Changing the Sample Needle
Agilent 7694 Headspace Sampler
Sample probes and union part numbers are:
Nickel needle assembly for G1289 or G1290 301-013-HSP
Silcosteel® needle assembly for G1289 or G1290 301-220-HSP
Nickel needle assembly for G1883 232-2790010-EHS
Silcosteel needle assembly for G1883 232-2790012-EHS
Zero dead volume union for G1290/G1289 325-045-HSP
Union elbow for G1883 998-0000053-EHS
The process of changing the sample needle on the 7694A or 7694E Headspace
Sampler is as follows.
This document is believed to be accurate and up-to-date. However, Agilent Technologies, Inc. cannot assume responsibility for the use of this material.
The information contained herein is intended for use by i nform ed i ndividuals who can and must determine its fitness for thei r purpose.
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Maintaining the Instrument
Changing the Sampling Needle
Changing the Sampling Needle
1. Remove the two screws on the sides of the sampler cover shown below
and lift the cover. Support the cover while working in the sampler area.
Lift front cover
Rear cover
Remove screws
Manifold cover
Figure 16. Removing the sampler cover
2. Loosen the two screws on the manifold cover (it is a stainless steel box)
and insulation from the valve compartment.
2
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