Honeywell ACM 150, Manual To Installation, Operation, And Maintenance

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ACM 150
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Technical Description and Theory of Operation
Overview of the ACM 150 monitor
The ACM 150 monitor can monitor any or all of the following locations:
• Sources of a potential chemical leak, such as gas cabinets, valve boxes, pipes,
process equipment, semiconductor tools and storage areas to alert emergency
response teams of a pending problem and/or to shut off the flow of gases
automatically.
• Plant emission ducts and stacks to determine the concentrations of various
chemicals being released from the facility.
• Workplace areas to confirm that employees are not being exposed to chemicals
and to alert workers should a leak spread into their breathing zone.
The ACM 150 samples the air in these locations and analyzes it for a large number
of gaseous chemicals. The samples are transferred to the ACM 150 monitor by 3/8
inch Teflon tubing or polypropylene. At or near the sample pick-up locations (tube
inlets), an air filter is installed to keep the sample lines free of particles. As an option,
a check valve can be added after the filter to allow the line to be pressurized with air
from the ACM 150. This enables an automatic leak check of every sample tube once
per day.
The ACM 150 monitor does not monitor all locations at once. It scans one area at a
time, in sequence until all active areas have been monitored. It has the capacity to
scan as many as 40 sample areas.