Specifications

4.0 ADJUSTMENT AND ALIGNMENT PROCEDURES
4.1 FIELD PROJECTION LAMP AND MIRROR ADJUSTMENT
These tests must be performed when the field projection lamp is altered from it’s original
position or replaced. These tests must also be performed if the original mirror angle has
been altered and if any edge of the developed X-Ray image is outside of the 30.5 cm x
30.5 cm @ 100 cm tolerance marks as defined in Step 3.2.
4.1.1 Steps 3.1 through 3.2 should be carefully reviewed or repeated prior to a lamp or
mirror adjustment attempt. This is particularly important if only a single testing
indicates a failure to meet the requirements defined in Step 3.2.
4.1.2 The collimator position, and the developed X-Ray film must remain undisturbed
from the position defined in Steps 3.1 through 3.2.
4.1.3 Remove the rear cover and the lamp housing heat shield.
WARNING! THE LAMP AND HEAT DEFLECTORS MAY BE HOT ENOUGH TO
CAUSE SEVERE BURNS. DO NOT TOUCH ANY OBJECT IN THE LAMP
AREA WITH BARE SKIN.
WARNING! THE INTENSITY OF THE LIGHT OUTPUT IS SUFFICIENT TO
TEMPORARILY IMPAIR YOUR VISION IF ALLOWED TO ENTER THE EYES
DIRECTLY. MAINTAIN A POSITION IN WHICH YOU CAN SEE NEITHER THE
FILAMENT WHEN IT IS OFF, NOR ALLOW LIGHT TO DIRECTLY ENTER
YOUR FIELD OF VISION WHEN IT IS ON.
4.1.4 If the developed X-Ray image (steps 1 through 9 in section 3.2) is off-center in
the longitudinal direction, loosen the two screws securing the lamp housing.
4.1.5 Use a pair of long nose pliers to move the lamp housing slightly until the light
field has shifted to a position that is centered to the developed X-Ray image in
the longitudinal direction. Tighten the two screws securing the lamp bracket.
4.1.6 If the developed X-Ray image (steps 1 through 9 in section 3.2) is in error in the
cross-table direction, adjust the angle of the mirror (using the knurled knobs as
shown in Figure 4.2) until the light field has shifted to a position that is
centered to the developed X-Ray image.
4.1.7 Repeat steps 1 through 9 in section 3.2 to confirm the results of the above
adjustment.
4.1.8 Tighten the lamp bracket screws and replace the rear cover.
November 2005 ( 4 - 3 ) Linear MC150-C Collimator