HZ-5100-I Handheld 100A Contact Resistance Test Set

HZ-5100-I Handheld 100A Contact Resistance Test Set

I. Overview
The HZ-5100-I Handheld Contact Resistance Test Set is a high-precision digital instrument designed for switch testing, developed in strict compliance with IEC standards and the People's Republic of China's electric power industry standard DL/T845.4-2004. Utilizing high-frequency, high-power constant current switching power supply technology, it enables accurate measurement of contact resistance at the micro-ohm level.

II. Performance Characteristics

Equipped with multiple protection features against back EMF impact, line interruption during testing, power failure, and power supply overheating, ensuring reliable instrument protection with synchronous audio-visual alarms.

Intelligent power management technology keeps the instrument operating at minimal power consumption, saving energy and reducing heat.

Supports free switching between Chinese and English interfaces, with high output voltage and a wide measurement range.

Test current is supplied by a high-precision, high-current constant current source, enabling fast and accurate testing without manual adjustment.

Four-terminal wiring method effectively eliminates the influence of test lead resistance on measurement results.

Features a 7-inch high-brightness touch color LCD with clear visibility under strong light and full touch screen operation.

Can be connected to an external printer for outputting measurement data, facilitating paperless office operations (optional).

Built-in perpetual calendar clock and power-off storage allow up to 1000 test data sets to be saved for easy reference.

III. Technical Specifications

Test Current: 50A, 100A

Measuring Range: 0–5mΩ (50A); 0–2mΩ (100A)

Resolution: Minimum 0.1µΩ

Accuracy: ±(0.5% ± 2 digits)

Power: 1000W

Operation Mode: Continuous measurement

Power Supply: Battery powered

Operating Temperature: 0 ~ 40 ℃

Relative Humidity: ≤90% (non-condensing)

Test Lead Length: Red standard 5m, Black standard 3m (customizable)

Dimensions: 425×335×210 (mm)

Weight: 8kg

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