Read Harman Kardon HS 2X0 EMC - CB Certificate online
Page 62 of 62 Report No. SH10011244-001
IEC
60825-1
Clause
Requirement + Test
Result - Remark
Verdict
Appendix no. 1
TRF No. IEC60065J
Others :
―
Details of measurement procedure and measurement results:
Step
specified / measured / calculated
unit
Classification, Laser Class
1
-----
Typical wavelength of laser diode
λ
= 790 (CD)
λ
= 650 (DVD)
nm
nm
Emission duration
t = ∞
s
Time basis
T = 100
s
Size of apparent source
--
mm
Angular subtense
<1.5
mrad
Limiting angular subtense
α
min = 1.5;
α
max = 100
mrad
mrad
Angle of acceptance
γ
= N/A
mrad
Diameter of aperture stop
d = 50 (for Class 1)
mm
Distance of aperture stop to source
r = 100 (for Class 1)
mm
Calculation of AEL (Class as above) :
(Radiant Power [W])
Used formula
(CD)Class 1: 3.9 x 10-4 C4C7
(DVD)Class 1: 3.9 x 10-4
W
W
Used correction factors
C4=100.002(λ-700)=1.51
C7=1
Accessible emission limit
(CD)Class 1: AELradiant = 0.589
(DVD)Class 1: AELradiant = 0.390
mW
mW
Measurement results:
Class 1
Normal condition
(CD)Pm = 0.060
(DVD) Pm = 0.076
mW
mW
Abnormal condition
(CD)Pm = 0.250
(DVD) Pm = 0.380
mW
mW
