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Furuno FAR-2167DS-D Marine RADAR User Manual

1. FURUNO OPERATOR S MANUAL MARINE RADAR MODEL FR 7062 7112 7252 p FURUNO ELECTRIC CO LTD NISHINOMIYA JAPAN FURUNO ELECTRIC CO LTD 9 52 Ashihara cho Nishinomiya 662 8580 JAPAN Telephone 0798 65 2111 Fax 0798 65 4200 All rights reserved Printed in Japan Pub No OME 34590 YOSH FR 7062 7112 7252 ESF Elemental Chlorine Free The paper used in this manual is elemental chlorine free FURUNO Authorized Distributor Dealer FIRST EDITION APR 1998 H1 JAN 19 2006 00080819803 OMES4590H10 SAFETY INSTRUCTIONS DANGER Stay away from transmitting antenna The radar antenna emits microwave radiation which can be harmful to the human body particularly the eyes Never look directly into the antenna radiator from a distance of less than 1 m when the radar is in operation Radio Frequency Radiation Hazard The radar antenna emits electromagnetic radio frequency RF energy which can be harmful particularly to your eyes Never look directly into the antenna aperture from a close distance while the radar is in operation or expose yourself to the transmitting antenna at a close distance Distances at which RF radiation levels of 100 and 10 W m exist are given in the table below Note If the antenna unit is installed at a close distance in front of the wheel house your administration may require halt of transmission within a certain sector of antenna rev
2. NAV data and ARPA data can be NC AUTORU displayed individually or together Suppresses electrical noise Selects radar range RANGE Adjusts display brilliance BRILL MODE Long press Doubles size of area between your vessel and location selected by cursor Short press Shifts your vessel s position to cursor location SHIFT ZOOM GUARD ALARM ECHO TRAIL OFFSET EBL 1 VRM 1 Displays target movement in afterglow ITI UJ 2 VRM 2 Turns corresponding EBL on off ELECT CANCEL T L Long press Terminates plotting of the target selected with cursor T Short press Displays the data of target selected with the cursor T ACQ ENTER MENU 1 Acquires the target selected with the cursor T 2 Registers selection on menus Default switch function T Requires ARP 10 option Control Adjusts sensitivity of radar receiver Switch Temporarily erases heading marker and north marker if displayed Control Reduces sea clutter Switch Automatically reduces sea and rain clutters Control Reduces rain clutters Switch Enlarges echoes Selects presentation mode among HU CU NU and TM Sets cancels guard alarm silences audible alarm Measures range and bearing between two targets predicts collision course Turns corresponding VRM on off Long press Outputs target data position data to plotter Short press Alternately di
3. 1 GENERAL 1 Indication System PPI Daylight display raster scan 8 tones in monochrome 2 Range Pulselength PL amp Pulse Repetition Rate PRR range max FR 7062 64 nm FR 7112 72 nm FR 7252 96 nm Range nautical miles PL pm 0125 025 os 1 Jis 2 s joie oa so 48 64 72 96 SP 0 08 ns ERR won ows TE j l Oo 550 Hz on 48 nm to 72 nm range or 500 Hz on 96 nm range 3 Range Resolution Better than 20 m 4 Bearing Discrimination XN12A within 1 99 XN13A within 1 29 5 Minimum Range 25 m 0 25 NM range 6 Bearing Accuracy Within 19 7 Range Ring Accuracy 0 9 of range or 8 m whichever is the greater 2 SCANNER UNIT 1 Radiator Slotted waveguide array 2 Polarization Horizontal 3 Antenna Rotation Speed 24 rpm nominal XN12A 100 kt max XN13A 100 kt max 48 rpm nominal XN12A 70 kt max 4 Radiator Length XN12A 120 cm 180 cm 5 Horizontal Beamwidth 2 1 9 1 2 6 Vertical Beamwidth 22 7 Sidelobe Attenuation XNI2A Within 320 of main lobe less than 24 dB Outside 320 of main lobe less than 30 dB XNI3A Within 10 of main lobe less than 24 dB Outside 410 of main lobe less than 30 dB 3 TRANSCEIVER MODULE 1 Frequency 9410 MHz 30MHz X band 2 Modulation PON 3 Peak Output Power FR 7062 6 kW FR 7112 12 kW FR 7252 25 kW 4 Modulator FET Switching Method SP
4. Congratulations on your choice of the FURUNO 7062 7112 7252 Marine Radar We are confident you will see why the FURUNO name has become synonymous with quality and reliability For over 40 years FURUNO Electric Company has enjoyed an enviable reputation for innova tive and dependable marine electronics equip ment This dedication to excellence 15 furthered by our extensive global network of agents and dealers Your radar 15 designed and constructed to meet the rigorous demands of the marine environ ment However no machine can perform its intended function unless properly operated and maintained Please carefully read and follow the recommended procedures for operation and maintenance We would appreciate hearing from you the end user about whether we are achieving our pur poses Thank you for considering and purchasing FURUNO equipment Note In this manual N type means Nether lands specification radar vi Features Your radar has a large variety of functions all contained in a remarkably small cabinet The main features of the model 7062 are e Traditional FURUNO reliability and qual ity in a compact lightweight and low cost radar Durable brushless antenna motor On screen alphanumeric readout of all op erational information e Standard features include EBL Electronic Bearing Line VRM Variable Range Marker Guard Alarm Display Off Center and Echo Trail Watchman
5. Index A ji Xee U amp TR C 6 4 A C RAIN eem RH 2 5 PUG SEA rr 2 4 6 2 Bearing 2 7 Blind Sectors wis ves 4 4 iW side RETE 2 4 3 8 C S01 28 2 6 6 6 2 7 Ts 2 7 Echo 4 TETTE 2 6 mer eM MR 3 4 Echonomy Mode 2 3 F Function 3 8 WU 5 1 G i NERONE 2 4 Guard Alarm MRTRTRRRRRRSERS 3 4 Guard zone 3 4 H Head m 2 6 Heading 2 6 mdex LING 3 1 Indirect Echoes 4 2 Interference eee 3 2 L Lost Targel GIA dt pud 6 6 M Magnetron 9 3 Multiple Echoes 4 1 MENU TREE vii N Navigation Data 2 3 3 3 Ee cR TUR 3 8 North Marker 2 6 NONM UD m 2 6 O OTHER MENU een 3 7 Offcenter RR 2 9 Offset EBL 2 8 P Presentation Mode 2 6 Preventitive Maintenance 5
6. 1 5 Intermediate Frequency 60 MHz 6 Tuning Automatic or manual for manual select manual tuning on menu and tune by trackball 7 Receiver Front End MIC Microwave IC 8 Bandwidth Tx pulselength 0 08 sand 0 3 5 25 MHz Tx pulselength 0 8 s 3 MHz 9 Duplexer Circulator with diode limiter 4 DISPLAY UNIT 1 Indication System PPI Daylight display raster scan 8 colors 2 Picture Tube 12 inch rectangular 184 mm x 245 mm monochrome CRT effective display area more than 180 mm 3 Range Range Interval Number of Rings range max 7062 64 nm 7112 72 nm FR 7252 96 nm Rame NM 0125 025 os 075 1 132 3 46 8 1216 24 36 48 6472 96 Ring Interval NM 0 0625 0 125 0125025 0250505 1 1 2 2 3 6 1212 16 18 24 4 Markers Heading Line Bearing Scale Range Rings Variable Range Marker VRMI VRM2 Electronic Bearing Line EBL1 EBL2 Tuning Bar Cursor Parallel Cursor Alarm Zone Waypoint Mark navigation input required North Mark heading sensor input required 5 Alphanumeric Indications Range Range Ring Interval Pulselength SP MP LP Display Mode HU CU NU TM Interference Rejection IR 1 IR2 IR3 Variable Range Marker VRM1 VRM2 Electronic Bearing Line EBL1 EBL2 Automatic A C SEA A C AUTO Stand by ST BY Radar Alarm G IN G OUT G ACKN Echo Stretch ES1 ES2 Cursor Range Bearing or L L Position Echo Tailing TRAIL Trailing Time Trailin
7. Each radar pulse received causes it to transmit a response which is swept repetitively across the complete radar frequency band When interrogated it first sweeps rapidly 0 4 usec through the band before beginning a rela tively slow sweep 7 5 usec through the band back to the starting frequency This process is repeated for a total of twelve complete cycles At some point in each sweep the SART frequency will match that of the interrogating radar and be within the pass band of the radar receiver If the SART is within range the frequency match during each of the 12 slow sweeps will produce a response on the radar display thus a line of 12 dots equally spaced by about 0 64 nautical miles will be shown When the radar to the SART is reduced to about 1 n miles the radar display may show also the 12 respopnses generated during the fast sweeps These additional dot responses which also are equaly spaced by 0 64 nautical miles will be interspersed with the original line of 12 dots They will appear slightly weaker and smaler than the original dots Screen A When SART Screen B When SART is distant 15 close Hadar antenna beamwidth AJ a SART mark length 9200 MHz 3 Sweep m bandwidth 95 us A Low frequency sweep signal Sweep starting Fast sweep signal Showing SART marks on the radar display To show the SART marks only on the radar display detune the radar receiver by the ma
8. MAINTENANCE amp TROUBLESHOOTING This chapter tells you how to keep your radar in good working order Before reviewing this chapter please read the safety information which follows A DANGER Turn off the power before performing any maintenance or troubleshooting procedure Hazardous voltages can shock bum or cause death Only qualified personnel totally famillier with electrical circuits should work inside the units RF RADIATION HAZARD The radar scanner emits high frequency radio radiation which can be harmful particularly to your eyes Never look directly into the scanner from a distance of less than two feet when the radar is in operation as you could injure the cornea of your eyas Always make sure the radar is set to stand by or is turned off before starting work on the scanner unit 5 1 Preventive Maintenance Regular maintenance is important for good performance Always keep the equipment as free as possible from dirt dust and water splashes Make sure all screws securing the components are properly tightened A maintenance program should be established and should at least include the items listed in Table 5 1 5 2 Replacing the Fuse The fuse in the fuse holder at the back of the display unit protects the equipment against reverse polarity of ship s mains overcurrent and equipment fault If the fuse blows find the cause before replacing it Never use an incorrect fuse serious damage to the equip
