Products > Test Equipment

Siglent SDS1104X-E noisy fan replacement

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balnazzar:
And consider that I work regularly in a lab with many scopes, multimeters and AWGs (~20 stations, mainly Siglent stuff, but some old Agilent/HP things too).

My 1104x-e would be by a far stretch the noisiest device in there.

tautech:

--- Quote from: balnazzar on October 20, 2022, 08:42:17 pm ---
--- Quote from: coppice on October 20, 2022, 08:09:40 pm ---
Is there something seriously wrong with your notebook? I wouldn't call the SDS1104X-E noisy by test equipment standards, but those standards are pretty low. I have an X220 beside the scope right now, and the scope completely swamps the notebook.


--- End quote ---

It's something in between a hair dryer and a vacuum cleaner. I regularly use SDS5000s and they are *much* more silent than the 1104x-e.
--- End quote ---
SDS6000A are even quieter again !  :)


--- Quote ---From my experience with small fans, if you run them at 9V rather than 12V, the difference in airflow and static pressure won't be dramatic, but the difference in acoustical noise could be substantial.
--- End quote ---
Actually with all the concern over 4ch X-E fan noise I'm surprised no one has done a fan controller PCB with a temp sensor, picking supply from the fan header and supplying the fan from the controller PCB.

What would ppl pay for such a controller ?

BillyO:

--- Quote from: balnazzar on October 20, 2022, 08:45:11 pm ---Now I'm really thinking that maybe I got a defective 1104x-e specimen.

--- End quote ---
Does it vibrate at all?  I once had a PC power supply that had a fan with a small piece missing from one blade.  It made enough vibration that there were strange sounds coming from nearly everything in the PC.

BillyO:
I just did a little test.  Turned everything off in the lab then did a sound test on the UNI-T and the Siglent.  The UNI-T was 6dB louder than the Siglent.  That is quite a bit.  The Siglent was just under 3dB louder than the Lenovo X230 notebook with the X230 blowing as hard as it could.  So it is noticeably louder than the notebook, but very much quieter than the UNI-T.  The UNI-T sound is not only louder but has more high frequency noise so it even more annoying.

Anyway, I guess I'm just used to working in noisy environments as the noise it makes is generally not noticeable to me when things are normal (lots of stuff blowing).  Maybe I'm going deaf.

balnazzar:

--- Quote from: BillyO on October 20, 2022, 10:09:09 pm ---
--- Quote from: balnazzar on October 20, 2022, 08:45:11 pm ---Now I'm really thinking that maybe I got a defective 1104x-e specimen.

--- End quote ---
Does it vibrate at all?  I once had a PC power supply that had a fan with a small piece missing from one blade.  It made enough vibration that there were strange sounds coming from nearly everything in the PC.

--- End quote ---

It doesn't vibrate at all.

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