5.4 Using the laser
Take precautions to prevent anyone from looking
directly into the laser beam.
Wear appropriate eye protection.
The sender unit features a powerful laser to assist angle
adjustment. The laser is used to confirm that the upper margin of
the PA system dispersion reaches the design target - for example
the seating at the rear of an auditorium.
1. On the «Home» screen, «LASER» is displayed at the bottom
right.
2. Press the right-hand button once to switch the laser on.
↳Pressing the button a second time will put the laser into
flashing mode, which can be useful for locating the beam in
a bright location. Pressing the button a third time turns the
laser off.
The on/off and flashing mode statuses are indicated by a
corresponding permanent or flashing laser icon to the left
of the «LASER» item
Þ
.
5.5 Application example
To take an example: ArrayCalc indicates a frame angle of –3.6°
from vertical.
1. Using ArraySight to measure this angle, you raise the first
array to its operating height and then check the meter unit
screen.
2. The figures displayed settle as the meter compensates for the
swing of the array. If the settled display shows +0.5°, you
then use the hoists to lift the rear or lower the front of the
array. Make small adjustments and allow the meter unit to
calculate the new angle. Continue to make adjustments until
you achieve the angle of –3.6°.
3. Once the first array is complete, disconnect the meter unit from
the first sender unit and reconnect it to the sender unit of the
second array.
4. Repeat the procedure, starting with resetting the angle to zero
for the second sender unit. Raise the second array, check the
angle and adjust the angle as necessary.
5. If subsequent re-adjustment of the first array is required the
meter unit can be re-connected to the first sender unit and the
correct offset will be recalled.
d&b ArraySight Manual 1.7 en
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