What test voltages and resistance range does the MIR-1020 support?

Six preset voltages—250/500/1000/2500/5000/10,000 V—with an insulation resistance range from 0.5 MΩ to 20 TΩ.

Which diagnostic tests are built in?

PI (Polarization Index), DAR (Dielectric Absorption Ratio), Ramp test, and Filtered resistance (10/20/30/40 s), plus voltage, leakage current and capacitance measurements.

How does it protect the operator and the instrument?

A live-voltage monitor blocks testing above 36 V, and the instrument automatically discharges residual voltage after each test.

Does it store and export data?

Yes—up to 1,000 time-stamped records with USB upload to a PC.

What’s included in the box?

Red high-voltage test lead (alligator + hook), green and black test leads, plus the instrument in a rugged case.

MarMonix MIR 1020 Digital Insulation Resistance Tester

Marmonix MIR-1020 Insulation Resistance Tester - 10 kV, 20 TΩ, >7 mA, PI/DAR, USB Logging

Brand: Marmonix

SKU: 105371

MarMonix MIR 1020 is a high-precision digital insulation resistance tester designed for testing high-voltage equipment. With a wide measurement range (0.5MΩ–20TΩ), multiple voltage levels (250V–10kV), and advanced safety features like automatic discharge and live voltage monitoring, it ensures accurate, reliable, and safe testing in industrial environments.

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Description

Overview

The Marmonix MIR-1020 is a high-voltage insulation resistance tester designed for testing cables, motors, generators, transformers, high-voltage switches, inductors and surge arresters. With six adjustable voltage levels up to 10 kV and a measurement range from 0.5 megaohm to 20 teraohm, it is built for demanding applications in power plants, industrial facilities, distribution networks, telecoms and oil fields. Diagnostic modes such as PI, DAR, ramp and filtered resistance, plus live-voltage detection and automatic discharge, make it a safe and thorough tool for high-voltage insulation analysis.

Key Features

Wide insulation resistance range: 0.5 megaohm to 20 teraohm
Six adjustable test voltages from 250 V up to 10 kV
High short-circuit current exceeding 7 mA for stable readings
Live-voltage detection auto-stops the test above 36 V
Automatic discharge of residual voltage after testing
Diagnostic modes: IR, PI, DAR, ramp (RAMP) and filtered resistance (FR)
USB data logging for record keeping
Built for high-voltage cables, machines and transformers

Applications

High-voltage cable and busbar insulation testing
Motor, generator and transformer diagnostics
Switchgear, inductor and surge-arrester testing
Power plants, distribution networks and oil fields
Predictive maintenance and commissioning

What’s in the Box

Marmonix MIR-1020 insulation resistance tester
High-voltage test leads with clips
USB cable and software
Charger / power cable
Carrying case and user manual

Why buy from MME in UAE

MOHAMMAD MAHDI Electronics Trading LLC (MME) is a trusted supplier of Marmonix test and measurement equipment in the UAE. We offer genuine products, competitive pricing, fast local delivery across Dubai, Abu Dhabi and the wider UAE, and knowledgeable after-sales support. Download the datasheet

Specifications

Feature	Specification
Function	Insulation resistance measurement (IR), Polarization Index Test (PI), Dielectric Absorption Ratio Test (DAR), Ramp Test Mode (RAMP), Filtered Resistance Test (10S, 20S, 30S, 40S), Voltage Measurement (V), Capacity Measurement (uF), Current Measurement (nA)
Power Supply	Rechargeable lithium battery pack 6.2Ah
Rated Voltage	250V / 500V / 1000V / 2500V / 5000V / 10KV
Output Voltage Accuracy	(5%–10%) ±10V
Insulation Resistance Range	0.5MΩ – 20TΩ
Short Circuit Current	>7mA MAX
Polarization Index Test (PI)	Yes
Dielectric Absorption Ratio Test (DAR)	Yes
Ramp Test Mode	Test at 10% of the preset voltage until the preset voltage
Filtered Resistance Test Mode	10S, 20S, 30S, 40S
Capacitance Measurement	Range: 10nF – 25uF; Accuracy: ±10% ± 10nF
Voltage Measurement	Range: AC/DC 0V – 1000V; Accuracy: ±5% rdg ± 3V
Leakage Current Measurement	Range: 0.01nA – 9.00mA; Accuracy: ±5% rdg + 0.5nA
Voltage Monitor	Monitors measured object voltage and discharge status; prevents testing above 36V to protect instrument and operator
Test Time	Automatic record test time, range: 0s – 99995s
Storage Function	Automatically stores test data with date and time, up to 1000 groups
Upload Function	Uploads stored data to computer via USB cable
Battery Power Display	Displays battery power; alerts when battery is low
Automatic Shutdown	Auto shutdown after 15 minutes of inactivity
Meter Dimension	280mm × 260mm × 160mm
Weight	4900g
Test Wire	Red high voltage test wire (with alligator clip and hook), green test wire, black test wire
Protection Level	Closed case: IP65, Open case: IP40
Withstand Voltage (general)	3mA AC 50Hz
Working Temperature and Humidity	-20°C to 50°C, 80% RH
Storage Temperature and Humidity	-25°C to 65°C, 80% RH
Insulation Resistance	50MΩ at 1000V (between test circuit and shell)
Withstand Voltage (test circuit to shell)	AC 3kV 50Hz for 1 min
Suitable Safety Standard	IEC61010-1, IEC61326-1

Description Specifications

Marmonix MIR-1020 Insulation Resistance Tester - 10 kV, 20 TΩ, >7 mA, PI/DAR, USB Logging attributes

5001-10000

Max Test Voltage Range

yes

Pi Test

yes

Dar

> 100 GΩ

Max Resistance Range