Instruction manual
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10 APPENDICES 
10.1  Appendix 1 – pH Buffer Values at Various Temperatures 
The following table shows the various pH values at different temperature of the 
solution during calibration. 
Temperature 
(
o
C) 
pH 4.01  pH 6.86  pH 7.00  pH 9.18  pH 10.01 
0  4.01 6.98 7.12 9.47 10.32 
5  4.01 6.95 7.09 9.38 10.25 
10  4.00 6.92 7.06 9.32 10.18 
15  4.00 6.90 7.04 9.27 10.12 
20  4.00 6.88 7.02 9.22 10.06 
25  4.01 6.86 7.00 9.18 10.01 
30  4.01 6.85 6.99 9.14 9.97 
35  4.02 6.84 6.98 9.10 9.93 
40  4.03 6.84 6.97 9.07 9.89 
45  4.04 6.83 6.97 9.04 9.86 
50  4.06 6.83 6.97 9.01 9.83 
55  4.08 6.83 6.97 8.99 9.81 
60  4.10 6.84 6.98 8.96 9.79 
70  4.12 6.85 6.99 8.92 9.76 
80  4.16 6.86 7.00 8.89 9.74 
90  4.20 6.88 7.02 8.85 9.73 
10.2  Appendix 2 – Abbreviations Used in LCD 
Abbreviation  Description 
ASy 
Asymmetrical mode 
AtC 
Automatic Temperature Compensation 
bUFF 
Buffer 
CAL 
Calibration 
C.ºC 
Calibration temperature 
CdAt 
Electrode properties 










