1.9 Handling Static Sensitive Devices
Figure 1-7 ESD Susceptible Caution Label
Active electronic components are susceptible to damage when exposed to static electrical charges. Damage to such
components may lead to outright failure or reduction in service life. Since the presence of static charges is not
always evident, it is essential that service personnel follow static control procedures at all times when handling
sensitive electronic components.
This section outlines static control precautions that must be followed when providing service support in the field.
Service support personnel should create a safe, static-free environment.
Service personnel must use a commercially available service kit for handling static-sensitive devices. The kit typically
includes:
l
Ground cord assembly
l
Alligator clip
l
Grounding wrist strap
l
Wrist strap tester
If a safe, static control environment cannot be created for a specific reason, the operator will ensure that
electrostatic discharge (ESD) items and personnel are at the same electrical potential as the equipment.
The electronic modules should only be removed from the ESD protective bag at the last moment, just before
installation when the operator is ready to do the replacement.
The operator should avoid touching any components or connectors on the module and should hold the module by
its edge or enclosure, as applicable.
1.9.1 ESD Protection/Grounding
All parts that are susceptible to damage by ESD will be marked using the following label. Refer to Figure 1-8 ESD
Label. Please follow the instructions below to ensure safety and to protect the parts from ESD damage.
Figure 1-8 ESD Label
1. Isolate the compressor power as described in Section 1.8 Electrical Isolation on page 22.
2. Clip the ESD strap ground clip to the compressor ground post. Refer to Figure 1-9 Mains Plate and
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