Furuno WR2120 Installation Manual
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Furuno WR2120 Installation Manual

Weather radar
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S2E-17-0209_IM_WR2120_C
INSTALLATION
MANUAL
WEATHER RADAR
MODEL:
WR2120
TYPE:
www.furuno.com
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  • Page 1 S2E-17-0209_IM_WR2120_C INSTALLATION MANUAL WEATHER RADAR MODEL: WR2120 TYPE: www.furuno.com...
  • Page 2 S2E-17-0209_IM_WR2120_C SAFETY INSTRUCTIONS The operator and installer must read the appropriate safety instructions before attempting to install or operate the equipment. Indicates a hazardous situation which, if not avoided, will result in DANGER death or serious injury. Indicates a potentially hazardous situation which, if not avoided, WARNING could result in death or serious injury.
  • Page 3 Code No.: 100-266-890-10 WR2120 restrictions There are restrictions frequency band as follows to use at Switzerland, Lithuania and Slovakia. Operate the WR2120 using one of the following four channels: CH1: 9422.5MHz, CH2: 9427.5MHz, CH3: 9432.5MHz, CH4: 9437.5MHz POWER SUPPLY LABEL...

  • Page 4: Table Of Contents

    S2E-17-0209_IM_WR2120_C TABLE OF CONTENS SAFETY INSTRUCTIONS ........i 7.7. Uninstall the Software ....... 39 7.8. Conclusion ........39 1. SYSTEM SUMMARY ........1 8. Outline Drawing ......... 40 1.1. Type of Radar Bands ......1 9. System Diagram ......... 44 1.2.

  • Page 5: System Summary

    S2E-17-0209_IM_WR2120_C 1. SYSTEM SUMMARY RADAR (Radio Detection and Ranging) developed during World War II as a method to detect the presence of ships and aircraft (the military considered weather targets as noise). Since WWII, there have been many advances in radar technology (e.g., Doppler techniques). It is used on land, sea, and in space for both research and operational needs.

  • Page 6: Anatomy Of Weather Radar

    S2E-17-0209_IM_WR2120_C 1.2. Anatomy of Weather Radar Radome Sub reflector Antenna 70km Receiver Transmitter The main purpose of the antenna is to focus the transmitted power into a small pencil Antenna: beam and also to receive and collect the returned signal. Protects the antenna from high winds, dusts, and rain.

  • Page 7: Mechanical Operation

    The single X-band weather radar can be difficult to avoid problems with blind areas due to buildings, mountains or strong signal extinction by heavy rain. Furuno provide multi-radar system that consists of three radar systems. While two radar systems are detecting and tracking rain clouds and observing their movements, the other one is working as RHI sector scan mode at high speed and cutting through the clouds to observe their internal structures.

  • Page 8: Side Lobe

    FURUNO radar Conventional radar Figure 1.3: Image of using 3 radars Figure 1.4: FURUNO radar detects cumulonimbus cloud faster than conventional radar 1.5. Side Lobe The energy radiated from an antenna forms a field having a definite radiation pattern. A radiation pattern is a way of plotting the radiated energy from an antenna.
  • Page 9 S2E-17-0209_IM_WR2120_C Beam width Main lobe Beam width Front to back ratio Side lobe -20dB ratio Front to back ratio Radartutorial.eu Figure 1.5: Antenna pattern in a Figure 1.6: The same antenna pattern in a polar-coordinate graph rectangular-coordinate graph Figure 1.7 shows the high level echo that appears side lobes.

  • Page 10: Location Of Radar Installation

    S2E-17-0209_IM_WR2120_C Suppression Ratio Range Side Lobe Figure 1.8: Ideal Condition Figure 1.9: Actual Condition Main beam 0.62m -3deg Main lobe Return produces ground clutter Main lobe threshold: -20dB Figure 1.10: Distance of main lobe 1.6. Location of Radar Installation 1. Confirm the observed region in relation the topography features: In this example the radar must cover an altitude of 1500 meters maximum and a 70km distance radius within the rainfall forecast area.

