Intelligent road sensor IRS21 | Road sensors
Description:
With 100m cableSupplementary 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.).Special features:
- Interchangeable sensor/electronics
- Polling via RS485-interface
- Low energy consumption (solar operation)
- Radar procedure to measure water film
Shopping basket
Technical data
| Dimensions | Ø 120mm, height 50mm |
| Detectable road conditions | Dry/wet/critical wetness/ice alert |
| 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 name | Product group | Ref.no. | Product comparison | |
|---|---|---|---|---|
 |
Interface converter IRS21CON | Accessories | 8410.UISO |
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