EM TEST CWS 500D - Test Setup with the Current Monitor; Test Level and Modulation

EM Test CWS500 D
User manual V 1.07 28 / 34
6.7. Test Setup with the Current Monitor
Maximum Voltage on the MONITOR INPUT V
max
= 13dBm
Fig 6.13: Test Setup current monitoring probe
With the CWS500D and the built-in Powermeter PM tests with current clamp ( BCI) or with EM clamps are
easily made whatever with or without DUT current monitoring.
In case of DUT current monitoring, connect the 50Ω output of the current probe to the monitor input of the
CWS500D. The setup above is applicable for both clamps (current injection clamp or EM clamp). In addition go
to the standard library of the ICD software.
In such routine the DUT current is controlled and after DUT current is controlled and after each parameter
increment / decrement (routine-step) the measured DUT current is compared to Imax. In case of higher value
the output voltage is reduced until Imax is underbid.
I
max
= U
0
/ 150Ω as per EN61000-4-6
6.8. Test Level and Modulation
Test Level as per ISO 11452-4
Suggested test severity levels and frequency bands
Frequency Range 1MHz to 400MHz
Level Value mA
I 25mA
II 50mA
III 75mA
IV 100mA
V Specific value agreed between the users of this part of ISO 11452, if necessary
Test Level as per IEC 61000-4-6
Testing is normally carried out at individual frequencies in the ranges from 150kHz to 80MHz.
Frequency Range 150 kHz to 80MHz
Level Voltage level (e.m.f)
U
o
[dBµV]
U
o
[V]
1 120 1
2 130 3
3 140 10
X special special
Frequency Sweep
When using an individual frequency sweep, the step size shall not exceed 1% of the start and thereafter 1% of
the preceding frequency in the specified frequency range from 150kHz to 80 MHz thus it will result in 232 steps
in a decade or a total of 632 frequencies.