[C320-list] Autohelm depth display flashing zero...sometimes

[Kevin Rooney]

Thank you, Bob, Chris, Mike, Onat, Joe, Gene, and everyone else who weighed
in. Very helpful info!

Kevin
S/V Cecilia Ann, #211
Deale, MD
http://kevjot.com/boat/


On Thu, May 28, 2020 at 11:50 AM Bob Borelli <cassattc22 at hotmail.com> wrote:

> Hello Kevin,
>
> I have the Autohelm TRIDATA ST50 Plus (Tridata & Repeater depth & speed)
> on my boat.
> I have not had a similar issue to yours.
> When underway & moving, if my ST50 reads 0.0,  I remove & clean the ST600
> paddle wheel, then it reads the speed.
> I have to clean the paddle wheel frequently
> I do have the ST50 manual if you would like a copy, I can scan & email.
>
> The ST50 speed read out does not match the SOG on my Standard Horizon
> HX870 VHF.
>
> Celestial navigation with a sextant is alot of fun!
>
> Bob Borelli
> C320 no. 209 'Elusive'
> Georgetown, MD
>
>
> Sent from Mail for Windows 10
>
> From: Chris Burti
> Sent: Wednesday, May 27, 2020 6:59 PM
> To: C320-List at Catalina320.com
> Subject: Re: [C320-list] Autohelm depth display flashing zero...sometimes
>
> Kevin,
> Unless my ST60 transducer is seated perfectly, my speed will not read.
> Since I need to take it out to avoid barnacles, it is a frequent problem
> for me.
>
> Thanks,
> Chris Burti
> Commitment #867
> Farmville, NC
>
> From: Kevin Rooney
> Sent: Wednesday, May 27, 2020 5:03 PM
> To: C320-List at catalina320.com
> Subject: [C320-list] Autohelm depth display flashing zero...sometimes
>
> Transducer failing?
>
> I have a '95 C320 with the original instruments (so 25 years old now). The
> display for the Autohelm depth finder recently began flashing "0:00" for
> extended periods, but it works other at other times.
>
> I think this is an ST50 unit.
>
> I'm guessing the transducer is getting ready to go bad but don't really
> know. Has anyone dealt with this?
>
> Also, my Autohelm speed display just reads zeroes all the time and has for
> a while. I haven't dealt with that because speed over the bottom is
> available on my GPS chart plotter. I assume this is unrelated to the depth
> meter but don't know for sure.
>
> Does anyone here know about these things? Any help would be greatly
> appreciated!
>
> Kevin
> S/V Cecilia Ann, #211
> Deale, MD
> http://kevjot.com/boat/
>
>
>
>
>