ABB SCK - Checking Protective Installations

OI/SCK
-EN Rev. E Operating instruction SCK Gas Sampling System 169
Checking protective installations
 at least once a year
EMERGENCY STOP switch: The EMERGENCY STOP switch -J75 should be
checked after shutting down the kiln if possible, as the test procedure disa-
bles all monitoring mechanisms. If it is necessary to check during operation,
the retracting probe retractor must be max. one meter from the rear end
position when you actuate the EMERGENCY STOP switch -J75 in order to
prevent uncontrolled heat-up of the probe tip if an error occurs at the same
time.
Observe company regulations with regard to maintenance intervals.
Always take the following safety measures when performing this work:
 Wear the general protective equipment.
 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 following conditions must be met:
 System is in operation.
 Gas sampling probe is inserted into the kiln.
 Service switch is in the OFF position.
Maintenance interval
Safety
measures
Requirements