UNI-T - DIGITAL EARTH TESTER (UT521)

Product Name:Digital Earth Tester Brand:UNI-T Model:UT521 1.The UT520 series grounding resistance tester features backlight and battery low voltage display, data retention and storage, and automatic shutdown power saving. It can be used for precise three-wire measurement or for simple two-wire measurement. 2.It can be used to measure the grounding resistance of various power systems, electrical equipment, lightning protection equipment and other grounding systems, and also to ground voltage measurement. Suitable for testing of grounding systems for smelting, communication, manufacturing, petroleum, defense, electric power, chemical, construction, etc. Specifications Range UT521 Earth resistance (?) 0~20? ±(2%+10) 0~200? ±(2%+3) 0~2000? ±(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 "...?" ? Over-range display Display "OL" ? Simple 2-wire testing ? Precise 3-wire testing ? Actual measurements may vary and all specifications are subject to the actual product.