[PSUBS-MAILIST] Digital Depth gauge with secondary display to passengers

[Alan via Personal_Submersibles]

Hi Lasse,
There are smarter people than me on this site with regard to this stuff, but in case
they don't post, here are my thoughts.
I had a look at that meter on a few different sites & couldn't find any instructions
with it. Maybe ask the seller if any pdf on the gauge exists. I have bought a few 
Chinese products recently that have either no instructions or very poor instructions.
There are a number of cheap panel meters that you could calibrate to the gauges 
output, & on a quick search I saw a programable module that would work between
the gauge & panel meter.  There may be problems running a number of panel
meters simultaneously,  with regard to voltage drop with them sharing the same
output source & voltage drop over long wire runs. It may be that the panel meters
need to be calibrated when they are set up in the sub. 
There are loads of those type of sensors on Digikey & you may get some set up 
answers off their pdfs.
Cheers, Alan

Sent from my iPad

> On 29/09/2015, at 10:42 am, Lasse Schmidt Westrén via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> Hey Guys,
> 
> http://www.ebay.com/itm/G3-8-Digital-display-pressure-transmitter-4-20mADC-sensor-stainless-0-40bar-/331562111499?tfrom=231569857640&tpos=top&ttype=price&talgo=undefined
> 
> I found this cool type of gauge that shows pressure in a simple way, and has the ability to send the data to a secondary display.
> I can´t figure out what kind of secondary displays to use, I´d like to put a display or two in the passenger compartment for my passengers to see the depth, and maybe a display all the way in the front of the sub.  Anyone up with a solution?
> 
> Cheers, Lasse
> 
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