Furuno DRS4A Manuel utilisateur

Installation Manual

RADAR SENSOR

DRS4A/DRS6A/DRS2D/DRS4D

SAFETY INSTRUCTIONS ............................................................................ i

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

WARNING WARNING

Wear a safety belt and hard hat when

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/m2point

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/m2exist 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

SYSTEM CONFIGURATION

RADAR SENSOR

DRS4A/DRS6A

RECTIFIER

RU-1746B

100/110/220/230 VAC

12-24 VDC

NMEA 2000

(Under development)

: Standard Supply

: 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

iii

EQUIPMENT LISTS

Standard supply (for DRS4A/6A)

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

1. MOUNTING

1.1 Mounting Considerations

• The radar sensor is generally installed either on top of the wheelhouse or on the radar mast on

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

For DRS2D/4D

1.2 Mounting Procesure for DRS4A/6A

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

RADIATOR BRACKET

(top view)

Coat hatched area with

silicone sealant.

10mm

5. Coat the hex bolts (4 pcs.) with silicone sealant. Fasten the antenna radiator to the radiator

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

3. Insert four hex bolts (M12 x 60, supplied) and seal washers (φ30, supplied) from the top of the

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 washe

Flat washer

Spring washer

Nut

Antenna

unit

Mounting

platform

Silicone

sealant

Flat washer

Rubber mat

Seal washer

8. Coat ground terminal and ground point with silicone sealant as shown below.

Ground

wire

Hex. bolt

Flat washer

Spring washer

Flat washer

Hex. nut

Silicone

sealant

Hex. nut

Weld here.

Silicone

sealant

Ground

wire

antenna

unit

Flat washer

Spring washer

Ground

wire

GROUND

TERMINAL

GROUND

POINT

Hex. nut

Using inside fixing holes of the sensor housing

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

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