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- Posts: 14
- Joined: Thu Sep 29, 2011 7:20 am
I am facing an issue with a Waters Acquity PDA detector.
This problem makes me completely crazy, and i would like to have some help or an explanation. That is why i post on this forum.
We are unable to calibrate the PDA. The error message is wavelength verification failure at startup and λ1 is out of range during Erbium calibration (199.350). λ512 is ok at 801.629. I am in service mode
I tried many differents things :
- flush the flow cell, clean it with appropriate solvent, clean it again with dilute formic acid, clean it again with dilute nitric acid. same issue
- Then i replaced the cell : same issue
- I replaced the D2 lamp with a new one : same issue
My feeling is that the issue could be solved in the mercury calibration panel, but i don't know the process for repair.
If anyone are facing the same issue and know how to resolve it, i highly appreciate your help.
thank you a lot,
Pierre