Furuno FR-7252 - Manuals - manualsarea.com

Page 3 - SAFETY INSTRUCTIONS; Radio Frequency Radiation Hazard; Stay away from transmitting antenna.

i DANGER DANGER SAFETY INSTRUCTIONS Radio Frequency Radiation Hazard The radar antenna emits electromagnetic radio frequency (RF) energy which can beharmful, particularly to your eyes. Never look directly into the antenna aperture from aclose distance while the radar is in operation or expose yourse...

Page 4 - ii; DANGER; Do not open the equipment.; Electrical shock can result.; WARNING

ii 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 exposureto RF radiation hazard. CAUTION No one navigation device should ever besolely replied upon for the navigation ofa vessel. Always con...

Page 5 - iii

iii COMPLIANCE WITH R&TTE DIRECTIVE 1999/5/EC This radar complies with the R&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, Es...

Page 6 - sec) through the band before beginning a rela-; Showing SART marks on the radar display; iv

iii SART (Search and Rescue Transponder) A Search and Rescue Transponder (SART) may be triggered by any X-Band (3 cm) radarwithin a range of approximately 8 n.miles. Each radar pulse received causes it to transmita response which is swept repetitively across the complete radar frequency band. Whenin...

Page 7 - Summary to detect SART response; Radar range scale

iv 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 f...

Page 8 - Features; The main features of the model FR-7062 are; FOREWORD

v C o n g r a t u l a t i o n s o n y o u r c h o i c e o f t h eFURUNO FR-7062/7112/7252 Marine Radar.We a r e c o n f i d e n t y o u w i l l s e e w h y t h eFURUNO name has become synonymous withquality and reliability. For over 40 years FURUNO Electric Companyhas enjoyed an enviable reputation ...

Page 9 - TABLE OF CONTENTS; PRINCIPLE OF OPERATION; How Ships Determined Position; ADVANCED OPERATION; vii; viii

vi TABLE OF CONTENTS FOREWORD ............................... v MENU TREE ............................. vii SYSTEM CONFIGURATION .... viii 1. PRINCIPLE OF OPERATION 1.1 What is Radar? ................................. 1-1 1.2 How Ships Determined Position Before Radar ..................................

Page 10 - MENU TREE

vii 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 MENUOTHER MENU 1.2.3.4.5.6.7.8. 9. 10.11.12.13.14.15.16.17.18.19.20. 21.22.23. Panel Dimmer (1, 2, 3, 4)Mark Brill (1, 2, 3, 4)HD Mark (1, 2, 3, 4)Characters (1, 2...

Page 11 - SYSTEM CONFIGURATION; Auto Plotter; Video Sounder; Scanner Unit; ix

viii SYSTEM CONFIGURATION *Equivalent to NMEA 0183 Option FR-7062/7112: RDP-122FR-7252: RDP-123 Auto Plotter ARP-10 Navigationdevice IEC 1162* (In/Out) IEC 1162* (In/Out) Video Sounder Gyrocompass Gyro Converter AD-100 Integrated Heading Sensor PG-1000 FR-7062/7112: 12/24/32 VDCFR-7252: 24/32 VDC Re...

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Page 13 - How Radar Determines Range; The Radar Display

1-1 1.1 What is Radar? The term “RADAR” is an acronym meaningRAdio Detection And Ranging. Although thebasic principles of radar were developed dur-ing World War II, echoes as an aid to naviga-tion is not a new development. 1.2 How Ships Determined Position Before Radar Before the invention of radar,...

