Review of the DY Digital Transistor Tester – Download as Word Doc .doc As for the resistor value you have to find it on your own because the manual. Hi Martin, i was really pleased when I saw you get out the Duoyi as I have one of those myself:) The manual though is certainly hard work to.

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The advantage of this meter over insulation tester is that it can be used to test on e-caps that have lower working voltage like 16 volt, 25 volt, 50 volts and etc. Thanks Charles Likes 0 Dislikes 0. April 17, The volt produce no result when test on non polar cap.

How this equipment dt294 used already mentioned in this blog.

Review of the DY294 Digital Transistor Tester-Part 1

Posted December 28, Hi Beh, It does test the Varistor. I have not tested these components yet. Try visit ebay and type in this keywords – DY Digital Transistor.

You can check the latest price there. The case is interesting, feels like tupperware the thick kind and is quite flexible. Jestine Likes 1 Dislikes 0. May 9, Posted December 29, 2.


For a good cap, it will show approximately v and if the non polar cap insulation have problem, it will show a very low voltage from 60 to about volt.

Just make sure that when you want to test a lower voltage of capacitor, the charging voltage should not exceed the working voltage.

The withstand voltages for caps feature is a good manaul.

Duoyi DY – Transistor Tester

January 31, Purchased one of the dy tester the manual is in Chinese so that does not do you a lot of good. I like that it can be used as an insulation tester and for testing varistors.

I found that this tester consume lots of current especially testing on the capacitor. Play, discover, learn and enjoy! Hi Tamakloe, Here is the link: Testing on Electrolytic Capacitor: Thanks Wimpie Likes 0 Dislikes 0.

DY294 Digital Transistor Tester / Semiconductor Tester

HI Daniel, You can buy from this link: Posted December 29, 4. Home Help Search Login Register. Hi John, Yes i dj294 it too.

December 18, If this non polar cap insulation have problem, the value could be less than volt. This test have similar function like an insulation tester. Set to v to test on non polar cap that have working voltage of 1kv and above.


Wimpie September 23, at 2: It test just the same way for a non polar cap. December 14, Please where can one get this to buy and how much is it? Jestine Yong November 7, at 9: Jestine Yong September 24, at 9: If there is a problem with the cap, there would be no charging or the charging would just stay at one value for example it stays at 8 volt and stop.

There is only one range for you to select to test the non polar cap- v. If you use a lower ohm value the non polar cap insulation may breakdown. I opened mine and looked.

Hi Willie, Here is the part 2 and 3: Looking really useful, I think I will definately order one of these.