Metrohm tiamo 2.2 (ProcessLab) - Manual (Page 1036)

5.6 Commands ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
1020 ￭￭￭￭￭￭￭￭ tiamo 2.2 (ProcessLab)
The request for changing the buffer or standard must be deactivated in
the command CAL LOOP pH or CAL LOOP Conc, respectively. No request
for changing the buffer or standard is then displayed during the run.
For the automatic move to the next calibration solution on the Sample Pro-
cessor, a MOVE command must be inserted between the loop command
CAL LOOP and the measuring command CAL MEAS. The positions of the
calibration solutions on the rack are defined in this command. The following
three possibilities are available to do so:
￭ Defining rack positions for calibration solutions in the method
Starting from a rack position ### defined for the first calibration solution
in the MOVE command, the other calibration solutions will be used in
sequential order at the subsequent positions. The following settings must
be implemented for this purpose in the command MOVE under the
Target parameter:
Move: Rack position
Number: = ### –1 + 'Command name.LCO' (entry with formula edi-
tor, e.g. = 19 + 'Calibration loop pH.LCO' for the above sample
method with the first calibration solution at position 20).
￭ Defining special beakers for calibration solutions in the method
Starting from a first special beaker ### for the first calibration solution
defined in the command MOVE, other calibration solutions will be used
in sequential order at the subsequent special beaker positions. The same
number of special beakers must be defined for the rack that is set up as
the number of calibration buffers used. The following settings must be
implemented in the command MOVE under the parameter Target:
Move: Special beaker
Number: = ### + 'Command name.LCO' (input via formula editor,
e.g = 5 + 'calibration loop pH.LCO' for the sample method above
with the first calibration solution at special beaker position 6).
￭ Defining rack positions for calibration solutions in the sample
data
Starting from the Sample position defined in the sample data (variable
'MV.Sample position') for the first calibration solution, the other cal-
ibration solutions will be used in sequential order at the subsequent rack
positions. The following settings must be implemented for this purpose
in the command MOVE under the Target parameter:
Move: Rack position
Number: = 'MV.Sample position' – 1 + 'Command
name.LCO' (entry with formula editor, e.g. = 'MV.Sample position'–
1 +'Calibration loop pH.LCO' the above sample method).
The variable 'Command name.LCO' (index number of the calibration loop)
is increased by +1 after each pass of the loop.