East EA990G5, Руководство по обслуживанию

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1 Safety precautions
1.1 Hazards
1.As dangerous voltage exists in the UPS and the battery holder, installation and maintenance are only
completed by a professional engineer holding professional electrician qualification of the company or authorized
by the company.
2.Operators and maintainers, and professional technicians should receive full training on safe use and
equipment maintenance and work on the equipment after enough precautionary measures are taken and personal
safety equipment is used.
3.As the UPS is connected with the battery, voltage may exist on its output end even if it is not connected
with AC mains supply.
4.When the UPS is moved or rewired, the inputs, such as mains supply, the battery, etc., must be
disconnected, corresponding operation may be performed after the UPS powers down fully (more than 10min),
and otherwise the voltage may exist on its output end.
5.Before use, the UPS is reliably earthed to ensure personal safety and the normal use of the UPS.
6.When the UPS is maintained, the maintainer must wear insulated shoes and use insulated tools.
7.If temperature and humidity exceeds the limit value specified in the user manual, do not operate the
equipment.
8.Before maintenance of the UPS, all inputs and outputs of the UPS (including battery input) must be
disconnected.
9.Do not place the battery in fire to avoid explosion and endangering personal safety.
10.Do not stop the protector and ignore warnings, cautions and precautionary measures provided in the
manual and equipment nameplate.
1.2 Warning
1.Do not open the battery cover or damage the battery. If you are exposed to electrolyte, immediately wash
with plenty of clear water and seek medical advice.
2.Remove watch, ring and other metal article, wear insulating gloves and use the tools with insulated handle
during work on the battery.
3.During equipment operation, make sure that all sides and internal panels are securely fixed and front door
is closed.