Beckman Coulter LH 780 Instructions Manual page 160

TROUBLESHOOTING
FLUSHING LOW VACUUM LINES
5-48
16. Press Alarm Reset on the Analyzer
keypad. The keypad display will change
to a Ready status.
17. Reconnect SEN1 J13.
18. Replace the left-side Diluter cover.
19. Perform Diluter Function F92, and
adjust the low vacuum level, if needed.
The reading should be 6.000 ±0.010.
PN 773023AC