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Prism Gas Detection Pvt. Ltd.

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Online Gas Detection System ( KD-12)

Online Gas Detection System ( KD-12)

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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

Model	KD-12
Corresponding Sensor Type	Hot wire semiconductor type (KD-12A) or Catalytic combusion type(KD-12B)
Sampling Method	Diffusion
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
Waring Display	Gas alarm (1st 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 300Ω including interconnection resistance Gas alarm contact (1st stage only) 1a 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 Display	Four- digit digital LED display (direct linear reading of concentration)
Operation	At 4 points of magnetic switches
Cable Connection	Screw-less terminal blocks
Explosion-proof	Ex d IIC T5 (Japan TIIS), Ex d IIC T6 (China Explosion-proof inspection)
Degree of protection	IP65 (internal instrument)
CE Marked	Complied with CE Directive 89/336/EEC,92/31/EEC, 93/68/EEC
Applicable Cable	Cable outer diameter (10 to 13 mm dia.) 5-conductor cable (power supply, analog signal and gas alarm contact): 3-conductor cable (power supply and analog signal): CVV-S 2mm2
Temperature and Humidity range	Temperature :- 10 to 50 degree C Humidity : 10% to 905 (0 to 50 degrees C) No radical temperature or humidity changes and no condensation
Power Supply	24V DC (18 to 30V DC)
Power Consumption	3 W or less
Dimensions	158(W) X 116 (H) X 68 (D) mm (excluding protrusions)
Weight	Approx. 1.2Kg