Products > Test Equipment

DC-Load wanted(Siglent SDL1020X-E found)

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delvo:
One downside to the siglent ones is that there is no public calibration/adjustment procedure (Id love to be proven wrong on this)

Martin72:
We (at work) had this topic in general a few years ago, regarding power supplies/loads also calibrating (having them calibrated).
If you record/measure the voltages/currents with external (calibrated) measuring equipment anyway, then you don't need to have it calibrated.

alm:

--- Quote from: Martin72 on January 02, 2024, 03:26:09 pm ---We (at work) had this topic in general a few years ago, regarding power supplies/loads also calibrating (having them calibrated).
If you record/measure the voltages/currents with external (calibrated) measuring equipment anyway, then you don't need to have it calibrated.
--- End quote ---

Sure, but isn't the value in a modern load / power supply the built-in measurement and programming features? Otherwise you could also use an old load or power supply with analog panel meters. You could of course do a software correction yourself before programming / after readback, so if you want it to sink 1 A and you know it's 1% low, you tell it to sink 1.01A. And if you know it reads back 1% high and it reads 1.01A, you calculate this to be 1A. But this is a hassle.

I don't understand the trend of particularly the upcoming brands like Siglent to not publish adjustment information. It's not like adjusting a power supply or electronic load is difficult or requires special equipment. A good DMM with an external current shunt for higher currents should be sufficient for 95% of the adjustments. The only exception would probably be rise time tests which would require a scope.

Martin72:

--- Quote ---you tell it to sink 1.01A
--- End quote ---

That's another question, whether you have to have a flowing current of 1A with an accuracy of less than 10mA.
Nevertheless, I can try to get more detailed information, which I would then share accordingly.

Martin72:

--- Quote from: blackdog on December 30, 2023, 12:38:42 pm ---Maybe build something yourself where you can control some properties yourself?
--- End quote ---

Hi Bram,

In progress... ;)

Martin

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