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MD 5075x

MD 5075x

The digital insulation tester model MD-5075x is Megabras' cutting edge insulation analyzer equipment and it is one of the most complete and sophisticated available in the international market. A powerful software allows for further analysis of tests results, including features such as graphical representation and automatic report generation. Its proven technology provides safe, reliable and accurate measurements of insulation resistances up to 5 TW, with 4 pre-selected test voltages, 500 V - 1 kV - 2.5 kV - 5 kV. Other test voltages may be selected in steps of 25 V, 100 V or 500 V.

A state-of-the-art microprocessor controls the equipment operation and enables the incorporation of advanced features which make measurements easier: auto-range selection, 4,000 readings memory, AC/DC voltmeter, automatic measurement of Absorption Index and Polarization Index, leakage current and capacitance measurement, timer enabling programming of test duration, configurable Pass-Fail test, Step voltage test, built-in printer, real time clock and calendar.

Built-in chronometer, indicating elapsed time, in minutes and seconds, since the test started, up to 90 minutes.

Features

 

  • Insulation Resistances up to 5 TΩ 
  • Automated tests:
    •   Absorption index
    •   Polarization index
    •   Capacitance
    •   Leakage Current
    •   AC/DC Voltmeter 
  • Step voltage test       
  • Switchable filter to remove external noise interference
  • Real time clock and calendar 
  • 4,000 readings memory
  • USB Interface
  • Software for data management
  • Built-in printer
  • Rechargeable battery

Specifications

Specification  
Test voltage 500 V, 1,000 V, 2,500 V, 5,000 V directly, one button selectable. 500 V to 5 k V in 25 V, 100 V or 500 V steps. DC, negative.
Maximum resistance reading 5 TΩ @ 5 kV
DC Voltmeter

 10 V up to 1000 Vdc.

Accuracy: ±(5% of reading + 3 digits)



AC voltmeter

 10 V up to 1000 Vr.m.s.

Accuracy: ±(5% of reading + 3 digits)



 Overvoltage Category   CAT -III 600V
 Leakage current measurement

 50 nF up to 10 µF @ 500 V

50 nF up to 5 µF @ 1,000 V

30 nF up to 2 µF @ 2,500 V

30 nF up to 1 µF @ 5,000 V.

Accuracy: ±10% of reading ± 3 digits.

 Short circuit current  Max. 3 mA
 Test voltage accuracy  ± 3% of nominal test voltages on GΩ
 Insulation tester basic accuracy

 ± 5% of reading 1 MΩ to 1 TΩ @ 5 kV

± 20% of reading 1 TΩ to 5 TΩ @ 5 kV

(for lower test voltages, the upper limit will be reduced proportionally).

± 20% of reading 10 kΩ to 100 kΩ.

± 10% of reading 100 kΩ to 1 MΩ.

Advanced features

Automated Polarization Index calculation

Automated Dielectric Absorption Ratio calculation.

Programmable Pass-Fail test.

Step Voltage Test.

4,000 Readings memory.

Switchable filter to remove external noise interference

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