Metrohm 766 IC Sample Processor - Manual (Page 128)

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
•
The beeper is turned on and off in an endless loop.
>beeper test
• The test can be exited by pressing the or 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
•
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