Replacing Fuses; Replacing The Batteries - Fluke 187 Calibration Manual

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Calibration Manual

Replacing Fuses

To avoid electrical shock, remove the test leads and any input
signals before replacing the battery or fuses. To prevent damage or
injury, INSTALL ONLY specified fuses and batteries.
To replace the fuses, refer to Figure 3 and do the following:
1. Turn the rotary switch to
2. Remove the battery access door by using a standard-blade screwdriver to turn the
3. Remove either fuse by gently prying one end loose, then lifting the fuse out of the
4. Install ONLY specified fuses.
5. Reinstall the battery door. Secure the door by turning the fasteners one-quarter turn

Replacing the Batteries

The Meter is powered by four AA batteries (NEDA 15A or IEC LR6).
Be sure to observe proper polarity when replacing batteries.
Incorrect battery polarity may seriously damage the Meter.
14
Replace F2 if " or
displayed
Figure 2. Testing the Current Fuses
battery door fasteners one-quarter turn counterclockwise.
fuse contacts.
clockwise.
" Replace F1 if "
displayed
A
mA
WWarning
and remove the test leads from the terminals
OFF
Caution
or "
A
mA
ach038f.eps