Product Data Sheet Contents

Transcription

1 Product Data Sheet Model 8742C Magnetic Flowmeter Transmitter with FOUNDATION Fieldbus THE MODEL 8742C Reduce process variability with high process noise detection Reduce commissioning and troubleshooting costs with grounding/wiring diagnostic Correct problems faster and limit unscheduled downtime with electrode signal fault diagnostic Display status and diagnostic messages on two-line by 16- character local indicator Explosion-proof housing with intrinsic safety output hazardous location certification Interoperability with FOUNDATION fieldbus host and other FOUNDATION fieldbus instruments Contents Specifications page 2 Hazardous Locations Certifications page 3 Dimensional Drawings page 4 Ordering Information page 5 Model 8742C Configuration Data Sheet page 7

2 Model 8742C Magnetic Flowmeter with FOUNDATION fieldbus Specifications FUNCTIONAL SPECIFICATIONS Flowtube Compatibility Compatible with Rosemount Model 8705 and Model 8711 Flowtubes. Flowtube Coil Resistance 25 maximum Flow Rate Range Capable of processing signals from fluids that are traveling between 0 and 40 ft/s (0 to 12 m/s) for both forward and reverse flow in all flowtube sizes. Conductivity Limits Process liquid must have a conductivity of 5 microsiemens/cm (5 micromhos/cm) or greater for the Model 8742C Magnetic Flowmeter. Excludes the effect of interconnecting cable length in remote mount transmitter installations. Power Supply Two external power supplies are required. One power supply is for the transmitter which produces power to the magnetic field in the flowtube. The other power supply is for FOUNDATION fieldbus communications. Transmitter Power V ac, Hz FOUNDATION Fieldbus Communications 9to32Vdc 11.5 ma minimum, 18.5 ma maximum Installation Coordination Installation (overvoltage) Category II Power Consumption 10 watts maximum Ambient Temperature Limits Ambient LImit 40 to 165 F ( 40 to 74 C) Storage Limit 40 to 185 F ( 40 to 85 C) Output Signal Manchester-encoded digital signal that conforms to IEC and ISA Reverse Flow The Model 8742C Magnetic Flowmeter detects and reports reverse flow. Software Lockout A write-lock switch on the electronics board and a software lockout in the resource function block are provided. Turn-on Time 30 minutes to rated accuracy from power up; 10 seconds communication from power interruption Start-up Time 0.2 seconds from zero flow Low Flow Cutoff Adjustable between 0 and 1 ft/s. Below selected value, output is driven to the zero flow rate signal level. Humidity Limits 0 100% RH to 150 F (65 C) Overrange Capability Signal output continues to 110% of upper range limit, then remains constant. Messages are supplied to the fieldbus network. Damping Adjustable between 0 and 255 seconds Flowtube Compensation Rosemount flowtubes are flow-calibrated and assigned a calibration factor at the factory. The calibration factor is entered into the transmitter, enabling interchangeability of flowtubes without calculations or a compromise in accuracy. Transient Protection EMC compliance, NAMUR NE21 recommendations- August 1998; EN (Industrial) electromagnetic compatibility (EMC) for process and laboratory apparatus FOUNDATION FIELDBUS SPECIFICATIONS Schedule Entries Six (6) Links Twenty (20) Virtual Communications Relationships (VCRs) Two (2) predefined (F6, F7) Four (4) configurable Block PERFORMANCE SPECIFICATIONS (System specifications are given using the unit at reference conditions.) Accuracy Model 8742C Transmitter with Model 8705 Flowtube System accuracy is ±0.5% of rate from 1to40ft/s(0.3to12m/s);below1.0ft/s (0.3 m/s), the system has an accuracy of ±0.005 ft/s ( m/s) Model 8742C Transmitter with Model 8711 Flowtube System accuracy is ±0.5% of rate from 3 to 40 ft/s (0.9 to 12 m/s); below 3 ft/s (0.9 m/s), the system has an accuracy of ±0.015 ft/s (0.005 m/s) Repeatability ±0.1% of reading Base Index Response Time 0.2 seconds maximum response to step change in input Stability ±0.1% of rate over six months Execution Time (ms) Resource (RB) 300 Transducer (TB) 400 Analog Input (AI) 1, Proportional/ Integral/Derivative (PID) 10, Ambient Temperature Effect ±0.25% of rate over operating temperature range Vibration Effect IEC 770 pipeline installation conditions 2

