The method – Metrohm 730 Sample Changer Manuel d'utilisation

Page 34

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3.1 Tutorial

730 Sample Changer, Introduction

31

<ENTER>

Display:

>rack definitions 1

shift position 0 mm

The menu item 'shift position' defines the height of the lift when
the sample rack is rotated. For the entry proceed as for the work
position. Make sure that the electrode, the titrating tip and the
rod stirrer do not bump against the vessels when the rack ro-
tates.

Display:

>rack definitions 1

shift position 20 mm

<ENTER>

Display:

>rack definitions 1

special position 0 mm

The 'special position' defines a further height of the lift. It can be
used for pipetting with the swing head. For the entry proceed as
for the work position.

Display:

>rack definitions 1

special position 140 mm

<ENTER>

<ENTER>

The final entry in the rack configuration is the definition of the
position of the special beakers.

Display:

>rack definitions 1

>>special positions

In the submenu '>>special positions' under 'special beaker 1'
enter the position at which you have placed the conditioning or
rinsing beaker (see rack overview on page 104).

STOP

The configuration can now be exited with <STOP> or by press-
ing <QUIT> three times. The rack data entered are now avail-
able at all times and must not be re-defined every time.

The Method

USER

METHOD

<ENTER>

TOWER

SEL ECT

<ENTER>

Now open the user method menu.

Display:

methods

>recall method

Press <ENTER> to load a predefined method.

Display:

method:

∗∗∗∗∗∗∗∗

∗∗∗∗∗∗∗∗

Choose "Titrino" with the <SELECT> key. This is the most uni-
versal of the predefined methods from which you can learn the
basic sample changer commands.

After you have confirmed loading the method with <ENTER>,
the name of the method appears in the upper left corner of the
display. You can now use the TRACE function to run the
method in steps to understand how it works. See below.

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