Metrohm 900 Touch Control Manual - Manual (Page 509)

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32 Appendix
900 Touch Control
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Command parameterization
The following special settings are required with the individual commands:
￭ Command SUBSEQ:
The setting Cycles = Calibration must be adjusted in the Subse-
quence options dialog.
￭ Command MOVE for changing the buffer/standard:
The only definition made in this command is that a calibration position
is to be moved to. The setting Destination = Calibration pos. must
be adjusted for this purpose. The question of which rack positions are
used as calibration positions must be defined in the rack table (see
below).
￭ Command CAL pH or CAL Conc:
The setting Sample Processor = USB must be adjusted in the Cali-
bration parameters dialog.
Definition of the calibration positions
The positions of the individual buffers/standards on the rack are defined in
the rack table of the rack used. The following options are available:
￭ Utilization of sample positions
The desired rack position for the first buffer/standard must be entered
in the dialog Sample rack / Edit rack data for the parameter 1. Cal-
ibration pos.. In this case, it is imperative that the remaining buffers/
standards be placed on the rack positions directly following.
￭ Utilization of special beakers
Any rack position can be defined as a special beaker. It is, however,
preferable to set them at high rack positions in order to be able to
begin sample series at rack position 1. The special beakers are moved
to in ascending order.
The list of special beakers is displayed in the dialog Sample rack /
Edit rack data by pressing [Special beakers]. The number of buf-
fers/standards used for calibration will determine the number of special
beakers to be defined. We recommend defining special beakers 1…n.
Afterwards, in the dialog Sample rack / Edit rack data, for the para-
meter 1. Calibration pos., the option Special beaker 1 must be
selected for the first buffer/standard.