Physio-Control TrueCPR - Manual (Page 26)

22 TrueCPR Device Instructions for Use
Electromagnetic Compatibility Guidance
Separation Distances
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 TrueCPR device is used exceeds the applicable RF compliance level above,
the TrueCPR device should be observed to verify normal operation. If abnormal performance is
observed, additional measures may be necessary, such as re-orienting or relocating the TrueCPR
device.
b Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Table 4 Recommended separation distances between portable and mobile RF
communications equipment and the TrueCPR device, model 80596-000003.
The TrueCPR device is intended for use in an electromagnetic environment in which
radiated RF disturbances are controlled. The customer or user of the TrueCPR device can
help prevent electromagnetic interference by maintaining a minimum distance between
portable and mobile RF communications equipment (transmitters) and the TrueCPR
device as recommended below, according to the maximum output power of the
communications equipment.
Rated maximum
output power of
transmitter
W
Separation distance according to frequency of transmitter
m
150 kHz to
80 MHz
d = 1.2
80 MHz to
800 MHz
d = 1.2
800 MHz to 2.5 GHz
d = 2.3
0.01 0.12 0.12 0.23
0.1 0.38 0.38 0.73
1 1.2 1.2 2.3
10 3.8 3.8 7.3
100 12 12 23
For transmitters rated at a maximum output power not listed above, the recommended
separation distance d in meters (m) 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 (W) according to the transmitter manufacturer.
Note 1: At 80 MHz and 800 MHz, the separation distance for 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.
Table 3 Guidance and Manufacturer’s Declaration - Electromagnetic Immunity
(Continued)
P P
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3312954-901.book Page 22 Tuesday, March 26, 2013 9:45 AM