Maintenance, storage, transport and disposal
R&S
®
ZNL/ZNLE
1106
User Manual 1178.5966.02 ─ 19
13
Maintenance, storage, transport and dis-
posal
The product does not require regular maintenance. It only requires occasional clean-
ing. It is however advisable to check the nominal data from time to time.
13.1
Cleaning
How to clean the product is described in
Do not use any liquids for cleaning. Cleaning agents, solvents, acids and bases can
damage the front panel labeling, plastic parts and display.
13.2
Changing fuses
If the battery option R&S
FPL1-B31 is installed (
R&S
ZNL only!
), an AC supply fuse is
built into the AC power supply connector. Only use fuses of the type 5A T
IEC60127-2/V (order no. 0099.6735.00). Such fuses are used for all of the specified
nominal AC supply voltages.
If the R&S
ZNL/ZNLE does not start, it is possible that a blown fuse is the cause. The
fuse is located in the socket of the power supply.
1.
WARNING!
The fuse is part of the main power supply. Handling the fuse while the
power is on can lead to electric shock.
Before changing the fuse:
a) Set the switch on the power supply to position [0].
b) Disconnect the R&S
ZNL/ZNLE from the power source.
2. Pull out the fuse holder.
3. Check the condition of the fuse.
4. Replace the blown fuse. Only use a fuse of the specified type.
The fuse type and its characteristics are indicated next to the fuse holder.
5. Insert the fuse holder into the mains power inlet.
Changing fuses