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2.1.
2.2.
2.2.1.
2.2.2,
2.2.3.
INSTALLATION
INSTRUCTIONS
INITIAL INSPECTION
SAFETY INSTRUCTIONS
Maintenance and repair
Failure and excessive stress:
—
shows physical damage
—
does not function anymore
--
is stressed beyond the tolerable limits (e.g. during storage and transportation)
Earthing (grounding)
The external contacts of the BNC sockets musi not be used to connect a protective conductor.
connection
of the protective earth terminal, is likely to make the instrument dange-
rous. Intentional interruption is prohibited.
Connections
The circuit earth potential is applied to the external contacts of the BNC sockets and is connected to
the cabinet by means of parallel-connected capacitor and resistor. By this means hum loops are avoided
and a clear HF earthing is obtained.
lf the circuit earth potential
in a measurement set-up is different from the protective earth potential,
it must be noticed,
—
that the BNC sockets can be touched and that it must not be live, see the safety regulations on the
subject (VDE 0411),
—
that all sockets marked with the sign L are internally interconnected.
11
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