MrWizard wrote:
The SHUNT can be in the positive wire
The shunt doesn't care
It's just usually easier to install it on the negative lead, because there is less wiring to contend with ( normally done at the battery where there are several wires connected to the positive post ) ( you don't have that concern inside the iota with only one positive wire going to the battery )
Just reverse the polarity of the signal wires from the way shown for the normal installation in the negative lead
As long as it shows plus amp flow when charging
And minus amp flow when discharging
You are good
For analog meters, this is true. It's also true for digital meters where the sensing is isolated from the meter's power supply (which includes all that use hall-effect current sensors, and some others). For many digital panel meters, however, one of the current sense lines is internally connected to the negative supply for the meter, so if the meter is powered by the 12V system for the RV and no external isolation is provided for the meter's power supply, the shut must be on the negative lead. Sometimes this information is rather buried in their description or documentation.
