Metrohm 730 Sample Changer - Manuel (Page 51)

3.4 Manual Operation
730 Sample Changer, Introduction 48
Stirrer
5
STIR The STIR command controls the stirrers. It switches the selected
stirrer on or off, according to the current state. The current state
of the stirrers is shown directly in the display.
Example:
STIR on/off no. ? <3> Display : STIR +---
STIR on/off no. ? <3> Display : STIR ----
Stirrer No. 3 is turned on and off.
Pressing <STOP>, all stirrers (and pumps) are switched off.
Dosing units
DOS
6
The DOS command controls the connected dosing instruments.
Positive and negative volumes can be dosed. Negative volumes
are used to fill the pipetting tube during pipetting and are entered
as <
∗ xx ml>. In addition to entering the volume that is to be ali-
quoted, <SELECT> also accesses additional functions of the cur-
rent dosing instrument:
- filling the burette (fill),
- initializing the change of the dosing unit (release),
- preparing the tubing system (prepar.),
- emptying the tubing system and the burette (empty),
- ejecting the contents of the burette (eject),
- compensating the play between the piston and the spindle
before sucking in and filling the cylinder respectively (adjust),
- compensating the play between the piston and the spindle
before dosing (level).
The first parameter of the DOS command stands for the number
of the dosing instrument (1–12) and the second parameter stands
for the function or the volume to be dosed.
Example:
DOS: 2 <ENTER> 4.51 ml
DOS: 2 <ENTER> <SELECT> ... fill