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The Science of Process Gas Flow Metering Advanced, Future Ready!
ST100 is an all-new, thermal dispersion technology gas flow meter that combines the most feature- and function- rich electronics 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 ST100 series transmitter is unsurpassed in meeting your current and future need for outputs, process information and communications. Whether your output needs are traditional 4-20mA analog, frequency/pulse, alarm relays or advanced digital bus communications such as HART, Foundation fieldbus, PROFIBUS, or Modbus, ST100 has you covered. ST100'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) have tested and verified ST100 Series' Foundation Fieldbus interoperability with their systems. What's more, should you ever need to change or upgrade, ST100 can be converted to any of these outputs with a simple card change, in the field. Now that's taking never obsolete to a whole new level!
Then there's ST100's display/readout, which brings new meaning to the term process information. Simply, the ST100's graphical display provides the most comprehensive information on the process measurements and conditions of any thermal flow meter available—see the ST100 close-up page for all the details.
To complete the solution, ST100 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 ST100. 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 ST100 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, ST100 offers a comprehensive selection of process connections and installation options.
ST100 Series Mass Flow Meter Specifications |
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Instrument |
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Measuring Capability |
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ST1XX Models: Flow rate, total flow and temperature STP1XX Models: Flow rate, total flow, temperature and pressure |
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Basic Style |
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ST100: Insertion, single-point ST100L: In-line (spool piece), single-point ST102A:Insertion, dual-element averaging system ST110: Insertion, single-point with VeriCal™ capability ST112A:Insertion, dual-element averaging system with VeriCal™ capability STP100: Insertion, single-point with pressure measurement STP102A:Insertion, dual-element averaging system with pressure measurement STP110: Insertion, single-point with pressure measurement and VeriCal™ capability STP112A:Insertion, dual-element averaging system with pressure measurement and VeriCal™ capability |
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Flow Measurement Range |
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Insertion Style:0.25 SFPS to 1000 SFPS [0,07 NMPS to 305 NMPS] ST100L In-line:0.0062 SCFM to 1850 SCFM [0.01 Nm3/h to 3,140 Nm3/h] – Air at standard conditions; 70 °F and 14.7 psia [0 °C and 1,01325 bar (a)] |
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Temperature Measurement Range |
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Up to 850 °F [454 °C] commensurate with element; see Operating Temperature in Flow Element specification |
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Pressure Measurement Range (STP Models) |
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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)] |
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Media All gases that are compatible with the flow element material | ||||||||||||||||||||||||||||
Accuracy |
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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 |
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Temperature Coefficient |
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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] |
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Repeatability |
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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 |
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Turndown Ratio |
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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 |
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Standard: ± 30 °F [± 16 °C] Optional: ± 100 °F [± 55 °C] |
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Agency Approvals | ||||||||||||||||||||||||||||
FM, FMc:ATEX: IECEx: Other: Class I, Division 1, Explosion proof, Groups B,C,D
Class II/III, Division 1, Dust ignition proof, Groups E,F,G Class I, Division 2, Nonincendive, Groups A,B,C,D Class II, Division 2, Nonincendive, Groups E,F,G Class III, Division 1,2, Dust ignition proof, indoor/outdoor Hazardous (Classified) locations Type 4x/IP67 (per NEC 500)EX d IIC Gb T6/T1 Ta= -40°C TO 65°C Ex tb IIIC T85°C/T450°C Db Ta= -40°C TO 65°C, IP67II 2 G Ex d IIC Gb T6/T1 Ta= -40°C TO 65°C, IP67NEPSI, GOST, CRN, Inmetro, CPA, CE marking Complies with Canadian Electrical code requirements of ANSI / ISA 12.27.01-2011 as a single seal device. |
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Ex-rated pressure transducer STP models:
FM,CSA:ATEX: Class 1, Division 1, Groups A,B,C,D
Dust ignition proof for Class 1, Division 1, Groups E,F,G2 G Ex d C T4, Ex d IIC T5, Ex d IIC T6 |
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Calibration Performed on NIST traceable flow stands and equipment | ||||||||||||||||||||||||||||
Flow Element |
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Material of Construction All-welded 316L stainless steel; optional Hastelloy C-276 | ||||||||||||||||||||||||||||
Operating Pressure |
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Insertion Types ST Models Metal ferrule: 1000 psig [70 bar (g)] Teflon ferrule: 150 psig [10 bar (g)] (200 °F [93 °C] maximum) Fixed Connection NPT: 1000 psig [70 bar (g)] Fixed Connection Flanged: per flange rating STP Models: per above or pressure sensor rating, whichever is less Inline Type (Model ST100L): 1000 psig [70 bar (g)] |
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Operating Temperature (Process) |
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ST100, ST102 Insertion Style All Flow Elements (– FPC, – FP and – S): -40 °F to 350 °F [-40 °C to 177 °C]
-40 °F to 500 °F [-40 °C to 260 °C] -40 °F to 850 °F [-40 °C to 454 °C] ST110, ST112 Insertion Style -40 °F to 350 °F [-40 °C to 177 °C]
-40 °F to 500 °F [-40 °C to 260 °C] STP Series Insertion Style Standard Pressure Sensor: -32 °F to 176 °F [0 °C to 80 °C]
