Instruction manual

ControlWave Gas Flow Computer (GFC Plus) Instruction Manual (CI-ControlWave GFC Plus)
Revised Feb-2013 Installation 2-3
Specifications
for Temperature,
Humidity and
Vibration
 See document 1660DS9b available on our website for detailed
technical specifications for temperature, humidity, and vibration for
the ControlWave GFC Plus.
 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 GFC Plus is
not exposed to a level of vibration that exceeds that provided in the
technical specifications.
2.1.1 Class I, Div 2 Installation Considerations
Underwriters Laboratories (UL) lists the ControlWave GFC Plus as
non-incendive and suitable only for use in Class I, Division 2, Group C,
and D hazardous locations and non-hazardous locations. Read this
chapter and Appendix A carefully before you install a ControlWave
GFC Plus 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).
WARNING
EXPLOSION HAZARD
Substitution of components may impair suitability for use in Class I,
Division 2 Group C and D environments.
When the ControlWave GFC Plus 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 disconnect equipment unless the power is switched off or the
area is known to be non-hazardous.