Hioki MR8740, Instruction Manual

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365
C
hap
ter 18
M
aintena
nce and
Service
14
18
Transporting
Pack the instrument so that it will not sustain damage during shipping, and
include a description of existing damage. We cannot accept responsibility for
damage incurred during shipping.
Use the original packing materials when transporting the instrument, if possible.
Replaceable Parts
Certain parts require replacement periodically and at the end of their useful life:
(Useful life depends on the operating environment and frequency of use. Opera-
tion cannot be guaranteed beyond the following periods)
The fuse is housed in the power unit of the instrument. If the power does not turn
on, the fuse may be blown. If this occurs, a replacement or repair cannot be per-
formed by customers. Please contact your dealer or Hioki representative.
Maintenance and
Service
Chapter 18
To avoid damage to the instrument, remove the USB memory stick before ship-
ping the instrument.
Part Life
Fan Motor
Approx. 60,000 hours
Power Source
Approx. 50,000 hours
Electrolytic
Capacitors
Approx. 45,000 hours
(The useful life of electrolytic capacitors varies greatly accord-
ing to the operating environment. In severe operating environ-
ments (40°C ambient temperature), degradation occurs in
about four years, so they should be replaced periodically.)
Lithium Battery
Approx. 10 years
This instrument contains a built-in lithium battery to back up
settings and the real-time clock. Have the battery replaced if
the date and time are found to lag substantially or if settings
are not retained when power is turned off and back on. Con-
tact your dealer or Hioki representative.