Installation Manual
MARINE RADAR MODEL 851 MARK-2
SAFETY INSTRUCTIONS...........................................................................................i
SYSTEM CONFIGURATION .....................................................................................iii
EQUIPMENT LISTS...................................................................................................iv
1. MOUNTING ........................................................................................................1-1
1.1 Mounting Methods for Antenna Unit........................................................................................1-1
1.2 Fixing Holes in Mounting Platform...........................................................................................1-2
1.3 Fastening the Radiator to the Radiator Bracket ......................................................................1-2
1.4 Mounting the Antenna Unit......................................................................................................1-3
1.5 Connecting the Signal Cable...................................................................................................1-7
1.6 Mounting Methods for Display Unit........................................................................................1-10
1.7 Mounting the Display Unit......................................................................................................1-11
2. WIRING...............................................................................................................2-1
2.1 Connections.............................................................................................................................2-1
2.2 Input/Output Data List..............................................................................................................2-3
2.3 Attaching OPTION Connector .................................................................................................2-4
2.4 Connection of two NMEA equipments.....................................................................................2-6
2.5 Installation Check List..............................................................................................................2-7
3. ADJUSTMENTS.................................................................................................3-1
3.1 Checking magnetron heater voltage........................................................................................3-1
3.2 Initial Adjustment of Picture .....................................................................................................3-2
3.3 Displaying the Installation Menus............................................................................................3-3
3.4 Entering Initial Settings............................................................................................................3-4
3.5 Heading Alignment.......................................................................................................................3-5
3.6 Sweep Timing..........................................................................................................................3-6
PACKING LIST ....................................................................................................... A-1
OUTLINE DRAWINGS............................................................................................ D-1
INTERCONNECTION DIAGRAM .......................................................................... S-1
SCHEMATIC DIAGRAMS........................................................................................S-2
A
(
C
9-52, Ashi hara-cho,
Nishinomiya, Japan
Telephone: 0798-65-2111
Telefax: 0798-65-4200
ll rig hts reserved.
Printed in Japan
Your Local Agent/Dealer
FIRST EDITION : JUL. 2000
D : SEP. 4, 2001
PUB. No. IME-34900-D
YOSH)
MODEL 851 MARK-2
SAFETY INSTRUCTIONS
WARNING
Radio Frequency Radiation Hazard
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 transmitting
antenna at a close distance.
Distances at which RF radiation levels of 100 and 10 W/m
below.
Note: If the antenna unit is installed at a close distance 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 representative or dealer to provide
this feature.
Type
MODEL 851
MARK-2
Radiator
type
XN10A
Distance to
100 W/m
point
0.2 m
2
exist are given in the table
2
Distance to
Worst case 3.0 m
10 W/m
point
2
i
WARNING
WARNING
Do not open the equipment
unless totally familiar with
electrical circuits and
service manual.
ELECTRICAL
SHOCK
HAZARD
Construct a suitable service platform
from which to install the antenna unit.
Serious injury or death can result if someone falls from the radar antenna mast.
Only qualified personnel
should work inside the
equipment.
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 antenna mast.
Be sure that the power supply is
compatible with the voltage rating of
the equipment.
Connection of an incorrect power supply
can cause fire or equipment damage. The
voltage rating of the equipment appears
on the label above the power connector.
Use only the specified power cable.
Fire or equipment damage can result if a
different cable is used.
CAUTION
Ground the equipment to
prevent electrical shock and
mutual interference.
Turn off the power at the mains switchboard 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.
Turn off the radar power
switch before servicing the
antenna unit. Post a warning sign near the switch
indicating it should not be
turned on while the antenna
unit is being serviced.
Prevent the potential risk of
someone begin struck by the
rotating antenna and exposure to RF radiation hazard.
Observe the following compass safe
distances to prevent deviation of a
magnetic compass:
Standard Steering
compass compas
Display
unit
Antenna
unit
Use the proper fuse.
Use of a wrong fuse can result in fire or
permanent equipment damage.
