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Installation
1-4 | Model 120HD Hydrogen Analyzer
Mechanical Installation
The analyzer uses Swagelok 5/16" tube fittings for both the sample gas
inlet and outlet. These fittings are located on the right-hand side of the
analyzer and are marked IN and OUT.
Initial Attachment of Swagelok Sample Line Fittings
Attach the Swagelok sample line fittings as follows:
1. Insert tubing into the tube fitting. Make sure that the tubing rests
firmly on the fitting shoulder and that the nut is finger tight.
2. Before tightening the nut, scribe the nut in the 6 o'clock position. This
is done so that you will be able to know exactly how far to turn the
nut as described in Step 3.
3. Hold the fitting body steady with a backup wrench and tighten the
nut 1-1/4 turns. The scribe on the nut should now be in the 9 o'clock
position.
re-Tightening Sample Line Connections
The sample line connections can be disconnected and retightened any
number of times.
1. Insert the pre-swaged ferrule into the fitting until the front ferrule
seats in the fitting.
2. Tighten snug by hand or lightly seat the nut using a wrench. Using a
wrench, tighten an additional 1/4 turn.
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