User's Manual
74
Guidance and manufacturer’s declaration - electromagnetic immunity
The EUT is intended for use in the electromagnetic environment specified below.
The customer or the user of the EUT should assure that it is used in such an environment.
Immunity test
IEC
60601-1-2
test level
Compliance
level
Electromagnetic environment - guidance
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3 Vrms
150 kHz to
80MHz
3 V/m
80 MHz to
2.5GHz
V
1
=3Vrms
E
1
=3V/m
Portable and mobile RF communications equipment
should be used no closer to any part of the EUT,
including cables, than the recommended separation
distance calculated from the equation applicable to the
frequency of the transmitter.
Recommended separation distance :
P
V
d
1
5.3
P
E
d
1
5.3
80MHz to 800MHz
P
E
d
1
7
800MHz 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 deter-
mined 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 80MHz and 800MHz, 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 environment due to fixed RF
transmitters, an electromagnetic site survey should be considered. If the measured field strength in the
location in which the EUT is used exceeds the applicable RF compliance level above, the EUT should
be observed to verify normal operation. If abnormal performance is observed, additional measures
may be necessary, such as re-orienting or relocating the EUT.
b
Over the frequency range 150kHz to 80MHz, field strengths should be less than [V
1
] V/m.