5500A
Operator Manual
7-4
/ 63Hz
47Hz
300VA MAX
FUSE
CAUTION
FOR FIRE PROTECTION
REPLACE ONLY WITH A 250V FUSE
OF INDICATED RATING
MAINS SUPPLY
/120V
100V
/240V
220V
T2.5A 250V
(SB)
T1.25A 250V
(SB)
CHANGING LINE FUSE
F7-01.eps
Figure 7-1. Accessing the Fuse
7-3. Cleaning the Air Filter
Warning
To avoid risk of injury, never operate or power the 5500A
calibrator without the fan filter in place.
Caution
Damage caused by overheating may occur if the area around
the fan is restricted, the intake air is too warm, or the filter
becomes clogged.
The air filter must be removed and cleaned every 30 days or more frequently if the
calibrator is operated in a dusty environment. The air filter is accessible from the rear
panel of the calibrator.
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