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| Silent SPD3303D voltage display error |
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| daisizhou:
I have used the Silent SPD3303D power supply for a long time.It is found that it is the CH1 channel, and the voltage shows an offset,CH2 channel is normal. To be precise, when the output is turned on, the CH1 channel will show a voltage offset. 32v gear offset 0.03V, 24V gear offset 0.02V, 14-21V gear offset 0.01V, 0-10V gear display is accurate I don't know how to adjust it to make it look accurate. If you know how to adjust please let me know, thanks for your help |
| tautech:
The readout values allow for a range of inaccuracy: From the C model Service manual: https://siglentna.com//wp-content/uploads/dlm_uploads/2019/08/SPD3303C-Service-Mannual.pdf Output voltage setting Output/Readback voltage limits Set Display 0 mV -20 mV ~ 20 mV 100 mV 79.5 mV ~ 120.5 mV 1 V 0.975 V ~ 1.025 V 10 V 9.93 V ~ 10.07 V 25 V 24.855 V ~ 25.145 V 30V 29.83 V ~ 30.17V |
| daisizhou:
Thanks for your reply, do you mean normal? But my CH2 channel is very accurate.I remember that CH1 was accurate at first, and now it shifts with every use. In general, do you think this is a normal error? |
| tautech:
--- Quote from: daisizhou on September 16, 2022, 10:44:04 am ---Thanks for your reply, do you mean normal? But my CH2 channel is very accurate.I remember that CH1 was accurate at first, and now it shifts with every use. In general, do you think this is a normal error? --- End quote --- I do as it is within the limits of the C model readout error. You might consider reading the X/X-E Service manual Calibration chapter P21 https://siglentna.com//wp-content/uploads/dlm_uploads/2019/08/SPD3000X-Series-Service-Manual.pdf I wouldn't recommend following the procedure until we know it can work with your D model but this late on a Friday we cannot know until Siglent return to work on Monday. Did you get a CD with the manuals with your D model ? Maybe it has the D model Service manuals. |
| daisizhou:
I did not find a specific service manual for SPD3303D,I only found service manual for SPD3303X, it may be common to 3303D https://tienda.logicbus.com.mx/assets/PDF/238/SPD3000X-Series-Service-Manual.pdf |
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