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Crestron CEN-UPS1250 Uninterruptible Power Supply
10. Battery Replacement Date
11. Do Quick Selftest
12. Do Runtime Calculation
13. Display Beep Test
14. Screen Saver On/Off
15. Reset To Default
AUDIBLE ALARM setting – When the alarm is set to ON, it indicates an abnormal
condition with the power or unit. It provides an audible tone (beep) whenever the
unit detects an internal problem or a problem with an externally connected battery
pack. When it is set to OFF, the audible tone is silenced.
“AUDIBLE ALARM” Screen
AUDIBLE ALARM:OFF
PRESS TO CHANGE
SENSITIVITY setting – This feature is used to adjust how the unit reacts to input
voltage waveform distortion and momentary power fluctuations. It allows you to
adjust the sensitivity of the CEN-UPS1250 to LOW, MEDIUM and HIGH using
the up/down arrow buttons.
The SENSITIVITY adjustments have the following values:
• HIGH – This should be used when the connected equipment is sensitive to
momentary low voltage or brief power fluctuations. When it is set to HIGH,
the unit is very sensitive to voltage distortion and is more likely to switch
back and forth to battery power than it would at a MEDIUM or LOW
setting.
• MEDIUM – This is the default setting suitable for most situations.
• LOW – this setting should be used when the CEN-UPS1250 frequently goes
to battery (even though the utility voltage appears normal).
“SENSITIVITY” Screen
SENSITIVITY:MEDIUM
PRESS TO CHANGE
DISPLAY DIMMER setting – This lets you set a brightness level for the display of
HIGH, LOW or OFF. Repeatedly pressing the up/down arrow buttons allows you to
set the brightness of the display. Once the display brightness is set to the desired
level, press the SETUP button to store the setting.
NOTE: Even when the display dimmer is set to OFF, the screen will turn back on
momentarily when there is a significant change in system status, such as a power
outage or a low battery condition.
Operations & Installation Guide – DOC. 6635A Uninterruptible Power Supply: CEN-UPS1250 • 27