ABB ProKiln GAC400 Operating Instruction page 20

20 ProKiln GAC400 PROBE GAS SAMPLING SYSTEM | OI/GAC400-EN REV. A
... 3 Design and function
... Components
Controls on the probe retractor
There are additional controls on the retractor:
Figure 6: Controls on the probe retractor
Pos. Designation
1
Warning tower
2
Emergency stop
3
Manual push buttons in and out
4
Safety breaker
Flange Shutter
To protect people and equipment from process over-pressure exposure and to limit false ambient air to enter the process, the flange
opening is closed by a shutter when the probe is retracted to its service position.
The flange shutter does not close during regular retraction / extension for cleaning the outside of the probe. The shutter is moved
either by an automatic pneumatic drive flange shutter (optional) or by manual actuation.
Supply lines
The pneumatic/electric supply is connected at a central transition point. All required internal line connections are included and pre-
installed in the probe retractor. Connection cables between units are not supplied with the system.
1
3
Function
• Audible warning prior and during movement of probe
• Flashlight warning prior and during movement of probe (White)
• Indication of system alarm (Red)
• Indication of system maintenance request (Yellow)
• Indication of system in operation (Green)
• Halts all probe movements
• Halts all probe cleaning by air
Manual operation of probe movement only active if the probe is in manual operation
• Safety breaker for probe motor
• When off, the main power to the motor is off and the probe is not able to move
2
4