Input Voltage Range And Fuses - R&S HZ-9 Manual

R&S HZ-9

4.1.1 Input Voltage Range and Fuses

First, the line fuses should be checked to ensure they are functional. The fuse holder
should also be checked to make sure it is set for the proper line voltage (see Putting
into Operation).
The F101/F102 line fuses are dimensioned so they can be used for both line voltage
ranges. If the fuse is exchanged, the type IEC 60127-2/3 T125mA H 250V
(Rohde & Schwarz order number 0009.5528.00) must be used as the replacement.
Procedure for exchanging the fuses:
1. Open the cover for the power connector on the power supply's rear panel
(it can be opened only when the power cable is not connected).
2. Remove the line voltage selector using a suitable lifting tool such as a screwdriver,
size 1.
3. Exchange the two fuses.
4. Set the line voltage by correctly inserting (rotating) the line voltage selector.
5. Close the power connector cover.
The desired line voltage must be visible in the display window.
Manual 1316.4969.02 - 01
Service
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