Siemens SIMATIC HMI OP 73micro Operating Instructions Manual page 24

Safety instructions and general notes
2.4 Electromagnetic compatibility
Sinusoidal interference
The table below shows the EMC properties of the modules with respect to sinusoidal
interference. A requirement for this is that the HMI device meets the specifications and
directives regarding electrical installation.
Table 2-2
Sinusoidal interference Test values
RF interference
(electromagnetic fields)
•
•
RF interference current
on cables and cable
shielding conforming to
IEC 61000-4-6
Emission of radio interference
Emission of electromagnetic interference conforming to 55011,
Limit value class A, Group 1, measured at a distance of 10 m:
From 30 to 230 MHz
From 230 to 1000 MHz
Additional measures
Before you connect an HMI device to the public network, ensure that it is compliant with Limit
Class B conforming to 55022.
24
Sinusoidal interference
conforming to
10 V/m with 80 % amplitude modulation of 1 kHz in the
IEC 61000-4-3
range from 80 MHz to 1 GHz and 1.4 GHz to 2 GHz
10 V/m with 50% pulse modulation at 900 MHz
10 V/m with 50% pulse modulation at 1.89 GHz
conforming to
IEC 61000-4-3
Test voltage 10 V with 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
Operating Instructions, 09/2007, 6AV6691-1DF01-0AB0
Corresponds to
test intensity
OP 73micro, TP 177micro (WinCC flexible)
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3