NASA CLIPPER DEPTH SOUNDER

[JOEMORAN]

The same friend also gave me a NASA CLIPPER DEPTH SOUNDER. This is to replace a non-functioning NAVICO 160 DS sounder. The boat is already fitted with an "in hull transducer fitting". It looks to me that the new transducer is the same size as the old and would fit in the old fitting...is this ok to do? Also, what is the function of the "oily medium" in this fitting? Is this oil to be used with the new transducer or what?? Again would appreciate help/guidance. Thank you....Joe Moran

 

[kingfisher]

Count your blessings: you don't have to drill/glass/do anything. Just slide the transducer in the tube WITH the oil bath.

The oil is castor oil, and lets the signal go through. If it's a tight fit, slide in the transducer carefully: there must be NO air bubbles in the oil, or the signal won't transfer. If you installed the transducer, and get no signal, there could be some air bubbles trapped in the oil. Simply tap the tube gently, or wait 24hrs for the oil to settle.

Obi-Wan
http://sirocco31.tripod.com

 

[JeremyF]

The oil is there to ensure there is no air between the sounder and the hull.

I wouldn't bother messing around using the old fitting. Remove it. Fully clean and degrease the area using oven cleaner, and fit the new Clipper sounder

Jeremy Flynn

 

[Andrew_Fanner]

I bought a new NASA, and the in hull transducer mounting bits, to replace a dubious SeaFarer. A telephone enquiry to NASA earlier this week advised that I could reasonably expect the system to work if I unplugged the transducer cable from the old sounder and plugged it into the new NASA unit, not forgetting to connect the power leads as well!

I've not tried this yet, more news in a week or so, when I get round to doing it.