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Operating Manual V8.2/03.2017 

 

Non Invasive Road Sensor 

 

G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany 

9

 

 
 
 
 

 

 

 

 

 

 

4.7 

Saline Concentration 

The saline concentration is calculated from the current freezing temperature. 

Note: 

The saline concentration can only be determined if ice percentages have already 

formed. Determination of saline concentration is currently limited to the de-icing agent 
sodium chloride (NaCl). 

4.8 

Snow Height 

The sensor detects the snow height in the field of measurement. 

Note:

 the snow height is an additional information and it is not part of the water equivalent. 

4.9 

Friction 

Friction describes the grip of tires on the road surface. This can be reduced as a result of 
environmental influences such as rain or snow. The value of the friction is scaled between 
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. 

 

 

Содержание NIRS31-UMB

Страница 1: ......

Страница 2: ...G Lufft Mess und Regeltechnik GmbH Fellbach Germany Subject to change without notice 48 7230 NIRS31E Document version V8 2 03 2017...

Страница 3: ...MB 10 5 Generation of Measurements 11 5 1 Current Measurement act 11 6 Operation Modes 11 6 1 Normal Operation 11 6 2 Energy Saving Mode 11 7 Measurement Output 12 7 1 Measurements 12 7 2 Additional S...

Страница 4: ...Test 32 14 5 Checking the Sensor Adjustment 33 14 6 Generate Status File 33 15 Technical Data 34 15 1 Measurement Range Accuracy 35 15 2 Drawings 36 16 Fault Description 37 17 Disposal 38 17 1 Within...

Страница 5: ...ssioning must only be carried out by suitably qualified specialist personnel Never take measurements on or touch live electrical parts Pay attention to the technical data and storage and operating con...

Страница 6: ...consists of the following components Sensor NIRS31 UMB Mast clamp Sounding pipe Operating manual Transport packaging Note The delivery does not include a connection cable this must be ordered to the...

Страница 7: ...cable including connector 8371 UK050 Power supply unit 24V 100VA 8366 USV1 ISOCON UMB 8160 UISO Surge protection 8379 USP 3 2 Spare Parts Reflector unit 8710 ULAMP 3 3 Additional Documents and Softwar...

Страница 8: ...e plug in terminal and associated connection cable available in lengths of 15m and 50m The measured values can be requested over the RS485 interface in accordance with the UMB protocol During commissi...

Страница 9: ...ent sodium chloride NaCl 4 8 Snow Height The sensor detects the snow height in the field of measurement Note the snow height is an additional information and it is not part of the water equivalent 4 9...

Страница 10: ...g Manual V8 2 03 2017 Non Invasive Road Sensor 10 G Lufft Mess und Regeltechnik GmbH Fellbach Germany Fig 1 Sensor Technology 4 10 Sensor Technology NIRS31 UMB Receiver Pyrometer Reflector unit Soundi...

Страница 11: ...ements the sensor is switched to a standby mode Thereby the power consumption is reduced on average to lower than 35 6 2 1 Restrictions in Energy Saving Mode Note Setting the sensor to energy saving m...

Страница 12: ...ure 40 0 158 0 F 7 1 2 Freezing Temperature Sampling rate 1 minute Units C F Request channels UMB Channel Measuring Range act min max avg Measurement Variable float32 min max unit 110 Freezing tempera...

Страница 13: ...ater water film height is equal or greater than the wet threshold snow ice frozen water is on the road it s in the form of snow or ice a differentiation is not possible snow frozen water is on the roa...

Страница 14: ...ng rate 1 minute Units Request channels UMB Channel Measuring Range act min max avg Measurement Variable float32 min max unit 810 Saline concentration NaCl 0 0 100 0 7 1 8 Snow Height Sampling rate 1...

Страница 15: ...the reflector unit to restore correct operation 7 2 1 Measure Status UMB Channel act Measurement Variable uint8 4003 Measure Status Bit 0 Status Transmitter 0 transmitter is working properly 1 transmi...

Страница 16: ...UMB Channel Measuring Range act Measurement Variable float32 min max unit 4004 energy consumption ratio 0 0 100 0 In normal operation mode the energy consumption ratio and thus the energy consumption...

