Do Ambrell systems require any special calibration?

Today's systems that Ambrell provides do not require any calibration they are all digital...

Today's systems that Ambrell provides do not require any calibration they are all digital which means that there are no potentiometers or adjustment knobs inside the power supply at all. We used to have systems like this in the past where there would be enough creep in the power supply output that you would need to calibrate after a few years. But power supplies of today, they are digital and do not require any calibration. Very similar to your phone that you hold in your pocket. You know there is no calibration or readjustment of the phone that is required. Everything is digital.