3A DC Resistance Tester

Published: 2019-08-19 11:26:40

Category: DC Resistance Tester

Product Description

^{The instrument extensively adopts high-integration SMD components and advanced constant current source technology, greatly reducing the volume, weight, and power consumption of the instrument, while further shortening measurement time, ensuring that the DC resistance measurement of large transformer windings is more stable and reliable. It is specially used for the measurement and analysis of inductive low-resistance values such as power transformer and mutual inductor windings.

Main technical parameters of 3A DC resistance tester:

1. Output current and measurement range:

This model has seven gears to choose from, consisting of one automatic gear and six current gears. Users can select the appropriate gear according to actual needs for measurement. If the resistance range of the test object cannot be estimated, please choose the automatic gear to let the machine complete the measurement automatically. The measurement range and accuracy corresponding to each gear are as follows:

①Automatic gear: 1mΩ-20000Ω Accuracy: 0.2 class ±5 digits

②10A gear: 1mΩ-500mΩ Accuracy: 0.2% ±2 digits

③5A gear: 50mΩ-1Ω Accuracy: 0.2% ±2 digits

④1A gear: 100MΩ-20Ω Accuracy: 0.2% ±2 digits

⑤100mA gear: 50Ω-500Ω Accuracy: 0.2% ±2 digits

⑥10mA gear: 1000Ω-2000Ω Accuracy: 0.2% ±5 digits

⑦1mA gear: 1000Ω-20000Ω Accuracy: 0.2% ±5 digits

2. Resolution: 1μΩ

3. Working temperature: 0～40℃

4. Ambient humidity: ≤90%RH, no condensation

5. Working power supply: AC220V±10%, 50HZ±1HZ

6. Dimensions: 360×265×230mm

Weight: 6Kg (excluding test leads)

Main features:

● Adopts linear power supply technology and high-integration SMD components, with microcomputer-controlled testing process, unaffected by human factors, ensuring stable and accurate test results

● Has complete back-EMF protection function and on-site anti-interference capability, anti-arcing, strong reliability

● Audible discharge prompt and LCD display of discharge completion, clear discharge indication, reducing misoperation

● Poor wiring or wiring errors prompt in Chinese and automatically terminate current output, high safety

● Full Chinese menu prompts, the instrument displays range and measurement range options on startup, simple operation, providing step-by-step work reference for on-site operation engineers, high intelligence

● Seamless aluminum alloy anti-static sprayed shell, with external shockproof case design. Lightweight, beautiful, sturdy and durable.}