AUDIBLE ALARM Setting – When the alarm is set to ON, as shown in Figure 22, 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.
Figure 22. AUDIBLE ALARM Setting Screen
SENSITIVITY Setting – Press the SETUP pushbutton to advance to the SENSITIVITY function. This feature is used to adjust how the S Type unit reacts to input voltage waveform distortion and momentary power fluctuations. It allows you to adjust the sensitivity of the S10 and S15 to LOW, MEDIUM, and HIGH (as shown in Figure 23) using the SETUP and Up/Down Arrow pushbuttons. The Sensitivity adjustments have the following values:
HIGH Sensitivity – This should be used when the connected equipment is sensitive to momentary low voltage or brief power fluctuations. When it is set to HIGH sensitivity the unit is very sensitive to voltage distortion and is more likely to switch back and forth to battery power than it would under a MEDIUM or LOW sensitivity setting.
MEDIUM Sensitivity – This is the default setting suitable for most situations.
LOW Sensitivity – This setting should be used when the UPS frequently goes to battery (even though the utility voltage appears normal).
