Guidance and Masimo’s declaration – electromagnetic immunity –
for EMMA
EMMA is intended for use in the electromagnetic environment specified below. The customer or the user
of EMMA 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
Radiated RF
IEC 61000-4-3
Radiated RF
IEC 61000-4-3
20 V/m, 80%
AM at 1kHz
field strength
is defined in
EN-ISO 80601-
2-55 in
202.6.2.3.1
3 Vrms
150 kHz to 80
MHz
3 V/m
80 MHz to
2.5 GHz
20 V/m
80 MHz to
2.5 GHz
Not applicable
3 V/m
20 V/m
Portable and mobile RF communications
equipment should be used no closer to any
part of EMMA including cables than the
recommended separation distance calculated
from the equation applicable to the frequency
of the transmitter.
Recommended separation distance
80 MHz to 800 MHz
800 MHz to 2.5 GHz
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 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 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 EMMA is used exceeds the applicable RF compliance level above, EMMA should be
observed to verify normal operation. If abnormal performance is observed, additional measures may be
necessary, such as reorienting or relocating EMMA.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 10 V/m.
28(32)