GWR Level Transmitter enables monitoring in remote locations.

Press Release Summary:

Designed for continuous level and interface measurement of liquids, Rosemount® 3308 features Smart Wireless technology based on IEC 62591 WirelessHART standard, eliminating need for cabling, trenching, conduit runs, and cable trays. Top-mounted, Guided Wave Radar transmitter is virtually unaffected by changing process conditions such as density, conductivity, temperature, and pressure. Since transmitter has no moving parts, no calibration is required and maintenance is minimized.  

Original Press Release:

Emerson Announces the World's First True Wireless Guided Wave Radar Level Transmitter

New IEC 62591 (WirelessHART™) Guided Wave Radar transmitter extends continuous level monitoring to difficult to reach locations

AUSTIN, TEXAS -- Emerson Process Management announces the industry’s first true wireless Guided Wave Radar (GWR) transmitter for continuous level and interface monitoring. The Rosemount® 3308 wireless GWR transmitter has been introduced to meet the need for accurate level monitoring in remote or difficult to reach locations where installing new cabling would be costly or impractical.

GWR transmitters are widely used for a broad range of measurement and control applications. These include process level measurement in vessels and storage tanks in refineries, oil fields, offshore platforms, chemical and industrial plants. For example, in well production applications, GWR transmitters are used to measure the level in tanks used for the storage of production, and the delivery water and injection chemicals. Accurate and reliable level instrumentation helps avoid the risk of oil spills that impact the environment and require expensive labor and equipment to clean up.

Emerson’s Smart Wireless technology significantly reduces installation and configuration time. Since there is no need for cabling, trenching, conduit runs and cable trays, costs are typically reduced by 30 percent or more compared with a wired solution. Once a wireless network has been established, any WirelessHART™ enabled device can join the network and take advantage of the benefits of an existing Smart Wireless infrastructure. This makes it easy to make changes or move devices around to meet specific requests.

The Rosemount 3308 Wireless GWR transmitter features enhanced configuration and diagnostics. It provides an easy and cost effective way to add visibility across a wide range of industries and applications, ensuring plant and operator safety and improving process efficiency. The transfer of unique and proven solutions from the wired Rosemount 3300 and 5300 Series GWRs has made long battery life possible without compromising measurement reliability. Device Dashboards help to reduce errors by providing a step-by-step configuration process.

Based on GWR technology, the Rosemount 3308 is a top mounted device for direct level and interface measurement of liquids. It is virtually unaffected by changing process conditions such as density, conductivity, temperature and pressure, and because it does not have moving parts, no calibration is required and maintenance is minimised. A wide range of process connections, probe styles, and accessories ensure application flexibility.

WirelessHART devices are typically installed and operating in just a few hours – reliably transmitting data via a wireless gateway to a control system or data historian. Status information and device diagnostics are easily accessible from the control room, reducing maintenance requirements and enhancing operator safety by eliminating unnecessary field trips.

Emerson’s Smart Wireless technology is based on the IEC 62591 WirelessHART standard. Real-time plant data acquired wirelessly can be used to optimise operations, improve worker and plant safety, and reduce emissions and other environmental impacts. Clocking more than 1 billion total hours of wireless operations across 10,000 systems, Emerson’s Smart Wireless technology has proven its reliability, enabled cost savings and significantly reduced installation time for tens of thousands of systems worldwide.

About Emerson Process Management

Emerson Process Management (, an Emerson business, is a leader in helping businesses automate their production, processing and distribution in the chemical, oil and gas, refining, pulp and paper, power, water and wastewater treatment, mining and metals, food and beverage, life sciences and other industries. The company combines superior products and technology with industry-specific engineering, consulting, project management and maintenance services. Its brands include PlantWeb™, Syncade™, DeltaV™, Fisher®, Bettis™, Micro Motion®, Rosemount®, Daniel™, Ovation™ and AMS Suite.

About Emerson

Emerson based in St. Louis, Missouri (USA), is a global leader in bringing technology and engineering together to provide innovative solutions for customers in industrial, commercial, and consumer markets around the world.  The company is comprised of five business segments: Process Management, Industrial Automation, Network Power, Climate Technologies, and Commercial & Residential Solutions.  Sales in fiscal 2012 were $24.4 billion.  For more information, visit

Rosemount is a mark of Emerson Process Management legal entities. WirelessHART is a mark owned by the HART Communication Foundation. All other marks are the property of their respective owners.


Peta Glenister, Emerson Process Management

+44 (0) 1753 75664,

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