Products > Test Equipment
Siglent SDS2000X HD, missing Features and Bugs
TopQuark:
--- Quote from: tautech on April 08, 2023, 07:41:10 am ---
--- Quote from: TopQuark on April 08, 2023, 07:13:46 am ---Probe readout pin customisation
I recently got myself a couple of Cal Test CT4200 x1 probes, they have a readout pin connected to ground with 1k ohms. When I plug the probe in, the scope recognises the probe is plugged in, but sets the input attenuation setting to 10x.
I measured the original probes that came with the SDS2kX HD (SP5050A), and the resistance between readout pin and ground is 11k ohms.
The scope recognises everything between a short to 49k ohms as a 10x probe being plugged in.
While there don't seem to be standards stating the readout pin resistance vs attenuation setting, perhaps the scope can let users set custom resistance ranges to match the probe attenuation setting? (assuming the readout pin resistance is read with an ADC)
As it stands, the scope's behaviour may lead to erroneous readings with certain probes. I know this is an edge case, but point still stands.
--- End quote ---
100%
Unfortunately the only sense probes properly recognised are 10x in 2000 class DSO's. :-[
I've thrown mud about this and it seems only the more upmarket models get the attenuation ratios correct. :horse:
For other than 10x you need set attenuation manually. ::)
--- End quote ---
I think temperance is referring to this.
Also there's also some weirdness to how the scope remembers the attenuation settings. It sometimes forgets that the x10 probe is plugged in.
1. Set the channel attenuation to x1
2. Plug in a 10x probe, the scope will adjust the channel attenuation setting to 10x
3. Enter Bode plot mode, you don't even need to run a plot, just exit the bode test app
4. The channel attenuation will fall back to x1, even when the x10 probe is still plugged in.
KungFuJosh:
--- Quote from: tautech on March 21, 2024, 12:44:15 pm ---
--- Quote from: kripton2035 on March 21, 2024, 12:34:05 pm ---it was some posts from me ...
when you hit the default button, the connected probes does not get recognized.
the original probes are set as 1x instead of 10x
after "default" if you unplug then replug the probe(s) it then get the good 10x
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Every Siglent auto probe detect DSO works fails this way.
--- End quote ---
There, I fixed it for you. 😉 That's an annoying bug, that's been reported on every Siglent scope with probe detection.
Grandchuck:
Latest lockup occurred trying to save a mask:
KungFuJosh:
--- Quote from: Grandchuck on March 21, 2024, 01:40:18 pm ---Latest lockup occurred trying to save a mask:
--- End quote ---
Does the lockup occur if you disable coordinate labels?
Grandchuck:
--- Quote from: KungFuJosh on March 21, 2024, 01:48:07 pm ---
--- Quote from: Grandchuck on March 21, 2024, 01:40:18 pm ---Latest lockup occurred trying to save a mask:
--- End quote ---
Does the lockup occur if you disable coordinate labels?
--- End quote ---
Are you suggesting to turn off the labels before attempting to save?
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