EMC-PARTNER IMU4000, User Manual, Page: 68 / 104

IMU4000
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Vertical deflection 5 V / division
On the CRO screen, the Burst must be visible. The single spike is not visible because the bandwidth is
insufficient.
7.4.2 ESD
1. Select 8 kV charging voltage and repetitions frequency 1Hz
2. Discharge to a ground plate. A spark of approximately 3 mm length must be visible.
7.4.3 SURGE
Verification as specified in the Basic Standard 1000-4-5.

Measurement of output voltage at no load

Measurement of short circuit current with short circuit output

Check that voltage and current waveforms are within the tolerances.

Calculate the source impedance from the peak voltage divided by the peak current.
1. Setting SURGE Test „Main Menu“
V = 1000 V; repetition 5s; coupling path L-N,
Attention!! The power cord must be removed from the inputs EUT Power 1 and 2 of the rear side.
2. Measuring points:
SURGE U-CRO for the voltage measurement at no load
SURGE I-CRO for current measurement at short circuit (make a short circuit on the front panel of the
IMU4000 using a banana plug type cable 1000 between L-N)
3. Setting measuring equipment
Time base 5 µs,
Vertical deflection 0.5 V / division
Definition of the wave-forms and their tolerances, see Chapter 14.1
7.4.4 Interruption
Verification as specified in the Basic Standard 61000-4-11.
Trigger the measuring equipment via the external trigger input. Different trigger level, see Chapter 1.2.7
7.4.5 Variation
1. Setting IMU4000 Setup Var 2s1s2s
2. Measuring point:
BNC output EUT Power U.
3. Setting measuring equipment
Time base 10 to 50 ms,
Vertical deflection 2 V / division
The voltage variation can be measured with the oscilloscope.