9. screen The symbol of the selected target gets twice as large as the normal circle The data in cludes the following RNG BRG Range Bearing Range and bear ing from own ship to the last plotted or selected target position with suffix T True or M Magnetic For true bearings suffix T 1s used in case of gyrocompass input and suffix M is used in case of magnetic compass input Note M is not displayed on N type radar COURSE SPEED Course Speed Course and speed are displayed for the last plotted or selected target with suffix T True or M Magnetic For true bearings suffix T 1s used in case of gyrocompass input and suffix M 15 used in case of magnetic compass input Note M is not displayed on N type radar Closest Point of Approach The clos est range a target will approach to own ship Do not confuse it with the operator preset CPA alarm limit TCPA The time to CPA measured with present speeds of own ship and the targets Both CPA and are automatically calculated When a target ship has passed clear of own ship the CPA 1s displayed and the TCPA appears as ses is counted up to 99 9 min and beyond this it is indicated as TCPA gt 99 9 min 6 5 6 8 Mode and Length of Vectors True or relative vector Target vectors are displayed in relative or true mode Own ship does not have a vector in rela tive mode Vector length From the ARP 10 MENU Vector
10. 24 36 48 64 72 96 2nd Rej Off On Self Test Installation Setup Default setting Maximum range FR 7062 64 FR 7112 72 FR 7252 96 T Not available on N type radar SYSTEM CONFIGURATION Scanner Unit FR 7062 XN12A RSB 0070 059 I XN13A RSB 0070 059 XN12A RSB 0073 059 FR 7112 XN12A RSB 0072 060 XN13A RSB 0072 060 XN12A RSB 0073 060 FR 7252 XN12A RSB 0072 061 XN13A RSB 0072 061 XN12A RSB 0073 061 Navigation IEC 1162 In Out Display Unit RP 110 device FR 7062 7112 RDP 122 MR HT FR 7252 RDP 123 IEC 1162 In Out Video Sounder E Slave Display FMD 811 8010 Gyro Gyro Converter ___ compass 0 100 1 Auto External Alarm ARP 10 Buzzer OP03 21 Integrated Heading Sensor PG 1000 __ TT gt i CVD Converter E Remote Display Equivalent to NMEA 0183 RP 6065B FMD 1800 Option Apnd MM MEE Rectifier TRU 1746B 2 is available for FR 7252 cn RU 3423 using XN12A 48 rpm and XN13A RU 1746B 2 Available with 24 rpm antenna only 115 230 FR 7062 7112 12 24 32 19 50 60 Hz FR 7252 24 32 VDC This page is intentionally left blank 1 PRINCIPLE OF OPERATION 1 1 What is Radar The term is an acronym meaning RAdio Detection And Ranging Although the basic principles of radar were developed dur ing World War I
11. 360 degrees with the guard alarm function Press the MENU key Select OTHER MENU Press the ACQ ENTER key select 13 Watchman A W N Operate the trackball to select watchman rest period 5 minutes 10 minutes or 20 minutes 7 Press the ACQ ENTER key 8 Press the MENU key to close the menu WATCHMAN appears at the top of the screen the radar transmits for one minute to check for targets inside the guard zone and then the CRT shuts off and the radar goes into stand by Cancelling watchman Go into the OTHER MENU and set 13 Watchman for off Note 1 Watchman can be used without a guard zone Note 2 The alarm sounds just before the radar starts and stops transmitting 3 9 OTHER MENU Description The table below summarizes the OTHER MENU Table 3 2 OTHER MENU Description 1 Panel Dimmer Selects level of panel backlight 2 Mark Brill a brilliance of VRM EBL cursor guard zone and WP marks 3 HD Mark Selects brilliance of heading marker 4 Characters Selects brilliance of characters 5 Trail Tone Selects gradations of echo trails 6 Pulselength Selects pulselength for 1 5 and 3 mile ranges 7 Noise Reject Select to reject noise 8 Trail Time Selects the trail time 9 Tune Selects automatic or manual tuning To tune manually 1 Select Manual by the trackball 2 Press the ACQ ENTER key to enable manual tuning 3 Whil
12. European Parliament and of the Council of 9 March 1999 on radio equipment and telecommunications terminal equipment R amp TTE Directive and satisfies all of the following rules technical standards and recommendations applicable to the product EN 60945 1997 01 IEC 60945 Third edition 1996 11 IEC 60936 1 Amendment 1 Annex D 2002 06 ITU R R Appendix 53 Table 2 ITU R M 1177 3 2003 06 ITU R SM 1539 2002 11 ITU R SM 1541 2002 11 ITU R SM 329 9 2003 02 and or number and date of issue of the standard s or other normative document s For assessment see e Statement of Opinion 00214133 AA 01 of 4 February 2004 issued by Telefication The Netherlands 3 Test report 96323020 of 20 August 1998 prepared by KTL Certification The Netherlands Test reports TI 1673 of 26 February 1998 K03 17 193 and K03 17 194 of 5 January 2004 prepared by Furuno Electric Co Ltd On behalf of Furuno Electric Co Ltd Hiroaki Komatsu Nishinomiya City Japan Manager February 17 2005 International Rules and Regulations Place and date of issue name and signature or equivalent marking of authorized person FURUNO ELECTRIC LTD UJ NS EN 9 52 Ashihara Cho Nishinomiya City 662 8580 Hyogo Japan Tel 481 798 65 2111 Fax 81 798 65 4200 Pub NO DOC 769 Manufacturer 9 52 Ashihara Cho Nishinomiya City 662 8580 Hyogo Japan Address declare under our sole responsibility that the pro
13. Position 3 8 Rotation Speed 1 1 3 35 Taco Rec 3 8 1 6 The Radar 1 1 2 BASIC OPERATION lo icai m 4 1 Multiple Echoes 4 MN a 4 2 Side lobe 4 lay 4 9 MNGITECL ECHOES 4 2 2 3 Turning the Radar 2 3 ad Shadow SAG ere orc 4 2 2 4 LESDSITHEUTI D 2 3 2 5 2 3 5 MAINTENANCE amp TROUBLE 2 6 Selecting the Range 2 4 SHOOTING 2 7 Adjusting Picture Brilliance 2 4 5 1 Preventive Maintenance 5 1 2 8 Adjusting Receiver Sensitivity 2 4 5 2 Replacing the 5 1 2 9 Adjus ng the A C SEA Control 5 3 Troubleshooting 5 2 une eer S SEES Self Test POMMES 5 3 s poeni dese 2 5 5 5 Life Expectancy of Magnetron 5 3 2 11 Selecting the Presentation Mode 2 6 6 ARP 10 OPTION 2 12 Erasing the Heading Marker Marke rne irte qute ath 2 6 CLOEDT ME 6 2 2 13 Magnifying Long Range Echoes 6 2 Keys Used for Auto Plotter 6 2 echo 2 6 6 3 Activating the Auto Plotter 6 3 2 14 Measuring the Range 2 7 6 4 Manual Acquisition 6 4 2 15 M
14. corresponding target symbol changes to a blinking triangle Note the preset limit is set at OFF a target which is on collision course will not pro duce an alarm Set Selects TCPA alarm limit Auto ACQ Turns on off Auto Acquisition Area 6 3 Activating the Auto Plotter ARP MENU Select item by T ball To activate the ARP 10 follow the steps shown and press ENTER key below B Display Off 2 All Cancel l Adjust the GAIN A C SEA and A C RAIN 3 Vector Ref Rel 4 Vector Length controls for proper radar picture 3min 2 Press the MENU key to open the main History menu 2min CPA Set 3 Operate the trackball to select 10 3nm MENU TCPA Set 4min 4 Press the ACQ ENTER key The menu Auto ACQ shown in Figure 6 1 appears 5 Operate the trackball to select the menu item Figure 6 1 ARP menu 1 Display 6 Operate the trackball to select 7 Press the ACQ ENTER key 8 Press the MENU key to close the menu Target is being tracked but is not selected for data readout Bw ois mes Threatening AUTO TARGET NX mur Target Full d target Mark Target selected for data reading large square Auto Acquisition Lost Target Mea tiny RO l oM nlla fada VRM 13 5 R 0 142NM BEARING 42 5 T COURSE 2878 TRUE VECTOR RANGE 536 SPEED 125KT 15 MIN CPA 2NM TCPA 12 35 ARPA Data A
15. on your own ship for example a stack In both cases the echo will return from a legiti mate contact to the antenna by the same indi rect path The echo will appear on the same bearing of the reflected surface but at the same range as the direct echo Figure 4 3 illustrates the effect of an indirect echo Indirect echoes may be recognized as follows they usually occur in a shadow sector they appear on the bearing of the obstruc tion but at the range of the legitimate con tact when plotted their movements are usually abnormal and their shapes may indicate they are not direct echoes Bor Indirect path Obstruction Antenna mast funnel etc Target True Indirect Indirect echo path EN Direct echo Heading line True echo 1 TRE Indirect Indirect echo echo Figure 4 3 Indirect echoes 4 2 4 4 Blind and Shadow Sectors Funnels stacks masts or derricks in the path of antenna may reduce the intensity of the ra dar beam If the angle subtended at the antenna is more than a few degrees a blind sector may be produced Within the blind sector small tar gets at close range may not be detected while larger targets at much greater ranges may be detected See Figure 4 4 Vessel taller than wharf Mast etc in path of radar beam Wharf Wharf Blind sector Size of blind sector depends on target size and range Figure 4 4 Blind and shadow sectors 9
16. range and bearing for a guard zone When ships islands landmasses etc violate the guard zone an audible alarm sounds and the offending target blinks to call the operator s at tention Selection of guard zone type The guard alarm can be set to sound when a target enters or exits the guard zone You can select which type of guard alarm you want through the menu In alarm The alarm sounds on targets entering the guard zone G INY appears at the top right hand corner when the In alarm 15 selected Out alarm The alarm sounds on targets exiting the guard zone OUT appears at the top right hand corner when the Out alarm 1s selected Dashed line i noalam L 1 1 s P gt 2 gt lt 7 7 Guard zone IN ALARM OUT ALARM Figure 3 8 In and Out alarm Setting a guard zone Preparation 1 Press the MENU key and then select OTHER MENU and press the ACQ EN TER key 2 Select 15 Guard Mode and In alarm on target entering zone or Out alarm on target exiting zone by operating the trackball 3 Press the ACQ ENTER key 4 Press the MENU key to close the menu To set a guard zone 1 Mentally create the guard zone you want to set For example the guard zone shown in Figure 3 9 1 2 Operate the trackball to set the cursor on point A or B Press the GU
17. 1 NO 5 3 Pulsewitdth erecto rea aene nn 2 4 minime Nr 2 4 R 2 4 Range Ring MTS 2 4 S SAR e A O iii Second trace echoes 3 8 NIST 5 3 purse pau 2 4 Shadow Sectors eene 4 2 Side lobe Echoes 4 1 LG OY eresi 2 3 T p 5w 3 8 Trail esses tae etes o bie 3 4 EASING Seo 2 3 Troubleshooting S 5 2 Turning On 2 3 V Vector length TERT 6 6 Vector mode esset testes ek En obe beta 6 6 iru m E 2 7 W Watcnman 3 6 2 2 9 IN 1 FURUNO ELECTRIC CO LTD E UJ ED 9 52 Ashihara Cho Nishinomiya City 662 8580 Hyogo Japan Tel 81 798 65 2111 Fax 81 798 65 4200 Pub NO DOC 767 Manufacturer 9 52 Ashihara Cho Nishinomiya City 662 8580 Hyogo Japan Address declare under our sole responsibility that the product X band radar Type FR 7062 Model name serial number is in conformity with the essential requirements as described in the Directive 1999 5 EC of the European Parliament and of the Council of 9 March 1999 on radio equipment and telecommunications terminal equipment R amp TTE Directive and satisfies a
