User manual

PE2M Small Form Factor PC User Guide - Precautions
Page 9
Precautions
General Precautions
Before attempting any modification to, or internal adjustment of the PE2M PC, please read the following
sections carefully. Certain precautions are necessary when handling circuit boards and equipment
containing them. Failure to observe the precautions could result in being unable to operate the equipment,
damage to the product, or in extreme cases, personal injury. It is imperative that precautions are taken at all
stages to avoid Electro-static discharges, which will damage boards. Boards fitted with an on-board lithium
battery must be handled carefully to avoid maltreatment of the battery that could create a hazard.
Under no circumstances should the power supply unit be disassembled. Dangerous voltages exist within the
power supply enclosure. Note that the IEC-320 AC supply connector is the AC supply disconnect device.
Mounting
The unit is supplied with M4 x 6 fixing screws to fix brackets to the ends of the chassis. If alternative
screws are used, ensure that they do not enter the chassis by more than 5 mm, otherwise internal damage
may result.
PS/2 Devices
It is important that PS/2 devices (mouse and keyboard) are not connected or disconnected with the unit
powered on. Damage or data corruption may occur if this precaution is not observed.
Electro-Static Discharges
If you are going to open up the unit, it is important to realise that the devices on the cards within this unit
can be totally destroyed by static electricity. Bear in mind that the damage caused by static electricity may
be partial and not immediately obvious. This could have an effect on the product's reliability and warranty.
Before opening the chassis, ensure that you take necessary static precautions. Ideally you should wear an
approved wrist strap or if that is not possible, touch a suitable ground to discharge any static build up. This
should be repeated if the handling is for any length of time.
If it is necessary to remove a board or electronic assembly, please place it into an anti-static bag. This will
prevent any static electricity build up damaging the board. Metallised bags are preferred. Do not use black
anti-static bags for any item containing a battery because these tend to be conductive and will discharge the
battery.
On-Board Battery
The processor board is fitted with a Lithium battery. If the battery is mistreated in any way there is a very
real possibility of fire, explosion, and personal harm. Great care should be taken with this type of battery.
Under NO circumstances should it be short-circuited, exposed to temperatures in excess of 100 ºC or burnt,
immersed in water, recharged or disassembled.
Expired batteries remain hazardous and must be disposed of in a safe manner, according to local regulations.
Le panneau de processeur est équipé d’une batterie de lithium. Si la batterie est mistreated il y a de dans de
toute façon un possibility très vrai du feu, d’expolosion et de mal personnel. Le grand soin devrait être pris
avec ce type de batterie. Dans au cunes circonstances il est sous peu circuité, exposé aux températures au
dessus de 100 degrés de centrigrade ou brûlé, immergé dans l’eau, rechargée ou dissassambled.
Les batteries expirées restent dazaedous et doivent être reejetées d’une façon sûre, selon des règlements
locaux.