Prevent Electrical Discharge - Spectrum Controls 1769 Series User Manual

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2.5.2 Prevent Electrical Discharge

Electrostatic discharge can damage integrated circuits or semiconductors if
WARNING
you touch analog I/O module bus connector pins or the terminal block on
the input module. Follow these guidelines when you handle the module:
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Chapter 2: Installation and Wiring
Substitution of components may impair suitability for Class I,
Division 2. Do not replace components or disconnect equipment
unless power has been switched off or the area is known to be
non-hazardous.
Do not connect or disconnect components unless power has been
switched off or the area is known to be non-hazardous.
Device shall be installed in an enclosure which can only be
opened with the use of a tool.
All wiring must comply with N.E.C. article 501-4(b), 502-4(b), or
503-3(b), as appropriate for Class I, Class II, and Class III
equipment.
Touch a grounded object to discharge static potential.
Wear an approved wrist-strap grounding device.
Do not touch the bus connector or connector pins.
Do not touch circuit components inside the module.
If available, use a static-safe workstation.
When it is not in use, keep the module in its static-shield bag.
User's Manual Pub. 0300244-02 Rev. A
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