CAC 103DS1VCH4A Methane in Air Test Gas

The CAC 103DS1VCH4A supplies a methane-in-air mixture at the lower end of the combustible range, giving technicians a dependable low-span point when calibrating flammable-gas detectors. At roughly one-fifth of the lower explosive limit, it is ideal for confirming that a monitor responds early – well before an atmosphere becomes dangerous.

Built for catalytic and infrared LEL sensors

Combustible-gas sensors gradually lose sensitivity as catalytic beads age or optics foul. Calibrating with the 103DS1VCH4A methane test gas restores confidence that the %LEL reading on the display reflects the real hazard rather than a drifting sensor.

A repeatable low-span reference

Methane in air is the accepted benchmark for LEL calibration, and a stable certified blend removes the guesswork from routine gas-detector servicing and pre-entry checks.

For controlled delivery, use a CAC FF-100 regulator. Talk to Hinco Instruments in Perth for pricing, availability and matching span gases.