Metrohm 711 Liquino - Manual (Page 161)

6. Appendix
711 Liquino, Instructions for use 155
6.5.10 Check external bus
This diagnosis step allows the functioning of those parts of the hardware
for controlling the Dosinos which are contained in the 711 Liquino to be
checked.
•
Prepare instrument for diagnosis (see Sect. 6.5.3).
• If necessary press key <9> several times until

di agnosi s
>ext er nal bus t est
• <ENTER>
 When the <ENTER> key is pressed the Dosino interfaces located on
the internal bus are searched for. During the test the following dis-
play appears:

>ext er nal bus t est
EBUS TESTI NG
 The test proceeds automatically. If no faults are found the display
shows:

>ext er nal bus t est
ADDRESS 0x81 TYPE 3
• <ENTER>

>ext er nal bus t est
ADDRESS 0x82 TYPE 3
• The test is exited by pressing the <STOP> key.

di agnosi s
>beeper t est
6.5.11 Check beeper
This diagnosis step allows the functioning of the internal beeper to be
checked.
•
Prepare instrument for diagnosis (see Sect. 6.5.3).
• If necessary press key <9> several times until

di agnosi s
>beeper t est
• <ENTER>
 When the <ENTER> is pressed the internal beeper is continually
switched on and off. The following display appears during the test:

>beeper t est
• The test is exited by pressing the <STOP> key.

di agnosi s
>memor y car d t est
6.5.12 Check memory card
This diagnosis step allows both the functioning of the memory card inter-
face as well as the memory card itself to be checked. The test duration
depends on the size of the memory card to be tested. The test takes 2
minutes for a 128 Kbyte SRAM card.