ENGLISH
Preface
DVR User’s Manual
7
Safety Information
Warning
This is the symbol for indicating any potential hazard,
risk or condition requiring special attention.
The user needs to refer to the important operating
and maintenance or servicing instructions.
Caution
The lighting flash with an arrow head symbol, in an
equilateral triangle, is intended to alert the user.
There is dangerous “voltage” presence near by the
product’s enclosure which may be risk of person.
Safety Precautions
• Do not touch live electrical parts.
Electric shock can be avoided. Follow the recommended practices listed below. Faulty installation, improper
grounding, and incorrect operation and maintenance of electrical equipment are always sources of danger.
• Do not try to install equipment outdoor, during strong wind and rain.
• Do not install or remove equipment outdoor, when raining.
• Do not try to install or operate any equipment, during a thunderstorm.
• Always ground all electrical equipment and the work platform.
Prevent accidental electrical shocks. Connect power source, control cabinets, and work platform to an approved
electrical ground.
• Always use the correct cable size.
Sustained overloading will cause cable failure and result in possible electrical shock or fire hazard. Work cable
should be the same rating as the factory.
• Always keep cables and connectors in good condition.
Improper or worn electrical connections can cause short circuits and can increase the chance of an electrical shock.
Do not use worn, damaged, or bare cables.
• Always avoid open-circuit voltage.
The added voltages increase the severity of electric shock hazard.
• Always wear insulated gloves while you adjust equipment.
Electric power should be turned off and insulated gloves should be worn when making any equipment adjustment
to assure shock protection.
• Always wear protective clothing such as long sleeve shorts while you are installing or removing equipment.
• Always wear high, snug fitting shoes.
• Always wear clean clothes without grease or oil.
• Protect neighboring workers from exposure to arc radiation.
• Always wear long trousers or jeans while you are installing or removing equipment.
• Always wear safety helmet or hard head and safety shoes before work.
• Always keep the equipment in dry places.
• Always wear safety harnesses/belt while you work in high places.
• Always wear dry clothing and avoid moisture and water.
• Always wear Public Safety Vest, while you work at night.
• Make sure all electrical connections are tight, clean, and dry.
• Make sure that you are well insulated to eliminate electric static charge.
• Always wear dry gloves, rubber-soled shoes, or stand on a dry board or platform.
• Always follow recognized safety standards.
• Always wear correct eye, ear, and body protection.
• Always have second person on-site, while you work in dark, poor ventilation, or high places.
• Make sure that you are well protected against arc flashes, mechanical injury, or other mishaps.
• Make sure that the polarity of wire is correct before installing equipment.
• Always handle equipment with care.
• Do not block the ventilation of equipment.
• Do not put the magnetic parts around the equipment.
• Do not put the objects on top of the equipment.
