IDM 98IV
&
99IV / EN
14
Battery and Fuse Replacement
Caution
The following safety information must be observed to ensure
maximum personal safety during the operation of this instru-
ment.
1. To avoid electric shock, disconnect the test leads before
replacing the instrument fuses or batteries.
2. When replacing the instrument batteries, do not mix batteries
of different types or old and new batteries.
3. Check the battery polarity carefully when inserting the
batteries.
4. Do not short-circuit used batteries, disassemble them, or
throw them in a fire. Doing so may cause the batteries to
explode.
5. Dispose of the used batteries in accordance with local
regulations.
Fuse Replacement
Fuse 440mA (1000V)
Battery Cover
Fuse 11A (1000V)
Rear Case
Caution
Use only fuses with the following fuse rating:
440mA,1000V IR 10KA Fast acting fuse (size 35 x 10mm)
DMM-B-44/100 – 10,000A, 1000 VAC, unity power factor
and 10,000A, 1000 VDC with time constant of 2.2ms
11A, 1000V IR 20KA Fast acting fuse (size 38 x 10mm)
DMM-B-11A – 20,000A, 1000 VAC, power factor
≦
0.2;
20,000A, 1000 VDC, time constant
≧
10ms.
(size 38 x 10mm)