  • Page 11: Radar System Certificate

    S2E-17-0209_IM_WR2120_C 4. Survey antenna surroundings: Ensure no interference to any surrounding antenna (e.g.: Broadcast, mobile (cell) phone station, radio, BS/CS, etc.) and no obstacles should be around the antenna. Moreover, secure a service space of 1 m or more around the antenna. In addition, strong reflections can damage the receiver if there are obstacles nearby.

  • Page 12: Requirement Of Calibration

    S2E-17-0209_IM_WR2120_C 1.8. Requirement of Calibration Calibration is the activity of checking or measuring and comparing with a specific standard reference instrument. It may also include adjustment of the system to bring it into alignment with the standard. 1.9. Peripheral Devices External HDD (Hard Disk Drive): Useful for saving large amounts of data.

  • Page 13: Specifications

    S2E-17-0209_IM_WR2120_C 2. SPECIFICATIONS 2.1. Antenna Unit Parameter Descriptions Remarks Unit name WR2120-ATU Operating Frequency 9.4 GHz band Carrier Frequency Maximum range 70km Displayable observation level : 70km Max. ±64m/sec Doppler measurement 100 to 240VAC, Single Phase, Power supply 50/60 Hz...

  • Page 14: Signal Processing Unit

    S2E-17-0209_IM_WR2120_C 2.2. Signal Processing Unit Parameter Descriptions Remarks Unit name WR2120-SPU Rainfall intensity R (mm/h), Reflectivity factor Zh (dBZ), Doppler velocity V (m/s), Doppler velocity spectrum width W (m/s), Data Output Cross polarization difference phase φdp (deg), Specific differential phase KDP (deg/km), Co-poral correlation coefficient ρHV, Differential reflectivity...

  • Page 15: Data Processing Unit

    Hardware Parameter Descriptions Unit name WR2120-DPU 100t to 125VAC, 50/60Hz Note: Bundled AC power cable (Socket IEC C13 / Plug type B) is only for US Power supply and Japan. Do not use the bundled cable in other area, it may cause fire or damage the equipment.

  • Page 16: Accessories

    S2E-17-0209_IM_WR2120_C 2.4. Accessories Cables & Tube Antenna Unit (radome) --- Signal Processing Unit Items Descriptions Length 100Base-T (STP Cat5e or better), Length depends on (*1) LAN cable measure value. Incl. LAN connector w/ cover Shielded VCTF 2sq 3core or equivalent (*1) AC Power cable Incl.

  • Page 17: Construction Materials List

    S2E-17-0209_IM_WR2120_C 2.5. Construction Material list (Local contractor/client supply) Cables & Tube Signal Processing Unit --- Data Processing Unit Items Descriptions Length 1000Base-T (STP Cat5e or better), Length depends on LAN cable by measure measure value. Incl. LAN connector w/ cover Shielded VCTF 2sq 3core or equivalent.

  • Page 18: Prior Confirmation

    S2E-17-0209_IM_WR2120_C 3. PRIOR CONFIRMATION 3.1. Confirmation Items The mount plate must be installed properly for Antenna Unit (radome). Power cable (AC100V-240V) must be routed safely. Power cable gauge should be selected depending on its length. Frequency of AC power source must be 50Hz or 60Hz sine wave and single-phase current. All engineers must wear safety appliances including helmet and safety shoes during an installation of Antenna Unit.

  • Page 19: Peripherals Equipment

    S2E-17-0209_IM_WR2120_C 3.5. Peripherals Equipment It has to be prepared by the local contractor or client supply. 1. Wired router Router is using for internet purposes. Function Connect with an external network WAN port 1000BASE-T, 1 port, MDI/MDI-X auto switch LAN port 1000BASE-T, 4 port or more, MDI/MDI-X auto switch Input voltage AC100V-240V, Single phase, 50/60 Hz...

  • Page 20: Precautionary Item

    S2E-17-0209_IM_WR2120_C 4. PRECAUTIONARY ITEM 1) Use only single phase 100-240VAC commercial power supply. 2) DO NOT overhaul or modify. 3) DO NOT work on during electrical storm. 4) DO NOT scratch, cut, forcedly bend, pull, twist, bundle, or damage the power cable. Also do not put heavy items on top or around.