18. 3 4 Selecting Pulsewidth Pulsewidth is the transmission time of a single radar pulse The longer the pulsewidth the greater the direction range capability however range accuracy and range resolution are re duced Pulsewidth can be selected to short or long on the 1 5 and 3 nautical mile ranges 1 Press the MENU key 2 Select OTHER MENU and press the ACQ ENTER key OTHERS Select item by T ball and press ENTER key Ell Panel Dimmer 1 2 Mark Brill 1 2 HD Mark 1 2 Characters 1 2 Trail Tone Multi Pulselength Short Noise On Trail Time 30sec min 3min i 15min 30min Tune Manual SSE amp WPT Mark EBL Ref VRM Unit 7 Watchman STBY Disp Guard Mode Own Position Cursor Posi Alm Sense LV Dead Sector Range 2v m e 3 lt 2 Ei 4 y 9 EN 2nd Rej Self Test Installation Setup On True km sm 5min 10min 20min Econo Nav Out TD L L Med Hig On TEN 16 m e n On 1 Not displayed on N type radar VRM unit is fixed for nm range is FR 7062 64 FR 7112 72 FR 7252 96 Figure 3 5 OTHER MENU 3 Select 6 Pulselength by operating the trackball 4 Select Short or Long by operating the trackball 5 Press ACQ ENTER key 6 Press the MENU key to close the menu 3 5 Displaying Navigation Data Navigation data can be displayed at the
19. ARD ALARM key G IN or OUT with aster isk blinking appears at the top right hand corner of the display See Figure 3 9 2 The asterisk indicates the guard zone is partially set 3 Operate the trackball to set the cursor on point C or D See Figure 3 9 3 4 Press the GUARD ALARM key The as terisk disappears See Figure 3 9 4 Asterisk blinking EN Guard zone E to set G IN A D B C Drag cursor here 1 Mentally create the guard zone to set 2 Drag cursor to top left corner of zone and press GUARD ALARM Y G IN Drag cursor here 3 Drag cursor to bottom right corner of zone and press GUARD ALARM 4 Guard zone completed Figure 3 9 How to set the guard zone Silencing the audible alarm Any radar targets violating the guard zone will trigger the audible alarm You can silence the audible alarm by pressing the GUARD ALARM key When this is done G ACKN replaces G IN This means the alarm is ac knowledged Press the key again to reactivate the alarm Cancelling the guard zone and alarm Press and hold down the GUARD ALARM key until the guard zone disappears 3 5 Notes on the guard alarm The alarm 15 a useful anti collision aid but does not relieve the operator of the respon sibility to also keep a visual lookout for pos sible collision situations When the radar range 15 less than one half of t
20. C 10A 24VDC 5A 32VDC 3 8A 70 XNI3AQArpm 12 VDC 10 8A 24VDC 5 4A 32VDC 4 1A 100 FR 7252 XNI2A 24rpm 24VDC 5 2A 32VDC 3 9A 100 XN12A 48rpm 24VDC 5 8A 32VDC 4 4A 70 XNI3AQArpm 24VDC 6 3A 32VDC 4 7A 100 kt 3 Power Consumption FR 7062 XNI2A 24rpm 70 W to 90 W 100 kt XNI2A 48rpm 85 W to 105 W 70 kt SP 3 XN13A 24rpm 80 W to 120 W 100 kt FR 7112 XN12A 24rpm 85 W to 100 W 100 kt XNI2A 48rpm 95 to 120 W 70 XN13A 24rpm 90 W to 130 W 100 FR 7252 XNI2A 24rpm 105 W to 125 W 100 kt XNI2A 48rpm 120 W to 140 W 70 kt XN13A 24rpm 115 W to 150 W 100 7 DIMENSIONS AND MASS See Outline Drawings 8 CORTING COLOR 1 Display Unit Panel N3 0 Chassis 2 5GY5 1 5 2 Scanner Unit N9 5 9 COMPASS SAFE DISTANCE 1 Display Unit Standard 1 1 m Steering 0 8 m 2 Scanner Unit FR 7062 7112 Standard 1 0 m Steering 0 8 m FR 7252 Standard 1 7 m Steering 1 3 m 10 ARP MODULE OPTION 1 Acquisition Range 0 2 to 16 NM 2 Tracking Range 0 1 to 16 NM 3 Maximum Number of Target 10 4 Acquisition Time Within 5 sec scanner rotation 24 rpm 5 Alarm Timing Lost target blink mark collision alert 6 Vector Length 30 sec 1 3 6 15 or 30 min selected on menu 7 Plotting Interval 15 30 sec 1 2 3 or 6 min selected on menu 8 Numeric Data Indication Distance Bearing Course Speed CPA TCPA 9 Acquisition Available Speed 100 kt relative 4
21. I echoes as an aid to naviga tion 15 not a new development 1 2 How Ships Determined Position Before Radar Before the invention of radar when running in fog near a rugged shoreline ships would sound a short blast on their whistles fire a shot or strike a bell The time between the origination of the sound and the returning of the echo indi cated how far the ship was from the cliffs or the shore The direction from which the echo was heard indicated the relative bearing of the shore 1 3 How Radar Determines Range Radar determines the distance to the target by calculating the time difference between the transmission of a radar signal and the reception of the reflected echo It is a known fact that ra dar waves travel at a nearly constant speed of 162 000 nautical miles per second Therefore the time required for a transmitted signal to travel to the target and return as an echo to the source is a measure of the distance to the tar get Note that the echo makes a complete round trip but only half the time of travel is needed to determine the one way distance to the target This radar automatically takes this into account in making the range calculation 1 4 How Radar Determines Bearing The bearing to a target found by the radar 15 determined by the direction in which the radar scanner antenna is pointing when it emits an electronic pulse and then receives a returning echo Each time the scanner rotates pulses are transmitt
22. Length can be set to 30 seconds 1 3 6 15 or 30 minutes and the selected vector time 1s indicated on the screen The vector tip shows an estimated position of the target after the selected vector time elapses It can be valuable to extend the vector length to evaluate the risk of collision with any target Past position display The ARP 10 displays equally time spaced dots maximum 5 dots marking the past positions of any targets being tracked If a target changes its speed the spacing will be uneven it changes course its plotted course will not be a straight line in TM mode Operational warnings There are two main situations which cause the ARP 10 to trigger visual and audible alarms e CPA TCPA alarm e Lost target alarm CPA TCPA alarm Visual and audible alarms are generated when the predicted CPA and TCPA of any target be come less than their preset limits The audible alarm continues for 10 seconds The ARP 10 continuously monitors the pre dicted range at the Closest Point of Approach CPA and predicted time to CPA TCPA of each tracked target to own ship When the predicted CPA of any target becomes smaller than a preset CPA alarm range and its predicted TCPA less than a preset TCPA alarm limit the ARP 10 releases an audible alarm In addition the target plot symbol changes to a triangle and flashes together with its vector 6 6 Provided that this feature is used correctly it will help preven
23. R key to confirm 5 Press the MENU key to close the menu PI indication appears next to EBL at the left bottom corner of the screen To turn the index lines off select Index Line off and press the ACQ ENTER key Rotating the index lines 1 Press the EBL 2 key to activate EBL2 2 Operate the trackball Adjusting the index lines interval 1 Press 2 key to activate VRM2 2 Operate the trackball 3 1 3 3 Suppressing Radar Interference Radar interference may occur when near another shipborne radar operating in the same frequency band as your radar Its on screen appearance 15 many bright dots either scattered at random or in the form of dotted lines extending from the center to the edge of the display Figure 3 4 il lustrates interference in the from of curved spokes Interference effects are distinguishable form normal echoes because they do not ap pear in the same place on successive rotations of the antenna Figure 3 4 Radar interference Four levels of interference are available includ ing off IRI IR2 IR3 and OFF IR3 provides the highest level of rejection 1 Press the MENU key 2 Select INT REJECT and press the ACQ ENTER key 3 Select level desired by pressing the ACQ ENTER key 4 Press the MENU key to close the menu IR and level selected appears at the bottom right corner on the display when the interference re Jection circuit 1s turned on 3 2
24. a timer displays the time remaining for warm up of the magnetron the device which produces radar pulses counting down from 1 30 to 0 01 2 00 to 0 01 for FR 7252 2 4 Transmitting After the power is turned on and the magnetron has warmed up STBY Stand By appears at the screen center This means the radar 1s now fully operational Press the STBY TX key to transmit When transmitting any echoes from targets appear on the display This radar displays ech oes in eight tones of green according to echo strength SPEED Speed 10 5 xi 125 n TRIP DEPTH Depth TO Waypoint bearing Heading Time to go to TO Waypoint OWPT TTG Bearing to TO Waypoint LON 135 00 00E Range to TO Waypoint 01 08 BRG 45 0 M RNG 12 0NM LAT 30 0 00N 2 5 Stand by When you won t be using the radar for an ex tended period but you want to keep it in a state of readiness place it in stand by by pressing the STBY TX key The display shows STBY default setting navigation data or goes into the economy mode You can select stand by condition on the menu More on menu operation later Economy mode The CRT can be set to automatically turn itself off when in stand by to reduce power consump tion This feature is called the economy mode When the economy mode is on the ECONOMY indication under STBY TX key lights Navigation data display during stand by I
