American Power Conversion 250 Introduction, Overview, Surge suppression and EMI/RFI filtering

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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, swell 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 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 Surge suppression and EMI/RFI filtering

The UPS provides high performance surge suppression and EMI/RFI (electro- magnetic and radio frequency interference) filtering. The UPS suppresses surges defined by the ANSI C62.41 (formerly IEEE 587) Category A and B standard to levels well below that which is compatible with your computer.

1.3 Remote interface

A remote computer interface port (400VA and 600VA models) capable of signal- ling utility failure and low battery conditions is provided for unattended shut- down of computer operations. When teamed with PowerChute UPS monitoring software, you may select operation of power event logging, power event notifi- cation, automatic restart upon power restoration, and battery conservation features.

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Contents Back-UPS Important safety instructions Please save this manualTable of contents Introduction OverviewSurge suppression and EMI/RFI filtering Remote interfaceSafety EnglishSécurité Sicherheit Deutsch¡ Seguridad Installation PlacementReceiving inspection Load typesConnecting to the utility Battery chargingConnecting your equipment to the UPS Example labels found at system equipment rear panels Test for proper operation Overloads Principles of operation Noise and surge suppression Load transfer switch Battery chargerBattery InverterMonitoring and control electronics TransformerOperation during a utility failure Page17 Controls and indicators Power I/0 switchTest switch on units so equipped Audible alarmUPS monitoring PowerChute SoftwareInterface Kits Computer interface port Difficulty Difficulté Schwierigkeit VorsichtDificultad Troubleshooting chart KmjSgWh KjnndSgW TRpnW RTodji oj oRfWPage26 Replacing the battery Obtaining Service Storage conditions Storing the UPSExtended storage Run time versus load Specifications Declaration of Conformity Limited Warranty Life support policy∗ Mailing