Description
The Hioki IR3455 Insulation Resistance Tester is a cutting‐edge digital megohmmeter designed to streamline insulation testing on high‐voltage equipment such as transformers, cables, and motors. Featuring an all-in-one design with an integrated rugged case and built-in test lead storage, this tester offers durability and convenience for field applications. It covers a wide testing voltage range—from 250 V up to 5000 V—and measures insulation resistance values up to an impressive 10 TΩ, ensuring reliable and precise evaluations even under challenging conditions.
Key Features
- Comprehensive Testing Range:
- Provides five selectable test voltages (250 V, 500 V, 1.00 kV, 2.50 kV, and 5.00 kV) for optimal measurement versatility.
- Measures insulation resistance up to 10 TΩ for high-voltage equipment.
- Advanced Calculation Capabilities:
- Automatically computes key indices such as the Polarization Index (PI) and Dielectric Absorption Ratio (DAR) to enhance diagnostic efficiency.
- Performs step voltage tests, gradually increasing test voltage to monitor insulation resistance and leakage current variation over time.
- Enhanced Data Management:
- Integrated data memory helps store measurement results, reducing the need for manual note-taking and streamlining record-keeping.
- Interface options allow for easy transfer of test data to a computer for further analysis.
- User-Centric Design:
- Features a bright LED luminous scale and digital bargraph display for quick visual interpretation of results.
- Rugged construction with a built-in case and test lead storage ensures the tester withstands rough environments.
- Operates effectively within an extended temperature range of -10°C to 50°C.
- Comprehensive Measurement Functions:
- In addition to insulation resistance, the IR3455 measures leakage current and voltage.
- Displays key parameters including set test voltage, actual output voltage, measured resistance, leakage current, DAR, and PI along with elapsed test time.
Technical Specifications
- Test Voltage:
- Range: 250 V to 5000 V DC with fine voltage increments (25 V steps between 250 V and 1 kV; 100 V steps above 1 kV).
- Measurement Range:
- Up to 500 GΩ at 250 V, 1 TΩ at 500 V, 2 TΩ at 1 kV, 5 TΩ at 2.5 kV, and 10 TΩ at 5 kV.
- Accuracy & Resolution:
- Provides readings with an accuracy of ±5% rdg. ±5 digits up to a defined threshold, then ±20% or ±30% with extended ranges, ensuring dependable results even at extremely high resistance values.
- Leakage Current Measurement:
- Sensitivity down to 1.00 nA across six ranges with high accuracy on critical low-current measurements.
- Voltage Measurement:
- Capable of measuring DC voltage from ±50 V to ±1.00 kV and AC voltage from 50 V up to 750 V (50/60 Hz) with high precision.
- Additional Functions:
- Incorporates insulation diagnostic functions including temperature compensation, auto discharge, live conductor warning, and automatic DC/AC detection.
- Provides data communication via USB 2.0 along with PC application software for enhanced post-test analysis.
- Display & Power Supply:
- Equipped with a digital LCD backlit for clear visualization of results up to 999 digits, complemented by a bar graph indicator.
- Powered by six AA (LR6) alkaline batteries, a battery pack, or an AC adapter for flexible usage, with continuous operation capabilities depending on the power source.
- Physical Dimensions:
- Approximately 260 mm (W) × 250.6 mm (H) × 119.5 mm (D) and weighing around 2.8 kg, the instrument is built for portability and rugged field use.
- Included Accessories:
- Comes with multiple test leads and alligator clips, a comprehensive instruction manual, batteries (if applicable), and necessary USB cables to support immediate deployment.
Get Yours Today!
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