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1 class i, div 2 installation considerations, 2 installation overview, Class i, div 2 installation considerations -3 – Emerson Process Management Bristol ControlWave ExpressPAC User Manual

Page 17: Installation overview -3

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ControlWave ExpressPAC Instruction Manual (CI-ControlWave EPAC)

Revised Mar-2011

Installation

2-3

Specifications

for Temperature,

Humidity and

Vibration

 See document

420DS-7d

available on our website for detailed

technical specifications for temperature, humidity, and vibration for
the ControlWave ExpressPAC.

 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 pipe for mechanical

vibrations. Make sure that the ControlWave ExpressPAC 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 ExpressPAC as
non-incendive and suitable only for use in Class I, Division 2, Groups
C, and D hazardous locations and non-hazardous locations. Read this
chapter and Appendix A carefully before you install a ControlWave
ExpressPAC 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 Groups C and D environments.

When the ControlWave ExpressPAC 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.

2.2 Installation Overview

ControlWave ExpressPAC ships from the factory with all components
wired and mounted, except for the unit’s solar panel and primary
battery; these items are shipped separately.

Installing a ControlWave ExpressPAC involves several general steps:

1.

Installing and configuring the hardware. This includes:

a) Mounting the chassis on a panel, wall, or vertical pipe. (See

Section 2.2.1)