In my lab, we have Nicolet6700 FTIR.

We replaced a laser on the machine recently, and my FTIR signal is not as strong as before.

I found the error messages (shown below and in the attached picture) while measuring my sample.

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Background Results

The interferogram amplitude (normalized for gain of 1) is below the specified range.

Allowed range: 0.2 - 9.8 Peak value: 0.1

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Does anyone know why this happen and how I can fix it?

Thank you!