Metrohm 838 Advanced Sample Processor Manual - Manual (Page 65)

2.8 Dosing and liquid handling
Metrohm 838 Advanced Sample Processor, Operation 57
The contents of the dosing cylinder is ejected via the selected port. The
standard PREP port (Port *) is that defined under
>dosing drive X
preparation port Y
(default: Port 1).
Empty
DOS: X.Y : empty mL Completely empties the dosing cylinder
and tubing
The tubing system and Dosing unit cylinder can be completely emptied.
The liquid in the dosing cylinder is ejected via the dosing port. The air
required to displace the liquid from the tubing is aspirated via the given
port. The standard port (Port *) for aspirating the air is that defined un-
der
>dosing drive
X
drain port Y
(default: Port 4).
The standard dosing port can be altered under
>dosing drive X
dosing port Y
(default: Port 1).
Exchange Dosing unit
DOS: X.Y : release mL Prepares Dosino for exchanging the Dosing
unit.
Before changing the Dosing unit the release command must be used
to fill the dosing cylinder and move the stopcock to the exchange posi-
tion. The cylinder is filled by aspirating the necessary volume via the
given port. If * is entered as a wild card then the port given under
>dosing drive X
rinsing port Y
will be used (default: Port 2).