ABB SCK - Page 60

60 Operating instruction SCK Gas Sampling System OI/SCK-EN Rev. E
The protective installations have the following function:
No.
Designation and
photo
Location
Function
1
EMERGENCY-STOP
switch
Pneumatic box
of the retractor
Interrupts movement of
the gas sampling probe.
The gas sampling probe
can only move again when
the EMERGENCY-STOP
switch is unlocked and
reset by pressing the
service switch.
2
Covers

Retractor
 Cooling
module: ro-
tor
 Cooling
module:
Terminal
box for elec-
trical con-
nections
Protection from inserting
hand into the system.
3
Warning lamps
Retractor ter-
minal box
Warn about probe move-
ment.
The warning lamps flash
in the following situa-
tions:
 Automatic mode: ap-
prox. 20 seconds be-
fore probe movement
 Manual mode: immedi-
ately after pressing the
"Retract probe" button
 Error: immediately
before probe retrac-
tion
Protective
installations