Hum... i thought that the power supply set to 10 amps not 10V. In that case, you couldn't measure voltage at load cause if the load changes, the voltage changes. It says that the PSU is set to deliver a constant 10 amps not 10V... that's why I would place sense circuit in series with the load (assuming that the sense circuit impedance is relay ***** low)... Maybe I'm wrong to... it's just i don't understand how you control a current flow with a voltage at an unknown load...