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[Amel] B&G Sonic Speed sensor and "the barnacle"
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David Mackintosh <sv.highland.fling@...>
at a wild guess it is probably a lens/sensor protector
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regards David On 8 August 2010 13:54, Judy and Bill aboard SV BeBe <yahoogroups@...
wrote:
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Richard03801 <richard03801@...>
Bill this looks like the lens and and cover. Can or will you please confirm that your photo is from the "upper" hull mount sensor and not the keel unit. I think if it is the upper you can access-it from the forward cabin. If it is the keel you most likely have a big job on your hands. We have an SM and getting to the keel unit would be a major pain to the point that I'd consider putting in a new speed and water temp unit in place of the forward sensor. I know it's not Amel but given your current location well we all do what we have to do. In any case we would NOT go to sea w/0 a fix or at least fast expoxie on the hole and deal with later. Good luck.
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Regards Richard Piller On Aug 8, 2010, at 9:44, David Mackintosh <sv.highland.fling@...> wrote:
at a wild guess it is probably a lens/sensor protector |
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Hi Bill,
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go to http://www.bandg.com/upload/BandG/Documents/Manuals/sonicinstall.pdf It is a Manual we have not normally on board. There is a sketch of the sensor and of its neoprene cap. Tomorrow - today is Sunday- I'll call to a local dealer I know for help. All the best Gianni sv EUTIKIA ----- Original Message -----
From: Richard03801 To: amelyachtowners@... Sent: Sunday, August 08, 2010 5:03 PM Subject: Re: [Amel] B&G Sonic Speed sensor and "the barnacle" Bill this looks like the lens and and cover. Can or will you please confirm that your photo is from the "upper" hull mount sensor and not the keel unit. I think if it is the upper you can access-it from the forward cabin. If it is the keel you most likely have a big job on your hands. We have an SM and getting to the keel unit would be a major pain to the point that I'd consider putting in a new speed and water temp unit in place of the forward sensor. I know it's not Amel but given your current location well we all do what we have to do. In any case we would NOT go to sea w/0 a fix or at least fast expoxie on the hole and deal with later. Good luck. Regards Richard Piller On Aug 8, 2010, at 9:44, David Mackintosh <sv.highland.fling@...> wrote: > at a wild guess it is probably a lens/sensor protector > > regards > > David > > On 8 August 2010 13:54, Judy and Bill aboard SV BeBe <yahoogroups@... >> wrote: > >> >> >> Boat stories can really be unreal. Here is one of those... >> >> A short time ago we noticed that the sonic speed was not working. I >> suspected fouling on the sensors. Today we were preparing to leave for >> Singapore and I put on scuba gear to clean the propeller and check the hull. >> I found only a single barnacle on the hull...it was on the rear facing sonic >> speed sensor. I gripped the barnacle and pulled. Something came off with the >> barnacle...see photo at >> http://groups.yahoo.com/group/amelyachtowners/photos/album/1217837093/pic/534911356/view?picmode=&mode=tn&order=ordinal&start=1&count=20&dir=asc >> >> I do not know yet if the speed sensor is working because we have not left >> the dock, but the red light on the sonic speed computer is on, indicating >> that it is working; and the Hydra FFD is showing several 10ths of a knot >> which is likely the tidal drift. >> >> I am not sure what I am dealing with here. Can anyone tell me where the >> sensor is accessed from inside the boat? Is this piece a piece of the >> sensor, or some sort of plug? >> >> Any input and suggestions would be appreciated. >> >> Best, >> >> Bill >> s/v BeBe, SM2k, #387 >> Currently Malaysia >> >> >> > > > > > > > ------------------------------------ > > Yahoo! Groups Links > > > ------------------------------------------------------------------------------ Nessun virus nel messaggio in arrivo. Controllato da AVG - www.avg.com Versione: 8.5.441 / Database dei virus: 271.1.1/3056 - Data di rilascio: 08/07/10 06:28:00 |
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Judy and Bill aboard SV BeBe <yahoogroups@...>
Richard,
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It is the upper hull-mount sensor i.e the rear facing sensor. Bill s/v BeBe --- In amelyachtowners@..., Richard03801 <richard03801@...> wrote:
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Judy and Bill aboard SV BeBe <yahoogroups@...>
FYI, I received the following email from Boris COMPAGNON at Amel After Service:
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"The rubber bumper you have in hands is just a protection cover of the sensor. If this not in place, you may find the sensor disturbed while sailing...The informartions may be wrong. You can reglue it. There is no access for this sensor from inside the boat." Best, Bill s/v BeBe, SM2k, #387 Currently Malaysia --- In amelyachtowners@..., "Judy and Bill aboard SV BeBe" <yahoogroups@...> wrote:
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Richard03801 <richard03801@...>
Bill in the forward cabin there is a through hull sending unit for the speed sensor
You can remove it ( be sure to have a wood plug to fit the hole) and replace the unit. I simply don't know If the "seawater" sensor comes out with it. I seem to "think and that is always dangerous" it does. The other question can you get the needed replacement parts locally I think Amel is closed for summer French holidays. I will see if I can find a solution here in Annapolis. There Must be a BG dealer here that knows. Regards Richard Piller On Aug 8, 2010, at 20:15, "Judy and Bill aboard SV BeBe" <yahoogroups@...> wrote:
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Richard03801 <richard03801@...>
I guess that settles that so much for the eyeball test on this one.
