Siemens SIMATIC IPC347E, Руководство по эксплуатации

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Safety instructions
2.3 Headphones
SIMATIC IPC347E
Operating Instructions, 09/2018, A5E41134132-AE
21
ESD directive
Electrostatic sensitive devices can be labeled with an appropriate symbol.
NOTICE
Electrostatic sensitive devices (ESD)
When you touch electrostatic sensitive components, you can destroy them through voltages
that are far below the human perception threshold.
If you work with components that can be destroyed by electrostatic discharge, observe the
ESD directive in the technical specifications.
2.3 Headphones
CAUTION
Impaired hearing due to excessive sound pressure
The setting of the volume and the equalizer can increase the sound pressure in the
headphones. Other factors not mentioned by the manufacturer can also influence the
sound pressure, for example, the operating system, equalizer software, firmware and
driver.
Excessive sound pressure from headphones can result in impaired hearing or even loss of
hearing.
Set the volume control and equalizer to the lowest value before you put on the
headphones. Keep checking the volume control setting. Only use headphones and
software approved by the manufacturer.
CAUTION
Protection against access by unauthorized persons
An unauthorized user can operate the device incorrectly and bypass logon by restarting the
device.
Operator actions by unauthorized persons jeopardize operational reliability.
Take the following safety precautions:
•
Lock the front panel cover.
• Do not use keyboards with an on/off button (Power button).
•
If the device has an on/off button, assign the parameters of the function of the on/off
button to meet your requirements under Windows. You can find the settings in the
"Power Options" menu.