Metrohm 730 Sample Changer - Manuel (Page 48)

3.3 Swing Head
730 Sample Changer, Introduction 45
Aligning the titration/transfer head
The swing head executes a shift movement as it approaches the
sample vessels. It can adopt any of four fixed positions, depending
on which row is targeted, or whether the lift is in the shift position.
The titration or transfer head should be aligned in order to guar-
antee that the individual positions are approached with precision.
Place the sample rack that you wish to use on the sample changer
and insert a few sample vessels. Approach one sample position.
Slightly loosen the three screws securing the titration head to the
underside of the swing head and align the titration head so that
electrodes, stirrer, burette tip and tubes are centered in the sam-
ple vessel. Retighten the screws. Proceed in exactly the same way
for the transfer head.