Certificate Of Compliance

HBCS Report # EMC_12003 Page 10 of 36
Criteria for Emissions
1. Conducted Emissions
Test Requirement(s): EN 55022:2007 Test Engineer(s): None
Test Results: N/A Test Date(s): None
Test Procedures: The EUT was placed on a non-metallic table, 80cm above the ground
plane inside a shielded enclosure. The EUT was powered through a
50Ω/50μH LISN. The conducted emissions tests were performed using the
mode of operation and configuration noted within this report. The
frequency range investigated (scanned), is also noted in this report.
Conducted power line measurements are made, unless otherwise
specified, over the frequency range from 150 kHz to 30 MHz to
determine the line-to-ground radio-noise voltage that is conducted from
the EUT power-input terminals that are directly (or indirectly via separate
transformer or power supplies) connected to a public power network.
Equipment is tested with power cords that are the same as those cords
normally used or that have electrical or shielding characteristics that are
the same as those cords normally used. Typically those measurements
are made using a LISN (Line Impedance Stabilization Network). All 50
Ohm measuring ports of the LISN are terminated by 50 Ohms, either by
the 50 Ohm EMI receiver or a 50 Ohm resistive load.
Refer to the Emissions Tests Calculations section in the Radiated
Emissions section for sample calculations. For the purposes of the
conducted emissions test, the Antenna Factor (AF) is replaced by the LISN
correction factor.
Frequency Range (MHz)
Peak Data (kHz)
Quasi
-
Peak Data (kHz
)
Average Data (kHz)
0
.150
-
30
9.0
9.0
9.0
Measurements were made using the bandwidths and detectors specified. No video filter was used.
Table 1.Conducted Emissions – Measurement Bandwidth
Frequency
Range ( MHz)
55011
, Class A Limits (dBuV)
5501
1
, Class B Limits (dBuV)
Quasi
-
Peak
Average
Quasi Peak
Average
0.15
–
0.5
79
66
66
-
56
56
-
46
0.5
–
5.0
73
60
56
46
5.0
–
30
73
60
60
50
Note 1 – The lower limit shall apply at the transition frequencies.
Note 2 – The limit decreases linearly with the logarithm of the frequency in the range 0.15MHz to 0.50MHz
Table 2. Conducted Emissions Limits – Limits from EN 55022