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Safety Tester - discontinued
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.
Features
1. Over range indication, test lead connection alarm
2. TEST button for fast capture of measurement values
3. 20-group data storage/recall
4. Backlight
5. Data hold
6. Auto power off/battery check
7. Earth voltage measurement
| Specifications | Range | Best Accuracy | |
| Model | MO00640235 | ||
| Insulation Resistance | Test Voltage | 250V/500V | √ |
| Class I PASS Value | 1MΩ | ±0.1MΩ | |
| Class II PASS Value | 2MΩ | ±0.1MΩ | |
| Cord PASS Value | 2MΩ | ±0.1MΩ | |
| Test Current | (R=500kΩ): >1mA | √ | |
| Short-Circuit Current | <3mA | √ | |
| Ground Resistance | Class I PASS Value | 0.2Ω | ±0.03Ω |
| Cord PASS Value | 0.2Ω | ±0.03Ω | |
| Test Current | >200mA (R<2Ω) | √ | |
| Measuring Voltage(DC) | 5V | √ | |
| Cord Test | Correct Wiring | √ Cord Correct | √ |
|
Open Circuit, Short Circuit, Reverse Polarity |
X Cord Fault | √ | |
| Out with Testing | Test Voltage | AC220V | ±15% |
| Normal | Show "LN√, LE√, NE√” | √ | |
| Off Ground |
Show“ LN√, LE X, NE X ” |
√ | |
| Out Zero Line |
Show “ LN×, LE√, NE X ” |
√ | |
| Features | |||
| Display Count | 2000 | ||
| Auto Power Off | √ | ||
| Low Battery Indication | √ | ||
| General Characteristics | |||
| Power | 1.5V batteries (LR14) x6 | ||
| LCD Size | 136mm X 47mm | ||
| Product Color | Red and grey | ||
| Product Net Weight | 970g | ||
| Product Size | 210mm X 178mm X 90mm | ||
| Standard Accessories | Batteries, test cord, alligator clip | ||
| Standard Individual Packing | Gift box, English manual, tool box | ||
| Standard Quantity Per Carton | 4pcs | ||
| Standard Carton Measurement | 505×345×345mm (0.06 CBM per standard carton) | ||
| Standard Carton Gross Weight | 13.2kg | ||