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Stir, Stirrer control, 3 dosing drive control – Metrohm 838 Advanced Sample Processor Manual User Manual

Page 47: Dosing device control, Dosing drive control

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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.).