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Regards Richard Piller On Aug 9, 2010, at 3:07, "Judy and Bill aboard SV BeBe" <yahoogroups@...> wrote:
FYI, I received the following email from Boris COMPAGNON at Amel After Service: |
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Bill,
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I have contacted the main B&G support in Viareggio. They told me that the neoprene extension is mainly for protection of the transducer. For now you can sail but you have to keep it cleaned, obviously with great attention. The technician was working and sailing out of laboratory...in these days there is a lot of work, but he told me that as soon as possible, with the trasducer in his hands, he could check how to re-attach the extension under water..if possible. Ciao Gianni ----- Original Message -----
From: Judy and Bill aboard SV BeBe To: amelyachtowners@... Sent: Monday, August 09, 2010 2:15 AM Subject: Re: [Amel] B&G Sonic Speed sensor and "the barnacle" Richard, It is the upper hull-mount sensor i.e the rear facing sensor. Bill s/v BeBe --- In amelyachtowners@..., Richard03801 <richard03801@...> wrote: > > Bill this looks like the lens and and cover. Can or will you please confirm that your photo is from the "upper" hull mount sensor and not the keel unit. I think if it is the upper you can access-it from the forward cabin. If it is the keel you most likely have a big job on your hands. We have an SM and getting to the keel unit would be a major pain to the point that I'd consider putting in a new speed and water temp unit in place of the forward sensor. I know it's not Amel but given your current location well we all do what we have to do. In any case we would NOT go to sea w/0 a fix or at least fast expoxie on the hole and deal with later. Good luck. > Regards > Richard Piller > > ------------------------------------------------------------------------------ Nessun virus nel messaggio in arrivo. Controllato da AVG - www.avg.com Versione: 8.5.441 / Database dei virus: 271.1.1/3056 - Data di rilascio: 08/07/10 06:28:00 |
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Belit Bh <belitbh@...>
Hi,
We also have a small problem with the same sensor (posted few weeks ago), and was actualy wonderring: why is it needed at all, as most of us have more then one GPS aboard which indicates the speed more reliebly? I might be giving up too easy, but is there any real loss by just forgetting about it? ________________________________ From: Giovanni Testa <gtesta23@...> To: amelyachtowners@... Sent: Mon, August 9, 2010 10:20:59 AM Subject: Re: [Amel] B&G Sonic Speed sensor and "the barnacle" Bill, I have contacted the main B&G support in Viareggio. They told me that the neoprene extension is mainly for protection of the transducer. For now you can sail but you have to keep it cleaned, obviously with great attention. The technician was working and sailing out of laboratory...in these days there is a lot of work, but he told me that as soon as possible, with the trasducer in his hands, he could check how to re-attach the extension under water..if possible. Ciao Gianni ----- Original Message ----- From: Judy and Bill aboard SV BeBe To: amelyachtowners@... Sent: Monday, August 09, 2010 2:15 AM Subject: Re: [Amel] B&G Sonic Speed sensor and "the barnacle" Richard, It is the upper hull-mount sensor i.e the rear facing sensor. Bill s/v BeBe --- In amelyachtowners@..., Richard03801 <richard03801@...> wrote: ---------------------------------------------------------- Nessun virus nel messaggio in arrivo. Controllato da AVG - www.avg.com Versione: 8.5.441 / Database dei virus: 271.1.1/3056 - Data di rilascio: 08/07/10 06:28:00 [Non-text portions of this message have been removed] |
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Judy and Bill aboard SV BeBe <yahoogroups@...>
We find it good to know the effect of the current on our SOG. GPS gives us accurate speed over ground (SOG); sonic speed gives us accurate speed through the water...the difference is the result of the positive or negative current. It is a quick and easy solution to know why the SOG is as bad, or as good, as indicated in SOG.
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Armed with this information, you can make decisions that can effect your arrival time...or, at a minimum, it will give you something to discuss with your crew.;) Best, Bill s/v BeBe, SM2k, #387 Currently Singapore --- In amelyachtowners@..., Belit Bh <belitbh@...> wrote:
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Belit Bh <belitbh@...>
Thanks Judy and Bill, this is definitely one good use for this.
________________________________ From: Judy and Bill aboard SV BeBe <yahoogroups@...> To: amelyachtowners@... Sent: Sat, August 14, 2010 8:51:28 AM Subject: Re: [Amel] B&G Sonic Speed sensor and "the barnacle" We find it good to know the effect of the current on our SOG. GPS gives us accurate speed over ground (SOG); sonic speed gives us accurate speed through the water...the difference is the result of the positive or negative current. It is a quick and easy solution to know why the SOG is as bad, or as good, as indicated in SOG. Armed with this information, you can make decisions that can effect your arrival time...or, at a minimum, it will give you something to discuss with your crew.;) Best, Bill s/v BeBe, SM2k, #387 Currently Singapore --- In amelyachtowners@..., Belit Bh <belitbh@...> wrote:
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