Ralco R 221 ACS DHHS Series, Инструкция по эксплуатации

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MTR 221 ACS - MTR 221 ACS DHHS
MANUALE ISTRUZIONI / INSTRUCTION MANUAL
O
PTIONAL
I
TEMS
214
Model R 221 ACS - R 221 ACS DHHS
MT
R
2
21
ACS
-
MTR
2
21
AC
S DHH
S - Optio
nal Ite
m
s
The collimator has two lasers which serve for the
optical definition of the prefixed SID. The lasers
are mounted behind the front panel and they are
classified as Class 1 (1 m W - wavelength = 645
mm, +/- 10 nm). Two laser lines must measure
60 cm (+/-1) at 1 m (+/- 0.5 cm) and projected at
10 cm (+/-1) from the centre of the light/X-ray
field. The projection of a single line signifies that
the two lines overlap and consequently the
lasers are correctly focussed at the set SID,
which can be adjusted from 90 to 200 cm. The
projection of two laser lines signifies the SID
value has not be entered correctly. See fig.
Laser Line .
Laser Adjustment
• Remove part of the cover to access the point
of adjustment, see Chapter- C
OVER
R
EMOVAL
.
• The line is to fall on a perpendicular cross-
line on the plastic anti-dust panel near the
collimator controls, see
Fig. Laser Line.
• Adjust the position of the line by rotating or
moving the base of the laser system.
• To rotate the laser system, loosen the
Allen screw A , see Fig. Laser
Adjustment.
• Tighten the Allen screw when the laser
beam falls on or is parallel to the
bisector line drawn on the anti-dust
panel.
• Adjust the length of the laser line by screw-
ing or unscrewing the screws B. See Fig.
Laser
Adjustment.
RO 587/1 Two lasers forming a single line at 1-meter SID: Class 1
C
AUTION
: C
LASS
I
LASER SYSTEM DO NOT
STARE INTO THE BEAM
.
D
O NOT APPLY EXCESSIVE FORCE TO
THE SCREW
. T
HE LASER SHELL IS IN
PLASTIC AND EXCESSIVE PRESSURE
COULD CRACK THE PLASTIC AND
POSSIBLY SHORT CIRCUIT THE LASER
.
Fig. Laser Line
Fig. Laser Adjustment
Fig. Laser Alignment