Error during runs: Needle/Seal move limit exceeded (5.0) - WKB19604

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Article number: 19604

SYMPTOMS

Error message "Needle/Seal move limit exceeded (5.0)" appears during runs or during priming of SM-FTN
"Characterize Needle Seal" diagnostic passes without issue or error

ENVIRONMENT

ACQUITY UPLC H-Class
ACQUITY UPLC I-Class
SM-FTN

CAUSE

The seal constant is too low (3 N/mm) because the load cell cable had not been reset.

Problem will occur also when 30 uL needle is fitted as the characterization of the needle seal (with that needle) will give low value of seal constant. The characterization of the needle seal shall be performed with default (15 uL) needle and then it can be replaced with 30 uL needle without further characterizations.

FIX or WORKAROUND

Power-cycle the SM-FTN. This step is crucial after needle replacement (changing between 15uL and 30uL needles).
Run the "characterize needle seal" diagnostic and ensure the seal constant is closer to 8-11 N/mm.

ADDITIONAL INFORMATION

id19604, A-30SM, UPIBSM, UPIBSM+, UPISMFL, UPISMFL+, UPISMFTIVD, UPISMFTN, UPISMFTN, UPISMFTN+, UPPFTN, UPQSM, UPQSM+, UPQSMBIO, UPQSMBIO+, UPSMFTN, UPSMFTN, UPSMFTN+, UPSMFTN+, UPSMFTNB+, UPSMFTNBIO