Metrohm 896 Professional Detector – Amperometry - Manual (Page 46)

6.9 Systematic error diagnostics
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2.896.0020 896 Professional Detector – Amperometry
6.9 Systematic error diagnostics
If the causes of a malfunction cannot be found among the problem
descriptions in the above chapters, then proceed systematically as follows:
Systematic error diagnostics
1 Restarting the instrument and the software
￭ Switch off the instrument.
￭ Close and restart MagIC Net™.
￭ Switch the instrument back on again.
If the problem has not yet been localized, continue with Step 2.
2 Performing instrument test with dummy cell
(see Chapter 4.1, page 17)
If the problem has not yet been localized, continue with Step 3.
3 Checking software settings
￭ Check the method parameters of the detector and reset them to
values that you know will function.
￭ Check the measuring range and reset it to values that you know
will function or select a larger measuring range.
￭ Check manual changes to the settings and reset them to values
that you know will function.
￭ Check manual settings in the time program and reset them to val-
ues that you know will function.
If the problem has not yet been localized, continue with Step 4.
4 Cleaning the measuring cell
￭ Switch off the measuring cell.
￭ Remove the measuring cell.
￭ Clean the measuring cell (see measuring cell manual).
￭ Polish the working electrode (see the leaflet for the working elec-
trode).
￭ Reinsert the measuring cell.
If the problem has not yet been localized, continue with Step 5.
5 Replacing the reference electrode
If the problem has not yet been localized, continue with Step 6.