Hitachi HF-W100E Instruction Manual page 24

• The following are precautions for the left, right, top, and bottom sides of the equipment:
• Do not attach heating devices.
• For ease of maintenance work, make sure that the Equipment can be moved easily;
if fixed, ensure that the Equipment can be removed easily.
• It is reported that zinc whiskers can cause a problem with the device. Do not use electro-
galvanized material near or at the place where the equipment is installed.
(A quote from the Technical Report of JEITA(*) ITR-1001 "Guideline of Facilities and
Equipment for Information Systems")
Location of whiskers:
Phenomenon:
the floor for some reason, go inside the device, and short-circuit a PCB or its
pins. The root cause is difficult and time-consuming to find because the
symptom differs depending on the location of the short circuit, and often, it is
mistaken for a temporary issue.
(*) JEITA : Japan Electronics and Information Technology Industries Association
<Required action>
• If you mount the equipment in a chassis or on a desk, the temperature increase around the
equipment needs to be taken into consideration.
• The system clock and the like inside the equipment always operates using a backup
battery even when the power is off. Therefore, if you store the equipment at a temperature
outside the operating temperature range, you may need to reconfigure system BIOS
settings including the clock settings, when you start using the equipment again. When you
reconfigure system BIOS settings, follow the instructions in "5.3 BIOS Setup".
(6) OPERATING CONDITION
<Precautions>
• In order to prevent moisture condensation, when you move the equipment from outside
the building to inside, wait for at least four hours before using the equipment.
• The equipment is made of precision electronics components. Do not subject the equipment
to any vibration or shock.
• Do not sit on the equipment nor place anything on the equipment.
• During normal operation, do not turn off the display. Set it into the standby mode instead.
• During normal operation, do not touch the keyboard or mouse until the logon screen is
displayed when you turn on the equipment.
<Required action>
• We recommend that you remove the dust built up in the neighborhood of the device (in
particular, below the device), in the vents on the device , and on the front of the device
itself.
Whiskers are created by electrogalvanized equipment such as
floor panels, stringers, posts, aseismic flat steel, and the like.
Hair-like zinc crystals (conductive whiskers) float into the air from
C-4