38
6
Commissioning
6.4.1
Offset Calibration
Before offset calibration, check whether Rki O
2
value is equivalent to 20
Otherwise, proceed as described in chapter
6.3.3 Response of the Internal Resistance Reg-
Also check the probe voltage U-O
2
. It must be in the range of +10
...
-20
mV.
To perform an offset calibration, the probe must be located in the ambient air and should run
for at least 30 minutes in a fault-free measuring mode.
No access level is required!
NOTICE
In case of the KS1D-HT (type 656R2015), the offset calibration can also be performed in an
installed state whilst combustion is running. For this purpose, air (dry and oil-free air, instru-
ment air or ambient air) must be fed at connection 10 with a volume of 40
...
60
l/h for the du-
ration of the calibration.
Activate maintenance!
In the MAIN MENU, select
for the cali-
bration of the probe.
In PROBE CALIBRATION, select
for the
offset calibration.