Tunnel emission monitoring analyser using Electrochemical Cell
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TunnelTech 400

Electrochemical CO, NO, NO2, SO2 & O2 Air Quality Monitor

The TunnelTech 400 analyser electrochemical cell technology determines CO, NO NO2, SO2 or O2 concentrations. With no moving parts, reliability levels are extremely high and maintenance requirements are very low.

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Overview

A road & rail tunnel monitor using well-proven technology to provide accurate and rapid results.


The TunnelTech 400 advanced electrochemical cell technology offers a cost-effective and flexible choice for a single cell analyser
delivering superb accuracy and reliability at a very competitive price.

 

The TunnelTech 400 analyser electrochemical cell technology determines CO, NO NO2, SO2 or O2 concentrations. With no moving parts, reliability levels are extremely high and maintenance requirements are very low.

Features & Benefits

  • Single species gas analyser.
  • Compact and durable stainless steel sensor.
  • Advanced electrochemical cell technology.
  • Fully configurable 4-20mA - Passive Output.
  • Easy installation with minimal wiring required.
  • Minimal maintenance requirements.
  • Easy to calibrate.
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Product Specification

Gas SpeciesSingle CO, NO, NO2, SO2 & O2
Measuring Unitsppm for CO, NO, NO2, SO2 & % for O2
Averaging Time0.5 to 30 Minutes
Measurement TechniqueElectrochemical Cell
Calibration Flowrate1L/m
ConstructionSS316L (Standard) Silver / Brushed Metal
ABS Plastic (Optional) Black Mat
OutputRS485
Analogue Outputs2 wires mA outputs (Passive) 4-20mA 500Ω load max, not isolated, fully configurable
4 wires mA outputs (Active/Passive) 4-20mA 500Ω load max, not isolated, fully configurable
DisplayMonochrome LCD Display & Keypad Membrane
Power Supply24V

Related Products

TunnelTech 801 - Air Flow Monitor
Road Tunnel emission monitor analyser
TunnelTech 201 - Luminance Monitor
Road Tunnel light monitor

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