Gas & Flame Detection | Fixed Gas Detector Transmitters

KD-12 Ex-proof Structure


KD-12 Ex-proof Structure

KD-12 Ex-proof structure offers diffusion type detectors integrated with the sensing element and the readout display. They are small, lightweight units that are suited for both indoor and outdoor installations.

Depending on the model chosen, detectors are available for detection of various gas types, i.e., Flammables, Toxic Gas & Oxygen.

The detectors come with both digital and analogue outputs that allow easy interfacing with a central supervisory system for larger applications.

Technical Data

  • External Output:
    • Gas Concentration Analog Signal: 4 to 20mA DC (common to negative line of power supply)
    • Gas Alarm Contact: 1a non-voltage relay contact/ non-latching
    • Rated Load: 0.5A at 250V AC or 0.5A at 30V DC.
  • Display: 4-digit digital LED display with Gas Alarm Warning Light (red) and Trouble Warning Light (yellow)
  • Power Supply: 24V DC
Model Sensor Type Target Gas
KD-12A Hot-wire Semiconductor Combustible/Toxic
KD-12B Catalytic Combustion Combustible/Toxic
KD-12C Thermal Conductivity Hydrogen, Helium, Carbon Dioxide
KD-12D Electrochemical Cell Carbon Monoxide, Hydrogen Sulfide
KD-12O Galvanic Cell Oxygen
KD-12R NDIR Methane & LPG