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AIRFLOW

The AIRFLOW tunnel monitor uses proven ultrasound technology to measure the speed and direction of air movement within the tunnel environment. These measurements can be used as part of an air quality management system for ventilation control wihtin a tunnel or other confined space including traffic tunnels, rail tunnels, cable tunnels as well as mining applications.

FEATURES

  • Proven ultrasonic transit time measurement technology

  • Measurement independent of temperature, pressure and composition of the tunnel atmosphere

  • Pre-calibrated “Fit and Forget” sensor with fixed ultrasonic path length

  • Single and dual axis mode available

  • Intelligent analyser with optional TSCU operator interface

  • Choice of interface options enabling easy integration into tunnel control system

  • AIRFLOW-T model with integrated temperature sensor

 

BENEFITS

  • Designed specifically for in-situ monitoring in tunnels

  • Rugged design to withstand corrosive atmosphere and regular tunnel washing

  • Single point installation requiring no alignment and uninterrupted by traffic flow

  • No moving parts and low maintenance requirements

 

ILLIOS

The ILLIOS measures the level of illuminance within the tunnel bore to ensure interior illumination levels are being continuously maintained, in order to affect safe lighting conditions for drivers. Illuminance, or incident lighting, determines the amount of light that covers a specific surface or area within the tunnel.

FEATURES

  • Accurate measurement of illuminance within the tunnel bore

  • Silicon photo diode, Vλ filtered to provide a spectral response close to that of the average human eye

  • IP65 / NEMA 4X rated external enclosure

  • Operating temperature of -30 °C to +70 °C to ensure stable readings across all prevailing ambient temperature conditions

  • Self contained intelligent analyser for direct connection to host controller

  • Supplied complete with PC based utility software for set-up and control of the instrument

 

BENEFITS

  • Designed specifically for monitoring in tunnels

  • Rugged design to withstand corrosive atmospheres and regular tunnel washing

  • Simple installation and mounting

  • No moving parts and low maintenance requirements

  • Flexible integration options

 

LUMIOS MkIII

The LUMIOS MkIII measures the level of luminance, or brightness, created by natural light at the tunnel portals to ensure that the visual perception of drivers is maintained, both day and night, by avoiding sudden variations in lighting levels and potential “black hole effect” when entering and exiting a tunnel. The LUMIOS MkIII can also be used for the measurement of luminance within the tunnel.

FEATURES

  • Measurement of luminance, or brightness, created by natural light at the tunnel portals

  • CIE Approved measurement of L20

  • Variable viewing angle within a range of 10 to 40º (factory preset)

  • Silicon photo diode, Vλ filtered for spectral response close to that of the average human eye

  • Rugged 316 stainless steel construction with IP66 protection rating

  • Heated window and enclosure

  • Self-contained intelligent analyser for direct connection to host controller

  • Suitable for measurement of luminance within the tunnel

 

BENEFITS

  • Designed specifically for monitoring tunnel portals

  • Rugged design to withstand extremes of weather conditions

  • Simple installation and mounting

  • Optional wash-wipe facility to minimise maintenance requirements

  • Flexible integration options

 

VIPA-L

The VIPA-L Long Path Visibility Monitor makes a visible opacity measurement to determine the average visibility along the sight path of the instrument, within an ambient environment such as road, rail, meteorological or other industrial application. These measurements can be used as part of an air quality management system.

FEATURES

  • Designed for in-situ monitoring of ambient environments

  • Visibility measurement using the widely accepted single pass light transmission opacity technique, over a path length of up to 20m

  • User selected unit display options of Opacity (%), Extinction Coefficient (k), Meteorological Optical Range (MOR) or Transmission

  • Low detection limits for dust and particulate

  • Integrated temperature and humidity monitoring

  • Intelligent analyser with optional TSCU operator interface

 

BENEFITS

  • Rugged design to withstand ambient and atmospheric weather conditions

  • IP65 / NEMA 4X rated external enclosure supplied with quick release site tubes and integrated mounting brackets

  • Plug and socket cable connection enabling simple installation

  • No moving parts and low maintenance requirements

  • Choice of interface options enabling easy integration into any data monitoring or control system

 

ECOM

The ECOM tunnel monitor measures the concentration of carbon monoxide (CO) within an ambient environment such as road, rail, meteorological or other industrial application. These measurements can be used as part of an air quality management system for ventilation control and/or secondary smoke detection within a traffic tunnel or other confined space.

FEATURES

  • Designed for in-situ monitoring in tunnels or similar confined spaces

  • Proven electrochemical measurement of CO

  • High accuracy intelligent gas detector with pre-calibrated sensing modules

  • Sensitive at low gas concentrations with high range capability and excellent stability

  • Backlit LCD display providing clear sensor information and diagnostic data

  • Compatible with BS EN 50545-1:2011

 

BENEFITS

  • Cost effective fixed sensor solution

  • Rugged and reliable, with ingress protection to IP65

  • Easy to install, commission and operate with an excellent reliability record

  • Plug-in sensor modules for quick and simple replacement

 

ENOX

The ENOX tunnel monitor measures the concentration of nitrogen dioxide (NO2) within an ambient environment such as road, rail, meterological or other industrial application. These measurements can be used as part of an air quality management system for ventilation control within a traffic tunnel or other confined space.

FEATURES

  • Designed for in-situ monitoring in tunnels or similar confined spaces

  • Proven electrochemical measurement of (NO2)

  • High accuracy intelligent gas detector with pre-calibrated sensing modules

  • Sensitive at low gas concentrations with high range capability and excellent stability

  • Backlit LCD display providing clear sensor information and diagnostic data

  • Compatible with BS EN 50545-1:2011

 

BENEFITS

  • Cost effective fixed sensor solution

  • Rugged and reliable, with ingress protection to IP65

  • Easy to install, commission and operate with an excellent reliability record

  • Plug-in sensor modules for quick and simple replacement

 

VICONOX

The VICONOX tunnel monitor is a single sensor solution for measuring NO2, NO, CO, visibility and temperature within a traffic tunnel, rail tunnel or other confined space. These measurements can be used as part of an air quality management system for ventilation control and/or secondary smoke detection.

FEATURES

  • Direct in-situ measurement of NO2, NO, CO, Visibility and Temperature (or combinations thereof)

  • Direct optical measurement of nitrogen dioxide (NO2) using differential absorption

  • Visibility measurement using accepted light transmission opacity technique

  • Proven infrared spectroscopy technique for NO and CO measurement

  • Temperature and humidity compensated measurements to ensure stable readings across all conditions

  • Intelligent analyser with optional TSCU operator interface

 

BENEFITS

  • Rugged design to withstand corrosive atmospheres and regular tunnel washing

  • High quality 316 stainless steel construction ensuring a long service life

  • Pre-aligned quick release TX and RX heads enabling easier installation and maintenance

  • IP65 rated external enclosure with quick release dust protection tubes

  • Plug and socket cable connection enabling simple installation

 

Accessories

Tunnel Sensors range of tunnel monitors are supplemented with a variety of accessories designed to assist with installation, operation and maintenance and to ensure optimum performance and reliability.

TSCU Operator Interface

 

Tunnel Sensors range of tunnel monitors are supplemented with a variety of accessories designed to assist with installation, operation and maintenance and to ensure optimum performance and reliability.

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Calibration Checking

A range of of optical filters and reference gas cells to enable routine calibration checking of the TSL instruments.

Operational Accessories

Additional items such as ready-made power /comms / output cables; PSU and termination units plus associated installation accessories such as mounting brackets, extension sight tubes and weather covers.