F-900 Instruction Manual 8/14/2017
1554 NE 3
rd
Ave, Camas, WA 98607, USA Phone: (360) 833-8835
30
www.felixinstruments.com
will help stabilize fluctuations in CO
2
levels, providing an ambient air with approximately 400
ppm CO
2
(depending on proximity to urbanized areas).
Tips for Calibrating the F-900 CO
2
Sensor with a buffer system:
The operator should stand away from the F-900.
Use extra tubing to get the intake source away from human breath.
Use a buffer tank system to stabilize the intake source.
1. Find and clean an empty bottle with cap,
which is at least 3L in volume.
2. Drill two small holes in the cap of the
buffer bottle: 1 hole is for the intake tube
and 1 hole is for the out tubing.
3. Insert a short plastic tube into the cap of
the buffer bottle for the “out”.
4. Insert a longer plastic tube into the cap of
the buffer bottle that will connect to the
“IN” of the instrument. Use hot glue or
otherwise seal the tubing to the cap, with
no leaks.
Summary of Contents for F-900
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