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Mô tả
Product Overview
KQ500D series Fixed gas detector (also called gas sensor or gas transmitter). It can detect various gases such as flammable gas, O2,H2S,CO,HCN,NO2,SO2,NH3,HCL,CL2,H2 etc, widely used in metallurgy, petrol, petrifaction, chemistry, light industry, coking, municipal administration, gas, pharmacy, sewage dealing and many other special industries and fields.
The device adopts intrinsic safety type channel design, standard 4~20mA two wires signal output. It can transfer data in long distance, can get into the DSC system directly. The detector has high sensitivity, quick response, long lifetime, polarization time and many other characteristics
Technical Parameters
| Detecting gas | combustible gas, toxic gas, oxygen |
| Measuring Range | according to the gas detected |
| Deviation | ≤± 3% F.S |
| Respond Time | T90 < 30 s |
| Working Temperature | toxic gas: – 20 °C ~ + 50 °C |
| Combustible gas: – 40 °C ~ + 70 °C | |
| Working Humidity | < 95% R.H. no condensation |
| Sensor | electrochemical sensor; catalytic combustion type sensor for KQ500-EX |
| Sensor life | 2-5 year |
| Working Voltage | 24V DC±15% |
| Working Time | continuously as long as power input |
| Protection Class | IP66 |
| Weight | ≤900 g |
| Fixed parameter | Fixing type: wall-mounted type |
| Transition cable: two core shield cable | |
| (KQ500-EX uses three core shield cable), | |
| section 2×1.5mm2, external diameter 10mm | |
| Transmission distance ≤1000m | |
| Technical parameter | Working voltage: 16~30VDC |
| Working current: KQ500-EX is 120mA, others ≤50 mA | |
| Output signal: 4~20mA standard signal two wire type output | |
| (KQ500-EX three wire type) | |
| Explosion-proof Level | Exd IICT6(used for explosion proofing detector); |
| ExiaIICT4(used for intrinsic safety type detector) |
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