HP ProDesk 600 G3 Base Model Microtower PC Bedienungsanleitung PDF herunterladen (Seite 22)

Preventing electrostatic damage to equipment

Many electronic components are sensitive to ESD. Circuitry design and structure determine the degree of

sensitivity. The following packaging and grounding precautions are necessary to prevent damage to electric

components and accessories.

●

To avoid hand contact, transport products in static-safe containers such as tubes, bags, or boxes.

●

Protect all electrostatic-sensitive parts and assemblies with conductive or approved containers

or packaging.

●

Keep electrostatic-sensitive parts in their containers until they arrive at static-free stations.

●

Place items on a grounded surface before removing them from their containers.

●

Always be properly grounded when touching a sensitive component or assembly.

●

Avoid contact with pins, leads, or circuitry.

●

Place reusable electrostatic-sensitive parts from assemblies in protective packaging or

conductive foam.

Personal grounding methods and equipment

Use the following equipment to prevent static electricity damage to equipment:

●

Wrist straps are exible straps with a maximum of one-megohm ± 10% resistance in the ground cords.

To provide proper ground, a strap must be worn snugly against bare skin. The ground cord must be

connected to the banana plug connector on the grounding mat or workstation and t snugly into it.

●

Heel straps/Toe straps/Boot straps can be used at standing workstations and are compatible with

most types of shoes or boots. On conductive oors or dissipative oor mats, use them on both feet with

a maximum of one-megohm ± 10% resistance between the operator and ground.

Static Shielding Protection Levels

Method Voltage

Antistatic plastic

Carbon-loaded plastic

Metallized laminate

1,500

7,500

15,000

Grounding the work area

To prevent static damage at the work area, observe the following precautions:

●

Cover the work surface with approved static-dissipative material. Provide a wrist strap connected to

the work surface and use properly grounded tools and equipment.

●

Use static-dissipative mats, foot straps, or air ionizers to give added protection.

●

Handle electrostatic-sensitive components, parts, and assemblies by the case or PCB laminate. Handle

them only at static-free work areas.

●

Turn o power and input signals before inserting and removing connectors or test equipment.

●

Use xtures made of static-safe materials when xtures must directly contact dissipative surfaces.

●

Keep work area free of nonconductive materials such as ordinary plastic assembly aids and Styrofoam.

●

Use eld service tools, such as cutters, screwdrivers, and vacuums, that are conductive.

14 Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation

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