About this product
UT520 Series Digital Earth Testers
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 lightweight design is convenient for fieldwork.
Models in UT520 Series: UT521, UT522
Features of UT520 Series Digital Earth Testers
Certificates: CE, UKCA
● Manual range
● Low battery indication
● Data hold
● LCD backlight/auto power off
● Full icon display
● Double insulation protection
● Poor contact display: “…Ω”
● Over-range display: Display “OL”
● Simple 2-wire testing
● Precise 3-wire testing
Specifications of UT520 Series Digital Earth Testers
Technical information
Manufacturer
UNI-T
Specifications
Range
Earth resistance (Ω)
0~20Ω
AC earth voltage (V)
0~200V
Frequency: 50Hz/60Hz
√
Display count
2000
Manual range
√
Auto power off
Around 10 minutes
Data hold
√
Data storage
20
LCD backlight
√
Low battery indication
√
Full icon display
√
Double insulation protection
√
Poor contact display
“…Ω”