Appendices
20-25
TABLE C-3
Guidance and MINDRAY declaration — electromagnetic immunity
The equipment is intended for use in the electromagnetic environment specified below.
The customer or the user of the equipment should assure that it is used in such an environment
Immunity
test
IEC 60601
Test level
Compliance
level
Electromagnetic environment — guidance
Conduced
RF IEC
61000-4-6
3 Vrms
150kHz to
80MHz
3 Vrms
Radiated
RF IEC
61000-4-3
3 V/m
80MHz to
2.5GHz
3V/m
Portable and mobile RF communications equipment
should be used no closer to any part of the
equipment, including cables, than the recommended
separation distance calculated from the equation
applicable to the frequency of the transmitter.
Recommended separation distance
d = 1.2 x
P
d = 1.2 x
P
80 MHz to 800 MHz
d = 2.3 x
P
800 MHz to 2.5GHz
where P is the maximum output power rating of the
transmitter 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 compliance level in each
frequency range
b
Interference may occur in the
vicinity of equipment marked with the following
symbol:
Note — At 80 MHz and 800 MHz, the higher frequency range applies.
Note — 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
environment due to fixed RF transmitters, an electromagnetic site survey should be considered.
If the measured field strength in the location in which the equipment is used exceeds the
applicable RF compliance level above, the equipment should be observed to verify normal
operation. If abnormal performance is observed, additional measures may be necessary, such
as reorienting or relocating the equipment.
b
Over the frequency ranges 150kHz to 80MHz, field strengths should be less than 3V/m.
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