0.70 m 0.50 m
1.00 m 0.75 m
ii
SYSTEM CONFIGURATION
Antenna Unit
XN10A-RSB-0070-065
Navigation
IEC 61162* (In/Out)
device
Gyrocompass
*Equivalent to NMEA 0183
Option
Gyro Converter
AD-100
Intergrated Heading
Sensor PG-1000
Display Unit
RDP-117-5-M2
Ship's mains
12-24 VDC
Remote Display FMD-811
External Alarm
Buzzer OP03-169
Rectifier
RU-3423
Ship's mains
100/110/115/
200/220/230 VAC
1φ, 50/60Hz
iii
EQUIPMENT LISTS
Standard Supply
Name Type Code No. Qty Remarks
Antenna Unit XN10A-RSB-0070-065 － 1
Display Unit RDP-117-5-M2 － 1
CP03-21500 000-087-747
CP03-21510 000-087-748
Installation
Materials
Accessories FP03-05900 008-462-050 1 set
Spare Parts SP03-12100 000-086-964 1 set
CP03-21520 000-087-749
CP03-21530 000-087-750
CP03-21540 000-086-548
Select
one
Optional Supply
Name Type Code No. Qty Remarks
External Buzzer OP03-169 1
Rectifier RU-3423 － 1
FM-C6FPS001-050 000-142-031 1
For AD-100/NAV, 5 m w/6P
connector at one side
CP03-18401, power cable,
10 m signal cable
CP03-18401, power cable,
15 m signal cable
CP03-18401, power cable,
20 m signal cable
CP03-18401, power cable,
30 m signal cable
CP03-18401, power cable,
w/o signal cable
FM-C6FPS001-100 000-142-030 1
FM-C6FPD001-050 000-143-897 1
Cable Assy .
FM-C6FPD001-100 000-143-898 1
FM-C6FPD002-050 000-143-895 1
FM-C6FPD002-100 000-143-896 1
OP03-170-5 008-466-600 1
OP03-170-10 008-466-610 1
Cable set
OP03-171-5 008-466-620 1
OP03-171-10 008-466-630 1
Remote Display FMD-811 － 1 LCD type
For AD-100/NAV, 10 m w/6P
connector at one side
For PG-1000/NA V, 5 m w/6P
connector at both ends, Straight
For PG-1000/NA V, 10 m w/6P
connector at both ends, Straight
For NAV, 5 m w/6P connector at
both ends, Cross
For NAV, 10 m w/6P connector
at both ends, Cross
For E/S/ NAV, 5m w/6P connector
at one side, OP03-172
For E/S/ NAV, 10m w/6P connector
at one side, OP03-172
For E/S/ NAV, 5m w/6P connector
at both ends, OP03-172
For E/S/ NAV, 10m w/6P connector
at both ends, OP03-172
iv
1. MOUNTING
1.1 Mounting Methods for Antenna Unit
•
The antenna unit is generally installed either on top of the wheelhouse or on
the radar mast on a suitable platf orm. Locate the antenna unit where there is a
good all-round view. Any obstruction will cause shadow and blind sectors.
A mast for instance, with a diameter considerably less than t he width of the
radiator, will cause only a small blind sector, but a horizontal spreader or
crosstrees in the same horizontal plane as the antenna unit would be a much
more serious obstruction; you would need to place the antenna unit well above
or below it.
•
It is rarely possible to place the antenna unit 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 fitt ing.
•
If you have a radio direction finder on your boat, locate its antenna clear of the
antenna unit to prevent interference to the direction finder. A separation of
more than two meters is recommended.
•
To lessen the chance of picking up electrical interference, avoid where possible
routing the signal cable near other onboard el ectrical equipment. Also avoid
running the cable in parallel with power cables.
•
A magnetic compass will be affected if placed too close to the antenna unit.
Observe the following compass safe distances to prevent deviation of a
magnetic compass: Standard compass, 1.00 m , Steering compass, 0.75 m.
•
Do not paint the radiator aperture, to ensure proper emission of the radar
waves.
•
When this radar is to be installed on larger vessels, consider the following
points:
!
The signal cable run between the antenna and the display comes in lengths
of 10 m (standard), 15 m, 20 m and 30 m. Whatever length is used it must
be unbroken; namely, no splicing allowed.
!
Deposits and fumes from a funnel or other exhaust vent can adversely
affect the aerial performance and hot gases may distort the radiator portion.
