.Measurement range:Earth resistance:10/100/1000ΩEarth voltage:30V AC(5KΩ/V approx)

.AccuracyEarth resistance:Within±5% of full scaleEarth voltage: Within±5% of full scale

.Measurement systemEarth resistance by constant current inverter 800Hz approx 2mAEarth voltage by rectifier type 5KΩ/V approx.40~500Hz

.Withstand voltage1500V AC for one minute between electrical circuit and housing case

.Self-check facilityLead wire connection to C and P terminals and proper auxiliary earth resistance can be checked by pressing″BATT.CHECK″button ″OK″lamp is illuminated.

earth resistance tester