GRAPHTEC GLT400 User Manual page 103

(2)-4 Filter
Selects the range to be measured.
Selection item
Off
2
5
10
20
40
<Filter processing>
Filter processing performed on the GLT400 is the moving average shown in the following figure.
n-4
n-3
If the filter setting is 5,
The moving average is "D= ((n-4)+(n-3)+(n-2)+(n-1)+ n)÷5".
If the sample interval exceeds 30 seconds, the average value of data obtained in a sub-sample (30
seconds) is used.
No moving average is calculated.
A moving average is calculated 2 times per sampling interval.
A moving average is calculated 5 times per sampling interval.
A moving average is calculated 10 times per sampling interval.
A moving average is calculated 20 times per sampling interval.
A moving average is calculated 40 times per sampling interval.
n-2
n-1
n
D
CHAPTER 4 Settings and Measurement
Description
4-13