Simrad Halo20, Installation Manual

Page: 15 / 32

| 15
Installation | Halo20, 20+ and 24 Dome Radars Installation Manual
5
Orange Data Transmit -
6
White / Orange Data Tr
7
Red +12/24 V DC
8
Drain Shield
Installing the scanner
Use the supplied mounting template and tape it securely to the chosen location. Before
drilling, check that:
•
you have oriented the mounting template correctly so that the front of the scanner unit
will face the front of the vessel
•
clearance to other objects in all directions is >255 mm (10.0”) for Halo20/20+ and >315 mm
(12.5”) for Halo24 from the center of the product as indicated on the mounting templates
•
the thickness of chosen mounting surface must be at least 3 mm (0.11“) and maximum 18
mm (0.7”). If the location is thicker, longer bolts than those supplied will be required
¼
Note:
The bolts supplied are M8 x 30 mm. If you need to use longer bolts make sure they are
marine grade stainless steel and allow for minimum of 8 mm (0.3”) and maximum of 18 mm
(0.7”) of thread contact.
1.
Use a 9.5 mm (3/8”) drill bit to drill the four holes where shown on the mounting template.
2.
Connect the scanner interconnection cable. Refer to “Scanner connection” on page 14.
3.
If mounting bolts penetrate a roof or a closed dry cavity, use a marine high-grade sealant/
adhesive compound to seal around the bolt holes. Do not fill holes directly with sealant.
4.
Position the scanner carefully over the bolt holes so that they are aligned.
5.
Place a lock washer and a plain washer onto each bolt.
6.
Where necessary, apply a small amount of sealant to the bolt thread length that passes
through the mounting surface. Avoid applying sealant to the thread inserted into the radar.
7.
Insert bolts into the scanner’s threaded mounting holes and tighten securely.
¼
Note:
The torque settings for the mounting bolts are 12 Nm – 18 Nm (8.9 lb ft – 13.3 lb ft).
¼ Note:
Any extension should be made using appropriate marine grade cable, using tinned
copper conductors.