Installation- And Safety Instructions; Maintenance And Repair - Philips PM 5330 Handbuch

PM 5330 INSTALLATION- AND SAFETY INSTRUCTIONS
GB
1-1
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INSTALLATION- AND SAFETY INSTRUCTIONS
1.1
SAFETY INSTRUCTIONS
Upon delivery from the factory the instrument complies with the required safety regulations,
see Chapter 4. To maintain this condition and to ensure safe operation, the instructions below
must carefully be followed.
1.1.1 Maintenance and Repair
Failure and excessive stress:
If the instrument is suspected of being unsafe, take it out of operation permanently.
This is the case when the instrument
-
shows physical damage
- does not function anymore
-
is stressed beyond the tolerable limits (e.g. during storage and transportation) .
Dismantling the Instrument:
When removing covers or other parts by means of tools, live parts or terminals could be ex-
posed. Before opening the instrument, disconnect it from all power sources.
If the open live instrument needs calibration, maintenance or repair, it must be performed
only by trained personnel aware of the risks. After disconnection of all power sources, the ca-
pacitors in the instrument may remain charged for some seconds.
1.1.2
Earthing (Grounding}
Before any other connection is made the instrument shall be connected to a protective earth
conductor via the three-core mains cable. The mains plug shall be inserted only into a socket
outlet provided with a protective earth contact. The protective action shall not be negated by
the use of an extension cord without protective conductor.
WARNING: Any interruption of the protective conductor inside or outside the instru-
ment, or disconnection of the protective earth terminal, is likely to make
the instrument dangerous. Intentional interruption is prohibited.
The circuit earth potential applied to the external contacts of the BNC sockets and is
connected to the cabinet. The external contacts of the BNC sockets must not be used to con-
nect aprotective conductor.