Metrohm 822 Titration Curve Simulator - Manual (Page 17)

3 Description of the titration curves
822 Titration Curve Simulator, Instructions for Use
9
1 st endpoint at (17.50 ± 0.15) % of the cylinder volume
2 nd endpoint at (35.0 ± 0.1) % of the cylinder volume
3 rd endpoint at (52.50 ± 0.02) % of the cylinder volume
parameters: DET pH with standard parameters
5 mL exchange unit
Stop EP: 3
Volume after EP: 0.5 mL
3.3 Conditioning and Karl Fischer titration
Turn the curve selector 2 to position "3" for simulating a Karl Fischer ti-
tration (except with 701, 787 Titrino; see following page).
Program a Karl Fischer method with conditioning and sample data re-
quest. Start the conditioning. Start the titration as soon as "Conditioning
OK" is displayed. The cylinder will be filled again. Now press the key
"Sample Add" 3 and confirm the sample weight. The curve simulator
changes internally automatically to curve "4". The illustration below
shows an example of a simulated curve.
Endpoint at (26.15 ± 0.10) % of the cylinder volume
parameters: KFT Ipol with standard parameters
5 mL exchange unit