Fujimoto Fuji Differential Pressure Transmitter FKK 4 - Manual (Page 22)

16
Output mode
The output mode is used to select the
proportional mode (proportional to in-
put differential pressure) or square
root extraction mode (proportinal to
flow rate) for output signal (4 to 20
mA). In case of square root extraction
mode, the cut point and the mode
below the cut point can be set. Under
display 2 , press <INC> or <DEC> for
selection of the square root extraction
mode or proportional mode.
Change of output mode
<INC> <DEC>
a OUT=LIN
b OUT=SQR
Since display 7 is presented when the
square root extraction mode is
selected, the low flow cut point should
be set.
Cut point is adjustable within the range
of 0.00 to 20.00%. The cut point is
used for stabilizing output near 0%
when the square root extraction mode
is selected for output signal. There are
two modes; in one mode, proportional
output is selected for output below a
cut point (Fig. A) and in the other
mode, output is forcibly reduced to 0%
for output below a cut point (Fig. B).
8: OUTPUT MODE
XMTR:DP
OUT=LIN
< INC > < CHANGE >
8-1: MODE CHANGE
XMTR : DP
OUT=LIN
< INC > < ENT > < CL >
8-1: MODE CHANGE
XMTR : GP
OUT=LIN
< ENT > < CL >
8-1: MODE CHANGE
XMTR:DP
OUT=SQR
CHNG OK? < ENT/CL >
8 : OUTPUT MODE
XMTR:GP
OUT=LIN
< INC > < CHANGE >
8-2: MODE WRITE
XMTR:DP
OUT=SQR
8-3: LOW CUT
POINT= ЧЧ . ЧЧ %FLOW
MODE=
< CHANGE > < CL >
< ENT > < CL >
8-5: POINT WRITE
ЧЧ . ЧЧ %FLOW
8-7: LOW CUT MODE
< 1 > LINEAR
< 2 > ZERO
< 1 > < 2 > <CL >
8-7: MODE CHANGE
LINEAR
CHNG OK? < ENT/CL >
8-8: MODE WRITE
LINEAR
8-1: MODE CHANGE
XMTR:DP
OUT=LIN
CHNG OK? < ENT/CL >
*1
<OUTPUT MODE
CHANGE>
8-4: POINT CHANGE
ЧЧ . ЧЧ %FLOW
8-4: POINT CHANGE
ЧЧ . ЧЧ %FLOW
8-6: LOW CUT MODE
ZERO
< CHANGE > < CL >
8-7: MODE CHANGE
ZERO
CHNG OK? < ENT/CL >
8-8: MODE WRITE
ZERO
OUT=LIN
LIN/
D
8-2: MODE WRITE
XMTR:DP
OUT=LIN
INC 1 1
INC
(a)
(DP) GP, AP, LL (Liquid Level)
2 CL ENT
ENT 5 CL ENT 3 CL
CL
4
ENT 6
CHNG CL
CHNG CHNG
7
ENT CL
ENT CL
CL
8
1
OUT=SQR 2
9
CHNG
10
8-6: LOW CUT MODE
LINEAR
< CHANGE > < CL >
11 CL 12
CL 16 ENT
13 CL 2 1
ENT CL 14
15 17
< INC > *1
*2 0.00% Cut Point 20.00% FLOW
Note) GP, AP, LL : OUT = LIN only
< DEC > Available Mode
In case of OUT= SQR In case of OUT=LIN
CHNG
Menu No.9
(a)
*2
CHNG OK? < ENT/CL >
= LINEAR or ZERO
Output Output
Differential
input
Differential
input
Fig. A: With linear
output selected in
low cut mode Fig. B: With zero
output selected in
low cut mode
Under display 13 , linear or zero out-
put is selectable for output below the
cut point.