Metrohm 838 Advanced Sample Processor Manual - Manual (Page 48)

2.4 Commands
40 Metrohm 838 Advanced Sample Processor, Operation
Please note
After dosing the Sample Processor will not automatically fill the
dosing cylinder. If required, this can be programmed with the com-
mand DOS: 1.* : fill , see below.
It is possible to enter the volume to be added directly as the 2 nd pa-
rameter or to carry out specific functions of a Dosino. Negative volumes
can also be added, i.e. a certain volume can be aspirated and then
ejected again (pipetting). The minus sign is entered with the <*> key.
The functions listed below are used for complex liquid handling tasks
such as pipetting.
Dosing functions:
fill Fills the Dosimat and Dosino cylinder.
release Prepares the Dosimat or Dosino for changing the Ex-
change/Dosing unit. The dosing cylinder is filled via the
rinse port. The stopcock is turned to the exchange posi-
tion (Port 2).
prepar. Preparation cycle (PREP) for Dosinos. All tubing is rinsed
and filled completely.
empty Tubing system and Dosino cylinder are emptied.
eject Complete Dosino cylinder contents are ejected.
endVol Ejects the cylinder content to the max. volume mark.
compen. Cancels the mechanical play between the dosing piston
and spindle.
In the parameter menu under >Dosing unit def. the port assignments
of the Dosinos as well as the dosing and filling rates can be defined for
specific methods.
More details about Dosino commands are given on p. 60ff.
The Sample Processor automatically recognizes whether a Dosimat or
a Dosino is connected.