Log transducer

TimTimmeh

Member II
Last year I hit a log that broke the paddle wheel on my log transducer (no pun intended). It is an old Navico dl200 out of production. I really don't want to replace my old electronics, i even have a second set of the head units. Seems to me that the log should just be sending a pulse, which I should be able to calibrate with the existing electronics, but all the new units are advertised as sending NIMEA serial data.
Any ideas where I could find an old fashioned paddle wheel transducer?
 

Roger Janeway

Member II
Signet Marine in Southern California still sells and services their paddlewheel sensors and display units. They were very helpful when I needed to replace my existing Signet Marine parts last year. However, I do not know how much work would be involved in substituting Signet's thru-hull fitting for your existing fitting. They even seem to have revived their analog knotmeter, which requires no separate electrical connections. I recognize that many people, for good reason, think that anyone bothering to use a paddlewheel speed sensor in these times is like someone who insists on using a horse to pull his car along the street.

 

TimTimmeh

Member II
Thanks, I'll check them out. The thing with your analogy is I've already got the carriage and the harness i just need to replace the lame horse.
 

JPS27

Member III
I just replaced my signet instruments this spring rather than glass over the thru hulls or find new/modern instruments. It just seemed the simplest thing to do given all the other spring work I was doing. They were very helpful. Aaron is the second or third generation to run the place. He was very helpful.
 

windblown

Member II
I may have one on my E32-3. We replaced our depth transducer with a DST800 last season. The old Navico log transducer with its red paddle wheel is still in the other thru hull. Can you send more specs about your model to see if it’s a match? Feel free to pm me.
 
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