Metrohm 824 Easy Sample Changer - Manual (Page 27)

3.1 The <SELECT> key
824 Easy Sample Changer, Operation
21
3 Operation
This section contains the basic principles for using the 824 Easy Sam-
ple Changer.
As well as processing a series of samples automatically, the 824 Easy
Sample Changer can also be operated manually in order, for example,
to rinse the electrode in a special beaker during the preparation of a se-
ries of samples.
In order to load methods or use functions which are not available in the
normal operating status the <SELECT> key must be activated.
3.1 The <SELECT> key
HOLD
SELECT
PUMP/STIR
Method
Config
SELECT
<SELECT>
PUMP/STIR
Method
Config
SELECT
<SELECT>
PUMP/STIR
Method
Config
SELECT
<SELECT>
PUMP/STIR
Method
Config
SELECT
<SELECT>
PUMP/STIR
Method
Config
SELECT
The <SELECT> key is used to switch between the different operating
levels of the 824 Easy Sample Changer. Each pressure on the key
switches from one mode to the next. The LEDs (see left) indicate the
selected mode.
The individual modes and their functions are as follows:
• Normal operating mode
o
Controls the lift and the sample rack.
o
Starts a method.
• Method selection
o
Selects one of four predefined basic methods or modified meth-
ods
• Pump and stirrer control
o
Switches two external pumps on/off
o
Switches stirrer 1 and 2 on/off
• Sample changer settings
o
Sets the lift working height
o
Sets the rinsing height of the lift
o
Sets the shifting position of the lift
o
Sets the stirring rate
<SELECT> returns to the normal operating mode.