  • Page 21: Construction

    S2E-17-0209_IM_WR2120_C 5. CONSTRUCTION During the environmental survey all installation places for DPU, cables, pipes, and mounting plate should be carefully considered. 5.1. Antenna Unit This radar can be divided into 3 parts as shown below. [mm] Base of radome Top part of radome Internal unit 5.1.1.
  • Page 22 S2E-17-0209_IM_WR2120_C 2) Remove internal unit from the base of radome by completely removing M8 hexagon head bolts and M16 hexagon head bolt set. The internal unit will get damaged if placed directly on the floor without removing the M16 hexagon head bolts. It may also damage them if placed on the floor with M16 high hex nut loosened.

  • Page 23: Method Of Transport

    S2E-17-0209_IM_WR2120_C 5.1.2. Method of transport Hold flange area of radome when lifting by hand. Do not hold the box connector 5.1.3. Lifting tool Rotate lifting tools from storage (shipping) position to installation position before using it. Note: Do not loosen the M16 high hex nuts. * If these are loosening, the internal unit may be damage while lifting.

  • Page 24: Mount The Antenna Unit

    S2E-17-0209_IM_WR2120_C 5.1.4. Mount the antenna unit Example: Using a frame type of radar stand to mount the Antenna Unit. Use 4 M16 bolts to adjust level while installing the radar stand. See Figure 5.2. Radome M16 bolt M16 hex nuts Radar stand [mm] connector...

  • Page 25: Leveling The Antennaunit

    S2E-17-0209_IM_WR2120_C 5.1.5. Leveling the antenna unit Radome Radar stand Flat washer Hex bolt Internal unit’s base Radome Flat washer High hex nut Lifting tool Flat washer Split lock washer Hex nut Flat washer (L) [mm] Radar stand Fig. 5-1: Under the radar Flat washer Split lock washer Hex nut 3pcs...
  • Page 26 S2E-17-0209_IM_WR2120_C Confirm all four hex nuts that are securely tightened and without having any strain to radome or stand after leveling the radar. (1) Hex nut, (2) flat washer (L) and (3) radar stand should not have any gap when tightening the (4) Hex nut. (1) Hex nut (2) Flat washer (L) (3) Radar stand...

  • Page 27: Open The Radome Temporary

    S2E-17-0209_IM_WR2120_C 5.1.6. Opening the radome temporary When open radome temporary, please use long tension bolts to secure top of radome for maintenance work if it is not possible to remove the top radome. One set of tension bolts is in the maintenance tool box.
  • Page 28 S2E-17-0209_IM_WR2120_C 1. Loosen the 12, M10 bolts that attach the bottom of radome. This M10 bolt has a detent structure, loosen the bolt until it moves freely up and down. The bolt will come out if keep turning it loosen. The missing bolt can be replaced by putting the bolt in a smaller side of hole and tighten it.
  • Page 29 S2E-17-0209_IM_WR2120_C This φ12 hole is used for aligning the maintenance bolt to the nut insert. Figure 5.4: After rotating top of radome 3. Normally 4 maintenance bolts will be enough while windless. It can insert up to 8 bolts to set radome stable against the wind conditions.
  • Page 30 S2E-17-0209_IM_WR2120_C 5. Lift the radome top until spring clamp contacts 6. Remove spring clamp from bottom of radome the radome base flange. and reattach it at top of the flange. 7. Check antenna orientation. If the antenna is facing at horizontal direction, then rotate the antenna to a counter weight down to face up around at 90 degrees (upward).
  • Page 31 S2E-17-0209_IM_WR2120_C 10. For reducing from the wind-induced movement, fasten the spring clamp above the base flange and tighten bottom nut by hand. * Do not damage the radome gasket when fasten the spring clamps. * Use the spring clamp properly as examples shown below. Figure 5.6: Fasten properly by spring clamp...

