Products > Test Equipment
DC bias (or offset) adjustment availability
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rf-loop:

--- Quote from: alm on November 25, 2023, 08:45:03 pm ---
--- Quote from: taydin on November 25, 2023, 08:29:30 pm ---But, if the front end would have removed the 8V offset, I would be able to go to a much lower vertical range (in case the sine wave amplitude was much lower), and I would be able to measure the ACTUAL RMS and average value of the sine wave that's riding on the DC offset. So I don't understand, how are these two scenarios equivalent?

--- End quote ---
Read rf-loop's post again. Every scope will have a limited offset range, one that usually goes up with the vertical range. Regardless if DC offset is a separate setting from position or not. What you're looking at, is what the offset range is at the vertical attenuation setting you want to use. For example, for an 8V offset the SDS-1000X-E goes down to 152 mV/div, while the DHO4000 goes down to 65 mV/div, and the SDS-2000X goes down to 10.2 mV/div. Looks to me like the SDS-2000X is the superior scope for this particular measurement.

--- End quote ---

for an 8V offset the SDS-1000X-E goes down to 152 mV/div  (typemistake perhaps: 102mV/div) ;)
ETA: correct value is 120mV/div

But SDS2000X HD have quite good offset properties.

Old discontinued SDS2000X can not same, also SDS2000X Plus  can not.
alm:

--- Quote from: rf-loop on November 25, 2023, 09:11:35 pm ---for an 8V offset the SDS-1000X-E goes down to 152 mV/div  (typemistake perhaps: 102mV/div) ;)

--- End quote ---
If it's a typo, then the typo was made by Siglent. See page 8 of the datasheet.
tautech:

--- Quote from: alm on November 25, 2023, 09:19:11 pm ---
--- Quote from: rf-loop on November 25, 2023, 09:11:35 pm ---for an 8V offset the SDS-1000X-E goes down to 152 mV/div  (typemistake perhaps: 102mV/div) ;)

--- End quote ---
If it's a typo, then the typo was made by Siglent. See page 8 of the datasheet.

--- End quote ---
You might consider tests by rf-loop have discovered better. The  ;) one can presume is the clue.
rf-loop:

--- Quote from: alm on November 25, 2023, 09:19:11 pm ---
--- Quote from: rf-loop on November 25, 2023, 09:11:35 pm ---for an 8V offset the SDS-1000X-E goes down to 152 mV/div  (typemistake perhaps: 102mV/div) ;)

--- End quote ---
If it's a typo, then the typo was made by Siglent. See page 8 of the datasheet.

--- End quote ---

Your data sheet is from 2017.

Also it looks like I made error...  ;D  120mV/div is correct for SDS1000X-E.   (102mV/div is SDS2000X Plus)
SDS1000X-E current data sheet; Rev. 04D Aug. 2021



And in your link it is this very obsolete (look this address):
siglentna.com/USA_website_2014/Documents/DataSheet/SDS1000X-E_DataSheet_DS0101E-E03A.pdf

Also if look Siglent NA, there is current version available
there is: siglentna.com/wp-content/uploads/dlm_uploads/2021/08/SDS1000X-E_DataSheet_EN04D.pdf

alm:

--- Quote from: rf-loop on November 25, 2023, 09:58:13 pm ---And in your link it is this very obsolete (look this address):
siglentna.com/USA_website_2014/Documents/DataSheet/SDS1000X-E_DataSheet_DS0101E-E03A.pdf

Also if look Siglent NA, there is current version available
there is: siglentna.com/wp-content/uploads/dlm_uploads/2021/08/SDS1000X-E_DataSheet_EN04D.pdf

--- End quote ---
Hey, I can't help it if Siglent NA leaves old data sheets on their website, showing up for me as the first Google hit when I search for SDS1000X-E datasheet. Apparently even content from official Siglent websites can not be trusted  :-//.
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