3
unqualified to replace the battery, do not open battery door. Refer to
qualified service personnel.
INTRODUCTION & SYSTEM DESCRIPTION
Congratulations on choosing the Liebert PowerSure™. It provides continuous,
conditioned power to microcomputers and other data processing equipment.
Upon generation, AC power is clean and stable. However, during transmission, it
may be subject to load variations or accidents which cause power problems like
low voltage, voltage spikes, or complete power failure. These problems may
interrupt computer operations, cause data loss, or even damage equipment.
The UPS provides protection from many of these disturbances. It smoothes out
voltage variations and, in the event of complete power failure, it supports
equipment long enough for an orderly shutdown. These compact UPS units are
available in three ratings: 250, 400, and 600 VA. This manual includes
specifications for each model.
Normally, the UPS filters and connects AC utility input power to its AC outputs;
but when the UPS senses a power failure, it lights the battery LED (400 & 600
VA only) and provides AC power to equipment through a maintenance free,
sealed, lead acid battery.
The UPS contains a counter which automatically initiates a 15-second battery
test every 7 days and upon start-up. The UPS resets the counter after back-up
operation, manual battery test, or if the UPS is switched OFF. The operator may
perform a manual battery test by pressing the BATTERY TEST button on the
back of 400 and 600 VA models.
A control circuit monitors power input and battery condition and upon sensing a
fault, sounds an alarm and flashes a visual indication of the UPS status. In
addition, the 400VA and 600VA UPS models have a communications port which
enables the UPS to inform a computer equipped with SiteNet® software of the
power failure. SiteNet® automatically saves data and performs an orderly
shutdown. Cables and software are available as optional computer/LAN
Interface Kits. Consult your dealer for the kit suitable for your application.
CONDITIONS OF USE: The utility receptacle must be within 6 feet of the UPS.
This model utilizes a 110V to 120V AC 60 Hz supply voltage. Models are
available for other supply voltages.
Your UPS is designed to protect only Communication and Data Processing
equipment. Maximum load must not exceed that shown on UPS rating label. If
uncertain, consult your dealer or representative.
Placing magnetic storage media on top of the UPS may result in data corruption.
CAUTION: This equipment complies with Part 15, Subpart B of FCC rules for
Class B computing devices. Equipment operation in residential areas may cause
interference to radio and TV reception. The operator must take necessary steps
to correct interference.
