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Technical Information
Table 9: Guidance and Manufacturer's Declaration – Electromagnetic Immunity
Immunity Test
This device is intended for use in the electromagnetic environment specified below. The user of this device
Portable and mobile RF communications equipment should be used no closer to any part of the device,
including cables, than the recommended separation distance calculated from the equation applicable to the
frequency of the transmitter.
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
NOTES:
• At 80 MHz and 800 MHz, the higher frequency range applies.
• These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and
reflection from structures, objects, and people.
a. SpO
and HR operate as intended.
2
b. Breath detection is affected at fields greater than specified level.
c. 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 con-
sidered. 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.
d. Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
IEC 60601
Test Level
should ensure that it is used in such an environment.
3 Vrms
3 V
150 kHz to 80 MHz
3 V/m
3 V/m
80 MHz to 1.0 GHz
3 V/m
3 V/m
0.5 V/m
1.0 GHz to 2.5 GHz
Compliance
Electromagnetic Environment—
Level
Recommended Separation Distance
d
=
1.17 P
d
=
1.17 P
d
=
2.33 P
a
where P is the maximum output power
b
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
c
survey
, should be less than the
compliance level in each frequency range.
Interference may occur in the vicinity of
equipment marked with the following
symbol:
Guidance
d
47
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