25. argets Figure 3 7 How the echo trail feature works Note Trails are restarted when range or mode is changed or zoom or shift is turned on Fixed time trail 1 When the elapsed time clock counts up to the trail time selected the elapsed time dis play freezes 2 The oldest portions of trails are erased so only the latest trail equal in length to trail time selected 1s shown 3 Trail continues For example the one minute trail time 15 se lected When the elapsed time clock counts up to 60 seconds the elapsed time display freezes at 60 but the latest one minute of trail 1s erased and then trail continues Continuous trail The maximum continuous trail time is 99 min utes and 59 seconds When the elapsed time clock counts up to that time the elapsed time display is reset to zero and trail begins again Cancelling echo trail Press the ECHO TRAIL key again 3 4 Changing trail attributes Trail gradation and trail time can be selected on the OTHER MENU Table 3 1 Trailing attributes Items in OTHERS menu Description Trails can be shown in single or multiple gradations Multiple paints trails getting thinner with time just like the afterglow on an analog PPI radar Trail Tone Multiple Single Trails can be set for 15 sec 30sec Imin 3min 6min 15min 30min or continuous Trail Time 3 7 Guard Alarm The guard alarm allows the operator to set the desired
26. cancel press the EBL OFFSET key om EBL1 VRM1 VRM EBL1 70 0 R 4 5 NM VRM1 bearing range Figure 2 12 Measuring the range and bearing between two targets by using the offset EBL 2 17 Shifting off centering the Picture Your vessel s position can be shifted up to 7590 of the range in use to view the situation around your vessel without changing the range or size of targets 1 Operate the trackball to set cursor where de sired 2 Press the SHIFT ZOOM key OFFCENTER appears at the top right cor ner of the display when the picture 15 shifted Cursor Cursor 1 Place cursor where desired 2 Press SHIFT ZOOM Figure 2 13 Shifting the picture Cancelling shifted picture Press SHIFT ZOOM key again key to off center display 2 18 Zoom The zoom feature allows you to double the size of the area between your vessel and any loca tion within the current range to take a closer look at an area of interest 1 Select location with the cursor 2 Press and hold down the SHIFT ZOOM key about two seconds ZOOM appears at the top right corner when the zoom function is On Cursor D Place cursor 2 Press F1 to zoom where desired Figure 2 14 Zoom function Note Zoom is cancelled when range or presentation mode is changed Cancelling zoom Press SHIFT ZOOM key again 2 9 This page is intentionally left bla
27. d OFF ESI or ES2 appears at the top right hand corner of display when echo stretch is on Bearing earir Bearing direction direction Range direction KE d Echo stretch 1 Echo stretch 2 Figure 2 7 Echo stretch Note1 This function magnifies not only targets but also sea clutter and radar interference For this reason be sure the controls for adjustment of sea clutter and radar interference are properly adjusted before activating the echo stretch Note 2 ES2 is not available on short ranges 2 14 Measuring the Range You can measure the range to a target three ways by the range rings by the cursor and by the VRM Variable Range Marker Measuring range by range rings Count the number of rings between the center of the display and the target Check the range ring interval and judge the distance of the echo from the inner edge of the nearest ring To turn the rings on or off see the menu opera tion later Chapter 3 Measuring range by cursor Operate the trackball to place the cursor inter section on the inside edge of the target echo The range to the target as well as the bearing appears at the bottom of the display Measuring by VRM 1 Press either 1 or 2 key The readout of the active marker 15 circum scribed Figure 2 6 Display bottom showing location of EBL and VRM readouts 2 Operate the trackball to place
28. ding This mode 15 useful for determining ship s position and as a navigation monitor on a nautical chart The picture 15 stabilized against yaw of vessel thereby reducing smear of target echoes Bear ing signal 15 required from a heading sensor True motion True motion displays own ship and moving objects in their true motion Bearing signal and speed signal are required from heading sensor and speed sensor 2 12 Erasing the Heading Marker North Marker The heading marker or north marker available with gyrocompass connection may occasion 2 6 ally mask a target To view the target you can temporarily erase the heading marker and north marker by pressing and holding down the GAIN HM OFF control Release the con trol to re display the markers Heading marker North marker Figure 2 6 Heading marker and north marker 2 13 Magnifying Long Range Echoes echo stretch Normally the reflected echoes from long range targets appear on the display as weaker and smaller blips even though they are compensated by the radar s internal circuitry The echo stretch function magnifies these small blips in all ranges Two types of echo stretch are available ES1 which stretches echoes in bearing direc tion and ES2 which stretches them in both range and bearing directions To turn the echo stretch on or off press the A C RAIN control Each press changes the echo stretch function in the sequence of ESI ES2 an
29. duct X band radar Type FR 7252 A X A PPP NP NA UND UN NR RR d dm lm NN GR eh eh UP NA N E di um ud n nb GR NR UN nd m RR Model name serial number is in conformity with the essential requirements as described in the Directive 1999 5 EC of the European Parliament and of the Council of 9 March 1999 on radio equipment and telecommunications terminal equipment R amp TTE Directive and satisfies all of the following rules technical standards and recommendations applicable to the product EN 60945 1997 01 IEC 60945 Third edition 1996 11 IEC 60936 1 Amendment 1 Annex D 2002 06 ITU Appendix S3 Table 2 ITU R M 1177 3 2003 06 ITU R SM 1539 2002 11 ITU R SM 1541 2002 11 ITU R SM 329 9 2003 02 title and or number and date of issue of the standard s or other normative document s For assessment see e Statement of Opinion 00214135 AA 01 of 3 February 2004 issued by Telefication The Netherlands e Test report 96323120 of 20 August 1998 prepared by Tel
30. e 10 MENU 2 Select 8 Auto ACQ by operating the trackball 3 Operate the trackball to select 4 Press the ACQ ENTER key 5 Press key to close the menu 6 6 Terminating Tracking of Targets When the ARP 10 has acquired 10 targets no more acquisition occurs unless targets are lost Should this happen cancel tracking of indi vidual targets or all targets by the procedure described below Individual targets Place the cursor on the target which you do not want to be tracked any longer by operating the trackball and press and hold down the SE LECT CANCEL key All targets Tracking of all targets can be canceled from the ARP 10 MENU 1 Open the ARP 10 MENU 2 Select 2 Cancel 3 Press the ACQ ENTER key 6 7 Displaying Target Data The ARP 10 calculates motion trends range bearing course speed CPA and of all targets being tracked at the ARPA Data area To turn ARPA data on 1 Press the MENU key 2 Select the DISP DATA 3 Press the ACQ ENTER key to select message for ARP or NAV and ARP 4 Press the ACQ ENTER key to set 5 Press the MENU key to close the menu CAUTION At the speed under 5 kts the target data is displayed with a delay because of filtration Place the cursor on a wanted target and press the SELECT CANCEL key Data on the se lected target is displayed at the bottom of the
31. e pressing and holding down the GAIN control operate the trackball adjustment range FR7062 1 0 11 9V FR7112 7252 1 0 32 V 4 Press the MENU key to close the menu MANUAL appears at the top right hand corner when manual tuning 15 in effect 10 WPT Mark Selects to display the waypoint mark 11 EBL Ref Selects EBL reference for relative or true 12 VRM Unit Selects distance unit of VRM and cursor for nm km or sm 13 Watchman Turns watchman on set rest period or off 14 STBY Disp Selects the condition at stand by display STBY or navigation data or go into the economy mode 15 Guard Mode Selects condition which triggers guard alarm in or out 16 Own Position Displays the own ship s position in lat long or Loran C TDs Requires NAV T 17 Cursor Posi Displays the cursor position in range bearing or lat long 18 Alm Sense LV Selects minimum echo strength which triggers guard alarm 19 Dead Sector Select On to display the dead sector which shows the area where the radar is not transmitted 20 Range Selects ranges to use 21 2nd Rej Select to suppress second trace echoes 22 Self Test Tests keys ROM and RAM checks antenna rotation speed and displays program no 23 Installation Setup Level 1 and 2 are same brilliance while the menu 15 displayed The brilliance changes after the menu is erased 1 Can not be selected on N type radar VRM unit is fixed for
32. e the wa ter the further the clutter will extend Sea clut ter appears on the display as many small echoes which might affect radar performance See the left hand figure in Figure 2 4 When sea clut ter masks the picture adjust the A C SEA con trol to reduce the clutter How the A C SEA control works The A C SEA control reduces amplifica tion of echoes at short ranges where clutter 15 the greatest and progressively increases am plification as the range increases so amplifica tion will be normal at those ranges where there is no sea clutter Adjusting the A C SEA control The proper setting of the A C SEA should be such that the clutter is broken up into small dots and small targets become distinguishable If the control 15 set too low targets will be hid den in the clutter while if it is set too high both sea clutter and targets will disappear from the display In most cases adjust the control until clutter has disappeared to leeward but a little is still visible windward 1 Confirm that the sensitivity 1s properly ad justed and then transmit on short range 2 Adjust the A C SEA control so small tar gets are distinguishable but some clutter re mains on the display Sea clutter at display center A C SEA control adjusted sea clutter suppressed Figure 2 4 How to adjust the A C SEA control Tip for adjusting the A C SEA A common mistake 15 to over adjust the circuit so all the clutter
