Furuno 841 MARK-2 manual Display unit is designed to be mounted on a tabletop, Mounting procedure

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Make sure you allow enough clearance both to get to the connectors behind the unit and to allow you to get your hands in on both sides to loosen or tighten the mount- ing knobs. Make sure you leave at least a foot or so of “service loop” of cables be- hind the unit so it can be pulled forward for servicing or easy removal of the con- nectors.

A magnetic compass will be affected if placed too close to the display unit. Ob- serve the minimum compass safe distances to prevent deviation of a magnetic com- pass: standard compass, 0.7 meters, and steering compass, 0.5 meters.

Mounting procedure

The display unit is designed to be mounted on a tabletop.

1)Using the hanger as a template, mark screw locations in the mounting location.

2)Fix the hanger to the mounting location with four M6 tapping screws (supplied).

3)Fit the knob bolts to the display unit.

4)Install the display unit in the hanger.

5)Tighten the knob bolts securely.

10mm

222(8.7") 236(9.3")

Cutting size for flushmount

4 - ø6

FIXING HOLES

 

274

 

 

(10.79")

 

 

130

 

 

(5.12")

 

*80

 

 

(3.15")

18

 

(0.71")

*140

 

238

(5.51")

 

 

 

(9.37")

10

 

100

(0.39")

 

(3.94")

18 20

* :SERVICING CLEARANCE (0.71") *80 (0.79") (3.15")

Figure 5-11 How to mount the display unit

32

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Contents Marine Radar B . N o . O M E 3 4 4 4 Safety Instructions Do not open the equipment Stay away from transmitting antennaDo not disassemble or modify the equipment Do not operate the equipment with wet handsIii Use the correct fuseTable of Contents Features ForewordSpecifications Antenna UnitTransceiver Module contained in radome Display UnitInterface Nmea Installation Materials CP03-15xx Accessories FP03-05900Equipment List Complete SetOptional Equipment Configuration Model 841 MARK-2Principle of Operation How radar works Operation Control DescriptionDisplay Indications and Markers Turning the Radar On and Off5NM 675NM 220.9R 0.646NM 308.7RAdjusting LCD Backlighting and Display Tone Adjusting Control Panel BrillianceTransmitting Selecting the RangeSTC MAN Auto Adjusting GAIN, STC, A/C Rain and FTCGeneral procedure Tuning the Receiver Adjusting A/C RainAdjusting FTC How to tune manuallyMeasuring the Range Measuring the BearingSee the table on the next Menu OperationPress the Menu key to open the menu. The main menu appears Menu description Menu FunctionSelecting the Display Mode 11 Display modesSelecting the Presentation Mode Window DisplayCourse-up, you may select CU or WPT- UP, on the menu CU course-upGuard Alarm Setting the guard zoneSilencing the audible alarm WPT-UP waypoint-upCanceling the guard zone Suppressing Radar InterferenceSelecting Pulselength Suppressing Noise InterferenceOff Centering the Display Echo Trails Navigation Data DisplaySetting up the nav data display Echo Stretch magnifying long range echoesPress the Menu key Select Nav Data and press the ENT key Turning echo stretch on or offSelecting Unit of Measurement for Range Selecting Bearing ReferenceWatchman Turning on watchmanCanceling watchman Erasing the Heading MarkerDeselecting Ranges Displaying Navigation Data During Stand-byVisual Alarm Indications Error Visual alarmOutputting Cursor Position to Navigator Displaying Cursor Position, Range and Bearing to CursorInterpreting the Display Radar Wave and Radar HorizonTarget Properties and Radar Wave Reflection Super-refractionBearing Resolution Range ResolutionFalse Echoes Multiple echoesSide-lobe echoes Indirect echoesNautical Chart and Radar Picture Maintenance & Troubleshooting Safety InformationPeriod Check point Remarks Preventative MaintenanceReplacing the Fuse Troubleshooting But ThenSelf Test Self Test Mounting Antenna Unit Installation Siting, handling considerations Holes for antenna unit Parallel with the fore and aft lineDisplay Unit Installation Mounting considerationsMounting procedure Display unit is designed to be mounted on a tabletopSignal cable connection ConnectionsTo connect external equipment to the OP- Tion connector For E/SNavigation aid, video sounder connection Heading Sensor ConnectionInstallation Check List RadarFollow the procedure below to obtain proper radar picture Initial Adjustment of PictureDisplaying the Installation Menus Sweep Timing Entering Initial SettingsRelative Bearing Alignment Closing the Installation Menus Press the Menu key and turn off the powerPage Page Page Page Page Page