Malvern MPT-2, User Manual, Page: 36 / 85

Chapter 3 Software and Control
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Control of the accessory via an SOP
An SOP can be configured to control all settings for the accessories automatically.
A titration measurement follows the same SOP format as performed when doing a
normal Size or Zeta measurement, with a few exceptions. When a titration meas-
urement is chosen two extra dialogues -
Titrants and Titration sequence - will
be included in the SOP selections.
The SOP Editor and setup is described in full in the Zetasizer Nano User
Manual . Most of the SOP sections are common to Measurement types, and these
are described in the above manual. The other SOP sections are specific to the
Titrator accessory being used; these are described below. Also note that some of the
other dialogue pages will alter slightly to accommodate extra parameters necessary
to perform the titration measurement.
Creating or editing an SOP - Measurement Type
selection

To create a new SOP, select File-New SOP . This will open up the SOP Edi-
tor. The SOP Editor consists of several dialogues that can be stepped through
by using the
Next arrow button.
(To edit an existing SOP, choose Open-SOP instead.)

Complete the SOP Editor as described in the Zetasizer Nano User Manual.

Once the SOP has been created, press Finish and save the new SOP.
The various SOP dialogues are described below.
Measurement type options
Select an Titration measurement and then choose whether a pH, Dilution or
Additive titration is required. Lastly select the type of measurement that will be
performed (Size, Zeta potential, Intensity or a combination of two measurement
types i.e. Size and Intensity).
MAN0318-4.0 - MPT-2 Autotitrator-Degasser.book Page 2 Tuesday, September 4, 2012 12:15 PM