33. ea or rain clutter Note 2 When you want to acquire 11th target cancel tracking one of less important targets 6 4 Note 3 When auto acquisition mode Auto ACQ is on up to five targets can be acquired For details see 6 5 Automatic Acquision A WARNING When a tracked target nears another tracked target the targets may be swapped When two targets come close to each other one of the two can become a lost target Should this happen reacquisition of the lost target is required after the two targets have separated 6 5 Automatic Acquisition The ARP 10 can acquire up to five targets au tomatically by setting the Auto Acquisition area predefined in the system If Auto ACQ is se lected after more than five targets have been manually acquired only the remaining capac ity of targets can be automatically are acquired For example when seven targets acquired manually then the Auto ACQ 1s switched on only three targets can be acquire automatically When five targets have been automatically ac quired AUTO TARGET FULL message ap pears at top left corner seven on the display Setting auto acquisition area Auto acquisition area 15 predefined between 2 0 and 2 5 nm in range and 45 on either side of the heading maker in bearing If a target comes into this area 1t 15 acquired automatically Figure 6 4 Auto acquisition area Follow the steps below to activate the auto ac quisition area 1 Open th
34. easuring the Bearing 5 07 6 5 Automatic Acquisition 6 4 2 16 Using the Offset EBL 2 8 6 6 Terminating Tracking of Targets 6 5 2 17 Shifting off centering the Picture 2 9 6 7 Displaying Target Data 6 5 eee rey 2 9 6 8 Mode and Length of Vectors 6 6 3 ADVANCED OPERATION SPECIFICATIONS SP 1 euni ect ds IN 1 3 1 Basic Menu Operation 3 Declaration of Conformity vii viii MENU TREE RINGS Off 1 2 3 max INDEX LINE Off On DISP DATA NAV Auto plotter NAV and Auto plotter INT REJECT Off On ARP 10 MENU OTHER MENU 5 1 Display 2 All Cancel 3 Vector Ref Panel Dimmer 1 2 3 4 4 Vector Length Mark Brill 1 2 3 4 5 History HD Mark 1 2 3 4 6 CPA SET Characters 1 2 3 4 7 ICPA SET Trail Tone Single Multi 8 AUTO ACQ Pulselength Short Long With ARP 10 only Noise Reject Off On Trail Time 15sec 30sec 1min 3min 6min 15min 30min Cont Tune Auto Manual WPT Mark Off On EBL Ref Rel True VRM Unit nm km sm t Watchman Off 5min 10min 20min STBY Disp Norm Econo Nav Guard Mode In Out Own Position L L TD Cursor Posi B R L L Alm Sense LV Low Mid High Dead Sector Off On Range 1 8 1 4 172 3 4 1 115 2 13 4 6 8 12 16
35. ed in the full 360 degree circle each pulse at a slightly different bearing from the previous one Therefore if one knows the di rection in which the signal 1s sent out one knows the direction from which the echo must return 1 5 Radar Wave Speed and Antenna Rotation Speed Note that the speed of the radar waves out to the target and back again as echoes 1s extremely fast compared to the speed of rotation of the antenna By the time radar echoes have returned to the scanner the amount of scanner rotation after initial transmission of the radar pulse 15 extremely small 1 6 The Radar Display The range and bearing of a target are displayed on what is called a Plan Position Indicator PPI This display 1s essentially a polar diagram with the transmitting ship s position at the center Images of target echoes are received and dis played at their relative bearings and at their distance from the PPI center With a continuous display of the images of tar gets the motion of the transmitting ship 15 also displayed 1 1 A Bird s eye view of situation 1 2 Heading marker Targets Range and bearing of a target relative to own ship are readable on the PPI in center B Radar picture of A Figure 1 1 How radar works 2 BASIC OPERATION 2 1 Control Description Turns power on Press together with STBY TX key to turn power off GAIN Alternates between stand by and oF TOv transmit
36. efication The Netherlands e Test reports TI 1674 of 13 March 1998 K03 17 191 of 5 January 2004 prepared by Furuno Electric Co Ltd On behalf of Furuno Electric Co Hiroaki Komatsu Nishinomiya City Japan Manager February 17 2005 International Rules and Regulations Place and date of issue name and signature or equivalent marking of authorized person
37. et 2 Press the EBL 1 key to turn on EBL I 3 Press EBL OFFSET key 1 8 ori gin shifts to cursor location 4 After waiting several minutes press the EBL 1 key again 2 8 5 Operate the trackball to pass EBL1 through the center of the target If the target tracks along the EBL towards the center of the display your vessel s position the target may be on a collision course To cancel the offset EBL press the EBL OFF SET key 6 0 NM 2 0 EBL1 origin initial position of target Target moved here A Offset EBL EBL1 EBL VRM EBL1 6 0 NMI vRM1 bearing range Figure 2 11 Predicting collision course by using the offset EBL Measuring range and bearing between two targets The procedure which follows shows how to measure the range and bearing between target and target B in Figure 2 12 1 Operate the trackball to place the cursor the center of target A 2 Press the EBL 1 key to turn on EBL I 3 Press the EBL OFFSET key EBLI Ss ori gin shifts to cursor location 4 Press the EBL 1 key 5 Operate the trackball to bisect target B with EBL1 Check the EBL I readout to find bearing between target A and target B 6 Press the VRM 1 key to turn on VRMI Operate the trackball to place the outside edge of VRMI on the inside edge of target B Check the VRM readout to find the range between target A and target B To
38. f a navigation aid inputs navigation data to this radar navigation data can be displayed during stand by You can turn the navigation data dis play on off through the menu Figure 2 3 shows a typical navigation data display during stand by ced TEMPERATURE 17 3 Temperature Course Ship s position in latitude and longitude and Loran TDs Cross Track Error d shows direction XTE R and amount of error 0 5 1 0 is not displayed on N type radar Figure 2 3 Typical navigation data display during stand by 2 3 Note 1 Availability of a particular display item depends on incoming data Note 2 When Range to Waypoint reaches 0 1 nm the WPT mark jumps to dead ahead even though a difference may exist between heading and BRG to WPT Note 3 When cross track error exceeds 1 nm on either side the XTE mark starts blinking 2 6 Selecting the Range The range selected automatically determines the range ring interval the number of range rings pulselength and pulse repetition rate for opti mal detection capability in short to long ranges You can select which ranges and pulselength for 1 5 and 3 mile ranges to use through the menu The range range ring interval and pulselength appear at the top left hand corner of the display Selecting the range Press the RANGE key The range and range ring interval appear at the top left corner on the display Tips
39. feature periodically transmits the radar to check for radar targets which may have entered the alarm zone e Ship s position in latitude and longitude and Loran C TDs range and bearing to a waypoint speed heading and course can be shown in the bottom text area Requires a navigation aid which can output such data in IEC 1162 format Zoom feature provided Auto Plotter ARP 10 option acquires and tracks up to 10 targets and is installed in display unit Cursor position data TLL can be output to a plotter option TABLE OF CONTENTS vi Index LINES 3 1 3 3 Suppressing Radar Interference 3 2 MENU TREE viii 3 4 Selecting Pulsewidth 3 2 3 5 Displaying Navigation Data 3 3 SYSTEM CONFIGURATION ix DOES cce tt tme 3 4 2 d Cr ard ATA ida 3 4 1 PRINCIPLE OF OPERATION 2 0 Watchman Soest rese 3 6 II Radar acoso Mee oasis 1 1 3 9 OTHER MENU 3 7 1 2 How Ships Determined Position 3 10 Function 3 8 Belore 1 1 3 11 Adjusting Brilliance of Markers 3 8 1 3 How Radar Determines Range 1 1 3 12 Suppressing Second Trace Echoes 3 8 1 4 How Radar Determines Bearing 1 1 3 13 Suppressing 3 8 1 5 Radar Wave Speed and Antenna 3 14 Outputting Target
40. for selecting the range When navigating in or around crowded har bors select a short range to watch for pos sible collision situations If you select a lower range while on open water increase the range occasionally to watch for vessels that may be heading your Way 2 7 Adjusting Picture Brilliance The BRILL key adjusts the brilliance of the radar picture in sixteen levels Press BRILL key to set the brilliance level The current level momentarily appears on the screen 2 4 2 8 Adjusting Receiver Sensitivity The GAIN control adjusts the sensitivity of the receiver It works in precisely the same manner as the volume control of a broadcast receiver amplifying the signals received The proper setting is such that the background noise is just visible on the screen If you set up for too little sensitivity weak echoes may be missed On the other hand excessive sensitivity yields too much background noise strong tar gets may be missed because of the poor con trast between desired echoes and the background noise on the display To adjust receiver sensitivity transmit on long range and adjust the GAIN control so back ground noise is just visible on the screen 2 9 Adjusting the A C SEA Control reducing sea clutter Echoes from waves can be troublesome cover ing the central part of the display with random signals known as sea clutter The higher the waves and the higher the antenna abov
41. g Elapsed Time Navigation Data navigation input required Heading heading sensor input required 6 Input Data NMEAO183 Ver 1 5 2 0 current loop Own ship s position GGA gt RMCSRMASGLL GLL is available Ver 1 5 only Speed RMC gt RMA gt VTG gt VHW Heading True HDT gt HDG gt HDM gt VHW gt VHW SP 2 Heading Magnetic gt HDT VHW VHW Course True gt gt Course Magnetic VTG gt RMC gt RMA Waypoint Range Bearing gt gt Loran time difference RMA gt GLC gt GTD Water depth DPT gt DBT gt DBK gt DBS Water temperature gt Time ZDA XTE RMB gt XTE gt APB 1 calculate by magnetic drift 7 Output Data NMEAO0183 Ver 1 5 2 0 RS 422 TLL target data and RSD 5 ENVIRONMENTAL CONDITION 1 Ambient Temperature Scanner Unit 25 C to 70 C Display Unit 15 C to 55 C 2 Relative Humidity 95 or less at 40 C 3 Waterproofing Scanner Unit IPX6 Display Unit Chassis not specified Panel IPX4 6 POWER SUPPLY amp POWER CONSUMPTION 1 Power Supply FR 7062 7112 12 24 32 VDC 10 8 to 41 6 VDC FR 7252 24 32 VDC 21 6 to 41 6 VDC 2 Voltage and Current FR 7062 XNI2A 4rpm 12 VDC 7 8A 24VDC 3 9A 32VDC 2 9A 100 XN12A 48rpm 12 VDC 8 8A 24VDC 4 4A 32VDC 3 3A 70 24 12VDC 10A 24VDC 5A 32VDC 3 8A 100 FR 7112 XN12A 24rpm 12 VDC 8 6A 24VDC 4 3A 32VDC 3 2A 100 kt XN12A 48rpm 12 VD
