5522A
Operators Manual
7-4
Table 7-1. Replacement Line Fuses
Part Number Fuse Description Line Voltage Setting
109215 5A/250 V Time Delay 100 V or 120 V
851931 2.5A/250 V Time Delay 200 V or 240 V
100V/120V
220V/240V
T5.0A 250V
(SB)
T2.5A 250V
(SB)
/63Hz
47Hz
600VA MAX
WARNING:
TO AVOID ELECTRIC SHOCK GROUNDING
CONNECTOR IN POWER CORD MUST BE CONNECTED
FUSE
MAINS SUPPLY
CHASSIS
GROUND
WARNING:
TO AVOID PHYSICAL INJURY, INSURE THA
IS PROPERLY INSTALLED BEFORE ENERGIZING INSTRU
CAUTION
FOR FIRE PROTECTION REPLACE O
WITH A 250V FUSE OF INDICATED RATING
0V
(SB)
120
120
240
Changing Line Fuse
Changing Line
Voltage
Line Voltage
Indicator
gjh004.eps
Figure 7-1. Accessing the Fuse
How to Replace the Current Fuses
The current fuses are accessible for the bottom of the Calibrator. These fuses protect the
3A and 20A outputs from over-current. Table 7-2 lists the fuse part numbers for the two
current fuses. To replace a current fuse:
1. Turn the Calibrator over on its top.
2. Remove the two screws with a Phillips head screwdriver as shown in Figure 7-2.
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