Products > Test Equipment
Siglent SPD3303D review
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leonerd:
As promised earlier, here's a couple of quick mockups of what I think would improve the UI a bit. It shows both setting and readout value all the time. The first image shows Channel 1 turned on, giving both the setting and readout values. Channel 2 is switched off.

The second image shows the display during editing - someone has rolled the setting wheel to adjust the voltage level. Additionally, when you're editing a value, you're editing one digit at once - the idea with this UI is that those left/right buttons would move the cursor left or right.

The Korad KA3005P is a good example of this - that lets you adjust the voltage in units of 10V, 1V, 0.1V or 0.01V. It applies wraparound to the higher digit. E.g. if you're currently editing in 0.1V steps then rolling the wheel moves from 2.80V, 2.90V, 3.00V, 3.10V, ...
leonerd:
Another idea, if there's sufficient spare CPU bandwidth and refresh rate on the display, is to add an analog bargraph to the readout sections. This way, you could easily see the actual voltage / current level as a fraction of the target setting. The intention here would be that the bargraph is updated a lot more frequently than the rest of the screen - ideally something around 10 to 20 frames/sec if the measurement hardware and management CPU can manage it.

The bars here are currently green, but if the measured reading too high; say, more than 1% over the set target, they'd turn red.

There aren't many programmable power supplies that have an analog bargraph to their readout - I think this could be a really nice addition here, and quite a distinguishing factor.

I've also adjusted sizes a bit, making the Set area smaller, to give the Read area some more space.
Siglent America:
Thanks for your suggestions Leornerd.
I will forward your ideas to Engineering with the suggestion that we display both programmed and actual output levels at the same time.
leonerd:
Excellent - thanks "Siglent America". Feel free to point people in my direction if you want more clarification on the idea, or if something's unclear.

And thanks for taking the time to reply; I know some companies wouldn't even bother. It's good to see someone's listening :)
Siglent America:
Hi Frank.

I sent your suggestion and drawings to Engineering and received this response from the VP of Engineering- below.
Thanks again for your good suggestions!
Steve
<<<<

Hi Steve
 
    The guy's suggestions are  good. I very like this kind of feedback. I will remember his name,Leonerd
 
    The suggestion of improve the control way of setting knob, we had implemented the similar way as he suggesed in new SPD3000X power supply.
    About suggestion of display the set value and actual output value in the screen at same time, we think it is a good idea. I had discussed with Owen and our enigneer , and we will implement it in the next SPD3000X firmware.
 
    Very thank you for monitoring the EEVblog and forward this kind of feedback and some review video and  big issues to us. It is a very good commnication way with customer, and can help we improve our products.
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