Dionex As - Page 56

AS Autosampler Operator’s Manual
44 Doc. 065051-03 1/08
Figure 2-24. Fluid Schematic for Sample Syringe with Optional Prep Syringe
The prep syringe valve has two rows of port fittings. Figure 2-25 shows a
detailed view of the front and back port connections.
Figure 2-25. Prep Syringe Valve Port Connections
Prep
Syringe
Reagent B
(Optional)
Reagent C
(Optional)
Reagent D
(
Optional
)
Prep
Syringe
Valve
Sample
Syringe
Valve
R
eagent
H
o
ldi
ng Loop
Sampling Needle Line
Reagent A
Flush Reservoir
Sample
Syringe
Samplin
g
Needle
A
F
B
C
D
S
E
L
N
A
B
C
D
E
F
(Back Fitting)
(Front Fitting)
(Front Fitting)
(To/From Needle)
(Back Fitting)
(Behind
Port S*)
(*Port E not connected)
Front
Fittings
To Prep
S
y
rin
g
e
To Reservoir D
Not
Connected
To Reservoir A
L
F
S
To Port B on
Sample Syringe
To Port A on
Sample Syringe
To Port F on
Sample Syringe
To Reservoir C
T
o
R
eservo
i
r
B
Back
Fittings
B
N
A
E
D
C
Notes on Valve Port
Flow Paths:
• Ports S and F are
always connected.
• Port L connects to
the port selected on
the back fittings.