Metrohm 730 Sample Changer - Manuel (Page 177)

5.4 Diagnosis
730 Sample Changer, Appendix
174
Magnet fixture as viewed from underneath
• Pick up the rack and lay it on its side.
• Prepare the instrument for diagnosis (see chapter 5.4.2).
• 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
initialization is important because it is vital for the following diagnosis step “rack code test“
that the rack is in the basic position (beaker 1 at tower 1).
• Prepare instrument for diagnosis (see chapter 5.4.2).
• If necessary press <ê> several times until
diagnosis
>rack code test
• <ENTER>
The test reads the code continuously and displays it immediately. For representation on the
screen a 6-place bit pattern is provided (code ??????). The first position is for magnet no.
1, the second position for magnet no. 2, etc. If a magnet is recognized, a “1” is written into
the corresponding position, otherwise a “0” is assigned.
• Position all racks which are used one after the other and com-
pare the notes made before the test with the information on the
display.
>rack code test
code 000000
Example for:
no rack in position
>rack code test
code 011000
Example for:
Rack with a code as in the example above
• The test can be stopped by pressing the <QUIT> or <STOP>
keys.
diagnosis
>power on reset
The diagnosis can be exited from the main menu with <QUIT> or
<STOP> .
Magnets inserted
In this example the
code is:
000110