Metrohm 840 PC Control 5.0 / Touch Control - Manual (Page 57)

3 Operation
PC Control / Touch Control
45
3.8.6 Tubing parameters and parameters for the preparation
procedure
Under Exchange unit/Tubing parameters or Dosing unit/Tubing
parameters you can enter the lengths and diameters of the connected
tubing. With the dosing unit you can also alter the port occupancy.
These parameters are important for correctly carrying out the
preparation (PREP command) and emptying (EMPTY command)
functions for the dosing unit, as the volumes of the tubing connections
must be taken into consideration (see Section 3.24.2).
VENT
Port 1
Port 2
Port 4
Port 3
Fig. 3.7: Dosing unit port occupancy and tubing connections
The default values for the tubing parameters of the exchange unit and
dosing unit have already been entered; these represent the dimensions
of the standard tubing supplied. If you do not make any changes to the
tubing then you do not need to alter the tubing parameters.