RE: [PSUBS-MAILIST] depth gauges

["Jay K. Jeffries" <bottomgun@mindspring.com>]

Jon,
Will have to look when I go into work Monday at an electronic pressure gage that I recently purchased at a price below what you quoted I believe.  Units of display are programmed from the gage face but don't remember if it will do FSW (I know it will do FFW as I programmed them for this).
R/Jay

-----Original Message-----
From: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] On Behalf Of Jon Wallace
Sent: Friday, November 13, 2009 6:18 PM
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] depth gauges


Transducers for $125.00 in both current and voltage units.
http://www.gaugestore.com/products.asp?dept=1652

I don't think these kind of transducers require a housing, do they?  
Weld a 1/4 or 1/8 NPT coupling as a thru-hull and thread it in.  You could even install a shutoff between the sensor and the thru-hull to stop the water if the unit failed.

I also don't think a custom pc board is required unless there are lots of parts involved.  I was able to build both a small preamp and amp for the hydrophone projects using Radio Shack project pc boards (point to point?).  It can get messy, but with a bit of planning you can actually get alot of components on it.

I'm happy to follow up on dealer agreements if you have a suggested supplier.  However, in most cases it's going to make more sense to just do a bulk order and try to strike a price-reduction with the supplier.

Jon




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