Instruction manual

16. Automatic internal
The CF ZOOM AL has several automatic functions and features which at first glance
functions may not be noticed. However, they serve to add functionality to the projector, and
to assist in extending the serviceabilty of the unit.
thermal protection
A thermal sensor in the body of the fixture protects it against overheating.
The thermal sensor operates by removing voltage to the lamp if the ambient tempe-
rature rises above a preset maximum due to either less than ideal air circulation
around the fixture or in the event of cooling fan failure.
automatic realignment
An internal 4 point encoder system allows the CF ZOOM AL to return to its correct
position in case the unit is accidentally knocked out of alignment whilst operating.
This is particularly useful if the projector is to be mounted on the floor in a position
where the performer or artist may accidentally bump the unit.
NOTE: this facility may be deactivated if desired (see section 11 ‘Display panel func-
tions’).