3 Rosemount Inc. PHYSICAL SPECIFICATIONS Conduit Connections Conduit Connections Availability ¾ 14 NPT Standard PG13.5 Optional Adapters CM20 Optional Adapters Screw terminals provided for all connections. Power wiring connected to transmitter only. Integrally mounted transmitters are factory wired to the flowtube. Mounting The transmitter is mounted integrally with the flowtube and does not require interconnecting cables. Environmental Ratings NEMA 4X, IEC 529, IP67, and pollution degree II Materials of Construction Low-copper aluminum housing Polyurethane paint Rubber cover gaskets Housing Al Housing with local display Weight 7lbs (3.2 kg) 7.5lbs (3.7 kg) Hazardous Locations Certifications Factory Mutual (FM) Approvals N0 Non-incendive, non-flammable fluid service for Class I, Division 2 Groups A, B, C, and D; Dust-ignition proof for Class II/III, Division 1 Groups E, F, and G hazardous locations. T4 temperature code N5 Non-incendive, Class I, Division 2 Groups A, B, C, and D; Dust-ignition proof for Class II/III, Division 1 Groups E, F, and G hazardous locations. T4 temperature code E5 Explosion-Proof for Class I, Division 1, Groups C and D. Dustignition proof Class II/III, Groups E, F, and G. Non-incendive for Class I Division 2, Groups A, B, C, D; factory sealed. Available for integrally-mounted Model 8711 Wafer Magnetic Flowmeter Flowtubes only. K5 Explosion Proof for Class I, Division 1, Groups C and D. Dust-ignition Proof for Class II/III, Division1, Groups E, F, and G. Non-incendive for Class I, Division 2, Groups A, B, C and D. Factory sealed with Intrinsically safe Fieldbus connections for use in Class I Division 1 Groups A, B, C and D. Class II/III, Division 1, Groups E, F, and G when connected in accordance with Rosemount drawings Factory sealed; Temp. Code T4 Canadian Standards Association (CSA) Approval N0 Suitable for use in Class I, Division 2 Groups A, B, C, and D; Dust-ignition proof for Class II/III, Division 1, Groups E, F, and G hazardous locations KEMA/CENELEC Approval N0 ED KD CE marking EEx d IIB T6 Flame-proof EExd[ia]IIBT6 Flame-proof with intrinsically safe Fieldbus connections Entity Parameters: V max =30V I max =300mA C i =4.4µF L i =0.0µH NOTE Additional approvals pending, consult the factory for availability. Fieldbus Entity Parameters: V max =30V I max =300mA C i =4.4µF L i =0.0µH 3

4 Model 8742C Magnetic Flowmeter with FOUNDATION fieldbus Dimensional Drawings Model 8742C Transmitter Dimensional Drawings (190) 6.48 (165) 4.97 (126) LOI Cover 1.88 (47) 1.53 (39) ¾ 14 NPT Conduit Connection (2 Places) NOTE Dimensions are in inches (millimeters) 3.00 (76) 5.82 (148) b01a, F01A, 1002G01A 4

5 Rosemount Inc. Ordering Information Model 8742C Code F Code AC Code N0 N5 E5 ED K5 KD Code A01 D01 D11 D21 C1 Product Description Magnetic Flowmeter Transmitter with FOUNDATION fieldbus (flowtube ordered separately) Transmitter Output FOUNDATION fieldbus protocol, comes with standard Analog Input Function block Power Supply Voltage V ac, Hz Hazardous Locations Certifications Factory Mutual (FM) Class I, Division 2 Class II/III Division 1, approval for nonflammable fluids; Canadian Standards Association (CSA) Class I, Division 2 Approval; CE Marking Factory Mutual (FM) Class I, Division 2, Class II/III Division 1, approval for flammable fluids Factory Mutual (FM) Class I, Division 1, Class II/III Division 1, explosion proof approval KEMA/CENELEC EEx d IIB T6, Flame-proof approval; CE Marking Factory Mutual (FM) Class I, Division 1, Explosion Proof with intrinsically safe Fieldbus connections KEMA/CENELEC EEx d[ia] IIB T6, Flame-proof approval with intrinsically safe Fieldbus connections; CE Marking Options PlantWeb Software Functions Proportional/Integral/Derivative (PID) function blocks Product and process diagnostics: grounding/wiring diagnostic, electrode fault diagnostic, and high process noise detection Product diagnostic: grounding/wiring diagnostic and electrode fault diagnostic Process diagnostic: high process noise detection Transmitter Options Custom Configuration (completed configuration data sheet (CDS) required with order) B4 Remote Mount for 2 Pipe Mount Bracket (transmitter junction box and mounting bracket included) (1) J1 CM 20 Conduit Adapter J2 PG 13.5 Conduit Adapter M5 Local Display Typical Model Number: 8742C F AC N 0 A 0 1 (1) Hazardous location certifications are pending. Consult the factory for availability. The listed prices are effective with date of issue and are subject to change without notice. All prices are F.O.B. shipping point. The prices are exclusive of all sales and use taxes. Minimum spares order is $

