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PD-12 Ex-proof Suction Type


PD-12 Ex-proof Suction Type

PD-12 Series offers suction type detectors with integrated readout display. They are lightweight units that are suited for both indoor and outdoor installations.

Depending on the model chosen, detectors are available for the detection of combustible gases and CFCs in various ranges.

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
PD-12A Hot-wire Semiconductor Combustible, CFC
PD-12B Catalytic Combustion Combustible, CFC
PD-12C Thermal Conductivity Combustible