Ex-rated Pressure Sensor: -22 °F to 212 °F [-30 °C to 100 °C] ST100L In-line Style -40 °F to 250 °F [-40 °C to 121 °C]
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Process Connection |
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Compression Fittings Models ST100 and ST102 only 3/4" or 1" male NPT, stainless steel with adjustable Teflon ferrule or metal ferrule; or flanged tapped and threaded for 3/4" fitting, ANSI or DIN flanges Compression fittings not available with 850 °F [454 °C] temperature versions of ST100 or ST102 Retractable Packing Glands Teflon packing required when process media is ozone, chlorine or bromine. Fixed Fittings / All Welded Insertion Length 1" to 6" [25 mm to 152 mm]
1" to 12" [25 mm to 305 mm] 1" to 21" [25 mm to 533 mm] 1" to 36" [25 mm to 914 mm] 1" to 60" [25 mm to 1524 mm] Fixed lengths from 2.6" to 60" [66 mm to 1524 mm] |
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ST100L In-line Flow Tube |
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Flow element is threaded and keyed in an in-line flow tube, calibrated and supplied as a spool-piece; options include low flow injection tubes and built-in Vortab flow conditioners for optimum low flow rangeability and performanceSize: 1" diameter tubing; 1", 1 1/2" or 2" schedule 40 pipe Length: 9 nominal diameters Process Connections: Female NPT, male NPT, ANSI or DIN flanges, or butt weld prepared Option: Flanges sized for flow tube |
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Remote Transmitter Configurations: |
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Transmitter may be mounted remotely from flow element using interconnecting cable (up to 1000' [300 m]) | ||||||||||||||||||||||||||||
STP Models:Additional Specifications on Pressure Sensor |
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Flow Transmitter/Electronics |
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Operating Temperature |
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0 °F to 150 °F [-18 ° to 65 °C] (all except dual element models) Dual-element Models: 0 °F to 130 °F [-18 ° to 54 °C] |
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Input Power |
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AC: 85 V to 265 Vac, 50 Hz to 60 Hz; Single element; 10 watt; dual element: 13.1 watt maximum DC: 24 Vdc ± 20%; Single element; 9 watt; dual element: 13.2 watt maximum |
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Outputs |
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Analog Standard: Three (3) 4-20 mA*, 0-1kHz, or 0-10 kHz pulse/frequency 4-20 mA outputs are user assignable to flow rate, temperature and/or if so equipped, pressure; outputs are user programmable to full flow range or subsets of full flow range; pulse/frequency output is user selectable as pulse for external counter/flow totalizer, or as 0-1 kHz or 0-10 kHz frequency representing flow rate* Outputs are isolated and have fault indication per NAMUR NE43 guidelines, user selectable for high (>21.0 mA) or low (<3.6 mA) Digital Standard:
Optional: USB, Ethernet
HART (comes standard with analog outputs, V7 compliant) Foundation fieldbus H1, PROFIBUS PA or Modbus RS-485 (* ST100 Series are certified by and registred with Hart and Foundation Fieldbus organizations) |
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Auxiliary Inputs |
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Two 4-20 mA input channels; used for FCI administered special configurations to allow ST100 Series to accept inputs from external devices such as gas analyzers, gas composition or pressure sensors | ||||||||||||||||||||||||||||
Enclosures |
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Main Transmitter / Electronics: NEMA 4X, IP67; polyester powder coated aluminum or optional in stainless steel; 4 conduit ports threaded as 1/2 " NPT or M20x1.5; 7.74 " x 5.40 " x 5.00 " [196.6 mm x 137.2 mm x 127 mm]Local Enclosure (Remote Configuration): Model ST100L, Models ST100 and ST102 without packing gland option: NEMA 4X, IP67; polyester powder coated aluminum; 2 conduit ports threaded as 1/2 " NPT or M20x1.5; 3.75 " x 4.00 " x 3.24 " [95 mm x 102 mm x 82 mm]
Models ST100 and ST102 with packing gland option; ST110, ST112 and all STP Models: NEMA 4X, IP67; polyester powder coated aluminum; 1 conduit port threaded as 1 " NPT or M20x1.5;
5.40 " x 4.82 " [137.2 mm x 122 mm] All models with stainless steel enclosure option: NEMA 4X, IP67; polyester powder coated aluminum; 1 conduit port threaded as 1 " NPT or M20x1.5;
5.40 " x 4.82 " [137.2 mm x 122 mm] |
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Data Logger |
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User programmable for readings per time increment to a maximum of 1 reading/second; removable, circuit board-mountable 2GB micro-SD (secure digital) memory card supplied; stores approximately 21M readings in ASCII comma-separated format |
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Readout/Display and Optical Touch Buttons (Optional) |
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Note: If readout/display not ordered, all user set-up and service interrogation must be done via computer |
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Other Options and Accessories |
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Vortab Flow Conditioners |
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Available for all line size applications; standard choice with Model ST100L (in-line) | ||||||||||||||||||||||||||||
Sun Shield, FCI part number 022378-01 |
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Shades main transmitter electronics and display from direct sunlight. 316LSS | ||||||||||||||||||||||||||||
VeriCal Kit, FCI part number 020849-03 |
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For use with VeriCal ready flow elements (models ST110, ST112, STP110, STP112) Portable test kit for controlling flow to elements, pressure regulation, digital pressure gauge and interconnection hose. |
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Ball Valves / Cable Glands |
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Element Coatings and Materials |
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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 |
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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, 1.013bar (a)] and straight pipe run 20d upstream, 10d downstream FCI is a continuous improvement company; specifications subject to change without notice |