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Section 5 Functions and Operations
Previous average value comparison makes the measurement value the difference between the present
input value and the average of all previous input values.
Number of
Input
measurements
value
1
V
1
2
V
2
3
V
3
4
V
4
·
·
·
·
·
·
n
V
n
(Vn indicates the input value and Cn indicates the comparative set value used for the next input.)
* Previous average value comparison is performed on confirmed measurement values.
• When the timing hold is set to Normal, the comparison is performed every time.
• When the timing hold is set to a setting other than Normal, the comparison is performed on held values.
f
hp-f
L
(HP-F)
5-42
Display
Comparative set value for next input
value
V
-V
=0
1
1
V
-C
2
1
V
-C
3
2
V
-C
4
3
C
4
·
·
·
V
-C
n
n-1
Cn=
Previous average value comparison is set using the following
parameter.
Parameter
Previous average
value comparison
hp-f
Parameter Setting Procedure
A Press the L [LEVEL] Key for at least
3 s in RUN level to move to the initial
setting level.
0" is displayed on the level/bank display
• "
L
to indicate the initial setting level.
B Press the M [MODE] Key several times
to change the PV display to "amov."
• This parameter is not displayed for the
initial status due to setting level protect.
Refer to "Limiting Key Operations" (P.5-
102) for information on removing setting
level protect.
C Press the S [SHIFT] Key to make the
SV display flash.
• The setting can be changed when the
SV display starts to flash.
C
=V
1
1
1
1
C
= (C
+V
)= (V
+V
-- -
-- -
2
1
2
1
2
2
1
1
C
= (C
+V
)= (V
+V
)+ V
-- -
-- -
3
2
3
1
2
4
2
1
1
1
= (C
+V
)= (V
+V
)+ V
-- -
-- -
-- -
3
4
1
2
8
4
2
·
·
·
1
1
(V
+V
)+
V
+···+ V
------------ -
------------ -
1
2
3
n 1
–
n 2
–
2
2
Set value
Meaning of set value
off
Previous average value
comparison disabled
on
Previous average value
comparison enabled
L
3 s min.
M
S
)
2
1
-- -
3
2
1
+ V
-- -
3
4
2
1
-- -
n
2
0
L
0."
Displays "
L
amov
0
L
0
amov
0
L
00000
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