Marmonix MIR-1020 10 kV Insulation Resistance Tester

The Marmonix MIR-1020 insulation tester applies six test voltages from 250 V to 10 kV with a short-circuit current above 7 mA, for cables, motors, generators, transformers and other large equipment. It runs IR, PI, DAR, ramp and filtered-resistance tests, also measures voltage, capacitance and leakage current, blocks testing when the object carries more than 36 V, discharges automatically and stores 1000 results for USB upload. Browse all Marmonix insulation testers, or see the MIR-1000 for 100–1000 V checks.

MarMonix MIR-1020 Insulation Resistance Tester

The MarMonix MIR 1020 is an intelligent, high-performance digital insulation resistance tester engineered for the most demanding high-voltage applications. Designed for heavy industry, the MIR1020 excels in testing large-capacity equipment like transformers, generators, and long-distance transmission lines. Its ability to deliver test voltages up to 10kV and measure resistance up to 20TΩ makes it a top-tier instrument for electrical maintenance professionals.

Safety and precision are at the core of the MIR-1020. It features an automatic discharge function and real-time voltage monitoring to protect both the operator and the instrument from accidental live circuits. With advanced diagnostic modes like Polarization Index (PI), Dielectric Absorption Ratio (DAR), and Ramp Test (RAMP), the marmonix mir 1020 provides a comprehensive analysis of insulation health. Data from the MIR_1020 can be easily stored and uploaded to a PC via USB, ensuring streamlined reporting and trend analysis.

MarMonix MIR-1020 Key Features

Highlights of the MIR-1020:

• Precision Testing: Short circuit current >7mA for stable readings on large loads

• Capacitance: Measures up to 25uF with leakage current monitoring

• Rugged Build: Heavy-duty 4.9kg design for power plants and transmission lines

• Clear Interface: Large display with battery status and auto-shutdown function

Advanced Features MarMonix MIR-1020

The Marmonix MIR-1020 is designed to deliver precise and reliable insulation resistance testing for high-voltage applications.

Advanced functions of the MIR-1020 include:

• Wide Measurement Range: The MIR-1020 supports an extensive insulation resistance range from 0.5MΩ to 20TΩ, making it suitable for various high-voltage applications.
• Multiple Voltage Levels: The tester operates at six selectable voltage settings (250V to 10kV), providing flexibility for different testing requirements.
• High Short Circuit Current: With a maximum short circuit current exceeding 7mA, the MIR-1020 ensures reliable and accurate insulation resistance measurements.
• Real-Time Voltage Monitoring: The built-in voltage monitor function automatically detects and prevents testing if live voltage exceeds 36V, ensuring operator safety.
• Automatic Discharge Function: Once the test is completed, the device automatically discharges residual voltage, enhancing safety and efficiency.
• Comprehensive Testing Modes: Includes Insulation Resistance (IR), Polarization Index (PI), Dielectric Absorption Ratio (DAR), Ramp Test Mode (RAMP), and Filtered Resistance (FR) for in-depth insulation analysis.

MarMonix MIR 1020 Specifications

The Marmonix MIR-1020 is a high-precision insulation resistance tester designed for testing high-voltage electrical equipment. With advanced features and a durable design, it is ideal for professionals in power plants, telecommunications, and industrial maintenance. Below are its key specifications.

Buying guide: Read our insulation tester buyer’s guide.

Questions about the MIR-1020 insulation tester

What test voltages does the MIR-1020 offer?

The MIR-1020 has six fixed test voltages: 250 V, 500 V, 1000 V, 2500 V, 5000 V and 10 kV, with an output voltage accuracy of (5%–10%) ±10 V. Its datasheet lists cables, motors, generators, transformers, instrument transformers, high-voltage switches and arresters as typical test objects.

How accurate is the MIR-1020 at high resistance?

The MIR-1020 datasheet gives ±3% rdg ±5 dgt on the lowest band of each test voltage and ±5% to ±10% on the higher bands. At 10 kV it reads 1.00 MΩ–500 GΩ at ±5% rdg ±3 dgt, 500 GΩ–2 TΩ at ±10% and 2–5 TΩ at ±20%.

MIR-1020 or MIR-1000: which should I choose?

Choose the MIR-1020 for high-voltage assets that need 2.5, 5 or 10 kV tests, PI and DAR, and the MIR-1000 for everyday 100–1000 V insulation tests up to about 5.5 GΩ plus continuity in a handheld. The MIR-1020 is a 4.9 kg case instrument (IP65 with the lid closed) with a 6.2 Ah rechargeable battery; the MIR-1000 runs on 6 AA cells.