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CALCULATION OF DNPO
Applied Standard: 60825-1 IEC 1993 + A1:1997 + A2:2001 (E) // Appendix A.5
Wavelength 808 nm
ϕ
π a E P
DNPO
MPE o
−
=
/ 4
P
o
= 0,25W
E
MPE
= 610 W.m
-2
a = 0,0006 m
= 0,45 rad.
DNPO = 4,94 cm
Wavelength 660 nm
ϕ
π a E P
DNPO
MPE o
−
=
/ 4
P
o
= 0,1W
E
MPE
= 372,2 W.m
-2
a = 0,0006 m
= 0,45 rad.
DNPO = 4 cm
EQUIPMENT ELECTROMAGNETIC SAFETY STANDARDS
Find below the tables which represent the adequacy to emission and electromagnetic immunity
standards.
Manufacturer standards and declaration - Electromagnetic Emissions - for every equipment
and system [IEC 60601-1-2 / 2007 – subcl. 6.8.3.201 a) 3)]
Therapy Plus is designated to be used in electromagnetic environment specified below. Therapy Plus’ custo-
mer or user shall ensure it will be used in such environment.
Immunity test Compliance Electromagnetic Environment - Standard
RF emissions
ABNT NBR IEC CISPR 11 Group 1
Compliance
Therapy Plus uses RF energy only for internal
functions. So, its RF emissions are very low and
it is not likely to cause any interference to close
electronic equipment.
Therapy Plus can be used at all establishments
which are not designated for domestic use or
which are not directly connected to a public
low-tension energy supply network which feeds
buildings used for domestic purposes.
RF emissions
ABNT NBR CISPR 11
Class “A”
Harmonic emissions
IEC 61000-3-2
Not applicable
Emissions due to voltage fluctu-
ation/flicker
IEC 61000-3-3
Not applicable
Table 1: Information regarding compliance to the requirements for electromagnetic emission based
on Table 201 – 60601-1-2, 2007.