รหัสสินค้า : ST100A

ST100A Mass Gas Flow Meters

Mass Flow Meter Summary

The Science of Process Gas Flow Metering Advanced, Future Ready!

ST100A is high performance thermal dispersion technology gas flow meter that combines the most feature- and function- rich electronics, and FCI innovations such as Adaptive Sensing Technology™ (AST), with the industry's most advanced flow sensors to achieve a truly state-of-the-science flow metering solution for industrial processes and plant applications. 

The ST100A series transmitter is unsurpassed in meeting your current and future need for outputs, process information and communications. Whether your output needs are traditional 4-20 mA analog, frequency/pulse, or advanced digital bus communications such as HART, Foundation fieldbus, PROFIBUS, or Modbus, ST100A has you covered. ST100A's bus communications have been certified by and are registered devices with HART and Foundation Fieldbus. In addition, Emerson Process (Delta V), Yokogawa and ABB (800xA) (see page 6) have tested and verified ST100A Series' Foundation Fieldbus interoperability with their systems.  

Then there's ST100A's display/readout, which brings new meaning to the term process information. Simply, the ST100A's graphical display provides the most comprehensive information on the process measurements and conditions of any thermal flow meter available - see the ST100A close-up page for all the details. 

To complete the solution, ST100A flow elements and process connections ensure the best possible measurements and effective installation. FCI flow element designs have been perfected and optimized through six decades of R&D and real world experience in thermal dispersion technology and flow metering applications. With thermal dispersion there are no moving parts to foul or clog. This results in the greatest reliability and valuable savings on maintenance. 

Fast response, accuracy, repeatability and long-life are hallmarks of FCI flow elements available with ST100A. And, all new are the STP models, which add pressure measurement. Mass flow, temperature and pressure in a single tap-point thermal dispersion meter… An industry first and FCI exclusive! Then, consider other ST100A Series exclusives like dual-element measuring systems and FCI’s patented VeriCal option that provides significant cost and time savings by performing dynamic calibration verification in-situ, without ever removing the instrument from the process. To ensure both ease of installation and a match with your process conditions, ST100A offers a comprehensive selection of process connections and installation options.

Specifications

• Measuring Capability

ST1XXA Models: Flow rate, total flow and temperature 

STP1XXA Models: Flow rate, total flow, temperature and pressure

• Basic Styles

ST100A: Insertion, single-point

ST100AL: In-line (spool piece), single-point

ST102AA: Insertion, dual-element averaging system

ST110A: Insertion, single-point with VeriCal™ capability

ST112AA: Insertion, dual-element averaging system with VeriCal™ capability

STP100A: Insertion, single-point with pressure measurement

STP110A: Insertion, single-point with pressure measurement and VeriCal™ capability

• Flow Measurement Range

Insertion Style: 0.25 SFPS to 1000 SFPS [0,07 NMPS to 305 NMPS]

ST100AL In-line: 0.0062 SCFM to 838 SCFM [0.01 Nm3/h to 1425 Nm3/h]

• Air at standard conditions; 70°F psia and 14.7 psia [0°C and 1,01325 bar (a)]Temperature Measurement Range

Up to 850°F [454°C] commensurate with element; see Operating Temperature in Flow Element specification

• Pressure Measurement Range (STP Models)

Available Ranges:

0 psig to 50 psig [0 bar (g) to 3,4 bar (g)]

0 psig to 160 psig [0 bar (g) to 11 bar (g)]

0 psig to 500 psig [0 bar (g) to 34 bar (g)

0 psig to 1000 psig 0 bar (g) to 70 bar (g)]

• Media: all gases that are compatible with the flow element materials
• Accuracy:

Flow: ± 0.75% reading, ± 0.5% full scale

Temperature: ± 2 °F [± 1,1 °C] (display only, flow rate must be greater than 5 AFPS [1,5 m/sec])

Pressure (STP Models): ± 1.0% of span

• Temperature Coefficient

With optional temperature compensation; valid from 10% to 100% of full scale calibration

Flow: Maximum ± 0.015% of reading / °F up to 850°F [± 0.03% of reading / °C up to 454°C]

• Repeatability

Flow: ± 0.5% reading

Temperature: ± 1 °F [± 1°C] (flow rate must be greater than 5 AFPS [1,5 NMPS])

Pressure (STP Models): ≤ 0.1% of span

• Response Time (Flow):  1 sec. to 63% of final value (1 step change) typical with -FP or -FPC type flow element and AST electronics.
• Turndown Ratio

Normally factory set and field adjustable from 2:1 to 100:1 within calibrated flow range; up to 1000:1 possible with factory evaluation of application

• Temperature Compensation

Standard: ± 30°F [± 16°C]

Optional: ± 100°F [± 55°C]

• Calibration: Performed on flow stands using equipment traceable to NIST and ISO/IEC 17025

Options/Accessories

• Vortab Flow Conditioners

Available for all line size applications; standard choice with Model ST100AL (in-line)

• Sun Shield, FCI part number 022378-01

Shades main transmitter electronics and display from direct sunlight. 316LSS

• Ball Valves / Cable Glands
• Element Coatings and Materials

For service in highly corrosive gases or with erosive particulates, FCI can provide special coatings and wetted materials to protect the element and provide longer service life; examples include Kynar, Tantalum, and chromium carbide

• Certification and Testing Documentation

NACE, CMTR's, CRN registration, oxygen cleaning, welding qualifications, NIST certs, pressure testing, dye penetrant, and more available.

Specifications at reference operating conditions of 70°F, 14.7 psia [21.1°C, 1,013 bar (a)] and straight pipe run 20d upstream, 10d downstream FCI is a continuous improvement company; specifications subject to change without notice

Certification/Approvals