Owner`s manual

Operator manual REX-***R(F)
LISTEM Corporation 42/90
3.7 Beam limiting device operation
1) Locate the position which is wanted to expose to.
2) Settle the SID with the side measuring tape 4.
3) Light on the collimator lamp switch 3) and establish the X-ray exposure range.
4) Adjust the X-ray field to suit the exposure region with the variable switch 1) of collimator.
The distance is divided into 100cm, 150cm and 200cm according to the exposure purpose.
When the X-ray field is adjusted to the scale on the collimator window, the X-ray field values
are shown on the table top according to the distance.
5) To restrain the radiation dose for chest at the minimum, obtain the real size
image and prevent the image from blurring, lengthen the distance between the focus and the
exposure region
6) Perform the exposure and develop the films.
▣ Positioning between the standard axis and the image reception area
When the scale of handle bar's protractor
indicates 0°, the X-
ray projects vertically on
the image reception area.