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PITTSBURGH (October 31, 2005) — Wireless technology
is a safe, flexible and efficient method for notifying wastewater
treatment plant operators of important alarms and events – especially
when they are away from a standard HMI (Human Machine Interface),
according to Emerson Process Management. In a technical paper titled “Remote
Continuous Operator Monitoring of Plant Process Equipment,” David
L. Cooper II, lead technical engineer, and Alvan Plymire, fellow
engineer, both of Emerson’s Power & Water Solutions industry
center, will describe the design of a remote process monitoring
system using wireless technology at a large wastewater treatment
facility. The paper will be presented 4:30 p.m., Monday, Oct. 31,
at WEFTEC ’05, the 78th Annual Technical Exhibition and Conference
of the Water Environment Federation, taking place Oct. 29 – Nov.
2, 2005, in Washington, D.C.
The facility, with a capacity of 370 million gallons per day
and a peak wet weather capacity of more than 1 billion gallons
per day, is in the process of installing an integrated distributed
control system to monitor and control plant processes. Operators
in the facility’s new central control room (CCR) and three
area control centers (ACCs) use HMI displays to monitor the status
of wastewater treatment processes and equipment. Occasionally,
the operator must leave the CCR or ACCs for a plant walk down.
During this time, the operator cannot monitor or respond to alarms
or events. Two traditional options – utilizing an additional
operator for monitoring, or allowing brief periods of time when
the process is not closely monitored – carry potential
financial and environmental consequences.
"Remote
access via wireless technology allows the plant operator to monitor
and respond to process alarms and events, both while in the CCR
or ACC, as well as during rounds when he is away from a standard
HMI,” explained Cooper, who notes that rigorous
security measures that ensure safe and secure facility operation
will be a focus of the presentation.
According to Plymire, wireless
technology has matured in recent years and now provides practical
and secure functionality for process industries, such as wastewater
treatment. “From basic system event notification
via pagers or SMS (Short Message Service) to mobile telephone and
PDA-based browsers and fully functional operator workstations, plant
operators have a wide selection of options available for process
monitoring outside the control room,” said Plymire.
About
Emerson Process Management
Emerson Process Management (www.emersonprocess.com),
an Emerson business, is a leader in helping businesses automate
their production, processing and distribution in the power,
water and wastewater treatment, chemical, oil and gas, refining,
pulp and paper, food and beverage, pharmaceutical, and other
industries.
Emerson's Power & Water
Solutions division (www.emersonprocess-powerwater.com)
is a global supplier of advanced distributed process control
and information systems. The Pittsburgh-based company is a recognized
leader in developing plant-wide process control solutions for
the power generation, water treatment and wastewater treatment
industries. Power & Water
Solutions plays a key role in the Emerson mission of combining
superior products and technology with industry-specific engineering,
consulting, project management and maintenance services. Emerson
brands include PlantWeb® , Ovation®, SmartProcess®,
Fisher® , Micro Motion® , Rosemount®,
Mobrey®, Daniel®, DeltaV™, and AMS™Suite.
About
Emerson
Emerson (NYSE: EMR), based in St. Louis, is a global
leader in bringing technology and engineering together to provide
innovative solutions to customers through its network power,
process management, industrial automation, climate technologies,
and appliance and tools businesses. Sales in fiscal 2004
were $15.6 billion. For more information, visit www.GoToEmerson.com.
# # #
Ovation, SureService, SmartProcess, PlantWeb,
Fisher, Micro Motion, Rosemount, Mobrey, Daniel, AMS™ Suite
and DeltaV™ are
marks of Emerson Process Management. Other marks are the property
of their respective owners.
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