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Product Overview
The Portable Engine Emissions Analyzer is a lightweight, high-precision instrument designed for real-time measurement of exhaust gases, including NO, NO₂, CO₂, and other components. It combines Ultraviolet Differential Optical Absorption Spectroscopy (UV-DOAS), Non-Dispersive Ultraviolet (NDUV), and Non-Dispersive Infrared (NDIR) technologies to provide accurate, multi-component gas detection. With its compact design and built-in power supply, the analyzer is ideal for on-site emissions testing of non-road diesel engines (including marine engines), non-road machinery, and heavy-duty diesel vehicles, offering reliable data for environmental monitoring and engine development.
Working Principle
The analyzer uses UV-DOAS, NDUV, and NDIR technologies to simultaneously detect multiple exhaust gas components. It measures NO and NO₂ directly without requiring an NOx converter. A multi-stage filtration system protects the sensors from contamination, ensuring long-term stability and instrument longevity. Measurement data can be read in real time via Bluetooth or a dedicated app, with options for printing or remote monitoring.
Key Features
- Simultaneous Multi-Gas Measurement: Detects NO, NO₂, CO₂, and other gases without cross-interference for accurate results.
- No NOx Converter Required: Direct measurement of NO and NO₂ simplifies operation and reduces maintenance.
- Sensor Protection: Multi-stage filtration prevents contamination, extending sensor life.
- Robust Power Supply: Built-in high-capacity portable battery allows extended field operation.
- Bluetooth & Remote Operation: Supports real-time data printing, app-based visualization, and remote monitoring.
- Expandable Modules: Optional modules for additional gases (e.g., CO) or PN/PM particle measurement.
Applications
- Non-Road Diesel Engine Testing: Suitable for marine engines, construction machinery, and other non-road diesel engines, ensuring compliance with emission standards.
- Heavy-Duty Diesel Vehicle Monitoring: Provides on-site emissions testing for trucks and buses, supporting environmental regulations.
- Engine Development & Calibration: Real-time emission monitoring for engine design optimization and performance tuning.
- Environmental Monitoring & Control: Ideal for government agencies and companies performing field emission checks or pollution control measures.
- Mobile Field Testing: Compact and portable, perfect for fleet testing, mechanical service sites, and on-road measurement.
| Gas Type | Measurement Principle | Measurement Range | Resolution | Relative Error | Absolute Error |
| NO | UV-DOAS | 0~4000ppm | 1ppm | ±2% | ±25ppm |
| NO2 | NDUV | 0~1000ppm | 1ppm | ±2% | ±25ppm |
| CO2 | NDIR | 0~18% | 0.1%VOL | 0~16%:±3% 16~18%:±5% |
0~16%±0.3% |
| Smoke Density | Optical Method | Absorption Coefficient K: (0~16)m⁻¹ | K: 0.01m⁻¹ | ±2.0% | - |
Wobo Industrial Equipment Co., Ltd.









