Tait TB7100, Руководство по обслуживанию

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80 General Information TB7100 Service Manual
© Tait Electronics Limited October 2005
ESD Precautions
Important
This equipment contains devices which are susceptible to
damage from static discharges. You must handle these
devices carefully and according to the procedures described
in the manufacturers’ data books.
Purchase an antistatic bench kit from a reputable manufacturer and install
and test it according to the manufacturer’s instructions.
Figure 6.1 shows a
typical antistatic bench set-up.
You can obtain further information on antistatic precautions and the dangers
of electrostatic discharge (ESD) from standards such as ESD S4.1-1997
(revised) or EN 100015-4 1994. The Electrostatic Discharge Association
website is http://www.esda.org/.
Storage and
Transport
of Items Always observe anti-static precautions when storing, shipping or carrying
the circuit boards and their components. Use anti-static bags for circuit
boards and anti-static bags or tubes for components that are to be stored or
shipped. Use anti-static bags or trays for carrying circuit boards, and foil or
anti-static bags, trays, or tubes for carrying components.
Anti-static
Workbenches
Use an anti-static workbench installed and tested according to the
manufacturer’s instructions. A typical installation is shown in
Figure 6.1 .
These benches have a dissipative rubber bench top, a conductive wrist strap,
and a connection to the building earth. The material of the bench top must
satisfy not only anti-static requirements but also the non-scratch
requirements mentioned above.
Figure 6.1 Typical antistatic bench set-up
to building ground or
mains ground via
1M
Ω
series resistor
conductive wrist strap
dissipative rubber
bench mat