Intelligent Four-Channel Constant Temperature and Flow Atmospheric Sampler

Product Overview

The Intelligent Four-Channel Constant Temperature & Constant Flow Atmospheric Sampler is designed for the simultaneous collection of gaseous and vapor-phase pollutants (e.g., SO₂, NOₓ) in ambient and indoor air. The device meets the "Atmospheric Sampler Verification Procedures" (JJG 956) and "Technical Requirements and Testing Methods for Environmental Air Samplers" (HJ/T 375) standards. It features stable performance, simple operation, and portability, making it suitable for routine and emergency monitoring in environmental protection, public health, occupational safety, industrial supervision, military, research, and educational applications. The sampler is especially effective for solution absorption-based collection of harmful gases.

Technical Principles

The sampler utilizes a four-channel independent system, allowing simultaneous collection of up to four gases or parallel samples, each with independent control. An integrated electronic flow meter maintains constant-flow sampling and automatically compensates for voltage fluctuations, resistance changes, and temperature variations. A high-performance imported diaphragm pump ensures stable sampling, while an anti-backflow dryer prevents absorption liquid from flowing backward. Automatic heating compensates for ambient temperature differences, ensuring stable sampling conditions. Built-in pressure and temperature sensors continuously monitor environmental parameters. The system automatically calculates cumulative sampling volume and converts it to standard conditions. In the event of power loss, the sampler saves its status and resumes sampling upon power restoration, ensuring data integrity.

Key Features

• Four-Channel Sampling: Simultaneously collects up to four gases or parallel samples, each independently controlled.
• Precise Flow Control: Electronic flow meter ensures stable constant-flow sampling with automatic compensation for environmental variations.
• High-Performance Pump System: Imported diaphragm pump with corrosion resistance, low noise, long lifespan, and overload protection.
• Anti-Backflow Dryer: Prevents absorption liquid backflow, enhancing sampling safety.
• Real-Time Environmental Monitoring: Pressure and temperature monitored in real-time, with automatic flow compensation.
• Temperature Compensation: Automatic heating adjusts for ambient temperature changes, maintaining stable sampling conditions.
• Intelligent Display Interface: Chinese LCD screen with auto-adjusting contrast, user-friendly operation, and suitability for cold environments.
• Automatic Sampling Volume Calculation: Cumulative sampling volume automatically converted to standard conditions.
• Data Protection & Recovery: Automatically saves sampling status during power loss and resumes upon power restoration.
• Data Storage: Sampling data can be stored for subsequent analysis and record-keeping.

Applications

• Environmental Monitoring: Routine and emergency monitoring of gaseous pollutants such as SO₂ and NOₓ.
• Industrial Emission Testing: Sampling and analysis of fixed-source emissions.
• Indoor Air Quality Monitoring: Detects harmful indoor gases to ensure a safe and healthy environment.
• Emergency Monitoring: Rapid sampling during sudden pollution events, providing accurate data support.
• Research & Education: Supports data collection and analysis for environmental science research and laboratory teaching.