CPI CMP 200 Series Service Manual page 10

CPI Canada Inc.
1.1.5 Applicable Standards (Cont)
Guidance and manufacturer's declaration – electromagnetic immunity
The VZW2556 series of X-ray generators is intended for use in the electromagnetic environment specified
below. The customer or the user of the VZW2556 series should assure that it is used in such an environment.
Immunity IEC 60601
test test level
Conducted RF
IEC 61000-4-6 150 kHz to
Radiated RF
IEC 61000-4-3 80MHz to 2.5
NOTE 1 These guidelines may not apply all situations. Electromagnetic propagation is affected by absorption
and reflection from structures, objects and people.
NOTE 2 It is essential that the actual shielding effectiveness and filter attenuation of the shielded location be
verified to assure that they meet the minimum specification.
a
Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and
land mobile radios, amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted
theoretically with accuracy. To assess the electromagnetic environment due to fixed RF transmitters, an
electromagnetic site survey should be considered. If the measured field strength in the location in which the
VZW2556 series of X-ray generators is used exceeds the applicable RF compliance level above, the X-ray
generator should be observed to verify normal operation. If abnormal performance is observed, additional
measures may be necessary, such as re-orienting or relocating the X-ray generator.
Use and disclosure is subject to the restrictions on the title page of this CPI document.
®
CMP 200 X-Ray Generator Service Manual
Compliance
level
3 V 3 V
rms
150 kHz to
80MHz 80MHz
3 V/m 3 V/m
80MHz to 2.5
GHz GHz
Electromagnetic environment - guidance
The VZW2556 series of X-ray generators must be
rms
used only in a shielded location with a minimum RF
shielding effectiveness and, for each cable that
enters the shielded location, a minimum RF filter
attenuation of 40dB from 30 MHz to 230 MHz and
47dB from 230 MHz to 1 GHz. (The minimum at 30
MHz is 40dB and the minimum at 230 MHz is
47dB.)
Field strengths outside the shielded location from
fixed RF transmitters, as determined by an
electromagnetic site survey, should be less than 3
a
V/m.
Interference may occur in the vicinity of equipment
marked with the following symbol:
Ch # 901476-01
Pre-installation
Rev. C
1
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