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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
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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 |
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