Products > Test Equipment
HOW TO CALIBRATE SIGLENT SDG1032X
tautech:
--- Quote from: KungFuJosh on October 16, 2023, 08:39:40 pm ---
--- Quote from: uargo on October 16, 2023, 08:34:44 pm ---SDG1032X - Sine wave 1KHz 1mVrms
SDM3055 = 0.991 mVrms
SDG1032X - Sine wave 1KHz 1Vrms
SDM3055 = 1.00850 Vrms
--- End quote ---
That's pretty good. Now, try again, and view the DC voltage BEFORE applying any DC Offset.
--- End quote ---
Thinking same.
When compared to Output Characteristics from the datasheet (P8) it seems within spec.
https://int.siglent.com/u_file/download/22_06_23/SDG1000X_DataSheet_DS0201X_E01I.pdf
alm:
--- Quote from: uargo on October 16, 2023, 08:23:39 pm ---Being on channel 1 (for example), press the "waveform" key then go to page 2, click on "DC", and with "DC Offset" you choose the voltage.
It leaves you from -10vdc to 10vdc
--- End quote ---
That's standard and documented in manuals for at least HP/Agilent/Keysight arbitrary waveform generators. Dave even made a video about it.
--- Quote from: tautech on October 16, 2023, 08:26:34 pm ---Yes, Cal scripts are now confidential.
As advised, return to Siglent in Germany for recalibration.
--- End quote ---
I'm hoping Siglent know the difference between calibration and adjustment...
Why would they make adjustment scripts confidential? It's not like something like an AWG or power supply needs extremely expensive, rare equipment to adjust. For this adjustment a good DMM would probably all that's necessary.
--- Quote from: tautech on October 16, 2023, 08:48:22 pm ---When compared to Output Characteristics from the datasheet (P8) it seems within spec.
--- End quote ---
That's true, looking at the initial measurements they seem to be within the 1% + 3 mV uncertainty as specified in the manual. So I wouldn't count on sending it for adjustment changing anything.
KungFuJosh:
--- Quote from: uargo on October 16, 2023, 08:46:33 pm ---When I talk about DC it is a pure DC, without AC of any kind.
and continues measuring the same as before
--- End quote ---
An AWG is not a DC voltage reference.
For better reference, here's my SDM3055 and SDG2122X:
AWG: 1VACrms
DMM: 0.99997Vac
DMM: -2.748mVdc
AWG: 1Vdc Offset
DMM: 0.99922Vdc
AWG: 1mVdc Offset
DMM: -1.788mVdc
Here we can see that (ignoring likely minor voltage loss over the cables) that the DC offset is only an offset, and not an accurate voltage source without knowing what voltage you're actually offsetting.
Test DC before and after applying offset and you can see how accurate the offset is.
uargo:
--- Quote from: KungFuJosh on October 16, 2023, 08:29:38 pm ---
--- Quote from: uargo on October 16, 2023, 08:23:39 pm ---Being on channel 1 (for example), press the "waveform" key then go to page 2, click on "DC", and with "DC Offset" you choose the voltage.
It leaves you from -10vdc to 10vdc
--- End quote ---
Try testing the ACVrms and see if that comes back accurately.
--- End quote ---
I already imagined it, but the calibration plus the round-trip shipping is respectable money.
What I don't understand is that Siglent itself has released a menu to calibrate them in the latest firmware of its multimeters, and in the SDG1032X it cannot be done.
tautech:
--- Quote from: alm on October 16, 2023, 08:49:19 pm ---
--- Quote from: tautech on October 16, 2023, 08:26:34 pm ---Yes, Cal scripts are now confidential.
As advised, return to Siglent in Germany for recalibration.
--- End quote ---
I'm hoping Siglent know the difference between calibration and adjustment...
Why would they make adjustment scripts confidential? It's not like something like an AWG or power supply needs extremely expensive, rare equipment to adjust. For this adjustment a good DMM would probably all that's necessary.
--- End quote ---
Checking if specs are met is outlined in the SM under Performance verification which anyone can do with the prescribed equipment.
Adjustment is a SW process and I know US branch has a Fluke 5200 for such needs. Not sure about EU.
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