The antenna unit must not be mounted where the temperature is more than
70°C.
1-1
1. MOUNTING
As show n in the figure below, the antenna unit may be installed on the bridge, on
a common mast or on the radar mast.
(a) On bridge
(c) Radar mast
Figure 1-1 Antenna unit mounting methods
(b) Common mast
1.2 Fixing Holes in Mounting Platform
Referring t o t he outline drawi ng on page D-1, drill five holes in the mounting
platform: four holes of 15 mm di am eter for fixing the antenn a unit and one hole
of 25-30 mm diameter for the signal cabl e.
1.3 Fastening the Radiator to the Radiator Bracket
There are installation mat er ials for the Radiator not shown in the packing l ist.
These are as s hown below.
Name Qty Remarks
O-ring 1 NBR
Hex. head bol t 4 M8 x 30
Flat washer 4 M8
1-2
Spring washer 4 M8
Silicone s ealant 1 #1211, 50g
1. Remove the radiator cap from the radiator bracket.
2. Coat contacting surface between antenna radi ator and radiator bracket with
silicone s ealant as shown in Figure 1- 2.
Coat hatched area with
silicone sealant.
Figure 1-2 Coating the bottom of antenna radiator for
XN10A with silicone sealant
Groove
Radiator
1. MOUNTING
3. Coat t hr eaded holes on the antenna radiator with si licone sealant.
4. Greas e the O-ring and set it t o the radiator bracket.
5. Lay the antenna radiator on the r adiator bracket.
6. Coat t he r adiator fixing bolts (4 pcs.) with silicone sealant. Fasten the
antenna radi ator to the radiator brac ket with the radiator fixing bolts, flat
washers and s pring washers.
Antenna
radiator
Coat threaded
holes with silicone
O-ring
Radiator bracket
Flat washer
Spring washer
Hex head bolt
(M8 x 30)
sealant.
Coat bolts with
silicone sealant.
Figure 1-3 F astening the radiator brac k et to the antenna unit chass is
1.4 Mounting the Antenna Unit
The antenna unit can be mounted using the fixing holes on the out s ide (200 x
200 mm) or inside (140 x 150 mm) t he antenna unit.
Outside fixing holes
Use the hex head bolt (supplied) to m ount the antenna unit as below.
1. Lay the corrosion-proof rubber mat (supplied) o n the mounting platf or m.
Bow mark
Figure 1-4 Location of rubber mat
Ground
terminal
Rubber
mat
1-3
1. MOUNTING
2. Lay the antenna unit on the mount ing platform, orienting it as shown in Figure
1-5.
BOW
STERN
Figure 1-5 Antenna unit
CAUTION
Do not lift the antenna unit by the
radiator; lift it by the housing.
The radiator may be damaged.
3. Insert four hex bolt s and seal washer s f r om the top of the antenna housing.
Insert the seal washers with the lar ger diameter next to the bolt heads . B e
sure the seal washer, not other washers, is next t o bolt head.
Hex bolt
Seal washer
Flat washer
Spring washer
Nut
Figure 1-6 F ixing the antenna unit c hass is
1-4
1. MOUNTING
4. Pass flat washers, spring washers and nuts onto hex bolts . Fasten by
tightening nuts. Do not fasten by tightening the hex bolts; seal washers may
be damaged.
Seal washer
Antenna
Rubber mat
Flat washer
unit
Mounting
platform
Silicone
sealant
Figure 1-7 How to fasten antenna unit to mounting platform
5. Coat f lat washers, spring washers, nuts and expos ed parts of bolts wit h
silicone s ealant.
6. Prepare ground point i n m ounting platform (within 300 mm of ground terminal
on antenna unit) using M6 x 25 bolt, nut and flat washer.
7. Run the ground wire (R W-4747, 340 mm) between the ground terminal and
ground point .
8. Coat ground terminal and ground point with silicone sealant as s hown in
Figure 1-8.
Hex bolt
Flat washer
Ground
terminal
Silicone
sealant
Ground
wire
GROUND
TERMINAL
OR
Weld here.
