LUFFT VS2k-UMB – Visibility Sensor

The VS2k visibility sensor measures visibility up to 2000m, ideal for road traffic applications on motorways, highways or bridges. A calibration device is available (optional).
The VS2k-UMB is configured via the software UMB Config Tool which allows:

  • Reading / Changing of the current configuration
  • Configurations to be loaded and stored.
  • Calibration
  • Polling of the current measurement values.

The measurement data is available for further processing in the form of the standard protocol Lufft UMB.

ASD = Active Spider Defense: The built-in vibrating motor ensures at irregular intervals that the VS2k visibility sensor is not so prone to spiders. The construction of VS2k also reduces the frequency of maintenance.

Parameters measured: Visibility (measuring range 10 … 2000 m, resolution 1 m)
Measurement technology: 45° forward light scattering
Product highlights: suitable for extreme ambient conditions, active spider defence, seawater resistant, compatible interfaces
Interfaces: RS-485, analogue output

Download Specifications

Brand

Tunnel & Roads Transport

Technical Data

General
Dimensions 500x230x80mm
Weight Approx. 4kg
Protection type IP66
Interfaces RS485 (2-wire, half duplex); Analogue output (4 – 20mA)
Value update 1/minute
Included in delivery Connection cable
Cable length 10m
Storage conditions
Admissible storage temperature -40…70°C
Operating rel. humidity 0…100% RH (non condensing), 0 … 98% (inside packaging)
Operating conditions
Operating temperature -40…60°C
Operating rel. humidity 0…100% RH
Power supply 20…30VDC; typical 24VDC
Power consumption < 200mA (motor running and current outputs active), about 100mA in normal mode and RS485 output
Power consumption 3W (typical), 10W (max.)
Protection class III (SELV)
Visibility
Principle 45° forward scattering
Measuring range 10 … 2000 m
Measuring resolution 1 m
Unit m
Accuracy ±10% visibility

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