AS Autosampler Operator’s Manual
98 Doc. 065051-03 1/08
Example Backpressure Calculations for a Dual ICS-3000 System
The example tubing IDs and lengths for a dual ICS-3000 system shown in
Figure 3-35
will be used to calculate the total backpressure produced for each
system. See the following tables for details.
Prep Syringe Size Prep Syringe Speed Flow Rate (mL/min)
250, 500, and 1,000 μL 1 0.03
20.09
30.24
40.60
51.20
2.5, 5, and 10 mL
a
11.80
22.40
34.80
47.20
5 15.00
Table 3-12. Flow Rates Provided by the Prep Syringe
a. In general, if you are using a 5 or 10 mL syringe, select a syringe speed of 1 or 2.
Figure 3-35. Example Tubing IDs and Lengths for a Dual ICS-3000 System
1
2
PP
P
Needle Seal Line
Diverter Valve
Diverter Line #1
W
L
P
C
L
S
Inject Valve #1
In
ect Valve #2
W
L
P
C
L
S
Diverter Line #2
0.010-in ID, 46 cm
S
0.013-in ID, 38 cm
0.013-in ID, 64 cm
Inject Port
Needle
0.010-in ID
12 cm
25
µ
L Loop
5
µ
oop
0.020-in ID
15 cm
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