Gas Detection and Alarm Systems

Extraction Type Gas Detector Head with Display PD-12 series

Features

  • Small and lightweight with concentration and alarm display
  • Extraction type with hydrogen explosion proof (Ex d IIB + H2 T4X)
  • Detecting decreased flow rate function except PD-12C (option)
  • Environmental friendly product
  • Water and dust-proof construction (Degree of protection: IP65)

Specifications

Model PD-12A PD-12B PD-12C
Detection Principle Hot wire semiconductor Catalytic combustion Thermal conductivity
Gas Detected As per specifications
Sampling Method As per specifications
Suction Flow Over 0.5L/min
Detection Range As per specifications
Alarm Set Value As per specifications
Alarm Accuracy Combustible gas: ±25% of alarm set value under identical conditions
Toxic gas: ±30% of alarm set value under identical conditions
Alarm Delay Combustible gas: Within 30 seconds with 1.6 times of alarm set conditions
Toxic gas: Within 60 seconds with 1.6 times of alarm set concentration
Alarms Gas alarm: Red LED lamp flashes
Trouble alarm: Yellow LED lamp flashes (sensor disconnection, sensor zero drop,power supply voltage error, etc.)
Display Four-digit digital LED display
Output Gas concentration analog signal
・4-20mADC (common to the negative side of power supply)
Gas alarm contact or failure contact*1 (one stage only)
・1a no-voltage contact output, Non-latching
・Rated load: 0.5A at 250VAC or 0.5A at 30VDC (resistance load)
Operation At 4 points of magnetic switches
Explosion-proof II 2G Ex d IIB + H2 T4 Gb (ATEX)*2
Ex d IIB + H2 T4 X (Japan EX)
Degree of Protection IP65
Applicable Cable Cable outer diameter: 10.5mm to 14.5mm
6-conductor shielded cable: CVV-S 1.25mm2 or 2.0mm2
Operating
Temperature/Humidity*3
-10 to +50 °C
10 to 90 %RH (0 to 50 °C)
Power Supply 24 VDC (±20%)
Power Consumption 7.5W max.
Dimensions W133 x H260 x D132 mm (excluding protrusions)
Weight Approx. 5.2kg

*1 Gas alarm contact is a standard issue. Please specify if you wish a failure contact.
*2 Some are not ATEX approved. For further information, please ask.
*3 No radical temperature or humidity changes and no condensing.

Connectable Alarm Units

UV-810(Multi-point)、V3 typeMNV-100M(One-point)

Approvals

 

  • CE marking
  • UKCA
  • IECEx
  • ATEX
  • ANZEX
  • China Ex (NEPSI)
  • Korea Ex (KOSHA)*
  • India Ex (PESO)
  • Taiwan Ex (ITLI)
  • Japan Ex

*Only PD-12A/B

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