Specifications
A-6
www.zoll.com
9650-002360-01 Rev. A
Immunity Test
Test level
Compliance level
Electromagnetic environment-
guidance
Radiated RF
IEC 61000-4-3
10 V/m
80 MHz to 2.5 GHz
20 V/m
d = 0.6
80 MHz to 800 MHz
d = 1.15
800 MHz to 2.5 MHz
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).
b
Field strengths from fixed RF
transmitters, as determined by an
electromagnetic site survey
c
, should be
less than the compliance level in each
frequency range.
d
Interference may occurring 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. The ISM (industrial, scientific, and medical) bands between 150 kHz and 80 MHz are 6.765 MHz to 6.795 MHz; 13.553
MHz to 13.567 MHz; 26.957 MHz to 27.283 MHz; and 40.66 MHz to 40.70 MHz.
b. The compliance levels in the ISM frequency bands between 150 kHz and 80 MHz and in the frequency range 80 MHz to 2.5
GHz are intended to decrease the likelihood that mobile/portable communications equipment could cause interference if it is
inadvertently brought into patient areas. For this reason, an additional factor of 10/3 has been incorporated into the formula
used in calculating the recommended separation distance for transmitters in these frequency ranges.
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 considered. If the mea-
sured field strength in the location in which the ventilator is used exceeds the applicable RF compliance level above, the
ventilator should be observed to
verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting or
relocating the ventilator.
d. Over the frequency range 150 kHz to 80 MHz, field strength should be less than 3 V/m.
P
P
