SI Analytics TitroLine 7500 KF Mode D'emploi page 121

Chapter 4 Method Parameters
121
Fig. 91
In this type of titration, linear step width is used after the continuous titration stage.
Titration direction (only dead stop titration mode)
The titration direction can be set to "increase" or "decrease". For instance, if you wish to perform a sulfurous
titration with iodine solution you have to select "increase". For an iodometric back titrating with Sodium
thiosulfate you have to select "decrease".
Fig. 92
Pretitration
If the titration agent consumption is roughly known, you can set a pretitration volume on the <Pretitration>
menu. In this process, a defined volume is dosed ( = pretitrated) following the initial waiting time. After the
addition of the pretitration volume, another defined span of time is observed as the waiting time before the next
titration step is added. The pretitration volume is automatically added to the titration agent consumption. The
pretitration volume can be set from 0.000 and 99.999 ml, the possible range for setting the waiting time following
pretitration is between 0 and 999 seconds.
Fig. 93
Polarization voltage
Polarisation voltage in mV can be set for KF and dead stop titration.