Midmark Preva - Taking an X-Ray

Preva Dental X-ray System User Manual, 00-02-1576, Revision ZA1
18
Taking an
X-ray
1. Turn the power switch, located at the upper right of the Control Unit, to the “On”
position. The Ready Indicator on the front of the Operator Panel, (Figure 2), will
light.
2. Verify that the unit is set for the correct Image Receptor Type. (The icon for the
currently selected Image Receptor Type will be illuminated.) To change the
Image Receptor type, press the Image Receptor Type button until the correct
Image Receptor Type is selected.
3. Verify that the system is set for the appropriate Patient Size. The icon for the
currently selected Patient Size is illuminated. To change the Patient Size, press
the Patient Size button until the correct Patient Size is selected.
4. Verify that the unit is set for the Tooth to be imaged. The icon for the currently
selected Tooth is illuminated. To change the Tooth Selection, press the Tooth
Selection button until the correct Tooth is selected.
5. If desired, the preset exposure settings selected in steps 2-4 can be adjusted
before making an exposure. (Skip this step when using the default exposure
settings.) While exposure settings are being adjusted, the Tooth Selection,
Image Receptor Type, and Patient Size buttons will be turned off. Use the right
arrow to select the exposure setting to be adjusted. Use the up and down
arrows to adjust the value.
6. Position the Tubehead for the patient’s X-ray using standard accepted
positioning procedures.
•
Do not operate the device in the significant zone of
occupancy. The operator must remain at least 2 meters
(6.6 feet) away from the focal spot and out of the path of
the X-ray beam.
•
In locations in which the patient is isolated from the
operator during X-ray exposures, it is the owner’s
responsibility to provide for audio-visual communication
between them.
7. Take the X-ray. Press and hold the Exposure button until the audible signal
stops and the Radiation Indicator goes off. Releasing the Exposure button or
coil-cord hand switch at any time will immediately terminate the exposure.
It is recommended that the operator exit the operatory
when using the coil-cord handswitch. To follow
established safety practices and comply with
regulations, the technique factors must be visible to the
operator from the remote location.
8. Return the Tubehead to the storage position.
Do not strike the tubehead on anything when returning it to
the storage position.