Megger MIT2500 - Technical Specifications; Insulation and Continuity Specifications

www.megger.comMIT400/2
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14. Technical Specifications
All quoted accuracies are at +20 °C.
Insulation:
Test voltage Nominal:
MIT400/2 250 V, 500 V, 1000 V
MIT410/2, 420/2,430/2 50 V, 100 V, 250 V, 500 V, 1000 V
Insulation accuracy 50 Volts. 10 GW ± 2% ± 2 digits ± 4.0% per GW
100 Volts. 20 GW ± 2% ± 2 digits ± 2.0% per GW
250 Volts. 50 GW ± 2% ± 2 digits ± 0.8% per GW
500 Volts. 100 GW ± 2% ± 2 digits ± 0.4% per GW
1000 Volts 200 GW ± 2% ± 2 digits ± 0.2% per GW
Service Error: BS EN 61557-2 (2007)
50V, ±2.0% ±2d, 100kΩ - 900kΩ ± 10.5%
100V, ±2.0% ±2d, 100kΩ - 900kΩ ± 10.3%
250V, ±2.0% ±2d, 100kΩ - 900kΩ ± 10.3%
500V, ±2.0% ±2d, 100kΩ - 900kΩ ± 10.3%
1000V, ±2.0% ±2d, 100kΩ - 900kΩ ± 11.5%
Display range Analogue:
1 GW full scale
Resolution 0.1 kW
Short circuit/charge current 2 mA +0% -50% to
EN 61557-2 (2007) (except MIT2500: 1 mA into 2.5 MW)
Open circuit voltage insulation -0% +2% ± 2V
Test current 1 mA at min. pass value of insulation to a maximum of 2 mA max.
Leakage 10% ± 3 digits
Voltage 3% ± 3 digits ± 0.5% of rated voltage
Timer control 60 second countdown timer
Note Above specifications only apply when high quality silicone leads are being used.
Continuity:
Continuity measurement 0.01 W to 999 kW (0 to 1000 kW on analogue scale)
Continuity accuracy ± 3% ± 2 digits (0 to 100 W )
±5% ±2 digits (>100 W - 500 kW)
(>500 kW - 1 MW unspecified)
Service Error: BS EN 61557-4 (2007) - ±2.0%, 0.1Ω - 2Ω ± 6.8%
Open circuit voltage 5 V ± 1 V
Test current 200 mA (–0 mA +20 mA) (0.01 W to 4 W)
Polarity Single polarity (Default) / Dual polarity (configurable on setup).
Lead resistance Null up to 9.00 W
Voltage:
Voltage range AC: 10 mV to 600 V TRMS sinusoidal (15 Hz to 400 Hz)
DC: 0 to 600 V
Voltage range accuracy AC: ±2% ±1 digit
DC: ±2% ±2 digit
Service Error: BS EN 61557-1 (2007) - ±2.0% ±2d, 0V - 300Vac/dc ± 5.1%
Waveform Unspecified range: 0 – 10 mV (15 to 400 Hz)
For non-sinusoidal waveforms additional specifications apply
Non-sinusoidal waveforms: ±3% ± 2 digits >100 mV to 600 V TRMS
±8% ± 2 digits 10 mV to 100 mV TRMS