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Model 3095FTFlow Transmitter
MODEL 3095FT FEATURES ANDBENEFITS:
• Measurement of differentialpressure, static pressure, andprocess temperature in a single,compact package
• Gage sensor option allowseasier field calibration
• Greater billing accuracy throughindustry- leading ±0.075%differential and absolutepressure measurement accuracy
• Reduced maintenance, easierinstallation, and lower installedcost due to fewer pipepenetrations
• Reduced calibration with highlystable sensor design
• Greater meter flexibility with100:1 rangeability
• Low power design that allowsremote installation with optionalsolar power system
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INTRODUCTIONDeveloped in conjunction with the Gas Research
Institute, the multi-parameter Model 3095FT is ahigh-performance extension of the Rosemount®
pressure family. Where traditional transmittersmeasure just one process variable, the Model3095FT measures three variables simultaneously.
Originally introduced with digital HART protocolcommunications, the Model 3095FT FlowTransmitter now has two communication options:Model 3095FH with digital HART® communications,and the Model 3095FB with MODBUS® RTUcommunications.
MODEL 3095FH WITH HART PROTOCOLThe Model 3095FH Flow Transmitter is the
world’s most compact electronic flow measurement(EFM) device. In one package, this transmittermeasures differential pressure, absolute pressure,process temperature, and calculates flow. The threeprocess variables along with the calculated flow areavailable at all times in response to a single request.
Model 3095FH communications occur on a two-wire system using the digital HART (HighwayAddressable Remote Transducer) protocol, which isbased on the Bell 202 Frequency Shift Keying (FSK)standard. The Model 3095FH performs flowcalculations and relevant data storage in nonvolatilememory per applicable American Gas Association(A.G.A.), American Petroleum Institute (API), andGas Processors Association (GPA) orifice meter andelectronic flow measurement standards.
New Solutions forGas Flow Measurement
Traditionally, mechanical chart recorders havebeen installed in low-volume flow meteringapplications. However, chart recorders do notprovide the timeliness or accuracy needed tocompete in today’s gas industry. The following aresome of the problems associated with chart recorders:
• Chart recorders have high maintenance costs,including recommended monthly calibration,replacement pens and charts, and repairs toclocks and bellows.
FIGURE 1. Model 3095FT Flow Transmitter withRTD Assembly.
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Introduced in 1994, the Model 3095FH Flow Transmitterprovides a field-proven solution for natural gas flowmonitoring and custody transfer applications.
• Accurately measures differential pressure, absolutepressure, and process temperature
• Digital HART protocol communications
• Performs flow calculations per American GasAssociation (A.G.A.), American Petroleum Institute(API), and Gas Processors Association (GPA) orificemeter and electronic flow measurement standards
• User-configurable data logging that exceeds APIMPMS Chapter 21.1 requirements
• Most cost-effective EFM replacement for mechanicalchart recorders
New in 1996, the Model 3095FB Multivariable™
MODBUS Transmitter is the latest addition to the Model3095FT transmitter family.
• Accurately measures differential pressure, absolute(or gage) pressure, and process temperature
• Interfaces directly with RTUs (Remote TerminalUnits) or PLCs (Programmable Logic Controllers)using MODBUS RTU protocol communications
• Transmission speed is configurable from 1200 to9600 baud
• Easily integrates into existing SCADA applications
• Capable of multidropping up to 32 transmitters onthe same RS-485 bus
Model 3095FH withHART Protocol
Model 3095FB withMODBUS RTU Protocol
• Charts must be integrated to calculate flowvolumes.
• Chart recorders are prone to losing data orrecording inaccurate data–ink runs dry,painted charts, vibration effects, and errorsdue to moisture, temperature, drift, andmechanical wear.
• Integration is slow and cumbersome. Billing,accounting, and auditing may take weeks, andinaccurate or late data may result inprohibitive penalties.
With the Model 3095FH, chart recorders can nowbe replaced with state-of-the-art measurementtechnology with minimal disruption to your businessmethods. The Model 3095FH can be installed inmany types of flow monitoring and custody transferapplications, ranging from monitoring flow atremote locations, to a comprehensive system thatprovides on-site flow control and real-time datagathering.
