Changing Line Voltage - Fluke 525B User Manual

525B
Users Manual
To check or replace a fuse:
1. Disconnect line power.
2. Using the blade of a standard screwdriver, pry the tab at the base of the line
fuse compartment. The compartment cover will pop part way out.
3. Remove the compartment cover. The fuses come out with the compartment
cover and can easily be checked or replaced.
4. To reinstall the fuse, push the compartment cover back into the compartment
until the tab locks in place.
When changing the line voltage setting, you will need to verify that
the appropriate line fuse is installed in the Calibrator. Replace the
fuse as required.
Part Number
 1645311
 1645327

Changing Line Voltage

The Calibrator arrives from the factory configured for the line voltage appropriate
for the country of purchase or as specified when it is ordered. To verify the line
voltage setting, check the line voltage indicator on the power line fuse
compartment cover.
Confirm that the line voltage selection is set for 120 V for line
voltages between 90 V and 132 V or that the selector is set to 240 V
for line voltages between 198 V and 264 V.
To change the line voltage:
1. Disconnect line power.
2. Using the blade of a standard screwdriver, pry the tab at the base of the line
fuse compartment. The compartment cover will pop part way out.
3. Remove the compartment cover.
4. Remove the line voltage selector assembly by gripping the line voltage
indicator tab with pliers and pulling it straight out of the compartment.
5. Rotate the line voltage selector assembly to the desired voltage and reinsert.
6-2
Note
Table 6-1. Replacement Fuses
Fuse Description
0.25 A/250 V fast
0.125 A/250 V fast
Note
Line Voltage Setting
120 V (90 V to 132 V)
240 V (198 V to 264 V)