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NIRS31 Non Invasive Road Sensor Operational Manual...
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70736 Fellbach Germany +49 711 51822 -0 met-info@otthydromet.com www.otthydromet.com All rights reserved. All content is the intellectual property of OTT HydroMet. Reprinting, duplication and translation (even as excerpts) are only permitted with the prior written consent of OTT HydroMet. Subject to technical change.
Table of contents Scope of supply Order numbers and variant code Product variants Accessories and spare parts 2.2.1 Accessories 2.2.2 Spare parts About this manual Other applicable documents and software General signs and symbols Explanation of warnings General safety instructions Intended use Potential misuse Personnel qualification...
2 Order numbers and variant code 2.1 Product variants Variant Order number NIRS31-UMB 8710.UT01 2.2 Accessories and spare parts 2.2.1 Accessories Item Order number Power supply unit 24 V/100 VA 8366.USV1 ISOCON-UMB 8160.UISO Surge protection 8379.USP Lufft sensor cable 15 m 8371.UK015 Connection cable 30 m 8371.UK030 2.2.2 Spare parts Item...
3 About this manual This operational manual is designed for devices manufactured from November 2022. 3.1 Other applicable documents and software The following documents contain further information on installation, maintenance and calibration: – NIRS31 Installation Guide and Checklist – Operating Manual UMB ISO Converter ISOCON –...
3.3 Explanation of warnings To avoid personal injury and material damage, you must observe the safety information and warnings in the operating manual. The warnings use the following danger levels: WARNING WARNING This indicates a potentially hazardous situation. If the hazardous situation is not avoided, it may result in death or serious injuries.
4 Install and operate the product under the technical conditions described in the operational manual. 4 Do not change or convert the product in any way. 4 Do not perform any repairs yourself. 4 Get OTT HydroMet to examine and repair any defects. <9>...
4 Ensure that the product is correctly disposed of. Do not dispose of it in household waste. 4.7 Health hazards 4.7.1 Risk of electrical shock Live parts can cause electric shocks in the event of contact. 4 Never take measurements on live electrical parts. 4 Never touch live electrical parts.
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Changes or modifications to this equipment not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. IC (CA) Canadian Radio Interference-Causing Equipment Regulation, ICES-003, "Class A" This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
5 Product description 5.1 Design and function The non-invasive road sensors are used for road weather monitoring. The device measures the surface temperature, water film height and ice layer thickness on the road by means of non-invasive optical spectroscopy and a pyrometer. Thus the device can be used for the acquisition of a variety of measurement variables to determine the corresponding road conditions relevant for winter maintenance services.
6 Transport, storage, and unpacking 6.1 Unpacking 4 Use two people to carefully remove the product from the packaging. 4 Check that the delivery is complete and undamaged. 4 If you find any damage or if the delivery is incomplete, then immediately contact your supplier or manufacturer.
7 Installation 7.1 Mechanical installation 7.1.1 Required tools and aids The following tools and aids are required: – two open-end or box wrenches, SW 17 7.1.2 Choosing a site WARNING Risk of injury due to improper installation! If the mast or the device is installed improperly, damage to the device and injury to people may result. 4 Ensure that the mast stands on a stable surface.
α Measurement angle between 45 and 85° Measurement surface diameter = c / 10 α Installation on a sign gantry Measurement distance 6 to 15 m α Measurement angle between 45 and 85° Measurement surface diameter = c / 10 4 Ensure there are two people at the installation site to install the device. 4 Install the device on the mast or sign gantry.
Bolt 4 Loosen the nuts. 4 Push the bracket onto the mast from above at the desired height. 4 Attach the bracket to the mast with the bolts, nuts and washers. 4 Hold the nut firmly with one wrench. 4 Tighten the bolt evenly and secure with the second wrench. 7.1.5 Aligning and fastening device Bolts with washer on bracket Sounding pipe...
4 Fasten the bracket with the bolts to the sensor (2). 4 Push the device onto the bracket on the mast from above. 4 Fasten the device with the bolts and washers (1). 4 Tighten the bolts (2), but make sure that the device can still be moved. The device must be aligned with the center of the roadway, while retaining the angle of measurement (between 45 and 85°).
Number Color Assignment Green RS-485_A (+) Blue Not connected White Supply voltage ground and SDI-12_GND Brown Positive supply voltage 7.2.1.1 Connecting devices in SDI-12 mode The RS-485 interface can be switched to SDI-12 via the sensor configuration. Power supply by the SDI-12 bus Number Color Assignment...
