Lufft NIRS31-UMB Operating Manual
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Lufft NIRS31-UMB Operating Manual

Non invasive road sensor
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  • Page 2 48.7230-NIRS31E Document version V8.2 (03/2017) © G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany. Subject to change without notice.

  • Page 3: Table Of Contents

    11.1 Readjustment using the UMB Config Tool ......................25 11.2 Adjustment during Operation ..........................25 12 Configuration and Testing............................26 12.1 Factory Settings ..............................26 12.2 Configuration with the UMB Config Tool ......................26 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...
  • Page 4 19.2 Channel List Summary per TLS2002 FG3 ......................40 19.3 Communication in Binary Protocol ........................41 19.4 Communication in ASCII Protocol ........................44 19.5 Communication in SDI-12 Mode ........................46 20 List of Figures ................................56 21 Index ..................................57 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...

  • Page 5: Please Read Before Use

    This manual is valid for devices of the Lufft NIRS31-UMB with device version 21 or higher (03/2013). Some functions or features specified in this manual may not be available or may not be valid with older device versions.

  • Page 6: Scope Of Delivery

    Note: The delivery does not include a connection cable; this must be ordered to the required length (15 or 50 meters; see Accessories page 7). Note: The sensor must always be transported in the original packaging, as otherwise it will be damaged. G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...

  • Page 7: Order Numbers

    8379.USP Surge protection Spare Parts  8710.ULAMP Reflector unit Additional Documents and Software You can download the following documents and software via the Internet at www.lufft.com.  Operating Manual This document  ® Windows software for testing, firmware updates and...

  • Page 8: Equipment Description

    Equipment Description Depending on the requirements of the road traffic meteorological monitoring network, sensors are installed in the roadways and / or "overhead". The Lufft NIRS31-UMB completes the product range to include a non-invasive, intelligent sensor. The NIRS31-UMB provides an alternative to the Lufft IRS31-UMB, especially for measuring points such as bridges, which do not always allow direct installation of sensors in the roadway.

  • Page 9: Saline Concentration

    0.1 and 1.0. High values indicate a good grip, and low values indicate a bad grip. The highest value is reached in dry road conditions. If there is water on ice the lowest value is the result. G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...

  • Page 10: Sensor Technology Nirs31-Umb

    Operating Manual V8.2/03.2017 Non Invasive Road Sensor 4.10 Sensor Technology NIRS31-UMB Receiver Reflector unit Pyrometer Sounding pipe Fig. 1: Sensor Technology G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...

  • Page 11: Generation Of Measurements

    In case of heavy traffic load, it is used to measured more often for a proper function of the noise suppression; this maybe increase the power consumption  Very high traffic load can cause interference of the measurement.  Due to the low power, the sensor can freeze rather G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...

  • Page 12: Measurement Output

    µm; mil Request channels: UMB Channel Measuring Range Measurement Variable (float32) unit Ice layer thickness 2000.0 µm Ice layer thickness 78.7 The indication of ice layer thickness corresponds to the water equivalent. G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...
  • Page 13 1.5 °C, the formation of ice particles has already begun. The thresholds for damp and wet in the factory settings are 30 and 100µm, they can be adjusted in the sensor configuration. G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...
  • Page 14 Request channels: UMB Channel Measuring Range Measurement Variable (float32) unit Snow height 10.0 7.1.9 Friction Sampling rate <1 minute Units none Request channels: UMB Channel Measuring Range Measurement Variable (float32) unit Friction none G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...

  • Page 15: Additional Sensor Information

    Bit 4 Status Signal example, it can be caused by a stationary vehicle under the sensor; after this failure the sensor is working properly again G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...
  • Page 16 In normal operation mode, the energy consumption ratio and thus the energy consumption is always 100%, because the sensor is in continuous operation. In energy save mode, the value is the energy consumption ratio of the last hour. G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...

  • Page 17: Installation

    Attach the sensor to the bracket from above and fasten using the bolts and washers provided. Tighten the bolts but make sure that the sensor can still be moved. Washer Bolt Fig. 3: Sensor Attachment G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...

  • Page 18: Aligning The Sensor

    Note: If you wish to attach the sensor to the opposite side of the mast, you can adjust the bracket on the sensor prior to installation. To do this, remove the 4 bolts marked *1, rotate the bracket by 180° and reattach with the 4 bolts. G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...

  • Page 19: Selecting The Installation Location

    The measurement surface of the roadway should be as even, flat and level as possible. Important note: The measurement surface of the roadway must be free of disturbances and flaws, e.g. road markings, manhole covers, potholes or cracks.  Fig. 5: Roadway Condition G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...
  • Page 20 8.3.3 Installation Sketch Mast Fig. 6: Installation Sketch Mast Measurement distance c: 6 to 15m Measurement angle α: between 45 and 85° Measurement surface diameter d = measurement distance c / 10 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...
  • Page 21 Direction of traffic Fig. 7: Installation Road surface Sketch Gantry Measurement distance c: 6 to 15m Measurement angle α: between 45 and 85° Measurement surface diameter d = measurement distance c / 10 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...

