Yokogawa EXA ISC202 2-wire Conductivity Transmitter/Analyzer - Manual (Page 86)

IM 12D06A03-01E
2-14 Appendix
Sample 4
Concentration of hydrochloric acid
Meas. range 30-40%
Reference temp. 35°C
Temp. compensation Enter temperature compensation coefficient,
Relate concentration to conductivity by table
START
Service code 20
Service code 31
Service code 35
Select 1
0% output --> 30 %
100% output --> 40%
Service code 55
TEMP
Calibration in Air
Calibration
35 °C (Default)
NaCl --> NO
TC --> YES ( here use [MODE] key to escape )
Calibrate conductivity value in actual operation
e.g. 34% HCl corresponds to conductivity 772 mS/cm
Select 1
Enter conductivity values corresponding to output current values.
Table (below) relates output current to conductivity at 35°C
Service code 21 TC=1.24 (data from customer)
Output
current (%)
0
20
40
60
80
100
HCl conc. (%)
30
32
34
36
38
40
Conductivity
(mS/cm)
845
840
772
731
688
644
sample4E.eps