English to Italian Tech/Engineering Construction / Civil Engineering livella laser

The laser beings Auto-Levelling.
During Auto-Leveling the LED flashes GREEN, the rotary laser (Figure Ⓐ①) flashes, the Plumb Up Dot laser (Figure Ⓐ②) flashes, and the Plumb Down Dot laser (Figure Ⓐ③) is steady (if available).
When the Auto-Levelling procedure is complete, the LED turns solid GREEN, the rotary laser rotates at the last used RPM setting, the Plumb Up Dot laser is steady, and the Plumb Down Dot laser (if available) remains steady.

Si sta parlando del processo di autolivellamento di una livella laser rotante autolivellante.