
V5.0_2022-04-26
PROGNOST B Instructions for use
5014-0-1002
PROTEC GmbH & Co. KG, In den Dorfwiesen 14, 71720 Oberstenfeld, Germany
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NOTE
Because of the protection functions of the PRS 500 B it is only possible to move the
tube down
beside
the table to reach the panel height in the lateral detector holder.
If the tube moves too high within the alignment it is
not
possible to move the tube
back down.
In this case the whole tube column must be pushed beside the table and the tube
must be moved down again.
4.2.2
Operation at vertical wall stand
4.2.2.1
Anti-collision sensor
The anti-
bright surfaces. It is
only
suitable for detecting and anti-colliding with the table top. The distance
between the sensor and the table top is measured internally by this sensor and a signal is released
when the distance is shorter than the previous detecting distance adjustment.
4.2.2.2
Adjusting the X-ray unit to the centre of the Bucky/Grid Entity on the wall stand
(horizontal central beam)
•
By pressing the button for rotation on the tube head, the brake for the rotation will be released.
•
Turn the X-ray unit to the wall stand.
•
Set the Bucky/Grid Entity on the wall stand to the height for the patient.
4.2.2.3
Adjustment of the source to image-receptor distance (SID)
NOTE
The display shows the correct SID only when making orthogonal exposures on table
or on wall stand. If you make exposures beside the table top or oblique exposures
the displayed value is not correct. A tape measure or similar is required to measure
the SID for these exposures.
•
Release the brake for the longitudinal movement of the column by pressing the button for
horizontal brake. Set the required film focus distance (SID) which will be used for the exposure.
The display shows the current SID distance.
4.2.2.4
Adjusting the light/X-ray field
•
Press the button on the control unit to release the brake for adjusting the height of the X-ray tube
unit (see chapter 3.3.1 Control Unit).
•
Set the X-ray unit to the desired height and align the X-ray tube unit with the Bucky using the
centering light of the light sensing device.