I---General introduction 
       1.GDYJ-502 is developed according to the national standard GB-86 Insulating Oil Dielectric Strength Testing Method .
       2.LCD screen can display test procedure and test result. All the human interaction operations complete by the rotating mouse .
       3.It is very easy for customers to measure the breakdown voltage of all kinds of oil by GDYJ-502. 
       4.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. 
       5.The special circuit design makes the tester has a good performance at stability and anti-noise.

II---Functions
1 Breakdown test of user-defined
2 Proof test
3 IEC156/IS6792/BS5874/
4 ASTM D1816 standard test
5 ASTM D877 standard test
6 5 minutes standard test
7 Manual test
8 Calibration interface for customers
9 Unloading data to PC and making word report automatically. 
10 Result print

III---Technique index 
1 AC220V input
2 Output voltage：AC 0V~100KV
3 Rate of voltage rise: 0.5kv/s±10%, 2kv/s±10%, 3kv/s±10%,5kv/s±10%
4 Max test times: 9
5 Stir time: 0~999s
6 Wait time: 0~999s
7 Test error: 3% max in the range of 10kv~100kv
8 Weight 41kg
9 Size: 620 mm*430mm*330mm