Metrohm 915 KF Ti-Touch - Manual (Page 318)

28.6 Dosing and Liquid Handling
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915 KF Ti-Touch
28.6 Dosing and Liquid Handling
The following dosing commands are available:
Preparing the
exchange unit or
dosing unit (PREP) Rinsing the cylinder and the tubings of the
exchange unit / dosing unit.
Emptying the dos-
ing unit (EMPTY) Emptying the cylinder and the tubings of the
dosing unit.
Dosing a fixed vol-
ume (ADD) Dosing a specified volume.
Liquid Handling
(LQH) Carrying out complex dosing tasks with a Dos-
ino.
28.6.1 Preparing an exchange or dosing unit (PREP)
The PREP command is used to rinse and fill air bubble-free the cylinder
and tubings of the exchange or dosing unit. You should carry out this
function before the first determination or once per day.
Control device
This parameter will only be shown when, in addition to the Ti-Touch, a
Sample Processor has been configured as control device. Control devices
are defined under System
▶ Device manager.
Selection of the control device from the list of devices.
Selection Selection of configured control devices
Dosing device
Selection of the MSB connector the dosing device is connected to. The
selection does not depend on the number of MSB connectors of the con-
trol device.
Selection 1 | 2 | 3 | 4
Default value 1
Titrant
Selection of the titrant from the titrant list. We recommend always select-
ing the titrant. This ensures that the parameters defined for the titrant for
the preparing as well as the tubing parameters (dosing unit only) are used.
Titrants are defined under System
▶ Titrants. You can also enter a name
which is not contained in the titrant list. When a determination is started
there is a check whether the solution is contained in the list.
For buret units with integrated data chip, a check is made in the method
run to verify whether the correct titrant has been attached and whether