-EN Rev. E Operating instruction SCK Gas Sampling System 161
Operating the service switch
The service switch puts the system into maintenance mode. If work described
in the following maintenance instructions must be performed in maintenance
mode, proceed as follows.
Always take the following safety measures when performing this work:
Wear the general protective equipment.
Before commencing any work on the gas sampling system, turn the ser-
vice switch to
ON
and secure the service switch against unauthorized
switching (with a padlock).
Additionally press the EMERGENCY-STOP switch before working on the
retractor or probe.
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
installation 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.
Explanation of safety measures:
Safety regulations for maintenance work on
page 158.
The service switch is in the
OFF
position.
Meaning
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