NEC ShieldPRO FC-N21S Ruggedised Notebook Computer
User’s Guide 0318-00002 Ver. 2.0 Dec 2008 – Page 17
In addition, the LCD display may respond slower than normal.
4.7.3.
Shock Resistance
The chassis of ShieldPRO is made of magnesium die-cast alloy and equipped with a hard disk
drive designed for shock resistance.
ShieldPRO has been designed to endure a drop test from a height of 90 cm to a plywood or
concrete floor.
The shock resistance of ShieldPRO does not guarantee that no damage or faults will occur.
If ShieldPRO is damaged by shock, it may have reduced dust-proof and drip-proof performance as well as
shock resistance. Accordingly, it is recommended to repair ShieldPRO immediately when damaged.
4.7.4.
Continuous Operation of ShieldPRO for Long Periods
If ShieldPRO is operated continuously for a long period, the lifespan of parts in ShieldPRO may be
reduced. Therefore, NEC may charge for the repair of ShieldPRO within the warranty period if
subjected to continuous operation for a long period.
If a hard disk drive (HDD) is used, rest the HDD periodically to reduce deterioration caused by
continuous operation.
To rest the hard disk drive, the power management may be set by the OS (Windows) to halt the
HDD automatically if access to the hard disk does not occur for a certain period:
Period set at shipment: 30 minutes (when ShieldPRO is connected to AC power)
Recommended period: 3 minutes (when ShieldPRO is connected to AC power)
ambient temperature range 5 to 40ºC.
