Products > Test Equipment

TH2830 vs TH2832

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KungFuJosh:
I got my test board in and populated it. What a time saver! I got the whole test done on the ST2832 in just under an hour. Setting up the SMD stuff on the fixture one at a time before took hours to get the test done, and I didn't even test everything. Testing with the ST42 took under 20 minutes.

Here's my test board:


Test setup:


Results attached, along with the BOM of the parts on the board.

zrq:
Is it possible to try finding the factory calibration routine in the meter (hope it exists) and do it if you have some parts that you trust?

KungFuJosh:

--- Quote from: zrq on July 22, 2023, 05:16:49 pm ---Is it possible to try finding the factory calibration routine in the meter (hope it exists) and do it if you have some parts that you trust?

--- End quote ---

I have no idea! But I love the idea. If it's as easy as running an inbuilt routine and attaching some stuff, I can do that. 😉 I don't know if such a routine exists, and I'm certain Tonghui or ST won't share any service manuals. Of course, now I want to try and find a service manual anyway.

There is a "spot correction" option in the open/short correction screen. I think that might work along the lines of what you're suggesting for specific frequency correction. Only 2 problems with that so far: 1. I haven't figured out how to set it yet (haven't really tried though, didn't RTFM for that either), and 2. Every time you do open/short correction, it clears the spot correction.

nctnico:

--- Quote from: KungFuJosh on July 22, 2023, 04:52:30 pm ---I got my test board in and populated it. What a time saver! I got the whole test done on the ST2832 in just under an hour. Setting up the SMD stuff on the fixture one at a time before took hours to get the test done, and I didn't even test everything. Testing with the ST42 took under 20 minutes.

Here's my test board:


--- End quote ---
Why aren't the traces to the components split to have Kelvin connections all the way to the parts? I see a 10nH inductor there for example.

KungFuJosh:

--- Quote from: nctnico on July 22, 2023, 09:01:19 pm ---Why aren't the traces to the components split to have Kelvin connections all the way to the parts? I see a 10nH inductor there for example.

--- End quote ---

Two reasons:

1. I didn't know I should do that? 😉
2. It's perty good/accurate the way it is.

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