Mask Mode using the Remote Control‘s menu
§ Press and release the button at the Standard
Display and select >>Mask Mode<< by pressing the
down arrow button once.
§ Press and release the button, the
mask symbol occurs.
§ For selecting the side, press and release
one of the arrow buttons.
§ When all areas have been set, press
button to store the mask sector selection.
The RC402N display indicates which side of the laser
the beam has been electronically turned off.