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ESD
ESD (Electrostatic Discharge) can damage sensitive electronics when they are
being handled or touched. The Annunciator has been protected against certain
levels of ESD when touching the outside case or terminals. The internal
electronics may be susceptible to ESD when handled, so proper care should be
given to any exposed electronics or circuit boards. The following guidelines should
be used to prevent any build-up of ESD and to minimize the products exposure to
it.
1.
Prevent static build-up by using conductive paints, carpeting, mats and
metal surfaces. Use appropriate grounding techniques, including wrist and heel
straps for personnel.
2.
Store or transport electronic devices, parts or assemblies in conductive
bags or bins.
3.
Only perform repairs at an appropriate repair station.
4.
When handling electronic assemblies or printed circuit boards, try to avoid
touching traces on the printed circuit board or static sensitive devices.
5.
Remember that tools are a source of static electricity. Only use grounded
soldering irons. Ground tools before using them to bleed off any charge build-
up.
6.
Discharge yourself before touching or handling any electronic assembly or
device. This can be done by touching a good ground point before touching any
electronic devices or assemblies. Preferably, discharge any static charge
through a high impedance such as a wrist or heel strap.
100
Series 90B ANNUNCIATOR INSTALLATION AND CONFIGURATION MANUAL
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