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Furuno 861 Operator's Manual
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Furuno 861 Operator's Manual

Furuno 861 Operator's Manual

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MARINE RADAR
MODEL 851/861
MODEL

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Summary of Contents for Furuno 861

  • Page 1 Back MARINE RADAR MODEL 851/861 MODEL...
  • Page 3 If you have any questions regarding these safety instructions, please contact a FURUNO agent or dealer. The level of risk appearing in the notices is defined as follows:...
  • Page 4 Safety Instructions for the Operator WARNING WARNING Do not disassemble or modify the Do not open the equipment. equipment. Hazardous voltage which can Fire electrical shock or serious injury can cause electrical shock, burn or result. serious injury exists inside the equipment.
  • Page 5 EQUIPMENT LIST ...... ix 2.30 Outputting Cursor Position to CONFIGURATION OF Navigator ......... 20 2.31 Displaying Cursor Position, Range MODEL 851/861 ......xi and Bearing to Cursor ...... 20 2.32 Visual Alarm Indications ....20 1. PRINCIPLE OF OPERATION 3. INTERPRETING THE DISPLAY 1.1 What is Radar?........
  • Page 6 FURUNO rep- supply and consumes about 40 W (851); resentative or other qualified technician. The 50 W (861, 24 rpm); and 70 W (861, 48 importance of a thorough installation can- rpm). not be overemphasized.
  • Page 7 9. Receiver front end (Microwave IC) SPECIFICATIONS– MODEL 851 10. Bandwidth 7 MHz 11. Duplexer Antenna Unit Circulator with diode limiter Display Unit 1. Radiator Slotted waveguide array 2. Radiator length 1. Indication system 100 cm PPI raster scan 3. Horizontal beamwidth 2.
  • Page 8 With navigation input (option): Course SPECIFICATIONS– (CRS), Latitude and longitude, Speed MODEL 861 (SPD), Range and bearing to waypoint (WP), Cross Track Error (XTE), Date and time, Water depth, Water temperature. (This radar has only two Antenna Unit data input ports. To receive data from more than two equipment install an 1.
  • Page 9 8. Tuning (WATCHMAN) Automatic or manual With navigation input (option): Course 9. Receiver front end (Microwave IC) (CRS), Latitude and longitude, Speed (SPD), Range and bearing to waypoint 10. Bandwidth (WP), Cross Track Error (XTE), Date 7 MHz and time, Water depth, Water 11.
  • Page 10 Interface NMEA (MODEL 851/861) Input Output Own ship’s position : TLL : On using “HM OFF” key. GAA> RMA> RMC> GLL RSD : An interval of four seconds Speed : RMA>RMC>VTG>VHW Heading(True): HDT>VHW>HDG>VHW>HDM Heading (Magnetic): HDM>VHW>HDG>VHW>HDM Course (True): RMA>RMC>VTG Course (Magnetic) VTG>RMA>RMC...
  • Page 11 : e l l a i : e l ) . e : e l : e l MODEL 861 t a i s t r l l a i t a : e l l a i : e l ) .
  • Page 12 Installation Material t a l ) . e Spare Parts (SP03-12100) Accessories (FP03-05900)
  • Page 13 CONFIGURATION OF MODEL 851/861 Antenna Unit MODEL 851/861 (In/Out) IEC 1162* Remote Display FMD-8010 IEC 1162* Video Sounder FMD-811 (In) Fluxgate Heading Sensor C-2000 External Alarm Gyro Gyro Converter Buzzer OP03-136 AD-100 *Equivalent to NMEA0183 12V: 10A Option 24V: 5A...
  • Page 14 1. PRINCIPLE OF 1.4 How Radar Determines Bearing OPERATION The bearing to a target found by the radar is determined by the direction in which the radar scanner antenna is pointing when it 1.1 What is Radar? emits an electronic pulse and then receives a returning echo.
  • Page 15 Heading marker Targets Range and bearing of a target, relative to own ship, are readable on the PPI. Own ship Own ship in center (radar) (A) Bird's eye view of situation (B) Radar picture of (A) Figure 1-1 How radar works...
  • Page 16 2. OPERATION 2.1 Control Description Omnipad Shift cursor, VRM and EBL; select items and options on menu. Registers selection MENU Opens/closes menus. on menus. Press to adjust gain, ECHO Erases heading marker; A/C RAIN, STC selects cursor data (Lat/Long, R/B); and FTC.
  • Page 17 2.2 Display Indications and Markers Heading (requires heading data) Range Echo trail, AUTO tuning TRAIL AUTO Echo trail elapsed time, Range ring interval HDG 326.8° 0:00 echo trail time, tuning indicator G (IN) Presentation mode FTC1 Guard zone Off center CENTER Fast Time Constant Pulsewidth...
  • Page 18 2.4 Transmitting 2.6 Adjusting LCD Backlighting and Display After the power is turned on and the mag- Tone netron has warmed up, ST-BY (Stand-By) appears at the screen center. This means the The [BRILL] key adjusts the LCD back- radar is now fully operational. In stand-by lighting in eight levels, including off.
  • Page 19 2.8 Adjusting GAIN, STC, A/C contrast between desired echoes and the background noise on the display. RAIN and FTC General procedure How to adjust STC (suppressing sea clutter) The [ECHO] key enables adjustment of the gain, STC, A/C RAIN and FTC. Echoes from waves can be troublesome, covering the central part of the display with 1) Press the [ECHO] key.
