Covidien Nellcor Series, Руководство оператора

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Manufacturer’s Declaration and Guidance
Operator’s Manual 11-11
Table 11-8. Recommended Separation Distance Calculations
Guidance and Manufacturer’s Declaration—Electromagnetic Immunity (IEC/EN 60601-1-2)
The monitoring system is intended for use in the electromagnetic environment specified below. The customer or the user
of the monitoring system should assure that it is used in such an environment.
Immunity
Test
IEC/EN 60601-1-2
Test Level
Compliance
Level
Electromagnetic
Environment Guidance
Conducted RF
IEC/EN
61000-4-6
Radiated RF
IEC/EN
61000-4-3
3 Vrms
150 kHz to
80 MHz
6 Vrms ISM bands
20 V/m
80 MHz to
2.5 GHz
10 V/m
80 MHz to
2.7 GHz
3 Vrms
150 kHz to
80 MHz
6 Vrms ISM bands
20 V/m
80 MHz to
2.5 GHz
10 V/m
80 MHz to
2.7 GHz
Portable and mobile RF communications equipment should be
used no closer to any part of the monitoring system, including
cables, than the recommended separation distance calculated
from the equation applicable to the frequency of the transmitter.
Recommended Separation Distance
80 MHz to 800 MHz
800 MHz to 2.7 GHz
where P is the maximum output power rating of the transmit-
ter in watts ( W ) according to the transmitter manufacturer
and d is the recommended separation distance in meters ( m ).
Field strengths from fixed RF transmitters, as determined by
an electromagnetic site survey
a
, should be less than the com-
pliance level in each frequency range
b
.
Interference may occur in the vicinity of equipment marked with
the following symbol:
NOTE 1: At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2: These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from
structures, objects, and people.
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 envi-
ronment due to fixed RF transmitters, an electromagnetic site survey should be considered. If the measured field strength in the location
in which the monitoring system is used exceeds the applicable RF compliance level above, the monitoring system should be observed
to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as re-orienting or relocat-
ing the monitoring system.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
d 1.2 P =
d 0.2 P =
d 0.4 P =