Section 4 - Battery And Fuse Replacement - Iso-Tech IDM 98-III Instruction Manual

Auto Power Off Disable
Rotate the switch to the "OFF" position, Press and hold down the
Function button and turn the instrument on.
Testing the LCD Display
Rotate the switch to the "OFF" position, Press and hold down the Smart-
HOLD button and turn the instrument on.
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IDM 98III / 99III English IDM 98III / 99III English
SECTION 4 – BATTERY AND FUSE REPLACEMENT
CAUTION
The following safety information must be observed to ensure maximum personal
safety during the operation of this instrument.
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
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)
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