Metrohm 746 VA Trace Analyzer - Manual (Page 530)

7.3 Error messages
746 VA Trace Analyzer / 747 VA Stand
7-31
-> test beep: y/n ? n
The instrument is now powered up and the ”MONITORING” page appears.
6 Load method or determination
Select the "METHODS", "DETERMINATIONS" or "DATA CARD" page and
copy desired method or determination to the working storage.
Overall initialization
Reinitialization of the entire hardware and software.
The instrument is reinitialized completely, the data loaded in the method and de-
termination storage as well as the method and determination loaded in the working
storage are cleared and all instrument parameters are reset to their default values.
The overall initialization is performed as follows:
1 Start reset
Initiate a reset using one of the 3 methods listed under Normal Reset, then
press the space key several times when the instrument is powering up until
the following screen display appears:
RAM initialization 746
ДДДДДДДДДДДДДДДДДДДДДД ДДДДДДДДДДДДДДДДДДДДДД
-> contrast = ###
hit any key to confirm contrast
2 Adjust screen contrast
The screen contrast is now continuously varied from completely dark to
extremely light. Press any key as soon as the contrast has reached the
desired value. (If you are not satisfied with the result, you can improve the
contrast setting later on the ”VA TRACE ANALYZER” page.)
3 Run RAM test
Next you are asked whether or not you wish to perform a RAM test. If an
error has been found, it is advisable to press here. If the RAM test is
successful, the following screen display appears:
-> contrast = 108
-> non destructive RAM test: y/n ? y
- running non destructive RAM test
RAM test passed ok