66. . Configuration
Configuration
726 Titroprocessor, Short Introduction
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6.2 Sample Changer Configuration
The sample changer configuration is accessible from the main page by
pressing the [Config.] and then the [Sample changer] softkey.
For safe operation of the 717 Sample changer it is important to accurately
configure the racks used. Use only Metrohm standard racks with the 717
Sample changer and the 726 Titroprocessor. The preset magnetic rack
code with which every Metrohm standard rack is equipped, will ensure the
correct identification of the rack type. Do not change the magnetic rack
code unless you want to use several racks of the same type, but with differ-
ent special positions or special beaker settings.
Rack definitions
Name
optional rack name
Beakers
number of beakers; given with the rack type
Special lift positions; must be set to correspond with the beaker size and the
titration head equipment. Lift positions are to be defined in mm, measured
from the top of the changer’s tower (rest position).
Work position
lift position for the sample treatment
Shift position
lift position for rack shifting
Rinse position
lift position for rinsing of the titration head equipment
Spec. Position
special lift position for any purpose
Type
rack type (e.g. M12-0 = Metrohm standard rack,
12 beakers)
Code
rack code for automatic rack identification correspond-
ing to the physical arrangement of the rod magnets of
each rack. The code has to be unique. The softkey
[Check code] will check multiple use of the same code.
For every rack you may define up to eight special beaker positions that can
be separately accessed during the execution of a sample series.
The softkey [Special beakers] opens a dialog window that enables the edit-
ing of the special beaker positions of a previously selected rack.
Spec.beaker
name of special beaker
Position
rack position of special beaker (0=not defined)
It is recommended not to define special beakers at the
first rack positions, but at higher positions.
General sample changer configuration
The dialog page ‘
Configuration: Sample Changer
’ shows the softkeys
[Changer 1] and [Changer 2], which enable to access the general sample
changer configurations, namely:
Tower max. height
maximum height, defines the lowest possible lift posi-
tion
Tower 1 X pumps
number of pumps on tower 1
Tower 2 X pumps
number of pumps on tower 2