Страница 17: ...ening Attach the bracket to the mast at the prescribed height using the bolts nuts and washers provided Hold the nut firmly with one wrench and tighten the bolts evenly and securely with the second wr...

Страница 18: ...nter of the measurement field on the road surface Align the sensor with the center of the roadway while retaining the angle of measurement between 45 and 85 and firmly tighten the bolts Note If you wi...

Страница 19: ...or a complete road section ATTENTION Only approved and tested appliances conductors risers etc should be used to install the device on the mast All relevant regulations for working at this height must...

Страница 20: ...Sensor 20 G Lufft Mess und Regeltechnik GmbH Fellbach Germany Fig 6 Installation Sketch Mast 8 3 3 Installation Sketch Mast Measurement distance c 6 to 15m Measurement angle between 45 and 85 Measurem...

Страница 21: ...rmany 21 Fig 7 Installation Sketch Gantry 8 3 4 Installation Sketch Gantry Lateral view from the side of the road Measurement distance c 6 to 15m Measurement angle between 45 and 85 Measurement surfac...

Страница 22: ...N 47100 Note the connection cable screen must NOT be laid to ground in the control panel If the equipment is not connected correctly It may not function It may be permanently damaged The possibility o...

Страница 23: ...B 8160 UISO Note Please refer to the ISOCON UMB operating manual when assembling the system 9 6 Use of Surge Protection 8379 USP When using surge protection order no 8379 USP please refer to the conne...

Страница 24: ...he UMB Config Tool Only switch on the power supply after the installation is complete Readjustment is necessary in the event of any change to the position alignment and measurement distance or install...

Страница 25: ...ct 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 In sensor configuration now select the Load profile from senso...

Страница 26: ...missivity 0 95 Water film moisture threshold 30 m Water film wetness threshold 100 m Note The device ID must be changed if several non invasive road sensors are operated on a UMB network as each devic...

Страница 27: ...aving the configuration on the sensor the sensor communicates at the new baud rate When operating the sensor in a UMB network with ISOCON UMB this baud rate must not be changed otherwise the sensor is...

Страница 28: ...twork during the function test 12 3 1 Channels for Measurement Polling You can select the channel for measurement polling by the UMB Config Tool by clicking on the respective channel Note Channel sele...

Страница 29: ...out a firmware update on site with no need to remove the sensor and return it to the manufacturer The firmware update is carried out with the aid of the UMB Config Tool The description of the firmwar...

Страница 30: ...specialists only and in dry weather no precipitation as the housing has to be opened Otherwise the equipment can be damaged due to the presence of moisture inside the unit Important note When carryin...

Страница 31: ...two screws Pay attention that no cable will be trapped while closing the front 14 2 Cleaning the Transmitter and Receiver Plates If the transmitter and receiver plates are dirty clean them with a damp...

Страница 32: ...m the performance of maintenance with OK Important note Only use this function if maintenance was actually carried out and the reflector unit was actually replaced Important note When carrying out thi...

Страница 33: ...To verify the adjustment chose the menu Options NIRS31 UMB NIRS31 UMB check adaption in the UMB Config Tool Check the sensor ID and if necessary change it to the ID of the Sensor then click the Check...

Страница 34: ...approx 9 9 kg Mast bracket weight approx 1 0 kg Fastening Mast bracket for 60 76mm Protection class III SELV Protection type IP65 Storage conditions Permissible storage temperature 40 C 70 C Permissib...

Страница 35: ...Spectroscopic Measuring range 0 2000 m Resolution 0 01 m Sampling rate 1 minute Units m mil 15 1 4 Freezing Temperature Measurement process Spectroscopic Measuring range 40 C 0 C Resolution 0 1 C Samp...

Страница 36: ...Operating Manual V8 2 03 2017 Non Invasive Road Sensor 36 G Lufft Mess und Regeltechnik GmbH Fellbach Germany Fig 16 NIRS31 UMB 15 2 Drawings...

Страница 37: ...nel was requested that is not available on this device Device transmits error value 28h 40d Device is in initialization phase after start up wait until first measurement is complete Device transmits e...

Страница 38: ...trical and electronic equipment in your respective country 18 Repair Corrective Maintenance Please arrange for any faulty equipment to be checked and if necessary repaired by the manufacturer exclusiv...

