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Metrohm viva 1.0 Manual User Manual

Page 448

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5.5 Method run subwindow

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viva 1.0

NOTE

A constant measured value is often only reached 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
measurement
is particularly advisable in such cases, as the measured
values are not applied until equilibrium has almost been reached.

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.

Input range

0.1 - 999,000 mAU/min

Default value

1.0 mAU/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 contin-
ues to be checked while the waiting time is elapsing.

Input range

0 - 999,999 s

Default value

0 s

Max. waiting time

If the signal drift has not yet been reached, then the measured value will
be accepted when the maximum waiting time has elapsed. If the waiting
time has not been newly entered, then a waiting time that is suitable for
the drift will be calculated automatically according to the following for-
mula:

Input range

0 - 999,999 s

Default value

154 s

Measuring interval

Time interval for entering a measured value in the measuring point list.

Avantes Spectrometer
Input range

0.1 - 999,999.0 s (Increment: 0.1)

Default value

2.0 s