Metrohm tiamo 2.1 (ProcessLab) - Manual (Page 882)

5.6 Commands ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
866 ￭￭￭￭￭￭￭￭ tiamo 2.1 (ProcessLab)
Measurement with drift control
The measurement is carried out drift-controlled if this option is enabled.
The measurement is stopped as soon as the Signal drift or the Stop
measured value pH is reached or a defined Waiting time has elapsed.
The corresponding parameters are not visible if this option is disabled.
Measurement without drift control
The measurement is carried out without drift control if this option is ena-
bled. The measurement continues until one of the stop criterions
Measuring time or Stop measured value pH is met. The correspond-
ing parameters are not visible if this option is disabled.
Note
A constant measured value is often only achieved after a certain time, as
mixing and possibly the reaction itself require a certain time. The response
time of an electrode can also increase with time, i.e. reaching a constant
measured value takes longer and longer. Drift-controlled measure-
ment is particularly advisable in such cases, as the measured values are
not applied until equilibrium has almost been achieved.
Measurement with drift control
If the option Measurement with drift control has been selected, then
the following parameters will be displayed:
Signal drift
The measured value is only accepted if the signal drift defined here has been
fallen short of.
Titrando, 855, 867
Range
0.1 ... 999.0 mV/min
Default value 10.0 mV/min
Titrino
Range
0.5 ... 999.0 mV/min
Default value 10.0 mV/min
Min. waiting time
The measured value is not accepted until the minimum waiting time has
elapsed, even if the signal drift has already been reached. The drift continues
to be checked while the waiting time is elapsing.
Titrando, 855, 867
Range
0 ... 999999 s
Default value 0 s