Thermo Scientific Dionex AutoTrace 280, Operator'S Manual

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5 • Service
Doc. 065330-05 03/2020
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5. Slide the sleeve down to meet the tubing clamp.
6. Disengage the plunger clamp. Do not leave the plunger clamped; this will
deform the O-ring seal.
Complete the Procedure
Run the Benchmark Test diagnostic method (#30) (see Section 5.17 ) to verify that
the cartridge holder works properly.
5.8 Converting a Cartridge Holder (Dionex AutoTrace 280
PFAS)
Follow the procedure below to convert a cartridge holder on a Dionex AutoTrace
280 PFAS to accommodate a cartridge of a different size.
For instructions on how to perform this procedure on a standard Dionex
AutoTrace 280, see
Section 5.7 .
Parts and Tools Needed
•
3/8-in open-end wrench
•
1/4-in open-end wrench
•
Obtain the appropriate plunger assembly for the new cartridge size. For
descriptions and part numbers, see
Appendix C .
Remove the Old Plunger Assembly
Follow these steps to remove the existing plunger assembly for each cartridge
holder to be converted.
1. Use a 3/8-in open-end wrench to secure the coupler (see Figure 5-11 ).
Remove the PEEK nut on the tubing assembly by turning the nut
counterclockwise.
2. Use a 1/4-in open-end wrench to secure the split-cone fitting. Remove the
coupler with a 3/8-in open-end wrench.
3. Remove the double-cone ferrule and split-cone fitting from the stainless steel
tubing on the plunger lever.
4. Disengage the plunger clamp, and then move the plunger up and out of the
cartridge.