+12V GND1 +24V GND2 Green: RS-485 interface A Yellow: RS-485 interface B 4 Connect the green and yellow wires to the ISOCON-UMB converter. 4 Connect the brown and white wires directly to the power supply unit, not to the ISOCON-UMB converter. 4 Refer to the operating manual UMB ISO converter ISOCON.
8 Commissioning 8.1 Initial commissioning During the initial commissioning of the device (for a period of 10 minutes) and the associated adaptation the following conditions must be met: ü the roadway must be completely dry ü no heavy traffic ü the power supply must not be interrupted 4 Adjust the device only if the roadway is dry.
– Due to the low power, the sensor can freeze rather. 8.4 Configuration and testing For configuration and testing OTT HydroMet Fellbach GmbH provides the proprietary software ConfigTool.NET. ConfigTool.NET can also be used to update the firmware of the device.
4 Select the Main tab. 4 Select Store profile on sensor. 4 Confirm with Save/Exit. 8.6 General settings Parameter Description Device-ID Factory setting: 1 Assign the IDs for the devices in ascending order. Description To differentiate the devices enter a description, e.g. the location. Linespeed Transmission speed of the RS-485 interface Factory setting: 19200...
Parameter Description Waterfilm damp threshold The road condition "damp" is transmitted with effect from this water film height. Note: On polling the TLS channel the condition 32 is transmitted with effect from this threshold. Waterfilm wet threshold The road condition "wet" is transmitted with effect from this water film height. 8.8 Testing The functions of the device can be tested with the software ConfigTool.NET by polling various channels.
9 Maintenance 9.1 Maintenance schedule The frequency of cleaning is dependent upon the local weather and environmental conditions. The following maintenance intervals are recommended: Interval Activity Performed by Annually 4 Check the device for cleanliness. Operator 4 Clean the transmitter and receiver plates with a damp, lint-free cloth if dirty and dry with a dry, lint- free cloth.
4 In the main menu in the Options drop-down list, select NIRS31-UMB and from the list NIRS31-UMB Service. 4 Check the maintenance steps and confirm with OK. 9.4 Performing function test To check the function of the sensor after maintenance, a function test must be performed. 4 Test the functions of the device, as described in the chapterTesting [} 23].
4 Check and adjust the device ID, if necessary, then click Check status. ð A message appears stating whether the adjustment is correct. 4 If the adjustment is not correct, repeat the adaptation. 9.6 Generating status file 4 In the main menu in the Options drop-down list, select NIRS31-UMB and from the list NIRS31-UMB generate statusfile.
Device is unable to execute a – 55h (85d) valid measurement due to ambient conditions, e.g. the measurement field is blocked by a vehicle Device transmits an unknown – 4 Report any malfunction to the error value representative of OTT HydroMet. <27>...
11 Repair 11.1 Customer support 4 Have repairs carried out by OTT HydroMet service personnel. 4 Only carry out repairs yourself, if you have first consulted OTT HydroMet. 4 Contact your local representative: www.otthydromet.com/en/contact-us 4 Include the following information: – instrument model –...
In accordance with the German Electrical and Electronic Equipment Act (ElektroG; national implementation of EU Directive 2012/19/EU), OTT HydroMet takes back old devices in the Member States of the European Union and disposes of them in the proper manner. The devices that this concerns are labeled with the following symbol:...
13 Technical data 13.1 General technical data Specification Value Fastening Mast bracket for diameter 60 to 76 mm Housing Aluminum, plastic cover Protection class III (SELV) Protection type IP65 Operating temperature range -40 to +60 °C Humidity range 0 to 100 % Storage temperature range -40 to +70 °C Humidity range (non-condensing, 0 to 95 % during storage) 13.2 Electrical data...
13.4 Dimensions and weight Specification Value Dimensions (height x width x 425 x 225 x 285 mm depth) Weight NIRS31 Approx. 9900 g Weight mast bracket Approx. 1000 g 13.5 Measuring range and accuracy Road surface temperature Specification Value Measurement process Pyrometer Measuring range -40 °C to +70 °C Resolution 0.1 °C...
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Specification Value Sampling rate 1 minute < Units °C; °F Ice percentage Specification Value Measurement process Spectroscopic Measuring range 0 to 100 % Resolution 0.1 % Sampling rate 1 minute < Units Saline concentration Specification Value Measurement process Spectroscopic Measuring range 0 to 100 % Resolution 0.1 % Sampling rate...
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