Audible Alarm VFC400-USB User Guide 28
Audible Alarm
The VFC400-USB is fitted with a three tone sounder. You can choose to activate the
three tone sounder when an alarm event has been triggered to provide extra feedback.
This is enabled or disabled in the Advanced Settings when configuring the logger with
Control Solutions VTMC.
The alarm will sound once every four seconds for the first 24 hours, then sound less
frequently to preserve battery life
3
until the alarm is cleared, the unit stops or is re-
configured.
The three tone sounder will temporarily turn off when you are reviewing data.
3 The interval at which the alarm sounds will increase to 8 seconds when the clock passes midnight for a second time (i.e. the
alarm will sound every 4 seconds between 24 and 48 hours, depending on when during the day the alarm was first triggered).
When the clock passes midnight a third time, the interval changes to 12 seconds until the alarm is cleared.
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