Heavy current pours into testing system's calibration equipment into

The utility model discloses a heavy current pours into testing system's calibration equipment into, including DC power supply, a circuit unit, the 2nd circuit unit and supervisory equipment, connecting wire between the 2nd circuit unit and the circuit unit includes power cord, power return wire, analog signal return wire and analog signal output line, a circuit unit includes slide rheostat and comparator, utilize slide rheostat can adjust the analog voltage value that the 2nd circuit unit exported, the own characteristic of utilizing the comparator is when the connecting wire between the 2nd circuit unit and the circuit unit injects interference in various degree into for the different analog voltage value of the 2nd circuit unit output, the analog voltage value of the 2nd circuit unit ofsupervisory equipment control output. The utility model provides a heavy current pours into testing system's calibration equipment into's cost is lower, can carry out the check -up to two kinds of coupled modess of common mod