MIT2500 High Voltage Handheld Insulation and Continuity Tester
The MIT2500 high voltage handheld insulation and continuity tester has been designed for motor and cable testing, specialist applications, and electrical testing applications, where operation voltages exceed 1000 V and higher insulation test voltages are needed.
The MIT2500 offers both fixed range voltages of 50 V, 100V, 250 V, 500 V, 1000 V, and 2500 V, as well as a variable range that allows any voltage between 50 V and 2500 V to be 'dialled in'. This is supported by the new test voltage feedback control, which maintains the output test voltage to within 2 % of the selected range, even when under test. The feedback-controlled insulation test voltage is now accurate to +2 % -0 % compared to the original +20 %, providing a more accurate test voltage without the risk of overvoltage damage to circuits. A variable range allows the exact test voltage to be selected from 50 V to 999 V in 1 V steps, (1 kV to 2.5 kV in 10 V steps) providing 1100 test voltage options.
The MIT2500 uses a redesigned case, back-stand, and six cell battery compartment, as well as incorporating a guard terminal to reduce surface leakage currents that reduce accuracy at higher voltages. All instruments are over-molded for increased protection and have an IP54 weatherproof rating.
Insulation
Insulation accuracy
50 Volts: 10 GΩ ± 2% ±2 digits ±4.0% per GΩ
100 Volts: 20 GΩ ± 2% ±2 digits ±2.0% per GΩ
250 Volts: 50 GΩ ± 2% ±2 digits ±0.8% per GΩ
500 Volts: 100 GΩ ± 2% ±2 digits ±0.4% per GΩ
1000 Volts: 200 GΩ ± 2% ±2 digits ±0.2% per GΩ
2500 Volts: 200 GΩ ± 2% ±2 digits ±0.2% per GΩ
50 V, ± 2.0% ±2d, 100 kΩ - 900 kΩ ±10.5%
100V, ± 2.0% ±2d, 100 kΩ - 900 kΩ ±10.3%
250V, ± 2.0% ±2d, 100 kΩ - 900 kΩ ±10.3%
500V, ± 2.0% ±2d, 100 kΩ - 900 kΩ ±10.3%
1000V, ± 2.0% ±2d, 100 kΩ - 900 kΩ ±11.5%
Guard terminal performance: <5% error at 500 kΩ parallel circuit resistance with 100 MΩ load
Display range: Analogue: 1 GΩ full scale
Resolution: 0.1 kΩ
Short circuit/charge current: 2 mA +0% -50% to EN 61557-2 (2007) (except 2500 V)
Terminal voltage accuracy: -0% +2% ±2 V
Test current: 1 mA at min. pass value of insulation to a maximum of 2 mA max
Operation: EN61557 : 0.10 MΩ to 1.0 GΩ
Max. capacitive load: 15 nF on tests above 1000 V (only available on MIT2500)
Leakage current display: 10% ±3 digits
Voltage: ±3% ±2 digits ±0.5% of rated voltage
Timer control: Countdown timer 60 second (adjustable to 10 minutes)
Continuity
Continuity measurement: 0.01 Ω to 1 MΩ (0 to 1000 kΩ on analogue scale)
Continuity accuracy:
±3% ±2 digits (0 to 100 Ω )
±5% ±2 digits (100 Ω - 500 kΩ)
Service Error: BS EN 61557-4 (2007) -
±2.0%, 0.1 Ω - 2 Ω ±6.8%
Open circuit voltage: 5 V ± 1 V
Test current: 200 mA (–0 mA +20 mA) (0.01 Ω to 4 Ω)
Polarity: Single polarity (Default) / Dual polarity (configurable on setup).
Lead resistance: Null up to 10 Ω
Voltage range
Voltage range:
DC: 0 to 600 V
AC: 10 mV to 600 V TRMS sinusoidal (15 Hz to 400 Hz)
Unspecified: 0 – 10 mV (15 to 400 Hz)
Volt range accuracy:
AC: ±2% ±2 digits
Service Error: BS EN 61557-1 (2007) -
±2.0% ±2d, 0 V 300 V AC/DC
±5.1%
Waveform:
Non-sinusoidal:
±3% ±2 digits >100 mV to 600 V
TRMS ±8% ±2 digits 10 mV to 100
mV TRMS
Default voltmeter: ±0.5% ±1 digit (100 Hz to 400 Hz) unspecified
Frequency
Frequency measurement range: 15 Hz - 400 Hz
Frequency measurement accuracy: ±0.5% ±1 digits
Capacitance measurement
Capacitance range: 0.1 nF to 10 μF
Accuracy: ±5.0% ± 2 digits ( 1 nF - 10 μF)
