[PSUBS-MAILIST] Depth Sounder

Sun Mar 28 11:32:05 EDT 2021

Hi guys. I have done just what Alan suggests. I bought a new transducer that shoots through the hull. I epoxied it to a heavy piece of fibreglass.  
The transducers are potted, but when taking one apart I discovered there is little protection on the bottom side of the transducer. It varies from brand to brand I think
Hank

Sent from my iPhone

> On Mar 26, 2021, at 6:33 AM, Steve McQueen via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> 
> Makes sense. 
> Steve
> 
>> On Thu, Mar 25, 2021 at 8:52 PM Cliff Redus via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>> It is a legacy issue with me.  I have experience with NEMA 0183, interfacing with PLC and all wiring has been speced with NEMA 0183/RS232.  I may revisit NEMA 0183 vs 2000 at some point.  
>> 
>> Cliff
>> 
>> On Thursday, March 25, 2021, 07:18:51 PM CDT, Steve McQueen via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>> 
>> 
>> NEMA 2000 is the latest protocol. Is there a reason you would not consider it?
>> Steve
>> 
>> On Thu, Mar 25, 2021, 7:21 PM Cliff Redus via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>> Jon on the R300, I use the Airmar DST800 DST800 Smart™ Sensor | AIRMAR I interface it with my PLC via RS232 and parse the NEMA 0183 ASCII strings to get altitude, speed and temperature.  I have been happy with this transponder for the most part.  What I don't like about it is the 70m depth limit.  On many occasions when doing a surface transit I have been in deeper water than this and the meter pegs out.  
>> 
>> I founds interfacing with NEMA 0183 devices straightforward.
>> 
>> The R800 I am designing has a design depth of 800 ft.  As such I need a deeper sounder.  Because I like the NEMA 0183 devices and the fact I am going to use a RS232 channel on the new boat for altitude, I have speced a new transponder. It is the CruzPro ATU120BT CruzPro ATU120BT: 300 Mt plastic feed-through transducer (marinepanservice.com)
>> 
>> CruzPro ATU120BT: 300 Mt plastic feed-through transducer
>> CruzPro ATU120BT plastic active feed-through transducer, with temperature, depth 300 Mt, power 320 watt RMS, DSP...
>> This gets me 300m or 984 ft so more than enough for new boat.  The cost for the unit is $260.  While these transponders are for surface boats, I am hoping that it is solid and can withstand the depth.  At some point I plan on doing some depth test in my test chamber to see if it will withstand the pressure.  I found some nice altitude sensors for ROVs but I found that the prices are a magnitude higher.
>> 
>> I think Hank has been happy with his altitude sounder.  I don't remember what he using but you might want to send him and note and see what he used on Gamma and the E3000.
>> 
>> Cliff
>> 
>> 
>> 
>> 
>> On Thursday, March 25, 2021, 09:06:37 AM CDT, Jon Wallace via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>> 
>> 
>> Cliff, what manufacturer/model sounder are you using for altitude?  Do you have it interfaced with your computer or is it a separate unit?  I'm looking at NMEA sounders which are relatively easy to interface with microprocessors but are expensive.  Analog depth sounding transducers are much cheaper but I don't know how they present their information.
>> 
>> Jon
>> _______________________________________________
>> Personal_Submersibles mailing list
>> Personal_Submersibles at psubs.org
>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
>> _______________________________________________
>> Personal_Submersibles mailing list
>> Personal_Submersibles at psubs.org
>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
>> _______________________________________________
>> Personal_Submersibles mailing list
>> Personal_Submersibles at psubs.org
>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
>> _______________________________________________
>> Personal_Submersibles mailing list
>> Personal_Submersibles at psubs.org
>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
> _______________________________________________
> Personal_Submersibles mailing list
> Personal_Submersibles at psubs.org
> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.whoweb.com/pipermail/personal_submersibles/attachments/20210328/1e5f3ae8/attachment-0001.html>