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About the device
1. Introduction
Thank you for selecting this Uninterruptible Power
Supply (UPS). It provides you with a perfect protection
for connected equipment. The manual is a guide to
install and use the UPS. It includes important safety
instructions for operation and correct installation of the
UPS. If you have any problems with the UPS, please
refer to this manual before calling customer service.
2. Function overview
Guard LCD Series UPS has the following functions:
• The LCD panel enables the easy display of infor-
mation
• Precise voltage stabiliser with sensitive automatic
voltage regulation (AVR)
• Frequency auto sensing
• Short-circuit, overload, surge & high/low voltage
protections
• Cold start & automatic recharge functions
• Intelligent battery management system
• Audible alarms
• Energy saving mode (automatic shutdown when
there is no load during battery operation)
• Reliable protection for computers and electrical
equipment
• User friendly operation
• Monitoring software
3. Placement
• Only use in closed rooms
• Do not expose to extreme heat or humidity
• Always take care for sufficient room around the
device for a proper ventilation
• Never connect other loads than computers or similar
devices (except laser printers) to the UPS.
• Do not use for household appliances
© 2020, Elektro-Automatik GmbH & Co. KG
4. Installation & startup
1) Inspect the UPS upon receipt. Notify the carrier and
dealer if there is damage. The package is recyclable;
save it for reuse or dispose it properly.
Caution! Do not connect a laser printer to the UPS
output. Laser printers can draw very high surge currents
that may cause the UPS output voltage to drop and to
start an undervoltage shutdown.
2) Connect the computer (or fax machine, other equip-
ment) to the UPS and make sure that the computer
is turned off. There are also modem/telephone/fax
protection sockets on the rear, which can protect your
external devices from high voltages like they're caused
by lightning, for example. Works only for standard
phone line equipment, not with ISDN!
3) Connect the UPS to the mains socket.
Attention! Before using the UPS, charge it for at least
8 hours on a wall outlet.
4) Switch on the UPS by pressing the button for ap-
proximately three seconds and then release the button
when the UPS creates a beep. The display should light
up and the UPS starts to work. In case the device is
started during a mains failure (cold start), an acoustic
alarm signal is emitted immediately.
Notices:
The batteries of the UPS are constantly charged and
supervised, as long there is normal operation at mains
presence. The charging time to full level might be ex-
tended by a high load, compared to low load.
In backup operation (mains failure, undervoltage) the
UPS will switch itself off, when the batteries are dis-
charged down to a certain level, in order to prevent
deep discharge. The given backup time is the time the
UPS will work before it switches off. Always observe
the nominal power given in the technical specifications
when connecting consumers, such as PCs. The nom-
inal power of the PC must not exceed the one of the
UPS or else the device might switch off because of
overheating (in normal operation) or untimely battery
discharge (backup operation).
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