Unitrend UT-61E

[Terabyte2007]

During a couple of extreme over-voltage tests, I pushed the UT-61E to 1200 VDC with no issue, the unit was reasonably accurate. These were controlled tests in a controlled environment with a current limited HV source. In the name of experimental science  , I pushed the Mastech MS8229 to 1800 VDC with no failure, although the displayed value was radically unstable it survived the test and was still in spec. I did not want to take the UT-61E to that extreme since I really like the meter! 

[SeanB]

I used a transistor tester that can do 1200V, bought from Frankie ( Ilovelectronics) which looks like a plastic lunchbox when not in use. Used to test transistors, diodes and most 3 pin regulators.

[Terabyte2007]

Quote from: 3roomlab on Today at 11:00:13 PM

>Quote from: Terabyte2007 on Today at 10:03:59 PM

During a couple of extreme over-voltage tests, I pushed the UT-61E to 1200 VDC with no issue, the unit was reasonably accurate. These were controlled tests in a controlled environment with a current limited HV source. In the name of experimental science  , I pushed the Mastech MS8229 to 1800 VDC with no failure, although the displayed value was radically unstable it survived the test and was still in spec. I did not want to take the UT-61E to that extreme since I really like the meter! 

what did you use to get to those HV levels? im curious to see

I have about 10 different PSU's. Ranging from 5V/80A to a 2kV precision variable. I'll post a few pics when I get back later!

[Terabyte2007]

I used a transistor tester that can do 1200V, bought from Frankie ( Ilovelectronics) which looks like a plastic lunchbox when not in use. Used to test transistors, diodes and most 3 pin regulators.

Can you set the voltage to what you need or want?

[SeanB]

Not really, it has 1200V and 200V ranges, and tests regulators using the internal battery voltage.  Duoyi DY294, usabe as a transistor tester to check breakdown voltage, gain and saturation voltage over a few current ranges.

[Terabyte2007]

Cool, I found it for around 38 US at Tester Depot. May have to look into this.