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Intelligent road sensor IRS21 Miscellaneous

Special features:

  • Interchangeable sensor/electronics
  • Polling via RS485-interface
  • Low energy consumption (solar operation)
  • Radar procedure to measure water film
Description:

With 100m cable

Supplementary description:

The IRS21 passive road sensor is built into the road, flush with the surface. The two-part housing design enables the combined sensor/electronics unit to be exchanged for maintenance or calibration purposes in a matter of minutes. The following measurements are taken: - Road surface temperature and 2 further below-ground temperatures (5 cm/30 cm) - Water film level up to 4 mm - Freezing temperature for NACL (others on enquiry) - Road condition (dry/damp/wet/ice or snow/residual salt/freezing) The sensors can be addressed and therefore networked. The measurement data is digitally transmitted via RS485-interface for further processing (logger, PLC etc.).

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Ref.no.:8410.102
Price:On request
Quantity ordered:
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Technical data
Dimensions Ø 120mm, height 50mm
Detectable road conditions Dry/damp/wet/ice or snow/residual salt content/freezing wetness
Weight Approx. 900g
Storage temperature -30...70°C
Rated current <200mA
Interface RS485, baud rate: 2,400...38,400 bit/s (default: 19,200)
cable length : 100m
Protection type IP68
Power supply 9...14VDC, nominal 12V
Connector CAGE CLAMP, WAGO
(cross-section <0.5mm²)
Operating temperature -30...70°C
Operating rel. humidity 0...100% RH
Road dampness
Unit Dry/damp/wet
Slippery road conditions
Unit No ice/snow, snow, freezing rain, ice
Temperature
Principle NTC
Measuring range -30 .. 70 °C
Unit °C
Accuracy ±0.2°C (-10...10°C), or ±0.5°
Resolution 0.1
Freezing point
Measuring range -20 .. 0 °C
Unit °C
Accuracy ±1°C (t>-10°C)
Resolution 0.1
Water film height
Principle Radar
Measuring range 0 .. 4 mm
Unit mm
Accuracy ±(0.1mm + 20% of measurement)
Resolution 0.01 mm
Below-ground temperature (at 2 different depths)
Principle NTC
Measuring range -30 .. 70 °C
Unit °C
Accuracy ±0.2°C (-10...10°C), or ±0.5°
Resolution 0.1 °C

Accessories

Product nameProduct group  Ref.no.  Info 
  Isolated interface converter RS485-RS232  Accessories  8410.KON2 
  Interface converter IRS21CON  Accessories  8410.UISO 
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