Dionex ASE 100, Operator'S Manual

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ASE 100 Operator’s Manual
4-8
Doc. 031842-01 5/02
4.2 Liquid Leaks
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Worn-out seal in extraction cell end cap
Replace the seal (see Section 5.1).
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Missing or worn-out cell O-rings
Check the ends of the cell to verify that the O-rings are in place and in good
condition. Replace any O-ring with a hole size of less than 0.5 mm or a white
Teflon O-ring that is discolored (see Section 5.2).
O-rings should last for approximately 50 extractions. To learn how many
extractions the ASE 100 has performed, go to the
EXTRACTION COUNTERS
screen (see Section C.2.5).
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Leak in solvent flow path
Remove the right side panel of the ASE 100 (see Section 5.3). Inspect the
following fittings for leaks (see Figure 4-1): pump fittings, pump check
valves, pressure transducer fittings, relief valve fittings, static valve fittings,
and solvent line fittings. Tighten or replace any leaking fittings.
If the pump head is leaking, replace the piston seal (see Section 5.5).
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Leaking into waste bottle during static cycle
If liquid drips into the waste bottle when the cell is under pressure and the
static valve is closed, the relief valve is dirty or worn and must be replaced
(see Section 5.6).
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Leaking into collection bottle during static cycle
If solvent leaks into the collection bottle during the static cycle, the static
valve is dirty or worn and must be replaced (see Section 5.7).