Page
45Air Techniques, Inc.
Inspection
interval
Action
Daily / before
each use
Clean the PSP, if applicable
Check the PSP for scratches If there are scratches on the surface, take a ho-
mogeneous test image (see Check the PSP with a homogeneous test image),
replace the PSP, if applicable
Keep an eye on the image quality with each X-ray image taken, also refer to
15 1 Poor X-ray image
Monthly Take a homogeneous test image of the PSP (refer to “Check the PSP with a
homogeneous test image”) If scratches or artifacts are visible in the image
that may possibly have an adverse effect on the diagnostics, replace the PSP
Every 3 months Check X-ray system
Take an X-ray image with a test body (not supplied) Check the image for ho-
mogeneity, resolution, contrast and artifacts, refer to Check X-ray system
Check the PSP with a homogeneous test image
Scratches on the surface of the PSP may be visible in the X-ray image and may impair the ability to
diagnose the X-ray images. If scratches are visible in the image that may impair the diagnostics, the
PSP must be discarded.
1. Place the PSP on a level surface at a distance of approximately 30 cm from the X-ray tube
Doing this, make sure that the active side of the PSP faces the X-ray tube
2. Set the exposure time and setting values on the X-ray unit for a molar x-ray image (see “8 2
Configuring x-ray devices”)
3. Scan the PSP with the PSP scanner at high resolution
4. Check the image for homogeneity
5. No scratches visible in the image: PSP can still be used
6. Scratch is visible in the image: discard the PSP
Check X-ray system
To check the X-ray system, take an X-ray image with the test body (refer to “3 3 Special accessories”).
This can be used to check the image produced with the X-ray system for homogeneity, resolution,
contrast and artifacts.
1. Make sure to comply with the instructions for use of the test body and take an X-ray image
with the test body.
2. Read the PSP
3. Check the image for homogeneity, resolution, contrast and artifacts.
4. If errors are visible in the image, contact a service technician
Operation
PSP with scratches
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