APC Back-UPS 1250 Specifications download pdf (Page 6)

Installation and Operation Back-UPS 1250, 1300, 15006

Power-Saving LCD screen

The display interface can be configured to remain continuously illuminated or to extinguish after a

period of inactivity to save electricity.

1. Continuous Illumination mode: Press and hold

DISPLAY button for two seconds. The display

will illuminate and the

Back-UPS will beep to confirm Continuous Illumination mode is activated.

2. Power-Saving mode: Press and hold

DISPLAY button for two seconds. The display will extinguish

and the Back-UPS will beep to confirm Power-Saving mode is activated. While in Power-

Saving mode, the display will illuminate if a button is pressed, it will extinguish after 60 seconds

of inactivity.

Back-UPS sensitivity settings

The Back-UPS detects and reacts to line voltage distortions by transferring to battery backup power to

protect connected equipment. In situations where either the Back-UPS or the connected equipment is too

sensitive for the input voltage level it is necessary to adjust the transfer voltage.

1. Connect the Back-UPS to a utility power source. Be sure the Back-UPS is turned off.

2. Press and hold the

POWER button for six seconds. The load capacity bar will flash on and off, to

indicate the Back-UPS is in Program mode.

3. Press

the POWER button again to scroll through the menu options. The Back-UPS will beep to

confirm the selection.

Refer to the table for an explanation of the transfer voltage sensitivity levels.

Front panel buttons and display

Use the buttons on the front panel of the Back-UPS and the display interface to configure the Back-UPS.

Generator Sensitivity Default Sensitive Loads

Low sensitivity Medium sensitivity (Default) High sensitivity

78-142 Vac 88-139 Vac 88-136 Vac

Use this setting with equipment that is

less sensitive to fluctuations in voltage

or waveform distortions.

Use this setting under normal operating

conditions.

Use this setting when connected

equipment is sensitive to any minor

fluctuations in voltage or waveform

distortions.

Front panel



MUTE button



POWER button



DISPLAY button



Display

On Line: The Back-UPS is supplying conditioned utility power to connected equipment.

Power-Saving Function: The MASTER and CONTROLLED outlets are enabled. The power-saving feature is

active when the master device goes into Standby or Hibernation mode.

bu109b

bu109c

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APC Back-UPS 1250 Specifications Page 6

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