Metrohm 730 Sample Changer - Manuel (Page 173)

5.4 Diagnosis
730 Sample Changer, Appendix
170
diagnosis
>display contrast test
• <ENTER>
After pressing the <ENTER> key the following display appears whereby the contrast of the
display continuously varies between bright and dark.
>display contrast test
** 730 Sample Changer **
• The test can be exited with the <QUIT> or <STOP> key.
diagnosis
>key test
5 5.4 .4.5 .5 Keyboard
This diagnosis step allows all the keys on the keyboard to be
tested for their functionality.
• Prepare instrument for diagnosis (see chapter 5.4.2).
• If necessary, press <ê> several times until
diagnosis
>key test
• <ENTER>
>key test
• Activate all the keys one after the other and check their reaction
on the display.
The corresponding matrix code appears in the display and a description of the main func-
tion of the key pressed (for example, the following display should appear when the
<CONFIG> key is pressed).
>key test
code 4 CONFIG
• The test is exited by pressing the <STOP> key twice.
diagnosis
>remote test