Planmeca Proline EC ceph, Техническое руководство

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Chapter B - KEYBOARD FUNCTIONS & MODES
B-8 Planmeca Proline EC X-ray unit
SERVICE MODE KEYBOARD FUNCTIONS
Technical Manual
Sector C indicator light
The sector C indicator light is used to indicate the cassette holder carriage end (cephalomet-
ric) point limit sensor operation. When the sensor is active (magnet on the sensor) this light is
on. (Only in Planmeca Proline EC Pan/Ceph X-ray unit)
Return key indicator light
The return key indicator light is used to indicate the primary slot limit sensor operation. When
the sensor is active (something in the sensor slot) this light is on. When operated by the motor
movement the active time of the sensor is rather short and is not necessarily always visible on
this indicator. (Only in Planmeca Proline EC Pan/Ceph X-ray unit)
Focal trough positioning keys
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 move-
ments 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.
CAUTION 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!
CAUTION When operating the layer adjustment motor be sure that nothing gets between the
moving handles and the groove ends.
kV keys and display
The kV display indicates the selected kV - value (60 - 80 kV) of the X-ray tube.
NOTE 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.
mA keys and display
This display indicates the selected mA - value (2 - 12 mA) of the X-ray tube.
NOTE During an exposure in the service mode this display does not indicate the selected
mA-value but the actual mA-value measured from the X-ray tube.
With the minus (-) key the mA - value can be decreased in steps of 1 mA. When kept down for
more than 0.5 seconds an auto-repeat function activates.
With the plus (+) key the mA - value can be increased in steps of 1 mA. When kept down for
more than 0.5 seconds an auto-repeat function activates.
mm
kV
mA