ABB LWT300 series, Руководство пользователя

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Maintenance and troubleshooting
81
Electronics temperature
To confirm the actual electronics temperature:
1 Select Diagnostics > Device Status > Electronic Temp. > Electronic Temp. .
The electronics temperature is indicated.
2
Press
Back
to return to the
Device Status
menu.
Minimum/maximum electronics temperature recorded
To obtain the minimum and maximum electronics temperature recorded:
1 Select Diagnostics > Device Status > Electronic Temp. > Min Electronic Temp. or Max Electronic
Temp. .
The minimum or maximum electronics temperature recorded is indicated.
2
Press
Back
to return to the
Device Status
menu.
Resetting the minimum/maximum electronics temperature recorded
To reset the minimum and maximum electronics temperature recorded:
1
Select
Diagnostics
>
Device Status
>
Electronic Temp.
>
Reset Min/Max
.
2 Press OK to reset the values.
3 Press Back to return to the Device Status menu.
Total run time
To confirm the total instrument run time:
1
Select
Diagnostics
>
Total Run Time
.
The total run time of the instrument is indicated.
2 Press Back to return to the Device Status menu.
Performing a self-test
Self-tests are used to compare the electrical signature of the instrument's PCBs with a factory
"thumbprint". This test is usually performed every two to three years to confirm SIL compliance)
To perform the self-test:
1 Select Diagnostics > Self Test > Start Self Test > OK .
2
Press
Back
once the test is completed (the progress bar has returned to its "empty" state). You
return to the
Self Test
screen.
3
From that screen, select
Result Seft Test
. The result of the self test appears (
Ok, Not OK
or
Check
Not Done
).
If the result is Not Ok , other errors have most likely happened and you should investigate the
diagnostics history more carefully.
If the result is
Check Not Done , it is likely due to the electrical thumbprint having been erased during
a firmware update. This does not preclude your instrument from working properly.
Setting distance calibration parameters
LWT300 probes are calibrated before leaving the plant. ABB service personnel will inform you if distance
calibration needs to be performed.