Withstand Voltage Insulation Tester

1、The IDI616XH-E series withstand voltage insulation tester is a new generation electrical safety tester launched by Yidi Electronics in recent years, capable of performing up to three safety tests: AC withstand voltage, DC withstand voltage, and insulation resistance. Multiple models are available, with different integrated functions, allowing users to choose based on actual testing needs; the appearance of this series is elegant, conforming to the new industrial aesthetic and operational habits, with industry-leading output capabilities such as voltage range, leakage current, and resistance measurement ranges.

This series of testers can set management permissions, distinguishing between senior operators and general production line personnel to prevent misuse. The tester has 100 memory groups, each with 8 test steps, capable of single-step or continuous testing, suitable for testing products under different time, voltage, and current output levels to observe test data.

The tester features Charge-Lo function, which is highly convenient and reliable for actual safety testing operations. Benefits of Charge-Lo: When measuring DC withstand voltage or insulation resistance, it quickly determines whether the wiring between the instrument and the tested object is properly connected, avoiding unreliable measurement data caused by poor connections. For insulation resistance, larger values are better; operators usually only care about the lower limit not exceeding the threshold, not the upper limit. However, if the connection is poor, the insulation resistance appears “infinite,” and the tested object is “good,” leading to unreliable results. Conversely, during DC withstand voltage testing, leakage currents are very small, in the μA range, different from larger AC leakage currents, so connection quality cannot be judged by lower thresholds. The Charge-Lo function provides operators with a direct method to determine proper wiring during DC withstand voltage and insulation resistance tests. Almost all tested objects exhibit capacitance characteristics, and during DC withstand voltage or insulation resistance testing, a charging current will appear. As mentioned, during the first Charge-Lo setting, the first measurement of the tested object is performed, ensuring proper connection. When the operator presses the Test button to automatically set Charge-Lo, the instrument automatically sets half of the charging current as the Charge-Lo current and records it. During the next measurement, if the instrument detects no this current or a lower current than the recorded Charge-Lo, it alarms and displays “Charge-Lo,” indicating poor or unreliable connection (e.g., multiple strands of wire interrupted).

2、Industry applications：

Battery separators, battery cores, energy storage batteries, capacitors, supercapacitors, household appliances, commercial appliances, 3C consumer electronics, medical devices, lighting fixtures, charging stations, electric vehicles, rail transit, power electronic devices, power equipment, energy industry, motor coil products, power tools, third-party laboratories, and certification and quality inspection agencies.

3、Equipment selection：

4、Basic knowledge of electrical safety performance：

Insulation resistance test: Insulation resistance is an important electrical parameter reflecting the performance of insulating materials. This item can understand the insulation performance of the tested object, moisture or contamination of insulation, mainly measuring the equivalent resistance value of the network connected between two endpoints and their surrounding connections. Relevant regulations specify minimum insulation resistance requirements between conductors of different polarities to ensure the safe operation of electrical equipment.

AC/DC withstand voltage test: Also known as electrical strength test, it confirms whether to perform AC or DC withstand voltage testing based on the power environment of the tested product. By applying transient or continuous high voltage exceeding several times the rated voltage between live parts and the shell of the tested product, it verifies whether there is breakdown in live parts. During testing, the insulation part of the tested product bears abnormal stress, quickly revealing insulation failure or electrical clearance issues.