  • Page 32: Box Connector

    S2E-17-0209_IM_WR2120_C 5.1.7. Box connector Parts of the box connector for protecting tube. It is water and dust resistance product (IP55). Tube Lock Gasket Gasket Remove a cap. Protecting tube Cut protecting tube neatly Do not use with uneven edges It must be flat Gasket Note: Tighten up the disuse box connector with a cap inside.
  • Page 33 S2E-17-0209_IM_WR2120_C 2. Connect LAN cable for MONI-CON and SPU MONI-CON LAN connector SPU LAN connector Fix AC power cable 3. Wire the power filter Caution: Make sure all electric current is off. 1) Fix / Connect AC power cable (3pin) 2) Confirm wiring on the circuit diagram of power filter label before connecting.
  • Page 34 S2E-17-0209_IM_WR2120_C 5．Cover the top of radome - Fix the bottom part of radome by 12 pcs of M10x35 stopper hexagon Bolt. These are using a dropout prevention fixed bolts. 12xM10 Stopper Hex bolt Open/Close radome 6. Protective tube connection Every location must have to measure a length in between ATU  SPU  DPU for adjusting the length of protective tube.

  • Page 35: Signal Processing Unit

    S2E-17-0209_IM_WR2120_C 5.2. Signal Processing Unit (Store into storage box) 1. Fix the storage box on the ground or fixed In a case of using steel using M10 bolt x4pcs. M10 bolt and nut to fix on steel M10 bolt M10 bolt stand.
  • Page 36 S2E-17-0209_IM_WR2120_C 4．Pull outdoor cable into protective tube (10 pcs) Cables pull between SPU and DPU Protective Tube 1 (P1): AC power cable (3pin) LAN cable x2 Cables pull between SPU and ATU (radome) Protective Tube 2 (P2): AC power cable (3pin) Control cable (both end HDR-26pin connector) Control cable (both end HDR-14pin connector) LAN cable x1...

  • Page 37: Data Processing Unit

    S2E-17-0209_IM_WR2120_C 5.3. Data Processing Unit 1. Setup Data Processing Unit (1) Connect DC power cable of DPU-PS to DPU. (2) Connect AC power cable to DPU-PS and connect AC power cable to electrical outlet. Note: Power “ON” ATU first and then power “ON”...

  • Page 38: Initial Setting Of Azimuth

    S2E-17-0209_IM_WR2120_C 6. INITIAL SETTING OF AZIMUTH The installed radar orientation and actual geographical azimuth are normally different causing an incorrect initial echo indication. An azimuth adjustment is required for proper echo orientation. Determine actual radar antenna azimuth (see orientation diagram below) and then determine geographical azimuth by using a magnetic compass (It is necessary to convert it from magnetic azimuth) , GPS heading system or solar measuring tool.
  • Page 39 S2E-17-0209_IM_WR2120_C <Image screen> 1. Setup antenna elevation up to 5 degrees. 2. Ensure only the higher mountain radar echoes are displayed exclude surrounding buildings. 3. Determine correct echo indication azimuth using echo characteristics and mountain location on map. Zh echo Elevation 5 degree Range 10km No.32 P0N transfer...

  • Page 40: Antenna Pointing Adjustment

    (Windows needs to restart after installation). “Solar_position.exe” and “Antenna_position_analysis.exe” will install into DPU. - If software does not exist in DPU, please contact Furuno directly for assistance. 7.2. DPU Time Setting Set correct value for time zone, time, and date in Windows Process: Open [Control panel] ->...

  • Page 41: Antenna Position Analysis

    S2E-17-0209_IM_WR2120_C 7.4. Antenna Position Analysis Operation 1. Click “Antenna_pointing_Analysis.exe” on your DPU desktop or installed folder to start software. 2. Drag & Drop the observed data folder icon (observed from solar_position) into [Radar_data_path] or click folder icon to choose the data folder. 3.

  • Page 42: Antenna Pointing Adjustment

    S2E-17-0209_IM_WR2120_C 7.6. Antenna Pointing Adjustment Adjust the antenna using solar measurement when installing the radar, after maintenance, or repair the antenna drive system. The following information explains the process of adjusting antenna using dedicated software. Requirements for use: 1) The weather at radar site area must be clear and/or sunshine. (Clouds, rain and any obstacles prevent proper adjustment) 2) ATU must be installed horizontally.

