ABB ProKiln GAC400 Operating Instruction page 113

ProKiln GAC400 PROBE GAS SAMPLING SYSTEM | OI/GAC400-EN REV. A
Instructions
1. Operation/Service Mode -50S15 switch must be in the
Service Mode
2. Switch system to manual mode on the HMI (if this has not
already been done).
Path: Home ► Manual
3. Retract gas sampling probe out of the kiln.
Path: Menu ► Probe Position ► GO S0
WARNING! The probe moves out of the kiln. Do not stand in
the area of travel of the probe or probe buggy until the probe
has reached its end position.
4. When working on the retractor and gas sampling probe,
additionally actuate the EMERGENCY-STOP -15S7 or -150S3
switch for reasons of safety and turn the Safety switch -
101S2 at the probe rear cabinet to OFF position, to prevent
any movement of the probe. This switch can also be secured
with a padlock. Additionally, secure that the flange shutter
remains closed.
5. Manually lock the flange shutter.
6. Mechanical cleaning outside:
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
damage to the 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, lye, etc.) for cleaning.
7. Cleaning/inspection of center pipe:
Follow opening instructions for Inspection/clean-out
through center pipe inspection port on page 114.
Inspection of the center pipe can only be done while the
probe is outside of the kiln and never in position S3.
If a clean free view is seen through the center pipe inspection
port no further action is needed.
If no clean and free view can be seen, use a pipe connected to
compressed air at 1-2 bar to clean it out. Use full protective
clothing as hot air and dust can come backwards during
cleaning with air.
In severe cases a drill mounted on a long rod and low rotation
speed can be used to remove material.
Note: The probe must only be cleaned mechanically. Do not
use chemicals (acids, lye, etc.) for cleaning.
8. Manually unlock the flange shutter.
9. Unlock EMERGENCY STOP switch -15S7 or -150S3 by turning
the back ring in the direction of the arrow. No movement
must be seen.
10. Push the blue button Emergency Reset -15SB/-15P12 to allow
new operation of the probe retractor and air blaster probe
blow-back.
11. Insert gas sampling probe into the kiln.
Path: Main ► Probe Position ► Go S3
WARNING! Gas sampling probe moves into the kiln. Do not
stand in the area of travel of the gas sampling probe or
probe buggy until the probe is completely inserted into the
kiln and the warning lamps/sounds go out.
12. Switch system to Auto mode on the HMI
Path: Home ► Auto
13. Operation/Service Mode -50S15 switch must be switch back
to Operation Mode
113