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Tunnel Sensors
VICOTEC450

Extractive visibility measurement for increased safety in tunnels

Your Benefits

  • Very reliable operation due to full self-test
  • Cost-effective and fast commissioning (no optical alignment required on site)
  • Flexible electrical integration thanks to the easy connection of additional interfaces or I/O modules

Overview

Extractive visibility measurement for increased safety in tunnels

The VICOTEC450 provides an optimal solution for visibility measurement if

  • Fixtures in the tunnel tube are not permitted or not possible due to lack of space
  • Fog should not be included in the visibility measurement.

The VICOTEC450 draws air from inside the tunnel, heats it above the dew point, and determines the visibility with a high level of accuracy using scattered light technology. It regularly and automatically carries out a functional test including the function of the laser and receiver as well as the contamination of the optics. Maintenance requirements for cleaning and filter exchange are automatically registered and signaled in time by the VICOTEC450 due to contamination check and measurement of the air flow rate (optional).

At a glance
  • Regular functional test with contamination measurement
  • Linearity test can be carried out with filter set
  • Internal purge air for long intervals between cleaning
  • Maintenance signal (filter and cleaning)
  • Logbook function
  • Extendable with various interfaces or I/O modules (e. g., PROFIBUS, Ethernet, analog module, etc.)

spareparts

Applications

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.

  • VICOTEC450 system

    VICOTEC450 system

    Measured valuesVisibility (K-value)
    Measurement principlesScattered light forward
    Spectral range
    640 mm ... 660 mm
    Laser, protection class 2, power < 1 mW
    Gas flow rate
    30 l/min ... 35 l/min
    Measuring ranges
    K-value0 ... 15 km⁻¹ / 0 ... 5,000 km⁻¹
    Temperature–50 ... +250 °C
    Response time (t90)
    0 s ... 600 s
    Freely adjustable; without measuring delay due to suction line
    Accuracy
    Temperature± +2 °C
    Resolution
    Visibility (K-value)0.1 km⁻¹
    Repeatability
    Visibility (K-value)± 2 %: of measuring range full scale
    Ambient temperature
    –30 °C ... +55 °C
    Storage temperature
    –40 °C ... +60 °C
    Electrical safetyCE
    Enclosure rating
    IP66
    Dimensions (W x H x D)
    300 mm x 340 mm x 215 mm
    For details see dimensional drawings
    Weight
    12 kg
    Power supply
    Voltage90 ... 250 V
    Frequency50 Hz / 60 Hz
    Power consumption≤ 35 W
    Test functions

    Automatic self-test

    Contamination limits: at 30% warning, at 50% failure

    Manual linearity test with reference filter

    OptionsTemperature measurement
  • MCU control unit

    MCU control unit

    DescriptionUnit to control the system components and to evaluate and output the data provided by them
    Enclosure rating
    IP66
    Analog outputs1 output:
    0/2/4 ... 20 mA, 750 Ω
    Electrically isolated; additional outputs if using I/O modules (option)
    Analog inputs2 inputs:
    0 ... 20 mA
    Not electrically isolated; additional inputs if using I/O modules (option)
    Digital outputs5 relay contacts:
    + 48 V AC, 1 A
    Potential-free; for status signals; extendible by additional I/O modules
    Digital inputs4 potential-free contacts:
    Additional inputs if using I/O modules
    Modbus
    Type of fieldbus integrationTCP (Via optional interface module; only one module possible per MCU)
    RTU RS-485 (Via optional interface module; only one module possible per MCU)
    PROFIBUS DP
    Type of fieldbus integrationVia optional interface module; only one module possible per MCU
    Ethernet
    Type of fieldbus integrationVia optional interface module; only one module possible per MCU
    FunctionConnection to SOPAS ET software or OPC server
    Serial
    Type of fieldbus integrationRS-485 (Via optional interface module; only one module possible per MCU)
    FunctionConnection to SOPAS ET software
    USB
    FunctionConnection to SOPAS ET software
    Indication
    LC display
    Status LEDs: "Power", "Maintenance" and "Failure"
    OperationVia LC-display or software SOPAS ET
    Dimensions (W x H x D)
    210 mm x 340 mm x 125 mm
    Weight
    ≤ 5 kg
    Power supply
    Voltage90 ... 250 V AC
    Frequency50 Hz / 60 Hz
    Power consumption≤ 50 W
    Options

    Interface module(s)

    I/O module(s)

All technical data can be found accompanying the individual product

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