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47DAC OPERATING MANUAL EM-9518-B Rev.4
12. AVERAGING INPUT
Moving or simple average processing of measured values is configurable (Table 1). Figures 1 and 2 show the difference of
the moving average and simple average. The number of samples in averaging can be selected in Table 2.
■
TABLE 1: AVERAGING TYPE
MAIN DISPLAY
FUNCTION
DEFAULT VALUE
Moving average
Simple average
■
DIFFERENCE OF AVERAGING TYPES
Figure 1: Moving average
Figure 2: Simple average
Measured value
Sampling
Moving averaging
Average
50 milliseconds
(1)
(2)
Display
value
Refreshing display
50 milliseconds
Measured value
Sampling
Simple averaging
50 milliseconds
Average
Average
(1)
(2)
Display
value
Refreshing display
50 milliseconds × averaging time (4)
(1) The moving average operation starts immediately
after the power is on, or the averaging type or time is
set. Until the sampling No. reaches the set value, all
samples are averaged every 50 milliseconds.
(2) After the sampling No. reaches the set value, a new
sample is added to be averaged with the oldest one
omitted.
(3) Such operation is repeated. The display is updated
every sampling period (50 milliseconds, depending
on the display refreshing rate).
(1) The simple average operation starts immediately
after the power is on, or the averaging type or time
is set. The set samples are averaged.
(2) The display is updated at the interval of ‘sampling
period × averaging time’, depending on the display
refreshing rate.
