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Qingdao Prusi Electrical Equipment Co., Ltd
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Qingdao Prusi Electrical Equipment Co., Ltd

  • E-mail

    qdsfth@163.com

  • Phone

    13656423482

  • Address

    North end of Liuzhou Road, Pingdu City, Shandong Province

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SZL-20AS Three Channel DC Resistance Tester

NegotiableUpdate on 01/22
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Overview

The SZL-20AS three channel DC resistance tester is a necessary test item for the measurement of DC resistance in the manufacturing of inductive coils such as transformers, transformers, reactors, and electromagnetic operating mechanisms, including semi-finished and finished products, factory testing, installation, handover testing, and preventive testing by power departments. It can effectively detect manufacturing defects such as material selection, welding, loose connection parts, missing strands, and broken wires of inductive coils, as well as hidden dangers after operation

Product Details

SZL-20ASThree channel DC resistance testerThe measurement of DC resistance is a necessary item for semi-finished and finished product factory testing, installation, handover testing, and preventive testing in the manufacturing of inductive coils such as transformers, transformers, reactors, and electromagnetic operating mechanisms. It can effectively detect manufacturing defects such as material selection, welding, loose connection parts, missing strands, and broken wires of inductive coils, as well as hidden dangers after operation. In order to meet the needs of rapid measurement of DC resistance in inductive coils, our company has developed the SZL series using our own technological advantagesThree channel DC resistance testerThe instrument adopts a new power technology, which has the characteristics of small size, light weight, large output current, wide range, and digital display

IIThree way DC resistance testerFeatures

  • When testing windings with neutral point leads in the star connection method, the instrument can adopt a three-phase simultaneous measurement method to test the DC resistance of A0, B0, and C0 phases, greatly saving testing time;
  • Display and print all test data of the high, medium, and low voltage windings of the transformer, and automatically calculate the three-phase unbalance rate;
  • Equipped with comprehensive back electromotive force protection function;
  • Equipped with automatic discharge and discharge indication functions, reducing misoperation and ensuring equipment and personnel safety;
  • The instrument can store 500 sets of test data and can also use a USB drive to store data;
  • The instrument adopts a 5.7-inch ultra large LCD display, which can print test results at any time;
  • The instrument has the characteristics of wide temperature range, high accuracy, shock resistance, anti-interference, and easy portability.

IIIThree way DC resistance testerTechnical Specifications

Output current three-phase test: 2 * 10A, 2 * 5A, 2 * 2A

Single phase testing: 20A, 10A, 2A

Test range 2 * 10A: 500 μ Ω~ 500m Ω

2*5A: 1mΩ~1Ω

2*2A: 2.5mΩ~2.5Ω

20A: 250μΩ~1Ω

10A: 500μΩ~2Ω

2A: 2.5mΩ~10Ω

Resolution 0.1 μ Ω

Measurement accuracy ± (0.2% reading+2 words)

Dimensions 420mm × 250mm × 340mm

Instrument weight 15kg

4Three way DC resistance testerTerms of Use

Environmental temperature -10 ℃~50 ℃

Environmental humidity ≤ 85% RH

Working power supply AC220V ± 10%

Power frequency 50 ± 1H