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Temperature Calibrator
Replacing the Batteries
35
Replacing the Batteries
WWarning
To avoid false readings, which could lead to
possible electric shock or personal injury,
replace the batteries as soon as the battery
indicator (M) appears.
Figure 17 shows you how to replace the batteries.
Replacing the Fuse
The calibrator comes equipped with one 0.05A, 250V,
socketed fuse to protect the calibrator.
WWarning
To avoid electrical shock, remove the test
leads from the calibrator before opening the
battery door. Close and latch the battery
door before using the calibrator.
The fuse can be removed and checked for
resistance. A value of < 10
Ω is good. Problems
while measuring using the right jacks indicate that
F3 may have opened. To replace the fuse, refer to
Figure 17 and perform the following steps:
1. Turn the calibrator off, remove the test leads
from the terminals, and hold the calibrator face
down
.
2. Using a flat-blade screwdriver, turn the battery door
screws 1/4-turn counterclockwise and remove the
battery door.
3. Remove and replace the damaged fuse.
4. Replace the battery door and secure it by turning the
screws 1/4-turn clockwise.