Programmable linearization function, Important – Fujimoto Fuji Differential Pressure Transmitter FKK 4 User Manual
Page 32
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Programmable linearization function
User can set output compensation
against the input using 14
compensation points, (X
1
, Y
1
), (X
2
,
Y
2
)…(X
14
, Y
14
). Each compensation
value between (Xn, Yn) and (Xn+1,
Yn+1) is connected by first order
approximate formula.
This linearization function is useful to
compensate the tank figure in level
measurement application and the flow
rate of steam or gas in flow measure-
ment application .
Functions for LINEARIZE are
available for FXW Version 6.0 and
upward.
By pressing INC at display of 2 , the
display is shifted to the setting of LIN-
EARIZE POINT 3 . Press CHNG at
display of 3 and input POINT XX to
be compensated. Then press ENT and
the display will be shifted to 5 .
Press INC at display of 5 and the dis-
play will be shifted to y for selection of
<1> Lin. point: LP and <2> Comp.
value : CV.
Select <1> Lin. point: LP at display of
6 and input XXX.XX% to each point
(LP1-LP ).
At the completion of input to all the
compensated points, press ENT twice
and the write of LP will be finished.
At this time, the display is shifted to 6 .
Select <2> Comp. point: CV at display
of 6 and input XXX. XX% to each
point (CV1-CV ) in the same manner
as noted in <1> LP. At the completion
of input to all the compensated points,
press ENT twice and the write of CV
will be finished.
At the completion of write of compen-
sated program for LP/CV, press CL
twice at the display of 6 for shifting to
2 . Then, press CHNG for selection of
<1> INVALID and <2> EFFECTIVE
of 19 . At display of 19 , press <2>
and the display will be changed to
EFFECTIVE.
for display
11
19
H-2:
LINEARIZE
H-3: LINEARIZE
CHANGE
20
H-3: LINEARIZE
Set Output Mode
LIN-LIN or SQR-SQR
21
< 1 > INVALID
CHNG OK? < ENT/CL >
INC
2
3
4
5
1
CL
2
< 2 > EFFECTIVE
< 1 > < 2 > < CL >
< CL >
CHNG
CHNG
CHNG
CHNG
CL
CL
CL
CL
CL
CL
CL
CL
6
CL
CL
ENT
INC
1
2
INC
ENT
INC
Next
parameter
15
INC
INC
INC
16
9
15
16
7
CL
H:
LINEARIZE
< INC > < CHNG >
INVALID
H-1:
LINEARIZE
< INC > < CHNG > < CL >
INVALID
EFFECTIVE
H-2:
LINEARIZE
< INC > < CHNG > < CL >
POINT 0
H-2:
LINEARIZE
< INC > < CHNG > < CL >
POINT XX
H-3:
LINEARIZE
< ENT > < CL >
POINT 0
H-3:
LINEARIZE
< 1 > < 2 > < CL >
< 2 >Comp value:CV
< 1 >Lin. point:LP
H-4:
LINEARIZE
< INC > < CNG/ENT/CL >
LP1 XXX.XX%
H-4:
LINEARIZE
< INC > < CNG/ENT/CL >
LP3 XXX.XX%
for display
for display
15
INC
7
16
10
15
I : Rerange
16
8
H-4:
LINEARIZE
< INC > < CNG/ENT/CL >
LP2 XXX.XX%
H-4:
LINEARIZE
< INC > < CNG/ENT/CL >
LP14 XXX.XX%
CHANGE
Input the value of
point and press
ENT (POINT XX)
In the case
where POINT
XX has been
set
For DP
CL
LP1
LP2
LP3
LP14
INC
DEC
Change of compensated
point for LP
Note) In the key stroke for Linearization, please set
each parameter in the below sequence.
1. Set the number of compensation points in the
range of 2 to 14.
2. Set each linearization option point (LP*) correctly,
and write them.
3. Set each compensation value (CV*) correctly, and
write them.
4. Set linearization option into EFFECTIVE and
write.
Important