Metrohm 719 S Titrino - Manual (Page 15)

2.4 Tutorial
719 S Titrino
11
2.4.2 Development of a method, titration of an acid
Selection of the mode
4 × • Press repeatedly until "SET" appears in the display. For a description of the SET mode see page 30ff. • Confirm "SET" with • Now select the measured quantity: Press repeatedly until "pH" appears again in
• Press repeatedly until "SET" appears in
the display. For a description of the SET mode see
page 30ff.
• Confirm "SET" with
• Now select the measured quantity: Press
the display.
Confirm the measured quantity "pH" with
.
Now set the end point.
Entry of the end point and the control parameters
• Press . The display shows:
Control parameters for EP1
• Set the end point to pH = 7.00.
• Dynamics means the control range in which the
adding of the titrant is controlled in dependence on
the measured value (OFF: largest control range, i.e.
slow titration).
Set the range to 3. I.e. 3 pH units before the set EP
controlled dosing starts.
Maximum possible titration rate inside the control
range.
mode
mode SET
SET pH ********
SET: pH
SET pH ********
parameters
>SET1
>SET1
EP at pH OFF
>SET1
EP at pH 7.00
>SET1
dynamics OFF
>SET1
dynamics 3
>SET1
max.rate 10.0 ml/min