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Gas Transmittor with Display

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Features:

  • Simpler, smarter and reliable gas detector with digital display
  • Simple and cost effective installation
  • Rugged, compact and lightweight design
  • Environmentally friendly Product
Approvals:
  • Ex d IICT5 (Japan TIIS)
  • Ex d IIC T6 (China Explosion-proof Inspection)
  • CE Marking (EMC Directive)
  • UL and ATEX standard*
  • China Fire Equipment Inspection* (* Pending)
Other Features:
  • Simple, and reliable gas detector
    • Bright LED digital display
    • Maintenance mode function
    • Programmable alarm relay
    • Proven Cosmos gas sensor technology
  • Cost effective and easy installation
    • Non-intrusive, one-man calibration with relay
    • Deactivation feature
    • Screw-less terminal blocks
    • 4-20mA linear output and on-board relay (standard)
  • Rugged and compact design
    • Protection rating IP65 (standard)
    • Size as W158 x H116 x D68mm, weight 1.2kg
  • Environmentally-friendly product
    • Lead-free PC board, electronics parts and solders
Specifications
ModelKD-12
Corresponding Sensor TypeHot wire semiconductor type (KD-12A) or Catalytic combustion type (KD-12B)
Sampling MethodDiffusion
Alarm Accuracy
  • Combustible gas: ±25% of Alarm Set Value
  • Toxic gas: ±30% of Alarm Set Value
Alarm Delay
  • Combustible gas: 30s or less at 160% concentration of an Alarm Set Value
  • Toxic gas: 60s or less at 160% concentration of an Alarm Set Value
Warning Display
  • Gas alarm (1 st stage only)
  • Red lamp flashes
  • Trouble alarm (sensor breaking, sensor zero drop, power supply voltage error, etc.) Yellow lamp flashes
External Output
  • Gas concentration analog signal (direct linear reading of concentration)
  • 4 to 20 mA DC (common to the negative side of power supply)
  • 0.9 mA or less at Trouble alarm
  • The load resistance of analog signal is to be less than 300 including interconnection resistance Gas alarm contact (1 st stage only)
  • 1 a non-voltage relay contact / Non-latching
  • Rated load: 0.5 A at 250V AC or 0.5 A at 30V DC (resistance load)
Gas Concentration DisplayFour-digit digital LED display (direct linear reading of concentration)
OperationAt 4 points of magnetic switches
Cable ConnectionScrew-less terminal blocks
Explosion-proofEx d IIC T5 (Japan TIIS), Ex d 110 T6 (China Explosion-proof Inspection)
Degree of protectionIP65 (internal instrument)
CE MarkedComplied with CE Directive 89/336/EEC, 92/31/EEC. 93/68/EEC
Applicable CableCable outer diameter (10 to 13 mm dia.)
  • 5-conductor cable (power supply, analog signal and gas alarm contact): CVV-S 1.25 mm2
  • 3-conductor cable (power supply and analog signal): CVV-S 2mm2

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