background image

 1-1

1. MOUNTING

1.1 Mounting Methods for
      Scanner Unit

• The scanner unit is generally installed ei-

ther on top of the wheelhouse or on the
radar mast on a suitable platform. Locate
the scanner unit where there is a good all-
round view. Any obstruction will cause
shadow and blind sectors. A mast for in-
stance, with a diameter considerably less
than the width of the radiator, will cause
only a small blind sector, but a horizontal
spreader or crosstrees in the same hori-
zontal plane as the scanner unit would be
a much more serious obstruction; you
would need to place the scanner unit well
above or below it.

• It is rarely possible to place the scanner

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 in-
fluence on the radar at the first opportu-
nity after fitting.

• If you have a radio direction finder on your

boat, locate its antenna clear of the scan-
ner unit to prevent interference to the di-
rection finder. A separation of more than
two meters is recommended.

• To lessen the chance of picking up elec-

trical interference, avoid where possible
routing the signal cable near other onboard
electrical equipment. Also avoid running
the cable in parallel with power cables.

• A magnetic compass will be affected if

placed too close to the scanner unit. Ob-
serve the following compass safe dis-
tances to prevent deviation of a magnetic
compass: Standard compass, 1.00 m,
Steering compass, 0.75 m.

• Do not paint the radiator aperture, to en-

sure 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 scan-

ner 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
scanner unit must not be mounted
where the temperature is more than
70

°

C.

As shown in the figure below, the scanner
unit may be installed on the bridge, on a com-
mon mast or on the radar mast.

(a) On bridgh

(b) Common mast

(c) Radar mast

Figure 1-1 Scanner unit mounting methods

1.2 Fixing Holes in Mounting
      Platform

Referring to the outline drawing on page D-
1, drill five holes in the mounting platform:
four holes of 15 mm diameter for fixing the
scanner unit and one hole of 25-30 mm di-
ameter for the signal cable.

Содержание 1761 MARK-3

Страница 1: ......

Страница 2: ...h o n e 0 7 9 8 6 5 2 1 1 1 Te l e f a x 0 7 9 8 6 5 4 2 0 0 Yo u r L o c a l A g e n t D e a l e r A l l r i g h t s r e s e r v e d P U B N o I M E 3 4 8 1 0 C M O D E L 1 7 6 1 M A R K 3 Y O S H F...

Страница 3: ...itting scanner 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 scanner unit is installed at a close distance in front of th...

Страница 4: ...RNING Construct a suitable service platform from which to install the scanner unit Serious injury or death can result if some one falls from the radar scanner mast Turn off the power at the mains swit...

Страница 5: ...NECTIONS 2 1 Connecting the Signal Cable 2 1 2 2 Display Unit Connections 2 2 2 3 Connection of External Equipment 2 3 2 4 Fuse Exchange for 24 32 VDC Power cable 2 4 2 5 Checking the Installation 2 4...

Страница 6: ...RDP 099 Navigation device IEC 61162 In Out Gyro compass Gyro Converter AD 100 12 24 32 VDC Rectifier RU 3423 115 230 VAC External Alarm Buzzer OP03 21 Scanner Unit XN10A RSB 0070 065 Display Unit 12 V...

Страница 7: ...l b a c s e i r o s s e c c A 0 0 0 6 0 3 0 P F 2 5 1 5 8 0 0 0 0 t e s 1 2 0 6 4 0 3 0 P F 1 0 6 4 0 3 0 P F 0 1 0 6 0 3 0 P F s t r a P e r a p S 0 0 8 5 0 3 0 P S 3 2 9 0 8 0 0 0 0 t e s 1 e m a N...

Страница 8: ...ble routing the signal cable near other onboard electrical equipment Also avoid running the cable in parallel with power cables A magnetic compass will be affected if placed too close to the scanner u...

Страница 9: ...radiator on the radiator bracket 6 Coat the radiator fixing bolts 4 pcs with anticorrosive sealant Fasten the scanner radiator to the radiator bracket with the radiator fixing bolts flat washers and s...

Страница 10: ...seal washers may be damaged Scanner unit Mounting platform Silicone sealant Flat washer Rubber mat Seal washer Figure 1 7 How to fasten scanner unit to mounting platform 5 Coat flat washers spring wa...

Страница 11: ...l washers 9 Reassemble RF unit cover and upper chassis 10 Set four knob caps supplied into outside fixing holes 11 Do steps 6 8 in Outside fixing holes 1 5 Display Unit Installation Mounting considera...

Страница 12: ...n force the mounting place if necessary 1 Mark the screw locations by using the hanger as a template 2 Drill five pilot holes for the hanger 3 Install the hanger using the screws sup plied as the inst...

Страница 13: ...rubber vibration isorators stabilize the display unit against ship s vibration Attach them to the mounting bracket if necessary as follows Rubber Vibration Isolator supplied with bracket 03 112 1402 A...

Страница 14: ...nner unit chassis cover opened 2 Unfasten the cable gland assembly plate gasket flat washer 3 Pass the signal cable w connector through the bottom of the scanner unit chassis Pass the cable through th...

Страница 15: ...e cable along here Lead in cable here J821 VH9P J824 NH13P J823 VH4P Clamp Figure 2 6 Scanner unit chassis cover opened 9 Fix the signal cable with the cable clamp 10 Release the stay and close the co...

Страница 16: ...the EBL Electronic Bearing Line may be displayed on the display You will need the following cable and A D converter AD 100 both optionally supplied to make the connection AD 100 option To GYRO connect...

Страница 17: ...se holder on the rear panel This fuse is for use with 12 VDC power supply For 24VDC or 32 VDC power sup plies please exchange the fuse with the 5A fuse supplied CAUTION Use the proper fuse Use of an i...

Страница 18: ...out 10 seconds until the INSTALLA TION menu appears After checking the unit for proper installation its time to adjust it WARNING Before transmitting the radar make sure no one is near the scanner uni...

Страница 19: ...ied technician Remember that the scanner housing fixing bolts remain untightened They should now be secured if the following alignment is not necessary 1 Identify a suitable target for example ship or...

Страница 20: ...Press the MENU key to complete the setting 3 6 Measurement of Blind Shadow Sectors In some shadow sectors it should be remem bered that there may not be sufficient inten sity to obtain an echo from ve...

Страница 21: ...It is a waste of time to attempt the operation in anything other than very smooth water with little wind 2 Another method is to observe the shadow sector against a background of sea clut ter Any shado...

Страница 22: ......

Страница 23: ......

Страница 24: ......

Страница 25: ......

Страница 26: ......

Страница 27: ......

Страница 28: ......

Страница 29: ......

Страница 30: ......

Страница 31: ......

Страница 32: ......

Страница 33: ......

Страница 34: ......

Страница 35: ......

Отзывы: