<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Hi Steve,</div><div><br></div><div>I find a laptop hard to imagine in a 250 just due to space constraints. I think the first thing I'd look at is whether one could interface the sonar to a tablet instead. Note that an iPad, for instance, has a 12 hour battery so you would save space, amps, and money by getting rid of the DC-AC converter.</div><div><br></div><div>Best,</div><div><br></div><div>Alec<br><br><div><br></div></div><div><br>On Jan 31, 2014, at 8:19 PM, Steve McQueen <<a href="mailto:psub101@indy.rr.com">psub101@indy.rr.com</a>> wrote:<br><br></div><blockquote type="cite"><div><div dir="ltr"><div><div><div><div><div><div><div>All, thought I would share an
exercise I am noodling through. As an off shoot to developing my K-250
electrical layout I am looking at what it would take to add (later) a
sonar system based on a 12V DC system. Thought I could get some
feedback as well as provide an "example" for others considering a
similar scenario.<br>
<br></div>On the Psubs site under Submitter/Steve McQueen/K-250 Sonar Electrical you can find my initial version of a wiring diagram.
In this example I used easily found components as a base reference.<br><br></div>My current self inflicted design constraints:<br></div>
</div>Implementation of the Teledyne BlueView M-900 2D imaging sonar <br></div>Utilization of laptop for viewing (vs. separate processor with remote monitor)<br>Dedicated 12V DC sourced (separate from main 12V DC bank)<br>
</div>4 hours of run time<br><br></div>I am sure my initial design can
be made more efficient. The initial design has 2 parallel 12V/150 Ah
batteries which are larger and heavier than I'd like (22x4x11 inches or
560x110x280 mm and 89.3 lbs or 40.5 kg). This design gives 3.9 hrs of
run time <br>
<br>For me the design goal is to reduce battery footprint (size/weight)<br><br>Any comments? Anyone have sonar based on 12V DC?<div class=""><div id=":126" class="" tabindex="0"><img class="" src="https://mail.google.com/mail/u/0/images/cleardot.gif"></div>
</div></div>
</div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>Personal_Submersibles mailing list</span><br><span><a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a></span><br><span><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a></span><br></div></blockquote></body></html>