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LEL-IR Sensor Behavior

The Non-Dispersive Infrared (LEL-IR) sensor detects combustible gases using infrared absorption. It is suitable for use in oxygen-deficient or inert environments.

The LEL-IR sensor exhibits the following key behaviors:

  • Operates without oxygen, making it ideal for inert or confined spaces.

  • Does not detect hydrogen (H₂) or acetylene (C₂H₂).

  • Resistant to poisoning, contamination, and electromagnetic interference.

  • Calibration must be performed in a flammable-free environment using appropriate span gas.

  • High-gas levels may temporarily affect readings, but the sensor typically recovers once gas clears.

  • A-CART only operates in pumped mode, regardless of the configuration.