The Model 2620 measures leakage current shunted to ground caused by insulation faults. It enables the operator to locate failures when they occur, or anticipate them before they occur, without shutting down equipment or spending hours troubleshooting. It is designed specifically for locating low current faults on high current loads. The detector is a sensitive AC current transformer capable of measuring differential or leakage current as low as 500µA, and may be used to measure current up to 400A continuous. The Model 2620 provides two output ranges: 1mV/mAa c or 1mV/Aac. The output leads are terminated with standard 4mm banana plugs capable of interfacing with any standard multimeter. The use of a digital multimeter with analog bargraph is recommended; Digital to provide accurate readings, and an analog bargraph to track trends. The Model 2620 measures leakage currents on single or multi-phase systems. Currents measured may be in or out of phase, balanced or unbalanced. Applications: Preventive maintenance, Equipment troubleshooting on electrical distribution systems, High accuracy low-current measurements, Measure fault currents on three-phase, three-wire systems. current range: 500µA to 4A, 500mA to 400A. Output signal: 1mV/mA (4V max), 1mV/A (400mV max). Accuracy: 500µA to 10mA, 10mA to 100mA, 100mA to 4A., 0.5 percent of Reading +/- 0.5mV, 0.5 percent of Reading +/- 0.5mV. 500mA to 10A, 10A to 100A, 100A to 400A. 0.5 percent of Reading +/- 0.5mV, 0.35 percent of Reading +/- 0.5mV, 0.35 percent of Reading +/- 1mV. Phase Shift: 10mA to 100mA, <15 degree. 100mA to 4A <10 degree. 10A to 100A <1 degree. 100A to 400A <1 degree. Frequency range: 48 to 1000Hz. Output termination 5 ft (1.5m) Lead with 4mm safety banana plugs. Jaw Opening: 4.4" (112mm). Maximum conductor: Size 4.4" (112mm). Operating temperature: -14 degree to 131 degree F (-10 degree to 55 degree C); 0 to 85 percent RH (non-condensing). Measures 6-7/8" width by 11-7/32" height by 1-49/64" depth.