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KQ500T series fixed gas detector is also called gas sensor.It transforms the gas density in the operating site into RS485. With LED display, detector's sensor can be changed and reused as soon as it is connected to electricity.
KQ500D detector has excellent performance, stable operation, easy maintenance. detector can detect various gas, it meet various requirements in the operation site; it has been widely used in petrol, chemistry, metallurgy, artifice, gas transportation, biological medicine and water procession etc.
l RS485 output.
l LED site display that is suitable for factory
l Standard three buttons: so an individual can operate the detector on site.
l Automatic identify and display the sensor failures, and output the corresponded current signal at the same time.
l The key operation needs to input password to prevent wrong operation.
l Simple calibration function; reducing measuring error
l Two levels' light alarm, relay output (connected with audible and visual alarm outside or start the exhaust system)
| Detecting Gas | combustible gas, toxic gas, oxygen |
| Measuring Range | see the chart |
| Working Voltage | 24VDC±15% |
| Working Temperature | toxic gas: - 20 ℃ ~ + 50 ℃ |
| Combustible gas: - 40 ℃ ~ + 70 ℃ | |
| Working Humidity | 10-90% R.H.(no condensation) |
| Signal output | RS485 signal output |
| Sensor type | Catalytic combustion; electrochemical sensor |
| Deviation | ≤± 3% F.S |
| Respond Time | T90 < 30 s |
| Display model | LED display |
| pressure range | 80-120KPa |
| Electrical interface | M20 x 1.5 mm |
| Explosion-proof level | Exd IICT6(used for explosion proofing detector)； |
| Protection Class | IP66 |
| Transition cable | four core shield cable RVVP 4×1.0mm2; 4×1.5mm2 |
| Transmission distance | ≤1200m |
| Weight | 160mm(L)*140mm(W)*85mm(H) about 1.5kg |
| Shell material |
precision casting aluminum shell, antirot material; Sensor parts uses 304 stainless steel; Dust screen uses 316 stainless steel |
| Product Model | Detected Gas | Measuring Range | Resolution | Respond Time (T90) | Sensor Life |
| KQ500T-O2 | O2 | 0－30%vol | 0.1%vol | ≤15s | 2-3y |
| KQ500T-CO | CO | 0－1000ppm | 1 ppm | ≤15s | 2-3y |
| KQ500T-H2S | H2S | 0－100ppm | 1 ppm | ≤15s | 2-3y |
| KQ500T-HCN | HCN | 0－20ppm | 0.1 ppm | ≤30s | 2-3y |
| KQ500T-CL2 | CL2 | 0－20ppm | 0.1 ppm | ≤30s | 2-3y |
| KQ500T-O3 | O3 |
0－5ppm
0-100ppm |
0.1 ppm 1ppm |
≤25s | 2-3y |
| KQ500T-NH3 | NH3 | 0－100ppm | 1 ppm | ≤30s | 2-3y |
| KQ500T-H2 | H2 | 0－1000ppm | 1 ppm | ≤30s | 2-3y |
| KQ500T-NO2 | NO2 | 0－20ppm | 0.1 ppm | ≤25s | 2-3y |
| KQ500T-PH3 | PH3 | 0-20ppm | 0.1 ppm | ≤15s | 2-3y |
| KQ500T-C3H3N | C3H3N | 0-100ppm | 1ppm | ≤30s | 2-3y |
| KQ500T-NO | NO | 0-250ppm | 1ppm | ≤25s | 2-3y |
| KQ500T-HCL | HCL | 0-20ppm | 0.1ppm | ≤25s | 2-3y |
| KQ500T-SO2 | SO2 | 0－20ppm | 0.1ppm | ≤15s | 2-3y |
| KQ500T-EX | Combustible gas | 0-100%LEL | 1%LEL | ≤30s | 3-5y |
| KQ-CO2 | CO2 | 0-5000ppm | 1ppm | ≤30s | ＞5y |
| 0-5.00%vol | 0.01%vol | ≤30s | ＞5y | ||
| As for unlisted detected gas and measuring range, please contact with our company | |||||
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