4.2: Enter the current ambient air pressure (3).
4.3: Press the
initiate
button. Recalibration
starts.
If the adjustment was successful, this is confir-
med with
Adjustment OK
. This completes the
adjustment.
If the adjustment was not successful, the
following message may appear:
running…
Cause: Values not yet stable.
If the displayed quality is
between 100 and 35 following
calibration, then this is due to
aging of the sensor.
If the calibration was incorrect,
then a quality value of 30 is dis-
played. The calibration must be
repeated.
5.
Install the sensor in the measuring cell block
according to Section 8.1.3.
8.1.8
Replace sensors configured by SIGRIST
WORKSTEP
ADDITIONAL INFO / IMAGES
1.
Remove old sensor from the measuring cell
block in accordance with Section 8.1.2.
2.
Install new sensor in accordance with Section
8.1.3.
3.
Put the system into operation again.