Message : "Lamp hours exceeded" on TUV/PDA - WKB9474

SYMPTOMS

• "Lamp hours exceeded" message occurs when running the 2489
• Reboot does not resolve

ENVIRONMENT

• 2489 UV/Vis Detector
• 2998 Photodiode Array Detector
• ACQUITY UPLC PDA eλ Detector
• ACQUITY UPLC PDA Detector
• ACQUITY UPLC Tunable UV Detector

CAUSE

Total lamp hours exceeds 2000.

FIX or WORKAROUND

The warning message is just a reminder that the detector exceeded the 2000 hours of warranty. If the chromatography looks good, you can run samples.

Only replace lamp if defective; if initialization test fail during start up or chromatogram have noisy baseline.

ADDITIONAL INFORMATION

Confirm lamp is switching off after samples are run as described in:
How can I set the 2489 lamp to turn off during my Empower shutdown
method? - WKB109493

What is the part number of a lamp for a 2489, ACQUITY PDA, ACQUITY TUV, or 2998? - WKB1191

You can change the "Lamp threshold" by doing the following:

• On the keypad, press DIAG and select (4) Lamp/Keypad/Display
• Select (3) Lamp threshold.
• Specify a value higher than 2000 to clear the error message. 

To determine if the energy is appropriate to use without replacing lamp see How to read energy on an ACQUITY UPLC PDA detector - WKB68243 or How to read the energy value of a 2489 or 2487 UV/Vis detector - WKB65958