Thermo Scientific Dionex Easion, Operator'S Manual

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Dionex Easion Operator’s Manual
54
Doc. 155028-01 08/20
•
No communication between Dionex Easion and Chromeleon (
Link
LED
on rear panel fails to light)
The USB cable is not connected correctly. For connection instructions, refer
to the Dionex Easion installation instructions.
4.5 No Flow
•
Pump not primed
Prime the pump (see Section 3.6 ).
•
Broken pump piston
Replace the piston (see Section 5.9 ).
4.6 Erratic Flow/Pressure Reading
•
Pump needs priming
Prime the pump (see Section 3.6 ).
•
Damaged piston seal
Replace the piston seal (see Section 5.8 ).
•
Dirty pump check valve
Replace (see Section 5.6 ) or clean (see Section 5.7 ) the check valves.
4.7 Excessive System Backpressure
•
Restriction in system plumbing
Check all liquid lines for crimping or blockage. Make sure the ferrule fittings
are not overtightened onto tubing. For more information, refer to
Installation
of Dionex Liquid Line Fittings (Document No. 031432).
•
Plugged or damaged fitting
Isolate the faulty fitting by loosening fittings, one by one, until the pressure
returns to normal. Repair or replace the fitting (see
Section 5.2 ).