Metrohm 799 GPT Titrino User Manual
Page 44
2.6 Parameters, key <PARAM>
799 GPT Titrino
40
Control parameters for KFT
The control parameters can be set according to your samples. The default parameters
are already set to get satisfactory results. Optimize the control parameters for specific
samples only.
During the titration, reagent dosing is carried out in 3 phases:
1. Initial dosing:
Here the dosing rate
increases constantly up to
"max.rate".
2. Continuous dosing:
Dosing is performed at the
maximum rate "max.rate"
until the control range
(dynamics) is reached.
3. Control range (dynamics):
In this range, dosing is
performed in single steps.
The last dosing steps are
controlled by the
parameter "min.volume
incr.".
Remarks
:
• Titer determination should have the same modes and the same parameters as the
sample titrations.
• In most cases the preset default parameters provide precise and reproducible results.
• Ipol gives relatively steep curves. They are flatter with Upol.
U/mV
V/mL
t/s
EP
V/mL
Initial
dosing
Continuous
dosing
Control
range
I/uA
V/mL
EP
KFT Ipol
KFT Upol