APC S15 Operations Instructions download pdf (Page 40)

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AUDIBLE ALARM Setting — when set to ON (Figure 22), provides an audible

tone whenever the unit detects a problem with itself, or with an externally connected

battery pack. In the OFF setting, the audible tone is silenced.

Figure 22. AUDIBLE ALARM Setting Screen

SENSITIVITY Setting — press the SETUP push button to advance to the

Automatic Voltage Regulation (AVR) Sensitivity function. This feature adjusts how

the UPS reacts to abnormal input voltage or momentary power fluctuations. It allows

you to adjust the sensitivity of the S10 and S15 to LOW, MEDIUM, and HIGH

(Figure 23) using the SETUP and Up/Down Arrow push buttons. The Sensitivity

adjustments have the following value:

HIGH Sensitivity — should be used when the connected equipment is sensitive to

momentary low voltage or brief power fluctuations. For example, a DVD player

resets when the lights flicker (or the power amp is turned on.)

MEDIUM Sensitivity — is the default setting suitable for most situations.

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APC S15 Operations Instructions Page 40