Siemens SIMATIC Mobile Client900RFN, Руководство по эксплуатации

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Technical specifications
10.2 Directives and declarations
Mobile Client900RXA
138
Operating Instructions, 07/2015, A5E36360099-AA
Emission of radio interference
The following table shows the emitted interference from electromagnetic fields in accordance
with EN 55011, Limit Class A, Group 1, measured at a distance of 10 m.
30 to 230 MHz < 40 dB (V/m) quasi-peak
230 to 1000 MHz < 47 dB (V/m) quasi-peak
Additional measures
Before you connect an HMI device to the public network, ensure that it is compliant with Limit
Value Class B in accordance with EN 55022.
10.2.2 ESD guideline
Definition of ESD
All electronic modules are equipped with large-scale integrated ICs or components. Due to
their design, these electronic elements are highly sensitive to overvoltage, and thus to any
electrostatic discharge. These electronic components are therefore specially identified as
ESDs.
Abbreviations
The following abbreviation is commonly used for electrostatic sensitive devices:
● EGB – Elektrostatisch Gefährdete Bauteile/Baugruppen (Germany)
● ESD – Electrostatic Sensitive Device (internationally recognized term)
Electrostatic charging
NOTICE
Electrostatic charging
ESDs may be destroyed by voltages far below the level perceived by human beings.
Voltages of this kind develop when a component or an assembly is touched by a person
who is not grounded against static electricity. Usually, it is unlikely that damage to an ESD
as a result of overvoltage is detected immediately but may become apparent only after a
longer period of operation.
Prevent electrostatic charging of your body before you touch the ESD!
Anyone who is not connected to the electrical potential of their surroundings is subjected to
electrostatic charging.