Steve -According to my wire table, standard annealed copper wire, 6 AWG, has a resistance of 0.3951 ohms per 1000 feet at 68 degrees F. So... the 20 inch length in the tractor should have a nominal resistance of 0.0006585 ohms. I don't know if they count on some resistance from the terminals on top of that. In any event, it's not a lot! So good connections make a huge difference.
I'm not sure how the meter is calibrated (how many millivolts = full scale.) - Tom Coate E-20 Leesburg, VA At 08:53 PM 5/31/2002 -0400, SWS wrote:
Anyone know what the power use shunt resistor value is? Or else the full scale value of the power use meter in terms of Amps? E12S if it makes any difference. SteveS E12S