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Operating Manual
Agilent 7694 Headspace Sampler
Sample probes and union part numbers are:
Nickel needle assembly for G1289 or G1290
Silcosteel® needle assembly for G1289 or G1290
Nickel needle assembly for G1883
Silcosteel needle assembly for G1883
Zero dead volume union for G1290/G1289
Union elbow for G1883
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 informed individuals who can and must determine its fitness for their purpose.
A16176.doc
Changing the Sample Needle
http:// www.chem.agilent.com
http:// www.chem.agilent.com
http:// www.chem.agilent.com
http:// www.chem.agilent.com
301-013-HSP
301-220-HSP
232-2790010-EHS
232-2790012-EHS
325-045-HSP
998-0000053-EHS
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Summary of Contents for Agilent Technologies 7694
- Page 1 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 informed individuals who can and must determine its fitness for their purpose.
- Page 2 Maintaining the Instrument Changing the Sampling Needle Changing the Sampling Needle 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...
- Page 3 Maintaining the Instrument Changing the Sampling Needle Manifold cover Loosen and insulation (Sampler cover removed for clarity) Figure 17. Removing the manifold cover and insulation The sampling needle is located inside the square aluminum block. It is connected to the sampling valve through a 1/16–inch nickel tube and hexagonal union.
- Page 4 Maintaining the Instrument Changing the Sampling Needle Hexagonal union Union Sampling needle Sampling needle G1289/G1290 G1883 Figure 18. Position of vial sampling needle Replace the sampling needle, tighten the fittings, and perform a leak test before replacing the insulation and cover.