Metrohm tiamo 2.1 (ProcessLab) - Manual (Page 1097)

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tiamo 2.1 (ProcessLab) ￭￭￭￭￭￭￭￭ 1081
Exchange position
With this function the cylinder is filled via the given port first. The valve
disc is then turned to Port 2 and the dosing unit can be removed from
the dosing drive.
Change port
With Change port the valve disc is only moved to the given port; no
piston movement takes place.
Compensate
As the dosing units are exchangeable, the coupling of the Dosino piston
rod (spindle) has a low mechanical tolerance that can be noticed when
the piston changes its direction of movement. This tolerance can be
compensated for with the Compensate function. A short piston move-
ment is first made in the same direction as the previous movement, which
is then followed by a piston movement in the reverse direction.
Port
The port where each function is to be carried out needs to be defined for
each liquid handling command.
Selection 1 | 2 | 3 | 4
1
Default setting for Dosing and Aspirate
2
Default setting for Fill, Exchange position and Change port
4
Default setting for Eject to stop, Eject to end volume and Compensate
Volume
Enter the volume to be moved. This parameter is available only for the
Functions Dosing or Aspirate.