Digital Multimeter
Basic Maintenance
23
3.
The display should indicate between 00.0
Ω
and 00.5
Ω
. If the display reads OL,
replace the fuse and test again. If the display reads another value, further servicing is
required.
4.
To test F1, move the probe from the
A
input terminal to the
mA/
U
A
input terminal.
5.
The display should read between 0.995 k
Ω
and 1.005 k
Ω
. If the display reads OL,
replace the fuse and test again. If the display reads another value, further servicing is
required.
XW
Warning
To avoid electrical shock or personal injury:
•
Remove the test leads and any input signals before
replacing the battery or fuses.
•
Install ONLY specified replacement fuses with the
amperage, voltage, and speed ratings shown in Table 17.
MIN MAX
RANGE
REL
Hz %
AutoHOLD
Peak MIN MAX
4½ DIGITS
1 Second
˚
C/
˚
F
OFF
mA
A
mV
V
V
A
A
mA
COM
V
400mA
FUSED
10A MAX
FUSED
A
TRUE RMS MULTIMETER
87 V
LO
LO
MIN MAX
RANGE
REL
Hz %
AutoHOLD
Peak MIN MAX
4½ DIGITS
1 Second
˚
C/
˚
F
OFF
mA
A
mV
V
V
A
A
mA
COM
V
400mA
FUSED
10A MAX
FUSED
A
TRUE RMS MULTIMETER
87 V
LO
LO
Good F2 fuse: 00.0
Ω
to
00.5
Ω
Good F1 fuse: 0.995 k
Ω
to
1.005 k
Ω
Replace fuse: OL
Replace fuse: OL
Touch top half
of input contacts
aom5f.eps
Figure 4. Testing the Current Input Fuses
Replacing the Fuses
To replace the fuse(s), perform the following procedure.
1.
To open the Meter, refer to “Opening the Meter Case”. See Figure 2.
2.
Grasp the fuse in the center with needle nose pliers. Pull straight up on the fuse
to remove it from the fuse clips.
3.
Install ONLY specified replacement fuses with the amperage, voltage, and speed
ratings shown in Table 17.
4.
To close the Meter, refer to “Reassembling the Meter Case”.
