- Peak saturation after repair service
- Peaks off scale
- Flat-top peaks
- 2475 detector
- It is impossible to change the method (reduce injection volume and gain setting, for example)
Sensitivity is recovering with repair service (repair optics).
FIX or WORKAROUND
To reduce PMT sensitivity:
Select Diag > 8 Other diagnostics on 2475.
Press "PMT Sensitivity override" and show the "PMT Sensitivity" view.
Select "Low Sensitivity Mode".
Specify a reduction value of 10 or 100.
2475 Multi-Wavelength Fluorescence Detector Overview and Maintenance Guide
2475, 2475B, A-10FL, photomultplier tube