10A DC Resistance Tester

10A DC Resistance Tester

    The measurement of DC resistance is a mandatory test item for semi-finished and finished products during factory inspection, on-site installation, handover tests, and preventive maintenance tests conducted by power departments for inductive coils such as transformers, transformers, reactors and electromagnetic operating mechanisms. It can effectively detect manufacturing defects and potential operational hidden troubles of inductive coils, including material selection problems, poor welding, loose connections, strand missing and wire breakage.

     To meet the demand for rapid DC resistance measurement of inductive coils, our company has developed a DC resistance tester relying on our own technical advantages. Adopting brand-new power supply technology, the instrument features small size, light weight, large output current, wide measuring range, digital display and AC mains power supply.

Controlled by a single-chip microcomputer, the whole machine is equipped with functions such as multiple current gear selection, data processing and display, and discharge indication. With high testing accuracy and simple operation, it enables fast measurement of DC resistance.

1.Output Current: 10A, 5A, 1A, 100mA, 10mA, 1mA, Auto

2.Measuring Range:0.5mΩ～1.6Ω (10A gear)

                                20mΩ～3.2Ω (5A gear)

                                100mΩ～16Ω (1A gear)

                                16Ω～100Ω (100mA gear)

                                100Ω～2kΩ (10mA gear)

                                2kΩ～100kΩ (1mA gear)

3.Accuracy: ±(0.2% + 2 digits)

4.Resolution: 0.1μΩ

5.Operating Temperature: -20～40℃

6.Ambient Humidity: ≤80%RH, no condensation

7.Altitude: ≤1000m

8.Power Supply: AC220V±10%, 50Hz±1Hz

9.Overall Dimension: 323×275×135mm

10.Weight: 4.0kg

• The instrument features large output current and light weight.
• It provides 7 selectable output current gears, with a maximum output current up to 10A.
• Built with a complete protection circuit for higher operational reliability; it is equipped with an acoustic discharge alarm to avoid misoperation.
• Wide measurement range from 0.5mΩ to 100kΩ. The temperature of the test object can be set manually, and the instrument automatically calculates the converted resistance value.
• It can calculate the three-phase unbalance rate, enabling quick and intuitive evaluation of transformer operation stability.
• Equipped with a 7-inch color touch screen at 800×480 pixel resolution, supporting Chinese/English menu switching and real-time printing of test results.
• Comes with an RS232 interface for transmitting test data to the background system.
• Supports powerful data storage, with a capacity of up to 1000 test records.
• Built-in USB interface allows saving test data to a USB flash drive.
• Comprehensive parameter settings are available, including transformer test winding, tap position, test phase, test object temperature, conversion temperature, winding material and other options.