Products > Test Equipment
Siglent SPD3303D review
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nidlaX:

--- Quote from: Zbig on March 16, 2017, 06:49:48 pm ---Mine does the same. Perhaps the fan is powered straight from the rectified output to ease on the regulator? Haven't checked, though.

--- End quote ---
Ok, that sounds plausible and I can accept it.

Another issue I've noticed is that my channel 2 is drawing 0.01 A or so when the output is enabled, but not connected to any load. Should I be concerned?

Sent from my ZTE A2017U using Tapatalk

Zbig:

--- Quote from: nidlaX on March 17, 2017, 06:19:43 am ---Another issue I've noticed is that my channel 2 is drawing 0.01 A or so when the output is enabled, but not connected to any load. Should I be concerned?

--- End quote ---

Are we talking the "D" or "S" model? If you have "D", then I definitely wouldn't worry about it, 0.01A being the one least significant digit count. I have the "S" model (1 mA resolution one) and both channels show (different) few mA of current values when enabled but unloaded after cold start. They then drop to few (sub 10) mA after some time, as the thing heats up. It's rather easy to check the manual whether yours still in specs or not (I don't have it on hand now).
Helix70:
Anyone know a way to recover the SPD3303X after a failed firmware update bricks it? Nothing at all on power up now.

I tried the firmware update on advice from Siglent after having front panel lockups. It is under warranty, and Trio are fantastic, sending me a loaner while mine is being fixed, but would like to recover it if it is straight forward.
Zbig:

--- Quote from: Helix70 on March 20, 2017, 01:02:56 am ---Anyone know a way to recover the SPD3303X after a failed firmware update bricks it? Nothing at all on power up now.

I tried the firmware update on advice from Siglent after having front panel lockups. It is under warranty, and Trio are fantastic, sending me a loaner while mine is being fixed, but would like to recover it if it is straight forward.

--- End quote ---

IIRC, you put it in the bootloader mode by holding the rotary encoder pressed while powering up. Then you'll have to choose "bootloader mode" in the supplied software while uploading the firmware file.
tautech:

--- Quote from: Zbig on March 20, 2017, 10:48:26 am ---
--- Quote from: Helix70 on March 20, 2017, 01:02:56 am ---Anyone know a way to recover the SPD3303X after a failed firmware update bricks it? Nothing at all on power up now.

I tried the firmware update on advice from Siglent after having front panel lockups. It is under warranty, and Trio are fantastic, sending me a loaner while mine is being fixed, but would like to recover it if it is straight forward.

--- End quote ---

IIRC, you put it in the bootloader mode by holding the rotary encoder pressed while powering up. Then you'll have to choose "bootloader mode" in the supplied software while uploading the firmware file.

--- End quote ---
For one I updated recently, I had to install the EasyPower PC control utility and install the new FW via that. It seemed the only way mentioned to update the X series PSU's, The process was quite straightforward and painless enough. The X series PSU screen displayed an "updating" message while it was and IIRC another to restart the PSU when finished.
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