UT521 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.
Features of UT521 Series Digital Earth Testers
● 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 UT521 Series Digital Earth Testers
Specifications | Range | UT521 |
Earth resistance (Ω) | 0~20Ω | ±(2%+10) |
0~200Ω | ±(2%+3) | |
0~2000Ω | ±(2%+3) | |
0~40Ω | ||
0~400Ω | ||
0~4000Ω | ||
AC earth voltage (V) | 0~200V | ±(1%+4) |
0~400V | ||
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 | √ |
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 Characteristics | ||
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 | 8pcs | |
Standard carton measurement | 530mm x 300mm x 350mm (0.056 CBM per standard carton) | |
Standard carton gross weight | 19kg |
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