Harman Kardon AURA (serv.man8) EMC - CB Certificate ▷ View online
Report No.: EM201300550-11 Application No.:
ZJ00032797 Page 25 of 45
5. IMMUNITY TEST
5.1 GENERAL DESCRIPTION
Product Standard
EN 55020:2007+A11:2011
Test set-up
Test specification
EN 55020
EN 61000-4-2
Electrostatic Discharge – ESD:
8kV air discharge, 4kV Contact discharge
Performance Criterion B
8kV air discharge, 4kV Contact discharge
Performance Criterion B
EN 61000-4-4
Electrical Fast Transient/Burst - EFT,
AC power Port: 1kV,
DC power Port: 0.5kV
Signal and control line: 0.5kV,
Performance Criterion B
AC power Port: 1kV,
DC power Port: 0.5kV
Signal and control line: 0.5kV,
Performance Criterion B
EN
55020:2007+A11:201
1
55020:2007+A11:201
1
Immunity to RF Voltage of Mains, Loudspeaker,
headphone and audio connecters (S2a)
headphone and audio connecters (S2a)
EN
55020:2007+A11:201
1
55020:2007+A11:201
1
Immunity to ambient electromagnetic fields (S3)
Report No.: EM201300550-11 Application No.:
ZJ00032797 Page 26 of 45
5.2 GENERAL PERFORMANCE CRITERIA DESCRIPTION
Criteria A
The apparatus shall continue to operate as intended during the test. No
degradation of performance or loss of function is allowed below a performance
level (or permissible loss of performance) specified by the manufacturer, when
the apparatus is used as intended. If the minimum performance level or the
permissible performance loss is not specified by the manufacturer, then either of
these may be derived from the product description and documentation, and from
what the user may reasonably expect from the apparatus if used as intended.
Criteria B
The apparatus shall continue to operate as intended after the test. No degradation
of performance or loss of function is allowed below a performance level (or
permissible loss of performance) specified by the manufacturer, when the
apparatus is used as intended. During the test, degradation of performance is
allowed, however, no change of actual operating state or stored data is allowed. If
the minimum performance level or the permissible performance loss is not
specified by the manufacturer, then either of these may be derived from the
product description and documentation, and from what the user may reasonably
expect from the apparatus if used as intended.
Criteria C
Temporary loss of function is allowed, provided the function is self- recoverable
or can be restored by the operation of the controls, or by any operation specified in
the instructions for use. Not all functions of the apparatus need to be tested. The
selection, the specification of functions and the permissible degradation is left to
the responsibility of the manufacturer.
Report No.: EM201300550-11 Application No.:
ZJ00032797 Page 27 of 45
5.3 ELECTROSTATIC DISCHARGE (ESD)
5.3.1 TEST SPECIFICATION
Basic Standard
EN 61000-4-2:
2009
Discharge Impedance
330 ohm / 150 pF
Discharge Voltage
Air Discharge : 8 kV;
Contact Discharge: 4 kV
Polarity
Positive & Negative
Number of Discharge
Minimum 10 times at each test point
Discharge Mode
Single Discharge
1 second minimum
5.3.2 TEST PROCEDURE
a) The EUT was located 0.1 m minimum from all side of the HCP (dimensions 1.6m * 0.8m).
b) The support units were located another table 30 cm away from the EUT, but direct support unit
was/were located at same location as EUT on the HCP and keep at a distance of 10 cm with EUT.
c) The time interval between two successive single discharges was at least 1 second.
d) Contact discharges were applied to the non-insulating coating, with the pointed tip of the generator
penetrating the coating and contacting the conducting substrate.
e) Air discharges were applied with the round discharge tip of the discharge electrode approaching the
EUT as fast as possible (without causing mechanical damage) to touch the EUT. After each
discharge, the ESD generator was removed from the EUT and re-triggered for a new single
discharge. The test was repeated until all discharges were complete.
f) At least ten single discharges (in the most sensitive polarity) were applied at the front edge of each
HCP opposite the center point of each unit of the EUT and 0.1 meters from the front of the
EUT. The long axis of the discharge electrode was in the plane of the HCP and perpendicular to its
front edge during the discharge.
Report No.: EM201300550-11 Application No.:
ZJ00032797 Page 28 of 45
g) At least ten single discharges (in the most sensitive polarity) were applied to the center of one
vertical edge of the Vertical Coupling Plane (VCP) in sufficiently different positions that the four
faces of the EUT were completely illuminated. The VCP (dimensions 0.5m * 0.5m) was placed
vertically to and 0.1 meters from the EUT.
5.3.3 TEST SETUP
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