ABB SCK - Page 79

42/23-81 EN Rev. 4 System Manual SCK Gas Sampling System 79
Danger Where / in what situa-
tion does the danger
arise?
Preventive action
Risk of crushing due
to moving gas sam-
pling probe
In the travel area of the
retractor when the probe
moves in or out. This is
the case in the following
situations:
 at unforeseeable
times during automat-
ic mode
 in the event of the
following errors in au-
tomatic mode:
 failure or interruption
of the power supply
 failure of the com-
pressed-air supply
 failure of the control
system
 when manually start-
ing probe travel
 when actuating the
service switch
 when opening the
protective installation
securing the danger
area around the re-
tractor
 Press the service switch
before performing any work
on the gas sampling sys-
tem.
 Additionally press the
EMERGENCY-STOP
switch before working on
the retractor.
 Do not enter the danger
area around the retractor
until it is at standstill and
the warning lamps and
buzzer are off.
 Never stand in the danger
area around the retractor
when the protective instal-
lation is closed.
 When the warning lamps
light up or the earning
buzzer buzzes, leave the
danger area around the
probe retractor immediately
as the probe is about to
move at any moment.
 Press the EMERGENCY-
STOP switch immediately if
anyone is still in the danger
area around the retractor
after the warning lamps
light up or the warning
buzzer buzzes.
Danger due to cur-
rent-carrying parts
When working on elec-
tric components
 Only specialized electrical
personnel may work on the
electrical system.
 Disconnect the gas sam-
pling system from the pow-
er supply before working on
other electric components.
 Observe national regula-
tions pertaining to electrical
equipment.