Thanks for that lads, i work at calibration and the other day a pt100 sensor could not be removed from a temperature probe so i simulated 4-20 mA across the other two cables terminated in the probe, would i have done harm if i had sourced the current instead of simulating ??
When using a signal generator to simulate a measured variable what is the difference in injecting mA using a source function and injecting mA using a simulation function ??
