F-900 Instruction Manual 8/14/2017
1554 NE 3
rd
Ave, Camas, WA 98607, USA Phone: (360) 833-8835
39
www.felixinstruments.com
Use the up/down arrows to select the sensor to adjust and then the left/right arrow keys
to switch between columns. Once in the column with the On/Off, use the up/down arrow
to turn the sensor On/Off.
Both ethylene sensors should always be turned “On” for measurements. The
firmware will control which ethylene sensor is used to measure the gas sample.
If sensors are not included in your instrument,
please set them to “Off”.
If not actively using the CO
2
PPM
sensor, set it to “Off” to conserve battery life.
Press Save to save any changes.
Press Stop to exit to the Setup Menu.
Setup Calibration
Please see the F-900 main calibration section, starting on page 27, for calibration procedures.
Calibration Parameters and re-calibration steps for C
2
H
4
, CO
2
, and O
2
sensors can be accessed
via the Calibration Menu. Press Enter to confirm and get into the menu. The options at the
Setup>Calibration menu are C
2
H
4
, CO
2
, O
2
, system DAC flow and injection parameters.
C
2
H
4
Calibration
**Re-calibration or changes to any of the Calibration Parameters for C
2
H
4
should be
performed under the supervision of a Felix Instruments technician only.**
The options from the C
2
H
4
Calibration menu are for the C
2
H
4
PPM sensor, C
2
H
4
PPB, offset
autocorrection or sensitivity correction. Calibration Parameters are set by a Felix Instruments
technician during factory calibration and are specific to each instrument. The internal offset is
the ADC voltage output from the sensor when no ethylene is present, and gain describes the
linear increase in the ADC voltage output from the sensor in the presence of ethylene. The RH,
T slope and offset are applied to the ADC voltage to correct for shifts in relative humidity and
temperature that may occur during the sample period. the temperature and RH parameters are
automatically populated during ppb sensor span.
Setup
Sensor
C
2
H
4
PPB
On
C
2
H
4
PPM
On
CO
2
PPM
Off
CO
2
PCT
Off
O
2
Off
Содержание F-900
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