APC BK600EI, BK400EI, BK250EI 0Introduction, 1Overview, 2Userreplaceablebattery, 3Optionswitches

1.0Introduction

1.1Overview

The UPS is a high performance standby uninterruptible power source designed to protect computers and peripheral devices such as monitors, modems, tape drives, etc. from utility line failures which could result in the loss or corruption of valuable data. In the event of a utility failure such as a blackout, brownout, or sag, the UPS rapidly transfers loads (computer equipment) to an alternative power source. This alternative power is derived from a battery within the UPS and provides the user with ample time to save files and properly close operations. A chart in section 9.0 shows how much time your equipment can remain operating during a utility failure before the UPS’s batteries are drained. Under normal conditions when the utility voltage is within proper limits, the UPS maintains the battery in a charged condition and serves to isolate your equipment from surges and high frequency electrical noise.

After following the installation procedures and reading all the safety instructions, your computer equipment will be protected from hardware damage and loss of data caused by power problems.

1.2Userreplaceablebattery

The UPS provides user-safe access to the batteries for quick, easy replacement. The UPS's Test function (400VA and 600VA models) helps you determine when the battery is weak and requires replacement. New battery kits can be obtained from your dealer or the factory — simply call the Customer Service number on the cover of this manual. Your UPS's old, worn battery can be returned in the new battery kit's packaging for recycling.

1.3Optionswitches

Option switches allow you to adjust the UPS for applications where frequent utility voltage fluctuations cause the UPS to transfer to on-battery operation too often. Audible alarm functions can be altered so that warning of utility failure or low battery conditions are given when desired.

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