TM500 [RE-wrenches]

[Jeff Wongstrom]

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Wrenches,

Anyone have problems with the trace meter 500 combined with a C-40 digital
display in a 48v system?

When the TM500 is connected the C-40 "locks up" giving erratic current
readings and cutting solar input.  When the solar input is disconnected the
TM500 works fine with inverter loads and the C-40 meter goes quiet at zero
amps.  

I have been advised that this is caused by noise from the 48v shunt board
and that capacitors and ferrite beads at the C-40 may solve the problem, but
in this case these measures did not work.

Anyone come across this problem and another possible solution?

Jeff Wongstrom
Thirsty Lake Solar

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