Chapter F - PREVENTIVE MAINTENANCE
F-4 Planmeca Proline CC panoramic x-ray
Technical Manual
When using various focal trough forms or when in cephalostatic mode the exposure time varies.
The selected time can be seen from the x-ray equipment exposure time display and the meas
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ured time must correspond to that within ± 10%. If not, the generator processor must be replaced
and most likely also the keyboard processor. That is because the processor clocks are synchro
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nized to each other and variation in exposure times can only be due to the processor clock fre-
quency alteration that must appear in both processors within 1%. If the time differs from the
selected one because of some other reason, an error indication will always be present.
3 MECHANICAL CHECKS
Refer to the chapter “ADJUSTMENT & CALIBRATION” on page D-1.
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