20 Electromagnetic compatibility statement 131
fabian +nCPAP evolution | SW V5.1.x
Ref: 122003.EN / Date : 26Jan2021
Guideline and Manufacturer Declaration – Electromagnetic Immunity
The device fabian +nCPAP evolution is intended for operation in the environment described below. The
customer or operator of the fabian +nCPAP evolution apparatus should ensure it is operated in this type of
environment.
Electromagnetic Environment – Guideline
NEVER use portable or mobile radio devices closer to the fabian +nCPAP evolution, including cables, than the
recommended safety distance calculated using the equation applicable to the transmission frequency.
Conducted
Disturbances
Induced RF Fields
IEC 61000-4-6
3 Vrms
150 kHz to 80 MHz (a)
Recommended Safety Distance (d)
d = 0.35√P
d = 1.2√P
10 Vrms (ISM bands)
150 kHz to 80 MHz (b)
Radiated RF
Electromagnetic
Fields
IEC 61000-4-3
10 V / m
Sweep from 80 MHz to 2.7 GHz
27 V / m
385 MHz
d = 1.2√P80 MHz to 800 MHz
d = 2.3√P800 MHz to 2.7 GHz
28 V / m
450, 810, 870, 930, 1720, 1845, 1970,
2450 MHz
9 V / m
710, 745, 780, 5240, 5500, 5785 MHz
(P) being the transmitter’s nominal rating in Watts
(W) per manufacturer specifications and (d) being
the recommended safety distance (b) in meters
(m).
The area strength of stationary radio transmitters
should be below the compliance level (d) on all
frequencies as tested on site c.
Interference could occur in proximity of
apparatuses bearing the following symbol:
REMARK 1 At 80 MHz and 800 MHz the higher frequency range applies.
REMARK 2 These guidelines may not apply to all case. The propagation of electromagnetic quantities is
influenced by absorption and reflection of buildings, objects and people.
The ISM bands (industrial, scientific and medical) between 150 kHz and 80 MHz are:
6.765 to 6.795 MHz;
13.553 to 13.567 MHz;
26.957 to 27.283 MHz;
40.66 to 40.7 MHz
The compliance levels in ISM frequency bands between 150 kHz and 80 MHz and between 80 MHz and
2.5 GHz are defined as such to decrease the probability of mobile/portable transmitters causing
interference in the event they are accidentally brought into the vicinity of the patient. For this reason, an
additional factor of 10 /3 is used when calculating the recommended safety distance of transmitters in
this frequency range.
To Next Page
Loading...
Need help?
General
