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Tunnel Sensors
VISIC100SF

Modernizes measurement performance for tunnel air quality

Your Benefits

  • One sensor for three measuring components
  • High levels of reliability and operational safety
  • No need for protective measures during tunnel cleaning
  • Immune to gantry fog
  • Flexible connection options, easy to extend and integrate into existing networks
  • Visibility measurement can be easily verified with a checking tool
  • Low level of effort due to simple mounting and quick commissioning

Overview

Modernizes measurement performance for tunnel air quality

The VISIC100SF tunnel sensor is an all-in-one solution for measuring visibility, CO, NO, and NO2 concentrations. It is exceptional solution that combines the scattered light measurement principle with electrochemical sensors – all in one compact housing. The VISIC100SF is easy to mount, operate, and maintain. There is no need for alignment or parameter setting – measuring starts right away. With its IP6K9K enclosure rating, not only is the VISIC100SF able to withstand the harsh ambient conditions inside the tunnel, it can also endure tunnel washing operations without any problems. During the design phase, particular importance was placed on ensuring reliable operation and long maintenance intervals. That is why there are no moving parts. To compensate for fog, there is an optional version available with heating. The VISIC100SF is a solution that meets desired requirements and is ideal for any tunnel application.

At a glance
  • Visibility (K value) measured according to the scattered light measurement principle
  • CO and NO concentration measured using electrochemical sensors in accordance with EN 50545
  • Software developed in accordance with EN 61508 (SIL1)
  • Highly reliable – no moving parts
  • Combines visibility measurement with two different gas measurements
  • IP 6K9K enclosure rating thanks to a rugged stainless-steel housing
  • Fog compensation through integrated heating (option)

Accessories

Applications

Service & Support

Service & Support

Technical overview

 

Please note: The exact device specifications and performance data of the product may deviate from the information provided here, and depend on the application in which the product is being used and the relevant customer specifications.

  • VISIC100SF system

    VISIC100SF system

    Measured valuesVisibility (K-value), CO, NO, NO2
    Measurement principlesScattered light forward, electrochemical cell
    Measuring ranges
    Visibility (K-value)0 ... 15 km⁻¹
    CO0 ... 300 ppm
    NO0 ... 100 ppm
    NO20 ... 5 ppm
    Response time (t90)
    ≤ 60 s
    Accuracy
    CO (0 ... 200 ppm)≤ 1 ppm
    For 0 ... 30 ppm
    CO (0 ... 200 ppm)≤ 1 %
    Of measuring range full scale (according EN 50545). For 30 ... 100 ppm
    CO (0 ... 200 ppm)≤ 2 %
    Of measuring range full scale (according EN 50545). For 100 ... 200 ppm
    CO (0 ... 300 ppm)≤ 1 ppm
    For 0 ... 30 ppm
    CO (0 ... 300 ppm)≤ 1 %
    Of measuring range full scale (according EN 50545). For 30 ... 150 ppm
    CO (0 ... 300 ppm)≤ 2 %
    Of measuring range full scale (according EN 50545). For 150 ... 300 ppm
    NO≤ 3 %
    Of measuring range full scale (according EN 50545)
    NO2≤ 2 %
    Of measuring range full scale (according EN 50545)
    Resolution
    Visibility (K-value)+ 0.001 km⁻¹
    CO+ 0.5 ppm
    NO+ 0.5 ppm
    NO2+ 0.05 ppm
    Repeatability
    Visibility (K-value)≤ 2 %
    Ambient temperature
    –20 °C ... +55 °C
    Storage temperature
    Measuring device without electrochemical cells–30 °C ... +85 °C
    CO, NO and NO2 sensor+5 °C ... +20 °C
    Ambient pressure
    860 hPa ... 1,080 hPa
    Ambient humidity
    10 % ... 100 %
    Relative humidity, non-condensing
    Conformities

    ASTRA "Guideline - Ventilation of Road Tunnels" (2008)

    RABT 2006

    RVS 09.02.22

    Considered standards

    EN 50545

    EN 61508 (SIL 1)

    Electrical safetyCE
    Test functions

    Contamination monitoring of glass pane

    Drift and plausibility check

    Automatic self-test

    Functional monitoring of the optional heating

    Options

    CO sensor

    NO sensor

    NO2 sensor

    Internal heating

    TAD control unit

    Connection unit

  • VISIC100SF sensor unit

    VISIC100SF sensor unit

    DescriptionAnalyzer unit of the measuring system
    Enclosure rating
    IP6K9K
    Analog outputs3 outputs:
    4 ... 20 mA, 500 Ω
    Electrically isolated, short-circuit proof
    Digital outputs2 relay contacts:
    + 48 V DC, 0.5 A, 24 W
    Preset for failure and maintenance request
    Modbus
    RemarkNot available when a TAD is used
    Type of fieldbus integrationRTU RS-485
    PROFIBUS DP
    RemarkOption
    Indication
    LC display, inside
    Status LEDs: “Operational”, “Maintenance required”, and “Fault”
    InputFunctional keys
    OperationVia LC-display and function keys
    Dimensions (W x H x D)
    266 mm x 159 mm x 117 mm
    For details see dimensional drawings
    Weight
    ≤ 2.8 kg
    MaterialStainless steel 1.4571
    MountingWall-mounting, vertical, up to a wall inclination of 45°
    Power supply
    Voltage18 ... 28 V DC
    Other voltages with optional connecting unit or TAD control unit
    Current consumption≤ 1 A
    Power consumptionWithout heating: ≤ 5 W
    With heating: ≤ 20 W
  • TAD control unit

    TAD control unit

    DescriptionUnit for displaying data, for operation and for connecting data cables
    Enclosure rating
    IP66
    Analog outputs4 outputs (option):
    4 ... 20 mA, 500 Ω
    Electrically isolated
    Digital outputs3 outputs (option):
    125 V AC, 0.6 A / 30 V DC, 2 A
    Digital inputs1 input (option):
    30 V DC
    Indication
    LC display and status LEDs
    InputFunctional keys
    Dimensions (W x H x D)
    210 mm x 347 mm x 129 mm
    For details see dimensional drawings
    Weight
    5 kg
    MaterialStainless steel 1.4571
    Power supply
    Voltage88 ... 264 V AC
    Frequency47 ... 63 Hz
    Power consumption≤ 15 W
  • VISIC100SF connector unit

    VISIC100SF connector unit

    DescriptionServes for connection of power supply, data and signal cabling provided by the customer
    Enclosure rating
    IP6K9K
    Dimensions (W x H x D)
    266 mm x 238 mm x 146 mm
    For details see dimensional drawings
    Weight
    ≤ 2.8 kg
    MaterialStainless steel 1.4571
    Power supply
    Voltage85 ... 264 V AC
    Frequency45 ... 65 Hz
    Current consumption≤ 0.1 A
All technical data can be found accompanying the individual product

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