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Alignment
Prism targeting should only be used when
the laser cannot be seen, for instance in high
ambient lighting conditions or over very long
distances.
Ensure targeting setting switch is in the right
hand position.
Move the slide switch to the left position.
The green and amber LEDs will flash together
for a few seconds to show the detector has
started Prism targeting.
If the green LED stays illuminated the
Detector is receiving enough light back from
the Reflector. Cover the reflector – if the green
LED goes off then the light being received by
the Detector is coming from the Reflector and
you can now proceed to the Alignment stage.
If the green LED stays illuminated with the
reflector covered then the light received by
the detector is being reflected by some other
object in or around the beam path. Take care
to make sure there are no reflective objects
within 0.5m of the centre of the beam path,
and try Prism Targeting again.
Prism targeting
The amber LED will flash every two seconds if
the Detector is not receiving enough light from
the Reflector. The number of flashes indicate
how strong a signal it is receiving. Using the
direction buttons, move the detector in one
axis until the amber flashes increase. If the
number of flashes stays the same, then keep
going in the same direction. If the number
decreases then reverse direction. Once the
number of flashes starts to increase then keep
going until either:
• The green LED comes on, at which point
cover the reflector as described above
• The amber flashes start to decrease again, at
which point reverse direction for 2 steps and
perform the same process in the other axis
If Prism Targeting has been performed on both
axes and the green LED is still not on then
ensure that the correct number of reflectors
for the range has been used, that the distance
has not exceeded the maximum (120m/394ft)
and that the reflector and detector are parallel
to each other.
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