INTRODUCTION
Guidance and Manufacturer’s Declaration: Electromagnetic Immunity
The equipment is intended for use in the electromagnetic environment specified in the table below. The customer or
the user of the equipment should ensure that it is used in such an environment.
Immunity Test
IEC 60601 Test
Level
Compliance
Level
Electromagnetic Environment: Guidance
Conducted RF
EN 61000-4-6
3 Vrms
150 kHz to
80 MHz
3 Vrms
150 kHz to
80 MHz
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
3.5
P
3
Vrms
d
3.5
P
80 MHz to 800 MHz
3
V
/
m
d
7
P
800 MHz to 2.5 GHz
3
V
/
m
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 surveya, should
be less than the compliance level in each frequency
rangeb.
Interference may occur in the vicinity of equipment
marked with the following symbol:
Radiated RF
IEC 61000-4-3
3 V/m
80 MHz to
2.5 GHz
3 V/m
80 MHz to
2.5 GHz
a.
Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile radios,
amateur radios, 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 range 150 kHz to 80 MHz, field strengths should be less than [3] V/m.
15
