ZGY-20A/40A DC Resistance Tester Detailed Information



 



 II.      ZGY-20A/40A DC Resistance Tester Safety Measures:



  1. Before using this instrument, be sure to read this manual carefully.



  2. The operator of the instrument should have general knowledge of electrical equipment or instruments.



  3. This instrument can be used indoors and outdoors, but should avoid places with rain, corrosive gases, excessive dust, high temperature, direct sunlight, etc. The instrument should avoid severe movement.



  4. Maintenance, care, and adjustment of the instrument should be carried out by professionals.



5. After testing, be sure to wait until the discharge alarm sound stops before turning off the power and removing the test leads.



6. When measuring no-load tap-changing transformers, be sure to wait until the discharge indication alarm sound stops before switching gears.



7. During testing, it is forbidden to move the test clamps and power supply lines.



 



I.      Overview:



  ZGY-20A/40A DC Resistance Tester measurement is a mandatory test item for semi-finished and finished products in the manufacturing of inductive coils such as transformers, mutual inductors, reactors, electromagnetic operating mechanisms, etc., as well as for factory tests, installation, handover tests, and preventive tests by power departments. It can effectively detect manufacturing defects such as material selection, welding, loose connections, missing strands, broken wires, and hidden dangers after operation. To meet the need for rapid measurement of DC resistance of inductive coils, our company has developed a DC resistance tester using our technical advantages. It adopts new power supply technology and has the characteristics of small size, light weight, large output current, wide range, digital display, and internal lithium battery power supply. The whole machine is controlled by a single-chip microcomputer, automatically completing functions such as self-check, data processing, and display, and has automatic discharge and discharge indication functions. The instrument has high testing accuracy, is easy to operate, and can achieve rapid measurement of DC resistance.



 



III. Performance Features



1. The instrument has a large output current and is light in weight.



2. The instrument provides 6 levels of output current selection, with a maximum output current of 10A.



3. The instrument has a wide measurement range, 0-50KΩ.



4. It has a complete protection circuit for more reliable performance.



5. Powered by lithium-ion battery, convenient for on-site operation.



6. LCD menu operation prompts for ease of use.



7. It has audible and LCD discharge alarm indication, with clear discharge indicators to reduce misoperation.



IV.