Advantages with the Model 3095FH includesuperior accuracy, thereby eliminating penalties andreducing unaccounted-for natural gas. The Model3095FH also has high reliability, low maintenance,and no integration fees, all resulting in lowerlong-term operating costs.
MODEL 3095FB WITHMODBUS RTU PROTOCOL
Model 3095FB communications occur on a two-wire MODBUS RTU system using an RS-485 bus.The Model 3095FB measures the differentialpressure, absolute (or gage) pressure, and processtemperature, and communicates this informationreal-time to a connected Remote Terminal Unit(RTU).
The RTU then uses this process variableinformation to calculate flow, and thencommunicates the flow information back to thecustomer host system.
Other applications that can integrate the Model3095FB include Programmable Logic Controller(PLCs) and Distributed Control Systems (DCS).
Integrating the Model 3095FB into a natural gasmeasurement solution provides savings for thecustomer because one device measures three processvariables, resulting in reduced maintenance, easierinstallation, and lower installed cost because offewer pipe penetrations.
The Model 3095FB can also be used within a plantto measure process flows other than natural gas,such as steam, carbon dioxide, nitrogen, hydrogen,and other fluids.
Model 3095FT Flow Transmitter
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SYSTEM INTEGRATION
Model 3095FHThe Model 3095FH communicates via the industry
standard HART protocol, which uses the Bell 202Frequency Shift Keying (FSK) technique. Remotecommunication is accomplished by superimposing ahigh-frequency signal on top of the fixed outputsignal. Because all communication uses HART, theModel 3095FH does not provide a 4–20 mA outputsignal.
With its flexible HART protocol, the Model3095FH can meet many gas flow measurementneeds from a stand-alone instrument to a complextelemetry system. The integration of multi-parameter measurement, advanced flowcalculations, and audit trail capabilities into onecost-effective, compact package make the Model3095FH the ideal choice for orifice plate gas flowmeasurement installations.
FIGURE 2. Model 3095FH Communication Using aPersonal Computer.
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6A03
A
User-ProvidedPower Supply
Model 3095FH
Modem
R > 250 V
LaptopComputer
RemotePowerSupply
HARTProtocol
Model3095FH
RTD
FIGURE 3. Model 3095FH Single Site Metering Installation.
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12A
KEY FEATURES• Digital HART protocol• A.G.A. Flow Calculation• API Data Logging• Real Time Clock Battery
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Model 3095FBFigure 5 illustrates integrating the Model 3095FB
with an RTU System. Equipment needed for thistype of integration includes the Model 3095FB(supplied by Rosemount Inc.), an RTU system withRS-485 physical layer and MODBUS protocolcommunications capability, and a communicationstechnique allowing the RTU to transmit flow data tothe data collection center.
One cost effective communications method is touse land (telephone) lines. However, many flowmeasurement locations and custody transfer pointsare in locations that do not have telephone access, soradio, microwave and satellite communications areused as alternatives. Another communicationstechnique that is gaining popularity is integrationwith cellular phone technology, since cellular accessnow covers most of the United States.
Although this integration allows retrieval ofprocess variable data at any time, Model 3095FBconfiguration and calibration tasks would most oftenbe performed by a technician at the gasmeasurement site using the Model 3095FB UserInterface Software.
FIGURE 4. Model 3095FB Communication Using aPersonal Computer.
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6A03
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A(+)
B(-)
+
-
RS-485
PWR
To RS-485 BusModel
3095FB
User-ProvidedPower Supply -
+
Converter
DataCollectionCenterRemote
TerminalUnit
MODBUSRTUProtocol
Model3095FB
RTD
FIGURE 5. Integrating the Model 3095FB with an RTU System.
Satellite
Microwave
Radio
Cellular
Phone
Cu
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Sp
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Pro
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KEY FEATURES• MODBUS RTU Protocol• DP, SP, and PT Variables• 1200–9600 baud• Multidrop Capabilities
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MODEL 3095FHSOFTWARE FUNCTIONALITY
Flow Calculation and Data LoggingThe Model 3095FH is preprogrammed with orifice
meter flow computation algorithms to meet therequirements of the natural gas industry. The flowcalculations are performed according to 1992 A.G.A.Report No. 3/API MPMS Chapter 14.3, with A.G.A.Report No. 8/API MPMS Chapter 14.2 for thecompressibility factor.
