Furuno DRS4A Installation Manual

SYSTEM CONGFIGURATION ....................................................................ii EQUIPMENT LISTS....................................................................................iii 1. MOUNTING............................................................................................1 1.1 Mounting Considerations..............................................................................................1 1.2 Mounting Procedure for DRS4A/6A..............................................................................2 1.3 Mounting Procedure for DRS2D4D ..............................................................................7 2. WIRING ..................................................................................................8 2.1 Wiring of DRS4A/6A .....................................................................................................9 2.2 Wiring of DRS2D/4D...................................................................................................11 3. ADJUSTMENT.......................................................................................9 3.1 Selecting Radar Source................................................................................................9 3.2 Heading Alignment .......................................................................................................9 3.3 Setting the Antenna Height...........................................................................................9 OUTLINE DRAWINGS............................................................................. D-1 INTERCONNECTION DIAGRAM ............................................................ S-1

working on the antenna unit. Serious injury or death can result if someone falls from the radar mast. Model Distance to 100 W/m2 point Distance to 10 W/m2 point DRS4A Nil 1.20 m Nil 1.20 m 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 trans- mitting antenna at a close distance. Distances at which RF radiation levels of 100 and 10 W/m2 exist are given in the table below. Note: If the antenna unit is installed at a closedistance in front of the wheel house, your administration may require halt of transmission within a certain sector of antenna revolution. This is possible - Ask your FURUNO representive or dealer to provide this feature. CAUTION Do not open the equipment unless totally familiar with electrical circuits and service manual. Only qualified personnel should work inside the equipment. Observe the following compass safe distance to prevent deviation of a ma gnetic compass. Ground the equipment to prevent electrical shock and mutual interference. Construct a suitable service platform from which to install the antennaunit. Serious injury or death can result if the power is left on or is applied while the equipment is being installed. Turn off the power at the mains switch-board before beginning the installation. Fire, electrical shock or serious injury can result if the power is left on or is applied while the equipment is being installed. Model Standard Steering DRS4A 0.80 m 0.50 m DRS6A 0.85 m 0.55 m Radio Frequency Radiation Hazard DRS6A SAFETY INSTRUCTIONS DRS2D DRS4D 1.35 m 0.80 m 1.40 m 0.85 m DRS2D Nil 0.40 m 0.1 m 1.40 m DRS4D

: Optional Supply : Local Supply Multi Function Display BlackBox MFDBB Multi Function Display MFD8/12 Power Supply Unit PSU-012* *For MFD8 only NMEA 2000 (Under development) RADAR SENSOR DRS2D/DRS4D

Optional supply Name Type Code No. Qty Remarks Radar Sensor XN10A-RSB-118-092 - 1 For DRS4A XN12A-RSB-118-093 - 1 For DRS6A DRS2D - 1 Radome DRS4D - 1 Radome Two-way Cable MOD-ASW0001-010 1 10 m MOD-ASW0001-015 15 m MOD-ASW0001-020 20 m MOD-ASW0001-030 30 m Installation Mate- rials 1 set Name Type Code No. Qty Remarks Junction Box J-BOX 1

a suitable platform. Locate the radar sensor where there is a good all-round view. Any obstruc- tion will cause shadow and blind sectors. A mast for instance, with a diameter considerably less than the horizontal beamwidth of the radiator, will cause only a small blind sector, but a horizon- tal spreader or crosstrees in the same horizontal plane as the radar sensor would be a much more serious obstruction; you would need to place the radar sensor well above or below it. • It is rarely possible to place the radar sensor where a completely clear view in all directions is available. Thus, you should determine the angular width and relative bearing of any shadow sectors for their influence on the radar at the first opportunity after fitting. • A magnetic compass will be affected if the radar sensor is placed too close to it. Observe the compass safe distances mentioned in the SAFETY INSTRUCTIONS to prevent interference to a magnetic compass. • Do not paint the radiator aperture, to ensure proper emision of the radar waves. • When this radar sensor is to be installed on large vessels, consider the following points: • The signal cable run between the radar sensor and MFDBB, MFD8 or MFD12 comes in lengths of 10 m, 15 m, 20 m and 30 m. • Deposits and fumes from a funnel or other exhaust vent can adversely affect the aerial per- formance and hot gases may distort the radiator portion. The radar sensor must not be mounted where the temperature is more than 70°C. As shown in the figure below, the radar sensor may be installed on the bridge, on a common mast or on the radar mast. For DRS4A/6A (a) On bridge (b) Common mast (c) Radar mast

