Chapter 3: Installation 13
• Be clear of other through-hull fittings or projections.
• Have sufficient clearance inside the hull to fit the nut.
• Have 4 in (100 mm) of headroom to allow for withdrawal.
• Be within 10
° of the vertical, forward, aft and athwart ships.
There must also be a viable route for the transducer cable to be routed to the
instrument.
Instrument
CAUTION:
The presence of moisture at the rear of the instrument could cause
damage either by entering the instrument through the breathing
hole or by coming into contact with the electrical connectors.
ST60 instruments can be fitted either above or below deck, provided the rear of
the instrument is sited where it is protected from contact with water.
Each instrument must also be positioned where:
• It is easily read by the helmsman.
• It is protected against physical damage.
• It is at least 9 in (230 mm) from a compass.
10˚ maximum
Maximum transducer angle
D4350-1
81038_4.book Page 13 Wednesday, March 24, 2004 3:17 PM
