Question about Raymarine ST40 Wind System Rotavecta speed/direction sensor

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Manual I need urgently a wiring diagram to fix my ST40 wind wont work anymore even with 12 DCV apllied directly. Help Help

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Go to the website, they have manuals for their products even ones that have been discontinued.

Posted on Mar 04, 2014


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Posted on Jan 02, 2017

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SOURCE: My ST40 bidata was working

If this is being used with a transom mount transducer, then you want to make sure it's adjusted properly and that the "pitot tube", so to speak, is clear and that the tubing is not kinked, collapsed, or obstructed. I don't believe these come with a wheel to measure the speed so, you will have to first check your tubing and check for clogs and obstructrions. Check the routing and make sure everything is clear. If you have any doubts, start by relacing the tubing, then the transducer, if no sucess.

Posted on Jul 24, 2011

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Thermostat has no 12 DCV power. I need a wiring diagram to find where to power comes from.

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How can one test a ST40 wind instrument ?

According to the Raymarine forum, aside from making sure that the spade lug connections are good and clean, there isn't a field test for the ST40. The recommended remedy is for you to send the complete unit to Raymarine for evaluation. Here's the link to that forum.
Sorry I couldn't be the bearer of better news.

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Where can I get an installation manual for a Simrad SD 12 Wind Instrument set?


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1 Answer

Hello, our Raymarine ST40 depth sounder on our trailer sailer has stopped working only shows 0.00 depth on the display screen. However the metres symbol now flashes on/off. I have checked the cable...

now there is a chance that the transducer is bad ,, but I would check the battery voltage and make sure you have a soild 12 volts to the unit. also in my many years of working with and installing these units on boats I have see the needle pins ( where the plug inserts in the back of the display unit ) bend and/or break off completely. look in the plug area of the display unit and make sure all pins are intact. one more place to look for the problem is in the plug itself, take the plug apart and inspect the wire connection and make sure they are all good. if after all the above has been checked then I would assume that it is the transducer itself.
if you have anymore questions with this problem, please feel free to write back and ask,


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1 Answer

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