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General information
2.2 Hazardous locations
The Sigma 900 MAX All Weather Refrigerated Sampler is not approved for use in
hazardous locations as defined in the National Electrical Code.
DANGER
Although some Sigma products are designed and certified for installation in
hazardous locations as defined by the National Electrical Code, many Sigma
products are not suitable for use in hazardous locations. It is the responsibility of
the individuals who are installing the products in hazardous locations to determine
the acceptability of the product for the environment. Additionally, to ensure safety,
the installation of instrumentation in hazardous locations must be per the
manufacturer's control drawing specifications. Any modification to the
instrumentation or the installation is not recommended and may result in life
threatening injury and/or damage to facilities.
Important Note: The following information is provided to guide users of Sigma SD900
Refrigerated Samplers, Sigma SD900 All Weather Refrigerated Samplers, and 900MAX
Samplers on the dangers and risks associated with entry into confined spaces.
2.2.1 Confined space entry
On April 15, 1993, OSHA’s final ruling on CFR 1910.146, Permit Required Confined
Spaces, became law. This new standard directly affects more than 250,000 industrial
sites in the U.S.A. and was created to protect the health and safety of workers in confined
spaces.
2.2.2 Definition of confined space
A Confined Space is any location or enclosure that presents or has the immediate
potential to present one or more of the following conditions:
•
An atmosphere with less than 19.5% or greater than 23.5% oxygen and/or more than
10 ppm Hydrogen Sulfide (H
2
S)
•
An atmosphere that may be flammable or explosive due to gases, vapors, mists,
dusts, or fibers
•
Toxic materials which upon contact or inhalation, could result in injury, impairment of
health, or death
Confined spaces are not designed for human occupancy. They have restricted entry and
contain known or potential hazards. Examples of confined spaces include manholes,
stacks, pipes, vats, switch vaults, and other similar locations.
Standard safety procedures must always be followed prior to entry into confined spaces
and/or locations where hazardous gases, vapors, mists, dusts, or fibers may be present.
Before entering any confined space check with your employer for procedures related to
confined space entry.
2.2.3 Industry Canada & FCC PART 15, Class "A" Limits
This device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions:
1.
This device may not cause harmful interference, and
2.
This device must accept any interference received, including interference that may
cause undesired operation.
Changes or modifications to this unit not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.
Goodnal STP ST041 Pre Treatment (Sigma 900 MAX All Weather Refrigerated Sampler) Vendor Manual
Q-Pulse Id VM373
Active 29/10/2013
Page 15 of 122
