{"id":1006,"date":"2024-11-25T13:18:37","date_gmt":"2024-11-25T05:18:37","guid":{"rendered":"http:\/\/47.251.61.166\/?post_type=product&p=1006"},"modified":"2026-03-19T16:25:16","modified_gmt":"2026-03-19T08:25:16","slug":"dual-channel-voc-sampler","status":"publish","type":"product","link":"https:\/\/www.woboequip.com\/zh\/product\/dual-channel-voc-sampler","title":{"rendered":"Dual-Channel VOC Sampler"},"content":{"rendered":"

Product Overview<\/b><\/strong><\/h3>\n

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.<\/p>\n

Working Principle<\/b><\/strong><\/h3>\n

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.<\/p>\n

Key Features<\/b><\/strong><\/h3>\n
    \n
  • High Negative Pressure Capability<\/strong>: Imported brushless diaphragm pump delivers up to 20\u202fkPa, easily handling high-resistance gas streams.<\/li>\n
  • Precise Digital Constant-Flow Control<\/strong>: High-precision electronic flow meter and algorithm maintain stable sampling flow.<\/li>\n
  • Extended Battery Life<\/strong>: High-performance lithium battery supports continuous operation for over 20 hours.<\/li>\n
  • Automatic Heating<\/strong>: Temperature-controlled heating prevents sample freezing under low ambient temperatures, ensuring stable collection.<\/li>\n
  • Data Protection & Recovery<\/strong>: Automatic data saving during power loss; sampling resumes upon power restoration.<\/li>\n
  • Convenient Data Export & Printing<\/strong>: Supports USB data export and Bluetooth printing for on-site management and analysis.<\/li>\n<\/ul>\n

     <\/p>\n

    Applications<\/b><\/strong><\/h3>\n
      \n
    • Environmental Air Monitoring<\/strong>: VOC collection and analysis from ambient air to ensure compliance with air quality standards.<\/li>\n
    • Fixed Pollution Source Monitoring<\/strong>: Industrial exhaust VOC detection, supporting emission control and pollution management.<\/li>\n
    • Industrial Emission Monitoring<\/strong>: Sampling of toxic and hazardous gases in chemical, pharmaceutical, and petroleum industries.<\/li>\n
    • Occupational Safety & Supervision<\/strong>: Workplace air quality monitoring to prevent exposure to harmful VOCs and protect employee health.<\/li>\n
    • Research & Education<\/strong>: Provides high-precision VOC sampling data for environmental science studies and laboratory teaching.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"[tp_attributes num_attributes=\"2\"]\n

      The Dual\u2011Channel VOC Sampler is a precision instrument designed for simultaneous collection of volatile organic compounds (VOCs) across two independent channels. Featuring constant\u2011flow technology and advanced microprocessor control, it ensures stable sampling rates and accurate results even under varying environmental conditions. The dual\u2011channel design allows parallel sampling of different VOCs, improving efficiency and reliability in environmental monitoring, occupational health studies, and industrial hygiene assessments. Compact, durable, and user\u2011friendly, this sampler is widely applied in regulatory compliance testing, laboratory analysis, and field investigations.<\/p>\n

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