Planmeca Proline CC Technical Manual page 21

Table 2: Meaning of keys and displays in the service mode, short-form
KEYS AND
DISPLAYS
kV
mA
Main display
Patient position forward/backward keys
°
mm
CAUTION
CAUTION
kV keys and display
NOTE
kV
Technical Manual
kV setting keys are used to change the kV-value.
The display indicates the selected kV-value. During an exposure
the display indicates the actual kV-value measured from the X-ray
tube.
mA setting keys are used to change the mA-value.
The display indicates the selected mA-value. During an exposure
the display indicates the actual mA-value measured from the X-
ray tube.
Exposure time display shows the selected type of the X-ray tube.
The main display in the upper left corner normally displays the tube head temperature. However,
if the system has detected an error the main display indicates the error number occurred. The
error is cleared by pressing CTL-key and the temperature display reappears. Also, similarly to
the normal mode, if the tube head temperature exceeds 60 °C the temperature display blinks and
the exposures are not allowed and if it is not possible to make a new exposure due to the X - ray
tube cooling characteristics the blinking count down time is displayed.
When the CTL-key is pressed (the CTL key indicator light is on), the potentiometer signal of the
cephalostat soft tissue light is shown on the display.
The minus (-) key is used to switch on the positioning lights and to move the patient forward
(focal trough backward) as it is done in the normal mode. The rotation and cassette movements
are not activated in the service mode.
The plus (+) key is used to switch on the positioning lights and to move the patient backward
(focal trough forward) as it is done in the normal mode. The rotation and cassette movements are
not activated in the service mode.
To allow the seek of the limit sensor in the service mode there is no end stop before the
mechanical end. The motor shall not be driven against the ends to prevent it from being
damaged!
When operating the layer adjustment motor be sure that nothing gets between the moving
handles and the groove ends.
The kV display indicates the selected kV - value (60 - 80 kV) of the X-ray tube.
During an exposure in the service mode this display does not indicate the selected kV-
value but the actual kV-value measured across the X-ray tube.
With the minus (-) key the kV - value can be decreased in steps of 2 kV. When kept down for
more than 0.5 seconds an auto-repeat function activates.
With the plus (+) key the kV - value can be increased in steps of 2 kV. When kept down for more
than 0.5 seconds an auto-repeat function activates.
Chapter B - KEYBOARD FUNCTIONS & MODES
FUNCTION
Planmeca Proline CC panoramic x-ray B-7
FOR DETAILS,
REFER TO
"kV keys and display" on
page B-7
"mA keys and display" on
page B-8
"Exposure time display"
on page B-9