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Megger MIT1025 10 kV Diagnostic Insulation Resistance Tester

Megger MIT1025 10 kV Diagnostic Insulation Resistance Tester

Brand
Megger
Model number
MIT1025

10 kV diagnostic insulation tester to 20 TΩ with IR, DAR, PI, DD, step voltage and ramp tests, PI Predictor, time-stamped memory and USB download; mains or Li-ion battery, CAT IV 600 V.

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Key features

  • Insulation resistance up to 20 TΩ at 10 kV
  • Full suite of test modes: IR, timed IR, DAR, PI, DD, SV and ramp test
  • PI predictor function (PIp): predicts the 10-minute PI, starting as early as 3 minutes into the test
  • 3 mA short circuit current and 3 mA noise rejection
  • Advanced memory with recall to screen and real time clock for time / date stamped results
  • Insulation temperature (measured separately) can be saved with each result
  • USB download to PowerDB and CertSuite Asset
  • Dedicated voltmeter function (30 V to 660 V)
  • Dual-case design: tough outer case and inner fire retardant case, IP65 with the lid closed
  • Operates from battery or AC mains supply
  • Rapid charge Li-ion battery: more than 60 minutes of testing after a 30-minute charge
  • Large backlit display with digital and analogue readings, two rotary switches
  • Graphical quick start guide inside the lid
  • Locking HV insulated plugs and non-removable test clips
  • Safety rated CAT IV 600 V to 3000 m

Specifications

Insulation
Test voltages500 V, 1000 V, 2500 V, 5000 V, 10000 V and user defined
Accuracy (23 °C) from 1 MΩ to±5%: 2 TΩ at 10 kV, 1 TΩ at 5000 V, 500 GΩ at 2500 V, 200 GΩ at 1000 V, 100 GΩ at 500 V; ±20%: 20 TΩ at 10 kV, 10 TΩ at 5000 V, 5 TΩ at 2500 V, 2 TΩ at 1000 V, 1 TΩ at 500 V
Test modesIR, IR(t), DAR, PI, SV, DD, Ramp test
Interference (noise rejection)3 mA from 960 V to 10 kV
Short circuit / charge current3 mA
Test voltage accuracy+4%, -0%, ±10 V nominal test voltage at 1 GΩ load (0 °C to 30 °C)
Display rangeAnalogue 100 kΩ to 10 TΩ; digital 10 kΩ to 20 TΩ
Capacitor charge<5 s/μF at 3 mA to 10 kV
Capacitor discharge<250 ms/μF to discharge from 10 kV to 50 V
Capacitance range10 nF to 25 μF (test voltage above 500 V), ±10% ±5 nF
Current range0.01 nA to 6 mA, ±5% ±0.2 nA at all voltages (20 °C)
Insulation test alarm100 kΩ to 10 GΩ
Timer rangeUp to 99 minutes 59 seconds, 15 second minimum setting
Voltmeter
Range30 V to 660 V AC or DC, 45 Hz - 65 Hz
Accuracy±3%, ±3 V
General
PowerRechargeable 10.8 V, 5.2 Ah Li-ion battery (meets IEC 62133:2003), or 90-264 V rms, 47-63 Hz, 100 VA AC supply
Battery charge time2.5 hours deep discharge, 2 hours normal discharge
Battery life4.5 hours (typical) continuous testing at 10 kV with a 100 MΩ load
Operating temperature-20 °C to 50 °C
Storage temperature-25 °C to 65 °C
Humidity90% RH non-condensing at 40 °C
IP ratingIP65 (lid closed), IP40 (lid open)
SafetyCAT IV 600 V to 3000 m altitude; meets IEC 61010-1
Dimensions315 x 285 x 181 mm
Weight4.5 kg
Memory
Capacity5.5 hours logging at 5 second intervals, with time / date stamp
InterfaceUSB type B (device), fully isolated
Real time output1 Hz output readings (V, I, R)
Supplied with
ContentsPower lead; USB cable; Two 3 m lead sets, one with medium and one with large insulated clips; Calibration certificate

Specifications are from the manufacturer's published information. Confirm critical values with us or the datasheet before ordering.

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