Elenco Digital Bench Multimeter - Manual (Page 25)

DVM645BI GB 24
Fuse Replacement
WARNING
To avoid electric shock, disconnect the test leads and any input
signals before replacing the fuses. Replace only with the same type of
fuse. The A input terminal is protected by a F 15A/250V fast blow
ceramic fuse. The mA input terminal is protected by a F 1A/250V fast
blow ceramic fuse.
Use the following procedure to examine or replace the multimeter fuses:
1. Turn the power switch to off, and disconnect the power cable from the
mains.
2. Disconnect the test leads from any live source, turn the rotary switch to off,
and remove the test leads from the input terminals.
3. Open the tools cover on the top, and open the fuse cover in the tool case.
4. Remove the blown fuse, replace with a fuse of the same size and rating.
Make sure the new fuse is centred in the fuse holder.
5. Replace the blown fuse with one of the same rating.
6. The A input terminal is protected by a F 15A/250V fast blow ceramic fuse,
Ø 6 x 30mm. The mA input terminal is protected by a F 1A/250V fast blow
ceramic fuse, Ø 5 x 20mm.
7. Fuses rarely need replacement and almost always blow as a result of
operator error.
8. Never use the bench multimeter unless the fuse cover is in place and fully
fastened.
Power Fuse Replacement
WARNING
To avoid electric shock, disconnect the power cable from the mains,
and disconnect the test leads and any input signals before replacing
the power fuse. Only replace with same type of fuse
Use the following procedure to examine or replace the power fuse:
1. Turn the power switch to off, and disconnect the power cable from mains.
2. Disconnect the test leads from any live source, turn the rotary switch to off,
and remove the test leads from the input terminals.
3. Replace the power fuse in the power supply input. Replace the blown fuse
with one of the same rating.
4. The power fuse is 80mA/250V, Fast, Ø 5 x 20mm