Overview
The TunnelTech 500 Air Quality Monitor, 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 and for drivers to clearly see the road ahead.
The TunnelTech 500 analyser electrochemical cell technology to determine CO, NO & NO2 concentrations.
As there are no moving parts, reliability levels are very high and maintenance requirements are low.
Features & Benefits
- Measure CO, NO & NO2 in one compact sensor.
- Advanced electrochemical cell technology.
- Integrated display and keypad, no external computer required.
- Class leading NO2 measurement.
- Minimal maintenance requirements.
- Easy to calibrate.
Product Specification
| Gas Species | Visibility (standard), CO, NO, NO2 & SO2 (optional) |
| Measuring Units | m-1 (K factor) / E/m for visibility, ppm for CO, NO, NO2, SO2. |
| Calibration | Factory calibrated, manual span check. |
| Measurement Technique | Electrochemical Cell, Backscatter for Visibility |
| Measurement range (typical) | CO : 0 – 300ppm , NO : 0 – 30ppm , NO2 : 0 – 5ppm, SO2: 0 to 20 ppm, Vis: 0 – 0.015 m-1 |
| Construction | Corrosion resistant epoxy coated SS316L Designed to IP69K |
| Serial Data | Bi-directional RS485 Modbus RTU Protocol |
| Display | Monochrome LCD Display & Keypad Membrane |
| Power Supply | 24V DC |
Related Products
TunnelTech 801 - Air Flow Monitor
TunnelTech 201 - Luminance Monitor
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