[Public-list] voltmeter switch

George Dinwiddie gdinwiddie at alberg30.org
Mon May 2 16:16:58 PDT 2005


Gordon Laco wrote:
> One thing I did try to do was install a switch and voltmeter to indicate
> battery state.  I put in a three position switch that is off in the middle
> and on port and starboard.  What I want is to be able to throw it either way
> to see the voltage of Battery #1 or #2... The way it is now it indicates
> both batteries either way. Can anyone offer me a diagram to fix this?  Funny
> thing, I am fairly fearless with rigging or structural issues but wiring
> stumps me.

I prefer having the voltmeter switch separate from the battery switch, 
so I can measure either one without changing the main switch.  It's best 
to measure the battery voltage after it's been resting a day, anyway. 
Of course, if you have your main switch set to Both, then you'll be 
measuring both batteries, anyway.

It's hard to draw this with ASCII characters, but use a fixed font like 
courier to view it:


       battery 1 ------------o
                              /
                             o--------[ meter ]--------- Ground

       battery 2 ------------o

                         SPDT switch

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   When I remember bygone days                         George Dinwiddie
   I think how evening follows morn;            gdinwiddie at alberg30.org
   So many I loved were not yet dead,           http://www.Alberg30.org
   So many I love were not yet born.
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