6 electrode calibration with usb sample processors – Metrohm 900 Touch Control Manual User Manual
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32.6 Electrode calibration with USB Sample Processors
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900 Touch Control
The selection of the result variables is displayed in the number editor.
NOTE
If the method before the command with the result variables applied
contains more than one calculation commands (possibly with result var-
iables bearing the same name), then the result variable of the preceding
calculation command will always be used.
Please note that the result must be within the input range of the para-
meter, as otherwise the determination run will be stopped when the
parameter is accessed.
32.6
Electrode calibration with USB Sample Processors
Basic framework for a method for automatic calibrations
If the calibration of electrodes is carried out with a USB Sample Processor,
then the basic framework of the method will appear as follows:
1.
Subsequence with the commands required for the calibration (com-
mand SUBSEQ)
a. Command for change of buffer/standard (command MOVE)
b. Command for moving the lift (command LIFT)
c. Calibration command (command CAL pH or CAL Conc)
d. …
2.
…
In the interest of general comprehensibility, other commands which are
required are not listed here. A method template is available for an auto-
matic pH calibration with subsequent measurement.