Kelvin Hughes CTX-A8 'X' Band Radar User Manual Installation Guide

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Document ID	224027
Application ID	cYIGgYZ5cvLiP7atrsuccw==
Document Description	Installation Guide
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	6.24kB (77964 bits)
Date Submitted	2002-02-01 00:00:00
Date Available	2002-03-29 00:00:00
Creation Date	2002-01-30 10:48:17
Producing Software	Acrobat Distiller 4.05 for Windows
Document Lastmod	2002-01-30 10:48:46
Document Title	Installation Guide

KH1254
Chapter 2
INSTALLATION OF UPMAST X-BAND TRANSCEIVER CAE-A12-20 (25kW)
GENERAL
The Upmast Transceiver comprises a casting with two cover plates. Both cover
plates are secured by four bolts and may be removed to access the motor and
transceiver PCBs mounted within. The PCBs are secured to mounting plates which
form a safety cage whilst in the closed position.
FITTING
The Upmast Transceiver should be installed in such a position to avoid any RF
interference and where Blind Arcs, caused by obstructions, e.g. masts, funnels,
etc, are eliminated or minimised. Funnels, crosstrees and other large obstructions can
also reflect energy and give rise to spurious echo returns, especially in close proximity to
land.
10
The Upmast Transceiver must not be mounted where the temperature exceeds
70oC.
11
The Upmast Transceiver must be kept clear of ship’s flexible communication
antennas to avoid damage to both.
12
The Upmast Transceiver must be mounted more than 914mm above any flat
surface, when the flat surface is greater than the diameter swept by the antenna.
13
The Upmast Transceiver must not be positioned in the close proximity of any
magnetic compass or D/F antenna, etc.
NOTE
A heavy duty earthing strap or cable must be taken from the upmast
transceiver/turning mechanism to the ship’s earth.
14
Position the Upmast Transceiver at the installation site, supporting the unit
where necessary, and mark out the mounting holes for drilling. Refer to Figure 1
for dimensions.
15
Allow sufficient cable length, (approximately 1m) on all cables to enable them to
be routed through the Transceiver unit. Refer to Figures 2 and 4 for details.
Ensure that there is sufficient slack on all cables to allow for full movement of the
equipment on its mounts during any sudden shock, or extreme movement of the vessel.
WARNING
THE UNIT MUST NOT BE LIFTED BY MEANS OF THE
ANTENNA OR WING CASTING. THE LIFTING SUPPORTS
MUST GO UNDER THE CASTING.
Issue 1
mkiv
mkiv
CD-4541
Power Consumption :
150VA
Turning Mech Weight :
30kg
Antenna (2.4m) Weight : 21kg
All dimensions in millimetres.
FWD
270
570
310
250
KELVIN HUGHES
2262 or 1840
EARTHING POINT
WAVEGUIDE FLANGE
1-2MM LESS THAN
OUTER HOUSING
MONITOR
ARM
COMPASS SAFE DISTANCES :Standard Compass
3m (Grade I)
Steering Compass
1.8m (Grade II)
Operating Temperature : -25 C to +55 C
Relative Humidity 95% : +40 C
OPERATING TEMPERATURE RANGE
(TORQUE LOADED TO 75 kg/m)
14 mm holes (4 0 ff )
M12 bolts
40
150
TURNING RADIUS 2412 or 1990
140
406
645
ON
310
270
135
WAVEGUIDE
OUTLET
In transit MonitorArm is stowed inside
Turning Mechanism carton
CABLE
GLANDS
SAFETY
SWITCH
OFF
PTFE WINDOW FITTED AT THIS CONNECTION
KH1254
Chapter 2
Figure 1 - Upmast X-Band Transceiver CAE-A12-20 (25kW):
Installation Dimensions
Issue 1
KH1254
Chapter 2
FWD
TB1C
TB1B
TB1A
TB2
PLB
POWER
SUPPLY
UNIT
HEADING
LINE PCB
VIDEO & SYNC
TERMINAL
PLATE
MODULATOR
CONTROL
PCB
EARTHING POINT
ON UNDERSIDE
MAINS FILTER
SHIP'S MAINS
SAFETY SWITCH
DISPLAY (38 CORE CABLE CODE M)
CD-4542
TX MONITOR ARM
Figure 2 - X-Band Upmast Transceiver: Cable Routing
Issue 1
mkiv
KH1254
Chapter 2
MONITOR ARM
16
The Monitor Arm is positioned by means of a channel above the glands at the
rear of the casting, and is secured by a clamp with two retaining screws. The
neon points to starboard when viewed from the rear of the transceiver.
17
The cable is routed through the gland nearest the channel and connects to PLA-7
(red) and PLA-8 (blue) on the Azimuth PCB (CTX-A106). Refer to Figure 3.
ELECTRICAL CONNECTION
18
For detailed electrical connection of cables to the transceiver unit, refer to the
installation diagrams in Figure 5. Figure 7 shows a typical arrangement with the
MkIV transceiver connected to the NUCLEUS 3 Display, via the Radar Interface Unit
(RIU). Ensure that all cables are secured to their associated entry point and that
screened cables are earthed to their respective units.
19
Connecting cables between the display and the transceiver should be limited to a
length of 65 metres. Where the distance between transceiver and display
exceeds 65 metres, special low loss co-axial cable should be used. Where the distance
between transceiver and display exceeds 180 metres, special low loss co-axial cable,
and line amplifiers for video and sync must be fitted (see Annex A).
20
Cable specifications are detailed in Paragraphs 24 onwards.
CHECKS AFTER FITTING
21
Setting to work instructions are described in Chapter 3, Commissioning. The
transceiver must be thoroughly checked for security, accessibility, and correct
cabling runs.
CAE-A106
PLA
10
BLUE
TO TX MONITOR ARM
RED
CD-1134
Figure 3 - X-Band Upmast Transceiver Transmitter Monitor Arm:
Connection Diagram
mkiv
Issue 1

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