Viconox

Combined CO, NO, NO² and Visibility Monitorfor Tunnels

The VICONOX tunnel atmosphere monitor is a single sensor solution for measuring toxic gases, visibility and temperature within harsh tunnel environments.

Features

In-situ measurement

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

NO2 measurement

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

Visibility measurement

Visibility measurement using an accepted light transmission opacity technique

Infrared spectroscopy

Proven infrared spectroscopy technique for NO and CO measurement

Installation

Quick lock plug and socket cable connection enabling simple installation

Outputs

RS485 communication (Modbus RTU), Digital Relays and Analogue outputs

Extended warranty

Optional extended warranty and 5 year refurbishment programs are available

See our technology in action.

Schedule a free demo to get a first-hand look at how our solutions support your business.

Schedule a free demo

Resources

Viconox
Brochure

Viconox
Data Sheet

Tunnel atmosphere monitor

The VICONOX tunnel atmosphere monitor is a single sensor solution for measuring NO2, NO, (NOx), CO, visibility and temperature (or combinations of) within a road 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.

Benefits

Pre-aligned quick release TX and RX heads enabling easy installation and maintenance
Up to 6 measurement parameters in one unit minimises capital cost but also minimises the requirements for cabling, installation and commissioning
Temperature and humidity compensated measurements to ensure stable readings across all conditions
Rugged design to withstand corrosive atmospheres and regular tunnel washing
High quality 316 stainless steel construction ensuring a long service life
IP67 rated external enclosure with quick release dust protection tubes

VICONOX calibration kit

Tunnel Sensors offer six variants of the VICONOX tunnel air quality monitor. All VICONOX AQMs measure visibility along with a combination of gases including CO, NO, NO2 and NOx. To complement the monitors, six calibration / audit kits are now available to purchase for the specific variant of VICONOX installed.

All six kits comprise of three calibrated opacity filters to confirm the accuracy of the visibility readings. We also offer sealed gas check cells for both CO and NO and a filter to check NO2 readings. All kits are issued with calibration certificates to confirm performance and expected measured values.

The filters and gas check cells are supplied in a robust case with precision cut foam inserts to keep your calibrations tools safe when not in use. There’s also a documentation area to store instructions and calibration certificates.

The kit is suitable for tunnel operators who maintain their own instrumentation and service and maintenance contractors that support tunnel sensors equipment.

Discover the Viconox calibration kit

Harsh tunnel environments

The VICONOX has been designed for harsh tunnel environments with a high quality, IP67 rated stainless steel enclosure. Wall mounted alignment bracketry, quick release heads and quick lock cable connections make installation and future servicing easy and simple. The VICONOX’s intelligent heads have RS485 (Modbus RTU), Digital Relays and Analogue Outputs as standard for connection to a PLC / SCADA system.

Applications

Discover Acoem’s case studies

Our case studies

Monitoring for the environment & preserving history casestudy

Ambient Air Fence Line Application casestudy

The VICONOX tunnel atmosphere monitor

The VICONOX tunnel monitor is a single sensor solution for measuring NO2, NO, (NOX), CO, visibility and temperature within a traffic tunnel, rail tunnel or other confined space.

Request pricing