Advantages of Infrared Gas Detection
Does not require the presence of O2
Not affected by typical catalytic poisons
Lower power consumption than catalytic bead sensor
Accuracy very stable
Sensor available for 100% v/v CH4
5 year MTBF - lower cost of ownership over lifespan
Limitations of Infrared Gas Detection
Cannot detect hydrogen, acetylene, carbon disulfide
High cost compared to catalytic bead sensor
Affected more by changes in temperature and pressure.
Response is linear to methane but non-linear to other hydrocarbons