HIOKI HIGH VOLTAGE INSULATION TESTER IR3455

Hioki insulation resistance testers or megohmmeters feature all-in-one designs including built-in rugged cases and test lead storage compartments. The IR3455 hioki 5kv insulation tester is a 5-range, 250 V to 5000 V digital insulation resistance tester offering up to 10 TΩ of insulated resistance testing.

High-performance features include bar graph, built-in memory, leak current, and voltage testing, and DAR and PI calculation capabilities to help shorten work time associated with field insulation testing.

What is a high-voltage insulation tester?

Quality electrical insulation is of paramount importance in virtually any electrical system, not only ensuring reliable operation but also reducing the risk of electrical surges to electrical equipment and personnel. External physical and chemical factors slowly degrade the insulating material, which can fail at the most inopportune moment.

Changes in the dielectric properties of insulation materials that can lead to failure are best detected by high-voltage testing using high-voltage insulation testers, megohmmeters, or megohmmeters as they are commonly known.

HIGH VOLTAGE

In the high-voltage system, the insulation resistance is measured with a 5000-volt DC megger for voltages up to 6.6 kV. In addition, the insulation resistance is measured under the following conditions. Routine inspection according to the planned maintenance system (PMS).

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High-voltage insulation tester hioki ir3455 Specification:

• Measurement range: 0.00 MΩ to 500 GΩ (250 V) / 0.00 MΩ to 10.0 TΩ (5 kV)
• Measurement current: 1 mA (Test voltage 250 V to 1.00 kV), 0.5 mA (Test voltage 1.10 kV to 2.50 kV)
• Resistance range: 10 MΩ to 10 TΩ, 7 ranges (auto range)
• Leakage current measurement: 1.00 nA to 1.20 mA, 6 ranges / Accuracy ±2.5% rdg
• Voltage measurement: ±50 V to ±1.00 kV DC, 50 V to 750 V AC (50/60 Hz) / Accuracy: ±5 % rdg
• Temperature measurement: -10.0 ˚C to 70.0 ˚C, 3 ranges / Accuracy ±1.0 ˚C (0.0 ˚C to 40.0 ˚C)
• Power supply: LR6 (AA) alkaline batteries ×6, the Battery pack 9459, or AC adapter 9753 or 9418-15 (100 – 240 VAC)
• Dimensions and mass: 260 mm (10.24 in)W × 250.6 mm (9.87 in)H × 119.5 mm (4.70 in)D, 2.8 kg