User's Manual

pulseEKKO PRO Appendix D: Health & Safety Certification
D-1
Appendix D: Health & Safety Certification
Radio frequency electromagnetic fields may pose a health hazard when the fields are intense. Normal
fields have been studied extensively over the past 30 years with no conclusive epidemiology relating elec-
tromagnetic fields to health problems. Detailed discussions on the subject are contained in the references
and the web sites listed below.
The USA Federal Communication Commission (FCC) and Occupational Safety and Health Administration
(OSHA) both specify acceptable levels for electromagnetic fields. Similar power levels are mandated by
corresponding agencies in other countries. Maximum permissible exposures and time duration specified
by the FCC and OSHA vary with excitation frequency. The lowest threshold plane wave equivalent power
cited is 0.2 mW/cm
2
for general population over the 30 to 300 MHz frequency band. All other applications
and frequencies have higher tolerances as shown in graphically in Figure D-1.
Figure D-1: FCC limits for maximum permissible exposure (MPE) plane-wave equivalent power density mW/cm
2
.
All Sensors & Software Inc. pulseEKKO, Noggin and Conquest products are normally operated at least 1
m from the user and as such are classified as “mobile” devices according to the FCC. Typical power den-
sity levels at a distance of 1 m or greater from any Sensors & Software Inc. product are less than 10
-3
mW/
cm
2
which are 200 to 10,000 times lower than mandated limits. As such, Sensors & Software Inc. products
pose no health and safety risk when operated in the normal manner of intended use.