16
Guidelines and manufacturer's declaration – electromagnetic immunity
The Electronic Stethoscopes ri-sonic PCP-USB / ri-sonic PCP-1 is intended
for use in the electromagnetic environment specified below. The customer
or the user of the Electronic Stethoscopes ri-sonic PCP-USB / ri-sonic PCP-
1 should assure that it is used in such an environment.
Immunity
testing
IEC 60601
Testlevel
Com-
pliance
Electromagnetic environment
- guidance
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
Proximity
fields from RF
wireless com-
muni-cations
equipment
Pass
10 V/m
80 MHz to
2.7 GHz
Pass
10 V/m
Portable and mobile RF commu-
nications equipment should not
be used closer to any part of the
Electronic Stethoscopes ri-so-
nic PCP-USB / ri-sonic PCP-1,
including the cables, than the
recommended distance, which
is calculated using the equation
applicable to the transmitter fre-
quency.
Recommended separation dis-
tance
d= 1.2√P 150 KHz to 80 MHz
d= 1.2√P 80 MHz to 800 MHz
d= 2.3√P 800 MHz to 2.7 GHz
Where P is the maximum output
power of the transmitter in watts
(W) according to the transmitter
manufac¬turer and the recom-
mended distance is given in me-
ters (m).
Field strengths from fixed RF
transmitters determined by an
electromagnetic site
survey a, should be less than the
compliance level in each frequen-
cy range b.
Interference may occur in the vi-
cinity of devices marked with the
following symbol:
