PerkinElmer clarus 500 gc, Installation Manual

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Clarus 500 GC Installation Guide
101
Install the NPD Bead Assembly
If you purchased your Clarus 500 GC equipped with a Nitrogen Phosphorus Detector (NPD),
the NPD bead assembly is packaged separately and shipped inside the Clarus 500 GC oven.
To install the NPD bead assembly, use the following procedure and refer to Figure 32.
CAUTION
After installing a NPD bead, you must set up the NPD and condition a
new bead before you can use it. Refer to Setting Up a NPD in Chapter 8
of the Clarus 500 GC User’s Manual (P/N 0993-6073)
.
1. Open the detector cover.
2. Remove the bead assembly package from the Clarus 500 GC oven.
3. Loosen the knurled ring on the NPD collector assembly. Then remove the collector
assembly.
CAUTION
You may find it easier to first remove the coaxial cable from the
collector assembly before you remove the collector assembly.
4. Remove the screw that secures the bead transformer assembly to the top of the Clarus
500 GC oven.
5. Plug the bead assembly (P/N N612-0092) into the connector on the bead transformer.
The connector is keyed so that the bead assembly can only be inserted one way.
6. Carefully insert the bead portion of the bead assembly in the detector body as shown
in Figure 32.
7. Secure the bead transformer to the top of the oven with the screw removed in step 4.
8. Replace the collector assembly on the detector body and secure it by tightening the
knurled ring. If the coaxial cable was removed, connect it to the collector assembly.