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6-2-2
Operating Parameter 2 (Previous Average Value Comparison)
When the K3TS is set to
in operating parameter 2, the K3TS detects only
values fluctuating rapidly, dismissing slowly fluctuating ones such as values
caused by the decentering of a sensing object or the sagging of a belt con-
veyor.
Concept of Previous Average Value Comparison
Number of
measuring
operations
Input value
Displayed value
Compared with present value
1
V
1
V
1
-- V
1
= 0
C
1
= V
1
2
V
2
V
2
-- C
1
C
2
= 1/2(C
1
+ V
2
) = 1/2(V
1
+ V
2
)
3
V
3
V
3
-- C
2
C
3
= 1/2(C
2
+ V
3
) = 1/4(V
1
+ V
2
) + 1/2V
3
4
V
4
V
4
-- C
3
C
4
= 1/2(C
3
+ V
4
) = 1/8(V
1
+ V
2
) + 1/4V
3
+ 1/2V
4
n
V
n
V
n
-- C
n--1
1/2
n--1
(V
1
+ V
2
) + 1/2
n--2
+...+ 1/2V
n
Example of Previous Average Value Comparison when selecting Sampling
hold
Input waveform
0 [V]
ON
OFF
TIMING input
Number of measuring
operations
Input value
Displayed value
Compared with present
value
1
4.0
4.0 -- 4.0 = 0
4.0
2
3.0
3.0 -- 4.0 = --1.0
1/2(4.0 + 3.0) = 3.5
3
4.5
4.5 -- 3.5 = 1.0
1/2(3.5 + 4.5) = 4.0
4
3.0
3.0 -- 4.0 = --1.0
1/2(4.0 + 3.0) = 3.5
5
8.5
8.5 -- 3.5 = 5.0
1/2(3.5 + 8.5) = 6.0
! $
Section 6-2
Summary of Contents for K3TS
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