Metrohm tiamo 1.1 Manual - Manual (Page 436)

408 Method
Control
(only visible for Titration rate = user )
Dynamics
0.1 ... [ 300.0 (slow) ] ... [ 100.0 (optimal) ] ... [ 30.0 (fast) ] ... 2000.0 mV (Ti-
trando),
1 ... [ 300 (slow) ] ... [ 100 (optimal) ] ... [ 30 (fast) ] ... 2000 mV (Titrino)
Dynamics defines the measured value range before the given endpoint.
This parameter has an important influence on the titration rate and with it on
the accuracy. Within the control range the steps which are added are con-
trolled by the
Min. volume increment . The nearer the endpoint the slower the
dosing takes place until the Min. volume increment has been reached. Out-
side the range the dosing takes place with Max. rate .
Max. rate
0.01 ... [ 1.00 (slow) ] ... [ maximal (optimal) ] ... [ maximal (fast) ] ... 166.00
mL/min
(Titrando)
0.01 ... [ 1.00 (slow) ] ... [ maximal (optimal) ] ... [ maximal (fast) ], 150.00
mL/min
(Titrino)
Speed of addition outside the control range. The maximum dosing speed
depends on the cylinder volume of the exchange unit or dosing unit used.
Min. volume increment
0.1 ... [ minimal (slow)] ... [ minimal (optimal) ] ... [ 5.0 (fast) ] ... 9.9 µL/min
Minimum volume increment which is added at the start and finish of the ti-
tration. The smaller the increment that is selected, the slower the titration
and the higher the accuracy.
Stop criterion
Stop criterion
[ drift ], rel. drift, off (only Titrando 835, 836, 841) , time
The titration stops when the endpoint has been reached and the stop crite-
rion has been fulfilled. The titration can be stopped when a particular
drift
has been achieved or after a preset time . If the criterion off has been se-
lected the titration will not be stopped.
Note
The Stop conditions will always stop the titration even if the stop criterion has not
been fulfilled or has been turned off.
Stop drift
1 ... [ 20 ] ... 999 µL/min
If the EP and the stop drift have been reached the titration will be stopped.
This parameter is only shown for
Stop criterion = drift .
Relative stop drift
1 ... [ 10 ] ... 999 µL/min (only 835, 836, 841)
If the EP and the stop drift have been reached the titration will be stopped.
The stop drift is the sum of the drift at the titration start and the relative stop
drift defined here.
This parameter is only shown for
Stop criterion = rel. drift .
Delay time
0 ... [ 10 ] ... 999 s (835, 836, 841),
0 ... [ 10 ] ... 999 s, inf. (720, 736, 751, 758, 784, 795, 799)
If the EP has been reached, after the last dosing the delay time here de-
fined is awaited and then the titration is stopped. This parameter is only
shown for
Stop criterion = time . inf. stands for infinite.