®
000277
Operation
1. Flush the bag at least 3 times with puri
fi
ed air or nitrogen before use.
2. To
fi
ll the bag, connect PTFE tubing from the exhaust port of an air sample
pump to the hose connection on the bag (stem protruding from the top of
the inlet
fi
tt
ing).
3. Ensure that the valve is locked open by tightening the
knurled thumbscrew clockwise until snug. Turn on the
sample pump to
fi
ll the bag (
see Proper Bag In
fl
ation
).
Do not sample compounds that exceed the 225 F (107.2 C)
temperature rating of the
fi
tt
ing O-rings.
When using 237 Series SamplePro FlexFilm bags, do not
sample compounds that exceed 140 F (60 C) temperature.
Do not use sample bags to sample compounds with
boiling points > 249.8 F (121 C).
4. When sampling is complete, turn o
ff
the pump and
loosen the knurled thumbscrew a maximum of
2 revolutions.
5. Close the shut-o
ff
valve by pulling up on the valve stem.
(
Note:
Ensure the PTFE tubing is not pulled o
ff
while
pulling up on the valve stem.) Tighten the knurled screw
until snug to lock the valve closed.
6. To withdraw samples using a needle and syringe,
carefully insert the needle into the port in the septum
fi
tt
ing and pierce the septum.
Do not allow the syringe needle to puncture the bag
material when piercing the septum.
2