Thermo Scientific Dionex ICS-5000 Operator's Manual page 400

Dionex ICS-5000 Operator's Manual
1. Connect enough backpressure tubing to the cell outlet to shrink bubbles
and allow them to pass more easily through the cell. Refer to
the appropriate type and number of backpressure tubing coils required.
Suppressor
Type
Dionex AES
Dionex SRS or
Dionex MMS
*The red coil (P/N 045878) consists of 0.125 mm (0.005 in) ID PEEK tubing
with fittings.
Table 9-10
Suppressor Type
Dionex AES
Dionex SRS or Dionex MMS
2. To verify that the required amount of backpressure is being generated,
follow the instructions in Backpressure Coil Pressure Test for Dionex
Suppressors (Document No. 031759), the flier shipped with the
suppressor. The instructions are also in the suppressor manual on the
Thermo Scientific Reference Library DVD (P/N 053891).
3. If a bubble is still trapped in the cell, try these techniques to remove it:
•
Loosen and then tighten the cell outlet fitting.
•
Temporarily disconnect the backpressure coil from the suppressor
REGEN IN
your fingertip two or three times to create a pressure difference.
384
Column
Format
2 mm
3 mm
4 mm
2 mm or 3 mm
2 mm or 3 mm
Table 9-9. Backpressure Coil Requirements
lists the correct pressure range for each type of suppressor.
Table 9-10. Suppressor Operating Pressure Ranges
port and then plug and unplug the end of the tubing with
Flow Rate Backpressure
(mL/min) Coils
0.25 to 0.50 2 red*
0.50 to 1.00 2 red
1.00 to 2.00 1 red
<0.25 2 red
0.25 to 0.50 1 red
Pressure Range
0.14 to 0.70 MPa (20 to 100 psi)

0.28 MPa (40 psi)
Doc. 065342-06 12/11
Table 9-9 for