EMC Guidance and Manufacturer’s Declarations 121
Selecta
PBL200051, Rev J
Guidance
and
Manufacturer's
Declaration:
Electromagnetic
Immunity
Selecta ophthalmic laser family
is
intended
for
use
in
the
electromagnetic
environment
specified
below.
The
customer
or the
user
of
Selecta ophthalmic laser family
should
ensure
that
it
is
used
in
such
an
environment.
Immunity
Te s t
IEC
60601
Te s t
Level
Compliance
Level
Electromagnetic
Environment: Guidance
Portable and mobile RF communications equipment should be used
no closer to any part of the Selecta ophthalmic laser family system,
including its cables, than the recommended separation distance cal-
culated from the equation applicable to the frequency of the trans-
mitter.
Recommended Separation Distance
Conducted
RF
IEC
61000-4-6
3
Vrms
150
kHz
to
80
MHz
3
V
Radiated
RF
IEC
61000-4-3
3
V/m
80MHz
to
2.5
GHz
3
V/m
80 MHz to 800 MHz
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 fixed RF transmitters, as determined by an elec-
tromagnetic 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
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,
ama-
teur
radio,
AM
and
FM
radio
broadcast,
and
TV
broadcast, cannot
be
predicted
theoretically
with
accuracy.
To
assess
the
electro-
magnetic
environment
due
to fixed
RF
transmitters,
an
electromagnetic
site
survey
should
be
considered.
If
the
measured
field
strength
in
the
location
in
which
the
Selecta ophthalmic laser family
system
is
used
exceeds
the
applicable
RF
compliance
level above,
the
Selecta ophthalmic laser family
system
should
be
observed
to
verify
normal
operation.
If
abnormal
performance
is observed,
additional
measures
may
be
necessary,
such
as
reorienting
or
relocating
the
Selecta ophthalmic laser family
unit.
(b)
Over
the
frequency
range
150
kHz
to
80
MHz,
field
strengths
should
be
less
than
3
V/m.
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