Metrohm 846 Driver Toolbox - Manual (Page 19)

2.2 Functions
Dosing Interface USB Toolbox, DLL Reference 15
2.2.10 DU_ToEnd
DU_ToEnd(long IfNo, long MsbNo, float FwdRate)
Move piston to the mechanical end position. This function can be used to re-
move any air bubbles in the cylinder.
Input parameters
IfNo long Dosing Interface [1… ]
MsbNo long Dosino at MSB[1…4]
FwdRate float Dosing rate [0.01…166 mL/min]
Output parameters
eReturnstate return value
2.2.11 DU_MakeStep
DU_MakeStep(long IfNo, long MsbNo, long FillPort, float Volume,
eDirection Direction, float FwdRate, float RevRate)
Dose a specified volume via the actual port. Dosing rate, filling rate, filling port
and piston direction of the valve disk can be chosen. With reverse piston direc-
tion it is possible to aspirate a desired volume. In this case the filling port is
used as outlet port. The dosing can be hold, continued and stopped.
Input parameters
IfNo long Dosing Interface [1… ]
MsbNo long Dosino at MSB[1…4]
FillPort long Filling port
Volume float Dosing volume [0…99999.99 mL]
Direction eDirection D irection of piston movement
FwdRate float Dosing rate [0.01…166 mL/min]
RevRate float Filling rate [0.01…166 mL/min]
Output parameters
eReturnstate return value
2.2.12 DU_Fill
DU_Fill(long IfNo, long MsbNo, long Port, float RevRate)
Fill the cylinder from a specified port. Filling can be hold and continued, but not
be stopped.
Input parameters
IfNo long Dosing Interface [1… ]
MsbNo long Dosino at MSB[1…4]
Port long Dosino port to fill from [1…4]
RevRate float Filling rate [0.01…166 mL/min]