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6
Setup
1. Be sure the gas train is clean and dry. Moisture in the train can cause the
flowmeter to float erratically and may affect the accuracy of the Dräger
tube reading.
2. Place the gas train on a level surface. Remove the top.
3. Add 20 mL of deionized water and 5 drops of octyl defoamer to chamber
1.
4. Place the flowmeter tube into the designated hole between chambers 2
and 3. Make sure the word “Top” or “T” on the tube is pointing upward and
that the o-ring seals around the tube.
5. Place the dispersion tube into chamber 1. Place an o-ring into the hole
in the lid above chamber 1. Screw the nylon tube holder into the lid just
enough to hold the o-ring in place. Carefully place the lid onto the body,
making sure the dispersion tube goes into the hole above chamber 1.
When the lid is in place, tighten the nylon tube holder. Leave about ¼"
empty space below the bottom of the dispersion tube. Make sure the o-
ring seals around the tube.
6. Evenly hand-tighten all screws to seal the o-rings.
CO
2
Barrel (143-03)
Sample Entry Point
Rubber Hose (#151-14)
Flowmeter
Dräger Tube Hole
Regulator T-screw
Dispersion Tube
(#151-01)
Chamber 1 Chamber 2 Chamber 3
Nylon Tube Holder
(#151-15)
Thumb Screw
(#151-05)