ACQUITY PDA lamp turns off when setting up method or starting sample set in Empower Run Samples or MassLynx Sample List - WKB16490

SYMPTOMS

• Lamp turns off in Empower Run Samples or MassLynx Sample List
• Error message "Inlet method no data was acquired on detector" and the chromatogram is empty
• Issue occurs only the first time an instrument method is set up or the first sample set/list is set up or started
• As the run is started, the console shows the PDA/TUV lamp is off  
• Occurs outside of Empower with Stand Alone Console  
• If leaving and reentering Run Samples is required, the behavior occurs again
   

ENVIRONMENT

• H-Class system
• ACQUITY UPLC PDA
• ACQUITY ePDA
• ACQUITY UPLC Tunable UV (TUV) Detector
• ACQUITY PDA Thermal Enhanced
• Empower 3 FR2 with DP4 SR1
• MassLynx 4.2

CAUSE

Suspect corruption in firmware version 1.70

FIX or WORKAROUND

1. Downgrade the ACQUITY PDA or ACQUITY TUV firmware to version 1.65 (or lower).
2. Note: See the release notes for the current version of instrument control to ensure that the correct firmware version is loaded on instrument device.

Workaround: 

1. Turn the PDA/TUV lamp back ON in the console software.
2. Set up and/or start the sample set in the same Run Samples window. On the second attempt, it will not turn the PDA lamp off. Continue operation and runtime as expected.

ADDITIONAL INFORMATION