Megger LCB2000/2 Guide De L'utilisateur page 35

Specifications
Supply Voltage Measurement
25-500V Intrinsic accuracy ±2% ±2 digits
Supply Frequency Measurement
d.c., 16-460Hz
Intrinsic accuracy ±0,1% ±1 digit
Loop Resistance Measurement
(to EN 61557-3)
Line/Earth Loop
Displayed Range: 0,01Ω to 3,00kΩ
Nominal Supply: 230V, 50Hz
EN61557
Operating Range: 0,25Ω to 3,00kΩ
Intrinsic accuracy:
0,01Ω-9,99Ω ±4% ±0,03Ω
10,0Ω-89,9Ω ±5% ±0,5Ω
90Ω-899Ω ±5% ±5Ω
900Ω-3,00Ω ±5% ±20Ω
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Line-Line (Phase/Phase) Loop Resistance
measurement (to EN 61557-3)
Displayed Range: 0,01Ω to 19,99Ω
Intrinsic accuracy: ±5% ±0,03Ω
Nominal Supply: 230V, 50Hz
EN61557
Operating Range: 0,25Ω to 19,99Ω
Prospective Fault Current
Prospective fault current = Nominal voltage
Measured Voltage
>150V
150V-300V
>300V
Prospective Fault Current is calculated from the
respective loop resistance. Ranges and accuracies are
therefore derived from the previous section.
Loop resistance
Nominal Voltage
110V
230V
400V