6 Model 8742C Magnetic Flowmeter with FOUNDATION fieldbus Tagging The flowtube and transmitter will be tagged, at no charge, in accordance with customer requirements. Standard SST tag is wired to the transmitter. Tag character height is in. (3.18 mm); 85 characters maximum. Tag may be permanently stamped on flowtube and/or transmitter nameplate upon request; 65 characters maximum. Ordering Procedure To order, select the desired flowtube and/or transmitter by specifying model codes from the ordering table. For remote transmitter applications, note the cable specification requirements. Flowtubes must be selected from Model 8700 Magnetic Flowmeter Product Data Sheet Standard Configuration Remote mount transmitters and transmitters ordered without attached flowtubes are shipped as follows: Engineering Units: ft/s Engineering calibration number: Custom Configuration (Option Code C1) If Option Code C1 is ordered, Configuration Data Sheet (CDS) must be submitted at the time of order. Cable Requirements for Remote Transmitters Description Signal Cable (20 AWG) Belden 8762, Alpha 2411 equivalent Coll Drive Cable (14 AWG) Belden 8720, Alpha 2442 equivalent Combination Signal and Coil Drive Cable (18 AWG) Belden 9368 equivalent P/N Remote transmitter installations require equal lengths of signal and coil drive cables. Integrally mounted transmitters are factory wired and do not require interconnecting cables. Lengths from 5 to 1,000 feet (1.5 to 300 meters) may be specified, and will be shipped with the flowtube. When ordering the combination cable, the lengths specified must be from 5 to 500 feet (1.5 to 150 meters). 6

7 Rosemount Inc. Model 8742C Configuration Data Sheet Unless otherwise specified, transmitter will be shipped as (default factory configuration). CONFIGURATION DATA SHEET Customer: P.O. No.: Transmitter Model No.: Line Item: SST Transmitter Tag No.: (72 characters maximum) Transmitter Tag (software): (8 characters maximum) OUTPUT INFORMATION (Minimum Information Necessary for Startup) Fluid Description = Units = Ft./Sec Ft/Min Ft/Hr Ft/d m/sec m/min m/hr m/d Gal/Sec Gal/Min Gal/Hr Gal/d m 3 /Sec m 3 /Min m 3 /Hr m 3 /d cm 3 /Sec cm 3 /Min cm 3 /Hr cm 3 /d Ft 3 /Sec Ft 3 /Min Ft 3 /Hr Ft 3 /d Liters/Sec Liters/Min Liters/Hr Liters/d Igal/Sec Igal/Min Igal/Hr Igal/d bbl/sec bbl/min bbl/hr bbl/d cf/sec cf/min cf/hr cf/d lb/sec lb/min lb/hr lb/d kg/sec kg/min kg/hr kg/d ton/sec ton/min ton/hr ton/d ston/sec ston/min ston/hr ston/d Hardware Jumpers A) Write Protect B) Simulate Off Off On On Flowtube Size = Flowtube Calibration No.: SST Flowtube Tag No.: Damping = minimum 0 seconds Density (required for mass and units only)= Specific Gravity kg/m 3 lb/ft 3 AUXILIARY OUTPUT INFORMATION (Normally Not Required for Typical Start-up) Coil Pulse Mode 5 Hz 37.5 Hz Empty pipe functionality Off On Low Flow Cutoff ft/sec 0.04 (minimum of 0 ft/sec for low flow cutoff) FLOWTUBE INFORMATION (Data Only Does Not Affect Transmitter Output) Descriptor: (32 characters maximum) Flowtube Serial No.: (32 characters maximum) Enter either the Rosemount flowtube model number or select one option from each of the following groups of options: Flowtube Model No.: Or: Electrode Material: 316 SST Titanium Alloy-20 Tantalum Platinum-Iridium Hastelloy C-276 Flange Material: Carbon Steel 304 SST 316L SST Wafer Electrode Type: Standard Bulletnose Standard and Grounding Electrodes Removable Flange Type: ASME B16.5 (ANSI) Class 150 ASME B16.5 (ANSI) Class 300 ASME B16.5 (ANSI) Class 600 ASME B16.5 (ANSI) Class 900 Wafer DINPN10 DINPN16 DINPN25 DINPN40 DINPN64 Liner Material: Teflon (PTFE) Tefzel (ETFE) PFA Linatex Polyurethane Neoprene Natural Rubber 7

8 PRINTED Rosemount, the Rosemount logotype, Fisher-Rosemount, Managing the Process Better, Delta V, SMART FAMILY, and PlantWeb are marks of one of the Fisher-Rosemount group of companies. HART is a registered trademark of the HART Communication Foundation. FOUNDATION is a trademark of the Fieldbus Foundation. Teflon and Tefzel are registered trademarks of E.I. du Pont de Nemours & Co. Hastelloy is a registered trademark of Haynes International. Linatex is a registered trademark of The Wilkinson Process Rubber Co. Ltd. All other marks are the property of their respective owners. Rosemount Inc Market Boulevard Chanhassen, MN USA Tel Fax (952) Rosemount, Inc. Fisher-Rosemount Limited Heath Place Bognor Regis West Sussex PO22 9SH England Tel 44 (1243) Fax 44 (1243) Fisher-Rosemount Singapore Pte Ltd. 1 Pandan Crescent Singapore Tel (65) Fax (65) Product documentation available at... IN U.S. A d , Rev. BA, 9/00