*"As far as water temp goes, there is a thermister in the sensor that changes resistance in response to temperature change, but it would probably only show a very few ohms of resistance and might look like normal continuity unless you have a very sensitive meter."*
I thought the temp was part of the depth transducer not the paddle / speed? I will have to re -read this manual. "If your wind instrument is not hooked up to a GPS to get Speed Over Ground and heading information, then it uses the speed input from the speed log and the apparent wind information from the masthead sensor to calculate the true wind and the VMG information. There is an inherent error here in that SOG and speed through the water are different due to the impacts of current, but without boat speed information, it isn’t possible to know true wind unless you are standing still" Now you have opened more cans of worms? Like My wind gauge has been working fine. "Well" I thought it was. It shows 2 different wind speeds App and True. I just guessed they were right. I know they are close. I did not question that it needed the speed input from the paddle to calculate true wind. Wow I have a lot to learn. This stuff is getting real complicated. I should start over? I was going to use the existing hole for the speed paddle to mount the new thru-hull transducer for the Echo50s Garmin. Now I may need to keep that hole or my wind-gauge will not work for true wind? Maybe i should just buy the in-hull transducer? I may be in over my head. copy and past this link to see the units. Thanks again. http://i148.photobucket.com/albums/s31/LTGoshen/IMG_2637.jpg On Tue, Jan 14, 2014 at 8:22 AM, Rick Brass <rickbr...@earthlink.net> wrote: > First post snagged because it was too big. Forgot to delete the string of > previous posts. > > > > *From:* Rick Brass [mailto:rickbr...@earthlink.net] > *Sent:* Tuesday, January 14, 2014 8:17 AM > *To:* 'cnc-list@cnc-list.com' > *Subject:* RE: Stus-List Autohelm St4000 how it should work with the GPS > > > > Curtis; > > > > The elevator version of how the paddlewheel works is that a little magnet > causes pulses in the wire, and the instrument converts the frequency of the > pulses into speed through the water. I’m not sure that a ohm meter would > show me anything even if I knew which pair of pins to test across. > > > > As far as water temp goes, there is a thermister in the sensor that > changes resistance in response to temperature change, but it would probably > only show a very few ohms of resistance and might look like normal > continuity unless you have a very sensitive meter. > > > > If your wind instrument is not hooked up to a GPS to get Speed Over Ground > and heading information, then it uses the speed input from the speed log > and the apparent wind information from the masthead sensor to calculate the > true wind and the VMG information. There is an inherent error here in that > SOG and speed through the water are different due to the impacts of > current, but without boat speed information, it isn’t possible to know true > wind unless you are standing still. > > > > Rick Brass > > > > *From:* CnC-List > [mailto:cnc-list-boun...@cnc-list.com<cnc-list-boun...@cnc-list.com>] > *On Behalf Of *Curtis > *Sent:* Tuesday, January 14, 2014 7:31 AM > *To:* cnc-list@cnc-list.com > *Subject:* Re: Stus-List Autohelm St4000 how it should work with the GPS > > > > I worked with the paddle wheel last night ad was able to clean it. It now > spins freely but shows however it still has no activity on the ohms meter. > All that being said, how much does this speed help you anyway? I mean it > will tell me how fast the river is passing under my boat but not if I’m > making speed? The GPS tells me distance over the ground, I have been > sailing real good before and not making much distance over the ground. What > are your thoughts on this? I will hook it back up and try it tonight after > work. But if there is no activity on the meter It may have a bad wire or > something. > > _______________________________________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > CnC-List@cnc-list.com > > -- *At sea, I learned how little a person needs, not how much.- Robin Lee Graham*
_______________________________________________ This List is provided by the C&C Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
