Products > Test Equipment
DC-Load wanted(Siglent SDL1020X-E found)
nctnico:
--- Quote from: Veteran68 on January 01, 2024, 04:31:16 pm ---
--- Quote from: nctnico on January 01, 2024, 04:26:43 pm ---I doubt that is truly possible as the 1030X lists a better accuracy compared to the 1020X-E. Unless the accuracy is crippled on purpose, there must be better parts used in a real 1030X.
--- End quote ---
Why would you think it not possible?
EDIT: You said accuracy, while I meant resolution. Still not aware of any difference between these.
--- End quote ---
Check the datasheet really carefully and you'll see there are differences in the accuracy specifications between the models.
And even though the board may look the same, it is possible the higher end models use more precise versions of the same components. Look at the LM4040 voltage reference as a random example. It is available in 4 grades going from 0.1% to 1%.
Martin72:
In all the values listed in the data sheet, there are only differences in this area ("Measuring Range") between the more expensive X model and the cheaper X-E variant.
However, I am not yet able to clearly assign the term "measuring range".
It can mean that the measurement and display are more accurate, but it can also mean that the better accuracy is not only used for display purposes, but is included in the overall accuracy.
As I write this, I think the latter will be the case.
nctnico:
Look at the accuracy specs. I never wrote about resolution :)
Martin72:
Ah, ahh...I didn't see that... :palm:
Well, the only solution would be to actually and directly compare an X model with an X-E via teardown.
Or, I would take and save various measurements, then "optimize" and repeat the measurements.
What I find suspicious is this jump in price.
However, if you can convert a Siglent 2.1Ghz SA to a 3.2Ghz SA/VNA, why should it be any different in the case of loads?
The only way to find out is to test more thoroughly.
egonotto:
Hallo,
The accuracy figures for readback voltage are somewhat strange. Since the X-E model has only 0.02% at FS, while the X-Model has 0.025% and thus less accurate in this range.
Best regards
egonotto
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