  • Page 20 How to adjust A/C RAIN and FTC 2.9 Tuning the Receiver (suppressing rain clutter) The receiver can be tuned automatically or The vertical beamwidth of the scanner is de- manually. For automatic tuning the receiver signed to see surface targets even when the is tuned each time you switch from stand- ship is rolling.
  • Page 21 2.10 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). Target By range rings Press the [RINGS] key to display the range rings.
  • Page 22 To erase the EBL, press and hold down the 2.12 Menu Operation [EBL] key for about three seconds. The menu, consisting of 6 sub menus, mostly contains less-often used functions which once preset do not require regular adjust- ment. To open or close the menu, press the Target [MENU] key.
  • Page 23 Table 1-1 Menu description Menu Function 1. Selects control panel backlighting; four is 1. BACKLIGHT/BRILLIANCE MENU maximum backlighting. Select item and option 2. Selects brilliance for echo trails and keys. markers; four is maximum brilliance. 1. Panel 1 2 3 4 2.
  • Page 24 2.13 Selecting the Display Each time the key is pressed the display mode changes in one of the sequences shown Mode below, depending on equipment connected and menu settings. The display mode may be selected with the [DISP MODE] key. Four modes are avail- Note: In the window display mode, the [DISP able (with navigation input): Normal, Nor- MODE] key reselects zoom area.
  • Page 25 [ENT]. display. Note 2: The wide display does not function on Figure 2-12 How to select the 48 and 64(861) nm. the area to zoom Selecting the type of window display 2.15 Selecting the Presentation 1) Press the [MENU] key.
  • Page 26 WPT-UP (waypoint-up) Selecting guard zone type The guard alarm can be set to sound on tar- An azimuth stabilized display in which the gets entering (guard in) or exiting (guard out) line connecting the center with the top of the guard zone. Select type of guard zone the display indicates the bearing to the “TO”...
  • Page 27 reverse video. You can silence the alarm by precipitation. As the level of these returns pressing the [GUARD] key. When this is varies with environment, the operator done, G (ACKN) replaces G (IN) (or G should properly adjust the STC, gain (sen- (OUT)).
  • Page 28 IR and level selected appear at the top right 2.20 Off Centering the Display corner on the display when the interference rejection circuit is turned on. Note: This function is not available on 48 and 64nm. Your vessel’s position can be shifted any- 2.18 Suppressing Noise where within 75% of the effective display Interference...
  • Page 29 Continuous trail 2.21 Echo Trails The maximum continuous trail time is 99 You can show the trails of targets in after- minutes and 59 seconds. When the elapsed glow. This function is useful for alerting you time clock counts up to that time the elapsed to possible collision situations.
  • Page 30 4) Select Nav Data Disp to OFF or ON. 5) Select Pos Disp Mode to L/L (latitude and AUTO HDG 326.8° longitude or TD (Loran C). 6) Select unit of depth measurement to meters, fathoms, or feet. 7) Select unit of measurement for water tem- perature to Centigrade or Fahrenheit.
  • Page 31 3) Select Echo Stretch. 2) Select Mode & Function and press the [ENT] key. 4) ON or OFF. 3) Select EBL Ref. 5) Press the [ENT] key followed by the [MENU] key. ES appears at the top right 4) Select Rel(ative) or True. side on the display when the echo stretch 5) Press the [ENT] key followed by the feature is on.
  • Page 32 2) Select the Nav Data menu and press the 2.28 Deselecting Ranges [ENT] key. This radar has 14 or 15 (MODEL 861) 3) Select STBY Display to NAV and press ranges, some which you may not require. the [ENT] key.
  • Page 33 2.30 Outputting Cursor Position to Navigator Cursor position (NMEA0183 data sentence TLL) can be output to the navigator con- nected to this radar by pressing and holding down the [HM OFF] key. 2.31 Displaying Cursor Position, Range and Bearing to Cursor The cursor data indication at the bottom of the display can show cursor position in lati- tude and longitude or the range and bearing...
  • Page 34 Radar horizon 3. INTERPRETING Radar is essentially a “line-of-sight” phe- THE DISPLAY nomenon. That means you have just about the same range to horizon with a radar as you do with your own eyes. However under normal atmospheric conditions, the radar As an aid to navigation, radar can be a very horizon is 6% greater than the optical hori- valuable tool.
  • Page 35 On the other hand, hulls made from wood 3.4 Bearing Resolution or fiberglass return much weaker echoes. Bearing resolution is a measure of the capa- Vertical surfaces, such as a cliff, are good bility of a radar to display as separate tar- targets provided they face the radar.
  • Page 36 Indirect echoes oes may be observed on the display at double, triple or other multiples of the ac- Indirect echoes may be returned from either tual range of the target as shown in Figure a passing ship or returned from a reflecting 3-4.
