Ralco R 221 ACS DHHS Series, Инструкция по эксплуатации

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MTR 221 ACS - MTR 221 ACS DHHS
MANUALE ISTRUZIONI / INSTRUCTION MANUAL
C
OMPLIANCE
V
ERIFICATION
98
Model R 221 ACS - R 221 ACS DHHS
MT
R
2
21
ACS
-
MTR
2
21
AC
S DHH
S - Compli
ance V
erification
C
ROSSHAIR
A
LIGNMENT
C
HAPTER
- A
DJUSTMENTS
,
PARAGRAPH
C
ROSSHAIR
A
LIGNMENT
.
L
IGHT
F
IELD
I
LLUMINATION
I
NTENSITY
a) When a light field simulating the X-Ray field is used the illumination provided at 100 cm.
cannot be less than: 160 lux [(21 CFR 1020.31 (d) (2) (ii)].
b) Place the Focus of the X-Ray tube at 100 cm. from the table top were the light field as been
projected. Open the collimator's shutters to assure that each quadrant of the light field is
larger than the measuring area of the photometer.
c) Check that the voltage specified by the manufacturer is applied to the lamp, make certain
that all surfaces in the light beam are clean and unobstructed.
d) Place a photometer capable of reading up to 160 lux in the centre of each of the four
quadrants of the light field.
e) Turn on the light beam and read the light intensity, subtract to it the ambient lighting,
previously determined.
f) Verify that the average illumination is higher than 160 lux.
g) Verify that the contrast ratio is performed between two points:
• The first point at 3 mm outside the edge of the light field.
• The second point at 3 mm inside the edge of the light field.
These measurements are to be performed with the probe of the lux metre set at 1 mm
aperture.
h) Record the measured values including all data regarding the instrument and voltage
employed.
EMC C
OMPLIANCE
The ME Equipment is intended to be used in the PROFESSIONAL EM ENVIRONMENTS.
W
ARNING
T
O ASSURE THAT ACCESSORIES
,
TRANSDUCERS AND CABLES THAT CAN
AFFECT THE EMISSIONS OR IMMUNITY OF THE ME EQUIPMENT
,
ACCESSORIES
,
TRANSDUCERS AND CABLES ARE CHOSEN THAT WILL ALLOW THE
ME EQUIPMENT
TO CONTINUE TO MEET THE EMISSIONS AND IMMUNITY REQUIREMENTS OF THIS
COLLATERAL STANDARD
.