Raymarine ST40 and Triducer®
February 26, 2002
The first week of March Tortuga goes feet dry (Old Navy term) and has her bottom
painted. It will be the perfect time to replace her 20-year old fathometer
with the new Raymarine ST40 display and Triducer®
Multisensor. The display shown below is capable of presenting two of three
sensor values at the same time. The choices are depth, speed and water
temperature. The Triducer is a bronze unit and the photo below is 50% of
the actual size. The triducer orientation on the hull is with the upper
right portion of the fairing (in the photo) pointing forward when mounted.
The initial ST40 arrived with the plastic through hull transducers. It was
my mistake to order that unit since one should never use plastic fittings on a
wood hull. The Raymarine literature specifically warns that the expansion
and contraction of the wood will crack the plastic. So a quick call to
WestMarine got us in contact with a Raymarine specialist who corrected the
order. This unit has a removal paddle wheel assembly (speed sensor).
This unit can be removed during periods of non-cruising to minimize fouling.
There is a flap valve in the housing which keeps water intrusion to a minimum
until the blank plug is inserted.
A quick check of the cable from the triducer shows that the plugs are not compatible with the ST40 display. A call to Raymarine provided this solution. Cut the connectors from the triducer, install spade lugs to match the ST40 and match the color coding of the wires.
Stay tuned as we complete the yard trip on the 8th of March at the Huckins Yacht Facility in Jacksonville.
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| Raymarine Triducer® Multisensor with Valve | ST40 BiData Display |
Here is the port side footing for the old sensor which will be modified while at
Huckins.