The Model 3095FH fast update and computationfrequencies contribute to its high overall flowaccuracy. Sensor updates occur nine times persecond and flow calculations update once per second.
Gross versus Detail CharacterizationThe Model 3095FH calculates the gas
compressibility factor using either gross or detailcharacterization methods. Gross characterization isa simplified method that is acceptable for a narrowrange of pressure, temperature, and gascomposition. Detail characterization covers allpressure, temperature, and gas composition rangesfor which A.G.A. computes compressibility factors.Table 1 identifies the acceptable ranges for both ofthese characterization methods.
(1) The Model 3095FT sensor operating limits may limit the pressureand temperature range.
TABLE 1. Acceptable Ranges: Gross vs. DetailCharacterization Methods.
VariableGross
MethodDetail
Method
Pressure 0–1200 psia (1) 0–20,000 psia (1)
Temperature 32 to 130 °F (1) –200 to 400 °F (1)
Specific Gravity 0.554–0.9 0.07–1.52
Heating Value 477–1200BTU/SCF
0–1800BTU/SCF
Mole % Methane 45.0–100 0–100
Mole % Nitrogen 0–50.0 0–100
Mole % CO2 0–30.0 0–100
Mole % Ethane 0–10.0 0–100
Mole % Propane 0–4.0 0–12
Mole % Butanes 0–1.0 0–6
Mole % Pentanes 0–0.3 0–4
Mole % Hexanes Plus 0–0.2 0–Dew Point
Mole % Helium 0–0.2 0–3.0
Mole % Hydrogen 0–10.0 0–100
Mole % CO 0–3.0 0–3.0
Mole % Argon 0 0–1.0
Mole % Oxygen 0 0–21.0
Mole % Water 0–0.05 0–Dew Point
Mole % H2S 0–0.02 0–100
NOTEReference conditions are 14.73 psia and 60 °F for Gross Method.
Data LoggingOne significant advantage for the Model 3095FH
is its advanced logging capabilities. The Model3095FH sensor averages flow data continuously, andthe averaged data is then logged into the nonvolatilememory as part of the Model 3095FH audit trail.The Model 3095FH creates three types of logs:
• Daily Logs• Variable Logs• Event Logs
The daily log maintains at least 50 days of dailylogs for user-selected process variables andcalculated values. The variable log records the samedata as the daily log according to a user-selectedtime duration (between 1-99 minutes). The event logprovides a record of alarms, configuration changes,and significant occurrences that could affect the flowcalculation.
Figure 6 illustrates the 19 parameters availablefor logging by both the daily and variable log. Any orall of the parameters listed may be selected. Figure 7illustrates an actual variable log configured to logthe seven API required variables at 60-minuteintervals.
To meet existing billing system requirements, theModel 3095FH can calculate and log static pressureas absolute or gage, based on upstream ordownstream tap locations. However, flow is alwayscalculated using the upstream absolute pressuremeasurement for greatest accuracy.
In total, the Model 3095FH provides the user witha complete audit trail, which exceeds current APIMPMS Chapter 21.1 standards for electronic flowmeasurement systems.
FIGURE 6. Logged Variables Screen.
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FIGURE 7. Variable Log Example with Required API Variables.
