Tunnel Atmosphere Monitoring www.codel.co.uk Doc i/d : 100029 Issue : A Rev : 1 Date : 17/11/2010 © 2010 CODEL International Ltd. We reserve the right to modify designs without prior notice CODEL Product Data Sheet Tunnel Atmosphere Monitoring TunnelCraft 3 - Air Flow Monitor Windspeed & Direction Low-cost Precision Tunnel Sensors Single point ultrasonic measurement technology, uninterupted by traffic flow and sound reflections No moving components providing maintenance free operation Designed to withstand the harshest of tunnel environments. Measurement precision of +/-0.2m/sec

The TunnelCraft 3 Air Flow Monitor (AFM) is CODEL’s industry proven tunnel air flow monitor. Tunnel ventilation systems are designed to enable a sufficient throughput of air to be maintained to ensure a safe operating environment. These systems consume large amounts of power and need to be operated as efficiently as possible. To do this it is necessary to know the effectiveness of the system in terms of air flow and direction developed in the tunnel. Three decades of development, knowledge and practical experience have been utilised to produce this advanced technology tunnel sensor that combines...

TunnelCraft 3 - Air Flow Monitor - System Arrangement Tunnel Atmosphere Monitoring www.codel.co.uk Doc i/d : 100029 Issue : A Rev : 1 Date : 17/11/2010 © 2010 CODEL International Ltd. We reserve the right to modify designs without prior notice RS232/485 Communications Unit* mA Outputs Relay Outputs CODEL TunnelCraft 3 Software* *RS232/485 Communications Unit and TunnelCraft 3 Software are required for commisioning and maintenance use. 12V Power Supply (PSU) (Optional) Mains power in Temporary commissioning equipment Air Flow Monitor (AFM)

TunnelCraft 3 Software Tunnel Atmosphere Monitoring www.codel.co.uk Doc i/d : 100029 Issue : A Rev : 1 Date :17/11/2010 © 2010 CODEL International Ltd. We reserve the right to modify designs without prior notice Easy installation and set-up Will operate on any Windows based operating system Allows sensor’s configuration settings to be adjusted Fault diagnostic logging for sensor troubleshooting TunnelCraft 3 Software is supplied with all CODEL Tunnel Sensor’s as standard for the purpose of commissioning and maintenance of the sensors. With simple installation and set-up routine to any Windows...

Tunnel Atmosphere Monitoring www.codel.co.uk Doc i/d : 100029 Issue : A Rev : 1 Date : 17/11/2010 © 2010 CODEL International Ltd. We reserve the right to modify designs without prior notice Overall Dimensions - TunnelCraft 3 - Air Flow Monitor Note: All dimensions are in mm 230 Air Flow Monitor (AFM (wt 8.5kg) Note: All dimensions are in mm 200 320 Overall Dimensions - Power Supply Unit & Tunnel Display Unit (Optional) 200 110 230 160 110 160 Power Supply Unit (PSU) (wt 4kg) Tunnel Display Unit (TDU) (wt 2kg) 110

TunnelCraft 3 Air Quality Monitor - Technical Specification Sensor Unit Compliances Communications & Outputs Ser vices Measurements Windspeed and direction Units m/sec Measurement Technique Ultrasonic Measurement range (typical*) -20 to +20m/sec Accuracy +/- 0.2m/sec Averaging Time 10 Sec to 60min Ambient Temperature -20°C to +50°C Power supply 12V DC, 20 VA from seperate power supply Construction Corrosion resistant epoxy coated aluminium housing sealed to IP67 EMC EN61326-1:2006 & EN50270:2006 directive compliant Low Voltage 73/23/EEC directive compliant Analogue outputs 2 x 4-20mA current...