Service Considerations; Cautions, Warnings And Safety Precautions; Esd Information; Generating Static - HP Z600 Maintenance And Service Manual

Service considerations

Review the following service considerations before replacing system components.

Cautions, warnings and safety precautions

Review the cautions, warnings, and safety precautions before accessing the workstation components.
Also, review the Safety and Regulatory Guide that came with the workstation for more information.

ESD information

Generating static

The following table shows that different activities generate different amounts of static electricity through
electrostatic discharge (ESD). Static electricity increases as humidity decreases.
Walking across carpet
Walking across vinyl floor
Motions of bench worker
Removing bubble pack from PCB
Packing PCBs in foam-lined box
CAUTION: Static electricity in the amount of 700 volts might degrade a product.
64 Chapter 5 Replacing components
Event
7,500V
3,000V
400V
7,000V
5,000V
Relative humidity
55% 40%
15,000V 35,000V
5,000V 12,000V
800V 6,000V
20,000V 26,500V
11,000V 21,000V
10%
ENWW