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1）If the Live and Neutral in the socket wiring is reversed or there is a fault with the
protective earth connection this is indicated : “LN√, LE×, NE×”
2）If there is a fault with the Neutral connection this is indicated: “LN×, LE√, NE×”
3）If the mains socket wiring is correct the display will show “LN√, LE √, NE√ ”
Accuracy Specifications
Earth Continuity
Pass Limit 0.2 ohms
Accuracy ±0.03 ohms
Test Current Resistance ≤2 ohms: ≥ 200mA
Test Voltage 5V DC
Insulation Resistance
CLASS 1: 1M ohms
CLASS 2: 2M ohms
Pass Limit
CORD: 2M ohms
Accuracy ±0.1M ohms
Test Voltage 500V
Test Current
500k:﹥1mA
1K: ﹤2 mA
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