AVL AVL DiCom 4000, Service Manual

Page: 28 / 182

Error Messages and Troubleshooting AVL 4000
2-6 Service Manual
2.3 Linearity / Opacity Error,
2.3.1 Opacity Measuring Chamber, Type A
If either of these messages occur, proceed as follows.
•
Fold the optical elements of the opacity measuring chamber to the side, out of the
way;
•
Check that both lamps are working - they must both be on.
Replace lamps, if necessary (see section 6.9 Lamp Module).
•
Clean the glass disc in front of the optical elements.(see Operating Manual, Cleaning
the Optical Elements of the Opacity Measuring Chamber).
•
Fold the optical elements back into place and acknowledge the message by pressing
>>
- you will then see the main opacimeter menu.
2.3.2 Opacity Measuring Chamber, Type 4000
Remove the lens protector from the opacity measuring chamber and check the windows –
clean if necessary.
•
Press
<<
to start an automatic calibration.
−
If the instrument calibrates itself successfully, you will find yourself in the main
menu.
−
If the calibration fails, the error message is displayed again. Press
>>
to call up the
diesel service screen for further error diagnosis.