... grounding fault locatingAutomatic depth and current detectionHistorical curve record,show the ... current measurement frequencies:500Hz, 1kHz, 8kHzØ Sensor frequencies: 1kHz, 8kHzØ Grounding fault locate frequencies: 8kHz compound frequency Pipe detection ... detection.Ø Narrow Method. Ø Null Method.Cable Identification mode Ø Clamp intelligent identificationØ Mini sensor identification.Ø Clamp current ...