Transformer DC Resistance Rapid Tester
Dary Electric recommends:
Transformer DC Resistance Rapid TesterFunctional Features:
1. Uses high-speed 16-bit A/D converter, stable measurement data, good repeatability.
2. Automatic program-controlled current source technology, with 1000 current gears set, automatically controlled by the internal microcontroller according to the measured resistance, thus achieving a relatively wide measurement range and optimal measurement state, without manual switching of current gears.
3. Fast response speed, can directly switch tap changer during measurement, the instrument will automatically prompt, and the new resistance value will be displayed soon.
4. Highly intelligent design, clever and advanced function settings, can automatically judge faults such as loose test leads or disconnection.
5. Complete protection functions, reliably protect the instrument from back EMF impact, with automatic discharge indication.
6. Can display measurement current and measurement time.
7. Intelligent power management technology effectively reduces internal heating of the instrument.
8. Can store 120 measurement data, not lost after power off.
9. All Chinese menu and operation prompts, intuitive and convenient.
Precautions:
1. Before switching the tap changer of an unloaded voltage-regulating transformer, be sure to reset. After discharge, wait until the discharge sound ends and the prompt message disappears before switching the tap changer.
3. After the test, press the "Reset" key, and be sure to wait until the discharge indicator light goes out and the prompt message disappears before turning off the power and disconnecting the wires.
4. During the test, avoid power outages or test clamp detachment.
5. Connect the ground wire before powering on, and disconnect the ground wire last after the test.
Usage Parameters:
>Measurement range: 0~2000Ω. (Six gears in total)
>Test current: 5A (20mΩ~2Ω); 0.5A (20Ω); 0.05A (200Ω); 0.005A (2000Ω).
>Resolution: 1μΩ (20mΩ gear); 10μΩ (200mΩ gear); 0.1mΩ (2Ω gear); 1mΩ (20Ω gear); 10mΩ (200Ω gear); 0.1Ω (2000Ω gear).
>Accuracy: 1mΩ~2000Ω ( ±0.5 % )
>Power consumption: ≤100W
>Operating temperature and humidity: 0℃~40℃; ≤ 85 % RH
>Withstand voltage: AC1.5kV 50HZ 1min
>Power supply: AC220V 50 HZ (±10 %)
>Dimensions: 350mm(L)× 260mm(W)× 140mm(D)
>Weight: approx. 3kg
Note: The above information and technical parameters are compiled and released by Yangzhou Dary Electric Co., Ltd.