Referring to the outline drawing at the back of this manual, drill five holes in the mounting platform: four holes of 15 mm diameter for fixing the radar sensor and one hole of 25-30 mm diameter for the signal cable. 1.2.1 Fastening the radiator to the radiator bracket 1. Remove the radiator cap from the radiator bracket. 2. Coat surface between the antenna radiator and the radiator bracket with silicone sealant as shown in the figure below. 3. Coat threaded holes on the antenna radiator with silicone sealant. 4. Grease the O-ring and set it to the radiator bracket. Antenna unit Antenna unit Antenna unit Antenna unit RADIATOR BRACKET (top view) Coat hatched area with silicone sealant. 10mm

bracket with the hex bolts, flat washers and spring washers. 1.2.2 Mounting the radar sensor The radar sensor can be mounted using the fixing holes on the outside (200 x 200 mm) or inside (140 x 150 mm) the radar sensor. Using outside fixing holes of radar sensor Use the hex bolts (supplied) to mount the radar sensor as below. 1. Lay the corrosion-proof rubber mat (supplied) on the mounting platform. 2. Lay the radar sensor on the mounting platform, orienting it as shown below. Flat washer Spring washer Hex bolt (M8 x 30) Radiator bracket Coat bolts with silicone sealant. Antenna radiator O-ring Coat threaded holes with silicone sealant. Ground terminal Rubber mat Bow mark STERN BOW

housing, as shown below. 4. Past flat washers (M12, supplied), spring washers (M12, supplied) and nuts (M12, supplied) onto hex. bolts. Fasten by tightening nuts. Do not fasten by tightening the hex. bolts; seal washers may be damaged. 5. Coat flat washers, spring washers, nuts and exposed parts of bolts with anticorrosive sealant. 6. Prepare ground point in mounting platform (within 300 mm of ground terminal on radar sen- sor) using M6 x 25 bolt, nut and flat washer (supplied). 7. Run the ground wire (RW-4747, 340 mm, supplied) between the ground terminal and ground point. CAUTION Do not lift the radar sensor by the radiator; lift it by the housing. The radiator may be damaged. Hex. bolt Seal washer Flat washer Spring washer Nut Antenna unit Mounting platform Silicone sealant Flat washer Rubber mat Seal washer

Ground wire Hex. bolt Flat washer Spring washer Flat washer Hex. nut Silicone sealant Hex. nut Weld here. Silicone sealant Ground wire antenna unit OR Flat washer Spring washer Ground wire GROUND TERMINAL GROUND POINT Hex. nut

This method requires removal of the RF unit from the radar sensor to access inside fixing holes. Use hex bolts, flat washers, spring washers and nuts (local supply) to mount the radar sensor. 1. Unfasten four bolts from the cover to open the radar sensor. 2. Unplug the PCS connector from RF unit. 3. Separate upper chassis from lower chassis by removing two bolts (M8x25). 4. Remove RF unit by unfastening four hex bolts. 5. Lay the corrosion-proof rubber mat (supplied) on the mounting platform. 6. Fasten the lower chassis to the mounting platform with hex bolts, spring washers, flat washers and nuts (local supply), and then coat flat washers, nuts and exposed parts of bolts with sili- cone sealant. Cut a slit in the rubber bushing and insert bolt into the bushing. Do not use seal washers. 7. Remount RF unit. 8. Apply silicone sealant into four outside fixing holes. 9. Do steps 6-8 in “Using outside fixing holes of radar sensor”. Note: When closing the cover, set the gaskets to grooves in the bottom chassis, then tighten bolts. RF unit Hex bolt 4 pcs. Bolt M8X25, 2 pcs. Upper chassis Lower chassis PCS connector

