Acer AM677 Manual - Página 38
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Imprimir página7. Power Line Transient Test (IEC 61000-4-4 Fast
Transients/Burst)
TEST CONDITIONS & PROCEDURE: (Follow IEC 61000-4-4)
Test Condition :
The condition is base on operating with 50Ω load.
7.1 Peak Voltage:
2 KV (applies the Level 3 typical Industrial Environment" of IEC 61000-4-4)
7.2 Polarity
7.3 Repetition Frequency of the impulse : 5 KHz.
7.4 Rise-Time : 5ns
7.5 Impulse Duration: 50 nS
7.6 Relation to Power Supply: Asynchronous
7.7 Burst Duration: 15 ms
7.8 Burst Period: 300 ms
7.9 Climatic Conditions:
- Ambient Temperature: 15°C to 35°C
- Relative Humidity: 45% to 75%
- Atmospheric Pressure: 86 kPa to 106 kPa
7.10 Test Procedure:
The monitor Display set high-resolution mode, AC input use AC 240V.
Note :
7.10.1
IEC 61000-4-4 defines that power supply, I/O line, and control line all shall be performed
the transient test, but the I/O line and control line is applied with only half of peak voltage
(1 KV).
7.10.2
For the comparison of wave-shape generated by different generator, so the test must uses
a scope with at least 400 MHz bandwidth, and coupled to 50
impulse, duration, and repetition rate of the impulses within one burst.
: + / -
±
30%
±
30%
±
20%
±
20%
38
Ω
to monitor the rise-time,