Page 14 - Figure 1-1 How radar works

1-2 A B C D Own ship(radar) D A B C Heading marker Targets Own shipin center (A) Bird's eye view of situation (B) Radar picture of (A) Range and bearing of a target, relative to own ship, are readable on the PPI. Figure 1-1 How radar works

Page 15 - Control Description; Figure 2-1 Control panel

2-1 2. BASIC OPERATION 2.1 Control Description POWER F 1 F 2 BRILL SHIFT ZOOM ECHOTRAIL MODE GUARD ALARM EBL OFFSET SELECT CANCEL ACQ ENTER EBL 1 VRM 1 VRM 2 TLL MENU EBL 2 RANGE OFF ECONOMY STBY T X GAIN HM OFF(PUSH) A/C SEA A/C AUTO(PUSH) ES(PUSH) A/C RAIN Turns power on.Press together with [STBY/...

Page 16 - Display Indications and Markers; Figure 2-2 Display indications

2-2 2.2 Display Indications and Markers HDG 234.5 ° SP HU RM 0. 125 NM 0. 0625 TRAIL 30min ZOOM ES1 AUTO 25 : 38 G (OUT) IR2 VRM 0.048NM0.100NM 13.5 R 0.142NM A/CAUTOEBL/PI345.6 R 23.0 R NR 2NDECHO Tuning status (P.3-8) Echo trail time (P.3-4) Guard Zone (P.3-4) Zoom (P.2-9) or Off center (P.2-9) Ec...

Page 17 - Economy mode; Figure 2-3 Typical navigation data display

2-3 2.3 Turning the Radar On/Off Press the [POWER] key to turn the radar on. To turn the radar off, press the [POWER] keytogether with the [STBY/TX] key. When the radar is turned on, the control panellights and a timer displays the time remainingfor warm up of the magnetron (the device whichproduces...

Page 18 - Selecting the Range; Selecting the range; Adjusting Picture Brilliance; How the A/C SEA control works

2-4 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 deadahead even though a difference mayexist between heading and BRG toWPT. Note 3:When cross track error exceeds 1 nm on either side, the XTE mark starts...

Page 19 - Adjusting the A/C SEA control; Confirm that the sensitivity is properly ad-; Tip for adjusting the A/C SEA; CAUTION

2-5 Adjusting the A/C SEA control The proper setting of the A/C SEA should besuch that the clutter is broken up into small dots,and small targets become distinguishable. If the control is set too low, targets will be hid-den in the clutter, while if it is set too high, bothsea clutter and targets wi...

Page 20 - Note: The radar begins operation with last; True motion; Figure 2-6 Heading marker and north marker; Figure 2-7 Echo stretch; Note1:This function magnifies not only targets

2-6 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 andthe display mode indication at the top left-handcorner of the display change in the sequence ofHU RM...

Page 21 - Measuring the Range; Measuring range by range rings; Figure 2-8 Display bottom, showing location; Note: You can display the range readout of; Measuring the Bearing; Measuring bearing by cursor; Operate the trackball to bisect the target with

2-7 2.14 Measuring the Range You can measure the range to a target threeways: by the range rings, by the cursor, and bythe VRM (Variable Range Marker). Measuring range by range rings Count the number of rings between the centerof the display and the target. Check the rangering interval and judge the...

Page 22 - Note: The bearing readout for the EBL and; Tips for measuring bearing; Using the Offset EBL; Predicting collision course; Figure 2-11 Predicting collision course by

2-8 6.0 NM2.0 EBL1 bearingEBL1 bearing 40.0° R135.0° R EBL EBL1 EBL2 Target Cursor CursorBearing 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 relativeor true bearing (true bearing requiresheading sensor in...

Page 23 - Figure 2-13 Shifting the picture; Cancelling shifted picture; Figure 2-14 Zoom function; Note: Z o o m i s c a n c e l l e d w h e n r a n g e o r; Cancelling zoom

2-9 To cancel, press the [EBL OFFSET] key. VRM1 EBL1 bearing 70.0° R VRM 4.5 NM VRM1range EBL1 A B 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 75%of the range in use to v...

