Gas flowmeter modularizes transmitter functions

ST100 mass flowmeter from FCI creates upgradeable transmitter, future-proofs functionality.

05/02/2011


ST100 mass flowmeter from FCI creates upgradeable transmitter, future-proofs functionality.The new ST100 Series thermal mass flowmeter from Fluid Components International (FCI), combines high flow-sensing performance with a feature- and function-rich transmitter to deliver adaptability and value for gas flow measurement applications for today and tomorrow.

FCI says it developed the advanced ST100 Series flowmeters in response to discussions with a wide range of instrument, process, and plant engineers who wanted both more comprehensive measurement information as well as the flexibility to adapt to plant and process control technology they might deploy in the future. This new family is the result of those conversations.

In addition to its ability to measure, display, and transmit an extensive array of parameters, the company says it is the industry’s first thermal mass gas flow meter designed with a migration path to accommodate changing connectivity requirements. Whether the need is for conventional 4-20 mA with HART, frequency/pulse, alarm relays, or advanced digital bus communications such as Foundation fieldbus, Profibus, or Modbus, the new ST100 is the solution. Should a plant’s needs change over time or an upgrade prove desirable, the ST100 flowmeter adapts as necessary with a plug-in card replacement that can be changed by plant technicians in the field. This eliminates obsolescence as needs change.

FCI has also upgraded the ST100’s LCD display/readout, adding a graphical, multivariable, backlit LCD display to provide comprehensive information with continuous display of all process measurements and alarm status, plus the ability to interrogate for service diagnostics. Integral- and remote-display versions are available.

The unit measures a combination of gas mass flow rate, totalized flow, temperature, and pressure depending on the model family. It stores up to five unique calibration groups to accommodate broad flow ranges, differing mixtures of the same gas, multiple gases, and can obtain up to 1000:1 turndown.  An optional, patent-pending SpectraCal gas equivalency calibration method lets users select and switch between 10 common gases. Also standard is an on-board data logger with a removable 2 GB micro-SD memory card capable of storing 21 million readings.

With the ST100, FCI now claims the achievement of being the first thermal manufacturer to offer three different types of flow sensors, allowing users to choose the best approach for a given application. The FPC-style is a fast response type that features an integral, patent-pending flow conditioner and protective shroud optimized for compressed air and clean gas applications. The FP-style is a fast response, general purpose design with a protective shroud and is also the sensor used with FCI’s VeriCal in-situ calibration option. For applications with wet or dirty gases, or erratic flows, the unshrouded S-style facilitates easy cleaning and provides a smoothed response.

The ST100 Series includes two core model families: the ST and STP. The ST family measures both mass flow and temperature, and the STP family adds pressure, making it a triple-variable thermal flow meter, measuring flow, temperature, and pressure. Both families include single-point and dual-element models as configurations outfitted with FCI’s exclusive in-situ calibration option, VeriCal. 

Units can be calibrated to measure virtually any process gas, including wet gas, mixed gases, and dirty gases. The basic insertion style air/gas meter features a thermal flow sensing element that measures flow from 0.25 to 1,000 SFPS (0.07 NMPS to 305 NMPS) with accuracy of  ±0.75% of reading, ±0.5% of full scale.  

ST100 flowmeters are designed for applications with temperatures up to 850 °F (454 °C). The ST100 is agency approved for hazardous environments, including the entire instrument, the transmitter, and the enclosure. Instrument approvals (submitted and pending) include: FM and FMc Class 1, Division 1, Groups B, C, D, E, F, G;  ATEX and IECEx Zone 1, II 2 GD Ex d IIC T4. The enclosure is NEMA 4X/IP67 rated.

www.fluidcomponents.com

Visit the Control Engineering Process Control channel.

Edited by Peter Welander, pwelander@cfemedia.com



No comments
The Top Plant program honors outstanding manufacturing facilities in North America. View the 2015 Top Plant.
The Product of the Year program recognizes products newly released in the manufacturing industries.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
World-class maintenance: The three keys to success - Deploy people, process and technology; 2016 Lubrication Guide; Why hydraulic systems get hot
Your leaks start here: Take a disciplined approach with your hydraulic system; U.S. presence at Hannover Messe a rousing success
Hannover Messe 2016: Taking hold of the future - Partner Country status spotlights U.S. manufacturing; Honoring manufacturing excellence: The 2015 Product of the Year Winners
The digital oilfield: Utilizing Big Data can yield big savings; Virtualization a real solution; Tracking SIS performance
Getting to the bottom of subsea repairs: Older pipelines need more attention, and operators need a repair strategy; OTC preview; Offshore production difficult - and crucial
Digital oilfields: Integrated HMI/SCADA systems enable smarter data acquisition; Real-world impact of simulation; Electric actuator technology prospers in production fields
Improving flowmeter calibration; Selecting flowmeters for natural gas; Case study: Streamlining assembly systems using PC-based control; CLPM: Improving process efficiency, throughput
Putting COPS into context; Designing medium-voltage electrical systems; Planning and designing resilient, efficient data centers; The nine steps of designing generator fuel systems
Warehouse winter comfort: The HTHV solution; Cooling with natural gas; Plastics industry booming

Annual Salary Survey

Before the calendar turned, 2016 already had the makings of a pivotal year for manufacturing, and for the world.

There were the big events for the year, including the United States as Partner Country at Hannover Messe in April and the 2016 International Manufacturing Technology Show in Chicago in September. There's also the matter of the U.S. presidential elections in November, which promise to shape policy in manufacturing for years to come.

But the year started with global economic turmoil, as a slowdown in Chinese manufacturing triggered a worldwide stock hiccup that sent values plummeting. The continued plunge in world oil prices has resulted in a slowdown in exploration and, by extension, the manufacture of exploration equipment.

Read more: 2015 Salary Survey

Maintenance and reliability tips and best practices from the maintenance and reliability coaches at Allied Reliability Group.
The One Voice for Manufacturing blog reports on federal public policy issues impacting the manufacturing sector. One Voice is a joint effort by the National Tooling and Machining...
The Society for Maintenance and Reliability Professionals an organization devoted...
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
Maintenance is not optional in manufacturing. It’s a profit center, driving productivity and uptime while reducing overall repair costs.
The Lachance on CMMS blog is about current maintenance topics. Blogger Paul Lachance is president and chief technology officer for Smartware Group.
This article collection contains several articles on the vital role that compressed air plays in manufacturing plants.
This article collection contains several articles on the Industrial Internet of Things (IIoT) and how it is transforming manufacturing.
This article collection contains several articles on strategic maintenance and understanding all the parts of your plant.
click me