Anenometer cables & removing old glue update

[Windfall]

Anenometer cables & removing old glue update

Thank you all for the advice re' removing old glue from fibreglass deck head. I braved the angle grinder and brass cup (pretty scary) and it did a very good job in half the time.

Another question now. We are fitting a wind speed gizmo to the top of the mast and I wondered is it possible to cut the transducer cable as it comes through deck?

Mast is keel stepped & display for the windspeed is in the cockpit.....I don't want to have to chase the cable throught the cabin each time the mast is unstepped.

Instrument is Raymarine ST40

Any ideas please?

Regards
Sharon

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[Talbot]

Re: Anenometer cables & removing old glue update

I recommended the brass cupp and grinder, and am glad that you found it worked (as I said before, it takes initial nerve and dont ever use a steel wheel/forums/images/icons/smile.gif)

I faced the same problem about the wind instruments last year, and eventually chopped my line and installed a waterproof connector - no problem with the performance of the instrument. I have not been so happy with the waterproof connector, and am considering changing to

by Silva, and a through deck cable gland.

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[Benbow]

Re: Anenometer cables & removing old glue update

In my experience you should do anything you can to avoid deck plugs, they give constant grief. If you must have a join, send the wire through a gland that will take a plug and make the connection inside.

Not sure why this is an issue with a keel-stepped mast, doesn't all the wiring exit the mast inside the boat ?

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[Windfall]

Re: Anenometer cables & removing old glue update

You're right of course..I didn't really mean 'deck plug' as all the wires do exit the mast once it is inside the cabin (I'm s'posed to be running the payroll year end but its just too boring! /forums/images/icons/frown.gif but it does mean I haven't got too much time to worry about semantics - sorry /forums/images/icons/smile.gif)

My main question really was is it possible to cut the cable?....when installing the log & echo sounder I was under pain of death from 'im indoors if I so much as nicked the cable.

Any more thoughts?

Sharon

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[tome]

Re: Anenometer cables & removing old glue update

Since your mast is keel stepped, the cable can be brought out of the mast below deck (as mine is). Put a terminal box in the headlining close to the mast and cut the cable, leaving plenty of slack. Use the junction box to join the 2 pieces. This makes life easy when unstepping or stepping the mast.

We have ST60 and this works fine. You don't need waterproof connectors.

Some echo-sounders have tuned transducers which are matched to the cable length, which is why it isn't a good idea to cut them or to put connectors in them. This isn't the case for wind instruments so no worries making the cut. Do join the screen in junction box.

<hr width=100% size=1><P ID="edit"><FONT SIZE=-1>Edited by tome on 15/04/2004 12:28 (server time).</FONT></P>

 

[jerryat]

Re: Anenometer cables & removing old glue update

Hi Sharon!
Delighted you got all the glue off ok. Have you put the new stuff on yet? Nail biting job as far as I was concerned (doing it single-handed) as the damned vinyl costs so much!

Looks perfect though, so well worth all the effort. Now in the middle of re-lacquering all the woodwork ............!

Re the anemometer, agree with Tome, just connect inside, you don't need a waterproof connection then. I have used a simple 'chocolate block' for 15 years with no problems.

Good sailing!


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[roger]

Coax cable cutting

If you cut coax cable you will find that sea water will wick up it an amazing distance, the wire will turn black and you will have enormous problems. Thats one reason not to cut cable. The second is that some people have no idea how to make a join in cables. Badly made junctions also cause difficult to solve problems. Any joint is liable to let water in making matter worse.
That apart I'm in total agreement. Make joins or plug connections in the dryest bit of the boat you can find - and above all avoid deck plugs

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[JBR]

Re: Anenometer cables & removing old glue update

Last week my crew cut the cable and tried a fitting a 5 pin din cable connector below decks (keel stepped mast) had problems with soldering so threw it away. Soldered the strands together, carefully taped to insulate from each other, works perfectly. Next time mast has to be removed crew informs me that soldered joints can easily be parted.

<hr width=100% size=1>Get Carter

 

[jerryat]

Re: Coax cable cutting

Hi!

I doubt if the cable is co-axial. Mine is a single cable but with six independant wires inside. It is these, with soldered ends, that are inserted into the choc-box.

Agree that if the cable IS co-axial, a more sophisticated connection should be made.

Good sailing!

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[Windfall]

Re: Anenometer cables & removing old glue update

hello Jerryat

We're not replacing the headlining this year...(the boat is an ongoing major project. As a 'temporary' /forums/images/icons/smile.gif measure I have painted all the previously lined areas with off white gloss.

It looks surprizingly good so temporary might turn permanent! But you can see why I was so keen to remove all the old glue & fluff.

Sharon





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