ZOLL M Series Defibrillator Rev YH User Manual
Page 82
M S
ERIES
O
PERATOR
’
S
G
UIDE
A-8
Recommended Separation Distances from RF Equipment for the M Series
Life-Support Functions
Recommended separation distances between portable and mobile RF communications equipment and the M Series.
The life-support functions
a
of the M Series are intended for use in the electromagnetic environment in which
radiated RF disturbances are controlled. The customer or user of the M Series can help prevent electromagnetic
interference by maintaining a minimum distance between portable and mobile RF communications equipment
(transmitters) and the M Series as recommended below, according to the maximum output power of the
communications equipment.
a. The life-support functions on the M Series are defined to be any function associated with ECG monitoring, pacing, defibrillation, and shock
analysis. Specifically, these functions include, but are not limited to, the ECG waveform monitoring from leads or pads, the pacing pulse
output, QRS detection, defibrillation energy discharge, and shock advisory functions.
Rated maximum
output power of
equipment
(in watts)
Separation distance according to frequency of transmitter
(in meters)
150 kHz to 80 MHz
outside ISM bands
150 kHz to 80 MHz
in ISM bands
80 MHz to 800 MHz
800 MHz to 2.5 GHz
0.01
0.035
0.12
0.06
0.12
0.1
0.11
0.38
0.19
0.38
1
0.35
1.2
0.6
1.2
10
1.1
3.8
1.9
3.8
100
3.5
12
6
12
For transmitters rated at a maximum output power not listed above, the recommended separation distance d in
meters can be determined using the equation applicable to the frequency of the transmitter, where
P
is the
maximum output power rating of the transmitter in watts according to the transmitter manufacturer.
NOTE 1: At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
NOTE 2: 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.
NOTE 3: An additional factor of 10/3 is used in calculating the recommended separation distances for transmitters in
the ISM frequency bands between 150 kHz and 80 MHz and in the frequency range 80 MHz to 2.5 GHz to decrease
the likelihood that mobile/portable communications equipment could cause interference if it is inadvertently brought
into patient areas.
NOTE 4: These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption
and reflection from structures, objects, and people.
d =0.35
P
d =1.2
P
d =0.6
P
d =1.2
P