Riello MULTI SENTRY MST 100, Руководство пользователя, Страница: 44 / 56

A
COUSTIC SIGNAL
(B
UZZER
)
UPS status and faults are signalled via a buzzer which emits a modulated sound depending on different UPS operating conditions.
The different types of sounds are described below:
Sound A:
This signal is emitted when the UPS is switched on or off using the appropriate buttons. A single beep confirms ON,
battery test activation, the cancellation of programmed shutdown.
Sound B:
This signal is emitted when the UPS switches to bypass to compensate for current surges due to the insertion of a
distorted current.
Sound C:
This signal is emitted when the UPS switches to battery operation before No Battery is signalled (sound D). It is
possible to silence signals (see "Graphic display" paragraph).
Sound D:
This signal is emitted when battery operation reaches No Battery alarm threshold. It is possible to silence signals
(see "Graphic display" paragraph).
Sound E:
This signal is emitted when an alarm or lock is detected.
Sound F:
This signal is emitted when a fault is detected: battery overvoltage.
Sound G:
This type of signal is emitted when the battery test fails. The buzzer beeps ten times. This alarm signal is emitted
while the "replace batteries" LED is on.