Worldwide Support
Over 25 distributors and support centres worldwide

Flexible maintenance contracts
Tailor made plant specific contracts with 24Hr Support

30 years experience
Developing, manufacturing and installing

CODEL_tunnel_emission_monitoring_s1

TunnelTech 305

Air Flow Monitor

The TunnelTech 305 Air Flow Monitor (AFM) is CODEL's industry proven tunnel air flow monitor.

Overview

The TunnelTech 305 Air Flow Monitor, is an essential part of any road or rail tunnel safety system. Firstly, it monitors the air flow measurement as well as the direction of flow inside the tunnel and ensures that the tunnel ventilation system provides sufficient clean air to protect tunnel users health and for drivers to clearly see the road ahead.

 

The TunnelTech 305 uses dual path ultrasonic technology to ensure high accuracy and having no moving parts, reliability levels are very high and maintenance requirements are very low. The sensor is constructed using stainless steel for ultimate protection against the harsh environments found in tunnels.

 

Fully configurable analogue and alarm outputs are provided. An RS485 link can be utilised to deliver via MODBUS protocol to a SCADA system located in the tunnel control centre.

Features & Benefits

Related Products

TunnelTech 700 - Gas Monitor
TunnelTech 205 - N02 Monitor

Brochure Download





    Looking for a manual?

    Please contact us below and we will be happy to help you.

    Ask a question

    For further information on any of our products, please complete our enquiry form and a member of staff will respond as soon as possible.

    You can also call: +44(0)1629 814351





      TunnelTech 305 Specification

      MeasurementsAir flow and direction
      Measuring Unitsm/sec
      Measurement TechniqueUltrasonic
      Ambient Temperature-20°C to +65°C
      Power Supply12V DC @1.5A
      ConstructionSS316L / Ti – Designed to IP67 (IP69K Optional)
      Analogue Outputs2 x 4-20mA current outputs as standard, isolated, 500Ω maximum load, fully configurable
      through TunnelTech software
      Relay Outputs2 x volt-free SP contacts, 50V 400mA max, for flow direction and fault condition
      Communications PortRS485 for local communication with laptop or modbus RTU protocol

      For a full product specification please download the product brochure below.