Report Date: 94/10/17 15:43:44
Model 3095FT Data View V1.18 (1032)Archived VariableLog: 94/07/01 00:00:00 - 94/10/17 15:42:29 (92 Records)
Total Total Total Average Average Average DATE TIME FLOW FLOW TIME ENERGY DP SP PT SEQUENCE94/08/04 17:00:00 347.01 SCF 01:00:00 351944 BTU 124.94 InH2O 13.91 psi 83.47 DegC 494/08/04 18:00:00 347.64 SCF 01:00:00 352583 BTU 124.94 InH2O 13.95 psi 83.47 DegC 594/08/04 19:00:00 348.12 SCF 01:00:00 353070 BTU 124.93 InH2O 13.98 psi 83.48 DegC 694/08/04 20:00:00 348.40 SCF 01:00:00 353354 BTU 124.94 InH2O 14.00 psi 83.48 DegC 794/08/04 21:00:00 348.80 SCF 01:00:00 353760 BTU 124.94 InH2O 14.03 psi 83.52 DegC 894/08/04 22:00:00 349.09 SCF 01:00:00 354054 BTU 124.94 InH2O 14.05 psi 83.49 DegC 994/08/04 23:00:00 349.30 SCF 01:00:00 354267 BTU 124.94 InH2O 14.06 psi 83.43 DegC 1094/08/05 00:00:00 349.56 SCF 01:00:00 354531 BTU 124.94 InH2O 14.08 psi 83.45 DegC 1194/08/05 01:00:00 349.69 SCF 01:00:00 354663 BTU 124.94 InH2O 14.09 psi 83.48 DegC 1294/08/05 02:00:00 349.58 SCF 01:00:00 354551 BTU 124.94 InH2O 14.08 psi 83.50 DegC 1394/08/05 03:00:00 349.83 SCF 01:00:00 354805 BTU 124.94 InH2O 14.10 psi 83.52 DegC 1494/08/05 04:00:00 349.71 SCF 01:00:00 354683 BTU 124.94 InH2O 14.09 psi 83.53 DegC 1594/08/05 05:00:00 349.81 SCF 01:00:00 354784 BTU 124.95 InH2O 14.10 psi 83.53 DegC 1694/08/05 06:00:00 349.71 SCF 01:00:00 354683 BTU 124.94 InH2O 14.09 psi 83.55 DegC 1794/08/05 07:00:00 349.71 SCF 01:00:00 354683 BTU 124.95 InH2O 14.09 psi 83.55 DegC 1894/08/05 08:00:00 349.93 SCF 01:00:00 354906 BTU 124.95 InH2O 14.10 psi 83.53 DegC 1994/08/05 09:00:00 349.85 SCF 01:00:00 354825 BTU 124.95 InH2O 14.10 psi 83.54 DegC 2094/08/05 10:00:00 349.91 SCF 01:00:00 354886 BTU 124.95 InH2O 14.10 psi 83.54 DegC 2194/08/05 11:00:00 349.72 SCF 01:00:00 354693 BTU 124.95 InH2O 14.09 psi 83.54 DegC 2294/08/05 12:00:00 349.68 SCF 01:00:00 354652 BTU 124.95 InH2O 14.09 psi 83.53 DegC 23
Configuration and SecurityThe Model 3095FH has extensive configuration
capabilities, including gas properties, gascomposition, calculation methods, flow parameters,LCD display, and multiple audit trails. Figure 8illustrates the Model 3095FH flow parametersconfiguration screen. In addition to theseconfigurable parameters, the transmitter softwarecontains information that is not user changeable:sensor limits, minimum span, fill fluid, materials ofconstruction, module serial number, and transmittersoftware revision level.
The Model 3095FH system includes two types oftransmitter security to prevent unauthorized oraccidental changes to the configuration. Mounted onthe electronics board is a transmitter securityswitch, which when enabled, prevents changes to thetransmitter configuration.
FIGURE 8. Flow Parameters Configuration Screen.
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In addition, the Model 3095FH User InterfaceSoftware provides three levels of password security:System Administrator (one password), Maintenance(three passwords), and Operation (six passwords).
USER INTERFACESOFTWARE PACKAGES
The Model 3095FH User Interface Software is aseparate software package that allows easyconfiguration of the Model 3095FH FlowTransmitter and retrieval of audit trail data. Thistool serves as a communications interface to theModel 3095FH.
The Model 3095FB User Interface Software is aseparate software package that allows configurationand diagnostics of the Model 3095FB MultivariableMODBUS transmitter.