Flat washer
Spring washer
Hex nut
GROUND
POINT
Hex nut
Spring washer
Flat washer
Hex nut
Silicone
sealant
Ground
wire
Antenna
unit
Figure 1-8 How to coat ground point an d gr ound terminal with s ilicone sealant
1-5
1. MOUNTING
Fixing hol es inside an te nn a un it
This met hod requires removal of the RF unit in the antenna unit to access inside
fixing hol es . Us e hex head bolts, fl at washers, spring washers and nuts (local
supply) to mount the antenna unit, c onf irming length of bolts.
1. Loose four hex. bolts t o open the antenna unit. Refer t o Figure 1-10 for
location.
Hex head bolt
M8X25
2pcs.
Hex head bolt
M10X20 4pcs.
Spring Washer
M10 4 pcs.
Upper chassis
RFunit
Cover
Square bushing
Lower chassis
Pan head screw
M3X8 4pcs.
Figure 1-9 Antenna unit chass is, upper chassis separated
2. Unpl ug connector connected between upper and lower chassis.
3. Separate upper chassis from lower chassis by removing two hex head bolts.
4. Remove cover by unfastening four pan head screws.
5. Remove connector from RF uni t.
6. Remove RF unit by unfast ening four hex head bolts.
7. Lay the corrosion-proof rubber mat (supplied) o n the mounting platf or m.
8. Fasten the lower chassis to the mounting platform with hex head bolts, spri ng
washers , flat w as her s and nuts (local supply), and then coat flat w as her s ,
nuts and exposed parts of bolts with silicone sealant. Cut a slit in rubber
bushing and insert bolt into bushing. Do not use seal washer s .
9. Reassemble RF unit, cover a nd upper chassis.
10. Set four caps (supplied) into outside fixing holes .
11. Do steps 6-8 in “Outside fixing holes ” .
1-6
1.5 Connecting the Signal Cable
Only one signal cable runs from the display unit to t he antenna unit. In order to
minimize the chance of picking up electrical interference, avoid where possible
routing the signal cable near other onboard electrical equipment. Also, avoid
running the cable in parallel with power cables. Pass the cable through the hole
and apply sealing compound around the hole for waterproofing.
1. Open the ant enna cover by loosening four hex. bolts, and then fix the stay.
1. MOUNTING
Stay
Cable gland
Hex. bolt
Figure 1-10 Antenna unit chassis, cover opened
2. Unfast en the cable gland assembly (plate, gasket, flat washer).
3. Pass the signal cable w/connector through the bottom of the antenna unit
chassis. Pass the cable through the gland assembly as shown below.
Bolt
4-M4X16
Plate
Gasket
Crimp-on lug
Flat
washer
Figure 1-11 Passing the signal cable through the cable gland assembly
4. Fasten t he crimp-on lug on the shield to one of the fixing bolts of the cable
gland assembly.
1-7
1. MOUNTING
5. Position the signal cable so that no more than 4 cm of the sheath is exposed
as shown in the figure below. Tighten fixing bolts.
Tubing
Shield
Sheath
Within 4 cm
Plate
Flat
washer
CABLE GLAND
Figure 1-12 How to fix signal cable in cable gland
6. Unfast en four screws shown in the figure below.
Four screws
Bolt
Gasket
Figure 1-13 Antenna unit chassis, cover opened
7. Pass the signal cable t hrough the cable protector.
Cable
protector
Figure 1-14 Antenna unit chassis, cover opened
8. Connect the signa l cable to the RTB Board (03P9249), referring to the
interconnection diagram and the f igure below.
1-8
1. MOUNTING
9. Attach three EMI cores t o t he signal cable as shown below.
J821 VH9P
J822 VH2P
Lead in
cable here.
EMI core
RFC-13
Clamp
Route cable along here.
J824 NH13P
J823 VH4P
Figure 1-15 Antenna unit chassis, cover opened
10.Fix the signal cable with the cable clamp.
11.Release the stay and close the cover. Loosely fasten the cover fixing screws;
you will have to make some adjustments inside after completion of wiring.
Note:
When closing the cover, set the gaskets to grooves in the bottom chassis,
then tighten bolts.
BOTTOM
CHASSIS
GROOVE
GASKET
SCANNER BOLT
Torque :9.8 ± 0.1 N • m
Figure 1-16
1-9
1. MOUNTING
1.6 Mounting Methods for Display Unit
When selecting a mounting location for the display unit keep in mind the following
points.
