Doc Issues; Overview - ETA Systems 420VA Guide De L'utilisateur

ETA Systems ® - SECURITY ONE UNINTERRUPTIBLE POWER MANAGER
4.0 – DOC ISSUES
Attention:
This equipment does not exceed Class A limits for radio noise emissions from digital apparatus set out in the
Radio Interference Regulation of the Canadian Department of Communications (Class B compliance
optional). Operation in a residential or commercial area may cause unacceptable interference to radio and
TV reception requiring the owner or operator to take whatever steps are necessary to correct the
interference.
5.0 – OVERVIEW
General
The ETA Systems Security One Series of Uninterruptible Power Supplies are the most advanced, line-
interactive, true sinewave UPM products available for your application. Each model is designed to provide
total protection for your system from a complete range of power quality problems. Security One UPM
solutions will protect your installation from normal mode voltage impulses, electrical noise, sags and surges,
protracted brownouts, and complete blackouts. And because each Security One UPM contains an isolation
transformer, it completely eliminates common mode (neutral to ground) voltages that are a constant threat to
the reliable operation of microprocessor based systems. When AC power is present, Security One
constantly filters and conditions the power supply. When AC power fails, Security One uses its internal,
maintenance-free battery to supply reserve power to your computer system. Regardless of whether or not
commercial power is present, Security One is constantly on the job, ensuring a fully conditioned, safely
managed interface between your computer system and its electrical power supply. Figure 1 illustrates the
basic operation of the Security One UPM.
Sinewave Output
The output voltage of all Security One UPM models is a true, low distortion sinewave – the kind that the
utility company provides to the wall outlet and the kind that your equipment is designed to work with. This
provides guaranteed compatibility even with the most sensitive electronic loads.
Voltage Manager™
The voltage of the AC power source can often fluctuate from its nominal rating. These deviations in line
voltage are tolerated quite well by most switch mode power supplies (the type used in your computer
system). However, some UPS products may misinterpret these transient changes in line voltage as a power
outage and erroneous battery operation may occur. This type of activity results in unnecessary strain on the
battery and may eventually shorten its life. ETA Systems's Security One UPM products feature Voltage
Manager – a circuit that constantly monitors the AC power source. If minor changes in AC voltage occur,
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