15 of 24
Jun 2001
Detectors
Agilent 6890 Gas Chromatograph Service Manual
Thermal Conductivity Detector (TCD) 330
Replacement procedures
7. Unclip the switching valve connector from the detector interface board
(Type 1 manifold) or the in-line connector (Type 2 manifold), and thread
it back up through the mainframe to the pneumatics carrier.
Figure 330-12 Removing the detector interface card
Caution Always hold the Type 2 manifold by its support bracket to avoid damaging
board components.
8. Slide the manifold from its slot.
Installing a Type 2 manifold
WARNING Hydrogen gas is flammable and potentially explosive. Before replacing the
manifold, turn off the hydrogen gas at the source.
Switching valve connector
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