•
The display unit is designed and constructed t o be splashproof, thus it can be
installed outdoors. You can even hose it down after a day’s outing. If it is to be
installed outdoors, we recommend installing it an enclosed cabinet, for
maximum protection against the marine environment.
•
The temperature and humidity of the mounting location should be stable and
moderate. No LCD can provide adequate contrast if the ambient temperature is
too extreme.
•
The display unit consumes only a moderat e amount of power, so there is no
need for forced air ventilation. However, you should provide adequate space
behind and around the unit to permit circulation of air and to provide convenient
access to the rear connectors.
•
Even though the picture is quite legible even in bright sunlight, keep the display
unit out of direct sunlight or at least shaded because of heat that can build up
inside the cabinet.
•
Locate the display unit in a position where you can vi ew and operate it
conveniently but where there is no danger of salt or fresh water spray or
immersion.
•
The orientation of the display unit should be so the radar screen is viewed
while the operator is facing in the direction of the bow. This makes
determination of your position much easier.
•
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 mounting knobs. Make sure you leave at least a foot or so of “service loop”
of cables behind the unit so it can be pulled forward for servicing or easy
removal of the connectors.
•
A magnetic compass will be affected if placed too close to the display u nit .
Observe the minimum compass safe distances to prevent deviatio n of a
magnetic compass: standard compass, 0.7 m eters, and steering compass, 0.5
meters.
1-10
1.7 Mounting the Display Unit
The display unit is designed to be mounted on a tabletop.
1. Using the hanger as a t emplate, mark screw locations in the mounting
location.
2. Fix the hanger to the mounting location with four 5 x 20 tapping screws
(supplied).
3. Fit t he knob bolts to the display unit.
4. Install t he display unit in the hanger.
5. Tighten the knob bolts securely.
1. MOUNTING
222(8.7")
**
∅6
4 FIXING HOLES
268
(10.55")
*80
(3.15")
15
(0.59")
238
(9.37")
: SERVICING CLEARANCE
*
**: If the mounting location is
subject to heavy vibration,
fasten the display unit in the
hanger perpendicularly so that
it contacts the rubber cushions.
**
15
(0.59")
(0.79")
*80
(3.15")
Cutout dimensions for flushmount
130
(5.12")
*140
(5.51")
10
100
(3.94")
20
(0.39")
236(9.3")
Figure 1-17 How to mount the display unit
1-11
2. WIRING
2.1 Connections
Connect the signal and power cables, the ground wire and optional equipment as
shown in Figure 2-1.
Signal cable
S03-83
Power cable connector
Connect power
cable here.
CAUTION
For 24 volt power,
replace fuse with 5A
fuse (supplied), and
attach "5A fuse label"
to the fuse cover on
power cable.
Factory setting is 10A
for 12 VDC set.
Signal cable connector
Connect signal cable
from antenna here.
CAUTION
Tighten the boot-band
securely to ensure
watertightness.
10.2-31.2VDC
1
3 GND
2
DJ-1
TYPE
SER.NO.
DATE
COMPASS SAFE DISTANCE
STD M STEER M
EQUPMENT CLASS
FURUNO ELECTRIC CO., LTD
OPTION
MARINE RADAR
Ground terminal
Connect ground wire between
here and ship's ground.
OPTION
HDG
NMEA
OPTION connector
Connect remote
display here.
HDG connector
Connect heading
sensor here.
NMEA connector
Connect navaid
here.
OPTION connector
Connect navaid,
echo sounder or
external buzzer here.
*1
*2
*3
See next page.
Figure 2-1 Display unit, rear view
*1:The following cables are supplied with remote display.
Type Code no.
Remarks
FM-C10FPD002-050 000-143-894 5m
FM-C10FPD002-100 000-143-893 10m
FM-C10FPD002-150 000-143-892 15m
2-1
2. WIRING
FM-C10FPD002-200 000-143-891 20m
FM-C10FPD002-300 000-143-890 30m
*2:The following cables are optionally supplied for heading sensor connection.
Type Code no.
