Correcting Leaks - Agilent Technologies 6890 Series Service Manual

Gas chromatograph

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Inlet fitting

Figure 250-19

Correcting leaks

Use the electronic leak detector to check all areas of the interface that

are potential sources of a leak.

Tighten any connections which are leaking and re-test.

Overtightened Vespel ferrules can sometimes get stuck in the interface. If

stuck, try to remove the ferrule carefully to avoid damaging the sealing

surfaces. Otherwise, replace the interface.

If the pressure drop is now 0.03 psi/min or less, you can consider the

interface system leak-free.

If the interface still leaks, continue to check for and correct leaks.

If the interface still leaks and cannot be fixed, depressurize the system.

EPC module serviceable parts

Agilent 6890 Gas Chromatograph Service Manual

Volatiles Interface

Leak testing the EPC module only

6890a 6890 plus