Metrohm 730 Sample Changer - Manuel (Page 116)

4.6 Dosimats and Dosinos
730 Sample Changer, Detailed Description 113
Release exchange unit Release exchange unit
DOS: XX : release ml Prepare Dosino for removing the ex-
change unit.
Before removing the exchange unit the burette must be filled and
the Dosino stop-cock run to the exchange position. Under stan-
dard conditions the volume required for filling the burette is aspi-
rated from the filling port. To fill the burette for example, with dis-
tilled water for storage, this can be changed with the following
commands.
>dosing unit def. XX
rinsing Port Y
or
<DEF> DRIVE.PORT XX.Y : rinse
Ejecting Ejecting
DOS: XX : eject ml Empty the Dosino burette.
The contents of the burette is ejected completely via the dosing
port. This can be redefined as desired (see Dosing).
Adjust Adjust
DOS: XX : adjust ml Conmpensate the play
The mechanical play between the dosing piston and the spindle is
compensated. This command is important for exact pipetting when
small volumes are aspired into the pipetting tube and ejected
again. First, the content of the cylinder is ejected completely
(eject), then before the solution is aspired, the piston is adjusted
(adjust).
Level Level
DOS: XX : level ml Compensate the play
The mechanical play between the dosing piston and the spindle is
compensated after the cock has been turned into the dosing posi-
tion. The dosing port can be redefined as desired (see Dosing).
This command is executed to increase the precision.