F-900 Instruction Manual 8/14/2017
1554 NE 3
rd
Ave, Camas, WA 98607, USA Phone: (360) 833-8835
1
www.felixinstruments.com
Introduction
Congratulations on the purchase of your new F-900 Portable Ethylene Gas Analyzer. The F-900
provides accurate real-time measurement of ethylene gas concentrations in a compact
instrument suitable for field and laboratory use. At the core of the instrument is an
electrochemical sensor that offers extraordinary sensitivity to ethylene, at levels as low as 0.025
ppm (25 ppb) in air.
Ethylene production is known to increase in response to plant stress and during fruit ripening
and maturity, and until recently, sensitive ethylene measurements were available only through
elaborate and expensive gas sampling and gas chromatography analysis. The intent of the F-
900
’s portable design is to aid the research community in developing real-world ethylene
management applications for the benefit of growers, processors, and consumers.
The F-900 employs electrochemical sensors as well as several other sensors for temperature,
humidity, GPS location, and optionally carbon dioxide (CO
2
: high and low range) and oxygen
(O
2
). During a sample, the subject gas travels across the surface of the electrode and diffuses
into the electrochemical cell where ethylene is oxidized. The current created by the oxidation is
measured and interpreted as the concentration of ethylene (reported in parts per million or
ppm).
We hope you enjoy using your F-900 Portable Ethylene Gas Analyzer.
Figure 1: The F-900 Portable Ethylene Analyzer front panel and display.
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