Instruction Manual

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RA51/52/53/54/55 INSTRUCTION MANUAL – 05 9

CHAPTER 3. INSTALLATION

This chapter shows how to install the RA51/52/53/54/55 radar on your boat and the precau-

tions you'll need to observe.

3.1 Checking Inventory ___________________________________

Carefully unpack the box and check to see that all components are present.

RA51 RA52 RA53 RA54 R55

Item Q'TY Q'TY Q'TY Q'TY Q'TY

Display unit 1 (RF720A) 1 (RF720A) 1 (RF720A) 1 (RF720A) 1 (RF720B)

Scanner unit 1 (RB715A) 1 (RB716A) 1 (RB717A) 1 (RB718A) 1 (RF719A)

Display cover 1 1 1 1 1

Fuse 2 2 2 2 2

Interconnecting cable 1 (10 m) 1 (10 m) 1 (10 m) 1 (10 m) 1 (15 m)

Power supply cable 1 (2 m) 1 (2 m) 1 (2 m) 1 (2 m) 1 (2 m)

M10 hexagonal bolt 4 sets 0 0 0 0

M12 hexagonal bolt 0 4 sets 4 sets 4 sets 4 sets

Motor brush 0 2 2 2 2

Your unit was shipped with a 10m(or 15m) interconnecting cable. Longer or shorter cable is

also available as an option, as listed in Tab.3-1.

Checking contents of your package

Checking power supply voltage

Determining place of installation

Installing scanner unit

Installing display unit

Connecting cables

Adjustment

Connecting external equipment

When discarding Your radar

Summary of content (14 pages)

PAGE 1
CHAPTER 3. INSTALLATION This chapter shows how to install the RA51/52/53/54/55 radar on your boat and the precautions you'll need to observe. Checking contents of your package Checking power supply voltage Determining place of installation Installing scanner unit Installing display unit Connecting cables Adjustment Connecting external equipment When discarding Your radar 3.
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Cable length 10m(If you need) 15m 20m 30m Tab.3-1 Optional Interconnecting Cable RA51 RA52/53/54 Product No. Product No. 242J158055B 242J158055C 242J158055D 242J159098B 242J159098C 242J159098D RA55 Product No. 242J158055A 242J159098C 242J159098D You'll need to supply the following hardware: Item Tapping screw or M5 bolt and nut Grounding wire Grounding wire and crimp terminal QTY 6 sets 1 1 set Remarks To install display unit Earth line for display unit Earth line for scanner unit 3.
PAGE 3
.3 Where to Install the Scanner _____________________________ 3.3.1 Scanner unit Radar's target detection capacity varies greatly depending on the position of the scanner. An ideal position is a location high above the ship's keel line where there is no obstacle all around the scanner. In an actual ship, such an ideal location is limited by various factors. To comply with FCC RF exposure requirements, the radar antenna for this scanner must be installed to provide a separation distance of 1.
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3.3.3 Shifting away from obstacles • Shifting from keel line By shifting the scanner position from the keel line to the starboard side of the boat, it is possible to move shadow zones to the port side. This makes it possible to keep a clear view to the bow. The distance to be shifted can calculated using the following equation: Ls=0.4R+D/2 [m] (when R<15m) Ls=0.
PAGE 5
3.4 Installing Scanner Unit _________________________________ Use a mounting base such as the ones shown in Fig. 3.3, or you can install the scanner directly to a roof or other flat surface. Be certain you keep the water drain tube clear. It's located at the bottom of the scanner unit. Note : If the mounting bracket or surface has a curvature of more than 2mm, use spacers with the mounting bolts to prevent stress on the scanner housing. Do not use an edge that might trap water. Fig.
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Logo seal on side wall Chassis Radome(bottom) Mount base Ship's heading Washer Spring washer Cable inlet Included M10 Hexagonal bolt Fix four screws RA51 Radome scanner Ship's heading This place was cut. Note: See Fig.3-11 Double nuts Spring washer Washer Scanner base Mount base M12 Hexagonal bolt Fix four screws RA52/53/54/55 Open scanner Fig.3-5 Mounting the Scanner Tab.3-6 Bolts for Mounting Scanner Unit (Radome scanner) Thickness of mount base 1-4mm(0.04-0.16 in.) 4-9mm(0.16-0.35 in.
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3.5 Installing Antenna Unit _________________________________ Remove the protective cap covering the rotary coupler on the top of the scanner. Match the antenna radiation direction to direction of the arrow markings on the rotation base and secure the antenna in position using four M8 bolts. Antenna radiation surface Arrow 3.6 Installing Display Unit__________________________________ Choose the proper bolt length according to the thickness of the surface on which you are going to install the display.
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3.7 Connecting Cables _____________________________________ Keep the following tips in mind when laying cables: - Do not tie the cables for the radar together with cables of other equipment, especially the power supply cable. If you need to pass the cable through a wire chase or conduit, tape the scanner side connector to the wire so it doesn't pull off or get hung up. Secure cables in place at intervals of about 40 cm (16"). 3.7.1 Interconnecting cable (RA51 Radome scanner) (See Fig.
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Antenna Stern side Shield cover Cable shield Fixing plate Rubber ring Radome (bottom) Fix connector on PCB(X11, X12) Interconnecting cable Inner shield PCB X11 (Connect here) X12 (Connect here) Radome (bottom) Fig.
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3.7.2 Interconnecting cable (RA52/53/54/55 Open scanner) (See Fig.3-9) 1) Be sure that the power is off. Connect the cable to the plug labeled "SCANNER" on the rear panel of the display unit. Be sure to secure the rubber boot around the cable connector rim. 2) Use a socket wrench to remove the back cover of scanner unit. 3) Remove the two bolts securing the transceiver. 4) Remove the connectors to the motor (X1:RA52, J5:RA53/54/55) and to the heading switch (X2:RA52, J3:RA53/54/55).
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Fig.3-9 Fitting interconnecting cable 3.7.3 Grounding wire ! WARNING Connect all grounding wires before connecting the power supply cable to prevent a shock hazard from leakage current. Connect a wire from the grounding terminal on the rear panel of the display unit to your boat's bonding system or electrical ground bus. Fig.3-10 Grounding display unit to earth Connect a grounding wire from one of the bolts on the scanner base as shown in Fig.3-11.
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3.7.4 Power supply cable Power should be fed through a switch and protective fuses (or circuit breakers), as shown below. WARNING: Do not apply over 41.6V to the unit or it may be damaged. Generator Switchboard Charger Main switch panel (Knife Switch with Fuses) Storage Battery 12/24V Radar Display Unit DC voltage reference points Plug the power supply cable into the connector labeled "POWER" on the rear panel of the display unit.
PAGE 13
3.9 Connecting External Equipment to Display Unit ____________ The display unit has connections for two NMEA interface ports. One is made through the power cable. The other is accessed through the OPTION connector on the display's rear panel. A separate cable and optional junction box are needed to use this interface. (Refer to CHAPTER 8 (4) External interface.) Note: SIN/COS and MOB/TARGET signals cannot be accessed through the junction box interface.
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Connection A (Very Good) Connection B (Good) RADAR SHIP'S SUPPLY RADIO EQUIPMENT SHIP'S SUPPLY RADAR SHIP'S SUPPLY RADIO EQUIPMENT Connection C (Bad) SHIP'S SUPPLY RADAR RADIO EQUIPMENT (3) Grounding Both the display unit and the scanner should be securely grounded to the closest point of the boat's bonding system or electrical ground bus using braided copper wire or copper strap. 3.11 When Discarding Your Radar ____________________________ Tab.