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3 titration parameters, Titration parameters – Metrohm 916 Ti-Touch User Manual

Page 329

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28 Parameters

916 Ti-Touch

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313

time
The titration is stopped when the endpoint has been exceeded during
a certain period of time (Delay time).
off
The titration will not be stopped until the stop conditions have been
fulfilled.

Stop drift

This parameter can only be edited with Stop criterion = drift.

The titration is stopped when the endpoint and the stop drift have been
reached.

Input range

1 - 999 µL/min

Default value

20 µL/min

Delay time

This parameter can only be edited with Stop criterion = time.

When the endpoint has been reached, the specified time is allowed to
elapse after the last dosing and the titration is then stopped.

Input range

0 - 999 s

Default value

10 s

Endpoint 2
The control parameters for the second endpoint are defined under [End-
point 2]
. The parameters and input ranges are identical with those for
the first endpoint.

28.3.3

Titration parameters

Under [Titration parameters], the parameters influencing the sequence
of the entire titration are defined.

Titration direction

The titration direction is normally determined automatically from the start
measured value and the set endpoint. It is recommended that, whenever
possible, a positive or negative modification of the measured value is
entered. If two endpoints have been set then the titration direction will be
defined automatically. In this case the setting will be ignored.

Selection

+ | - | auto

Default value

auto

+
Positive measured value modification, i.e. in the direction of a higher
pH value, greater voltage or greater current.