stage three, manual alignment
You will now see the manual alignment screen showing anything between 0 and 6%. This is the amount of
received signal with no reflector that the beam is picking up from the environment.
10.
NOW place or uncover
the reflector on the blank wall directly opposite the beam head ensuring there
is a clear path through any obstructions such as structural steels etc.
It is
important
that there is a clear line of sight between the reflector and beam head. The beam must
see at least
200mm
of clear space around the reflector to enable the beam to see the edges of the
reflector to allow successful auto alignment in the following stage.
Once the reflector is in place and visible there should be a big jump in the received signal (AQ). This
means that the head is seeing and receiving a signal back from the reflector. In most cases this will result
in a received signal of over 100%.
As long as there is a received signal of over 40% you can move onto the next stage: Auto Alignment,
No.11.
If the AQ reading is
below 40%
it means the head is not seeing the reflector and will abort Auto
Alignment. The next stage is to manually move the beam to achieve an AQ reading of over 40%, ideally
over 100%. The higher the AQ the quicker it will auto align. This is done by manually moving the x and y
motors to obtain a received signal from the reflector.
In the example below we can see that the reflector is below the eye line of the beam head, so in this
case you would need to lower the angle of the beam (-Y) until you receive an AQ of over 40%.
The beam can be moved on both X and Y axis to a maximum 5 degrees using the
left (x-), right (x+),
up (y+) and down (y-)
keys.
Looking at the reflector
this will move the beam across
the reflector like so...Holding the keys down will quickly scroll through to your desired
position, on release of the button the screen will revert to the actual beam position and
can be seen stepping toward the requested position.
To confirm the beam is seeing the
reflector
covering
the reflector at any time should drop the AQ and prove the beam
is on the reflector.
200mm of clear space from
the edges of the reflector
Manual AQ 136%
X+0.00
° Y+0.00°
Manual AQ 13%
X+0.00
° Y+0.00°
Reflector is lower than the beam head... use -Y to bring the beam onto the reflector
Beam head
Reflector
In the example above moving the y axis
down (y-) results in a greater AQ.
Try and achieve as high an AQ as possible, it must be over
40% to auto align. The higher the AQ the quicker the auto
align, above 100% is good.
Manual
AQ 6%
X+0.00°
Y+0.00°
down
Manual
AQ 110%
X+0.00°
Y-2.26°
down
y+
x+
x-
y-
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