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Product Overview
The A-Type Intelligent Dual-Channel Constant-Flow Air Sampler is designed for the collection of gaseous and vapor-phase air pollutants such as SO₂ and NOₓ. The device is compact and portable, providing stable flow rates while significantly reducing labor intensity. Equipped with a high-performance 32-bit processor, dot-matrix LCD, and advanced sensors, it ensures precise, stable data collection. It is widely used in environmental monitoring, occupational hygiene, labor protection, safety supervision, military, research, and education.
Working Principle
The sampler employs a dual independent sampling system with electronic flow meters and high-performance diaphragm pumps to maintain constant flow. A built-in temperature control system prevents freezing of sampling solutions, while dust filters protect the pump and gas pathways. During sampling, the device automatically calculates cumulative sample volume and converts it to standard conditions based on ambient temperature and pressure, ensuring accurate and reliable data.
Key Features
- Dual-Channel Sampling: Collects two gases or parallel samples simultaneously, with independent control for each channel, providing flexibility for diverse monitoring needs.
- Accurate Flow Control: Electronic flow meters automatically compensate for voltage, resistance, and temperature changes to maintain stable flow.
- High-Performance Diaphragm Pump: Corrosion-resistant, low-noise, long-lasting, and equipped with overload protection.
- Temperature Control Protection: Automatic heating prevents solution freezing, suitable for low-temperature environments.
- Data Protection and Recovery: Automatically saves data during power failure and resumes sampling upon power restoration.
- Data Export and Printing: Supports USB export and Bluetooth printing for convenient field management.
- Particulate Filtration: High-efficiency dust filters protect the gas path system.
- LCD Display: Chinese dot-matrix display with automatic contrast adjustment for intuitive, clear interface.
- Cumulative Sample Volume Calculation: Automatically calculates and converts to standard volume, ensuring precise measurement.
Applications
- Environmental Monitoring: Collection and monitoring of ambient air pollutants.
- Indoor Air Quality Assessment: Meets the requirements of the "Standards for Indoor Environmental Pollution Control in Civil Construction Projects".
- Emergency Response: Rapid sampling and monitoring during sudden pollution events.
- Research and Education: Supports environmental research and teaching experiments at research institutes and universities.
- Occupational Safety and Supervision: Monitors hazardous gases in workplaces to ensure worker safety.
- Military and Security: Air quality monitoring in military and security zones to maintain operational safety.
| Main Parameter | Range | Resolution | Accuracy |
| Sampling Flow | (0.1~2.0) 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 |
| Operating Temperature | (-30~50) ℃ | ||
| Power Supply | AC220V±10% 50Hz | ||
| Built-in Lithium Battery | 7.4V 10Ah | ||
| Continuous Operating Time | >8h | ||
| Noise | <55dB(A) | ||
| Power Consumption | <50W | ||
| Dimensions | 240mm×180mm×240mm | ||
| Weight | 3kg | ||
Wobo Industrial Equipment Co., Ltd.









