Hitachi CE50-10, Инструкция по эксплуатации

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7.4 Life-limited parts
Parts are subject to wear and tear during their use. Table 7‒6: Life-limited parts shows the parts that need to be
replaced at predefined cycles.
These parts are replaced for profit.
Table 7‒6: Life-limited parts
No. Name Life Q'ty (standard) Remarks
1 SSD 10 years
(When the amount of
write data per day is
50 GB or less)
1 If the amount of write data per day
exceeds 50 GB, its useful life will
be shorter.
• Environmental conditions relating to corrosion of this unit are defined in JEITA IT-1004B Class B (temperature of 35 degrees
Celsius and humidity of 50% RH). The recommended replacement cycles shown in the preceding table are specified under the
condition that the average ambient temperature is 35 degrees Celsius. If the average ambient temperature exceeds 35 degrees
Celsius or if the environmental conditions are not met, the replacement cycle shall be shortened.
• Maintenance parts (life-limited parts) are replaced at a fee. We ask you to factor maintenance fees into your budget.
• This unit uses a lithium battery. To dispose of the battery, contact us.
If you want to dispose of the battery by yourself, follow the rules or regulations of the local authority.
• When the unit or part is replaced in the event of failure or repair, or for any other reason, the new unit or part might be of a
different model with compatible functions.
• For peripheral devices, refer to the user's guide that comes with each device for the necessary information about maintenance.
• We have confirmed that zinc oxide whiskers could negatively affect devices. Do not use electrogalvanized materials in the place
where this unit and peripheral devices are installed.
Information from
JEITA Technical Report, Guideline of Facilities and Equipment for Information Systems (JEITA ITR-1001D):
Places where zinc whiskers are generated: Electrogalvanized floor panels, stringers, poles, and aseismic flat steel
Phenomenon: A problem occurs when whisker-like zinc crystals (conductive whiskers) on the floor float in the air and enter
devices, causing short-circuits on PCBs or terminals. Because the phenomenon that appears varies depending on the location of
the short-circuits, identifying the cause of the problem is difficult. Typically, such problems are handled as transitory errors.
Therefore, it takes time to find the cause of the problem.
CAUTION
This unit uses a lithium battery. When replacing the battery, you must use the one specified by Hitachi. Using any
other battery might cause an explosion, fire, rupture, heat generation, leakage, or gas generation.
NOTICE
Do not use life-limited parts beyond their recommended replacement cycle. Deteriorated parts might cause damage.
7. Maintaining the CE50-10
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