FM-C6FPD001-050 000-143-897 PG-1000 (5m)
FM-C6FPD001-100 000-143-898 PG-1000 (10m)
*3:The following cables can be used for NMEA 0183 format connection.
Type Code no.
FM-C6FPD002-050 000-143-895 6P-6P(5m), Cross type
FM-C6FPD002-100 000-143-896 6P-6P(10m) , Cross type
Signal cable connection
1. Connect the signal cable to DJ-1 on the rear panel of the display unit.
Remarks
Remarks
Rubber cover
DJ Connector
DJ-1
Boot-band
Cable
Display unit
Figure 2-2
2. Cover the connector with the rubber cover. The projection on the connector
base is inserted into the groove on the rubber cover.
Rubber cover
Grasp
Grasp
2-2
Groove
Display unit
Figure 2-3
3. Put the boot -band as shown below, and tighten it.
Boot-band
Display Unit
Figure 2-4
2.2 Input/Output Data List
This radar can receive the following NMEA 0183 format data sentences from a
navigator or echosounder. Your vessel’s position in latitude and longitude, the
range and bearing to waypoint, speed, course, and dept h may be seen on the
display.
Input
GLL: Geographic position – Lat/Long
BWR: Bearing and Distance to Waypoint – Rhumb line
BWC: Bearing and Distance to Waypoint – Great circle
GLC: Geographic position – Loran-C
GTD: Geographic position – Time Difference
RMA: Recommended Minimum Specific Loran-C Data
RMB: Recommended Minimum Navigation Information
RMC: Recommended Minimum Specific GPS/Transit Data
VTG: Track Made Good and Ground Speed
MTW: Water Temperature
DBT: Depth Below Transducer (Ver 1.5)
DBS: Depth Below Surface
DPT: Depth (Ver 2.0)
GGA: GPS – Rx status, L/L
VBW: Dual grou nd/water speed
DBK: Depth
HDM: Heading Magnet
HDG: Heading Deviation and Variation
HDT: Heading True
2. WIRING
Output
TLL: Target Position
RSD: Radar System Data
2-3
2. WIRING
2.3 Attaching OPTION Connector
You can connect external buzzer or NMEA equipment (Echosounder and/or
Video plotter) by attaching the optional connector kit.
This radar can output NAV data received from a navaid to a video plotter.
For how to distribute NAV data, refer to “2.4 Connection of two equipments”.
TLL, RSD
MODEL 851
MARK-2
NMEA
OPTION
J61
Navaid
Video plotter
Figure 2-5
1. Remove the plastic cover of OPTION from rear cover.
2. Disconnect all connectors from rear panel.
3. Dismount the display unit from hanger.
4. Unfasten eight screws and three nuts fixing the waterproof connector to
remove the rear covers.
Waterproof Connector assy.
J61
Multipin
connector
NMEA
J59
EXT BUZZ
2-4
Figure 2-6 Display unit rear view
5. Connect connector assy. to J61(NMEA)/J59(EXT BUZZ) on SPU Board
(SPU-9180).
To distribute NAV data, modify waterproof connector assy. as shown figure
2-7.
XH3P
XH5P
1
2
3
1
2
3
4
5
BRN
RED
ORG
Waterproof Connector assy.
YEL
XH5P
1
2
3
4
5
2. WIRING
BRN
ORG
YEL
RED
1. Remove #1 and #3 contacts
from the XH3P.
2. Discard XH3P connector.
Figure 2-7
6. Pass waterproof connector through the hole named OPTION on rear cover.
7. Reassemble the display unit.
3. Insert brown and red
wires (contacts) into the
XH5P as shown above.
4. Connect XH5P connector
to J61 on SPU Board.
CAUTION
When reassembling the display unit, be sure the
rear cover is fitted to the front chassis properly
when closing the rear cover. Press the center of
the rear cover to plug in the multipin connector
on the rear cover.
8. Tighten the nut of the connector (Torque: 7.6±0.02N⋅m).
9. Mount the display unit in the hanger.
10. Connect all connectors on rear panel.
2.4 Connection of two NMEA equipments
You can connect a video plotter and echosounder to the 6P OPTION connector.