Page 25 - Figure 3-3 Index lines; Turning the index lines on/off; Select “Index Line on” by pressing the; Rotating the index lines; Basic Menu Operation; Operate the trackball to select the item. For; Change brill from Off to 1.; Figure 3-2 Messages for RINGS menu

3-1 3.2 Index Lines The index lines are useful for maintaining aconstant distance between own ship and a coast-line or partner ship. They are linked with EBL2and VRM2. EBL2 Index lines Figure 3-3 Index lines Turning the index lines on/off 1. Press the [MENU] key. 2. Select “INDEX LINE” by the trackb...

Page 26 - Figure 3-4 Radar interference; Selecting Pulsewidth; Select “OTHER MENU” and press the; Figure 3-5 OTHER MENU

3-2 3.3 Suppressing Radar Interference Radar interference may occur when near anothershipborne radar operating in the same frequencyband as your radar. Its on-screen appearance ismany bright dots either scattered at random orin the form of dotted lines extending from thecenter to the edge of the dis...

Page 27 - Waypoint Mark; Displaying Navigation Data; Figure 3-6 Typical navigation data display

3-3 HDG 234.5° SP HU RM 0. 125 NM 0.0625 TRAIL 30min ZOOM ES1 AUTO 25:38 G (OUT) VRM 0.048NM0.100NM 13.5 R ° 0.142NM A/CAUTOEBL/PI345.6 R 23.0 R °° Waypoint Mark NavigationData OWN SHIP 34° 56. 12N135° 34. 56ESPD 35.0KT WAYPOINT 0.09 NM 50.0°MTTG 00:20 + CURSOR 34° 29. 98N 136° 35. 77ETTG 01:00 "...

Page 28 - Figure 3-7 How the echo trail feature works; Note: Trails are restarted when range or; When the elapsed time clock counts up to; In alarm; Single

3-4 3.6 Echo Trail You can show the movement of all radar tar-gets relative to your vessel in afterglow. Thisfunction is useful for alerting you to possiblecollision situations. Starting echo trail Press the [ECHO TRAIL] key. T R A I L , t h e e c h o t r a i l t i m e s e l e c t e d ( o n“OTHER ME...

Page 29 - Figure 3-8 In and Out alarm; Setting a guard zone; Mentally create the guard zone you want to; Figure 3-9 How to set the guard zone; Silencing the audible alarm

3-5 IN ALARM OUT ALARM Guard zone Dashed line: no 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 ont a rg e t...

Page 30 - Notes on the guard alarm; Figure 3-10 How watchman works; How watchman works; with the guard alarm function.; Cancelling watchman; Note 1:Watchman can be used without a guard

3-6 Notes on the guard alarm ¡ The alarm is a useful anti-collision aid, butdoes not relieve the operator of the respon-sibility to also keep a visual lookout for pos-sible collision situations. ¡ When the radar range is less than one half ofthe guard zone range, the guard zone disap-pears and “G (I...

Page 31 - OTHER MENU Description; The table below summarizes the OTHER MENU.

3-7 3.9 OTHER MENU Description The table below summarizes the OTHER MENU. Table 3-2 OTHER MENU Description m e t I n o i t p i r c s e D . 1 r e m m i D l e n a P . t h g i l k c a b l e n a p f o l e v e l s t c e l e S . 2 l l i r B k r a M P W d n a e n o z d r a u g , r o s r u c , L B E , M R V...

Page 32 - Figure 3-10 Function menu; Suppressing Noise; Note: A u t o m a t i c t u n i n g m a y n o t w o r k

3-8 3.10 Function Keys The function keys (F1 and F2) work like theauto-dialing feature of a telephone, automati-cally executing the function assigned to them.The assigned function can be turned on/off bypressing appropriate function key again. Default settings F1: Display NAV/ARPA data F2: Noise rej...

Page 33 - Figure 4-1 Multiple echoes

4-1 4. FALSE ECHOES 4.2 Side-lobe Echoes Every time the antenna rotates, some radiationescapes on each side of the beam—called“side-lobes.” If a target exists where it can bedetected by the side-lobes as well as themain-lobe, the side-lobe echoes may be repre-sented on both sides of the true echo at...

