Our Brand - Tunnel Sensors

Enhancing air monitoring capabilities

Acoem Tunnel Sensors is a premier specialist in designing and manufacturing state-of-the-art instrumentation for monitoring tunnel atmospheres. Their mission is to provide innovative systems that empower operators to manage tunnels cost-effectively while safeguarding users from the harmful and irritating effects of traffic pollution.

Based in Oxfordshire, UK, Acoem Tunnel Sensors designs, assembles, and tests all products on-site. Our in-house team is responsible for every step, from design inception to the final product, drawing on our expertise in assembly, software development, and R&D. As an electronic engineering-focused company, Acoem Tunnel Sensors excel in R&D and offer customised solutions to meet specific customer requirements and holds ISO 9001:2015 accreditation, ensuring high standards across manufacturing, supply, and service.

The Importance of Monitoring Toxic Gases in Road Tunnels

Monitoring toxic gases and emissions in road tunnels is crucial for ensuring safety due to the accumulation of harmful substances like Nitrogen Dioxide (NO₂), Nitrogen Monoxide (NO), and Carbon Monoxide (CO). Despite advances in vehicle emission technology, these gases pose significant health risks, including respiratory issues and potential fatalities. Effective ventilation systems and precise monitoring tools, such as Acoem’s VICONOX, are essential for maintaining safe air quality in tunnels. Continuous monitoring allows for real-time adjustments in ventilation, ensuring that toxic gas levels remain within safe limits and protecting both drivers and maintenance workers from exposure.

The presence of these gases can lead to severe respiratory issues and other health problems. Therefore, the integration of advanced tunnel sensors and monitoring systems is crucial. Acoem Tunnel Sensors’ systems continuously measure the concentration of toxic gases and adjust the ventilation accordingly, ensuring a safe environment. By implementing these technologies, tunnel operators can significantly reduce the risk of toxic gas exposure, safeguarding public health and improving overall tunnel safety.

 

 

 

 

Advanced Monitoring Technologies

Acoem Tunnel Sensors’ monitoring systems are designed to provide a complete and integrated approach to tunnel safety and operational efficiency. By combining various advanced technologies, we ensure that every aspect of the tunnel environment is continuously monitored and controlled. Our solutions cover a broad spectrum of needs, including gas monitoring, pollution monitoring, and visibility monitoring, ensuring that all critical factors are kept within safe and optimal ranges. These systems provide real-time data on air quality, visibility, and luminance, ensuring that tunnel environments remain safe for all users.

VICONOX – A comprehensive solution for monitoring gases and visibility in tunnels, ensuring compliance with safety standards.

The VICONOX tunnel atmosphere monitor is an all-in-one sensor designed to measure NO₂, NO (NOx), CO, visibility, and temperature (or various combinations thereof) within road traffic tunnels, rail tunnels, or other confined spaces. These measurements are integral to air quality management systems, supporting ventilation control and secondary smoke detection.

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AIRFLOW Monitors tunnel ventilation systems, providing crucial data on air movement and quality.

The AIRFLOW MkII uses proven ultrasound time-of-flight technology to deliver consistent and accurate measurements. It is ideal for air quality management in tunnels, rail and cable tunnels, and mining applications. With no moving parts and no regular maintenance required, it is a reliable, “fit and forget” monitor. It features industry-standard SCADA/PLC interfaces, including Current Outputs, Digital Relays, and RS485 (Modbus RTU), making it a self-contained, intelligent tunnel airflow monitor.

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CROSSFLOW – An advanced system for measuring tunnel airflow, enhancing the efficiency of ventilation systems.

The CROSSFLOW is an airflow monitor for measuring speed and direction in multi-lane and bidirectional tunnels. It uses ultrasonic transit time measurements between transceivers on either side of the tunnel. The system offers SCADA/PLC interface options, including Current Outputs, Digital Relays, and RS485 (Modbus RTU). Its wall-mounted alignment bracket and quick lock cable plugs ensure easy installation. With no moving parts, it requires only an annual check and clean for maintenance.

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LUMIOS – A cutting-edge product for visibility monitoring and tunnel lighting control system, improving safety and operational efficiency.

The LUMIOS-MkIII measures the brightness of natural light around tunnel portals, ensuring consistent visual perception for drivers day and night, preventing sudden lighting changes. It integrates with tunnel lighting systems and offers SCADA/PLC interfaces, including Current Outputs, Digital Relays, and RS485 (Modbus RTU). The viewing angle ranges from 10° to 40°, with optional wipers and washers for harsh environments. It supports both AC and DC power supplies.

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Comprehensive Road Tunnel Monitoring Solutions

Acoem Tunnel Sensors design, manufacture, commission, and maintain comprehensive road tunnel monitoring systems. Our instruments interface with tunnel ventilation systems, automatically activating critical jet fans in response to changes in internal atmospheric conditions.

Tunnel visibility monitors

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Tunnel airflow monitors

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Tunnel gas monitors

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Tunnel luminance monitors

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Tunnel illuminance monitors

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Tunnel monitors accessories

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