By default, the XY chart should auto range. It is possible that other properties on your view could be affecting how your XY chart looks. I would need to see your view as a whole before making conclusions. You can always reach out to support and have us take a closer look with you that way.
If you want to use your own scaling instead, you can always bind your Y axis' max property to your data source and use a script transform to detect the max value in that dataset. From there you would just add 3000 to that value.
Here is an example of the script I used to test this:
The lambda confuses me. I had to relearn it multiple times. I think I need to start using lambda more to retain it.
I think lambda is a kind of shorthand to look at all args.
I read lambda is like an anonymous function.
Receives x, returns x['process_temp'] from the value in this example.
Thanks