Product Introduction
The on-site power supply adopts 10~30V DC wide-voltage power supply, supports the detection of multiple gases, and the range can be customized;
The explosion-proof gas transmitter adopts imported first-tier brand electrochemical sensors, featuring rapid and sensitive response and strong anti-interference ability;
Adopts remote infrared remote control technology, and through our company's unique compensation algorithm and multi-stage standard gas calibration, it also has the characteristics of long lifespan, high precision, high repeatability and high stability;
Optional high-quality LCD display, values can be viewed directly on site, and can also be displayed clearly at night;
The product adopts a wall-mounted explosion-proof enclosure, which is easy to install, with protection grade IP66 (the cable outlet end requires the customer to provide a flameproof enclosure introduction device that meets the requirements of GB/T 3836.2 (such as an explosion-proof sealing joint) for use). It can be applied to harsh on-site environments.
| Power supply | 10~30V DC | |
| Average Power Consumption | 0.35W Additional power consumption when alarm light is working: 1W |
|
| Output signal | 485 type: 485 output (standard ModBus protocol) Analog type: 4~20mA, 0~5V, 0~10V 4G type: 4G wireless transmission |
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| Repeatability | NH3/H2/CO(1000ppm)/H2S/NO2/SO2/O3/PH3/CH2O/CL2:≤2% CO(2000ppm) :≤3% O2/N2:≤1% |
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| Stability | CO(1000ppm)/H2S/H2/NO2/SO2/NH3/PH3/CL2 | ≤2% signal value/month |
| O3/CH2O | ≤7% signal value/year | |
| CO(2000ppm)/O2/N2 | ≤5% signal value/year | |
| 工作温度 | H2/CO/H2S/NO2/SO2/O2/NH3/PH3/O3/CH2O/CL2/N2：-20~50℃ | |
| Working humidity | NH3/H2/CO/H2S/NO2/SO2/O3/PH3/CH2O/CL2: 15~90%RH non-condensing O2/N2: 5~95%RH non-condensing |
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| Operating Pressure | NH3/H2/CO(1000ppm)/H2S/SO2/O2/O3/PH3/CH2O/N2/CL2 | 90~110kPa |
| NO2 | 91~111kPa | |
| CO(2000ppm) | 80~120kPa | |
| Preheating Time | NH3/H2/CO/H2S/NO2/SO2/O3/O2/PH3/CH2O/CL2: ≥5min N2:≥15min |
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| Explosion-proof marking | Ex db IIC T6 Gb；Ex tb IIIC T80℃ Db | |
| Relay load capacity | 250VAC 1A/30VDC 1A | |
| Measurement parameters of each element | See Appendix A | |
Appendix A:
| Gas name | Optional range | 分辨率 | Accuracy | Zero Drift | Response time |
| O2 | 0-30 %VOL | 0.1 %VOL | ±2%FS | ±0.3%VOL | ≤10s |
| H2S | 0-100 ppm | 1 ppm | ±2ppm or ±10% | ±5ppm | ≤35s |
| CO | 0-1000 ppm | 1 ppm | ±5ppm or ±10% | ±3ppm | ≤30s |
| 0-2000ppm | 1 ppm | ±5ppm or ±10% | ≤±10ppm | ≤30s | |
| NO2 | 0-20 ppm | 0.1 ppm | ±5%FS | ≤±0.5ppm | ≤30s |
| 0-2000 ppm | 1 ppm | ±5%FS | ≤±20ppm | ≤60s | |
| SO2 | 0-20 ppm | 0.1 ppm | ±5%FS or ±10% | ≤±0.5ppm | ≤45s |
| 0-2000 ppm | 1 ppm | ±5%FS or ±10% | ≤±4ppm | ≤70s | |
| H2 | 0-1000 ppm | 1 ppm | ±5%FS | ≤±10ppm | ≤70s |
| NH3 | 0-50 ppm | 0.1 ppm | ±8% | ≤±2ppm | ≤90s |
| 0-100 ppm | 1 ppm | ±8% | ≤±2ppm | ≤90s | |
| O3 | 0-100ppm | 1 ppm | ±6%FS（@50ppm、25℃、50%RH） | ≤±0.5ppm | ≤30s |
| CH2O | 0-5ppm | 0.01ppm | Accuracy: ±5%FS (@1ppm, 25℃, 50%RH) | ≤±0.5ppm | ≤35s |
| CL2 | 0~20ppm 0~50ppm |
0.1ppm | ±10% | ±3%FS | ≤60s |
| CL2 | 0~100ppm | 1ppm | ±10% | ±3%FS | ≤60s |
| N2 | 70~99.9%VOL | 0.1%VOL | ±0.6%VOL | ±0.3%FS | ≤10s |