1. Remove mounting hardware at the bottom of the radar sensor, four each of hex bolts (M10x20), spring washers and flat washers. Save the spring washers and flat washers to use them to fix the radome base to the platform, at step 3. If the thickness of the mounting platform is 5 mm or less also save the bolts. 2. Construct a platform (wood, steel or aluminum) 6-10 mm in thickness referring to the outline drawing at the back of this manual. (A mounting bracket for mounting the radar sensor on a sailboat mast is optionally available.) Fasten the platform to the mounting location. Next, posi- tion the base so the cable entrance faces the stern direction. Note: When drilling holes in the platform, be sure they are parallel with the fore and aft line. 3. Using the hex bolts*, flat washers and spring washers removed at step 1, fastgen the radome base to the platform. The torque should be between 19.6-24.5N�m. *If the thickness of the platfoirm is 6-10 mm, use M10x25 bolts (supplied). For thicker platform, use locally supplied bolts. Flat washer Spring washer Hex bolt (M10 x 20) Screws two screws on other side Bow Stern Cable entry Flat washer Antenna base assy. Spring washer Platform Hex bolt Apply silicone sealant. (M10 x 25 or M10 x 20) Transceiver module 5 mm or under: M10x20 6-10 mm: M10x25 over 10 mm: localy supplied bolts

5. Mount the cover tentatively. Wiring requires the removing the cover at Chapter 2. Remove and discard the packing material.

radar sensor. In order to minimize the chance of picking up electrical interference, avoid where possible routing the two-way cable near other onboard electrical equipment. Pass the cable through the hole in the radar sensor and apply sealing compound around the hole for waterproof- ing. 2.1 Wiring of DRS4A/6A 1. Open the radar sensor cover by loosening four bolts, and fix the stay. 2. Unfasten the cable gland assembly (plate and gasket). 3. Pass the two-way cable MOD-ASW0001 through the bottom. 4. Fasten the shield of the cable with the cable clamp in the radar sensor, and then connect the connector of power cable to the power terminal (white: +, black: -). Stay Cable gland Bolt

6. Push cables of the two-way cable into the slits of the gasket inside the radar sensor as below. 7. Push the gasket into the hole at the bottom of the radar sensor, then fasten four pan head screws to fix the plate to the sensor. 8. Release the stay and close the cover. Note: When closing the cover, set the gaskets to grooves in the bottom chassis, then tigten bolts. Power terminal LAN terminal BOTTOM CHASSIS GASKET GROOVE HEX BOLT Torque : 9.8 ±0.1 N m .

1. Unfasten three screws to remove the fixing plate for the gasket at the bottom of the radar sen- sor. 2. Remove the gasket, and then pass the two-way cable MOD-ASW0001 through the bottom. 3. Fasten the shield of the cable with the cable clamp in the radar sensor, and then connect the connector of power cable to the power terminal (white: +, black: -). 4. Attach the RJ-45 connector of the two-way cable to the LAN terminal in the radar sensor. 5. Push cables of the two-way cable into the slits of the gasket inside the radar sensor as below. Fixing plate (for gasket) Power terminal LAN terminal Fix the cable with this clamp. Fix the cable with this grommet.

tenna radiator does not hit these cables. Note 2: If the two-way cable meets to the platform near the radar sensor base, wind vinyl tape around cable at the bending location. 6. Confirm that the rubber gasket is properly positioned and that the triangle mark on the cover is aligned with the triangle mark on the mounting base, then tighten the fixing screws for the cover. Moisture hole

is carried out from the menu. 3.1 Selecting Radar Source 1. Open the Radar Installation menu. 2. Choose “Radar Source” to show the menu options window. 3. Choose “DRS4A” or DRS6A” as applicable. 4. Close the Radar Source options window. 3.2 Heading Alignment You have mounted the radar sensor facing straight ahead in the direction of the bow. Therefore, a small but conspicuous target dead ahead visually should appear on the heading line (zero de- grees). In practice, you will probably observe some small error on the display because of the difficulty in achieving accurate initial positioning of the radar sensor. The following adjustment wil compen- sate for this error. 1. Choose “Heading Alignment” from the menu. 2. Select a stationary target echo at a range between 0.125 and 0.25 nm, preferably near the heading line. 3. Place the cursor on the indication “EBL 1” or “EBL 2” at the bottom left corner, and then press the left-button key at the center of the cursorpad to show the EBL. 4. Rotate the RotoKey to bisect the target echo with the EBL. 5. Press the left-button 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 it is visually dead ahead. 3.3 Setting the Antenna Height 1. Select “ANTENNA HEIGHT” from the menu. 2. Select the height of the radar sensor above the water surface.