• RS-232 Interface Standard
• Wide Measurement Range: From 10μΩ resolution to 30MΩ full scale
• High Accuracy ±0.02% (most ranges)
• Auto/Manual Function

The XiTron XT560B Digital Milliohmmeter is a dedicated, fully automatic instrument that selects the optimal test current, from 100nA to 100mA DC to accurately measure resistances from 10μΩ to 33MΩ. The XT560B will auto-range between 9 ranges or can be manually set to a fixed range. The XT560B includes a set of Kelvin test clip leads for making four-terminal measurements. The XT560B is ideal for measuring wiring or cable resistances, windings of motors or generators, lamp filaments, cable splices, wire-to-terminal resistances, heating elements, contact resistance of breakers or switches, connector quality/resistance, fuse resistances, transformers, and grounding connections.

The XT560B makes 4-wire resistance measurements as shown in the figure below. The source HI and LO leads apply a known, internal current source to the unknown resistances. The sense HI and LO leads measure the voltage across the unknown resistance.