I just received a Siglent SPD3303C linear power supply that I ordered on Amazon. Tested it with various loads yesterday and pleased with performance. It met all specs and observed the folllowing:
- Interface is intuitive and save/recall easy to do.
- Rotary knob encoder was smooth and can be rotated quickly with minimal lag
- No overshoot on load/noload. Rise time in milliseconds
- RMS noise was under 1 mV RMS
- OCP was implemented in firmware and worked well
- At low currents fan noise was very low and only slight transformer hum
Rotary encoder knob has pushbutton capability but it does not appear to be used according to manual. Anyone found out how to use the pushbutton feature? If I push it in and power on only the digit 5 appears on the display. I wonder what that does?
My unit was older stock with a cal date of June 2022 and latest firmware for Version 1.
From firmware release notes a Version 2 of the hardware was released in September 2022.
Does anyone know what the changes are in V2 and if it affects performance or user options? I still have 30 days to return if V2 is a better product.
Thanks - Roger