42. he OTHER MENU 3 13 Suppressing Noise Electrical noise can be suppressed by turning on 7 NOISE on the OTHER MENU This function 1s available by pressing the F2 key default setting 3 14 Outputting Target Position Target position data can be output to a plotter in IEC 1162 format Press and hold down the TLL key to output the data This function re quires position data and heading signal 3 15 Tuning the Receiver The radar receiver can be tuned automatically or manually and the default tuning method 15 automatic In automatic tuning the radar 15 au tomatically tuned everytime the radar 15 switched to Tx and the indication TUNING appears during tuning The tuning bar at the top right hand corner of the display shows tuning condition Generally the longer the tuning bar the better the tuning condition however the length of the bar changes with number of radar echoes range and other factors Current tuning method is shown above the tuning bar as either AUTO or MANUAL For how to tune the receiver manually see 9 Tune on page 3 7 Note Automatic tuning may not work properly if own ship s radar receives the radar wave of another ship s radar If this is the case the radar will be out of tune Press the STBY TX key twice to retune 4 FALSE ECHOES Occasionally false echoes appear on the screen at positions where there 15 no target In some cases the effects can be reduced or elimi
43. he guard zone range the guard zone disap pears and IN or OUT appears in inverse video If this happens raise range to re display the guard zone A target echo does not always mean a land mass reef ships or surface objects but can imply returns from sea surface or precipita tion As the level of these returns varies with environment the operator should properly adjust the A C SEA A C RAIN and GAIN to be sure the alarm system does not over look target echoes 3 8 Watchman The watchman function periodically transmits the radar for one minute to check for targets in a guard zone If it finds change in the zone from the previous transmission the audible alarm sounds and the radar transmits continuously This feature 15 useful when you do not need the radar s function continuously but want to be alerted to radar targets 1n a specific area Tx St by Tx imin 5 100 imin 5 100 20 20 Watchman starts Figure 3 10 How watchman works How watchman works When the time selected for the watchman rest period has elapsed the radar automatically transmits for one minute to check the condition inside the guard zone If there is no change the radar goes into stand by WATCHMAN ap pears during stand by If there 1s change the radar sounds the audible alarm cancels the watchman function and transmits continuously 3 6 Turning on watchman 1 Create a guard zone usually
44. in to adjust the EBL 3 Check the EBL readout at the bottom left hand corner of the display to find the bear ing to the target 4 To anchor the EBL press the corresponding EBL key again To erase the EBL and its readout press and hold down the corresponding EBL key about two seconds 2 7 Target Cursor EBL1 EBL2 Cursor Bearing EBL EBL1 bearing 49 0 R EBL1 bearing 135 0 R 40 0 R 4 0 NM Figure 2 10 How to measure bearing by EBL and cursor Note The bearing readout for the EBL and the cursor can be displayed in relative or true bearing true bearing requires heading sensor input For North up and Course up display modes the bearing reference is always true Tips for measuring bearing Bearing measurements of smaller targets are more accurate the center of larger target pips is not as easily identified Bearings of stationary or slower moving tar gets are more accurate than bearings of faster moving targets To minimize bearing errors keep echoes in the outer half of the picture by changing the range scale angular difference becomes dif ficult to resolve as a target approaches the center of the display 2 16 Using the Offset EBL The offset EBL provides two functions predict collision course of radar target and measure the range and the bearing between two targets Predicting collision course 1 Operate the trackball to place the cursor the center of the targ
45. is removed As an example set up for maximum A C SEA You will see how the center of the display becomes dark This dark zone can be dangerous targets may be missed especially if the sensitivity 1s not prop erly adjusted Always leave a little clutter vis ible on the display to be sure weak echoes will not be suppressed If there 15 no clutter visible on the display turn off the circuit N CAUTION Turn off the A C SEA control when its use is not required the control can erase weak targets 2 10 Adjusting the A C RAIN Control reducing rain clutter The vertical beamwidth of the antenna 1s de signed to see surface targets even when the ship is rolling However by this design the unit will also detect rain clutter rain snow hail etc in the same manner as normal targets Figure 2 5 shows the appearance of rain clutter on the dis play Adjusting A C RAIN When rain clutter masks echoes adjust the A C RAIN control This control splits up these unwanted echoes into a speckled pattern mak ing recognition of solid targets easier Appearance of rain clutter A C RAIN control adjusted rain clutter suppressed Figure 2 5 Effect of A C RAIN Note In addition to reducing clutter the A C RAIN control can be used in fine weather to clarify the picture when navi gating in confined waters However with the circuit activated the receiver is less sensitive Therefore turn off the circuit when its functio
46. ll of the following rules technical standards and recommendations applicable to the product EN 60945 1997 01 IEC 60945 Third edition 1996 11 IEC 60936 1 Amendment 1 Annex D 2002 06 ITU R R Appendix 53 Table 2 ITU R M 1177 3 2003 06 ITU R SM 1539 2002 11 ITU R SM 1541 2002 11 ITU R SM 329 9 2003 02 title and or number and date of issue of the standard s or other normative document s For assessment see Statement of Opinion 00214131 AA 01 of 26 January 2004 issued by Telefication The Netherlands Test report 96310720 of 1 October 1998 prepared by Telefication The Netherlands Test reports TI 1672 of 26 February 1998 K03 17 176 and K03 17 177 of 5 January 2004 prepared by Furuno Electric Co Ltd On behalf of Furuno Electric Co Ltd Hiroaki Komatsu Nishinomiya City Japan Manager February 17 2005 International Rules and Regulations Place and date of issue name and sianature or equivalent marking of authorized person FURUNO ELECTRIC CO LTD uU o 9 52 Ashihara Cho Nishinomiya City 662 8580 Hyogo Japan Tel 81 798 65 2111 Fax 81 798 65 4200 Pub NO DOC 768 Manufacturer 9 52 Ashihara Cho Nishinomiya City 662 8580 Hyogo Japan Address declare under our sole responsibility that the product X band radar Type FR 7112 Model name serial number is in conformity with the essential requirements as described in the Directive 1999 5 EC of the
47. ment may result and void the warranty FR 7062 7112 15 shipped with a 15 A fuse for 12 V ship s mains If the ship s mains 15 24 32 V change the fuse to 10 A supplied FR 7252 is supplied with a 10 A fuse for 24 32 V ship s mains CAUTION Use the proper fuse Use of a wrong fuse can result in equipment damage Table 5 1 Recommended maintenance program Period 3 to 6 months Check point Exposed nuts and bolts on scanner unit Scanner radiator crack is found apply a slight amount of sealing compound or adhesive as a temporary remedy then call for repair CRI The CRT will in time accumulate a Do not use chemical cleaners to coating of dust which tends to dim the picture Wipe CRT lightly with soft cloth to remove dust Check for corroded or loosened nuts and bolts If necessary clean and repaint them thickly Replace them if heavily corroded Check for dirt and cracks on radiator surface Thick dirt should be wiped off with soft cloth dampened with fresh water If a Sealing compound may be used instead of paint Apply a small amount of grease between nuts and bolts for easy removal in future Do not use plastic solvent acetone for cleaning If you need to remove ice from scanner unit use a wooden hammer or plastic head hammer Crack on the unit may cause water ingress causing serious damages to internal circuits clean the CRT they can remove CRT coating 6 months Display
48. n is not required Automatic adjustments of A C SEA and A C RAIN Push the A C SEA A C AUTO control C AUTO appears at the bottom left hand cor ner of the display when the A C AUTO circuit is on You can fine tune by adjusting the A C SEA A C RAIN and GAIN controls 2 5 2 11 Selecting the Presentation Mode This radar provides four presentation modes head up course up north up and true motion Press the MODE key With heading sensor connection the display and the display mode indication at the top left hand corner of the display change in the sequence of HU RM Head up CU RM Course up NU RM North up and NU TM True Motion when the MODE key 15 pressed If there 15 no heading sensor connection the display mode 15 always HU RM Note The radar begins operation with last selected display mode except Course up whenever the unit is turned on Note however that Head up is selected when Course up was the last used mode Head up The picture is oriented so the heading marker is at the top of the display This mode 15 useful for navigation in congested waters Course up The Course up mode shows ship s heading by the heading marker at the top of the display To get heading desired steer vessel in direction de sired and then show at the top left hand corner of the display North up North is at the top of the display and the head ing marker moves with ship s hea
49. nated The operator should familiarize himself or her self with the appearance and effects of these false echoes so as not to confuse them with echoes from legitimate contacts 4 1 Multiple Echoes Multiple echoes occur when a short range strong echo 15 received from a ship bridge or breakwater A second a third or more echoes may be observed on the display at double triple or other multiples of the actual range of the tar get as shown in Figure 4 1 Multiple reflection echoes can be reduced and often removed by decreasing the sensitivity or properly adjusting the A C SEA D X Own ship True echo Multiple echo Figure 4 1 Multiple echoes 4 2 Side lobe Echoes Every time the antenna rotates some radiation escapes on each side of the beam called side lobes If a target exists where it can be detected by the side lobes as well as the main lobe the side lobe echoes may be repre sented on both sides of the true echo at the same range as shown in Figure 4 2 Side lobes show usually only at short ranges and from strong tar gets They can be reduced through careful re duction of the sensitivity or proper adjustment of the A C SEA True echo Side lobe Spurious target Antenna Figure 4 2 Side lobe echoes 4 1 4 3 Indirect Echoes Indirect echoes may be returned from either a passing ship or returned from a reflecting sur face
