User Manual

6.4 Diagnosis
766 IC Sample Processor
123
6.4.9 Beeper
Prepare instrument for diagnosis (see section 6.4.2).
If necessary, press <
ê
> several times until
diagnosis
>beeper test
<ENTER>
The beeper is turned on and off in an endless loop.
>beeper test
The test can be exited by pressing the <QUIT> or <STOP> keys.
diagnosis
>rack code test
6.4.10 Rack code recognition
This diagnosis step checks the functionality of the sensors with regard
to their ability to automatically recognize the attached rack.
Note the code (magnets) on the underside of all the racks being
used. The following diagram shows the magnet fixture on the under-
side of a rack.
Magnets inserted
In this example
The code is:
000110
Magnet fixture as viewed from underneath
Pick up the rack and lay it on its side.
Prepare the instrument for diagnosis (see section 6.4.2).
If necessary press <ê> several times until
diagnosis
>power on reset
<ENTER>
The sample changer runs through its start routine (initializing lift and rack positions). The ini-
tialization is important because it is vital for the following diagnosis step “rack code test“ that
the rack is in the basic position.
Prepare instrument for diagnosis (see section 6.4.2).
If necessary press <
ê
> several times until
diagnosis
>rack code test