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Fidamat 6 (Total Hydrocarbons)



Siemens Fidamat 6 (EN).PDF

Gas analyzers with an FID (flame ionization detector) are well suited for the continuous measurement of total hydrocarbons. To a first approximation, the display is proportional to the number of C atoms in the respective molecule.


The Siemens FIDAMAT 6 analyzers cover a wide range of applications: From trace measurement of hydrocarbons in pure gases - made possible by high resolution and low differences in the response factors - to total content measurement for hydrocarbons in the presence of corrosive gases, almost all applications can be carried out. A requirement for the latter application is the use of a filter that is free of wear and resistant to corrosion, and the use of a quartz capillary as the measuring gas capillary.


The high, adjustable operating temperature for the internal gas path and the detector also allows the measurement of high-boiling mixtures and the measurement of hydrocarbons at vapour concentrations of up to 100%.


Particular attention has been paid to the safety functions When the analyzer is switched on, ignition is carried out automatically when the setpoint temperature has been reached and, for versions "with pump", the pump is also started up.  In case of accidental extinguishing of the detector flame, it is automatically re-ignited. If it does not ignite, a warning message is generated and the gas supply is automatically shut off using a solenoid valve. In the case of a failure, a purging function prevents the build-up of toxic, corrosive or explosive substances inside the device.  Alongside transmission of the fault message via binary output contacts, all status messages can also be called up individually on the display or via the serial interface.




  • Measure in the presence of up to 100 % H2O vapor
    • In ultra-pure gas applications
    • With high-boiling components (up to 200 °C)
    • In the presence of corrosive gases (with preliminary filter).
  • Extremely low cross-sensitivity to interfering gases.
  • Low consumption of combustion air
  • Low influence of oxygen on measured value
  • Warnings and Faults for failure of combustion gas
    • If the flame is extinguished
    • To indicate pump and filter faults

MEASURED GASES: Hydrocarbons



Continuous Emissions Monitoring (CEM), Gas analysis - process, Gas Analysis, CEMS Extractive


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