20A DC Resistance Tester

ZZC-20A DC Resistance Tester

During the manufacturing of inductive coils of transformers, mutual inductors, reactors, and electromagnetic operating mechanisms, DC resistance measurement is required in factory tests, installation and handover tests, and preventive tests of the power sector for semi-finished and finished products. It can effectively identify manufacturing defects (e.g. loosening, strand missing, broken wires in material selection, welding, and connection for inductive coils) and hazards in operation. To meet the need for rapid measurement of the DC resistance of inductive coils, our company makes transformer DC resistance tester with advantages. With the novel power supply technology, this product features a small size, lightweight, wide test range, strong anti-interference ability, complete protection functions, and a large color LCD. Entirely controlled by the single-chip microcomputer, the tester is automatically carrying out self-testing and data processing and has the functions of automatic discharge and discharge indication. It also has high test accuracy and can be operated easily to measure the DC resistance.

1. Output current: 20A, 10A, 5A, 2A, 100mA, <5mA (6 levels for testing).

2. Range:

100μΩ to 1Ω (20A)

500μΩ to 2Ω (10A)

1mΩ to 4Ω (5A)

5mΩ to 10Ω (2A)

100mΩ to 200Ω (100mA)

200Ω to 100kΩ (<5mA)

3. Accuracy: 0.2% ± 2μΩ

4. Resolution: 0.1μΩ

5. Working temperature: 0-40℃

6. Ambient humidity: ≤90% Rh, no condensation

7. Altitude: ≤1000meters

8.Working power supply: AC220V ± 10%, 50Hz ± 1Hz

9. Dimensions: 400mm * 340mm * 195mm

10. Weight: 8.6Kg

1. The tester has 6 levels of output current (maximum: 20A; minimum: <5mA), which is suitable for DC resistance measurement of a variety of transformers and mutual inductors.

2. The measurement range of the tester is 100μΩ to 100KΩ.

3. The tester has a higher response speed. The on-load tap switch can be directly enabled during measurement, and the tester will automatically refresh data.

4. The tester has the function of sound discharge alarm and clear discharge indication, to reduce misoperation.

5. The tester has complete protection functions for reliable protection against the impact of back EMF, thus achieving more reliable performance.

6. The tester is equipped with a 7-inch color LCD screen, which can display data clearly and attractively. In addition, output results can be printed in a real-time manner.

7. The operation interface (Chinese and English) of the tester can be configured as required by customers.

8. The tester has an RS485 communication interface to transmit test data to the background.

9. The tester has a large storage capacity for 500 test records at most.

10. The tester has a USB interface for the transfer of test data into USB flash disks.

11. More complete parameters can be set, including the test winding, tap position, test phase, test sample temperature, conversion temperature, and others of the transformer.

12. The tester has an industrial plastic case, which is easy to carry and helpful to prolong the service life.

discharging rod

1. Delivery： Fast delivery and Flexible mode of transportation
2. Payment: Choose payment terms and payment way you convenient
3. Sale service: 24-hour online contact, Choose the right model of equipment according to your request, give the best offer, support customization
4. Warranty period: All machine quality guarantees for one year and lifetime technical support for you. Online response to customers' technical problems.

Our service

01

Pre-sale service

Conduct product consultation, product promotion, and marketing activities, and technical support for customer needs.

02

Delivery service

Packing with wooden cases, provide different solutions of shipping way, accept different payment way. Save shipping cost and make sure the products arrive well.

03

After-sales service

Installation and commissioning of specific products; Respond to consumer questions, answer consumer inquiries, and deal with consumer comments.

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