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Megger MIT417/2 Cat IV Insulation Tester

Megger
SKU: MEGGMIT4172
  • Offers insulation testing with maximum test voltage of 1000V, ensuring it is useful for a range of tasks
  • The MIT417/2 has a category IV safety rating up to 600V which gives the user ultimate peace of mind
  • The user can also conduct continuity testing with 200mA and 20mA test currents for versatility
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Megger MIT417/2 Cat IV Insulation Tester

The Megger MIT417/2 Cat IV Insulation Tester is a versatile, safe insulation tester that is suitable for industrial and electrical uses in addition to electrical installations, cable testing, motor testing, automotive work, ESD, panel building, avionics and other maintenance.

Concerning the Megger MIT417/2’s insulation testing capabilities, the most important upgrade from previous models is the maximum over voltage for testing is now just 2% rather than 10-20% so tests are more accurate and risk less damage. The user gets the choice of feedback-controlled test voltages of 10V, 25V, 50V, 100V, 250V, 500V or 1000V so it is suitable for a wide range of testing, including for specialised uses in aviation, telecommunications and voltage-sensitive electrical installations. The device also boasts polarisation index (PI) and dielectric absorption ratio (DAR) functions to provide a more complete picture. The display shows test voltage, insulation readings and a dynamic ‘analogue’ arc as well as a clear pass/fail indication which gives a quick, complete picture.

The device’s category IV safety rating up to 600V gives the user confidence when using the Megger MIT417/2 and further peace of mind is provided by the automatic voltage detection which prevents any testing when voltage is present over a certain limit, thus avoiding damage and risk. Furthermore, the buzzer alarm will sound should insulation resistance exceed certain limits.

Continuity testing can also be carried out with the Megger MIT417/2 thank to options of 200mA and 20mA test currents that provide versatility and help save the battery. Unlike previous models, the resistance range now goes continuously from 0.01Ω to 1MΩ, simplifying operation and making results clearer. The buzzer alarm can be set to sound if resistance goes above a user-adjusted level.

True RMS voltage measurement with frequency readings is another handy feature of the Megger MIT417/2 and allows the user to measure voltage up to 600V AC/DC at the same time as performing an insulation or continuity inspection.

With a weatherproof, sealed case conforming to industry standard IP54, the Megger MIT417/2 constitutes an accurate, versatile insulation tester with added capabilities, which is applicable in a large variety of different contexts.

Megger part number: 1004-738

Key Features

  • Designed for electrical and industrial applications
  • Suitable for electrical installations, cable testing, motor testing, automotive applications, ESD, panel building, avionics and other maintenance
  • Feedback-controlled test voltages for insulation testing
  • Tests at 10V, 25V, 50V, 100V, 250V, or 500V (0% to +2%)
  • Continuity testing with continuous resistance range and test currents at 20mA and 200mA
  • True RMS voltage measurement up to 600V AC/DC
  • Polarisation index and dielectric absorption ratio
  • Weatherproof to IP54 standard
  • Shock-proof, over-moulded design
  • Clear, digital display with analogue arc
  • Live circuit detection for improved safety
  • Buzzer alarm for continuity and insulation testing

What's In The Box?

  • Megger MIT415/2 Cat IV Insulation Testers
  • Megger MIT415/2 Cat IV Insulation Testers owner's information CD
  • Red/Black silicone test leads with probes and clips
  • SP5 remote switch probe 
  • 6 x AA alkaline batteries
  • Hard carry case
Specification

All quoted accuracies are at +20 °C.

Insulation

Nominal test voltage

  • MIT415/2, 10 V, 25 V, 50 V, 100 V, 250 V, 500 V,
  • MIT417/2 10 V, 25 V, 50 V, 100 V, 250 V, 500 V, 1000 V

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

Service Error: BS EN 61557-2 (2007)

  • 50V: ± 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%
  • Display range analogue: 1 GΩ full scale
  • Resolution: 0.1 kΩ
  • Short circuit/charge current: 2 mA +0% -50% to EN 61557-2 (2007)
  • 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 Ω to 999 kΩ (0 to 1000 kΩ on analogue scale)
  • Continuity accuracy: ± 3% ± 2 digits (0 to 100 Ω ) / ± 5% ±2 digitis (>500 kΩ- 1MΩ)
  • 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 9.00 Ω 

Voltage

  • Voltage range AC: 10 mV to 600 V TRMS sinusoidal (15 Hz to 400 Hz)
  • Voltage range DC: 0 to 600 V
  • Volt range accuracy AC: ±2% ±1 digit
  • Volt range accuracy DC: ±2% ±2 digit
  • Service Error: BS EN 61557-1 (2007) - ± 2.0% ± 2d, 0 V - 300 V AC/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

Frequency

  • Frequency measurement range: 15 Hz - 400 Hz
  • Frequency measurement accuracy: ±0.5% ± 1digit (100 Hz to 400 Hz unspecified)

Power supply

  • Batteries: 6 x 1.5 V cells, type IEC LR6 (AA, MN1500, HP7, AM3 R6HP) Alkaline / 6 x 1.2 V NiMH rechargeable cells may be used
  • Battery life: 3000 insulation tests with duty cycle of 5 sec ON /55 sec OFF @ 1000 V into 1 MΩ
  • Dimensions: Instrument 228 mm x 108 mm x 63 mm (9.00 in x 4.25 in x 2.32 in)
  • Weight: 600 g (MIT400/2), (1.32 lb)
  • Weight (instrument and case): 1.75 kg (3.86 lb)
  • Fuse: Use only 1 x 500 mA (FF) 1000 V 32 x 6 mm ceramic fuse of high breaking capacity HBC 10 kA minimum. Glass fuses MUST NOT be fitted.
  • Safety protection: The instruments meet EN 61010-1 (1995) to 600 V phase to earth, Category IV. Refer to safety warnings supplied.
  • EMC: In accordance with IEC 61326 including amendment No.1
  • Temperature co-efficient: <0,1% per °C up to 1 GΩ; <0,1% per °C per GΩ above 1 GΩ

Environmental

  • Operating temperature range and humidity: -10 to +55 °C; 90% RH at 40 °C max.
  • Storage temperature range: -25 to +70 °C
  • Calibration temperature: +20 °C
  • Maximum altitude: 2000 m
  • IP rating: IP 54