Yokogawa EXA DC402 Dual-Channel Conductivity Analyzer User Manual
Page 44
IM 12D08E02-01E
Parameter setting 5-19
Code Display
Function
Function detail
X
Y
Z
Default values
mA output functions
30
*mA
mA output range
mA1 = 0-20 mA
0
1.1
mA1 = 4-20 mA
1
4-20
mA2 = 0-20 mA
0
mA2 = 4-20 mA
1
4-20
31
*OUTP.F
mA output functions
Calculated value (Service Code 58)
0
0
1.1
Meas. conductivity linear
1
1
Cond.1/2
Meas. conductivity table
2
2
Meas. temperature
3
3
T1-T2
4 4
Direct/reverse action For rising signal, set for increasing mA out. 5
5
(direct)
(For PI control only)
For rising signal, set for decreasing mA out. 6
6
(reverse)
32
*BURN
Burn function
mA 1 No burnout
0
0.0 No Burn.
mA 1 Burnout downscale
1
mA 1 Burnout upscale
2
mA 2 No burnout
0
No Burn.
mA 2 Burnout downscale
1
mA 2 Burnout upscale
2
33
*RG.mA1(2) PI range
Proportional range for mA control signal
10 %
(use >, ^, ENT keys to adjust value)
34
*tI.mA1(2)
Integral time
100 sec.
(for PI control)
35
*TABL1
Output table for mA1
*0%
Linearization table for mA1 in 5% steps.
*5%
The measured value is set in the main
*10%
display using the >, ^, ENT keys, for
...
each of the 5% interval steps.
...
Where a value is not known, that value may
*90%
be skipped, and a linear interpolation will
*100%
take place.
36
*TABL2
Output table for mA2 Similar to code 35
37
*DAMP
Damping time
Damping on mA output 0-120 sec.
0. sec.
38-39
Not used
EXAMPLES:
A = bi-lineair
B = hyperbolic (2 decades)
C = logarithmic (2 decades)
D = linear
bi-lin = bi-lineair over 2 decades
log 2 = logarithmic over 2 decades
log 3 = logarithmic over 3 decades
hyp 2 = hyperbolic over 2 decades
hyp 3 = hyperbolic over 3 decades
NOTE: Multiply the values from the table with appropriate
factors to get the end-scale value you want.
% of output range
100
0 10 50 100 110
B
50
0
A
C
D
% of conductivity range
Fig. 5-2. Percentage of mA-output range versus
percentage of conductivity range
Table 5-4. Example of output tables
Output
bi-lin
log 2
log 3
hyp 2
hyp 3
0% 0.0 1.0 0.10 1.00 0.10
5% 1.0 1.3 0.14 1.20 0.27
10%
2.0
1.6
0.20
1.82
0.43
15%
3.0
2.0
0.28
1.90
0.61
20% 4.0 2.5 0.40 2.00 0.83
25%
5.0
3.2
0.56
3.75
1.10
30%
6.0
4.0
0.79
4.80
1.36
35%
7.0
5.0
1.12
5.92
1.68
40%
8.0
6.3
1.58
7.00
2.05
45% 9.0 7.9 2.24 8.31 2.49
50%
10.0
10.0
3.16
10.00
3.00
55%
20.0
12.6
4.47
11.85
3.66
60%
30.0
15.8
6.31
14.00
4.33
65%
40.0
20.0
8.91
16.65
5.22
70%
50.0
25.1
12.6
19.50
6.80
75%
60.0
31.6
17.8
23.80
8.25
80% 70.0 39.8 25.1 29.55 11.0
85%
80.0
50.1
35.5
36.70
14.8
90%
90.0
63.1
50.1
48.50
21.8
95%
100.0
79.4
70.8
68.60
36.5
100% 110.0 100.0 100.0 100.0 100.0