UT520 series can perform precise 3-wire and simple 2-wire earth resistance measurement for power and electrical systems, lightning protection equipment, and ground system of all electrical equipment. This series is UNI-T’s introductory earth resistance tester with high economic value. Its light weight design is convenient for field work. Specifications Range UT521 Earth resistance (Ω) 0~20Ω ±(2% 10) 0~200Ω ±(2% 3) 0~2000Ω ±(2% 3) AC earth voltage (V) 0~200V ±(1% 4) Frequency: 50Hz/60Hz √ Features Display count 2000 Manual range √ Auto power off Around 10 minutes √ Low battery indication √ Data hold √ Data storage 20 LCD backlight √ Full icon display √ Double insulation protection √ Poor contact display "...Ω" √ Over-range display Display "OL" √ Simple 2-wire testing √ Precise 3-wire testing √ General Characterisitics Power 1.5V battery (LR6) x 6 Display 70.6mm x 34mm Product color Red and grey Product net weight 560g Product size 160mm x 100mm x 70.5mm Standard accessories Batteries, simple test leads with alligator clips, standard test leads with alligator clips, earth spike, gallus Standard individual packing Gift box, carrying bag, English manual Standard quantity per carton Standard carton measurement 530mm x 300mm x 350mm (0.056 CBM per standard carton) Standard carton gross weight
