Dan, there are a lot of us who regularly pull our speed transducers. You may 
get a pint of water inside (mine is under the dinette and drains into the 
bilge). Fear not. Get someone to spin the wheel and see if it works. 

 

Gary

30-1

 

From: CnC-List <cnc-list-boun...@cnc-list.com> On Behalf Of Dan via CnC-List
Sent: Thursday, October 11, 2018 10:58 Am
To: cnc-list@cnc-list.com
Cc: Dan <dgcorm...@gmail.com>
Subject: Re: Stus-List padwheel issues

 

I had a tech support ticket open with Actisense (the Digital NMEA product I'm 
using to read my data streams from my transducers) and they confirmed that if 
the padwheel is not spinning, NO data will be formed and no NMEA sentenses will 
be transmitted. SO - YES, the padwheel HAS to spin, and it's not a wiring issue 
(95% certain)... 

That said, I went out on deck and tried pulling a line along the underside of 
the hull to activate the wheel and tried using oars to move the water around 
the waterline but then it started to rain so I gave up the attempt. The only 
other non-evasive method is to get in the dinghy and try to reach the wheel 
with my hand... or bite the bullet and try pulling the sensor out completely 
and replacing it with the plug which to me sounds like extremely risky business 
but you guys seem to think it's a breeze...

 

WISH ME LUCK!

 

Dan

 

On Wed, Oct 10, 2018 at 10:57 AM Dennis C. via CnC-List <cnc-list@cnc-list.com 
<mailto:cnc-list@cnc-list.com> > wrote:

What Ed says. 

 

I never leave Touché’s paddle wheel in. Only put it in when we go sailing. 

 

Dennis C.

Sent from my iPhone


On Oct 10, 2018, at 8:34 AM, Edward Levert via CnC-List <cnc-list@cnc-list.com 
<mailto:cnc-list@cnc-list.com> > wrote:

Dan

 

You should have a plug which allows you to remove the transducer with the boat 
in the water. Simple process of pulling the transducer and inserting the plug. 
If done quickly, you might let 2 cups of water in. Will need a person spinning 
the paddle and one looking at the instrument.

 

Ed Levert

C&C 34 Briar Patch

New Orleans

 

On Wed, Oct 10, 2018 at 8:30 AM Dan via CnC-List <cnc-list@cnc-list.com 
<mailto:cnc-list@cnc-list.com> > wrote:

Thanks guys.

Difficult to get the padwheel moving when the boat is in the slip and there's 
no current lol.

I can try sticking my outboard motor in front of the boat and gunning it to get 
the water flowing... or I can get in the dinghy and try to reach under to spin 
the wheel manually...

 

Before I do that - I have a digital readout of my NMEA 0183 sentences so I can 
analyze the readouts line by line. I don't even have a readout for "0.0.0" on 
the speed (or any speed data at all) I'm wonderring IF the padweel isn't 
turning, it will literally give back NO data / sentences at all? not even a 
"0.0.0"?

 

Dan

 

On Wed, Oct 10, 2018 at 9:58 AM Matthew L. Wolford via CnC-List 
<cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com> > wrote:

I also had a paddlewheel issue caused by bottom paint.  I did not discover the 
nature of the problem was until the boat was out of the water.

 

From: Edward Levert via CnC-List <mailto:cnc-list@cnc-list.com>  

Sent: Wednesday, October 10, 2018 8:50 AM

To: cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com>  

Cc: Edward Levert <mailto:weeselev...@gmail.com>  

Subject: Re: Stus-List padwheel issues

 

Dan

 

The paddle wheel needs to spin to get a reading. I have an Airmar transducer 
for the ST 60. It stopped giving speed readings even though the paddle was 
clean and rotated easily. A new paddle solved the issue. My guess is that the 
build up of bottom paint was blocking the impulse signal the paddle creates. 
Perhaps scrapping the paddle free of paint might solve your problem.

 

Ed Levert

C&C 34 Briar Patch

New Orleans

 

On Wed, Oct 10, 2018 at 7:39 AM Dan via CnC-List <cnc-list@cnc-list.com 
<mailto:cnc-list@cnc-list.com> > wrote:

Hi all, I have a ST850 Airmar speed/temperature transducer that I'm trying to 
get working (again) with my new equipment. I'm pretty sure the issue is with 
the wiring so if any of you have this transducer maybe you know where I'm going 
wrong?

 

***My ST850 is from 2006 so I'm pretty sure it's not the "smart sensor" one 
that is supposed to output NMEA2000 sentences directly.

 

With my old system ONLY the green wire was hooked up to a B&G nav computer and 
the black and shield were connected to ground. (no temperature data)

 

I've got:

GREEN to Speed Pulse IN (not sure what "pulse" is ecactly)

Black, and Shield to Ground IN

Red to Speed Voltage IN

Yellow/Red Stripe to Temp IN

Brown to nothing

 

With this configuration I'm getting Temperature NMEA sentences, but no Speed. 
Anyone know where I'm going wrong? Does the padwheel have to be turning to get 
speed sentences?

 

Dan

Breakaweigh

C&C44

Halifax, NS

 

 

 

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Thanks everyone for supporting this list with your contributions.  Each and 
every one is greatly appreciated.  If you want to support the list - use PayPal 
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Thanks everyone for supporting this list with your contributions.  Each and 
every one is greatly appreciated.  If you want to support the list - use PayPal 
to send contribution --   https://www.paypal.me/stumurray

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Thanks everyone for supporting this list with your contributions.  Each and 
every one is greatly appreciated.  If you want to support the list - use PayPal 
to send contribution --   https://www.paypal.me/stumurray

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