7 Using U2000 Series USB Power Sensors
174 N1913A/1914A EPM Series Power Meters User’s Guide
Electromagnetic Compatibility (EMC) Measurements
The low frequency range of the U2004A make it the ideal choice for
making EMC measurements to CISPR (Comite International Special
Perturbations Radioelectriques) requirements, and electromagnetic
interference (EMI) test applications such as the radiated immunity test
(IEC61000- 4- 3).
DC coupling of the U2004A input allows excellent low frequency coverage.
However, the presence of any dc voltages mixed with the signal has an
adverse effect on the accuracy of the power measurement.
The U2004A sensor is DC coupled. DC voltages in excess of the maximum value (5 VDC)
can damage the sensing diode.
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