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Anderson Greenwood, Biffi, Crosby, FCT, Keystone, KTM, Vanessa products
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Emerson THUM adapter enables wireless transmission of measurement and diagnostic information

Emerson releases THUM Adapter for WirelessHART


Wireless HART

Emerson Process Management extends the predictive intelligence capabilities of PlantWeb digital architecture with the release of its Smart Wireless THUM Adapter. The THUM Adapter is easily installed on existing HART field instruments to free up diagnostics and process information that had previously been inaccessible in wired legacy system installations.

Most HART instruments have rich diagnostics and process data, yet this valuable information goes unused because older legacy systems are not equipped to receive HART communications. While it is often too expensive and complicated to access this data through traditional wired means, upgrading devices with the THUM Adapter is an easy and cost-effective way to “see” the valuable diagnostic and process information.

The THUM Adapter is a WirelessHART device that can retrofit on almost any two- or four-wire HART device, without special power requirements, to enable wireless transmission of measurement and diagnostic information. Devices with the THUM adapter operate as components of Emerson’s Smart Wireless self-organizing field networks, delivering field intelligence to enable improvements in quality, safety, availability, operations and maintenance costs.

WirelessHART Products

Extending predictive intelligence into new areas throughout the plant, the THUM opens the door for a vast range of process improvements in these key areas:

  • Gaining access to advanced diagnostics: the THUM allows access to advanced diagnostics through AMS Suite to tap into the power of in-situ meter verification for magnetic flowmeters and Coriolis meters, enabling significant operational improvements.
  • Enabling enhanced valve capabilities: Industry experts estimate that 75% of control valves are unnecessarily removed from service for maintenance. The THUM with AMS ValveLink software can easily enable Fisher FIELDVUE digital valve controllers with added capabilities including in-service valve testing, alert monitoring, and valve position trending.
  • Remotely managing devices and monitoring health: The THUM with AMS Suite allows customers to troubleshoot HART devices from their desk so they can optimize maintenance schedules, minimize downtime and reduce the time spent in hazardous areas. Online access to device diagnostics allows users to continually monitor devices and to know immediately if there is a problem before it causes a major upset.
  • Making any HART device wireless: The high cost of loop wiring due to remote locations or physical obstructions often prohibits the feasibility of installing devices for new measurement points. With the THUM, users can easily and cost-effectively transform any HART instrument into a wireless device to enable expanded visibility in applications such as tank gauging, radar level, ultrasonic level, flow, valves, liquid and gas analytical, pressure and temperature.
  • Efficiently gathering data from multivariable devices: Multivariable devices contain a wealth of information, but accessing all that information with legacy host systems can be difficult. The THUM wirelessly transmits device variables through any host system with a Smart Wireless Gateway, providing users with valuable information about their assets.

At the Chevron Phillips chemical plant in Sweeny, Texas, the Smart Wireless THUM adapter is enabling extra capabilities for Micro Motion Coriolis flowmeters that are used in fiscal accounting of product transfer between Chevron Phillips and an adjacent petroleum refinery.

“The required proving for fiscal transfer flowmeters is time consuming and a big expense for the plant,” said Stephen Fair, Instrument Measurement Planner at Chevron Phillips. “To ease this issue, we plan to confirm our ability to extend the time intervals between meter provings by trending data from the Micro Motion meter verification tool against data from proving reports. Adding to the extended interval savings, use of the Smart Wireless THUM Adapter on the remote flowmeters is making it possible for us to launch meter verification from the plant control room rather than making trips to the field. The adapters will also act as repeaters for other devices being added to the wireless network.”

In Alberta the ERCB under Directive 17 is forcing better measurement practices. In Directive 17, Section 2.6 Coriolis, magmeters and vortex meters with SMART Meter Verification are allowed to reduce prover frequency. With the THUM, device meter verifications can be collected from the field, by a single individual, without shutting in the process. This represents a tremendous cost saving.

The THUM can be purchased alone or as part of the Smart Wireless Field Starter Kit that comes pre-configured out of the box to immediately form a secure, robust self-organizing network. The Starter Kit includes a Smart Wireless Gateway, a 25-tag license for AMS Device Manager software, five to 100 wireless devices and Emerson-supplied SmartStart installation services.



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