Felix Storch F-900, Инструкция по эксплуатации

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F-900 Instruction Manual 8/14/2017
1554 NE 3
rd
Ave, Camas, WA 98607, USA Phone: (360) 833-8835 18
www.felixinstruments.com
following a change in concentration
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. Additionally, a lag is created due to the volume of internal
tubing the instrument contains. Because of the volume of internal tubing, it takes about 120
seconds to see a response by the sensor.
Auto-Escape Feature
An upper limit auto-escape feature acts as a safety feature of the unit. This safety feature is
always on. If the sensor detects over 200 ppm ethylene, the F-900 will auto-escape from
Monitor Mode to prevent poisoning of the electrode. This will stop the measurement. If the
sensor becomes poisoned, it will continually auto-escape with the error message "
sensor out
of bounds ". If this happens, use potassium permanganate ( KMnO
4
) in Chamber Out and set
the instrument to Closed Loop . This will begin to clean the gas inside the instrument. If
possible, the F-900 ethylene analyzer should be removed from the high concentration
environment.
Flow Block Error
The display may show “flow blocked” and a very low flow rate (less than 40 ml/min) for several
reasons. If this message appears on the display of the F-900, ensure that the intake on the front
of the F-900 is free from obstruction and not covered. If connected to tubing or a fruit chamber,
disconnect and reconnect the tubing from the IN port.
If using water in Chamber In, remove the top panel of the F-900 and ensure no water has
entered the F-900. There is a white hydrophobic filter directly down the flow path Chamber In to
be checked for water, as well as a hydrophobic filter near the IN port on the front of the F-900. If
water is found inside the tubing or filters, Stop the measurement and allow the instrument to dry
out. Be careful no further water damage occurs when turning the pump back on.
No SD card Present
If the autosave is enabled and no SD card is present, the user will be notified by seeing
“INSERT SD CARD OR HIT ENTER KEY”. After enter is pressed, “NO SD CARD” is visible on
the Sensor Status display where the FILE and filename usually are. Pressing any other button
besides Enter, will return to the main menu. Each time the F-900 tries to autosave, the unit will
flash “write error” instead of “saved” at the top of the display.
F-900RK: Using the Research Kit Fruit Chamber
To use the F-900 Research Kit in the field or laboratory, attach a hose of the chamber wand to
the IN port on the front panel. Slide the end of the wand into the chamber and tighten the
thumb-screw. Make sure the connection is snug. The fans inside the chamber will begin to spin
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Kontturi et al., “Ionic Transport Processes: In Electrochemistry and Membrane Science.” (Oxford University
Pess) 2008