Thermo Scientific 074114, Руководство оператора

Страница: 123 / 148

B • Installation
Doc. 065378-01 1/12
115
10. Connect a backpressure line to the cell outlet. The backpressure line will
provide enough restriction to generate the small amount of backpressure (0.14
to 0.34 MPa; 20 to 50 psi) required to help prevent bubbles from forming in
the cell.
a. Locate the following items in the Dionex PDA Ship Kit (P/N 060977):
0.25-mm (0.010-in) ID tubing (P/N 052306), two split-cone 10-32 ferrule
fittings (P/N 062978), and two 10-32 bolts (P/N 064980).
b. Cut the tubing to the required length: 1 meter for a flow rate of
1.0 mL/min, 2 meters for a flow rate of 0.5 mL/min, and so on.
c. Install a 10-32 ferrule fitting and bolt on each end of the tubing.
d. Using a union fitting (P/N 042627), connect the backpressure line to the
cell waste line installed in Step 9 .
11. Thread the cell outlet tubing through the slot near the bottom of the front
cover. Thread the cell inlet tubing through the slot on the right side.
12. Push the detector front cover into place.
13. Connect the cell inlet tubing to the separator column outlet.
The backpressure on the cell must not exceed 2 MPa (300 psi) for a
PEEK standard or semi-micro cell, 3 MPa (500 psi) for a stainless steel
standard or semi-micro cell, or 10.34 MPa (1500 psi) for a semi-
preparative cell.