Lufft Intelligent Road Sensor IRS31 Pro-UMB, 328 ft Supply Cable, 2 Temperature Depth Sensors
Product Number: 8910.U102Number of Depth Sensors
Cable Length
Overview
The passive intelligent 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 are available for further processing in the form of a standard protocol (Lufft UMB protocol).
Benefits
Invasive sensors embedded in the road allows all time measurements of water film height, road surface and depth temperature and road condition even at heavy traffic conditions.
Sensor consists of two parts: replaceable sensor head with electronics and fixed mounted socket.
Low energy consumption allows solar operation.
Permanent usage on runways where non-invasive sensors cannot be used.
Specifications
Technical Attributes
| Detectable road conditions | Dry/moist/wet/moist with salt/wet with salt/ice |
| Cable Connection | Open wires 0.5 mm² |
| Number of Depth Sensors | 2 |
| Accuracy | Road surface temperature: ±0.2 °F (-4 - +68 °F), else ±0.4 °F Freezing point: ±1 °F (32 - +27.5 °F), else ±20 % of average value (at de-icing agent NaCI) Water film height: 0.2 mm - 3 mm: better than ±30 % |
| Measurement technology | Ice percentage: Conductivity measurement Water film: Radar measurement Road surface temperature: NTC |
| Product highlights | Two part housing design allows easy maintenance/re-calibration Low energy consumption allows solar operation Radar principle to measure water film |
| Measurement Range EU | Road surface temperature: -40 - +176 °F Freezing point: -40 - +32 °F Water film height: 0 - 0.16 in Friction (Grip) [slippery-dry]: 0 - 1 Ice Percentage: 0 - 100 % |
| Cooling Sensor | N.A. |
| Power supply | 9 - 14 VDC, nominal 12 V |
| Weight EU | Approx. 1.8 lb (800 g) without cable and without external temperature probe |
| Measurement distance | in-situ |
| Connector (text) | Cable 0.5 mm² |
| Parameters Measured | 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/moist with salt/wet with salt Friction Ice Percentage Depth: 2 additional depth sensors |
| Material enclosures | Salt , UV resistant modified PTFE |
| Standard storage temperature | -40 - +158 °F (in packaging) |
| Communication | SDI-12, RS485-UMB |
| Operating temp range 1 | -40 - +176 °F |
| Slippery road conditions | Unit: no ice/snow, snow, ice |
| Interface | RS485 Baud rate: 2400 - 38400 bit/s (Standard: 19200) or SDI-12 |
| Road dampness | Unit: dry/damp/wet/damp with salt/wet with salt |
| Casing IP Rating | IP68 |
| Operating humidity | 0 - 100 % RH |
| Number of Related Temperature Sensors | 2 |
| Height above Absolute Altitude | 9843 ft (3000 m) |
| Resolution EU | Road surface temperature: 32.18 °F (0.1 °C) Freezing point: 32.18 °F (0.1 °C) Water film height: 0.0004 in (0.01 mm) |
| Dimensions (free text) | Ø 4.72441 in, H 1.97 in (Ø 120 mm, H 50 mm) |
| Cable Length | 100 m (328 ft) |
| Number of Depth Temperature Sensors | 2 |
Resources
Manuals (6)
Software/Firmware (1)
Certificates (1)
Case Studies (2)
Guides (1)
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