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Chapter 10
Specifications
10-12
The BiPAP Focus System is suitable for use in the specified electromagnetic
environment. The customer and/or the user of the BiPAP Focus System should
ensure that it is used in an electromagnetic environment as described below:
IEC
Immunity
60601-1-
Test
2 Test
Level
Conducted
3 Vrms
RF
150kHz to
IEC 61000-
80MHz
4-6
Radiated RF
3 V/m
IEC 61000-
80mHz to
4-3
2.5GHz
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 BiPAP Focus System is used exceeds the
applicable RF compliance level above, the BiPAP Focus System should be
observed to verify normal operation. If abnormal performance is observed, addi-
tional measures may be necessary, such as reorienting or relocating the BiPAP
Focus System.
b.
Over the frequency range 150kHz to 80MHz, field strengths should be less
than 3 V/m.
Note: These guidelines may not apply in all situations. Electromagnetic propagation is
affected by absorption and reflection from structures, objects, and people.
BiPAP Focus Ventilator Service Manual © Respironics, Inc.
Compliance
Electromagnetic Environment Guidance
Level
3 V
Portable and mobile RF communications
equipment should be used no closer to
any part of the BiPAP Focus System,
including cables, than the recommended
separation distance calculated from the
3 V/m
equation appropriate for the frequency of
the transmitter.
Recommended separation distance:
d
=
1.2 P
d
=
1.2 P
d
=
2.3 P
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
less than the compliance level in each
frequency range
Interference may occur in the
vicinity of equipment marked
with the following symbol:
80MHz to 800MHz
800MHz to 2.5GHz
a
, should be
b
.
REF 1029568 Rev B
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