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Jun 2001
Detectors
Agilent 6890 Gas Chromatograph Service Manual
Nitrogen Phosphorus Detector (NPD) 320
Replacement procedures
.
Figure 320-4 Disconnecting the detector flow lines
4. Type 1 manifold
Remove the Torx T-20 screw from the front of the manifold as shown. If
you do not intend to remove the manifold, slide it to the rear enough to
remove the screw holding the pneumatics block, then return it to position
and insert the screw in the front to secure it.
5. Type 2 manifold
The pneumatics block is on the rear (rather than the side) of the manifold.
If you do not intend to remove the manifold, remove the screw holding
the pneumatics block. Remove the T-20 screw on the front only if you
intend to remove the manifold.
Pneumatics
block
T-20 Torx screw
Typ e 1 manifol d
Typ e 2 manifold
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