Megger MIT1025 10kV Insulation Tester Megger

The MIT1025 is compact, light 10 kV insulation resistance tester for the diagnostic testing and maintenance of high voltage electrical equipment. Enclosed in a tough case it is both smaller and lighter than its predecessor making it even easier to carry and store.

As well as measuring insulation resistance to 20 TΩ, the MIT1025 also offers various diagnostic tests such as Polarization index, Dielectric Absorption Ratio, Step Voltage, Dielectric discharge and ramp testing.

Now equipped with lithium ion fast rechargeable batteries, the instrument has a large, clear, easy to read, display making it equally suitable for use in both bright sunlight and poorly lit environments. Information displayed includes resistance, voltage, leakage current, capacitance, battery status and time constant. In addition, the elapsed time of the test is displayed constantly removing the need for separate timer.

Overview

Features

• Industry best guard terminal accuracy
• Smaller size and lightweight allows easier transport and use without compromising performance
• Compact and lightweight for easy transport and use
• Auto IR, DAR, PI, Step Voltage, DD and Ramp
• Unique 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

Applications

• Electrical contractors
• Testing and service companies
• Wind farm and solar generation operators
• Power generation and distribution companies
• Industrial companies
• Rail companies
• Acceptance testing at installation to check conformance to specifications
• Routine preventive/predictive maintenance testing after installation
• QA testing as part of the manufacturing process
• Diagnostic testing to isolate faulty components for repair

Specifications

Insulation Range, Analog	100kW to 10TW
Insulation Range, Digital	10kW to 20TW
Test Voltages	500V, 1000V, 2500V, 5000V, and 10,000V
User Defined Test Voltages	100V to 1kV in 10V steps 1kV to 5kV in 25V steps 5kV to 10kV in 25V steps
Accuracy	±5% to 2TΩ, ±20% to 20TΩ
Voltage Output Accuracy	+4% -0% ±10V of nominal test voltage at 1GW load
Voltmeter Range	30 to 660V AC/DC, 50/60Hz
Voltmeter Accuracy	±3% ±3V
Frequency Range	45 to 65Hz
Short Circuit Current	3mA nominal, max. power on all loads outperforming many 5mA testers
Insulation Alarm	100kΩ to 1GΩ
Current Range	0.01nA to 6mA
Current Accuracy	±5% ±0.2 nA at all voltages
Capacitance Range (above 500V)	10nF to 25µF (dependent on measurement voltage)
Capacitance Accuracy	±10% ±5nF
Capacitor Charge	<5s per µF at 3mA to 10kV
Capacitor Discharge	<500 ms/µF to discharge from 10,000V to 50V

What’s in the Box

• MIT1025 Megohmmeter
• Power lead
• 3 x 1002-531 Medium insulated clips, 10ft (3m) leadset
• 3 x 1002-534 Large insulated clips, 10ft (3m) leadset
• User guide CD

Resources

Megger MIT1025 Spec Sheet