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Product Overview
The Intelligent Dual-Channel Constant Flow Atmospheric Sampler uses the solution absorption method and is specifically designed for the collection of gaseous and vapor-phase pollutants such as SO₂ and NOₓ from ambient and indoor air. Compact and portable, the device is easy to operate and provides stable flow performance. It is suitable for both routine and emergency monitoring of gaseous pollutants and aerosols and is widely applied in environmental monitoring, public health, occupational safety, supervision, military, research, and educational settings.
Technical Principles
The sampler features a dual-channel system, enabling simultaneous collection of two different gases or parallel samples, with independent control of each channel. An electronic flow meter provides automatic and precise flow control, while a high-performance diaphragm pump ensures constant flow sampling. The system automatically compensates for variations caused by voltage fluctuations, resistance, and temperature changes. An integrated intelligent temperature control system provides automatic heating to prevent the absorption solution from freezing, ensuring stable sampling. Collected data can be exported via USB or printed via Bluetooth for real-time management and analysis.
Key Features
- Dual-Channel Sampling: Simultaneously collects two gases or parallel samples with independent control, meeting diverse monitoring needs.
- Precise Flow Control: Electronic flow meter automatically adjusts flow and compensates for voltage, resistance, and temperature variations.
- High-Performance Pump: Imported diaphragm pump with corrosion resistance, low noise, long lifespan, and overload protection.
- Intelligent Temperature Control: Automatic heating prevents absorption solution freezing, maintaining stable sampling conditions.
- Data Protection & Recovery: Sampling data is automatically protected during power loss and resumes upon power restoration.
- Data Export & Printing: Supports USB export and Bluetooth printing for convenient on-site data management.
Applications
- Environmental Monitoring: Monitors gaseous pollutants in ambient air to support regulatory agencies in detecting and controlling air pollution sources.
- Indoor Air Quality Monitoring: Evaluates air quality in offices and residential spaces, ensuring compliance with indoor air standards.
- Emergency Monitoring: Provides real-time monitoring during sudden environmental pollution events, delivering critical data to authorities.
- Research & Education: Supports laboratory experiments and teaching demonstrations in environmental monitoring for scientific and educational institutions.
- Occupational Safety & Supervision: Monitors workplace gas concentrations to protect workers’ health and safety.
| Main Parameter | Range | Resolution | Accuracy |
| Sampling Flow | (0.1~1.0) L/min | 0.1L/min | Better than ±2.5% |
| Flow Stability | / | / | Better than ±2.0% |
| Flow Repeatability | / | / | Better than ±2.0% |
| Pre-Pressure | (-35~35) kPa | 0.1kPa | Better than ±2.5% |
| Atmospheric Pressure | (60~120) kPa | 0.1kPa | Better than ±0.5kPa |
| Temperature Control Range | (15~30)℃ | 1℃ | Not more than ±1.5℃ |
| Operating Temperature | (-30~50)℃ | ||
| Power Supply | AC220V±10% 50Hz | ||
| Built-in Lithium Battery | 7.4V 10Ah | ||
| Continuous Operating Time | >15h | ||
| Noise | <55dB(A) | ||
| Power Consumption | <50W | ||
| Dimensions | 240mm×180mm×240mm | ||
| Weight | About 3kg | ||
Wobo Industrial Equipment Co., Ltd.









