The 5070 DuctorCal is a portable calibration instrument suitable for calibrating high current Ductor Testers and Micro-Ohm meters.
It contains 5 sets of high current rating standard resistors which simulate the resistance being measured.
It has full 4 terminal capabilities with extra large terminals for the current connection.
Gold plated terminals are used throughout to reduce contact resistance and thermal emfs (for dc based instruments).
It has a substantial maximum continuous current rating but is also suitable for much higher transient/pulse test currents.