Metrohm 824 Easy Sample Changer - Manual (Page 28)

3.2 Settings
22
824 Easy Sample Changer, Operation
3.2 Settings
In order to be able to work comfortably with the 824 Easy Sample
Changer a few settings must first be made.
• The various lift settings depend on the rack used; this means that
they must be made for each sample rack according to the size of the
sample vessels used.
• The stirrer rate is method-specific and is stored in the active method.
If you use different methods then the stirrer speed must be optimized
separately for each method.
3x
HOLD
SELECT
PUMP/STIR
Method
Config
SELECT
Place a sample rack on the turntable and press <STOP/RESET>.
Place a filled sample beaker at the rack position in front of the lift in
order to make the following settings.
Press the <SELECT> key three times.
The SELECT LEDs show that the 824 Easy Sample Changer is now in
the configuration mode.
You can now use the <Í> and <Î> keys to switch between the four
possible settings in this mode.
3.2.1 Setting the working position of the lift
STIR 1
STIR 2
The lift with the titration head can be easily moved up and down with
the <Ï> and <Ð> keys respectively.
Set the working height of the lift so that the electrode is immersed and
the stirrer can work efficiently.
Accept/ continue with <Î>.
3.2.2 Setting the rinsing position of the lift
STIR 1
STIR 2
The lift with the titration head can be easily moved up and down with the
<Ï> and <Ð> keys respectively.
If standard method 4 is used then the rinsing position of the lift is
required for aspirating the used sample. Set the rinsing position of the
lift so that the sample vessel can be emptied completely. A rinsing
position which is lower than the working height can be selected. The
mounting position of the aspiration tubing can be selected as required.
Accept/ continue with <Î>.
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