Page 34 - Figure 4-3 Indirect echoes; Blind and Shadow Sectors; Figure 4-4 Blind and shadow sectors

4-2 4.3 Indirect Echoes Indirect echoes may be returned from either apassing ship or returned from a reflecting sur-face on your own ship, for example, a stack. Inboth 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 samebe...

Page 35 - This chapter tells you how to keep your radar in; Preventive Maintenance; Regular maintenance is important for good; Replacing the Fuse; Table 5-1 Recommended maintenance program; Period Item

5-1 5. MAINTENANCE & 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. 5.1 Preventive Maintenance Regular maintenance is important for good performance. Always keep the equipment as...

Page 36 - Table 5-2 Troubleshooting table

5-2 5.3 Troubleshooting Table 5-2 contains simple troubleshooting pro-cedures which you can follow to try to restorenormal operation. If you cannot restore normaloperation, do not attempt to check inside any unitof the radar system. Any repair work is best leftto a qualified technician. Table 5-2 Tr...

Page 40 - NOTICE; Keys Used for Auto Plotter; Acquires the target selected with the cursor.; ARP-10 MENU operation; Cancels the tracking of all targets.

6-2 6.1 General The Auto Plotter ARP-10 is an optional circuitboard which is accommodated in the displayunit of the FR-7062 radar. The Auto Plotter permits manual or automaticacquisition and automatic tracking of up to 10radar targets. An internal microprocessor cal-culate target data such as speed ...

Page 41 - Activating the Auto Plotter; controls for proper radar picture.; Figure 6-2 ARP display

6-3 6.3 Activating the Auto Plotter To activate the ARP-10, follow the steps shownbelow. 1. Adjust the GAIN, A/C SEA and A/C RAIN controls for proper radar picture. 2. Press the [MENU] key to open the main menu. 3. Operate the trackball to select “ARP-10 MENU”. 4. Press the [ACQ/ENTER] key. The menu...

Page 42 - Automatic Acquisition; Setting auto acquisition area; Figure 6-4 Auto acquisition area; Deactivating the auto plotter; Operate the trackball to select “Off”.; Manual Acquisition; operating the trackball.; LARGE SQUARE

6-4 Note 3: When auto acquisition mode (AutoACQ) is on, up to five targets can be acquired.For details, see 6.5 Automatic Acquision. WARNING When a tracked target nears another tracked target, the targets may be "swapped." When two targets come closeto each other, one of the two can becomea ...

Page 43 - Individual targets; Displaying Target Data; To turn ARPA data on

6-5 6.6 Terminating Tracking of Targets When the ARP-10 has acquired 10 targets, nomore acquisition occurs unless targets are lost.Should this happen, cancel tracking of indi-vidual targets or all targets by the proceduredescribed below. Individual targets Place the cursor (+) on the target which yo...

Page 44 - Mode and Length of Vectors; True or relative vector; Lost target alarm

6-6 6.8 Mode and Length of Vectors True or relative vector Target vectors are displayed in relative or truemode. Own ship does not have a vector in rela-tive mode. Vector length From the ARP-10 MENU, Vector Length canbe set to 30 seconds, 1, 3, 6, 15 or 30 minutesand the selected vector time is indi...

Page 45 - SPECIFICATIONS OF MARINE RADAR; TRANSCEIVER MODULE

SP - 1 SPECIFICATIONS OF MARINE RADAR FR-7062/7112/7252 1. GENERAL (1) Indication System PPI Daylight display, raster scan, 8 tones in monochrome (2) Range, Pulselength (PL) & Pulse Repetition Rate (PRR) (range max. FR-7062: 64 nm, FR-7112: 72 nm, FR-7252: 96 nm) Range (nautical miles) PL PRR 0....

Page 49 - Index

IN-1 Index A Acquisition ............................................... 6-4A/C RAIN ................................................ 2-5A/C SEA ................................................ 2-4ARPA ....................................................... 6-2 B Bearing ...............................