Hioki Power HiTester 3193, Instruction Manual

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18.1 Cautions
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A
WARNING
Do not attempt to adjust or repair the unit with the case open and
with voltage being input. Such adjustments or repairs should only be
made by a technician who fully understands the dangers involved.
If any of the power meter's protective functions are damaged, either
dispose of it so that it cannot be used, or else label it clearly so that
no one will use it unknowingly.
CAUTION
・ Gently wipe dirt from the surface of the unit with a soft cloth moistened with
a small amount of water or mild detergent. Do not try to clean the unit using
cleaners containing organic solvents such as benzine, alcohol, acetone, ether,
ketones, thinners, or gasoline. They may cause discoloration or damage.
・ If a problem is found, contact your dealer or HIOKI representative. Pack the
unit carefully so that it will not be damaged during transport, and write a
detailed description of the problem. HIOKI cannot bear any responsibility for
damage that occurs during shipment.
Parts Lifespan
Remarks
Electrolytic
capacitor
about 10 years
The lifespan of the electrolytic capacitor varies greatly depending
on the usage environment. It will deteriorate by approximately four
years if used in a harsh environment (surrounding temperature of
40 degrees), or when the ventilation holes are blocked. When the
electrolytic capacitor deteriorates, the HIOKI 3193 may
malfunction. Replace it regularly.
Lithium battery about 10 years
The HIOKI 3193 includes a back-up lithium battery. The lifespan
of the back-up battery is approximately ten years. If there is a big
delay with the date or the time when the device is switched on, it
is time to replace the battery. Contact the nearest HIOKI
representative for details.
LCD back light
(Brightness is
halved)
about 50.000 hours Regular replacement is necessary.
Chapter 18
Maintenance and Service
18.1 Cautions
Fuses
This unit uses a switched power supply and is equipped with an internal
fuse. This fuse cannot be replaced externally.
Exchangeable parts and lifespan