Metrohm 732 IC Detector - Manual (Page 162)

5.4 Diagnostic tests
732 IC Detector / 733 IC Separation Center
155
5.4.8 Internal hardware test
This diagnostic step can be used to check the hardware for measured
value acquisition in the 732 IC Detector for functionality. The test is di-
vided into separate tests performed in succession. All these tests are
carried out with the possibilities included in the IC Detector and are thus
not dependent on working aids such as test plugs or test adapters.
• The instrument must be in operational readiness for the following
tests (switched on for at least 15 min).
• Prepare instrument for diagnostic tests (see section 5.4.2).
• If need be, press <9> key repeatedly until
diagnosis
>diag/internal test
•
>diag/internal test
>diag/int/U cell
Check Ucell
With this diagnostic step the voltage generator (generation of the cell
voltage) is checked for functionality.
•
The test runs automatically and lasts ca. 3 min. During this time various measurement
results appear in the display, but these should be ignored. If the test discovers results
which lie outside the specified tolerance zones, the number of deviations found ap-
pears following completion of the test. If all results of the test are within the specified
tolerance zones, the following appears:
U cell test ok
•
>diag/internal test
>diag/int/range
Check range
This diagnostic step is used to test the range amplifier for functionality.
•
The test runs automatically and lasts ca. ½ min. During this time various measure-
ment results appear in the display, but these should be ignored. If the test discovers
results which lie outside the specified tolerance zones, the number of deviations
found appears following completion of the test. If all results of the test are within the
specified tolerance zones, the following appears: