6
QSG Diode Pointer Ver 2.1
a Novanta company
Diode Pointer Quick Start Guide
Adjustment (Continued):
11.
Using safety precautions, reposition the thermal card to a new location on the brick, then move the brick
to the far field (3-10 m). Fire the CO
2
laser again at low power (approximately 10-20 watts) until you get a
good burn image on the thermal card and observe the diode pointers coincidence with the beam. Insert
the two Allen wrenches (included) into the two far field hex head(s). Adjust the far field so that the red
diode beam is centered on the CO
2
burn image as accurately as possible. Average out any beam asymme-
tries. Turn the laser off.
12.
Reposition the thermal card on the brick as you did before, and move them to the near field proximity
to the laser as you did in the prior steps. Power on and fire the CO
2
laser again at low power (approxi-
mately 10-20 watts) until you get a good burn image on the thermal card and observe the diode point
ers coincidence with the beam. You should have good coincidence by now. If not, see the above Im-
portant note, before proceeding to the next section.
B
Far field
Approx.
3-10m
Important
Note:
Since adjusting the beam affects both near and far fields
in the same direction, you may need to overcompensate
towards the opposite side of center in one field and then
bring both back to center in the other.
3-10 M
Note:
If the adjustments above have not brought your beam
into coincidence, a larger or coarse adjustment may be
needed.
Far field distance
adjustment screws moves the
beam left and right.
13.
Overcorrection (overcompensating) example: Using the near field screws
one can shift the beam down and to the left. See the beam moved from
the upper left hand corner of the beam down to the center.
