Dell Pro 14 Essential PV14255 handleiding

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For more information about the wrist strap and ESD wrist strap tester, see Components of an ESD Field Service Kit.

● Before transporting a static-sensitive component, place it in an anti-static container or packaging.

ESD Field Service kit

The unmonitored field service kit is the most commonly used service kit. Each Field Service kit includes three main components:

anti-static mat, wrist strap, and bonding wire.

CAUTION: It is critical to keep ESD-sensitive devices away from internal parts that are insulated and often

highly charged, such as plastic heat sink casings.

Working environment

. For example, deploying the kit for a server environment is different than for a desktop or laptop environment. Servers are

typically installed in a rack within a data center; desktops or laptops are typically placed on office desks or cubicles. Always

look for a large open flat work area that is free of clutter and large enough to deploy the ESD kit with additional space to

accommodate the type of computer that is being repaired. The workspace should also be free of insulators that can cause an

ESD event. On the work area, insulators such as styrofoam and other plastics should always be moved at least 12 inches or 30

centimeters away from sensitive parts before physically handling any hardware components.

ESD packaging

All ESD-sensitive devices must be shipped and received in static-safe packaging. Metal, static-shielded bags are preferred.

However, you should always return the damaged component using the same ESD bag and packaging that the new part arrived

in. The ESD bag should be folded over and taped shut and all the same foam packing material should be used in the original box

that the new part arrived in. ESD-sensitive devices should be removed from packaging only at an ESD-protected work surface,

and parts should never be placed on top of the ESD bag because only the inside of the bag is shielded. Always place parts in

your hand, on the anti-static mat, in the computer, or inside an ESD bag.

Components of an ESD Field Service kit

The components of an ESD Field Service kit are:

● Anti-Static Mat – The anti-static mat is dissipative and parts can be placed on it during service procedures. When using an

anti-static mat, your wrist strap should be snug and the bonding wire should be connected to the anti-static mat and to any

bare metal on the computer being worked on. Once deployed properly, service parts can be removed from the ESD bag and

placed directly on the anti-static mat. ESD-sensitive items are safe in your hand, on the anti-static mat, in the computer, or

inside an ESD bag.

● Wrist Strap and Bonding Wire – If an anti-static mat is not being used, the wrist strap and bonding wire should be

connected directly between your wrist and an exposed metal part of the hardware. If you are using an anti-static mat,

connect the wrist strap and bonding wire to the anti-static mat to ensure protection for any hardware placed on the mat.

The physical connection of the wrist strap and bonding wire between your skin, the anti-static mat, and the hardware is

known as bonding. Use only Field Service kits with a wrist strap, anti-static mat, and bonding wire. Never use wireless wrist

straps. Always be cautious that the internal wires of a wrist strap are prone to damage from normal wear and tear, and must

be checked regularly with a wrist strap tester in order to avoid accidental ESD hardware damage. It is recommended to test

the wrist strap and bonding wire at least once per week.

● ESD Wrist Strap Tester – The wires inside an ESD strap are prone to damage over time. When using an unmonitored ESD

kit, it is recommended to test the wrist strap regularly—ideally before each service session, and at a minimum, once per

week. The most reliable method for testing is with a wrist strap tester. To perform the test, connect the bonding wire of

the wrist strap to the tester while wearing the strap. Press the test button to initiate the check. A green LED indicates a

successful test, while a red LED and audible alarm signal a failure.

NOTE:

It is recommended to always use the traditional wired ESD grounding wrist strap and protective anti-static mat

when servicing Dell products. In addition, it is critical to keep sensitive parts separate from all insulator parts while servicing

the computer.

8 Working inside your computer

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