ETCR3520C High Voltage Insulation Resistance Tester Touchscreen

Description

Product Overview

The ETCR3520C is a high voltage insulation resistance tester designed for professionals who require precise and reliable measurements in challenging environments. Built by ETCR, a trusted name in industrial testing equipment, this device integrates a bright, full‑color touchscreen that displays real‑time data, historical records, and diagnostic information in an intuitive format. The unit measures key parameters such as insulation resistance (IR), polarization index (PI), dielectric absorption ratio (DAR), step (STEP), ramp (RAMP), dielectric discharge index (DD), distributed capacitance (CAP), and both AC and DC voltage levels. Its robust construction, with a rugged housing and sealed connectors, ensures durability against dust, moisture, and mechanical shocks commonly encountered on site.

Key specifications include a compact package size of 13.4 x 13.2 x 12.2 inches and a weight of 13.5 pounds, making it portable enough for field technicians while still providing the power needed for high‑voltage testing up to 36 V live voltage monitoring. The tester is powered by a built‑in lithium‑ion battery, guaranteeing up to several hours of continuous operation without the need for external power sources. The device also features USB communication for seamless data transfer to computers for further analysis and reporting.

Usage

This tester excels in a variety of real‑world applications. In electrical substations, where strong electromagnetic interference can compromise measurement accuracy, the ETCR3520C’s unique anti‑interference technology maintains stable performance, allowing engineers to assess insulation health of transformers, switchgear, and busbars with confidence. For long cable runs, the device’s ability to handle large distributed capacitance ensures accurate resistance readings even over extended lengths, making it indispensable for cable manufacturers, maintenance crews, and utility companies.

Field technicians benefit from the automatic voltage, current, and temperature monitoring functions, which continuously display the status of the test circuit and alert the operator if the live voltage exceeds safe thresholds. The built‑in discharge function quickly releases residual charge after testing, eliminating the need for external discharge equipment and enhancing safety. The tester’s large memory can store up to 1,000 test records, each tagged with date and time, enabling quick retrieval of historical data during routine inspections or troubleshooting sessions.

Because the ETCR3520C supports custom test modes, users can define specific voltage levels and test durations to match unique site requirements. Optional calculation formulas for PI and DAR provide flexibility for different standards and regulatory guidelines. The device is also suitable for educational institutions teaching electrical safety and testing principles, thanks to its clear visual interface and comprehensive data logging capabilities.

Why Choose Us

Choosing the ETCR3520C means selecting a product backed by years of engineering expertise and a commitment to quality. ETCR’s rigorous manufacturing processes include multiple stages of calibration, environmental testing, and functional verification to ensure each unit meets exacting performance standards. The tester’s anti‑interference circuitry is the result of proprietary research that minimizes the impact of external electromagnetic fields, a common challenge in industrial settings.

Customer support is a core pillar of the ETCR brand. Buyers receive access to a dedicated technical assistance team, comprehensive user manuals, and online resources such as firmware updates and troubleshooting guides. In addition, a one‑year warranty covers any manufacturing defects, and optional extended service plans are available for organizations that require prolonged coverage.

Environmental responsibility is also a priority. The ETCR3520C’s lithium‑ion battery is designed for long life and safe disposal, and the device’s low‑power design reduces energy consumption during idle periods. All materials comply with RoHS and REACH regulations, ensuring the product is safe for both users and the environment.

Key Features

• Bright touchscreen provides instant visual access to test results and history, simplifying data interpretation.
• Anti‑interference technology ensures accurate measurements even in high‑EMI environments like substations.
• Automatic voltage, current, and temperature monitoring protects both the instrument and operator.
• Built‑in discharge quickly releases residual charge, eliminating the need for external discharge tools.
• Comprehensive after‑sales support includes technical assistance, warranty coverage, and optional service plans.

FAQ

What is the maximum test voltage the ETCR3520C can handle?

The tester is designed for high‑voltage insulation testing up to 10 kV, with built‑in safety limits that prevent operation above 36 V live voltage to protect the user.

Can the device store multiple test records for later analysis?

Yes, the ETCR3520C can automatically store up to 1,000 test records, each including the measured values, date, and time, which can be reviewed on the device or exported via USB.

Is the battery rechargeable, and how long does it last?

The integrated lithium‑ion battery is rechargeable and provides several hours of continuous operation, depending on the testing mode and frequency of use.

How does the anti‑interference technology work?

The device employs shielding and filtering circuits that suppress external electromagnetic noise, maintaining stable measurement accuracy even in environments with strong EMI sources.

What kind of warranty does ETCR offer?

ETCR provides a one‑year limited warranty covering manufacturing defects, with options to extend coverage through additional service contracts.