1. Wire OP03-170-5/OP03-170-10 as shown in Figure 2-8.
2. Pass steel mesh through the cable.
3. Solder cable.
2-5
2. WIRING
SHIELD
MODEL 851
MARK-2
OPTION connector
4. Cover shield with steel mesh by cable ties.
TD-H
TD-C
RD-H
RD-C
Shield
Other Equipment
(Echosounder data not output.)
Solder
1
2
RD_H
RD_C
3
4
5
6
10mm
10mm
10mm
10mm
SHIELD
Echosounder
TD_H
TD_C
SHIELD
FM-C6FPS001
Figure 2-8
Steel mesh
MODEL851 MARK2
OPTION connector
5. Wrap with self-vulcanizing tape.
2.5 Installation Check List
After completing the installation it is a good idea to check for proper installation.
Follow the checklist below and tick boxes to show proper completion.
Is the signal cable secured against a mast or bulkhead?
!
Shield
After tieing, wrap with
self-vulcanizing tape.
Figure 2-9
Cable tie
Other Equipment
Echosounder
2-6
Is the cable gland or cable entry on the deck fully waterproofed?
!
Are the connections to the battery correct polarity?
!
Are all the antenna and display units grounded?
!
Are all connectors at the rear of the display unit fastened securely?
!
3. ADJUSTMENT
3.1 Checking magnetron heater voltage
Magnetron heater voltage is form ed on the MD Board (03P9235) of the antenna
unit, and is preadjusted at the factory f or use with any lengt h of signal cable.
Therefore no adjustment is required. However, check magnetron heater voltage
as follows:
1. Turn on the radar and leave it in stand-by.
2. Open the ant enna cover.
3. Unfasten four screws to remove the RF section cover.
DANGER
ELECTRICAL SHOCK HAZARD
This check is done with the
power on DO NOT touch
the magnetron.
Magnetron
Four screws
Figure 3-1 Antenna unit, cover opened
4. Connect a m ultimeter, set to 10 VDC range, between test point J825#4 and
J825#6 (GND) on the RTB Board (03P9249).
Measure voltage
at this connector
(J825).
Figure 3-2 Antenna unit, cover opened
0.1 V.
5. Confirm the meter reads 7.6 V
6. Close the antenna cover and tighten the cover fixing screws.
±
3-1
3. ADJUSTMENT
3.2 Initial Adjustment of Picture
Follow the procedure below to obtain proper radar picture.
1. Press the [POWER] key on the display unit. The display should light. Wait
until the message "ST-BY" appears on the screen. (About one and half
minutes.)
2. Press [ST-BY/T X] key to t ransmit. The radar will start transmitting, and you
will probably see some targets around you, even though the radar is not yet
properly adjusted.
3. Select a long range.
4. Press the [ECHO ] key. The following display appears.
AUTO 1 2 3
[
GAIN
STC
MAN
◆
◆
AUTO 1 2 3
[
MAN
Select auto (or manual) by
pressing omnipad followed
by [ENT] key.
Item selected
for adjustment
Select auto (or manual) by
A.C RAIN 00
2
FTC 0
Select item/option
by pressing
appropriate
omnipad arrow.
Figure 3-3 Display for adjustment of gain, STC, A/ C RAIN and FTC
5. Press the omnipad to select GAIN-AUTO, if it is not already selected.
6. Select m inimum range. Press the [ECHO] key and press the omnipad to
select STC-AUTO, if it is not already selected.
1
ECHO KEY
TO EXIT
1
pressing omnipad followed
by [ENT] key.
Current
level
3-2
3.3 Displaying the Installation Menus
Two sets of installation menus, Installation Setup 1 and Installation Setup 2
enable entry of initial settings and adj ustment of the radar.
Procedure
1. Turn on the power while pressing and holding down th e [HM OFF] key.
2. Press the [MENU] key.
● MAIN MENU ●
Select item by ▲▼ keys
and press ENT key.
1. Backlight/Brilliance
2. P/L, IR, NR & Radar Mode
3. Nav Data
4. Mode & Function
5. Tuning AUTO MANUAL
6. Self Check
7. Installation Setup 1
3. ADJUSTMENT
. . . . . . . . . . . . . . . . .
Press HM-OFF to temporarily
hide menu.
