Met One E-BAM, Руководство по эксплуатации

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E-BAM-9805 Manual Rev B.docx Page 33
4 SAMPLE SITE SELECTION
Use the following criteria when deciding on a sampling location for the E-BAM. Always consider the
safety and security of the unit as well as the suitability of the sampling environment.
4.1 Site Selection Requirements
Selection of a proper site for the E-BAM is critical for accurate measurements. In many cases, these
items must be correctly addressed for the collected data to be acceptable for regulatory
requirements, such as FEM, ARM or SPM methods. The following is a general list of site
considerations:
1. Inlet height
2. Spacing and clearance
3. Proximity to particulate sources, both mobile and stationary
4. Additional siting criteria or other considerations
These details should all be understood and considered when selecting a site. Consult any local
regulations and guidance documentation that may exist. In any case, the Code of Federal
Regulations takes precedence where applicable. The US EPA provides a variety of guidance
documents where site selection issues are addressed. Refer to the EPA website at
http://www.epa.gov/www.epa.gov .
4.2 Fall Hazard and Security Cautions
If the E-BAM is to be installed more than three meters above ground level, then the tripod legs must
be bolted down to prevent the unit from falling to the ground. An accidental fall of more than three
meters may compromise the containment of the radioactive source and the unit will need to be
returned to the factory for testing. In addition, dropping the E-BAM from any height will cause a
potential safety hazard for those below, and may damage the unit beyond repair.
The E-BAM tripod should be secured to the mounting surface in windy conditions to prevent the unit
from falling over, even at ground level. This is especially important in winds over 30 mph. If bolt-
down is not possible, then the tripod legs may be weighted down with sand bags to secure the unit.
Wind or fall damage is not covered under warranty.
The E-BAM should be secured from theft or vandalism to the extent possible. A limited- access
rooftop or a fenced lot are often good places to deploy the unit. Solar panels and batteries are also
highly susceptible to theft and should be secured.
4.3 Confined Sampling Locations
Because of the portable nature of the unit, the E-BAM is sometimes deployed in confined or non-
ambient locations to monitor highly localized particulate sources, such as tunnels, mines, quarries,
shopping malls, train stations, etc. Each of these applications are unique and present various
challenges. It is recommended that a Met One Instruments, Inc. representative be contacted to help
determine the suitability of the instrument if a custom deployment like this is being planned.