For best performance of either software package,the following computer hardware and software isrecommended:
• DOS-based 386 computer or above• 4 MB RAM minimum• Windows 3.1 or higher• DOS 3.1 or higher• Mouse or other pointing device• 2 MB of free hard disk space
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LCD MeterThe optional Model 3095FH LCD meter (Figure 9)
provides local display of process variables, calculatedvariables, and transmitter diagnostic messages.
During normal operation, the display changesevery three seconds to display user-selectedparameters.The LCD meter uses two displays toindicate a parameter’s value, engineering unit, andparameter name:
Each display lasts three seconds, with a briefblank display before the LCD meter shows the nextparameter. The LCD scrolls through the entire list ofselected parameters before repeating the displays.
Any of the following variables may be selected forthe LCD Display:
Flow Rate Heating ValueDifferential Pressure Mole Percent CO2Totalized Flow Today Mole Percent N2Totalized Flow Yesterday Orifice Bore at 68 °FStatic Pressure Date and TimeProcess Temperature Specific GravityEnergy Flow Rate Totalized Energy TodayTotalized Energy Yesterday
The LCD meter also automatically displays anyalarm conditions that might occur during operation.
PROVEN TECHNOLOGYThe Model 3095FT benefits from the proven
capacitance cell technology featured in our Model3051C Differential Pressure Transmitter and thepatented piezoresistive silicon sensor of the Model3051C Absolute Pressure Transmitter. The digitaltechnology employed in the Model 3095FT ensuresmaximum accuracy and rangeability and remotedata communications capability.
The extensive use of application-specific integratedcircuits (ASICs) and surface-mount electronictechnology significantly reduces the size and weightof the transmitter. This flow transmitter actuallyperforms the same measurement and computingfunctions of other electronic flow measurementdevices over 10 times its size and weight.
Figure 10 shows a functional block diagram of theModel 3095FT Flow Transmitter. Its functionality isdivided between the sensor module and theelectronics module. The sensor module performs alltasks related to measuring and correcting theprocess variables, while the electronics moduleperforms the flow calculation, data logging, andoutput functions.
The Multi-Parameter Sensor ModuleThe advanced sensor module of the Model 3095FT
measures three process variables simultaneously.The multi-parameter module incorporates a high-accuracy capacitance sensor for differentialpressure, a high-accuracy piezoresistive sensor forabsolute pressure, and a four-wire RTD input forprocess temperature measurement. In addition, thesensor electronics convert the process variablesdirectly into digital format for further correction andcompensation within the sensor module.
Differential PressureIn the differential pressure sensor, process
pressure is transmitted through the isolatingdiaphragm and fill fluid to the sensing diaphragm inthe center of the capacitance cell. Capacitor plateson both sides of the sensing diaphragm detect itsposition. The differential capacitance between thesensing diaphragm and the capacitor plates isdirectly proportional to process pressure.
40.203DP
40.203IN_H2O
Parameter Value
Engineering Unit Parameter Name
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MeterCover
FIGURE 9. LCD Meter Exploded View.
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SENSOR MODULE
Analog-to-DigitalSignal Conversion
RTDInput
ELECTRONICS MODULE
CapacitiveDP Sensor
Pressure Pressure
ModuleTemperature
PiezoresistiveAP Sensor orGP Sensor(1)
PersonalComputer
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OutputMicroprocessor• Damping• Diagnostics• Communication• Rerange• Flow Calculation(2)
HART (Model 3095FH)or
MODBUS RTU(Model 3095FB)
RAM
Non-Volatile Memory• Transmitter Configuration
• Range Values• Logging(2)
SensorMicroprocessorand Memory• CorrectionCoefficients
• Module Info.• Sensor Linearization
• Diagnostics
FIGURE 10. Model 3095FT Flow Transmitter Block Diagram.
(1) Model 3095FB only.(2) Model 3095FH only.
Absolute PressureThe absolute pressure sensor is fabricated
utilizing a processing method called chemical vapordeposition (CVD). This technique, which is superiorto other technologies that are vulnerable to driftover time, isolates the sensing element from thesilicon substrate to achieve high accuracy andrepeatability.
