Power Testing Instruments

Insulation Resistance Tester

32-bit MCU-controlled insulation resistance tester with digital and analog dual display, automatic DAR/PI/DD calculation, up to 10000V test voltage and 2000GΩ measurement range.

Insulation Resistance Tester

Overview

32-bit MCU-controlled insulation resistance tester with digital and analog dual display, automatic DAR/PI/DD calculation, up to 10000V test voltage and 2000GΩ measurement range.

Application Scenarios

Insulation resistance measurementDAR, PI and DD index calculationUltra-high-voltage substation field testingCapacitive test-object discharge testing

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Detailed Description

Overview: this insulation resistance tester uses a 32-bit micro-controller with an automatic measurement interface. It automatically calculates and displays DAR, PI and DD indices and shows measurement data every 5 seconds up to 600 seconds.

Display: it provides digital and analog pointer dual display, showing voltage and resistance data in real time, and can display a waveform graph of insulation resistance against test time.

Performance: the output current is large with a short-circuit current of at least 5mA and strong anti-interference for ultra-high-voltage substation field work. A dedicated discharge circuit discharges large capacitive test objects quickly - a 1μF capacitive test object discharges in about 3 seconds.

Power and interfaces: it has a built-in rechargeable battery and charger (6-12 hours continuous use per charge) and an RS232 serial port for computer operation of the instrument.

Technical Specifications

Test voltages250V, 500V, 1000V, 2500V, 5000V, 10000V
Range (250V)0.1M-1G (±10%), 1-10G (±20%)
Range (500V)0.1M-20G (±10%), 20-200G (±20%)
Range (1000V)0.1M-40G (±10%), 40-400G (±20%)
Range (2500V)0.1-100G (±10%), 100-1000G (±20%)
Range (5000V)0.1-200G (±10%), 200G-2000G (±20%)
Range (10000V)0.1-200G (±10%), 200G-2000G (±20%)
DisplayDigital and analog pointer dual display
Temperature measurement-45°C to 125°C
Test voltage accuracy10%±10V
Short-circuit current≥5mA
Measurement time1-10 minutes (depends on method)
Power supply180-270VAC, 50Hz/60Hz±1%
Operating environment-10°C to 40°C, 20%-80%RH

Frequently Asked Questions

What is the Insulation Resistance Tester used for?
It measures insulation resistance and automatically calculates and displays DAR, PI and DD indices, with real-time display of measurement time, voltage and resistance, and a waveform graph of insulation resistance against test time.
What test voltages and ranges does it support?
It provides test voltages of 250V, 500V, 1000V, 2500V, 5000V and 10000V, covering measurement ranges from 0.1MΩ up to 2000GΩ with a short-circuit current of at least 5mA for strong anti-interference at ultra-high-voltage substations.
How do I get a quotation?
Email your required test voltages and ranges to bowen@harchin.com. The instrument is manufactured in our Nanjing facility and quoted directly from the factory based on your configuration.

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