Advantages of Flammable Gas Detectors Based on Infrared Principle
Flammable gas detectors are mainly categorized into two types based on detection principles: catalytic combustion and infrared absorption. Catalytic combustion flammable gas detectors are widely applied with low cost and mature technology. However, they require annual calibration and their sensors have a limited service life. Most gas detector manufacturers produce catalytic combustion flammable gas detectors.
Representative models include: MC-W from BW Technologies (Canada), GB90 EX from Industrial Scientific, Impulse XP from Honeywell, EX2000 and GDP2000 flammable gas detectors from Oldham, as well as PAC EX and X-am 2000 flammable gas detectors from Dräger.
Infrared-type flammable gas detectors feature high detection accuracy, long service life, excellent stability and low maintenance costs. Infrared sensors detect hydrocarbon flammable gases in the ambient environment by measuring the absorption of infrared light sources. In certain application scenarios, infrared gas detectors serve as an ideal replacement for traditional catalytic combustion detectors.
For example, Dräger X-am 7000 multi-gas detector is equipped with an infrared port for connecting infrared sensors for flammable gases and carbon dioxide, making it a versatile product. It can be configured with various accessories according to customer requirements, with options of diffusion or pump suction sampling, rechargeable or non-rechargeable power supply, and optional data logging function.
