Siemens MICROMASTER 440 Operating Instructions Manual page 10

Electrostatic Sensitive Devices (ESD)
Electrostatic Sensitive Devices (ESD)
The device contains components which can be destroyed by electrostatic
discharge. These components can be easily destroyed if not carefully handled.
Before opening the cabinet/enclosure in which the device is located, you must
electrically discharge your body and apply the appropriate ESDS protective
measures. The cabinet/enclosure should be appropriately labeled.
If you have to handle electronic boards, please observe the following:
• Electronic boards should only be touched when absolutely necessary.
• The human body must be electrically discharged before touching an electronic
board.
• Boards must not come into contact with highly insulating materials - e.g. plastic
parts, insulated desktops, articles of clothing manufactured from man-made
fibers.
• Boards must only be placed on conductive surfaces.
• Boards and components should only be stored and transported in conductive
packaging (e.g. metalized plastic boxes or metal containers).
• If the packing material is not conductive, the boards must be wrapped with a
conductive packaging material, e.g. conductive foam rubber or household
aluminium foil.
The necessary ESD protective measures are clearly shown again in the following
diagram:
• a = Conductive floor surface
• b = ESD table
• c = ESD shoes
b
e
c
a
Sitting
10
d
f
f
c
• d = ESD overall
• e = ESD chain
• f = Cubicle ground connection
d
f
a
Standing
MICROMASTER 440
Issue 10/06
b
d
e
f
c
a
Standing / Sitting
Operating Instructions
6SE6400-5AW00-0BP0
f