  • Page 22: Connections

    See page 34 for more details. RS485 Interface The equipment has an electrically isolated, half-duplex, 2 wire RS485 interface for configuration, measurement polling and the firmware update. See page 34 for technical details. G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...

  • Page 23: Connection To Isocon-Umb (8160.Uiso)

    Note: Please refer to the ISOCON-UMB operating manual when assembling the system. Use of Surge Protection (8379.USP) When using surge protection (order no.: 8379.USP), please refer to the connection example in the surge protection operating manual. G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...

  • Page 24: Commissioning

    UMB Config Tool (see page 28).  If several NIRS31-UMB devices are operated on a UMB network, a unique device ID must be assigned to each device (see page 27). G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...

  • Page 25: Sensor Adjustment

    Note: Please refer to the conditions and instructions on page 24. 11.1 Readjustment using the UMB Config Tool In sensor selection, select a NIRS31-UMB with associated ID (ID 1 in this example): Check the sensor in the list with a mouse click and select the ‘Configure’ function.

  • Page 26: Configuration And Testing

    PC software. For this reason only the menus and functions specific to this sensor are described here. 12.2.1 Sensor Selection In ‘Sensor Selection’, the road sensor is displayed as NIRS31-UMB (Class ID 5). Fig. 11: Sensor Selection Note: All other devices which are used in the polling process, e.g. modems, LCOM etc., must be disconnected from the UMB network during configuration.
  • Page 27 The road condition “wet” is transmitted with effect from this Waterfilm wet threshold: water film height. Other Parameters: All other parameters should be changed only on the advice of the manufacturer. G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...

  • Page 28: Function Test With The Umb Config Tool

    Note: The UMB Config Tool is provided for test and configuration purposes only. It is not suitable for the permanent acquisition of measurement data. We recommend the use of professional software solutions for this purpose, e.g. SmartView3. G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...

  • Page 29: Firmware Update

    The description of the firmware update can be found in the instructions for the UMB Config Tool. Please download the latest firmware and UMB Config Tool from our website ® www.lufft.com and install it on a Windows PC. You can find the instructions here: G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...

  • Page 30: Maintenance

    Note: Hold the front of the sensor while loosening the screws to ensure that the front of the sensor does not fall downwards. Remove the reflector unit connection cable and the 3 retaining springs. G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...

  • Page 31: Cleaning The Transmitter And Receiver Plates

    Do not use solvents such as benzene, thinner, alcohol, kitchen cleaners, etc. to clean the sensor as these can damage the housing and optical parts. If you use a chemical cleaning cloth, please refer to the associated instructions. G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...

  • Page 32: Resetting The Service Level

    After carrying out maintenance and replacing the reflector unit, the sensor must be informed about this procedure using the UMB Config Tool. In the menu under ‘Options’, select the entry ‘NIRS31-UMB’  ‘NIRS31-UMB Service’: Confirm the performance of maintenance with ‘OK’.

  • Page 33: Checking The Sensor Adjustment

    After the test, a message appears stating whether the adjustment is correct. If it’s not, a new adaptation can be performed. 14.6 Generate Status File To generate a status file chose the menu "Options"  "NIRS31-UMB"  "NIRS31-UMB Generate Status File" in the UMB Config Tool. Follow the instructions.

  • Page 34: Technical Data

    2 bits after stop bit edge Adjustable baud rates: 1200, 2400, 4800, 9600, 14400, 19200 , 28800, 57600 (SDI-12 Mode: 1200 fixed) Housing: Aluminium; plastic cover Factory setting and baud rate for firmware update G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...

  • Page 35: Measurement Range / Accuracy

    15.1.7 Snow Height Measurement process: Spectroscopic Measuring range: 0 ... 10mm Resolution: 0.01mm Sampling rate: <1 minute Units: 15.1.8 Friction Measurement process: Spectroscopic Measuring range: 0 ... 1 Resolution: 0.01 Sampling rate: <1 minute G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...

  • Page 36: Drawings

    Operating Manual V8.2/03.2017 Non Invasive Road Sensor 15.2 Drawings Fig. 16: NIRS31-UMB G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...

  • Page 37: Fault Description

    - in the measurement field stands a vehicle for a certain time e.g. traffic jam Device transmits an error value not There may be several reasons for this behaviour  contact the manufacturer’s technical support listed here service. G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...

  • Page 38: Disposal

    Or your local distributor. 18.1 Technical Support Our Hotline is available for technical questions via the following e-mail address: hotline@lufft.de (menu header: Support  You can also consult frequently asked questions at www.lufft.com FAQs). G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...

  • Page 39: Appendix

    Remaining time to service 4001 rem. Time to service -10000.0 10000.0 Lamp Status Lamp OK 4002 lamp status Lamp faulty Device Status 4003 measure status See page 15 4004 energy consumption ratio 100.0 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...

  • Page 40: Channel List Summary Per Tls2002 Fg3

    8 Bit surface state for winter Damp services FZW Extremely Wet Slippery 0…100 % 1129 Result message Ice 8 Bit = 0d = 00h percentage = 100d = 64h = 255d = FFh G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...

