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UPS operations 36
UPS provides sine wave power from the battery reserves for as long as the distortion is present. In areas
with poor utility power or where the UPS input power comes from a backup generator, continuous
waveform distortion causes the UPS to switch to battery power. To minimize battery use, experiment with
different settings for this dial. As the dial is turned clockwise, the UPS becomes more tolerant of variations
in the input power's AC waveform.
NOTE: While testing, operate connected equipment in a safe test mode so the effects do not disrupt critical
operations.
For the location of rear panel components, see "UPS R/T2200 NA/JPN/TWN rear panel (on page 8)"
or "UPS R/T2200 INTL rear panel (on page 9)."
Powering down the UPS
1. Shut down all connected load devices.
2. Press the Power On/Standby button. Power to the output receptacles ceases.
3. Disconnect the UPS from utility power.
4. Wait at least 60 seconds for the UPS internal circuitry to discharge.