| Products > Test Equipment |
| How to calibrate Siglent SPD1000X / SPD3303X / SPD3303X-E series power supplies? |
| << < (20/27) > >> |
| Bad_Driver:
Yes, X is in Hz. Linear looks better than in Log. A schematic would be helpful. oz2cpu, can you be so kind to check the behavior of your 3055 during recording with respect to the time intervals? Siglent should be able to get thinks done as a 25y old HP-DMM.... |
| oz2cpu:
i will be happy to help, please tell me the most easy methode to test/reveal the time interval issue, it is something i did not dig into yet, so i need a little bit for dummies how to :-) |
| Bad_Driver:
Very easy, connect DMM to EasyDMM, settings for faster reading (1 PLC or so), No AutoZero and record some minutes. Export to EXCEL, normalize Time Stamp (I think you must do a division by 1E6 or so to get seconds) and calculate the time intervals between readings. With the SDM3065 the intervals have a deviation of more than 50% from one to the other, with the HP34401 the deviation is about 2%. Than you can try to use external triggering with about 10 Hz to see if there is some improvement. |
| oz2cpu:
i assume i need to input a known signal, with a known repeat freq ? also ethernet and my routers and switches and my pc involved, is not a realtime envoiment and cant be thrusted to the last ms. |
| Bad_Driver:
No input signal can be DC (our SPD maybe). You get only a reading if the SDM is ready. I assume network connection is better than usb, but every kind of connection is fast enough for some hundred bytes per second. You can also try the same with recording to usb-disk as well. |
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