Metrohm 789 Robotic Sample Processor XL - Manual (Page 86)

3.4 Commands
78 Metrohm Sample Processor, Operation
sample solution. Combined rinsing and aspiration is possible by PUMP
1.* or PUMP 2.* .
The pumps can be switched on or off selectively, or operated for a par-
ticular time. The LEARN mode is very useful for determining the optimal
rinsing or aspiration times (see p. 113).
STIR
5
STIR >sample sequence
5 STIR T1 : 1 s
T1, T2,T*,
MSB1…3, MSB*, ∗ ON,OFF
1…999 s
Stirrer control
1 st parameter: stirrer selection
2 nd parameter: status, duration
With the STIR command up to 5 stirrers can be controlled separately.
The first parameter selects the stirrer. With STIR * all the stirrers can be
switched at the same time .
Selecting a stirrer
T1 , T2 , T* Stirrer connections as Tower 1 and 2 respectively (stirrer
models 802 / 722 / 741), * = both connections on the tow-
ers.
MSB1 … 3 Stirrer/Dosing device connectors in the chassis of the Sam-
ple Processor (stirrer models 801 / 803 / 804), MSB* = all
stirrers connected to an MSB socket.
* all stirrers
The stirrers can be switched on or off selectively, or operated for a par-
ticular time.
In the parameter menu under
>stirring rates
the speed of each indi-
vidual stirrer can be defined for a particular method. This can also be al-
tered in a sequence with the appropriate DEF command.
3.4.3 Dosing device control
Connected dosing devices can be controlled separately or all at the
same time . Simultaneous addition of the same volumes or simultane-
ous filling of the connected dosing devices is also possible (Example:
DOS *.2 fill = fill all dosing devices via port 2).
DOS
DOS
6
>sample sequence
6 DOS 1.* : 1 ml
*.*,
1.*…3.4
fill,release, prepar.
empty, eject, endVol,
compen., port,
±0.001…1…±999.999 ml
Dosing device control
1 st parameter: dosing device and port selection
2 nd parameter: selects function/enters volume