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3 stop conditions, Stop conditions – Metrohm 916 Ti-Touch User Manual

Page 314

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28.2 Monotonic equivalence point titrations (MET)

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298

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916 Ti-Touch

Input range

0 - 999999 s

Default value

0 s

Max. waiting time

If the signal drift has been switched off or has not yet been reached, then
the measured value will be accepted when the maximum waiting time has
elapsed. As default value, a suitable waiting time for the signal drift is
automatically calculated.

Input range

0 - 999999 s

Default value

26 s

Table 7

Default values of the predefined titration rates for MET

Titration rate

slow

optimal

fast

Volume increment

0.05000 mL

0.10000 mL

0.20000 mL

Dosing rate

maximum

maximum

maximum

Signal drift

– pH, U and Ipol

– Upol

20.0 mV/min

20.0 µA/min

50.0 mV/min

50.0 µA/min

80.0 mV/min

80.0 µA/min

Min. waiting time

0 s

0 s

0 s

Max. waiting time

38 s

26 s

21 s

28.2.3

Stop conditions

The conditions for canceling the titration are defined under [Stop condi-
tions]
.

Stop volume

The titration is stopped when the specified volume has been dosed since
the start of the titration. This volume should be adjusted to the size of the
titration vessel in order to prevent the contents from running over.

Input range

0.00000 - 9999.99 mL

Default value

100,000 mL

Selection

off

Stop meas. value

The titration is canceled when the specified measured value has been
reached since the start of the titration.

The values that are actually measurable may vary from the values specified
here, depending on the hardware. The binding measurement value ranges
can be found in the 32 Technical specifications chapter, page 429.