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Measuring Setup and Commissioning
optoNCDT 22xx
6.3
Average Setting
The controller is supplied ex factory with the default setting „moving averaging, number of averaging N = 1“
(no averaging activated). Averaging has no effect on linearity.
The controller is capable of the following different averaging methods:
Moving average
-
Recursive average
-
Median
-
The purpose of averaging is to:
Improve the resolution
-
Eliminate signal spikes or
-
„Smooth out“ the signal.
-
Controller
Change averaging
Change number of averaging
1
Booting
AVG
key, see Chap.
6.3.6
.
No
Operation
Serial interface, see Chap.
7.
AVG
key, see Chap.
6.3.6
.
Press and hold
Zero/Reset
(> 5 s), to set the number of aver-
aging N = 1 (for the median N = 3).
i
The preset average type and the number of averaging are saved after switching off.
Averaging Number N
6.3.1
The number of averaging N indicates the number of successive measurement values for which averages are
to be generated before the measured values are to be output. You select the averaging count by pressing the
AVG
key
1
.
The selected number of averaging is indicated by the
LEDs “AVG1” and “AVG2”.
-
Once selected the averaging count remains saved after switching off.
-
1)
When the number of averaging is changed, an error will continue to be sent until the required number
of measurement values for the selected averaging count have been reached (logged). For a number of
averaging of 128, the maximum time required is 13 ms (128 x 0.1 ms = 12.8 ms).