The absolute sensor consists of a Wheatstonebridge circuit made from polysilicon resistorsdeposited on a silicon substrate. The absolutepressure sensor is hydraulically connected to thehigh pressure side of the transmitter. Processpressure is transmitted through the fill fluid to thesensing element, creating a very small deflection ofthe silicon substrate. The resulting strain on thesubstrate changes the bridge resistance inproportion to the pressure applied.
Gage Pressure (Model 3095FB only)The gage pressure sensor is fabricated using the
same manufacturing techniques and sensortechnology as the absolute pressure sensor. However,the reference side of the silicon substrate is ventedto atmosphere instead of concealed in the vacuum.
Process TemperatureProcess temperature is measured using an input
connection on the sensor module for a standardresistance temperature device (RTD). RosemountInc. offers a special shielded cable with connectorfor connecting the RTD input to the Model 3095FT(see ordering information for details).
The Model 3095FT can accept a signal from any100-ohm platinum RTD that conforms to IEC-751Class B. The Model 3095FT Flow Transmitter can besupplied with an optional Rosemount Series 68 or 78RTD temperature sensor. For further information onRosemount temperature sensors and accessoryhardware, contact your Fisher-Rosemount SalesEngineer.
Digital CompensationThe Model 3095FT uses a dedicated micro-
processor, located inside the sensor module,to linearize and correct the raw sensor outputs.To ensure premium performance, this sensormicroprocessor uses the absolute (or gage) pressuremeasurement to compensate for zero line pressureeffects and an internal temperature measurementto compensate for thermal effects.
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FIGURE 11. Exploded View of Model 3095FH.
Housing
O-ring
Terminal Block
Cover
Housing Locking Screw
Electronics Board
Nameplate
Sensor Module
Coplanar Flange
OptionalFlange Adapters
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Bolts
Real-Time Clock Battery(Model 3095FH only)
Drain/Vent Valve
CertificationLabel
RTD Connector
NOTEModel 3095FB Multivariable MODBUS Transmitters require adifferent housing to support a new terminal block and a newelectronics board. Model 3095FB Transmitters also do notinclude a real-time clock battery.
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FIGURE 12. Dimensional Drawings of Model 3095FH.
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05A
Meter Cover(Optional)
0.75 (19)Clearance for
Cover Removal
TransmitterCircuitry
This Side
Nameplate
Drain/VentValve
½–14 NPT on Optional MountingAdapters. Adapters Can BeRotated to Give Connection Centersof 2.00 (51), 2.125 (54), or 2.25 (57).
6.4(163)
½–14 NPT ConduitConnection (Two Places)
0.75 (19)Clearance forCover Removal
TransmitterConnectionsThis Side 6.93
(176)
8.08(212)
¼–18 NPT on Coplanar Flangefor Pressure Connection withoutthe Use of Mounting Adapters
CertificationLabel
3.20(81)
4.82(122)
4.15(105)
HousingRotation
Set Screw
NOTEDimensions are in inches (millimeters).
3.77(96)
NOTEDimensions for Model 3095FB Multivariable MODBUS Transmitters areslightly different than illustrated above. Consult factory for details.
2.81(71)
4.73(120)
1.28 (33)
4.15(105)
2.82(72)
6.93(176)
6.15(156)
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, C04
A
FIGURE 13. Mounting Configurations for Model 3095FH.
5.98(152)
3.27(83)
NOTEDimensions are in inches (millimeters).
PIPE MOUNTINGPANEL MOUNTING
NOTEDimensions for Model 3095FB Multivariable MODBUS Transmitters areslightly different than illustrated above. Consult factory for details.
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MODEL 3095FT SPECIFICATIONS
Model 3095FH Functional SpecificationsServiceNatural gas.Differential Sensor
RangeCode 2: 0–2.5 to 0–250 inH2O (0–0.62 to 0–62.2 kPa).LimitCode 2: –250 to 250 inH2O (–62.2 to 62.2 kPa).
Absolute SensorRangesCode 3: 0–8 to 0–800 psia (0–55.16 to 0–5515.8 kPa).Code 4: 0–36.26 to 0–3,626 psia (0–250 to
0–25000 kPa).LimitCode 3: 0.5 to 800 psia (3.4 to 5515.8 kPa).Code 4: 0.5 to 3,626 psia (3.4 to 25000 kPa).
