American Power Conversion POWERCELL user manual Introduction, Overview, User replaceable battery

1.0Introduction

1.1Overview

Your PowerCell is a high performance standby uninterruptible power system designed to protect computers and peripheral devices such as monitors, mo- dems, 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 PowerCell rapidly transfers loads (computer equipment) to an alternative power source. This alternative power is derived from a battery within the PowerCell 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 your PowerCell’s batteries are drained. Under normal conditions when the utility voltage is within limits which are safe for your equipment, your PowerCell 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 instruc- tions, you’re ready to enjoy computing free from the worry of power problems and the time consuming process of constantly saving your files!

1.2 User replaceable battery

Your PowerCell provides user-safe access to the batteries for quick, easy replace- ment. When it has been determined that the UPS's battery is weak and requires replacement, a new battery kit can be obtained from the factory - simply call the Customer Service number on the cover of this manual. Your PowerCell's old, worn battery can be returned to the factory for recycling in the new battery kit's packaging.

1.3 Site wiring fault indicator

A site wiring fault indicator warns you of hot-neutral reversal, open ground and overloaded neutral faults. Faulty wiring prevents the safety features and surge protection circuits built into this UPS from operating properly. Check this indicator during installation or whenever your building's wiring has been serviced - call a qualified electrician if the indicator is illuminated.

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