Chapter 3: Installation 15
• Beas near as possible to the centre line of the vessel.
• Beclear of other through-hull fittings or projections.
• Havesufficient clearance inside the hull to fit the nut.
• Have100 mm (4 in)of headroom to allow for withdrawal.
Inaddition to the above requirements, the depth transducer must be
mountedwithin 100of the vertical, forward, aft and athwart ships.
Instrument
CAUTION:
Thepresence of moistureat the rear of the instrument could cause
damageeither by entering thei nstrumentthrough the breathing
holeor by coming into contact with the electrical connectors .
ST60instruments can be fitted either above or below deck, provided the
rearof the instrument is sited where it is protected from contact with wat er.
Eachinstrument must also be positioned where:
• Itis easily read by the helmsman
• Itis protected against physical damage
• Itis at least 230 mm (9 in)from a compass
• Itis at least 500 mm (20 in)from radio receiving equipment
• Thereis reasonable rear access for installation andservicing
10˚ maximum
Maximum transducer angle D4350-3
81040_1.book Page15 Thursday, November7, 2002 10:21AM