Audible Alarm
UTREL30-WiFi User Guide
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The internal secondary backup battery (CR2032 LiMnO
2
coin cell)
should be replaced immediately when the low battery symbol -as
shown- appears. This can be done by a qualified technician.
Failing to replace the battery can result in loss of configuration information and
loss of recorded data, even when the logger is connected to a power supply.
Audible Alarm
The UTREL30-WiFi is fitted with a buzzer. You can choose to activate the buzzer when
an alarm event has been triggered to provide extra feedback. This is enabled or disabled
in the
when configuring the logger with LogTag
®
Analyzer.
Please note, that continual activation of the audible alarm will reduce the
working life of the battery, if no external power is applied. When an alarm event
is triggered, the alarm should be cleared as soon as possible.
The alarm will sound once every four seconds for the first 24 hours, then sound less
frequently to preserve battery life
7
until the alarm is cleared, the unit stops or is re-
configured.
Note: The interval will increase, even if the alarm is re-triggered!
Please see more information about re-triggering alarms in
The buzzer will temporarily turn off when you are reviewing data.
7
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.
