NDDP-10A Handheld Contact Resistance Tester

Product Introduction

       Grounding down conductor is the connecting part between electrical equipment and the ground grid. During the long-term operation of electrical equipment, the connection point may be affected by factors such as moisture, leading to corrosion or even breakage of the node. This can result in an increase in resistance at the connection point between the grounding down conductor and the main ground grid, posing safety risks during equipment operation. In severe cases, it may cause the equipment to operate without proper grounding.

       The NDDP-10A Portable Grounding Down Conductor Conductivity Tester is suitable for quickly measuring the conductivity resistance value between the grounding down conductor of electrical equipment and the ground grid (or adjacent equipment). It is also applicable for measuring low-resistance values.

Product Features

☆、This tester is a portable device with a compact size and lightweight design.

☆、It features easy operation, high precision, anti-interference, shock resistance, and portability.

☆、Equipped with a high-capacity lithium battery, it can operate continuously for over 6 hours on a single charge. The battery can be replaced at any time, ensuring uninterrupted testing for users.

☆、The testing process is controlled by a microcomputer, automatically completing self-calibration, steady current judgment, data processing, and resistance value display.

☆、Features a fully transparent 7-inch large-screen LCD, providing clear visibility even in sunlight.

☆、Built-in embedded thermal printer for convenient on-site printing.

☆、The instrument uses silicone buttons to enhance tactile feedback during operation, making button presses more responsive. The silicone material also extends the button lifespan.

☆、The instrument's software is fully functional, including built-in user manuals, button descriptions, wiring diagrams, precautions, and other information for easy on-site reference.

☆、Features non-volatile clock and date display, with internal storage and USB storage capabilities to store more data. Equipped with R232 and USB interfaces for easy data transfer to computers.

☆、Comprehensive counter-electromotive force protection function.

☆、Fast measurement speed with accurate and stable measurement data.

Technical Parameters

Output Current  10A, 5A, 1A, 100mA

Measurement Range  10A：   1mΩ～0.2Ω

                5A：   2mΩ～1Ω

                1A：   10mΩ～5Ω

                100mA：0.2Ω～50Ω

Measurement Accuracy   ±(0.2% reading + 2 digits)

Measurement Radius   50m

Power Supply   Internal battery powered

Dimensions   300mm×175mm×80mm