The TunnelTech 501 CO sensor, is an essential part of any road or rail tunnel safety system. Firstly, it monitors the atmosphere within the tunnel and ensures that the tunnel ventilation system provides sufficient clean air to protect tunnel users health.

Carbon monoxide (CO) is a colourless, odourless toxic gas produced by incomplete combustion of vehicle fuels. Carbon monoxide is dangerous because it inhibits the blood’s ability to carry oxygen to vital organs such as the heart and brain.

Key Features

  • Electro-chemical cell sensor for Carbon Monoxide monitoring
  • Long life electro-chemical cell with minimal maintenance requirements
  • Outputs – Analogue 4-20mA output, RS 485 serial output
  • TUV certified for SIL 2 applications (IEC 61508 and EN 50402)
  • Four digit LED display for current gas concentration
  • Stainless steel enclosure to IP65

ecem

Feature

Specification

Measurements Carbon Monoxide (CO)
Measuring units parts per million (ppm)
Measurement Range 1-500 ppm
Ambient Temperature -20°C to +50°C
Power supply 12 – 24VDC
Construction IP65
Analogue outputs 1 off 4-20mA
Relay Outputs 3 off relays, 24V – 1A
Communication Ports RS485 MODBUS output

Lang Filetype Document Size
English Adobe_Acrobat_Pro_PDF TunnelTech 501 Datasheet 400kb

Download will be instantly be availble after form submission.

Send TunnelTech 501 Product Enquiry

 Please call to discuss our requirements

Related Tunnel Analysers

TunnelTech 202 - CO & Visibility Monitor
The TunnelTech 202 Air Quality Monitor continuously monitors CO & visibility and is an essential part of any road or rail tunnel safety system
View Product
TunnelTech 202 - CO & Visibility Monitor
The TunnelTech 202 Air Quality Monitor continuously monitors CO & visibility and is an essential part of any road or rail tunnel safety system
View Product