The DC resistance of transformers is a project in the manufacturing of semi-finished and finished products, factory testing, installation, handover testing, and preventive testing by the power department. It can effectively detect manufacturing defects such as material selection, welding, loose connection parts, missing strands, and broken wires of transformer coils, as well as hidden dangers after operation.

This testing instrument is an innovative product with a built-in large capacity lithium battery. The instrument and testing line are designed with an integrated machine line, and the product is compact in size and easy to carry. The product is not only suitable for measuring inductive samples such as transformers, transformers, and reactors, but also for measuring resistive samples such as copper bars, wires, and switch contacts. The instrument testing speed is fast and the accuracy is high.

▶ Powered by lithium batteries or 220V AC power, it is adaptive and can continuously test the DC resistance of hundreds of transformers on a single charge. The testing process is simple and convenient.

▶ Output six levels of current, with a large output of 10A current and a large output of 25V voltage, and can automatically select the current for convenience and speed.

▶ Wide range and high accuracy, 500u Ω~50K Ω.

▶ Equipped with resistance temperature conversion function.

▶ It has multiple protection functions such as back electromotive force protection, wire breakage protection, power-off protection, and overheating alarm.

▶ 4.3-inch industrial grade high brightness color LCD screen, displaying clearly and visibly even in strong sunlight.

▶ It has both local storage and USB storage.