  • Page 37 Blind and shadow sectors 3.6 Nautical Chart and Radar Picture Funnels, stacks, masts, or derricks in the path of antenna may reduce the intensity of the Under normal conditions, a picture which radar beam. If the angle subtended at the is similar to a nautical chart can be obtained scanner is more than a few degrees a blind on the radar display.
  • Page 38 4.1 Preventative 4. MAINTENANCE & Maintenance TROUBLESHOOTING Regular maintenance is important for good performance. Always keep the equipment as free as possible from dirt, dust, and water This chapter tells you how to keep your ra- splashes. Make sure all screws securing the dar in good working order.
  • Page 39 4.3 Troubleshooting Table 4-2 contains simple troubleshooting procedures which you can follow to try to restore normal operation. If you cannot re- store normal operation, do not attempt to check inside any unit of the radar system. Any repair work is best left to a qualified technician.
  • Page 40 4.4 Self Test The self test facility checks the keyboard, ROM and RAM for proper operation. You may run the test as follows. 1) Press the [MENU] key. 2) Select Self Check. The following display appears. [SELF TEST] KEY BOARD TEST Press each key.
  • Page 41 • Locate the antenna base in parallel with 5 INSTALLATION the water surface. • The antenna base is made of aluminum, which will corrode if the mounting plat- form is made of iron. For this reason paint WARNING the mounting platform if it is made of iron. •...
  • Page 42 The procedure for connecting the signal cable to the antenna unit is as following. 1) Through a pipe or waterproof cable grand fitted on the wheelhouse top or bulkhead. Ship's Ship's 2) Unfasten four screws at bottom of the scanner base to remove the cable gland assembly.
  • Page 43 Mate the 15- and 9- way plugs with jacks radiator to the radiator bracket with the J812 and J811 on the transceiver mod- FURUNO logo on the radiator facing ule, respectively. Connect the 7-way plug ship's bow. to jack J701 on the MP Board. Secure the cable between RTB-9100 and J701 with the cable tie as shown in Figure 5-8.
  • Page 44 6) Fasten the ground wire (black) of the sig- • Even though the picture is quite legible nal cable to the chassis as shown in Fig- even in bright sunlight, keep the display ure 5-8. unit out of direct sunlight or at least shaded because of heat that can build up 7) Loosely fasten the scanner housing cover.
  • Page 45 10mm 222(8.7") Cutting size for flushmount 4 - ø6 FIXING HOLES (10.55") (5.12") (3.15") (0.59") *140 (5.51") (9.37") (0.39") (3.94") * :SERVICING CLEARANCE (0.79") (0.59") *80 (3.15") Figure 5-13 How to mount the display unit Connections CAUTION Connect the signal and power cables, the When powering the equipment with 24/32 VDC, ground wire and optional equipment as replace 10 A fuse in the power cable with...
  • Page 46 TYPE Connect signal cable SER.NO. DATE COMPASS SAFE DISTANCE from antenna here. M STEER EQUPMENT CLASS FURUNO ELECTRIC CO., LTD CAUTION Ground terminal Connect ground wire between Tighten the boot-band here and ship's ground. securely to ensure watertightness. See page39...
  • Page 47 Heading Sensor Connection SPU9180 Heading signal can be connected to the Echosounder TLL, RSD “HDG” connector. 10 m cable assembly is optionally available. Video plotter MODEL 851/861, FMD-811 Type Code no. Remarks MJ-A6SPF0007-100 000-125-237 C-2000 The position data from navaid can be...
  • Page 48 7. Connect the NMEA cable to the connec- tor assy (03-1796/5P, supplied with ra- dar) as shown the figure on next page. 8. Connect the 5P connector to J51 on SPU Board. MODEL 851/861, FMD-811 Solder Echosounder NMEA cable Other Equipment (Telesounder data not be mixed.)
  • Page 49 6) Select minimum range. Press the [ECHO] key and press the omnipad to select STC- CAUTION AUTO, if it is not already selected. If it is necessary to open the display unit, be sure the rear cover is fitted to the front chassis properly when closing the rear cover.
  • Page 50 3) Press the omnipad to select Installation 5) Press the [ENT] key. Setup 1 and press the [ENT] key. Leave the menu open to complete the next several adjustments. INSTALLATION SETUP 1 Select item and option keys. 1. Key Beep OFF ON 5.7 Relative Bearing 2.
  • Page 51 4) Press the omnipad to bisect the target se- lected at step 2 with the EBL. 5) Press the [ENT] key, 6) As a final test, move the boat towards a small buoy and confirm that the buoy shows up dead ahead on the radar when (1) Correct (2) Target pushed (3) Target pushed...
  • Page 52 Signal cable connection 1. Connect the signal cable to DJ-1 on the rear panel of the display unit. Rubber cover Boot-band DJ Connector Cable DJ-1 Display unit 2. Cover the connector with the rubber cover. The projection on the connector base is inserted into the groove on the rubber cover.

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