2.4 Commands
Metrohm 838 Advanced Sample Processor, Operation 39
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 4 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. T2 not possible.
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.
2.4.3 Dosing drive 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
The DOS command is used for controlling Dosimats and Dosinos. Up
to 3 Dosinos or Dosimats can be addressed individually or simultane-
ously via the MSB bus control.
The 1st parameter selects the dosing device and the corresponding
dosing port, at which the required function is to be carried out. If '*' is
entered then the default port for the corresponding function will be used
(e.g. dosing port = 1, filling port = 2, etc.).
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