Titration sequence for stat – Metrohm 840 PC Control 5.0 / Touch Control User Manual

Page 234

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4.1 Titrations

222

PC Control / Touch Control

The parameters for Control device, Sensor, Dosing device and

Stirrer

are described in the following Section.

Titration sequence for STAT

Start of titration

command

(Switch on stirrer)

The stirrer is switched on after the start.

Measure initial meas-

ured value

The initial measured value is measured.

(Start conditions:

Pause 1

Start volume

Pause 2)

Pause interval 1 is allowed to elapse. The start

volume is added. No measuring points are en-

tered in the list of measuring points. Pause inter-

val 2 is allowed to elapse.

Titration

Titration to the control point is carried out.

During this time controlling is active as well as

monitoring. Measured values are not entered in

the list of measuring points until the titration pa-

rameters (Start time, Start measured value, Start

rate) are fulfilled.

Stop conditions

The first criterion to be fulfilled applies for stop-

ping the titration.

(Switch off stirrer)

The stirrer is switched off.

Fill dosing

cylinder

After the end of the titration the dosing cylinder is

refilled automatically.

Optional steps are shown in brackets.

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