Planmeca Proline EC ceph, Technical Manual

Page: 86 / 210

Chapter D - ADJUSTMENT & CALIBRATION
D-34 Planmeca Proline EC X-ray unit
CEPHALOSTAT ADJUSTMENT
Technical Manual
9.2 Checking the head support position
Press and hold the P key until you have heard two audible signals. The latest used exposure
mode number starts to flash on the main display.
Select the cephalometric exposure mode number 4 with the program selection keys (collima-
tor number 4). The text CPH4 will appear on the main display. The rotating unit and cassette
carriage will move automatically to the correct position for taking cephalometric exposures.
Remove the tubehead covers and cassette carriage covers (see sections “Tubehead covers”
on page H-1, “Secondary slot cover” on page H-1 and “Cassette carriage back cover” on
page H-1).
Place the ceph head support alignment tools in the ear post holders as far as they go (Fig. 37,
1). Rotate the head support to the 90° position.
Look through the opening on the cephalostat cassette holder and the opening on the head
support alignment tools. The fourth primary slot is seen symmetrically if the adjustment is cor-
rect (Fig. 37, 2).
Figure 37
If the fourth primary slot is not seen symmetrically, the head support requires readjustment.
See instruction given in section “Head support adjustment” on page D-35.
P
1
2