Chapter 2: Transducer Installation
Installations with a large number of instruments on a
bus may require
a second riigmain connection to the power supply breaker to prevent
excessive voltage drops. Whether a second ring main is required can be
determined from the following:
Cable run
(33ft)
Single connection:
13 instruments maximum
connection:
26 instruments maximum
Cable run
20m (66ft)
2.1 Connection to the Control Head
The ST50 Plus Wind is supplied with a transducer cable tail and connector
which
plugs into the 30m
cable.
2.2 Masthead Transducer Installation
n
Single connection:
7 instruments maximum
Second connection:
13 instruments maximum
The second
should be connected to the spare lead on the last
instrument in the chain and directed back to the circuit breaker.
Connection to
Autopilots
the installation includes a
compatible Autopilot
ST50
ments may be connected to the
bus at any point. No independent
connection to the 12V power supply is necessary as the instruments receive
power from the Autopilot course computer.
To autopilot
BUS
Connection
To any further
ST50 Instruments
or Autopilot
Control Units
For best performance
mounting block must be fixed to a horizontal
surface.
mast top is not horizontal, make up a wedged packing piece (1).
1 .
position of the two self-tapping screws.
