Fuse Test; Fuse Replacement - Fluke 27 Service Manual

27
Service Manual
3-5.

Fuse Test

To avoid electrical shock or personal injury, remove the test
leads and any input signals before replacing the battery or
fuses. Make sure the battery door is closed and latched before
you operate the meter.
To prevent equipment damage or injury, install ONLY specified
replacement fuses with the amperage, voltage, interrupt, and
speed ratings listed in the Fuse Replacement Maintenance
section.
1. 7XUQ WKH IXQFWLRQ VHOHFWRU VZLWFK WR WKH
2. Connect a test lead from the volts/ohms/diode-test input terminal to the A input
3. The display should indicate between 0.1
4. Move one end of the test lead from the A input terminal to the mA/µA input
5. The display should indicate between 5.3
6. If either of the above display indications is OL (overload), replace the appropriate
3-6.

Fuse Replacement

Referring to Figure 3-1, use the following procedure to check or replace the Fluke 27
fuses:
1. Perform steps 1 through 4 of the battery replacement procedure.
2. Pull the fuse cover down, then out of the meter.
3. Remove the defective fuse (or check continuity) through the suspected fuse), and if
4. Snap the fuse cover back into place.
5. Reinstall the battery/cover as instructed in step 6 of the battery spacer replacement
Item
F1 W
F2 W
WTo ensure safety, use exact replacement only
3-6
terminal.
fast).
terminal.
(44/100 A, 1000 V) .
fuse.
necessary install a new fuse of the same size and rating.
procedure.
Table 3-2. Replacement Fuses
Description
Fuse, F44/100 A, 1000 VAC/DC
Fuse, 11 A, 1000 VAC/DC
XWWarning
SRVLWLRQ
and 0.3 . This tests F2 (11 A, 1000 V
and 6.0 . This tests F1
Fluke Part Number Quantity
943121
803293
1
1