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Flame Ionization Detectors (FIDs) Description
When renting an FID consider if you would like a handheld, portable device or if you need a larger structured FID, this will depend on the source of the gas under test. The data display varies between models so make sure you are clear about what you need to do with your data. Most FIDs are used in conjunction with gas chromatography systems; investigate if this also fits your testing needs.
Features of flame ionization detectors (fids)s
The FID that you rent or lease from the KWIPPED network of suppliers will have an entry port, exhaust port, display unit, and the internal features described in How FIDs Work. The display usually presents the data in graph-form with the x-axis being time and the y-axis the measurement of ions (indication of the amount of organic matter). The unit may also have the ability to connect to a computer for further data storage and analysis.
How flame ionization detectors (fids)s work
A gas enters the FID, usually through the bottom, and rises through the device. The FID usually has an oven at the entrance; this keeps the gas in its gaseous form and prevents the organic material from depositing on the FID. Hydrogen fuel and an oxidant are added to the gas, which then travels up past a positive electrode to a flame. The positive electrode helps repel the reduced carbon ions produced by the flame toward the collector plates. The collector plates are usually in tube form and are connected to an ammeter, which detects the ions. This information is sent through an amplifier and integrator to the display system.
About flame ionization detectors (fids)s
Flame ionization detectors (FIDs) measure the organic matter in a gas stream. They are most commonly used in conjunction with gas chromatography systems. Chromatography is a method of separating organic and inorganic matter. FIDs are used to test gas emissions. Once the gas is passed through the FID it will have been oxidized and is no longer in its original for, and it cannot be tested further. FIDs cannot measure inorganic matter, but some models have the added capability of CO and/or CO2 measurement.