Ultraflux Uf 811, User Manual, Page: 52 / 104

52
NT UF 811 CP GB (e) / June 2015
7) Logger variables
For each of the variables of the logger, one of the following functions can be selected:

AVG: average value over the recording period,

MIN:
minimum value over the recording period,

MAX:
maximum value over the recording period.
8) Log on variation
The variation mode of the logger is used to reduce the recording period for the data in the logger.
To do this, define the maximum variation percentage with regard to the previous recording. If the variation
measured is greater than this maximum, recording is instantly triggered (no more than once per second).
Comment: A percentage equal to 0% disables the associated value.
The following figure shows the reduction in the period of the logger when the flow experiences a variation:
The vertical lines (blue) show when logger recording is triggered. If the variation of the flow is greater than
the configured threshold, the logger forces a recording.
Time (s)
Flow
(m
3
/s)
Flow measurement
Logger