Philips Avalon CTS M2720A, Руководство по обслуживанию

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Electromagnetic Compatibility (EMC) Specifications 10 Specifications
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Electromagnetic Compatibility (EMC) Specifications
The Electromagnetic Compatibility (EMC) specifications in this chapter supplement those given in the
Instructions for Use .
Emissions and Immunity
The product is designed and evaluated to comply with the emissions and immunity requirements of
international and national EMC standards.
The EMC standards state that manufacturers of patient-coupled equipment must specify immunity levels
for their systems. See Tables 1, 2 and 3 for this detailed immunity information. See Table 4 for
recommended minimum separation distances between portable and mobile communications equipment
and the product.
Immunity is defined in the standard as the ability of a system to perform without degradation in the
presence of an electromagnetic disturbance.
Caution should be exercised in comparing immunity levels between different devices. The criteria used for
degradation are not always specified by the standard and can therefore vary with the manufacturer.
Electromagnetic Immunity
The M2720A (referred to in the following sections as the ‘device’) is suitable for use in the specified
electromagnetic environment. The user must ensure that it is used in the appropriate environment as
described below.
In this table, U
T
is the a.c. mains voltage prior to application of the test level.
Table 1
Immunity
Test IEC 60601-1-2
Test Level
Compliance Level Electromagnetic Environment Guidance
Electrostatic
discharge (ESD)
IEC 61000-4-2 ± 6 kV contact
± 8kV air ± 6 kV contact
± 8kV air Floors should be wood, concrete, or ceramic tile. If floors are
covered with synthetic material, the relative humidity should be
at least 30%.
Electrical fast
transient/burst
IEC 61000-4-4 ± 2 kV for power supply lines
± 1 kV for input/output lines ± 2 kV for power supply lines
± 1 kV for input/output lines Mains power quality should be that of a typical commercial and/or
hospital environment
Surge
IEC 61000-4-5 ± 1 kV differential mode
± 2 kV common mode ± 1 kV differential mode
± 2 kV common mode Mains power quality should be that of a typical commercial and/or
hospital environment
Voltage dips,
short
interruptions and
voltage variations
on power supply
input lines
IEC 61000-4-11 <5% U
T
(> 95% dip in U
T
) for 0.5 cycles
40% U
T
(60% dip in U
T
) for 5 cycles
70% U
T
(30% dip in U
T
) for 25 cycles
< 5% U
T
(> 95% dip in U
T
) for 5 sec
0% U
T
(100% dip in U
T
) for 0.5 cycles
40% U
T
(60% dip in U
T
) for 5 cycles
70% U
T
(30% dip in U
T
) for 25 cycles
0% U
T
(100% dip in U
T
) for 5 sec
Mains power quality should be that of a typical commercial and/or
hospital environment. If the user of the device requires continued
operation during power mains interruptions, it is recommended
that the device is powered from an uninterruptible power supply.
Power frequency
(50/60 Hz)
magnetic field
IEC 61000-4-8 3 A/m 3 A/m Power frequency magnetic fields should be a t levels
characteristic of a typical location in a typical commercial and/or
hospital environment
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