OutputTwo-wire fixed 8.5 mA with digital HART protocolsuperimposed on current signal.Power SupplyExternal power supply required. Transmitteroperates on terminal voltage of 7.5–35 V dc with aconstant average operating current of 8.5 mA.Load LimitationsMaximum loop resistance is determined by thevoltage level of the external power supply, asdescribed by:
Zero SuppressionCan be set anywhere within the sensor limits as longas the span is greater than or equal to the minimumspan, the lower range value does not exceed thelower range limit, and the upper range value doesnot exceed the upper range limit.NOTEFlow calculations will cease with negative DP readings.
1964
250
07.5 11.0
Power Supply Voltage35
Load
(O
hms)
Operating Region
Communication requires a minimum loop resistance of 250 ohms.
Max. Loop ResistancePower Supply Voltage 7.5–
0.014---------------------------------------------------------------------------≤
Failure Mode AlarmIf self-diagnostics detect a gross transmitter failure,the HART output registers an alarm with eachmessage.Hazardous Locations Certifications
Factory Mutual (FM) ApprovalsA Explosion Proof for Class I, Division 1, Groups
B, C, and D. Dust-Ignition Proof for Class II,Division 1, Groups E, F, and G. Suitable forClass III, Division 1, indoor and outdoor(NEMA 4X) hazardous locations. FactorySealed. Provides non-incendive RTDconnections for Class I, Division 2, Groups A,B, C, and D. Install per Rosemount drawing03095-1025.
B Intrinsically Safe for use in Class I, Division 1,Groups A, B, C and D; Class II, Division 1,Groups E, F, G; Non-incendive for Class I,Division 2, Groups A, B, C, and D. Tempera-ture Code T4. NEMA 4X. Factory Sealed.Install per Rosemount drawing 03095-1020.
Canadian Standards Association (CSA)ApprovalsC Explosion Proof for Class I, Division 1, Groups
B, C, and D. Dust-Ignition Proof for Class II,Division 1, Groups E, F, and G. Suitable forClass III, Division 1, indoor and outdoorhazardous locations, CSA enclosure Type 4X.Factory Sealed. Provides non-incendive RTDconnection for Class I, Division 2, Groups A, B,C, and D. Approved for Class I, Division 2,Groups A, B, C, and D. Install in accordancewith Rosemount Drawing 03095-1024.
D Intrinsically Safe for Class I, Division 1,Groups A, B, C, and D when installed inaccordance with Rosemount drawing 03095-1021. Temperature Code T3C.
Over Pressure Limit0 psia to two times the absolute pressure sensorrange with a maximum of 3,626 psia.Static Pressure LimitOperates within specifications between static linepressures of 0.5 psia and the URL of the absolutepressure sensor.Temperature Limits
Process:–40 to 185 °F (–40 to 85 °C).Ambient:–40 to 185 °F (–40 to 85 °C).Storage:–50 to 212 °F (–46 to 100 °C).
Humidity Limits0–100% relative humidity.
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LCD MeterOptional dual-row, 11-digit, alphanumeric, scrollingliquid crystal display.
LCD Meter Temperature LimitsOperating: –13 to 185 °F (–25 to 85 °C).Storage:–40 to 185 °F (–40 to 85 °C).
Turn-on TimeProcess variables will be within specifications lessthan 60 seconds after power is applied totransmitter.DampingResponse to step input change can be user-selectablefrom 0 to 7 seconds for one time constant. This is inaddition to sensor response time of 0.2 seconds.Real-Time Clock Accuracy±2 minutes per month at reference conditions.
Model 3095FB MODBUS RTUFunctional SpecificationsServiceGas or liquid.Differential Sensor
RangeCode 2: 0–2.5 to 0–250 inH2O (0–0.62 to 0–62.2 kPa).Code 3: 0–10 to 0–830 inH2O (0–2.48 to 0–206 kPa).LimitCode 2: –250 to 250 inH2O (–62.2 to 62.2 kPa).Code 3: –830 to 830 inH2O (–206 to 206 kPa).
