EM TEST UCS 500Mx - ESD Test Application and Levels; ESD Direct and Indirect Discharge Application; ESD Test Level Matrix

EM TEST UCS 500 Series
Operating Manual V 3.05 53 / 57
12.4.2. Test application
Both discharge methods are mandatory air- and contact discharge.
Air discharges shall be applied to all points and surfaces of the EUT which are accessible to personnel during
normal usage.
Direct discharge to the EUT.
Contact discharge shall be applied to accessible,
metallic test points of EUT
It make sense to start with contact discharge and then
after with air discharge. The probability to destroy the
EUT with air discharge is higher, because the test
voltage is higher
Direct discharges to all accessible points of the surface
of the EUT : Cables, housings, display, keyboard, etc
Indirect test application to the vertical coupling
plane VCP
- At each side of the EUT
- 10cm distance to the EUT
Indirect application to the horizontal coupling plane
HCP
- At each side of the EUT
- 10cm distance to the EUT
Application for floor standing equipment
12.4.3. Test Level IEC 61000 - 4 - 2
Level Contact discharge Air discharge Number of discharges
1 2 2
2 4 4 > 10 Pulses positive
3 6 8 > 10 Pulses negative
4 8 15
X X X
The test voltage shall be increased from the minimum to the selected test level. All levels must be tested.
For more detailed information concerning the test setup respectively the test procedure please read the standard
IEC 61000-4-2.