50. nk 3 ADVANCED OPERATION 3 1 Basic Menu Operation The menu mostly contains less often used func tions which once preset do not require regular adjustment To open or close the menu press the MENU key You can select items on the menu with the trackball The complete menu appears at begining of this manual 1 Press the MENU key to display the main menu Sel by T ball amp press ENT INDEX DISP INT LINE DATA REJECT Change brill from 3 to max ARP 10 OTHER MENU MENU Figure 3 1 Main menu 2 Operate the trackball to select the item For example select RINGS A message appears at the bottom of the menu window 3 Press the ACQ ENTER key to select set ting Each time this key 15 pressed the message changes For the RINGS menu the message sequence 15 as shown below Change brill from Off to 1 Change brill from 1 to 2 Change brill from 2 to Change brill from 3 to max Change brill from max to Off Figure 3 2 Messages for RINGS menu 4 Press the MENU key to close the menu 3 2 Index Lines The index lines are useful for maintaining a constant distance between own ship and a coast line or partner ship They are linked with EBL2 and VRM2 EN Figure 3 3 Index lines Turning the index lines on off 1 Press the MENU key 2 Select INDEX LINE by the trackball 3 Select Index Line on by pressing the ACQ ENTER key 4 Press the ACQ ENTE
51. nm 3 7 3 10 Function Keys The function keys and F2 work like the auto dialing feature of a telephone automati cally executing the function assigned to them The assigned function can be turned on off by pressing appropriate function key again Default settings F1 Display NAV ARPA data F2 Noise rejector How to program function keys 1 Press the MENU key 2 Press F1 or F2 to open the function menu SETTING FOR F1 KNOB Sel by T ball amp press ENT 49 Press MENU key to escape DISP STBY INT DATA DISP REJECT NOISE PULSE TRAIL TRAIL REJECT LENGTH TIME TONE ALARM DEAD UD LEVEL SECTOR MAN DIMMER BRILL CTERS OTHER EBL VRM INDEX MENU REF UNIT LINE WPT OWN CURSOR ARP 10 MARK POSITN POSITN MENU ARP 10 ALL VECTOR VECTOR DISP CANCEL LENGTH REF HIS COLLI AUT NO ER Jo Figure 3 10 Function menu 3 Select function desired 4 Press the ACQ ENTER key 5 Press the MENU key to close the menu 3 11 Adjusting Brilliance of Markers 2 Mark Brill on the OTHER MENU adjusts the brilliance of markers such as the cursor 3 8 3 12 Suppressing Second Trace Echoes In certain situations echoes from very distant targets may appear as false echoes second trace echoes on the screen This occurs when the re turn echo 15 received one transmission cycle later namely after a next radar pulse has been transmitted To suppress them select 2nd Rej On on t
52. nual tuning out of best tuning condition This erases or weakens all normal radar ech oes but the SART marks are not erased because the SART response signal scans over all frequencies in the 9 GHz band When the radar approaches the SART in operation the SART marks will enlarge to large arcs blurring a large part of the screen Reduce the sensitivity and adjust the sea clutter control of the radar Summary to detect SART response 1 Use range scale of 6 or 12 nm as the spacing between the SART responses is about 0 6 nm 1125 m to distinguish the SART 2 Turn off the A C AUTO function 3 Turn off the Interference Rejector General remarks on receiving SART Radar range scale When looking for a SART itis preferable to use either the 6 or 12 nautical mile range scale This is because the total displayed length of the SART response of 12 or 24 dots may extend approximately 9 5 nautical miles beyond the position of the SART and it is neces sary to see a number of response dots to distinguish the SART from other responses SART range errors When responses from only the 12 low frequency sweeps are visible when the SART is at a range greater than about 1 n mile the position at which the first dot is displayed may be as mush as 0 64 n mile beyond the true position of the SART When the range closes so that the fast sweep responses are seen also the first of these will be no more than 150 meters beyond the true position FOREWORD
53. olution This is possible Ask your FURUNO representative or dealer to provide this feature Radiator t Distance to 100 W m Distance to 10 W m adiator type point pint FR7062 X bnd 6 kW FR7112 X bnd 12 kW FR7252 X bnd 25 kW DANGER Before turning on the radar make sure no one is near the scanner unit Prevent the potential risk of someone begin struck by the rotating antenna and exposure to RF radiation hazard A WARNING Do not open the equipment Improper handling can result in electrical shock Only qualified personnel shold work inside the equipment Do not disassemble or modify the equipment Fire electrical shock or serious injury can result Turn off the power immediately if water leaks into the equipment or the equip A WARNING Use the proper fuse Fuse rating is shown in the chapter 5 Use of a wrong fuse can result in equipment damage Do not operate the equipment with wet hands Electrical shock can result CAUTION No one navigation device should ever be solely replied upon for the navigation of a vessel Always confirm position against all available aids to navigation for safety of vessel and crew The guard alarm is a useful anti collision aid but does not relieve the operator of the responsibility to also keep a visual lookout for possible collision situations The alarm should never be used as the sole means for detecting possible collision situati
54. ons ment is emitting smoke or fire Continued use of the equipment can Two warning labels are attached to the display cause fire or electrical shock unit and scanner unit Do not remove these label If labels are peeling off or are illegible contact a Do not place liquid filled containers on FURUNO agent or dealer the top of the equipment N WARNING To avoid electrical shock do not remove cover No user serviceable parts inside Display Unit gt Name Warning Label 1 Fire or electrical shock can result if a liquid ills into the equipment Type 86 003 1011 1 ids Code no 100 236 231 WARNING Scanner Unit gt Name Radiation Warning ecu dd Label Confirm that TX has stopped before Type 03 142 3201 0 opening scanner Code no 100 266 890 COMPLIANCE WITH R amp TTE DIRECTIVE 1999 5 EC This radar complies with the R amp TTE Directive 1999 5 EC In accordance with Article 6 3 of this directive FURUNO intends to put this radar on the market of the following countries in EU as well other markets Austria Belgium Cyprus Denmark Estonia Finland France Germany Greece Hungary Ireland Italy Latvia Lithuania Malta Poland Portugal Slovenia Spain Sweden The Netherlands United Kingdom Iceland Norway SART Search and Rescue Transponder A Search and Rescue Transponder SART may be triggered by any X Band 3 cm radar within a range of approximately 8 n miles
55. r length 30 s 1 3 6 15 30 min Orientation True velocity or relative velocity Past positions 5 past positions at intervals of 15 30 s 1 2 3 6 min Alarm Visual and audible alarms against targets vio lating CPA TCPA limits visual alarm against lost targets Target discrimination A target measuring about 800 m or more in the radial or circumferential direction 1s regarded as a landmass and not acquired or tracked Ech oes smaller than about 800 m are regarded as true targets NOTICE Heading data required for plotting function 6 2 6 2 Keys Used for Auto Plotter The Auto plotter utilizes the following touchpad keys Given below is a brief description of these keys MENU Displays Erases the main menu SELECT CANCEL Long press Terminates plotting of the target selected with the cursor Short press Displays the data of target selected with the cursor ACQ ENTER Acquires the target selected with the cursor ARP 10 MENU operation The ARP 10 MENU includes the followings Display Turns on off the plot symbols past positions and target data Cancel Cancels the tracking of all targets Vector Ref Selects relative vector or true vectors Vector Length Selects vector time History Selects past position plot interval Set Selects CPA alarm limit When a target 1s pre dicted to come within this limit an aural alarm sounds and at the same time the
56. rea Figure 6 2 ARP display Deactivating the auto plotter 1 Press the MENU key 2 Open the ARP 10 MENU 3 Operate the trackball to select the 1 Dis play 4 Operate the trackball to select 5 Press the ACQ ENTER key 6 Press the MENU key to close the menu 6 4 Manual Acquisition Follow the steps below to manually acquire a target Up to 10 targets can be manually ac quired 1 Place the cursor on a target of interest by operating the trackball 2 Press the ACQ ENTER key The plot symbol changes its shape according to the status as below A vector appears in about one minute after acquisition indicating the target s motion trend If the target 1s consistently detected for three minutes the plot symbol changes to a solid mark If acquisition fails the target symbol blinks and disappears shortly SQUARE dotted Immediately after acquisition Plot symbol shown in broken lines x SQUARE dotted with a vector One minute after acquisition Vector still unre liable CIRCLE Solid with a vector 3 minutes after acquisition Plot symbol changes to a solid circle indicating the stable tracking condition LARGE SQUARE The plot symbol of a target being tracked be comes twice as large as the normal symbol when the target is selected for data reading Note 1 The target to be acquired should be within 0 2 to 16 nm from own ship and not ob scured by s
