Siemens SIMATIC IPC PX-39A Operating Instructions Manual page 21

TFT displays
Note
Burn-in effect and backlighting
The brightness of the backlighting deteriorates over the course of the screen's service life. A
permanent picture with bright screen objects leads to a burn-in effect.
• Use a screen saver to extend the life of the screen and the backlighting and to prevent the
burn-in effect.
Note
Defective pixels in the display
The manufacturing process of modern displays does not currently guarantee that all pixels of
the display are perfect. It is therefore inevitable that the display will contain a small number
of defective pixels. This does not limit the function in any way provided the defective pixels
are not all in one location.
Use in industrial environments
Note
Use in an industrial environment without additional protective measures
This device was designed for use in a normal industrial environment according to
IEC 60721-3-3.
ESD directive
Electrostatic sensitive devices can be labeled with an appropriate symbol.
NOTICE
Electrostatic sensitive devices (ESD)
The device contains electronic components which may be destroyed by electrostatic charge.
This can result in malfunctions and damage to the machine or plant.
Take corresponding precautionary measures before you open the device.
SIMATIC IPC PX-39A
Operating Instructions, 08/2022, A5E51699601-AA
Safety instructions
2.1 General safety instructions
21