Malvern MPT-2, User Manual, Page: 27 / 85

Connection and accessory preparation Chapter 2
MPT-2 & Degasser Page 2-5
The following illustration shows how the finished titrant connections should look.
Note that the direction of flow through the degasser is not critical.
ill 8747
Once all required titrant lines have been connected to the degasser, plug all unused
ports with the spare plugs supplied. Press these in by hand.
Connecting the Titrator to the Zetasizer Nano
Follow the guidelines on inserting the cell in the Zetasizer Nano manual.
The tubing has to be attached correctly between the cell used and the titrator unit
itself. How the tubing is connected to the cell is dependent upon the cell and the
measurement being performed.
Connecting from the Titrator to the Nano
Follow the instructions below for connecting the cell. For each cell, minimise the
tubing within the cell area before inserting into the pinch valve channel.
Zeta potential measurements
The tubing is attached to the folded capillary cell (DTS1070/DTS1061) using 'Luer
lock' connectors.
With a half-turn these secure to the Luer fittings on the top of the cell (do not over-
tighten). The tubing is then inserted into the pinch valve channel; push
both tubes
down into the pinch valve on the side of the cell area.
If a flowcell is used, insert the sample tubes into the threaded inserts and screw
into the top of the flowcell, and then push both tubes down into the pinch valve on
the side of the cell area.
POWER
STATUS
VACUUM
A
B
C
Vacuum Degasser
Connection in a
typical system
MPT-2 Autotitrator
A B C A
Titrants
MAN0318-4.0 - MPT-2 Autotitrator-Degasser.book Page 5 Tuesday, September 4, 2012 12:15 PM