Metrohm 840 PC Control 5.0 / Touch Control - Manual (Page 192)

3.24 Manual control
180
PC Control / Touch Control
For type 8XX dosing devices with an intelligent exchange unit or dosing
unit the data stored on the data chip will be displayed.
For type 6xx or 7xx dosing devices you can select a titrant from the
titrants configured under System/Titrants. Only those titrants which
are suitable for use with the corresponding type of dosing device will be
shown in the selection list, i.e. dosing units for Dosinos and exchange
units for Dosimats. The cylinder volume is checked when dosing is
carried out.
The details of the subdialogs are described on the following pages.
Dosing
Under manual control dosing will be carried out for as long as the
[Dose] button is pressed down.
Press [Dosing] to open the dialog for manual dosing.
Enter the Dosing rate. The rate should be reduced for viscous
liquids. The maximum dosing rate depends on the cylinder volume
of the exchange or dosing unit used (see Section 3.8.6). Dynamic
means that dosing will be carried out quicker and quicker until the
maximum dosing rate has been reached (starting with 1 mL/min
and then doubling the dosing rate every 1.5 s). Dynamic can only be
selected when the dosing cylinder is filled. If dynamic dosing is