ETCR Insulation Meter ETCR3520 Touchscreen Anti‑Interference

Description

Product Overview

The ETCR3520 is a high‑performance insulation resistance meter designed for demanding industrial environments. Housed in a rugged ABS enclosure measuring 13.5 x 13 x 12 inches and weighing 13.9 pounds, the unit balances portability with durability. Its 7‑inch color touchscreen delivers clear, real‑time data, allowing operators to view test results, historical records, and system status on a single interface. The meter supports a wide range of measurement indices, including insulation resistance (IR), polarization index (PI), dielectric absorption ratio (DAR), step, ramp, dielectric discharge index (DD), distributed capacitance (CAP), and both AC and DC voltage testing. Advanced anti‑interference circuitry ensures stable operation on long cables and in high‑electromagnetic‑interference sites such as substations, while the built‑in voltage, current, and temperature monitors safeguard both the instrument and the user. With a memory capacity for 1,000 test records and USB communication for seamless data transfer, the ETCR3520 provides a comprehensive solution for precise insulation testing.

Usage

Designed for electricians, maintenance engineers, and field technicians, the ETCR3520 excels in a variety of real‑world scenarios. In power plants, it can assess the integrity of transformer windings and cable insulation, even when strong electromagnetic fields are present. Facility managers use the device to verify the condition of motor insulation during routine preventive maintenance, benefiting from the automatic voltage monitoring that prevents testing on live circuits exceeding 36 V. Its compact size and battery operation make it ideal for on‑site inspections of remote substations, industrial machinery, and renewable energy installations. The intuitive touchscreen interface reduces training time, allowing new users to quickly navigate measurement modes, set custom test voltages, and review historical data without consulting complex manuals. The automatic discharge function eliminates the need for external discharge circuits, enhancing safety and efficiency during repetitive testing cycles.

Why Choose Us

ETCR brings decades of expertise in electrical testing equipment, and the ETCR3520 reflects that heritage through meticulous engineering and rigorous quality control. Each unit undergoes a multi‑stage calibration process to meet international standards for accuracy and reliability. The strong anti‑interference technology is patented, providing superior performance on long, distributed capacitance sites where competing meters often falter. Our after‑sales support includes a dedicated technical helpline, online resources, and a one‑year warranty covering parts and labor. Customers benefit from regular firmware updates that introduce new features and improve existing functions, ensuring the meter remains future‑proof. By choosing the ETCR3520, users invest in a tool that combines precision, durability, and responsive support, delivering long‑term value across diverse industrial applications.

Key Features

• Vivid touchscreen displays real‑time results and history, simplifying operation and data review.
• Robust anti‑interference design maintains accurate measurements on long cables and in noisy environments.
• Automatic voltage, current, and temperature monitoring protects both equipment and operator.
• Built‑in automatic discharge quickly releases stored charge, eliminating the need for external discharge tools.
• Comprehensive USB data export and 1,000‑record memory enable easy analysis and long‑term record keeping.
• Customizable test modes, voltage levels, and duration settings adapt to specific site requirements.
• Durable ABS housing with ergonomic design ensures reliable performance in harsh field conditions.
• Dedicated after‑sales support and one‑year warranty provide peace of mind and ongoing assistance.

FAQ

What types of insulation can the ETCR3520 test?

The meter can evaluate insulation on cables, transformers, motors, generators, and other electrical equipment, covering a wide voltage range and providing indices such as IR, PI, DAR, and CAP.

How does the anti‑interference technology work?

It uses specialized filtering and shielding circuits that suppress external electromagnetic noise, allowing accurate measurements even in environments with strong interference like substations or industrial plants.

Can the device store and retrieve multiple test records?

Yes, the ETCR3520 can automatically store up to 1,000 test sets, each with date and time stamps, which can be browsed directly on the device or exported via USB for further analysis.

Is the meter safe to use on live circuits?

The built‑in voltage monitor stops testing if the measured voltage exceeds 36 V, preventing accidental energization of the test circuit and protecting both the instrument and the user.

What kind of support is available after purchase?

ETCR provides a one‑year warranty, a dedicated technical support line, online manuals, and firmware updates to ensure the meter remains up‑to‑date and fully functional throughout its service life.