Chapter 6 Maintenance and Service
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• To clean the instrument, wipe it gently with a soft cloth moist-
ened with water or mild detergent. Never use solvents such as
benzene, alcohol, acetone, ether, ketones, thinners or gaso-
line, as they can deform and discolor the case.
• Wipe the Lens and LCD gently with a soft, dry cloth.
Replaceable Parts and Operating Lifetimes.
Useful life depends on the operating environment and frequency
of use. Operation cannot be guaranteed beyond the following
periods For replacement parts, contact your dealer or Hioki rep-
resentative.
Maintenance and
Service
Chapter 6
6.1 Cleaning
6.2 Consumables
Part Operating lifetime
Measurement vis-
ible-spectrum red
LED and sensor
8,000 hours (about 3 years at 8 hours of use per day)
A reduction in detection range indicates the operating
lifetime is almost over. The instrument should be re-
paired.
LCD backlight 50,000 hours
If the display becomes difficult to see (dim), the instru-
ment should be repaired.
Batteries Operating lifetime varies with conditions of use.
When the remaining battery life indicator is displayed
as , replace the batteries with new batteries.
6.3 Discarding the Instrument
• Battery may explode if mistreated. Do not short-circuit,
recharge, disassemble or dispose of in fire.
• Handle and dispose of batteries in accordance with local regu-
lations.
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