Wavelength accuracy test fails - WKB46657
Article number: 46657
SYMPTOMS
- Wavelength accuracy fails with a caffeine max of 208 nm
- Fails after replacing the lamp
- Flow cell was flushed with acetonitrile and then water with 1% formic acid but continued to fail
ENVIRONMENT
- ACQUITY UPLC Tunable UV Detector (TUV)
- ACQUITY UPLC PDA Detector
CAUSE
Dirty flow cell
FIX or WORKAROUND
Repeat the wash for a longer period.
If repeat wash does not work. Replace flow cell.
ADDITIONAL INFORMATION
If the unit continues to fail, perform a 30% phosphoric acid wash.
id46657, UPBINARY