Megger MIT515 Insulation Resistance Tester

The Megger MIT515 insulation resistance tester is a 5kV unit with a resistance measurement up to 10TΩ. The MIT515 is a smaller and lighter than previous model yet offers advanced features and rapid charge capability.

A key productivity feature is the ability to take measurements when connected to line power/mains with a dead battery. Intelligent battery charging ensures the optimum charge rate as a function of battery level, resulting in minimum charge times.

The rugged, unique dual case design provides the ultimate protection for a portable instrument and a clip-on lead pouch ensures that leads remain with the instrument at all times. The case lid is removable for improved terminal access. IP rating is IP65 with the case closed preventing water/dust ingress. High reliability and safety are built in; all models are safety rated to CATIV 600V and are double insulated.

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Feature of Megger MIT515 Insulation Resistance Tester

  • Industry best guard terminal accuracy
  • Compact and lightweight
  • PI, DAR, DD, SV and ramp test
  • Dual case design provides additional user protection
  • Lithium-ion battery: extended capacity, rapid charge
  • Advanced memory with time/date stamp
  • CATIV 600V safety rating on all terminals

Specification of Megger MIT515 Insulation Resistance Tester

Voltage input range:                   85-265 V rms, 50/60 Hz, 60 VA Battery:     11.1 V, 5.2 A hour, meets IEC

62133:2003

Battery life

MIT515, MIT525:                        Typical capacity 6 hours continuous at 5 kV with a 100 MΩ load

MIT1025:                                    Typical capacity 4.5 hours continuous at 10 kV with a 100 MΩ load

Battery charge time:                   2.5 hours from deep discharge, 2 hours from normal discharge

MIT1525:                                    Typical capacity 6 hours continuous at 15 kV with a 100 MΩ load

30 min. quick charge: 1-hour operation at 5 kV, 100 MΩ

Test voltages

MIT515, MIT525:                        250 V, 500 V, 1000 V, 2500 V,

5000 V

MIT1025:                                    500 V, 1000 V, 2500 V, 5000 V,

10000 V

User-defined test voltage:

MIT515, MIT525                         100 V to 1 kV in 10 V steps, 1 kV to 5 kV in 25 V steps,

MIT1525:                                    1000 V, 2500 V, 5000 V,

10000 V, 15000 V

MIT1025                                     5 kV to 10 kV in 25 V steps

MIT1525                                     10 kV to 15 kV in 25 V steps

Accuracy                                     (23 °C):

MIT1525                                     < xxx ms/uF to discharge from 15000 V to 50 V

Capacitance ranges 10 nF to 25 μF (dependent on

(above 500 V):                            measurement voltage) Capacitance accuracy (23 °C):     ±10% ±5 nF

Voltage output accuracy             +4%, -0%, ±10 V nominal test

voltage (>200 V, 0 °C to 30 °C):

at 1 GΩ

Current measurement range:      0.01 nA to 6 mA Current measurement

accuracy (23 °C):                         ±5% ±0.2 nA at all voltages Interference (noise) rejection:

MIT515, MIT525                         1 mA per 250 V up to a maximum of 3 mA

MIT1025                                     1 mA per 600 V up a maximum of 3 mA

MIT1525                                     4 mA

Voltmeter range:                        30 V to 660 V ac or dc, 50/60 Hz

Voltmeter accuracy:                   ±3%, ±3 V

Timer range:                               Up to 99 minutes, 15-second minimum setting

Memory capacity:                       5½ hours continuous logging every 5 s. or 33 logged PI tests

or 350 logged IR tests MIT1525 11 hours continuous logging every 5 s.

Test regimes:

MIT515                                       IR, IR(t), DAR, PI

MIT525, MIT1025                       IR, IR(t), DAR, PI, SV, DD, ramp test

Interface:                                   USB type B (device)

Real time output:                       USB, 1 reading/second (voltage, current and resistance)

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