Alarm Configuration Options
The UTRED30-WiFi can display an alarm if either of the configured alarm trigger conditions have been met. This is indicated on the display by showing the Alarm Indicator (
) and the Day Alarm Marker for
today (
).
If an alarm is triggered, a notification is also sent immediately to your LogTag® Online account.
Each alarm trigger condition consists of a threshold temperature value, an activation type (which can be instant, consecutive or accumulative1 Instant = one temperature reading is above (below) the thresholdConsecutive = temperature readings are above (below) the threshold for the time defined in the activation delay without interruptionAccumulative = temperature readings are above (below) the threshold for the total time defined in the activation delay time, but may not necessarily be sequential.) and a delay time, if it is not an instant alarm.
If an alarm trigger condition requires readings to exceed an upper threshold temperature it is called an upper alarm. If an alarm trigger condition requires readings to go below a lower threshold it is called a lower alarm.
All alarm trigger conditions are configured in the Alarm Settings tab during configuration of the logger with LogTag® Analyzer.
The screen shows an example where:
- the upper alarm is triggered when the temperature is 10.0 °C or above for an accumulative time of 10 hours.
-
the lower alarm is triggered when the temperature is -0.5 °C or below continuously for 1 hour.
Once an alarm has triggered, the alarm indicator () remains shown until remains shown until midnight, then it turns off and the marker for the previous day is shown (
) to indicate the alarm was registered against what is now the previous day. When midnight passes next, this marker will move to and so on.
Note: As soon as an alarm is triggered, the corresponding delay time (but not any others) resets to zero and alarm processing starts again. The alarm processing for all other alarm delays is not affected. Therefore, accumulative or consecutive alarms will re-trigger, if the alarm conditions are met again, and the Alarm Indicator () and the Day Alarm Marker () will be shown, even if any previous alarm was cleared. Clearing an Alarm does not reset any of the delay values.