Class I, Div 2 Installation Considerations - Emerson ControlWave Instruction Manual

ControlWave I/O Expansion Rack Instruction Manual
Specifications
for Temperature,
Humidity and
Vibration

2.1.1 Class I, Div 2 Installation Considerations

Caution
WARNING
2-2
See document CWPAC available on our website for detailed

technical specifications for temperature, humidity, and vibration for
the ControlWave I/O Expansion Rack. This document is available
on our website at: http://www.emersonprocess.com/remote.
Ensure that the ambient temperature and humidity at the installation

site remains within these specifications. Operation beyond the
specified ranges could cause output errors and erratic performance.
Prolonged operation under extreme conditions could also result in
failure of the unit.
Check the mounted enclosure, panel, or equipment rack for

mechanical vibrations. Make sure that the ControlWave is not
exposed to a level of vibration that exceeds that provided in the
technical specifications..
Placement of the ControlWave in Class 1, Division 2 (Group A, B, C, and
D) hazardous locations requires that you select an appropriate
enclosure that meets NEMA Type 3X or 4X specifications.
Underwriters Laboratories (UL) lists the ControlWave I/O Expansion
Rack as non-incendive and suitable only for use in Class I, Division 2,
Group A, B, C, and D hazardous locations and non-hazardous locations.
Read this chapter and Appendix A carefully before you install a
ControlWave in a hazardous location.
Perform all power and I/O wiring in accordance with Class I, Division 2
wiring methods as defined in Article 501-4 (b) of the National Electrical
Code, NFPA 70 (for installations within the United States) or as
specified in Section 18-152 of the Canadian Electrical Code (for
installation in Canada).
EXPLOSION HAZARD
Substitution of components may impair suitability for use in Class I,
Division 2 environments.
When the ControlWave I/O Expansion Rack is situated in a hazardous
location, turn off power before servicing or replacing the unit and
before installing or removing I/O wiring.
Do not connect or disconnect equipment unless the power is switched
off or the area is known to be non-hazardous.
Installation Revised Aug-2015