Wobo Industrial Equipment Co., Ltd.
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Product Overview
The ultra-high precision vehicle exhaust gas analyzer is a professional instrument designed for accurate measurement of multiple gas components in vehicle exhaust. It utilizes dual-beam micro-flow infrared technology to simultaneously detect key pollutants such as CO, HC, CO₂, NO, and O₂, meeting the requirements of high-precision emission testing.
The system complies with the latest Chinese standard GB 18285 for gasoline vehicle emission limits and measurement methods (including dual-idle and simple driving cycle tests). With 00-level measurement accuracy, it provides stable and reliable data for vehicle emission testing and environmental monitoring, making it an essential tool in emission control and regulatory compliance.
Working Principle
The analyzer operates based on the dual-beam micro-flow infrared absorption principle. An infrared light source emits specific wavelengths that pass through the gas sample, where different gas components selectively absorb characteristic wavelengths.
The dual-beam design compares reference and measurement signals, effectively eliminating fluctuations from the light source and environmental interference, ensuring high-precision results.
Oxygen is measured using electrochemical or other sensing technologies, while a specially designed filter gas chamber minimizes cross-interference between gases. In addition, a built-in automatic temperature control system maintains a stable measurement environment, further improving accuracy and reliability.
Key Features
- High Precision & Stability: Dual-beam micro-flow infrared technology ensures accurate and stable measurements for stringent emission standards.
- Multi-Gas Measurement: Simultaneous detection of CO, CO₂, HC, NO, and O₂ improves testing efficiency and data completeness.
- Automatic Temperature Control: Maintains a constant internal environment, reducing errors caused by ambient temperature variations.
- Low Cross-Interference: Advanced filter gas chamber design significantly improves measurement accuracy.
- Low Detection Limit: Suitable for low-emission and 00-level standard vehicles.
- Fast Response: Delivers stable data quickly, ideal for continuous and high-frequency testing.
- Robust Design: Durable structure ensures reliable long-term operation in complex working conditions.
Applications
- Vehicle Emission Testing: Widely used in inspection stations and environmental monitoring agencies for high-precision detection of exhaust pollutants, ensuring compliance with GB 18285 standards.
- Vehicle Inspection & Compliance: Applied in inspection centers for periodic vehicle testing and environmental compliance verification.
- Emission Control Research: Provides accurate data for automotive manufacturers and research institutions to develop and optimize emission reduction technologies.
- Automotive Manufacturing & Quality Control: Used in production and testing processes to ensure vehicles meet emission standards before delivery.
| Gas Type | Measurement Range | Absolute Error | Relative Error |
| HC | (0~2000)×10⁻⁶, (2001~5000)×10⁻⁶, (5001~9999)×10⁻⁶ | ±4×10⁻⁶ | ±3%, ±5%, ±10% |
| CO | (0.00~10.00)×10⁻², (10.01~14.00)×10⁻² | ±0.02×10⁻² | ±3%, ±5% |
| CO2 | (0.0~16.0)×10⁻², (16.01~18.0)×10⁻² | ±0.3×10⁻² | ±3%, ±5% |
| NO2 | (0~4000)×10⁻⁶, (4001~5000)×10⁻⁶ | ±25×10⁻⁶ | ±4%, ±8% |
| O2 | (0.0~25.0)×10⁻² | ±0.1×10⁻² |
