Intelligent Passive Road Sensor IRS31Pro
Company | OTT HydroMet |
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Product code | 8910.U050, 8910.U051, 8910.U052, 8910.U100, 8910.U101, 8910.U102 |
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The passive road sensor IRS31Pro-UMB convinces by its two part housing design and accurate detection of road surface temperature, water film height, freezing temperature, ice percentage and many more…
The passive road sensor IRS31Pro-UMB is flush-mounted in the road. The two-part housing design allows the combined sensor/electronics unit to be removed for maintenance or calibration at any time. The following variables are recorded: Road surface temperature, water film height up to 4 mm, freezing temperature for different de-icing materials (NaCl, MgCl, CaCl), road condition (dry/damp/wet/ice or snow, damp with salt, wet with salt), friction (Grip), ice percentage. Optional: 2 additional depth temperatures, e.g. at 5 cm and 30 cm. The measurement data is available for further processing in the form of a standard protocol (Lufft UMB protocol).
- Measurement of Road surface temperature, water film height up to 4mm, freezing temperature for different de-icing materials (NaCl, MgCl, CaCl), road condition (dry/damp/wet/ice or snow/moist with salt/wet with salt), friction, ice Percentage, 2 additional depth sensors
- Two-part housing design allows easy maintenance/re-calibration
- Low energy consumption allows solar operation
- Radar principle to measure water film heights
- Interfaces: RS485, SDI-12, analogue outputs
- Freezing temperature output already from pre-set dry-damp threshold (e.g. 10µm according to new TLS specification).
- Replaceable sensor electronics (for easy calibration or maintenance)
- Polling via RS485 interface
- Low energy consumption (solar operation)
- Radar principle to measure water film
- Analogue outputs in combination with a converter (DACON – 8160.UDAC)
General | |
Dimensions | Ø 120mm, height 50mm |
Detectable road conditions | Dry/moist/wet/moist with salt/wet with salt/ice |
Weight | Approx. 800 g without cable and without external temperature probe |
Storage temperature | -40…70°C (in packaging) |
Rated current | <200mA |
Interface | RS485, Baud rate: 2400 … 38400 bit/s (Standard: 19200) or SDI-12 |
Protection type | IP68 |
Power supply | 9…14VDC, nominal 12V |
Connector | Cable 0.5mm² |
Operating temperature | -40…80°C |
Operating rel. humidity | 0…100% RH |
Road dampness | Unit: dry/damp/wet/damp with salt/wet with salt |
Slippery road conditions | Unit: no ice/snow, snow, ice |
Road surface temperature & below ground temp. | |
Principle | NTC |
Measuring range | -40 … 80 °C |
Unit | °C |
Accuracy | ±0.1°C (-20 … 20°C), else ±0.2°C |
Resolution | 0.1 |
Freezing point | |
Measuring range | -40 … 0 °C |
Unit | °C |