28
Power
frequency
(50/60Hz)
magnetic field
IEC61000-4-
8
3A/m
3A/m
Power frequency magnetic
fields should be at levels
characteristic of a typical
location in a typical
hospital or home
environment.
Note: U
T
is the a.c. mains voltage prior to application of the test level.
Guidance and Manufacturer's Declaration - Electromagnetic
Immunity
This device is intended for use in the electromagnetic environment specified below.
The user of the device should make sure that it is used in such an environment.
Immunity
test
IEC60601
test level
Compliance
level
Electromagnetic
environment-guidance
Conducted
RF
IEC61000-4-
6
Radiated RF
IEC61000-4-
3
3Vrms
150kHz to
80MHz
3V/m
80MHz to
2.5GHz
3Vrms
3V/m
Portable and mobile RF
communications equipment should
be used further away from any part
of the device (including cables)
than the recommended separation
distance calculated from the
equation applicable to the
frequency of the transmitter.
Recommended separation distance
d = 1.2
d = 1.2
80MHz to 800MHz
d = 2.3
800MHz to 2.5GHz
is the maximum normal output
power of the transmitter, its unit is
Watt (W) and d is the
recommended separation distance,
its unit is meter (m).
Measured magnetic field strengths
from a fixed RF transmitter 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 1: At 80 MHz and 800 MHz, the higher frequency range applied.
Note 2: These guidelines may not apply in all situations. Electromagnetic
propagation is affected by absorption and reflection of the 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
