This is a test of the melexis current sensor on a 1" x 1/4" x LENGTH bus bar. I got the stupid thing reversed on accident, so the voltage drops as current goes up, but it's the same idea. The range is good for over 1000 amps, since the range of the current sensor is from 0.5v up to 4.5v. 1000 amps corresponds to 0.83v.