Apparatus and method for air-in-line detection

I OWINDOW PRIMARY FIG‘. 5/4 I WEIOHHNG I VALUE : 660 { I I I I 0 I _ 0 (MORE RECENT) -.__K (OLDER) I QWINDOW SECONDARY WEIGHTING VALUE 561) 0 > 0 (MORE RECENT) -_—K-——> (OLDER) Lfl : OWINDOW . I I WEISFJING Q-/5 g F/G. 50 I I 0 I I > 0 (MORE RECENT) /( (OLDE/9)

52 RECEIVE NEW AIR BIBNAL /' 54 VALUE (AIR SIGAML (0)) , A00 NEW AIR SIGAML VALUE 55 T0 rop MEMORY REGISTER, / SH./Ff EXISTING VALUES DOWN, DISCARD BLBEBI A00 SELECT SET OF MOST RECENT AIR SIGM4./. VALUES /58 I0 BEIERUINE SINGLE BUBBLE VALUE 64 ACUVA IE BINBLE BUBBLE ALARM