Combustion based CV Analyzers
Automatic ignition device, is prone to be disturbed by gas flow, pressure and gas source.
Spectrometer based, on-line and continuous.
Gas proportion dependent, complex and less accurate.
Standard cylinder gas.
5 steps: sampling, ignition, combustion, heat exchange and vent, more moving parts.
3 steps: sampling, measure and vent, less moving parts.
No flame, no chemical reaction.
Slow. Limited by combustion and heat exchange.
Pressure regulator, igniter, heat exchanger, etc.
No consuming parts.
Calorific Value and Wobbe Index. No indication of gas composition changing.
Calorific Value and CO,CH4,H2 concentration,real quantitative detection.