<Press MENU key to escape.>
Figure 3-4 main menu
3. Press the omnipad to select Installation Setup 1 and press the [ENT] key.
● INSTALLATION SETUP 1 ●
Select item and option
by ▲▼ keys.
1. Key Beep
2. Hdg Sensor
3. Ant on Tx
4. Demo Display
5. Rotation Speed
6. Installation Setup 2
OFF ON
MAG GYRO
ROTATE STOP
OFF
ON
24 48 rpm
. . . . . . . . . . . . . . . . .
Press HM-OFF to temporarily
hide menu.
<Press MENU for main menu.>
Figure 3-5 Installation setup menu 1
4. To display the Installation Setup 2 menu, press the omnipad to select
Installation Setup 2 and press the [ENT] key.
3-3
3. ADJUSTMENT
● INSTALLATION SETUP 2 ●
Select item and option
by trackball.
1. Align Heading
2. Adjust Sweep Timing
3. On Hours 0000019.8 H
4. Tx Hours 0000016.0 H
. . . . . . . . . . . . . . . . .
Press HM-OFF to temporarily
hide menu.
<Press MENU for main menu.>
Figure 3-6 Installation setup 2 menu
3.4 Entering Initial Settings
1. At the Installation Setup 1 menu, press the omnipad to select Key Beep. (Key
Beep turns on or off the buzzer which sounds when a key is pressed.)
2. Press the omnipad to select OFF or ON.
3. Select Hdg Sensor.
4. Select type of heading sensor connected to the radar; MAGnetic compass or
GYROcompass.
5. Press the [ENT] key.
Leave the menu open to complete the next several adjustments.
3-4
3.5 Heading Alignment
You have mount ed the antenna unit facing straight ahead in the direction of the
bow. Therefore, a small but conspicuous target dead ahead visually should
appear on the heading mark (zero degrees).
In practice, you will probably observe some small error on the display because of
the difficulty in achieving accurate initial posit ioning of the antenna unit. The
following adjustment will compensate for this error, 360 degrees.
1. Identify a suitable target (for example, ship or buoy) at a range between 1/8 to
1/4 miles, preferably near the heading mark. To minimize error, keep echoes
in the outer half of the picture by changing t he range.
2. Display the Inst allation Setup 2 menu.
● INSTALLATION SETUP 2 ●
Select item and option
by trackball.
1. Align Heading
2. Adjust Sweep Timing
3. On Hours 0000019.8 H
4. Tx Hours 0000016.0 H
3. ADJUSTMENT
. . . . . . . . . . . . . . . . .
Press HM-OFF to temporarily
hide menu.
<Press MENU for main menu.>
Figure 3-7 Installation setup 2 menu
3. Select Align Heading by pressing omnipad and press the [ENT] key.
4. Press the omnipad to bisect the target selected 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 it is visually dead ahead.
3-5
3. ADJUSTMENT
3.6 Sweep Timing
This adjustment ensures proper radar performance, especially on short ranges.
The radar measures the time required for a transm itt ed echo to travel to the
target and return to the source. The received echo appears on the display based
on this time. Thus, at the instant t he transmitter is fired, the sweep should start
from the center of the display (sometimes called sweep origin.)
A trigger pulse generated in the display unit goes t o the antenna unit through the
signal cable to trigger the transmitter (magnetron). The time taken by the signal to
travel up to the antenna unit varies, depending largely on the length of signal
cable. During this period the display unit should wait before starting the sweep.
When the display unit is not adjusted correctly, the echoes from a straight local
object (for example, a harbor wall or straight pier) will not appear with straight
edges
center. The range of objects will also be incorrectly shown.
namely, they will be seen as “pushed out” or “pulled in” near the picture
(1) Correct
Figure 3-8 Examples of improper and correct sweep timings
1. Display the Inst allation Setup 2 menu and select Adjust Sweep Timing by
pressing omnipad.
2. Transmit the radar on the shortest range.
3. Visually select a straight echo (harbor wall, straight pier).
4. While looking at the target selected above, press omnipad at the 9 o’clock or 3
o’clock position to straighten the target.
5. Press the [ENT] key.
6. After adj ustment press the [MENU] key and turn off the power to close the
installation menu.
(2) Target pushed
inward
(3) Target pushed
outward
3-6
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