Hioki IR-4056 Insulation Tester

Hioki IR-4056 Insulation Tester

IR4056 Hioki’s megohmmeters feature all-in-one designs that include built-in rugged housings and test lead storage compartments. Labor time related to on-site insulation testing.

Hioki IR-4056-20 insulation tester provides an improved comparator function (comparative judgment) and notification of judgment results via sound and light, allowing operators to judge the results at a glance, leading to significant improvements in work efficiency.

The comparator compares measured values ​​with preset reference values ​​to make pass/fail decisions. With improved response performance, the Hioki ir-4056-20 provides an instant pass/fail decision when the test lead touches a target. for downloading hioki ir4056-20 pdf,hioki ir4056-21 manual,hioki megger manual click on the datasheet tab.

IR-4056 Features

• 5-range testing voltage of 50 V/100 MΩ to 1000 V/4000 MΩ
• Stable & medium-speed digital readings, 0.8 second response time of PASS/ FAIL decisions
• Drop proof onto concrete from 1m (3.28 feet)
• Bright LED, luminous LCD, test lead with bright LED lamp to illuminate near hand (Also available in the IR-4056-21)
• Continuity check via 200 mA testing
• Built-in AC/DC voltage meter, useful for testing solar power generation systems and electric vehicles

Introduction to the HIOKI IR-4056/IR4057

Frequency Asked Questions

What is the difference between Megger and insulation tester?

An insulation tester performs the basic measurement function that a megger performs: it measures very high resistance values ​​by sending a high voltage signal to the object under test, and it often does much more; typically performs more functions, including more complex tests and recording measurements.

What is an insulation tester?

Insulation testers use a high voltage, low current DC load to measure resistance in motor cables and windings to identify leakage currents and faulty or damaged insulation that can lead to arcing faults, burned circuits, and the risk of electric shock or fire.

What insulation resistance reading is acceptable?

Insulation resistance should be approximately one megohm per 1000 volts of working voltage, with a minimum of one megohm. For example, a 2400-volt motor should have an insulation resistance of at least 2.4 megohms.

HIOKI IR-4056 Specifications

• Effective maximum indicated value(250 V DC): 500 MΩ / Accuracy: ±2% rdg
• Lower limit resistance(250 V DC): 0.25 MΩ
• Overload protection(250 V DC): 600 V AC (10 s)
• DC voltage range: 4.2 V to 600 V, 4 ranges / Accuracy: ±1.3% rdg
• AC voltage range: 420 V, 2 ranges / Accuracy: ±2.3% rdg
• Power supply: AA alkaline batteries (LR6) ×4
• Dimensions and mass: 159 mm (6.26 in) W × 177 mm (6.97 in) H× 53 mm (2.09 in) D, 600 g