Insulation tester MD 1035X

Highlights

• 1.000 V Megohmmeter
• Insulation test 10 kΩ to 1 TΩ
• Digital & bar-graph reading
• Automatic measurement:
  Dielectric Absorption Index (DAI),
  Polarization Index (PI)
• Chronometer up to 90 minutes
• Step voltage test
• Built-in printer (option)
• 4000 readings memory
• Isolated USB data port
• Software for data management
• Rechargeable battery

The MD1035x is a smart, microprocessor-controlled, 1 kV insulation tester. Besides the conventional measurement of insulation resistances up to 1 TΩ, its advanced features allow to automatically measure both the Polarization Index and Dielectric Absorption Index, thus significantly simplifying testing of transformers. This insulation tester is a portable, battery-powered equipment. Test voltage may be chosen from 100 V to 1 kV in 50 V increments. Due to its measurement principle (actual voltage and current readings) the accuracy of resistance measurement is not affected by any test voltage error.

The built-in chronometer automatically counts the elapsed time since the start of measurement. Measured values are transmitted through the USB interface and are printed in the built-in printer (optional) as a registration of the performed test. Furthermore, the measured values are stored in a non-volatile internal memory. Up to 4000 measured values may be stored, to be transferred afterward to a computer running the T-Logger program. This software allows a further analysis of the test results, including a graphical representation and automatic report generation. The real time clock and calendar, and the sequential test number, facilitates the identification of each test, and the organization of a predictive maintenance system by trend analysis. Some other advanced features are useful to run the most sophisticated insulation analysis. Configurable Pass-Fail and timed measurements are automatically performed, with a very simple and user-friendly setup. The measurement parameters are stored in the non-volatile memory for an easy configuration.

In order to guarantee the operator safety, the cabinet is made of a high breakdown strength plastic. Output terminals are placed in the furthest and most protected area of the equipment. A light indicator shows high-voltage presence and is switched-off when the capacities (both internal and external) are discharged up to reaching a safe value. The MD1035x is powered using a rechargeable LFP battery and has an automatic charger that may be connected to 100 - 240 V mains supply (through an AC Adapter). The cabinet is strong and lightweight, easy to carry, impact-resistant and suitable to be used under severe weather conditions. Thus the instrument supplies very reliable and accurate measurements both in laboratory and out in the field.

TEST VOLTAGES

• 100 V, 250 V, 500 V, 1000 V directly, one button selectable
• 100 V to 1 kV in 50 V increments
• DC, negative

MAXIMUM RESISTANCE READING

• 1 TΩ @ 1 kV

SHORT CIRCUIT CURRENT

• 1.5 ± 0.5 mA

TEST VOLTAGES ACCURACY

• ± 3% of nominal test voltages on 10 GΩ

EQUIPMENT BASIC ACCURACY

• ± 5% of reading ± 3 digits
• (1 MΩ to 500 GΩ at any test voltage)

ADVANCED FEATURES

• Automated Polarization Index calculation
• Automated Dielectric Absorption Ratio calculation
• Programmable Pass-Fail test
• Programmable Timer.

BUILT-IN PRINTER (OPTIONAL)

• Prints elapsed time, actual voltage and resistance measured each 15 seconds

BUILT-IN MEMORY

• Stores up to 4000 measured values

INTERFACE

• USB

BUILT-IN CHRONOMETER

• Shows elapsed time in mm:ss format. Count starts automatically for each measurement

REAL TIME CLOCK AND CALENDAR

• Allows a reliable identification for each test

ENVIRONMENTAL PROTECTION

• IP54 with closed lid

SAFETY CLASS

• In accordance with IEC 61010-1

E.M.C.

• In accordance with IEC 61326-1

ELECTROSTATIC IMMUNITY

• In accordance with IEC 61000-4-2

ELECTROMAGNETIC IRRADIATION IMMUNITY

• In accordance with IEC 61000-4-3

POWER SUPPLY

• Internal rechargeable LFP battery (LiFePO4 12 V - 3000 mAh)

BATTERY CHARGER

• 12 V - 2.0 A

OPERATING TEMPERATURE RANGE

• 23°F to 122°F (-5°C to 50°C)

STORAGE TEMPERATURE RANGE

• -13°F to 149°F (-25°C to 65°C)

HUMIDITY RANGE

• 95% RH (non condensing)

EQUIPMENT WEIGHT

• Approx. 5.96 lb (2.7 kg)

DIMENSIONS

• 10.78" x 9.84" x 4.88" (274 x 250 x 124 mm)

INCLUDED ACCESSORIES

• 2 Measuring test leads, 5.90 ft (1.8 meters)
• 1 Guard test lead, 5.90 ft (1.8 meters)
• 1 AC Adapter
• 1 USB communication cable
• 1 T-Logger user license
• 1 User guide
• 1 Carrying bag