1. Then changing values in step mode the size or “gain” of the steps follows between different settings.
E.g. I choose to change the voltage in 0.5V steps (next lowest step size) and then choose to change the current in 250mA steps (next highest). If I then go back to set the voltage again, the step size now is 2V instead of 0.5V as it keeps the setting to the next highest value.
This may be a little surprising, especially then the rotary encoder is used.
Maybe the step size can be remembered for each value, or always be set to the lowest value then entering a new screen?
Yes, I'm aware of that, but if was never implemented. Please create a
new issue for it that is not forgot once again.
2. The indication for the currently selected current range flicker between 500mA and 5A if the current limit is changed with the rotary encoder in the range under 500mA.
I don't know if this is just a graphical fenomen or if the range actual is changing.
You're right. Maybe doesn't looks nice but it just show that autoranging is doing its job! It's happen when current range is set to
Best (default),
Autoranging is ON and without load. When you connect load it will stop switching current ranges from low to high over 0.5 A.
3. I miss the opportunity to simultanly switch both channels on and off with a single press then they are in “normal” uncoupled mode.
You have two possibility to do that when channels are not coupled: using trigger step or put channels in tracking mode. Former allows you to set different output voltage and current, in later case they will be the same.
4. I miss the opportunity to switch on and off each channel with an external signal, e.g. a physical switch or button then you don’t can/want to look at the psu.
Maybe the trigger input can be used?
Yes, you can set PIN1
Function under
System settings (1)... Digital I/O as
Trigger input when channels are in step mode, or you can use
Inhibit. For improved usage of the latest one you need firmware v1.02 (issue
#166).