  • Page 43: Uninstall The Software

    S2E-17-0209_IM_WR2120_C 6. Drag & Drop a folder (sppi_before, sppi_after, rhi_before, rhi_after) into [Antenna_position_analysis.exe] to check the graph. - Refer to section 7.4 for instructions. - Solar radiation spectrum has difficulty to check when sun is blocked by clouds or position of sun is poor during scan. After offset Before offset adjustment...

  • Page 44: Outline Drawing

    S2E-17-0209_IM_WR2120_C 8. OUTLINE DRAWING 1) Antenna Unit...
  • Page 45 S2E-17-0209_IM_WR2120_C 2) Signal Processing Unit (Storage box)
  • Page 46 S2E-17-0209_IM_WR2120_C 4) Data Processing Unit...
  • Page 47 S2E-17-0209_IM_WR2120_C 5) Data Processing Unit (DPU Power Supply)

  • Page 48: System Diagram

    S2E-17-0209_IM_WR2120_C 9. SYSTEM DIAGRAM RJ45 RJ45 TX IF TX IF Rx IF H Rx IF H Keyboard Mouse Rx IF V Rx IF V USB3.0 USB3.0 AC IN HDMI AC IN External HDD HDR_26pin PXI SIG RJ45 RJ45 RJ45 PXI SIG RJ45 HDMI RJ45...
  • Page 49 S2E-17-0209_IM_WR2120_C WR2120 Configuration:...

  • Page 50: Appendix

    S2E-17-0209_IM_WR2120_C APPENDIX: A. LIGHTNING PROTECTION ASSESSMENT 1. Introduction This document outlines lightning protection based on the international standard IEC (International Electrotechnical Commission) 62305 series. The series consists of four documents as shown below: IEC 62305 series: Protection against lightning IEC 62305-1:2010 Part 1: General principles IEC 62305-2:2010 Part 2: Risk management IEC 62305-3:2010 Part 3: Physical damage to structures and life hazard IEC 62305-4:2010 Part 4: Electrical and electronic systems within structure...
  • Page 51 S2E-17-0209_IM_WR2120_C Identify the structure to be protected Identify the types of loss relevant to the structure For each type of loss, identify and calculate the risk components R > R Structure protected Protection needed Is LPS installed? Calculate new values Are SPM installed? of risk components >R...
  • Page 52 S2E-17-0209_IM_WR2120_C 2.2. Assessment of Risk Components Each risk component , consists may be expressed by the following general equation: where is the number of dangerous events per annum is the probability of damage to a structure is the consequent loss The number of dangerous events is affected by lightning ground flash density ( ) and by the...
  • Page 53 S2E-17-0209_IM_WR2120_C 2.2.2. Assessment of annual number of dangerous events According to the statistic information provided by the National Environment Agency of Singapore, average thunderstorm days per year ( ) at Changi is 168. The lightning ground flash density will be leaded as follows: 2.2.2.1.
  • Page 54 S2E-17-0209_IM_WR2120_C The collection extends to a line located at a distance of 500 m from the perimeter of the structure: where length L and width W of the structure are expressed in meter. Therefore the will be leaded as follows: 2.2.2.3.
  • Page 55 S2E-17-0209_IM_WR2120_C 2.3. Risk Assessment Conclusion Values of the risk components for the unprotected structure are reported in the regulation. The public service loss (L2) and the economic loss (L4) are relevant for this type of structure. It is required to evaluate the need for protection. This implies the determination of the risk for L2 and risk for L4 with the risk components...
  • Page 56 S2E-17-0209_IM_WR2120_C 3. Solution: Ways to make a current installation safer Lightning protection level definition Lightning protection level (LPL) is defined in the regulation based on peak current. LPL will be selected for installation situations where LPL IV is generally used. Protection area will be made using rolling sphere, its radius is determined in the Table A-7.
  • Page 57 S2E-17-0209_IM_WR2120_C 3.2. Modification Plan As shown in Table A-6 the current condition is not enough to protect the weather radar. We would propose the following modification plan to protect the weather radar. 3.2.1. Extend existing lightning rod We installed new lightning rod to protect the radar, but it is due to some restrictions.
  • Page 58 S2E-17-0209_IM_WR2120_C 3.2.2. Add extra lightning rod This is an example of adding a lightning rod to compensate for existing lightning rod limitations: It is installed next to a chimney, 8 meters away from the radar. In this case the chimney is fixed, therefore it is better to install a new lightning rod as shown in Figure A-4.
  • Page 59 S2E-17-0209_IM_WR2120_C Table A-9: Height requirement for the new lightning rod Height LPL Condition 7.305 m 5.475 m 4.472 m 4.0 m 4. Protection of Structures Against Lightning 4.1. Old lightning and angle of protection standard Old standard stated the protection angle of lightning rods for protecting of people from lightning, electrical facilities, petroleum complexes, gas tanks, plant, and equipment was 60º...
  • Page 60 S2E-17-0209_IM_WR2120_C 4.2. New standard lightning and angle of protection Lightning rod height and protection efficiencies were revised when IEC standards were renewed in 2003, replacing the older 1990 standard. The angle of protection decreases as the height of protected structure gets higher. Any protection level of structure over 60 meters will not be enacted in the protection angle because a lightning rod is ineffective for buildings over 60 meters when a side-on lighting strike hits side of a building.

