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spiro
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User Manual
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Guidance and manufacturer’s declaration – electromagnetic immunity
Spirohome
®
battery-operated spirometer devices are intended for use in the electromagnetic
environment specified below. Users of these devices should assure that it is used in such an
environment.
Immunity test
standard
IEC 60601 test
level
Compliance
level
Recommended separation distance
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
NA
3 V/m 80 MHz
to 2.7 GHz
3 V/m
Portable and mobile RF communications
equipment should be used no closer to
any part of the Spirohome
®
devices
including cables, than the recommended
separation distance calculated from the
equation appropriate to the frequency of
the transmitter.
Recommend separation distance
d = 1.2 √P
d = 1.2 √P 80 MHz to 800 MHz
d = 2.3 √P 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:
Note1: At 80 MHz and 800 MHz, the higher frequency range applies.
Note2: 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 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 Spirohome
®
devices are used exceeds the
applicable RF compliance level above, the Spirohome
®
device should be observed to verify
normal operation. If abnormal performance is observed, additional measures may be
necessary, such as reorienting or relocating the Spirohome
®
device.
b
Over the frequency range 150 kHz to 80MHz, field strengths should be less than 3 V/m.
First Pub. Date: 24.09.2018
R.9-1 / 10.03.2020