Re: sonic speed on SM 2000

Oliver Henrichsen, SV Vela Nautica


As the old B&G Hydra system gave up on our 54, and also the sonic speed system failed. I did not see a reasonable way to go on and repair the old system. 
So we renewed the windvane and use Triton2 instruments. 
To replace the sonic speed sensor, we choosed the Airmar DST800 tridata sensor. It fits in the through hull of the old deapth sensor and givs all, speed, deapth, sea temperature. 
With that renewal comes an NMEA2k bus and all the old Hydra central cpu and extension processor and all the wiring goes off. 
In that way we did not need to drill a new throughull and keapt the compfortable sonic speed without paddle wheel. 

Oliver from Vela Nautica Amel54#39 

On Wed, May 13, 2020, 10:30 CW Bill Rouse <brouse@...> wrote:

I sent you an email with the instructions you need.

CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar

On Wed, May 13, 2020 at 1:55 AM Marco Mancini <marcomancini61@...> wrote:
Dear Paul and Arno, 
thanks for your usefull  info. 
Do you have also examined how to remove the old sensor  (  the aft one) and its cable? its frontal part with the probe  seems to be glued in the front part pf the keel.
SM Desiree , Italy , Naples

Il giorno 13 mag 2020, alle ore 00:09, Paul Dowd and Sharon Brown <paul.dowd@...> ha scritto:

I just got replacements from here:
They were delivered to the UK. I Have not used them yet but they look to be correct.
S/Y Ya Fohi - Amel 54 #98 - Grenada
From: <> On Behalf Of Marco Mancini
Sent: 12 May 2020 22:17
Subject: [AmelYachtOwners] sonic speed on SM 2000
 On our SM the sonic speed,  the one with the two sensors,  that is connected to Hydra 200 is giving zero speed on the hydra 2000 monitor. 
This was probably due to the loss of the neoprene cap of the aft  sensor . Unfortunately this probe is out of production from long time.

Please Did  you hknow how to  repair it ?  Do you know how replace the cable and the aft sensor?
Italy SM304 

Ya Fohi - Amel 54 #98

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