+1 on the chafed wire! However, "every journey begins with a single
step" and all that - might's well test the wire where it's easiest to
do: in port. To clarify the procedure a bit: jumper the two wires,
being tested, at the masthead. Also, don't forget to test the shield
(if there is one), too.

As to the AWI and anemometer sensors, IIRC, there's a breakout box to
allow the wiring to be disconnected if the mast's pulled. With the
careful use of some alligator clips, the sensors can be tested at deck
level on the stub from the breakout box back to the display (once the
entire run's been tested, of course).

Cheers,
   Rick Emerson

Richard Cassano wrote:

> I believe Rick's continuity test is the best way to eliminate the wire
> as the fault in the system with out cost or hassle, however, keep in
> mind it is possible to have a chaffed wire jacket that only shorts out
> when the boat moves a certain way. Another words, the faulty wire may
> be an intermittent issue and test fine while you are up the mast with
> the paper clip and than frustrate you when you come down to the
> instruments and find there is still a problem. Wire is basically
> cheap, (compared to a new transducer) and if your instrument wire is a
> few years old the only true solution is to replace it. If you are
> going up the mast anyway you can have someone pull the old wire at the
> base of the mast while you feed the new one spliced to the end of the
> old.
>
> I'm dealing with a similar problem with my wind instrument. My problem
> could be the transducer at the top of the mast or it could be a
> chaffed wire in the mast. the least expensive fix would be to replace
> the wire first. If the problem persists than I will get the new wind
> transducer.
>

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Received on Tue Jun 13 08:58:39 2006