Siemens SIMATIC HMI KP Series Operating Instructions Manual page 27

Sinusoidal interference
The table below shows the EMC properties of the modules with respect to sinusoidal
interference. These specifications only apply when the HMI device meets the specifications
and directives regarding electrical installation.
Sinusoidal interference
HF radiation (in
electromagnetic fields) in
accordance with IEC 61000-
4-3:2006
RF interference current on
cables and cable shielding
conforming to IEC 61000-4-
6:2008
Emission of radio interference
The table below shows the emission values of electromagnetic interference conforming to
55011:2009, limit value class A, Group 1, measured at a distance of 10 m:
30 to 230 MHz
230 to 1000 MHz
Note
Before you connect the HMI device to the public power grid, ensure that it is compliant with
Limit Class B in accordance with EN 55022:2006.
KP8, KP8F
Operating Instructions, 10/2010, A5E03284305-01
Test values
80% amplitude modulation at 1 kHz

with 10 V/m in the range of 80 MHz to 1 GHz
with 3 V/m in the range 1.4 GHz to 2 GHz
with 1 V/m the range 2 GHz to 2.7 GHz
10 V/m with 50 % pulse modulation at 900 MHz

10 V/m with 50 % pulse modulation at 1.89 GHz
Test voltage 10 V at 80 % amplitude modulation of
1 kHz in the range from 9 kHz to 80 MHz
< 40 dB (V/m) quasi-peak
< 47 dB (V/m) quasi-peak
Safety instructions and approvals
2.5 Electromagnetic compatibility
Corresponds
to test
intensity
3
3
27