Product Manual

Guidance and Manufacturer’s Declaration - Electromagnetic Immunity
The Eko Electronic Stethoscope System is intended for use in the
electromagnetic environment specied below. The user of the Eko
Electronic Stethoscope System should assure that it is used in such an
environment.
Immunity
Test
IEC 60601
Test Level
Compliance
Level
Electromagnetic
Environment-Guidance
Conducted RF
IEC 61000-4-6
3 Vrms
150 kHz to
80 MHz
Not
Applicable
Radiated RF
IEC 61000-4-3
3V/m
80 MHz to
2.5 GHz
3 V/m
80 MHz to
2.5 GHz
d = 1.2 √P 80 MHz to
800 MHz
d = 2.3 √P 800 MHz to
2.5 GHz
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
xed 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:
33
© 2015 Eko Devices, Inc.
Immunity
Test
IEC 60601
Test Level
Compliance
Level
Electromagnetic
Environment-Guidance
Power
frequency
(50/60 Hz)
magnetic
eld
IEC 61000-4-8
3 A/m 3 A/m Power frequency
magnetic elds should
be at levels characteristic
of a typical location in
a typical commercial
magnetic eld or hospital
environment.
NOTE U
T
is the a.c. mains voltage prior to application of the test level