Earthing or grounding of electrical equipment is essential to maintain safety, protecting lives, as well as prevent damage to equipment. The FT3151 Analog Earth Tester uses the AC phase differential system to measure earthing resistance, which assures that accurate measurements are unaffected by earth voltage and auxiliary earthing resistance. New innovate cord winders make clean up a breeze.
ANALOG EARTH TESTER FT3151 Features:
Earth Voltage 0~30V
AC potentiometer method, Three-electrode method/ two-electrode method (switchable)
Measuring frequency: 575 Hz/ 600 Hz
Three-electrode method: 15 mA rms or less
Two-electrode method: 3 mA rms or less
Open circuit voltage: 50 V AC rms or less