The SEMS Type I system was designed and manufactured in Australia primarily for use on mobile diesel equipment in underground coal mining.

The systems basic design is to detect and monitor methane in the surrounding air. If the methane in the atmosphere reaches a pre-determined low, but still safe level, the SEMS system will alert the driver via an indicator light on the display assembly in the operator’s cabin.

If the methane in the atmosphere reaches a pre-determined HIGH level, the SEMS system will shut down the machines engine and also indicate the shutdown to the driver via an indicator light on the display assembly.

The SEMS Type I system operates in parallel with the existing engine shutdown system, therefore no engine supplementary is required. If the methane in the atmosphere reaches a pre-determined low, but still safe level, the SEMS Type I system will alert the driver via an indicator light on the display assembly in the operator’s cabin.

If the methane in the atmosphere reaches a pre-determined HIGH level, the SEMS Type I system will shut down the machines engine and indicate the shutdown to the driver, via an indicator light on the display assembly.

The shutdown of the machine is effected via a solenoid valve, which controls the pilot air pressure for the existing shutdown valve on the machine. Should there be a malfunction in the solenoid circuit, the driver is also alerted with another LED indicator light.

The SEMS Type I system is powered by the machines alternator whilst the engine is running. The battery pack will operate the SEMS Type I system for approximately 11 hours if the machines alternator fails. The I.S. Battery pack is sealed and if required can be changed underground.

The SEMS Type I system is supplied with flameproof box with I.S. power supply circuit board, with cable and plug. SETCO offers a calibration exchange program for the methane sensor.