The D12 digital gas transmitter eliminates poisoning problems that are inherent in catalytic bead sensors. It uses infrared sensing technology that isn't susceptible to the degradation of sensor performance from silicon vapours and hydrogen sulphide.

The transmitters are specifically designed for use in hazardous areas that continuously monitor critical sensor functions, indicating any sensor problems on the display/analog output. The cast aluminium housing is rated for Class 1, Division 1, Group B, C, D locations and is UL, FM, and CSA certified.

The infrared sensing element is protected by an explosion-proof stainless steel housing and flame arrestor.

The D12 digital gas transmitter can be used in water and wastewater treatment and chemical processing, as well as pharmaceutical, brewery, refinery and metals processing facilities.

The monitor has an LCD display that shows the gas concentrations in large numbers. It has a backlight for increased visibility.

An internal datalogger stores the measured gas values at user definable intervals. They can be recalled when needed on the LCD display or downloaded using the MOD-BUS™ interface.

Technical information:

  • Gas type: Combustible gas, explosive gas, carbon dioxide (CO2), volumetric methane, or nitrous oxide. Combustible gas detector selectable for methane, ethane, propane, or butane.
  • Sensor type: Single path Non-dispersive Infrared (NDIR)
  • Sensor separation: Maximum 25’ cable from sensor to transmitter