Distillation Process Analyzer DPA-4.5
Maintenance
Electrical current
DANGER
Danger of death due to electrical current
Touching voltage-conducting parts poses an
immediate life-threatening hazard. Damage to the
insulation or to individual components can cause
fatal injury.
For this reason:
– For all work on the electrical systems, switch off
the voltage and test that the circuit is voltage-
free.
In addition to the device’s power supply, all
external voltages of signal and control lines
must also be free of voltage.
– Secure the power supply against being switched
back on again.
– Do not bypass or disable any fuses. When
exchanging fuses, check that they are of the
correct type.
– Keep moisture away from voltage-conducting
parts. This could otherwise result in a short-
circuit.
Securing against being switched
on again
DANGER
Danger of death due to unauthorized restarting
During maintenance work, there is the danger that
the power supply can be switched on without
authorization. This poses a life-threatening hazard
for the persons in the danger area.
For this reason:
– Before starting work, switch off all power supplies
and secure them against being switched back on.
Replacement parts
WARNING
Risk of injury due to incorrect replacement
parts
Incorrect or defective replacement parts can result
in damage, faults or total failures as well as
impairments to safety.
For this reason:
– Only use original replacement parts from the
manufacturer.
December 2013
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