12
Targeting explained
When the beam detector is set to ‘targeting’
it is automatically switched to full power. The
purpose of targeting is to adjust the detector
by panning and tilting until the beam shines on
the refl ector which then refl ects it back.
Progress in targeting is indicated by two LEDs:
no LED illuminated if beam hits outer part of
the refl ector or no part of the refl ector
red LED fl ashes if the centre of the beam falls
in the area shown as a light ring in Fig 10b. The
nearer the centre the quicker the fl ash rate.
the amber LED fl ashes at a constant rate
when the centre of the beam hits the area
shown in solid white in Fig 11b. Movement
of the beam away from the centre to the
boundaries of the dark area will cause the
red LED to fl ash again.
Fig 9a
Fig 9b
t
Fig 11a
Fig 11b
Fig 10a
Fig 10b
