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User Manual
5.4.4.1 Threshold with Samples
The Threshold with Samples trigger uses a number of measurements to decide when to take action.
The trigger is able to be configured to act quickly, or slowly, depending on the number of measurement
samples used. A new sample is available every 50ms, with the minimum samples being used for a
trigger being 1 sample, and the maximum being 20 samples.
Threshold with Samples triggers are evaluated every time a new sample is available.
Based on the below “New Trigger” example below, the trigger will alarm or turn on
after 5 of any consecutive 10 samples are above 140V.
Item
Options
Description
Trigger Properties
Line Voltage
Uses the Line to Neutral voltage measurement. Measurement accuracy is between 40
VAC and 300 VAC.
N-G Voltage
Uses the Neutral to Ground voltage measurement. Measurement accuracy is between
0.6 VAC to 300 VAC.
Current
Uses the current measurement, which includes total product current. Measurement
accuracy is between 0.1 A and 30 A.
Temperature
Uses the internal temperature measurement. This should not be treated as an ambient
temperature and will vary drastically based on loading.
Frequency
Uses the frequency measurement. Measurement accuracy is between 45 Hz and 65 Hz.
Average Power
Uses the average power measurement. Measurement accuracy is between 4 W and
7200W.
Crest Factor
Uses the Line to Neutral Voltage Crest Factor.
Power Factor
Uses the Power Factor.
Operator
>
Requires “For” number of measurements to be greater than the threshold.
<
Requires “For” number of measurements to be less than the threshold.
=
Requires “For” number of
measurements to be exactly equal to the threshold.
Threshold
Numerical Range Is the number to be evaluated against all measurements to either trigger or clear the
Trigger.
For
1
–
20
The number of measurements out of the given number of samples being evaluated that
must meet the criteria to trigger or clear the Trigger.
Out Of
1
–
20
The number of consecutive measurements to be evaluated to trigger or clear the Trigger.
