Getting started
R&S
®
NGU
18
User Manual 1179.2531.02 ─ 03
connected to a protective earth conductor. The instrument is designed in compliance
with the regulations of protection class I.
For safety reasons, the instrument may only be operated with authorized safety sock-
ets. The power cable must be plugged in before signal circuits may be connected.
Never use the product if the power cable is damaged. Check regularly if the power
cables are in perfect condition. Choose suitable protective measures and installation
types to ensure that the power cable cannot be damaged and that no harm is caused
by tripping hazards or from electric shock, for instance.
Risk of electric shock
It is prohibited to disconnect the earthed protective connection inside or outside of the
instrument!
If it is assumed that a safe operation is no longer possible, the instrument must be shut
down and secured against any unintended operation.
Safe operation can no longer be assumed when:
●
Instrument shows visible damage
●
Instrument includes loose parts
●
Instrument no longer functions properly
–
After an extended period of storage under unfavorable conditions (e.g. out-
doors or in damp rooms)
–
After rough handling during transport (e.g. packaging that does not meet the
minimum requirements by post office, railway or forwarding agency)
Exceeding the low voltage protection
Use insulated wires and not bare wires for the terminal connection.
It is assumed that only qualified and trained personnel service the source measure
units and the connected loads.
Before switching on the product, it must be ensured that the nominal voltage setting on
the product matches the nominal voltage of the AC supply network.
4.1.2
Intended operation
The instrument is intended only for use by personnel familiar with the potential risks of
measuring electrical quantities.
For safety reasons, the instrument may only be connected to properly installed wall
outlets. Separating the ground is prohibited.
The power cable must be inserted before signal circuits may be connected.
Putting into operation
