14
Immunity
test
IEC 60601
test level
Compliance
level
Electromagnetic
environment - guidance
Guidance and MANUFACTURER’S declaration – electromagnetic
immunity – for EQUIPMENT and SYSTEM that are not LIFE-SUPPORTING
Guidance and manufacturer’s declaration – electromagnetic immunity
The model ESM201 is intended for use in the electromagnetic environment
specified below. The customer or the user of the model ESM201 should assure that
it is used in such an environment.
Radiated
RF
IEC
61000-4-3
Portable and mobile RF communications
equipment should be used no closer to
any part of the model ESM201, including
cables, than the recommended separation
distance calculated from the equation
applicable to the frequency of the
transmitter.
Recommended separation distance
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 metres (m).b
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 1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic 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 model ESM201 is used
exceeds the applicable RF compliance level above, the model ESM201 should be observed to
verify normal operation. If abnormal performance is observed, additional measures may be
necessary, such as re-orienting or relocating the model ESM201.
b Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
3 V/m
80 MHz to 2.5
GHz
3 V/m
15
Recommended separation distances between portable and mobile RF
communications equipment and the EQUIPMENT or SYSTEM - for
EQUIPMENT and SYSTEMS that are not LIFE-SUPPORTING
Separation distance according to frequency of
transmitter
m
Recommended separation distances between
portable and mobile RF communications equipment and the model ESM201
Rated maximum
output of
transmitter
W
150 kHz to 80
MHz
80 MHz to 800
MHz
80 MHz to 800
MHz
The model ESM201 is intended for use in an electromagnetic environment in which
radiated RF disturbances are controlled. The customer or the user of the model
ESM201 can help prevent electromagnetic interference by maintaining a minimum
distance between portable and mobile RF communications equipment
(transmitters) and the model ESM201 as recommended below, according to the
maximum output power of the communications equipment.
For transmitters rated at a maximum output power not listed above the recommended
separation distance d in metres (m) can be estimated using the equation applicable to the
frequency of the transmitter, where P is the maximum output power rating of the
transmitter in watts (W) according to the transmitter manufacturer.
NOTE 1 At 80 MHz and 800 MHz, the separation distance for 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.
0.01
0.1
1
10
100
0.12
0.38
1.2
3.8
12
0.12
0.38
1.2
3.8
12
0.23
0.73
2.3
7.3
23
P
V
d
]
5
.
3
[
1
=
P
E
d
]
5
.
3
[
1
=
P
E
d
]
7
[
1
=
