#EMReu11: Wireless acoustic transmitter

Rosemount® 708 Wireless Acoustic Transmitter provides instant and constant visibility to critical steam traps and pressure relief valves through a wireless monitoring system

Emerson’s Rosemount 708 Wireless Acoustic Transmitter

The Rosemount® 708 Wireless Acoustic Transmitter was introduced at Emerson’s European Press Conference in Brussels (B) in November. The new transmitter is part of Emerson’s “Smart Energy Initiative”, which combines its unmatched industrial energy expertise with advanced technologies that enable customers to lower energy costs and reduce emissions. The Rosemount 708 Wireless Acoustic Transmitter helps processing plants significantly reduce their energy expenses and environmental impact by combining temperature measurement with acoustic “listening” that provides unparalleled visibility into the state of steam traps and pressure relief valves.

Steam production is a significant operating expense for processing plants, and about 20 per cent of the steam leaving a boiler is typically lost through failing steam traps. The Rosemount 708 Wireless Acoustic Transmitter provides accurate measurement and constant visibility to steam traps without the effort of a manual inspection, enabling dramatic decreases in steam trap failures and fuel cost reductions of 10-20 per cent each year.

Pressure relief valves are another critical component of a plant. Manual monitoring for releases at pressure relief valves occurs periodically and does not indicate when or why a release occurred, increasing the chances of a safety, regulatory or environmental incident. The Rosemount 708 Wireless Acoustic Transmitter provides visibility to pressure relief valves by alerting operators when a valve has opened in as little as a single second. The time-stamped alerts can be compared against process conditions or environmental reporting to help identify the root cause of a release, so that preventive actions can be taken to reduce future emissions.

Backed by their proven experience in Smart Wireless field instrumentation, the new transmitter gives operators instant visibility to all of their critical steam traps and pressure relief valves through a non-intrusive, WirelessHART® monitoring system. This system allows monitoring throughout the plant, even in remote and hard-to-reach locations, with greater than 99% data reliability. Real-time alerts identify which areas need attention, so operators can make informed decisions on how to act.

The Rosemount 708 Wireless Acoustic Transmitter offers a fast and easy implementation and minimal on-going maintenance, taking advantage of the devices, tools, and knowledge already in the processing plant. The rugged transmitter features a 10-year battery life and engineered polymer housing that is intrinsically safe, weather proof and chemically resistant.

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About Eoin Ó Riain

Sé Read-out iris uaithoibríoch, ionstraim agus stiúradh na hÉireann agus an "Signpost" a áit ar an idirlín! Read-out is Ireland's journal of automation, instrumentation and control and the Instrumentation Signpost is it's web presence.
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