Metrohm 730 Sample Changer User Manual Page 173

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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
55.4.4.5 .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
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