36
12.2 Flow Diagram
P
P
S
P
P
P
S
EXP
ANSION
CHA
MBER
FREEZE CHA
MBER
FREEZE CHA
MBER
DISPENSING
DISPENSING
SY
RUP IN
SY
RUP IN
15-20 PSI
30 PSI
SAMPLE
SOLUTION
MODULE
SOLUTION
MODULE
CO
2
BARREL 1
BARREL 2
SHUT
OFF
VAL
VE
VARIABLE RESTRIC
TION
PUMP
CHECK VAL
VE
PRESSURE TR
ANSDUCER
SOLENOID VAL
VE
VAL
VE
PRESSURE REGULA
TOR
H
2
O
L E G E N D
EXP
ANSION
CHA
MBER
SAMPLE
S
P
60 PSI
60 PSI