Finally, I was able to complete the u Tracer this week.I performed all the modifications to upgrade it from 300V to 400V. I have attached some pictures which may be of interest to other constructors so feel welcome to place this on your testimonials page.
Construction had to wait until I completed my civil engineering diploma.
The GUI was connected through an RS232 to USB adapter with no problems whatsoever.
I really liked the step-by-step 'build and calibrate' process in the construction manual.
The u Tracer PCB is installed in a plastic modem enclosure.
I put connections at the rear for external heater as well as fuses and the essential serial connection.