  • Page 41: Communication In Binary Protocol

    Only one example of an online data request is described in this operating manual. Please refer to the current version of the UMB Protocol for all commands and the exact mode of operation of the protocol (available for download at www.lufft.com). Note: Communication with the sensor takes place in accordance with the master-slave principle, i.e.
  • Page 42 Putting the class and device IDs together gives the address 5001h (20481d). 19.3.4 Example of a Binary Protocol Request If, for example, a NIRS31-UMB device with the device ID 001 is to be polled from a PC for the current road surface temperature, this takes place as follows:...
  • Page 43 01 10 16 F0 01 50 1C 02 2F 10 00 03 08 00 64 00 16 8F C2 45 41 08 00 58 02 16 9A 59 7B 43 05 00 84 03 10 02 03 28 A4 04 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...

  • Page 44: Communication In Ascii Protocol

    0 – 65520d. Various error codes are defined from 65521d – 65535d. Example: &_20481_M_00100 Request: By way of this request, channel 100 of the device with address 20481 (NIRS31-UMB with device ID 001) is requested. $_20481_M_00100_34785 Response: This channel outputs a temperature from –40 to +70°C;...
  • Page 45 Measurement value outside measuring range (too low) 65525d Measurement data error or no valid data available 65526d Device / sensor unable to execute valid measurement due to ambient conditions 65534d Invalid calibration 65535d Unknown error G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...

  • Page 46: Communication In Sdi-12 Mode

    Connect the PC to the NIRS31-UMB through an RS-485 converter (e.g. ISOCON)  Start the UMB Config Tool and create a NIRS31-UMB with the address of the actual device and activate at least one sensor. Start the measurement (will report connection error at first) ...
  • Page 47 19.5.2 Command Set For details of the SDI-12 protocol please refer to the above mentioned standard document. Following commands are available for the NIRS31-UMB: Note: The examples in the following sections use italics to print the requests from the logger...
  • Page 48 The composition of the basic data set depends on the variant (with / without pyrometer) of the actual device (see below). Due to the applied measurement processes the NIRS31-UMB will, different from other sensors described in the SDI-12 document, always measure continuously. During certain phases of the measurement process the availability of the device for communication is limited.
  • Page 49 Water film 251.4µm, ice percentage 30.0, road condition 2 0D1! 0+12.4-5.1<CR><LF> Road surface temperature 12.4°C, freezing temperature -5.1°C 0D2! 0+3.4+25.3<CR><LF> snow height 3.4mm, saline concentration 25.3% 0D3! 0+0.4+1<CR><LF> friction 0,4, road weather index 1 (values for illustration purposes only) G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...
  • Page 50 Water film 251.4µm, ice percentage 30.0, road condition 2 0D1! 0+12.4-5.1<CR><LF> Road surface temperature 12.4°C, freezing temperature -5.1°C 0D2! 0+3.4+25.3<CR><LF> snow height 3.4mm, saline concentration 25.3% 0D3! 0+0.4+1<CR><LF> friction 0,4, road weather index 1 (values for illustration purposes only) G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...
  • Page 51 Buffer ‘1’ -40.0 Road surface temperature 150.0 °F -40.0 Freezing temperature (NaCl) 32.0 °F Buffer ‘2’ Snow height 10.0 Saline concentration NaCl 100.0 Buffer ‘3’ Friction Road Weather Index 0, 1, 2 Code G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...
  • Page 52 (P: with pyrometer, N: without pyrometer) y: Metric / US units ( m = metric, u = US ) nnn: Software version i.e. for a NIRS31-UMB with pyrometer, configured for US units: 013Lufft.deNIRSPu022 19.5.6 Message Verification The command verification aV! is used to evaluate status information of the device. The device responds with a0004<CR<LF>...
  • Page 53 “damp” threshold in µm water film Response: aXM+nnnn<CR><LF> The response to the attempt of setting of an invalid value (1<threshold<100) is aXMf<CR><LF> Example: The “damp” threshold shall be set to 30µm 0XM+30! 0XM+30<CR><LF> G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...
  • Page 54 19.5.12 Message: Station Reset The command initiates a station reset. Command: aXRr! Response: aXRok<CR><LF> The response is followed by the station reset, i.e. the station will be offline for a few seconds. Example: 0XRr! 0XRok<CR><LF> G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...
  • Page 55 Command: aXRa! Response: aXRok<CR><LF> The response is followed by the station reset, i.e. the station will be offline for a few seconds. Example: 0XRa! 0XRok<CR><LF> G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...

  • Page 56: List Of Figures

    Fig. 12: General Settings ..............................27 Fig. 13: Equipment Settings ............................. 27 Fig. 14: Measurement Polling Channels ........................... 28 Fig. 15: Example of Measurement Polling ........................28 Fig. 16: NIRS31-UMB ............................... 36 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...

  • Page 57: Index

    Ice Percentage ............8, 14 Incorrect Use ..............5 UMB Config Tool............ 26, 28 Installation ..............17 Installation Location............19 Water Film Height ............ 8, 12 Interface ..............22, 34 Weight ................34 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...

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