GDYJ-503 is developed according to the national standard GB-

86 Insulating Oil Dielectric Strength Testing Method .The

tester can test three cups of oil at the same time.LCD

screen can display test procedure and test result. All the

human interaction operations complete by the rotating

mouse .It is very easy for customers to measure the

breakdown voltage of all kinds of oil by GDYJ-503. You can

print the test result by the micro printer internal the

tester. Of course, you can upload the test data to PC from

RS232 for data analyzing. The special circuit design makes

the tester has a good performance at stability and anti-

noise.