Replacing The Fuse; Selecting Line Voltage - Fluke 5820A Operator's Manual

5820A
Operators Manual

2-3. Replacing The Fuse

To avoid fire, be sure to install the proper fuse and to set the
voltage select switch to the proper voltage. For 100 V and
120 V, use 2A/250V SB (time delay). For 220 V and 240 V, use
1A/250V SB (time delay).
The line power fuse is accessible on the rear panel. The fuse rating is 2A/250V time
delay fuse for the 100V/120V line voltage setting; 1A/250V time delay fuse for the
220V/240V line voltage setting.
To check or replace the fuse, refer to Figure 2-1 and proceed as follows:
1. Disconnect line power.
2. Open the fuse compartment by inserting a screwdriver blade in the tab located at the
3. Remove the fuse from the compartment for replacement or verification. Be sure the
4. Reinstall the fuse compartment by pushing it back into place until the tab locks.

2-4. Selecting Line Voltage

The calibrator arrives from the factory configured for the line voltage normally
appropriate for the country of purchase, or as specified at the time of your purchase order.
You can operate the 5820A Calibrator from one of four line voltage settings:
100 V, 120 V, 200 V, and 240 V (47 to 63 Hz). To check the line voltage setting, note the
voltage setting visible through the window in the power line fuse compartment cover
(Figure 2-1). The allowed line voltage variation is 10 % above or below the line voltage
setting.
To change the line voltage setting, complete the following procedure:
1. Disconnect line power.
2. Open the fuse compartment by inserting a screwdriver blade in the tab located at the
3. Remove the line voltage selector assembly by gripping the line voltage indicator tab
4. Rotate the line voltage selector assembly to the desired voltage and reinsert.
5. Verify the appropriate fuse for the selected line voltage and reinstall the fuse
2-4
left side of the compartment and gently pry until it can be removed with the fingers.
correct fuse is installed.
left side of the compartment and gently pry until it can be removed with the fingers.
with pliers and pulling it straight out of its connector.
compartment by pushing it back into place until the tab locks.
XW
Warning