ABB SCK - Page 183

42/23-81 EN Rev. 4 System Manual SCK Gas Sampling System 183
Proceed as follows:
Step Procedure
1
Switch service switch to ON position (see Operating the service
switch on page 159), press EMERGENCY STOP switch and allow
gas sampling system to cool down.
WARNING! Risk of burning in the event of contact with the hot
probe. Do not touch the probe until it has cooled down to be-
low 50 °C.
2
Manually lock the shutter.
3
Mechanical cleaning: Remove incrustations on the probe tip by
hitting them with a chisel. The direction of impact must be parallel to
the longitudinal axis of the probe in order to prevent massive dam-
age to the gas sampling probe. The size of the tool must suit the
sampling aperture in order to prevent massive damage.
Note: The probe must only be cleaned mechanically. Do not use
chemicals (acids, lyes, etc.) for cleaning.
4
Manually unlock the shutter.
5
In controller: insert the probe.
Path: Operation ► Probe ► Probe Action ► Insert
WARNING! The probe moves into the kiln. Do not stand in the
area of travel of the probe or probe carriage.
6
In controller: launch compressed-air cleaning.
Path: Operation ►Probe ► Cleaning ► Manual Cleaning
7
In controller: retract the probe.
Path: Operation ► Probe ► Probe Action ► Retract
WARNING! The probe moves out of the kiln. Do not stand in the
area of travel of the probe or probe carriage.
8
Check sampling aperture again, repeat mechanical cleaning if
necessary.
9
Turn service switch to the OFF position, unlock the EMERGENCY
STOP switch.
10
In controller: insert the probe again.
Path: Operation ► Probe ► Probe Action ► Insert
WARNING! The probe moves into the kiln. Do not stand in the
area of travel of the probe or probe carriage.
11
In controller: wait for heat-up time until the following error messag-
es disappear:
"C. Water Return Temp. MIN"
Path: Diagnosis ► Message
12
In controller: switch gas sampling probe to AUTOMATIC mode:
Path: Operation ► Automatic on / off
Mechanical probe tip
cleaning