57. reen CAUTION The plotting accuracy and response of this auto plotter meets IMO standards Tracking accuracy is affected by the following e Tracking accuracy is affected by course change One to two minutes is required to restore vectors to full accuracy after an abrupt course change The actual amount depends on gyrocompass specifications e The amount of tracking delay is inversely proportional to the relative speed of the target Delay is on the order of 15 30 seconds for high relative speed 30 60 seconds for low relative speed Display accuracy is affected by the following e Echo intensity e Radar transmission pulsewidth e Radar bearing error e Gyrocompass error e Course change own ship or target 6 1 6 1 General The Auto Plotter ARP 10 is an optional circuit board which is accommodated in the display unit of the FR 7062 radar The Auto Plotter permits manual or automatic acquisition and automatic tracking of up to 10 radar targets An internal microprocessor cal culate target data such as speed and course and displays the results in alphanumeric and by vec tors To ensure the reliability of the displayed target data the radar must be properly adjusted for minimum sea returns and noise Principal specifications Acquisition and tracking e Acquisition of up to 10 targets between 0 2 and 16 nm e Automatic tracking of up to 10 acquired tar gets between 0 1 and 16 nm Vectors Vecto
58. s to the right of ROM or RAM indication contact your dealer for advice ARP 10 TEST results ap pear only when optional ARP 10 board is mounted 5 To check the keyboard press any key except ACQ ENTER and POWER keys The pressed key s on screen location lights in black while the key is pressed if the key is operat ing properly 5 3 This page is intentionally left blank 6 ARP 10 OPTION A WARNING No one navigational aid should be relied upon for the safety of vessel and crew The navigator has the responsibility to check all aids available to confirm position Electronic aids are not a substitute for basic navigational principles and common sense e This auto plotter automatically tracks an automatically or manually acquired radar target and calculates its course and speed indicating them by a vector Since the data generated by the auto plotter are based on what radar targets are selected the radar must always be optimally tuned for use with the auto plotter to ensure required targets will not be lost or unwanted targets such as sea returns and noise will not be acquired and tracked e A target does not always mean a land mass reef ships or other surface vessels but can imply returns from sea surface and clutter As the level of clutter changes with environment the operator should properly adjust the A C SEA A C RAIN and GAIN controls to be sure target echoes are not eliminated from the radar sc
59. scanner rotation there is no change request service sensitivity a key is pressed nothing happens key may be faulty Request service 5 2 5 4 Self Test 6 Press the ACQ ENTER key to check the display circuit The following pattern The self test facility checks the keyboard ROM Should appear and RAM for proper operation 1 Press the MENU key 2 Select OTHER MENU 3 Select 22 Self Test and press the ACQ ENTER key The following display appears Self Test Key test Press each key and check on screen indication Figure 5 2 Test pattern ARP 10 TEST OK 18590271xx 7 To return to the Self Test menu press the NAV 0 167 6 MENU key 3 8 To escape from the self test press the MENU 0003 key tFE DATA1 0000 i 0000 5 5 Life Expectancy of Program No 0359146 1 Mag netron ROM OK RAM OK Hours in use 000006 9H The following table shows the life expectancy of Tx hours 000001 1H the magnetrons Press MENU for OTHER menu Table 5 3 Life expectancy of magnetrons Life Model Codeno expectancy _ MG5389 000 135 146 FR 7062 MAF1422B 000 146 871 2000 to 3 000 MG4006 000 150 838 hours including FR 7112 MAF1425B 000 146 872 stand by M1458 000 140 344 FR 7252 65436 000 140 762 Figure 5 1 Self test screen 4 The ROM and RAM are automatically checked If NG No Good appear
60. screen bottom 1f this radar receives navigation input in IEC 1162 format Navigation data include Position in latitude and longitude or Loran C time difference e Range bearing and time to go to both waypoint selected on the navigator and the cursor Speed If the navigation input includes destination data waypoint position is denoted on the radar display by a dashed ring O 125 1 Y Mi L_13 5 R 0 142NM CURSOR 34 29 98N 136 35 77E OWN SHIP 34 56 12N 135 34 56E SPD 35 0KT TTG 01 00 HDG Min 1 MN ilia ii abad To turn navigation data on or off Press the F1 key if its function 15 set for DISP DATA default setting or select DATA DISP on the menu TRAIL manui 25 38 30min G OUT yt ZOOM LT 7 ES 4 4 D 2 Waypoint Mark VRM M is not displayed on 0 048NM 0 100NM N type radar WAYPOINT i i ARA Navigation 50 0 M Data TTG 00 20 Figure 3 6 Typical navigation data display 3 6 Echo Trail You can show the movement of all radar tar gets relative to your vessel in afterglow This function 15 useful for alerting you to possible collision situations Starting echo trail Press the ECHO TRAIL key TRAIL the echo trail time selected on OTHER MENU and elapsed time appear at the top right hand corner of the display Then afterglow starts extending from all t
61. splays cursor position display in lat long or bearing range Functuion is available when nav data is not displayed Opens closes menus Trackball 1 Shifts cursor EBL and VRM 2 Sets guard zone 3 Selects items and options on menu 4 Shifts origin of EBL and VRM Figure 2 1 Control panel 2 2 Display Indications and Markers Echo trail elapsed time P 3 4 Heading requires heading data Heading marker P 2 6 Range P 2 4 HDG xd qn Range ring interval P 2 4 Pulselength P 2 4 Display mode P 2 6 2nd trace echo suppressor P 3 8 Guard zone area P 3 4 EBL1 P 2 7 VRM2 P 2 7 Cursor P 2 7 A C AUTO P 2 5 T N x l Junt hy EBL2 bearing P 2 8 0 EBL1 bearing P 2 8 Cursor bearing P 2 8 Cursor range P 2 7 Figure 2 2 Display indications 2 2 Tuning status P 3 8 Tuning bar P 3 8 Echo trail time P 3 4 Guard Zone P 3 4 Zoom P 2 9 or Off center P 2 9 Echo Stretch P 2 6 EBL2 2 7 Range ring P 2 7 VRM1 2 7 Index lines P 3 1 North marker P 2 6 Noise rejector P 3 8 Interference rejector P 3 2 VRM 1 range 2 7 VRM2 range P 2 7 2 3 Turning the Radar On Off Press POWER key to turn the radar To turn the radar off press the POWER key together with STB Y TX key When the radar is turned on the control panel lights and
62. t the risk of collision by alert ing you to threatening targets It is important that GAIN A C SEA A C RAIN and other ra dar controls are properly adjusted and the ARP 10 is set up so that it can track targets effectively CPA TCPA alarm ranges must be set up prop erly taking into consideration the size tonnage speed turning performance and other charac teristics of own ship A WARNING The CPA TCPA alarm feature should never be relied upon as a sole means for detecting the risk of collision The navigator is not relieved of the responsibility to keep visual lookout for avoiding collisions whether or not the radar or other plotting aid is in use Follow the steps shown below to set the CPA alarm ranges 1 Open the 10 MENU 2 On the Set line select a CPA limit desired Off 0 5 1 2 3 5 6 nm 3 Press the ACQ ENTER key 4 On TCPA Set line select a TCPA limit desired 30s 1 2 3 4 5 6 12M 5 Press the ACQ ENTER key 6 Press the MENU key to close the menu The flashing of the triangle plot symbol and vector remains on the screen until the danger ous situation 15 no longer present or you inten tionally terminate tracking of the target by using SELECT CANCEL key Lost target alarm When the system detects a loss of a tracked tar get the target symbol becomes a flashing dia mond SPECIFICATIONS OF MARINE RADAR FR 7062 7112 7252
63. the outside edge of the VRM on the inside edge of the target The trackball must be operated within five seconds after pressing a VRM key oth erwise the corresponding VRM cannot be operated Press the key again to ad just the VRM 3 Check the VRM readout at the bottom right hand corner of the display to find the range to the target 4 To anchor the press the key again To erase the VRM press and hold down the corresponding VRM key about two seconds Range 6 0 NM Range ring 2 0 interval Target Cursor om mm wo VRM1 VRM range 3 0 NM VRM2 range 4 0 NM Cursor range Figure 2 9 Measuring range by the cursor and VRM Note You can display the range readout of the VRM and cursor in nautical miles statute miles or kilometers For details see the next chapter 2 15 Measuring the Bearing There are two ways to measure the bearing to a target by the cursor and by the EBL Electronic Bearing Line Measuring bearing by cursor Operate the trackball to bisect the target with the cursor intersection The bearing to the tar get appears at the bottom of the display Measuring by EBL 1 Press the EBL 1 or EBL 2 key 2 Operate the trackball to bisect the target with the EBL The trackball must be operated within five seconds after pressing an EBL key other wise the corresponding EBL cannot be oper ated Press the EBL key aga
64. unit Check for tight connection and If corroded contact your dealer for to 1 year connectors corrosion replacement 5 1 5 3 Troubleshooting Table 5 2 contains simple troubleshooting pro cedures which you can follow to try to restore normal operation If you cannot restore normal operation do not attempt to check inside any unit of the radar system Any repair work is best left to a qualified technician Table 5 2 Troubleshooting table you pressed the the control panel does try adjusting the control panel back POWER key to turn not light lighting on the OTHERS menu on the radar battery may have discharged e check fuse in power cable nothing appears on try adjusting the brilliance the display or display contrast is poor characters are request service distorted the radar has the scanner does not e the problem may be in scanner unit warmed up and you rotate Request service pressed the STBY TX key to characters and have a qualified technician check the transmit indications are set abnormal you have adjusted neither noise nor check signal cable for damage the gain with A C targets appear RAIN and A C SEA indications and off markers do neither indications nor check signal cable for damage markers appear noise and targets do the sweep radial line the problem may be in the scanner sweeping around the unit Request service display is not synchronized with

Furuno FAR-2167DS-D Marine RADAR User Manual

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