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Prospective Short-circuit Current (PSC)
Prospective Short circuit current = Nominal Voltage / Loop Resistance
Accuracy is therefore derived from the loop test.
1 A - 199 A 1 A resolution
0.02 kA - 1.99 kA 10 A resolution
2.0 kA - 19.9 kA 100 A resolution
Continuity (to EN 61557-4)
Ohms 0.01 Ω - 99.9 Ω (±2% ±2 digits)
100 Ω - 99.9 kΩ (±5% ±2 digits)
EN 61557 Operating Range 0.10 Ω to 99.9 kΩ
Buzzer Operates continuously at less than selected limit .
Selectable limits of 2 Ω, 5 Ω, 10 Ω, 20 Ω, 50 Ω, 100 Ω
Open circuit voltage 4 - 5 V d.c.
Test current >200 mA at 2 Ω
Test Lead resistance zeroing Up to 9.99 Ω (zero uses test button)
RCD ranges (to EN-61557-6)
Supply 100 V - 270 V 45Hz to 65Hz
Ranges 1000 mA, 500 mA, 300 mA, 100 mA, 30 mA, 10 mA
1/2I 1/2 times the selected current
I One times selected current.
5I Five times I current.
I trip A ramp test that displays actual trip current .
DC sensitive A DC test current at I current.
Current accuracy 1/2I -8% to -2%
I +2% to +8%
5I +2% to +8%
Intrinsic Accuracy of ramp test current ±3%
Trip time
accuracy ±1% ±1 ms
Touch (Fault) Voltage
Displayed range 0 V - 100 V
Error +5% to +15%
±0.5V
Remote Probe MFT1502 only (Optional on MFT1501)
Torch feature 5 mm White LED
1500 mcd
Safety CLASS 1 LED to IEC 60825:2001
Interchangeable tips
Lengths 30 mm GS38
112 mm GS38
Battery 9 V PP3
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