ACQUITY PDA/TUV drift test failing - WKB82931
Article number: 82931
SYMPTOMS
- Excessive drift (>10 mAU/Hr)
- Lamp energy good
- Noise good (<80uAU)
- High-quality solvent used
ENVIRONMENT
- ACQUITY UPLC Tunable UV Detector
- ACQUITY UPLC PDA Detector
- ACQUITY UPLC PDA eλ Detector
- ACQUITY UPLC H-Class
- ACQUITY UPLC I-Class
- ACQUITY UPLC
CAUSE
Thermally managed optics not optimized for laboratory environment.
FIX or WORKAROUND
- Open the detector on the ACQUITY console.
- Set plot to 1 minute/monitor baseline.
- Select Configure > Preferences.
- Adjust temperature setting until AU is <0.0002.
- Run Noise and Drift test.
ADDITIONAL INFORMATION
- PDA/TUV Performance Maintenance Kit (201000273)
- PDA Thermally managed detectors have the following Part Numbers: 186015032/033
- TUV Thermally managed detectors have serial no. above A10TUV001N