Dual-Channel VOC Sampler

Product Overview

The Dual-Channel VOC Sampler is designed for efficient collection of volatile organic compounds (VOCs) from ambient air and industrial emissions. It can capture a wide range of VOCs, including benzene series, aldehydes and ketones, and halogenated hydrocarbons. The sampler can be integrated with a gas pre-treatment system for industrial exhaust and environmental VOC monitoring. It is widely applicable across environmental monitoring, public health, occupational safety, supervision, research, and educational settings, supporting both indoor/outdoor air quality monitoring and industrial emission control.

Working Principle

The sampler uses adsorption tube sampling and other solid-phase adsorption techniques. An imported brushless diaphragm pump provides stable negative pressure to direct air or exhaust gas into adsorption tubes for VOC concentration collection. High-precision electronic flow meters combined with constant-flow control algorithms enable accurate low-flow sampling. An optional automatic heating system prevents sample condensation or freezing in low-temperature conditions. Data logging and export functions ensure sampling data integrity and traceability.

Key Features

• High Negative Pressure Capability: Imported brushless diaphragm pump delivers up to 20 kPa, easily handling high-resistance gas streams.
• Precise Digital Constant-Flow Control: High-precision electronic flow meter and algorithm maintain stable sampling flow.
• Extended Battery Life: High-performance lithium battery supports continuous operation for over 20 hours.
• Automatic Heating: Temperature-controlled heating prevents sample freezing under low ambient temperatures, ensuring stable collection.
• Data Protection & Recovery: Automatic data saving during power loss; sampling resumes upon power restoration.
• Convenient Data Export & Printing: Supports USB data export and Bluetooth printing for on-site management and analysis.

Applications

• Environmental Air Monitoring: VOC collection and analysis from ambient air to ensure compliance with air quality standards.
• Fixed Pollution Source Monitoring: Industrial exhaust VOC detection, supporting emission control and pollution management.
• Industrial Emission Monitoring: Sampling of toxic and hazardous gases in chemical, pharmaceutical, and petroleum industries.
• Occupational Safety & Supervision: Workplace air quality monitoring to prevent exposure to harmful VOCs and protect employee health.
• Research & Education: Provides high-precision VOC sampling data for environmental science studies and laboratory teaching.