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Advantech IPC-5120 Manual de usuario Pagina 11

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Compliance Certification Services Inc.
Report No.: 60707201-F Refer No.: 60321204 Date of Issue: July 7, 2006
Page 11 Rev. 00
Procedure of Final Test
l EUT and support equipment were set up on the test bench as per step 10 of the preliminary
test.
l A scan was taken on both power lines, Line 1 and Line 2, recording at least the six highest
emissions. Emission frequency and amplitude were recorded into a computer in which
correction factors were used to calculate the emission level and compare reading to the
applicable limit. If EUT emission level was less –2dB to the AV. limit in Q.P. mode, then
the emission signal was re-checked using an AV. detector.
l The test data of the worst-case condition(s) was recorded.
Data Sample:
Freq.
MHz
Read
Level
dBuV
Factor
dB
Level
dBuV
Limit
dBuV
Over
Limit
dB
Reading
Type
(P/Q/A)
Line
(L1/L2)
x.xx 42.95 0.55 43.50 73 -29.50 Q L1
Freq. = Emission frequency in MHz
Read Level = Uncorrected Analyzer/Receiver reading
Factor = Insertion loss of LISN + Cable Loss
Level = Read Level + Factor
Limit = Limit stated in standard
Over Limit = Reading in reference to limit
P = Peak Reading
Q = Quasi-peak Reading
A = Average Reading
L1 = Hot side
L2 = Neutral side
Calculation Formula
Over Limit (dB) = Level (dBuV) – Limit (dBuV)
.
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