ABB ACX Commissioning Instruction page 8

Safety Tips for Handling Electronic Measurement Devices
Protective Lead
Connection
Risks of a Disconnected
Protective Lead
Correct Operating
Voltage
Risks Involved in
Opening the Covers
Risks Involved in
Working with an Open
Analyzer System
Charged Capacitors
Use of Proper Fuses
When safe operation
can no longer be
assured ...
8
The protective lead should be attached to the protective lead connector before any
other connection is made.
The analyzer system can be hazardous if the protective lead is interrupted inside or
outside the analyzer cabinet or if the protective lead is disconnected.
Be sure the analyzer system voltage setting matches the line voltage before
connecting the power supply.
Current-bearing components can be exposed when covers or parts are removed, even
if this can be done without tools. Current can be present at some connection points.
The analyzer system must be disconnected from all power sources before being
opened for any work. All work on an analyzer system that is open and connected to
power should only be performed by trained personnel who are familiar with the risks
involved.
The capacitors in the analyzer system can retain their charge even when it is
disconnected from all power sources.
Only fuses of the specified type and rated current should be used as replacements.
Never use patched fuses. Do not short-circuit the fuse holder contacts.
If it is apparent that safe operation is no longer possible, the analyzer system should
be taken out of operation and secured against unauthorized use.
The possibility of safe operation is excluded:
•
if the analyzer system is visibly damaged,
•
if the analyzer system no longer operates,
•
after prolonged storage under adverse conditions,
•
after severe transport stresses.
ACX Analyzer System Commissioning Instruction CI/ACX-EN Rev. D