Products > Test Equipment
Decent benchtop multimeter for beginner?
robert.rozee:
--- Quote from: KungFuJosh on August 18, 2024, 02:31:29 pm ---I attached a photo from the aliexpress listing for the ref I have [...]
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:palm:
nctnico:
I'm wondering how they measured the resistors on that board so accurately... :-DD But they don't look like low tempco, low drift resistors anyway. Also, the AD584 isn't the best reference out there. There are so many better choices.
KungFuJosh:
Make fun all you want, it's pretty damn good for $20. :-DD
Aldo22:
--- Quote from: KungFuJosh on August 18, 2024, 02:37:22 pm ---Make fun all you want, it's pretty damn good for $20. :-DD
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I ordered something similar for CHF 6.
Apparently it uses an AD584L which is supposed to be reasonably accurate (+- 5mV @ 10V).
According to the pictures in the comments, it's measured with a 34401A.
Let's see, I don't have it yet.
For this price you can give it a try.
It's just for fun, I only have an AN870.
bdunham7:
--- Quote from: KungFuJosh on August 18, 2024, 02:31:29 pm ---I have the ref warming up now, I'll turn on the meter soon and do the cold start test.
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The TC of that reference is probably not great, so keeping it at a constant temperature is more important than a long warmup. It's still an experiment worth doing, as well as the inverse with a stabilized meter. How good is the temperature stability of your lab/room/bench?
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