Brainchild PR10 User Manual page 79

5.1.1.4.2 Difference
This will log the data only there is at least a difference between the current data and the last
logged data for a period. The difference will be defined by allowance and the period is defined by holding
time.
For example, the allowance is set for 100 and the holding time is set for 100 msec. If current
value is 1000 and last value is 890, when you check the difference is 110. Since this difference is greater
than 100 it is with that value more than the holding time 100 msec, this value will be recorded. If the
difference of current and last recorded value is greater than "difference value" but does not stay for the
duration of holding time this value will not be recorded. So the holding time will define the duration of noise
filter.
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