KGD - WQ - 531 Infrared Exhaust Gas Sensor Module For Vehicle Exhaust Emission Monitoring And Environmental Monitoring
KGD - WQ - 531 Infrared Exhaust Gas Sensor Module for Vehicle Exhaust Emission Monitoring and Environmental Monitoring
Product Introduction
KGD - WQ - 531 Infrared Exhaust Gas Sensor Module measures the concentrations of CO, CO₂ and HC based on high - precision dual - beam infrared gas analysis technology. It uses micro - flow infrared dual - gas - chamber technology to measure NO. The gas chamber is composed of a measured gas chamber and a reference gas chamber. After the infrared light source irradiates the measured gas and the reference gas respectively, the signal waveforms formed in the detector are processed by the signal processing system, and the concentration of the measured gas is obtained through the ratio. It has good anti - interference performance and high accuracy, and is suitable for vehicle exhaust emission monitoring and environmental monitoring.
Product Features
- Adopts high - precision dual - beam NDIR and micro - flow NDIR sensor technologies.
- The micro - flow NDIR module adopts a half - separated gas - chamber design, ensuring high accuracy.
- Automatic constant - temperature heating, temperature and pressure correction.
- Modular sensor design for easy integration.
Technical Parameters
| Gas Type | Measuring Range | Absolute Error | Relative Error |
| HC | (0 - 2000) ppm | ± 4ppm | ± 3% |
| CO | (0.00 - 5.00) % | ± 0.02% | ± 3% |
| CO₂ | (0.0 - 16.00) % | ± 0.3% | ± 3% |
| NO | (0 - 4000) ppm | ± 25ppm | ± 4% |
| Note | Meeting either the absolute error or relative error requirement in the table is acceptable. | ||
| Resolution | HC/NO: 1ppm; CO₂: 0.01%; CO: 0.001% | ||
| Repeatability | ± 1%F.S. | ||
| Stability | ± 2%F.S./24h | ||
| Response Time | HC/CO/CO₂: T90 ≤ 3.5s; NO: T90 ≤ 4.5s | ||
| Communication | Standard Modbus protocol (protocol can be customized) | ||
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