Raymarine ST60 Log transducers

cpedw said:
It's a bit late but they are still promising Electromagnetic Log (transducer and data box) - Nasa Marine Instruments :

Coming soon:
A pulse output version of the Electromagntic Log to suit any previous NASA Marine paddlewheel log including all Target, Clipper Logs and Duet. Also works with Raymarine ST60 Log display.
Click product video below, connected to a Clipper Duet combined Depth and Log. Shown with kind permission of one of our valued beta testers.
Click to expand...

They are advertising the EML-3 for sale... Transducer
 
Does anyone have any further updates on how well the EML-3 performs?
Does it slot straight into the Raymarine/Airmar through hull fitting as a replacement for a paddle wheel - or does it require a special skin fitting? The NASA website implies that it needs it own low profile fitting, which is a shame - I'd try one without hesitation if it was a direct replacement.
Thanks...
 
nburrell said:
Does anyone have any further updates on how well the EML-3 performs?
Does it slot straight into the Raymarine/Airmar through hull fitting as a replacement for a paddle wheel - or does it require a special skin fitting? The NASA website implies that it needs it own low profile fitting, which is a shame - I'd try one without hesitation if it was a direct replacement.
Thanks...
Click to expand...
It definitely doesn't fit in the original Raymarine hull fitting - it's much shorter than the original transducer. Note too that the NASA through-hull doesn't have a baffle to slow the influx of water, so it's a bit more exciting cleaning it in the water!
 
AntarcticPilot said:
It definitely doesn't fit in the original Raymarine hull fitting - it's much shorter than the original transducer. Note too that the NASA through-hull doesn't have a baffle to slow the influx of water, so it's a bit more exciting cleaning it in the water!
Click to expand...
Does it need cleaning much?
 
I'm now into the second season with an EML transducer. It certainly doesn't get clogged by weed/critters anywhere near as easily as the paddlewheel used to. As the working part of the transducer is robust and (more or less) flush with the surface of the hull I found it quite easy to use a deck brush from the dinghy/pontoon to reach under the hull and give it a scrub. Obviously location of transducer affects the ability to clean.
Overall I'm very happy with the performance, accuracy and ease of cleaning.
I'm fairly sure you need to use the supplied through hull.
 
AntarcticPilot said:
It definitely doesn't fit in the original Raymarine hull fitting - it's much shorter than the original transducer. Note too that the NASA through-hull doesn't have a baffle to slow the influx of water, so it's a bit more exciting cleaning it in the water!
Click to expand...
Would it be feasible or sensible to make an adapter to fit into a Raymarine hull fitting? Perhaps using a Raymarine blanking plug...
 
cpedw said:
Would it be feasible or sensible to make an adapter to fit into a Raymarine hull fitting? Perhaps using a Raymarine blanking plug...
Click to expand...
No; the NASA sensor is shorter than the Raymarine one, by quite a lot. As the thread securing the transducer is on the inboard end of the through hull, I don't see any way of doing it. The NASA transducer needs to be flush with the hull.

I have no idea whether the thread on the securing cap is the same, either.
 
You must log in or register to reply here.

Share this page

Top