Planmeca Proline CC, Technical Manual

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Chapter B - KEYBOARD FUNCTIONS & MODES
Planmeca Proline CC panoramic x-ray B-15
Technical Manual
3.8 Panoramic/cephalostatic setup
The equipment software has been readily equipped with the functions needed for cephalostatic
operation. In the service mode it is determined whether the equipment is equipped with a cepha-
lostat. Of course the cephalostatic locking coils have to be added, the special cassette holder
assembled, adjustments made etc. to gain the cephalostatic operation. This chapter only
describes the keyboard operations needed when changing the equipment to a cephalostatic one.
Press the CTL-key and then press either the sec- or sec+ key to change the mode of operation.
The new state of operation is indicated for a few seconds in the main display, PA for panoramic
operation and CE for panoramic/cephalostatic one.
3.9 Tube type programming
A possibility has been provided to be able to use two different types of X-ray tube in the equip-
ment. The possible types are Comet XL-90-5°/0.6B and Toshiba D-052SB. The main difference
is the size of the focal spot of these tubes: 0.6 x 0.6 mm and 0.5 x 0.5 mm correspondingly.
Because the filament characteristics and the loading curves of the tubes are not the same, the
type of the X-ray tube in the tube head must be entered into the system to ensure proper opera-
tion. Also, if the Toshiba type is used the jumper J3 (see picture below) on the generator board
must be placed in position “T” and with Comet types in position “C”. Change fuse F7 to 4 A.
Press the CTL-key and press and hold the segment key A, B or C for 4 seconds, the tube fila-
ment definition will start. The display will now show Fd.
To prevent from accidental programming the segment key has to be held down for 4 seconds
before it operates.
CAUTION Always program the tube type into the system when the generator processor board or the
tube head is replaced. Even if the new tube type is the same than the previous one, the fil-
ament characteristics are not exactly the same and must be reprogrammed. Failing to do
this may damage the tube head.
Pressing down the exposure key after the tube type programming starts the generator with 70 kV
and 2 mA (the system adjusts for these values automatically). The system regulates the filament
voltage to get the 2 mA tube current accurate, changes to 3 mA and so on till all tube current val-
ues up to 12 mA have been adjusted. After the learning procedure the generator stops and the
tube type display stops blinking to indicate that the system is now ready for normal operation. If
the exposure switch is released before the procedure is complete (about 2 minutes), it will be
continued from that point on when the switch is operated again. If the power was switched off the
procedure starts from beginning. When the tube filament definition is done the exposure time dis-
play will indicate “C.6” for Comet 0.6 tube and “t.5” for Toshiba tube.
CTL
EXP
hold until finished
hold for
4 seconds
B
A
D
E
C
P
CTL