Maintenance, storage and disposal
R&S
®
QAT100
43
User Manual 1179.3073.02 ─ 02
11
Maintenance, storage and disposal
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.
11.1
Changing fuses
If the product does not start, it is possible that a blown fuse is the cause. The fuse is
located in the socket of the power supply.
The R&S
QAT is protected by two time lag fuses (IEC 60127-2/5: T4.0H/250V, order
number 0020.7600.00). The fuse holder is located next to the AC main switch and the
AC power connector.
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 product from the power source.
2. Bend the small clamps on top and bottom of the fuse holder to unlock it.
Use two small screwdrivers, for example.
1
1
2
Figure 11-1: Fuse replacement
1 = Unlock fuse holder
2 = Remove fuse holder
3. Pull out the fuse holder.
4. Check the condition of the fuse.
5. Replace the blown fuse. Only use a fuse of the specified type.
Changing fuses
