Alarm Configuration Options - LogTag Recorders TREL30-16 Product User Manual

Standard Configuration Options

Alarm Configuration Options

The TREL30-16 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 ( ).
Each alarm trigger condition consists of a threshold temperature value, an activation type
(which can be instant, consecutive or accumulative
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
The screen shows an example where:
the upper alarm is triggered when the temperature is -70.0 °C or above for an
l
accumulative time of 10 hours.
the lower alarm is triggered when the temperature is -80.0 °C or below continuously
l
for 1 hour.
Once an alarm has triggered, the alarm indicator ( ) remains shown until the alarm is
cleared (see Clearing an Alarm on
marker remains shown until midnight, then it turns off and the marker for the
2
Instant = one temperature reading is above (below) the threshold
l
Consecutive = temperature readings are above (below) the threshold for the time defined in the activation delay without
l
interruption
Accumulative = temperature readings are above (below) the threshold for the total time defined in the activation delay
l
time, but may not necessarily be sequential
TREL30-16 User Guide
®
Analyzer.
page 25) or the unit is reconfigured. The day alarm
2
) and a delay time, if it is not an
13