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Ammeter Theory of Operation
#21

David, the 120V water pump is a monster. I pull 160 amps DC when it starts. If the microwave or aux air pump is running, you could easily top out over 200 amps for a brief time.

Don't know what inverter you have, but mine puts out 120 amps charging the house batteries.

Translation 300 amp shunt = good.

Richard and Rhonda Entrekin
99 Newell, 512
Maverick Hybrid Toad
Inverness, FL (when we're home Cool )
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#22

Thank Richard - I figured 100 would be too small.

How did you figure out your amperage draws? Just curious.

David
2004 Newell #695
Series 60
Quad slide front entry
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#23

This is my choice,  it displays average leg voltage and current and KW on one screen, which is where I leave it.   There are several screens, each with different information.  such as L1-N voltage, L2-N voltage, L1-L2 voltage, amperage each leg, kw, kva, pf, watt hours consumed, THD and much more.

The CTs need to be changed to 100:5 rating and making sure the voltage conductors are fused.  The existing face plate is changed to one hole plus the thermostat.
   

Just different viewpoints !!  Some like a separate meter, some want different information.  I waned KW.

Gordon Jones
2000-45'-2slide-#567
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#24

I used a sophisticated amp meter that is corrected both for the galvanic attraction of the earth’s poles, and the direction the wind is blowing. Seriously i just looked at the inverter panel when the pump, microwave, or something else is operating. I have a magnum inverter with the shunt monitoring capability.

Richard and Rhonda Entrekin
99 Newell, 512
Maverick Hybrid Toad
Inverness, FL (when we're home Cool )
Reply
#25

I replaced my 120v water pump with a 12v Remco 55A Aquajet-ARV. It is 5.5 gpm and 65psi, $220 on Amazon. it produces plenty of water, the Headhunter toilet works fine, and best of all, it is dependable.

Steve Magown
Calhoun, LA
2001 Prevost H3 Vantare
formerly Newell #458
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