Noise does not meet specified value during Noise and Drift test on TUV; drift does meet the value; a dark current error occurs upon power cycle - WKB245679

SYMPTOMS

• Noise does not meet the specified value during the Noise and Drift test on TUV; drift does meet the value; a dark current error occurs when power is cycled
• Resetting the dark current error brings successful initialization, and analysis can be done, but the noise is still too high and the Noise and Drift test fails
• All other OQ tests pass
• Replacing the lamp or the cell does not change the situation

ENVIRONMENT

• Acquity TUV
• 2489

CAUSE

Defective part (700009350 - ASSY, PRE-AMP WITH CABLE 2489)

FIX or WORKAROUND

Replace part 700009350 (ASSY, PRE-AMP WITH CABLE 2489).

ADDITIONAL INFORMATION