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)

MIT2500_datasheet


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