Страница 39: ...m height 0 0 393 7 mil Ice layer thickness 601 ice layer thickness 0 0 2000 0 m 606 ice layer thickness 0 0 393 7 mil Snow height 610 snow height 0 0 10 0 mm Ice percentage 800 ice percentage 0 0 100...

Страница 40: ...ce 32 Road is wet with liquid water aqueous solution 64 Road is covered with frozen water solid aqueous solution 65 Road is covered with snow or slush Mixture of liquid and frozen water or aqueous sol...

Страница 41: ...oad transmission 02h 1 byte cmd Command 1 byte verc Version number of the command 1 byte payload Data bytes 0 210 bytes ETX Control character for the end of payload transmission 03h 1 byte cs Check su...

Страница 42: ...t is 23h The version number of the command is 1 0 10h The channel number is in payload as can be seen from the channel list page39 the current road surface temperature in C in the channel is 100d 0064...

Страница 43: ...suring range e g ADC over range 53h 83d 54h 84d Error in measurement data or no valid data available 55h 85d Device sensor unable to carry out valid measurements due to ambient conditions 19 3 6 CRC C...

Страница 44: ...Commands Command Function BC AZ M Online data request l X Switches to binary protocol k R Triggers software reset k D Software reset with delay k I Device information k These operating instructions de...

Страница 45: ...lm height Water film height 0 0 2000 0 m Snow depth Snow depth 0 0 10 0 mm Percentage Ice percentage 0 0 100 0 Saline concentration 0 0 100 0 Friction 0 0 1 0 none 19 4 5 Status and Error Codes in ASC...

Страница 46: ...he baud rate to 1200 Measurement data can be transmitted alternatively in metric or US units The selection is done by the UMB Config Tool Metric units US units When operating the device in SDI 12 mode...

Страница 47: ...b 0 9 A Z a z aM Measurement basic data set aMC Measurement basic data set transmit values with CRC aC Concurrent measurement basic data set aCC Concurrent measurement transmit values with CRC aD0 Dat...

Страница 48: ...ocument always measure continuously During certain phases of the measurement process the availability of the device for communication is limited This causes some special properties The device does not...

Страница 49: ...e variant with without pyrometer Buffers 1 to 3 are available only from devices with pyrometer If the measurement value is not available for some reason e g sensor failure this is indicated by a value...

Страница 50: ...easurement values are available 0D0 0 251 4 30 0 2 CR LF Water film 251 4 m 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...

Страница 51: ...ing temperature NaCl 110 40 0 70 0 C Buffer 2 Snow height 610 0 0 10 0 mm Saline concentration NaCl 810 0 0 100 0 Buffer 3 Friction 820 0 0 1 0 Road Weather Index 910 0 1 2 Code Device configured for...

Страница 52: ...ponds with a0004 CR LF to the request i e 4 values are available in the buffers The first measurement value transmitted in buffer 0 contains the status information of the measurement channels The stat...

Страница 53: ...o change the unit system used for the SDI 12 data between metric and US units It is implemented as manufacturer specific X command Command aXU u m Response aU u m CR LF u US units m metric units Examp...

Страница 54: ...e pyrometric temperature measurement Command aXO nn n nn n offset in C Response aXO nn n CR LF The response to the attempt of setting of an invalid value is aXOf CR LF Example The offset shall be set...

Страница 55: ...rved otherwise the new adjustment of the sensor cannot be completed successfully Command aXRs Response aXRok CR LF The response is followed by the station reset i e the station will be offline for a f...

Страница 56: ...hment 17 Fig 4 Aligning the Sensor 18 Fig 5 Roadway Condition 19 Fig 6 Installation Sketch Mast 20 Fig 7 Installation Sketch Gantry 21 Fig 8 Connector 22 Fig 9 Connection to ISOCON UMB 23 Fig 10 New A...

Страница 57: ...I Ice Layer Thickness 12 ICe Layer Thickness 8 Ice Percentage 8 14 Incorrect Use 5 Installation 17 Installation Location 19 Interface 22 34 ISOCON UMB 23 L Lamp Status 15 M Maintenance 30 Measurement...

Страница 58: ......

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