Yokogawa 2-Wire Dual Channel Transmitter/Analyzer FLXA21 - Manual (Page 224)

<Appendix 2 For SC (Conductivity)>
App.2-8
IM 12A01A02-01E 5th Edition : Oct. 31, 2013-00
Table M HNO
3
35..80% (Conductivity unit: S/cm)
Solutions
(Conc.)
Temp.ranges
Solut.
Min.
Solu-
tion 2
Solu-
tion 3
Solu-
tion 4
Solu-
tion 5
Solu-
tion 6
Solu-
tion 7
Solu-
tion 8
Solu-
tion 9
Solut.
Max.
35 % 37.2 % 43.3 % 49.6 % 55.8 % 62 % 75 % 76.6 % 82 % 87.7 %
Tmin. -16 ˚C 0.412 0.400 0.368 0.334 0.288 0.254 0.163 0.147 0.0893 0.0439
2. 0 ˚C 0.576 0.5554 0.507 0.456 0.404 0.352 0.227 0.208 0.128 0.0596
3. 10 ˚C 0.678 0.666 0.614 0.555 0.493 0.438 0.268 0.246 0.153 0.0694
4. 18 ˚C 0.770 0.754 0.700 0.634 0.565 0.506 0.300 0.2769 0.172 0.0772
5. 20 ˚C 0.786 0.776 0.721 0.654 0.583 0.512 0.310 0.290 0.175 0.079
6. 25 ˚C 0.842 0.831 0.784 0.714 0.636 0.559 0.340 0.315 0.185 0.081
7. 30 ˚C 0.895 0.886 0.827 0.754 0.672 0.590 0.370 0.335 0.190 0.083
8. 40 ˚C 1.001 0.995 0.938 0.858 0.774 0.690 0.430 0.375 0.200 0.087
9. 50 ˚C 1.105 1.095 1.038 0.958 0.874 0.790 0.485 0.415 0.210 0.091
Tmax. 60 ˚C 1.205 1.195 1.138 1.058 0.974 0.890 0.530 0.455 0.220 0.095
Tref. 25.0 ˚C 0.842 0.831 0.784 0.714 0.636 0.559 0.340 0.315 0.185 0.081
<User-defined matrixes>
The user-defined temperature compensation matrix is a matrix defined by users. Enter values as
shown in Table 3. The gray areas must be entered.
Table 3 Example of user-defined matrix (Reference temperature (Tref.): 25.0 ˚C, Conductivity unit: S/cm)
Solutions
(Conc.)
Temp.ranges
Solut.
Min.
Solut.
Max.
Solu-
tion 2
Solu-
tion 3
Solu-
tion 4
Solu-
tion 5
Solu-
tion 6
Solu-
tion 7
Solu-
tion 8
Solu-
tion 9
0 % 15 % 1 % 3 % 4 % 5 % 6 % 8 % 10 % 12 %
Tref. (25.0 ˚C) 0 0.410 0.052 0.142 0.183 0.222 0.256 0.313 0.355 0.381
Tmin. 0 ˚C 0 0.215 0.035 0.087 0.113 0.133 0.150 0.176 0.195 0.206
Tmax. 100 ˚C 0 1.13 0.119 0.315 0.407 0.495 0.574 0.717 0.850 0.967
2. 10 ˚C 0 0.293 0.042 0.109 0.140 0.167 0.190 0.226 0.255 0.274
3. 18 ˚C 0 0.455 0.047 0.125 0.163 0.195 0.221 0.267 0.303 0.327
4. 25 ˚C 0 0.410 0.052 0.142 0.183 0.222 0.256 0.313 0.355 0.381
5. 30 ˚C 0 0.557 0.056 0.153 0.200 0.242 0.278 0.338 0.389 0.424
6. 40 ˚C 0 0.551 0.067 0.179 0.233 0.281 0.323 0.396 0.458 0.502
7. 50 ˚C 0 0.645 0.070 0.201 0.265 0.320 0.368 0.454 0.527 0.580
8. 60 ˚C 0 0.742 0.080 0.223 0.293 0.355 0.410 0.507 0.592 0.658
9. 80 ˚C 0 0.936 0.100 0.270 0.350 0.425 0.493 0.612 0.721 0.814
Note: This table is as shown on the screen. The gray areas must be entered.
Set the reference temperature in the Temp. comp. screen (default: 25.0°C).
Input concentration values in the Solution screen.
The values must be entered in ascending order from Solution (Min.) to Solution (Max.). Solution
(Min.) and Solution (Max.) must be entered.
Input temperatures for compensation in the Temp. ranges screen.
Input the conductivity values* at respective temperatures in the Solution (Min.) screen and those
in the Solution (Max.) screen. Input other values, if any, in the Solution n screen.
*: Enter the precompensated conductivity.
All cells of two user-defined matrixes are blank as a default. If any cells are not blank, clear them.
After entering all values, select “Check values?” to verify that there is no error.
This function checks if the matrix is consistently incremental or decremental. If any error is found,
its location is specified.
If there is no error, the matrix is compensated linearly and the blanks of the table (if any) are filled.
If some areas are left empty without running “Check values?”, a 1st/2nd comp. matrix error will be
issued.