  • Page 61: B: Communication Network

    S2E-17-0209_IM_WR2120_C B. COMMUNICATION NETWORK Radar needs an internet connection to provide remote maintenance service, main operation, and transfer of collected observation data. There are several types of communication network in the world. Only the following types are fast enough to support proper radar operations. 1) Cable (Broadband Internet Connection): Through the use of a cable modem you can have a broadband Internet connection that is designed to operate over cable TV lines.
  • Page 62 S2E-17-0209_IM_WR2120_C 7) IoS (Internet over Satellite): It allows a user to access the Internet via a satellite that orbits the earth. A satellite is placed at a static point above the earth's surface, in a fixed position. Because of the enormous distances signals must travel from the earth up to the satellite and back again, IoS is slightly slower than high-speed terrestrial connections over copper or fiber optic cables.

  • Page 63: C: Storage Media

    S2E-17-0209_IM_WR2120_C It also must setup the Subnetwork and Subnet mask. Address space of subnetwork is indicated by subnet mask. Ex. Subnet mask is 255.255.255.0, which supports 254 addresses. Regarding IP address, 0 indicates the network itself, 255 is a broadcast address. In this case it can use xxx.xxx.xxx.1 to xxx.xxx.xxx.254 Router Switching Hub...

  • Page 64: D: Ups Setting

    S2E-17-0209_IM_WR2120_C D. UPS SETTING Try to prepare a high function UPS to avoid PC data loss during power outages and immediate shutdown that damage the internal circuitry of the PC mainly hard disk. There is a function to send a command to shut down the PC before run out of UPS battery.

  • Page 65: E: Teamviewer

    Computer name: Enter location’s name And then click [OK] and then click [Exit] 123 456 789 3. After installed software, please inform “Your ID” to the headquarter of Furuno who is in charge. 4. Use other DPU to confirm remote access by TeamViewer.
  • Page 66 S2E-17-0209_IM_WR2120_C 2. Uninstallation Change the login user to the “Control” account. (See the password from APPENDIX A.2. in the operator’s manual) 2) If TeamViewer icon is in the task bar, click “Exit Teamviewer” to close the software. 3) From the Start Menu, select Control Panel. 4) Under Programs click the Uninstall a Program link.
  • Page 67 S2E-17-0209_IM_WR2120_C ･FURUNO Authorized Distributor/Dealer FURUNO ELECTRIC CO., LTD 9-52 Ashihara-cho, Nishinomiya, 662-8580, Japan Issued: December 2018 Printed in Japan All rights April 2019 Latest issued: reserved...

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