User manual ACER C810

[. . . ] Users are also at risk of physical injury after long hours of working in front of a computer. Long work periods, bad posture, poor work habits, stress, inadequate working conditions, personal health and other factors greatly increase the risk of physical injury. Incorrect computer usage may lead to carpal tunnel syndrome, tendonitis, tenosynovitis or other musculoskeletal disorders. The following symptoms may appear in the hands, wrists, arms, shoulders, neck or back: • Numbness, or a burning or tingling sensation. [. . . ] Using a power outlet that is not properly grounded may result in electric shock and/or injury. Note The grounding pin also provides good protection from unexpected noise produced by other nearby electrical devices that may interfere with the performance of this product. € The system can be powered using a wide range of voltages; 100 to 120 or 220 to 240 V or 100-240 V AC. The power cord included with the system meets the requirements for use in the country/region where the system was purchased. Power cords for use in other countries/regions must meet the requirements for that country/ region. For more information on power cord requirements, contact an authorized reseller or service provider. 12 - Basic care and tips for using your computer Guidelines for safe battery usage Warning Batteries may explode if not handled properly. Do not disassemble or dispose of them in fire. Follow local regulations when disposing of used batteries. Important Replace the battery with the same type as that which came bundled with your product. Use of another battery may present a risk of fire or explosion. To prevent direct exposure to the laser beam, do not try to open the enclosure. Vehicles RF signals may affect improperly installed or inadequately shielded electronic systems in motor vehicles such as electronic fuel injection systems, electronic antiskid (anti-lock) braking systems, electronic speed control systems, and air bag systems. For more information, check with the manufacturer, or its representative, of your vehicle or any equipment that has been added. Only qualified personnel should service the device, or install the device in a vehicle. Faulty installation or service may be dangerous and may invalidate any warranty that may apply to the device. Check regularly that all wireless equipment in your vehicle is mounted and operating properly. Do not store or carry flammable liquids, gases, or explosive materials in the same compartment as the device, its parts, or enhancements. For vehicles equipped with an air bag, remember that air bags inflate with great force. Do not place objects, including installed or portable wireless equipment in the area over the air bag or in the air bag deployment area. If in-vehicle wireless equipment is improperly installed, and the air bag inflates, serious injury could result. Using your device while flying in aircraft is prohibited. [. . . ] Use of other accessories which contain metals may not ensure compliance with ICNIRP exposure guidelines. This equipment complies with the essential requirements of the European Union directive 1999/5/EC. See Statements of European Union Compliance, and more details refer to the attached Declaration of Conformity. 24 - Warnings and regulatory information English Hereby , ACER INC. [. . . ]