Hello Dear Support Team.
We are performing the intensity tests and the result is fail. We initially did this with the lamp installed in the equipment that had 739 hours of use and failed in
the 221-350 nm region with the test cell installed. We proceeded to replace it with a new lamp and obtained the same result. I would like to know what we can
check or what is causing this problem?
I have to attach the results printed by the lab advisor.
Your test is failing because of the very low readings right at 221nm.
As you might have noticed, the test just checks for the lowest single value it can identify within the specified measurement range.
The spectra you'd achieved during the test looks very weak at the lower range from.
A typical spectra would look like this one:
Marked in yellow you can see the difference to your achieved result.
Something seems to block the light in these lower WL-ranges and the lamp just cannot compensate.
You maybe can cross-check by performing the intensity test with a standard flow cell that got thoroughly flushed with water or a different test cell.
In case the achieved spectra looks similar you should expect some optical components having degraded.
Some of the optical components (lense, window) in front of the flow cell can be replaced and there is a very good chance that this providing a huge gain in performance.
But this has to be done by trained service personnel.
