Electronics Temperature; Total Run Time; Performing A Self-Test; Setting Distance Calibration Parameters - ABB LWT300 Series User Manual

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.
Maintenance and troubleshooting
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