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

[Gene Helfman]

we had the same depth flashing problem with the same equipment. corrected
by replacing the display unit, bought on Ebay.
Satori 1997 #398

On Wed, May 27, 2020 at 4:05 PM Jack Brennan <jackbrennan at bellsouth.net>
wrote:

> I always view speed as outdated technology, like a sextant.
>
> My Open CPN plotter gives me extremely good speed over ground. It’s not
> hard to figure out current where I sail when you combine that and the feel
> of the boat.
>
> When I depended on a knot meter, I found that it was often inaccurate due
> to algae growth, etc.
>
> Jack Brennan
> Sonas, 1998 Catalina 320
> Tierra Verde, Fl.
>
>
>
> 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/
>
>
>

-- 
Gene Helfman, Professor Emeritus
Odum School of Ecology, University of Georgia
PERMANENT address:
    498 Shoreland Dr., Lopez Is., WA 98261
    (360) 468-2136
    genehelfman at gmail.com

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