Metrohm 730 Sample Changer - Manuel (Page 99)

4.4 Changer Commands
730 Sample Changer, Detailed Description 96
PUMP
PUMP
4
>sample sequence
4 PUMP 1.1 : 1 s
1.1…2.2 1…999 s,
1. ∗ ,2. ∗ ON,OFF
Pump control
Up to 4 pumps (2 pumps/tower) can be separately controlled with
the PUMP command. The choice of pump is indicated in the first
parameter.
The syntax: T.P (T=Tower number, P=Pump)
Only 2 pumps can be in operation simultaneously. Pump 1 of each
tower does the rinsing of the titration head. Pump 2 (if present)
can be used for removing of the sample solution by aspiration.
Combined rinsing and aspiration is possible with 'PUMP 1.
∗ ' or
'PUMP 2. ∗ ' .
The pumps can be turned off and on as desired or operated for a
specific amount of time. The LEARN function is useful for determi-
ning the interval of time for optimal rinsing or aspiration. See also
page 50.
STIR
5
STIR >sample sequence
5 STIR 1 : 1 s
1…4, ∗ ON,OFF,
1…9999 s
Stirrer control
Up to 4 stirrers can be individually controlled with the STIR com-
mand. The choice of stirrer is indicated in the first parameter. With
'STIR
∗ ' all stirrers can be operated simultaneously.
The stirrers can be specifically switched on or off or operated for a
certain time interval.
In the Parameter Menu under '>stirring rates' the speed of each
individual stirrer can be determined specific to a method. This can
also be modified in a sequence using the corresponding 'DEF'
command.
DOS
DOS
6
>sample sequence
6 DOS 1 : 1 ml
1…12, ∗ fill,
release, prepar.,
empty, eject,
adjust, level
0.001…1…999.999 ml
Dosing Control