F-960 Instruction Manual rev. 6/23/2017
1554 NE 3
rd
Ave, Camas, WA 98607, USA
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Phone: (360) 833-8835
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www.felixinstruments.com
Next, verify the set zero calibration by measuring ambient air.
Run the set zero calibration again if the verification is not
successful.
Note about setting zero for the ethylene (C2H4) sensors:
Although there is an internal chamber of KMnO4 that is used to
set zero for the ethylene sensor, it may be advisable to
additionally use an external conditioning chamber full of
KMnO4, creating a closed loop system as described above with
the Soda Lime. This is particularly advised when in an
environment exposed to cross-sensitive gasses, such as
alcohols.
Setup > Calibration
The calibration feature allows the user to set zero and set span
without the use of a computer or G.A.S. (Gas Analysis Software).
Unlike Setup > Set Zero, a zero standard gas is required as well
as standard gases for the set span process.
The F-960 Ripen It! Will prompt the user to set up a zero gas,
which can be achieved by feeding 100% Nitrogen (N2) gas to the
intake. The unit will countdown to set zero. The following
screen will prompt the user to setup a span gas, which is a
known standard gas used for the span calibration process. For
more information on standard gases used for calibrating the
Ripen It! Refer to the calibration sec
tion in the ‘Maintenance of
your F-
960 Ripen It!’ section.
Setup > O2 Calibration in Air
Alternative to setting zero for the oxygen sensor weekly with
100% N2 gas, a user can use the O2 calibration in air menu
option to calibrate the O2 sensor using ambient air.
