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Repairs, Inspections, and Cleaning
Replaceable parts and service life
Some parts used in the instrument are characterized by performance that degrades over years of
use.
It is recommended to replace these parts regularly to ensure instrument functionality over the long
term.
To order replacements, please contact your authorized Hioki distributor or reseller.
The service life of parts varies with the operating environment and frequency of use. These parts
are not guaranteed to operate throughout the period dened by the recommended replacement
interval.
Parts Service life Remarks and conditions
Electrolytic capacitor About 10 years
Requires replacement of the printed circuit boards on
which such parts are mounted.
Liquid crystal backlight (half
life period of brightness)
About 8 years If operated 24 hours per day
Fan motor About 10 years If operated 24 hours per day
Backup battery About 10 years
Requires replacement if the time and date are
signicantly deviated when the instrument is turned on.
Optical insulation element About 10 years If operated 24 hours per day
Optical connection cable
connector
About 10 years If operated 24 hours per day
Replacing fuses
The instrument’s power supply has a built-in fuse. If the instrument cannot be turned on, the fuse
may have blown. Fuses cannot be repaired or replaced by the customer. Contact your authorized
Hioki distributor or reseller.
Cleaning
PW8001 main body
NOTICE
Periodically clean the vents to avoid blockage.
When the vents become clogged, the internal cooling eect of the instrument is
hampered, and this can lead to damage to the instrument.
If the instrument becomes dirty, wipe the instrument softly with a soft cloth
moistened with water or a neutral detergent.
Do not wipe the instrument strongly and never use solvents such as benzene,
alcohol, acetone, ether, ketones, thinners, or gasoline. Failure to follow this
instructions can deform and discolor the instrument.
Wipe the display gently with a soft, dry cloth.
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