Removing The Epc Flow Manifold - Agilent Technologies 6890 Series Service Manual

Gas chromatograph

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Figure 340-9

Removing the EPC flow manifold

The ECD detector uses a Type 1 EPC flow manifold that contains one inlet

supply fitting for a purge/makeup gas.

Before proceeding, turn off the oven and any heated zones and let them cool

down. Turn off any detector gases at their supply, then turn off the main

power switch and unplug the power cord.

Remove the top plastic covers from the detector and pneumatics areas.

Also remove the RFI metal shield and the top rear metal cover.

Proper configuration of the column and makeup gas tubing

The end of the column should protrude about 1 mm from the top of

the makeup gas adapter. The total dimension from the back of the

column nut to the end of the column will be about 75 to 76 mm.

Agilent 6890 Gas Chromatograph Service Manual

Electron Capture Detector (ECD)

Replacement procedures

Coil loops around

bottom of detector and

makeup gas adapter

6890a 6890 plus