F
100VAC Operation
200VAC Operation
Input voltage range
90V to 132V 198V to 250V
Frequency range 48Hz to 66Hz
Power consumption
200VA or below
R3131 Spectrum Analyzer Operation Manual
1.3 Operating Environment
The R3131 Series can be used safely under the following conditions:
• Altitude: 2000m maximum above the sea level
• Installation category II
• Pollution degree 2
1.3.2 Power Requirements
The power supply specifications of the spectrum analyzer are listed in Table 1-3.
Table 1-3 Power Supply Specifications
CAUTION: To prevent damage, operate the spectrum analyzer within the specified input voltage and frequency
ranges.
During operation, the power supply automatically switches between input voltage levels of 100VAC and
200VAC. Be sure, however, to use a power cable that matches the input voltage and meets the related stan-
dard (see Table 1-2).
13.3 Power Fuse
CAUTION: When a fuse blows, there may be some problem with the analyzer so contact a sales representative
before replacing the fuse.
The power fuse is placed in the fuse holder which is mounted on the rear panel. A spare fuse is located in
the fuse holder.
To check or replace the power fuse, use the following procedure:
1. Press the POWER switch to the OFF position.
2. Disconnect the power cable from the AC power supply.
3. Remove the fuse holder on the rear panel.
4. Check (and replace if necessary) the power fuse and put it back in the fuse holder.
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