Use Instructions

IFU-EUA Rev. 01
Date: 01Sep2020
Page 15 of 17
Recommended separation distance between portable and mobile RF
communications equipment and Cardi/o
®
Sensor.
(For ME equipment ME system that are not life-supporting)
The Cardi/o
®
Sensor is intended for use in the electromagnetic environment in which radiated RF disturbances are
controlled. The end user of the device can help prevent electromagnetic interference by maintaining a minimum
distance between portable and mobile RF communications equipment (transmitters) and the Cardi/o
®
Sensor as
recommended below, according to the maximum output power of the communications equipment.
Maximum Permissible Exposure (MPE) Limits (§1.1310)
Frequency
range (MHz)
Electric field
strength
Magnetic field
strength
Power density
Averaging
time
(V/m) (A/m) (mW/cm
2
) (minutes)
(i) Limits for Occupational/Controlled Exposure
0.3-3.0 614 1.63 *(100) ≤6
3.0-30
1842/f
4.89/f
*(900/f
2
) <6
30-300
61.4 0.163 1 <6
300-1,500
f/300
<6
1,500-100,000 5 <6
(ii) Limits for General Population/Uncontrolled Exposure
0.3-1.34 614 1.63 *(100) <30
1.34-30
824/f
2.19/f
*(180/f
2
) <30
30-300 27.5 0.073 0.2 <30
300-1,500
f/1500
<30
1,500-100,000 1 <30
f = frequency in MHz. * = Plane-wave equivalent power density.
For transmitters rated at a maximum output power not listed above, the recommended separation distance d in
meters (m) can be estimated 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: These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and
reflection from structures, objects, and people. Note 2: Cardi/o is intended to operate at ≥ 20 cm from persons
during normal use. Note 3: Over the frequency range 1,500 MHz to 1,500-100,000 MHz, field strengths should be
less than 5 mW/cm
2
for uncontrolled environments and less than 1 mW/cm
2
for controlled environments.