Table of Contents
Advertisement
Immunity
IEC 60601 test level
Compliance
Electromagnetic environment -
test
level
guidance
Conducted
3Vrms
Not
Portable and mobile RF communica-
RF
At 0.15-80 MHz
Applicable
tions equipment should be used
IEC
61000-
no closer to any part of the
device,
4-6
6Vrms
including
cables,
than the recom-
At ISM & Radio
Arna-
mended separation distance calcu-
teur Freq
lated from the equation applicable to
the frequency of the transmitter.
Radiated
10 V/m at 80-2700 MHz
1 O V/m at 80-2700 MHz
Recommended separation distance
RF
AM Modulation
AM Modulation
Considering to reduce the minimum
IEC 61000-
And 9-28V /m at
And 9-28V
/
m at
separation distance, based on
4-3
385-6000MHz,Pulse
385-6000MHz,
Pulse
RISK MANAGEMENT, and using
Proximity
Mode and other Modu-
Mode and other Modula-
higher IMMUNITY TEST LEVELS
fields from
lation.
The system shall
tion.
The system shall
that are appropriate for the reduced
RF wireless
be tested as specified
be tested as specified
minimum separation distance.
commu-
in IEC60601-1-2 Table
in IEC60601-1-2 Table 9
Minimum separation distances for
nications
9 for proximity fields
for proximity fields from
higher IMMUNITY TEST LEVELS
equipment
from RF wireless
com-
RF wireless communica-
shall be calculated using the
follow-
IEC 61000-
munications equipment
tions equipment using
ing equation:
4-3
using the test methods
the test methods speci-
specified in IEC
tied in IEC
61000-4-
E=6'd
,/p
61000-4-3
385-6000MHz,Pulse
Mode and other Modula-
where P is the maximum power in
tion.
The system shall
W,
dis the minimum separation
dis-
be tested as specified
tance in
m,
and E is the IMMUNITY
in IEC60601 -1-2 Table 9
TEST LEVELS in V/m.
for proximity fields from
RF wireless communica-
Field strengths from fixed RF
tions equipment using
transmitters, as determined by an
the test methods speci-
electromagnetic site
survey,
a
should
tied in IEC 61000-4-3
be less than the compliance level in
each frequency range.
b
Interference may occur in the vicinity
of equipment marked with the fol-
lowing symbol:
(('il)
NOTE 1 At 80 MHz and 800
MHz,
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 device is used exceeds the applicable RF compliance level above, the device should be observed to
verify normal operation. If abnormal performance is observed, additional measures may be
necessary,
such as reorienting or relocating the device.
b.
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m
Advertisement
Table of Contents
