LogTag Analyzer Temperature Recorder User Manual page 39

This table shows how different conditions would result in the Alert Indicator flashing or
not:
What the LogTag recorded
2 readings of 20ºC or above, return to
normal, 8 readings at 0ºC or below, return
to normal, 4 readings of 20ºC or above,
return to normal
4 readings of 20ºC or above, return to
normal, 4 readings of 20ºC or above
Separate alert conditions are useful if you expect the monitored product to encounter
temperatures lower than the lowest possible alert temperature. In this case a flashing
alert indicator may not necessarily indicate an unfavourable condition was encountered.
In programs where such conditions are monitored the lower alert should be turned off.
Chapter 4 Preparing LogTag(s) for use
What the LogTag indicated
Neither alert condition is met.
The maximum number of consecutive
out-of-spec readings is only 2 (5 required, the 8
readings below 0ºC do not count towards alert
readings).
The total out-of-range events equals 2 + 4 = 6.
The alert condition is 7 total, so the alert does
not go off, as again the 8 readings below 0ºC
do not count towards alert readings.
No Flashing Red Alert Indicator
The first alert condition is not met, as the the
maximum number of consecutive out-of-spec
readings is only 4 (5 required.)
The second alert condition however IS met
since the total out-of-range events equals 4 + 4
= 8. The alert condition is 7 total. so the alert
DOES go off.
Flashing Red Alert Indicator
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