Absolute SensorRangesCode 3: 0–8 to 0–800 psia (0–55.16 to 0–5515.8 kPa).Code 4: 0–36.26 to 0–3,626 psia (0–250 to
0–25000 kPa).LimitCode 3: 0.5 to 800 psia (3.4 to 5515.8 kPa).Code 4: 0.5 to 3,626 psia (3.4 to 25000 kPa).
Gage SensorRangesCode C: 0–8 to 0–800 psig (0–55.16 to 0–5515.8 kPa).Code D: 0–36.26 to 0–3,626 psig (0–250 to
0–25000 kPa).LimitCode C: 0 to 800 psig (0 to 5515.8 kPa).Code D: 0 to 3,626 psig (0 to 25000 kPa).
Power SupplyExternal power supply required. Transmitteroperates on terminal voltage of 7.5–24 V dc.
Power ConsumptionQuiescent supply current 10 mA typical.Transmitting supply current not to exceed 100 mA.RS-485 Signal Wiring2-wire half-duplex RS-485 MODBUS.Bus TerminationsStandard RS-485 bus terminations required perEIA-485.Zero SuppressionCan be set anywhere within the sensor limits as longas the span is greater than or equal to the minimumspan, the lower range value does not exceed thelower range limit, and the upper range value doesnot exceed the upper range limit.Failure Mode AlarmIf self-diagnostics detect a gross transmitter failure,non-latched status bits are set in the transmitteralarm registers.Hazardous Locations CertificationsWorldwide approvals pending.Over Pressure Limit0 psia to two times the absolute pressure sensorrange with a maximum of 3,626 psia.Static Pressure LimitOperates within specifications between static linepressures of 0.5 psia and the URL of the absolutepressure sensor.Temperature Limits
Process:–40 to 400 °F (–40 to 204 °C).Ambient:–40 to 185 °F (–40 to 85 °C).Storage:–50 to 212 °F (–46 to 100 °C).
Humidity Limits0–100% relative humidity.LCD MeterOptional dual-row, 11-digit, alphanumeric, scrollingliquid crystal display.
LCD Meter Temperature LimitsOperating: –13 to 185 °F (–25 to 85 °C).Storage:–40 to 185 °F (–40 to 85 °C).
Turn-on TimeProcess variables will be within specifications lessthan 4 seconds after power is applied to transmitter.DampingResponse to step input change can be user-selectablefrom 0.1 to 30 seconds for one time constant. This isin addition to sensor response time of 0.2 seconds.
Flow-162
Model 3095FT Flow Transmitter
Mo
del 3095FT
Performance Specifications(Model 3095FH and Model 3095FB)(Zero-based spans, reference conditions, silicone oilfill, 316 SST isolating diaphragms, and digital trimvalues equal to the span end points.)
Differential PressureRange 20–2.5 to 0–250 inH2O (0–0.62 to 0–62.2 kPa)(100:1 rangeability is allowed).Range 30–8.3 to 0–830 inH2O (0–2.48 to 0–206 kPa)(83:1 rangeability is allowed).Reference Accuracy(including Linearity, Hysteresis, Repeatability)±0.075% of span for spans from 1:1 to 10:1 of URL.For spans less than 10:1 rangedown,
Ambient Temperature Effect per 50 °F (28 °C)±(0.025% URL + 0.125% span) spans from 1:1 to 30:1.±(0.035% URL – 0.175% span) spans from 30:1 to100:1.Static Pressure EffectsZero error = ±0.10% of URL per 1,000 psi (6894 kPa).Span error = ±0.20% of reading per 1,000 psi(6894 kPa).Stability±0.1% of URL for 12 months.
Absolute/Gage PressureRange 3 (absolute) C (gage):0–8 to 0–800 psi (0–55.16 to 0–5515.8 kPa)(100:1 rangeability is allowed).Range 4 (absolute) /D (gage):0–36.26 to 0–3,626 psi (0–250 to 0–25000 kPa)(100:1 rangeability is allowed).Reference Accuracy(including Linearity, Hysteresis, Repeatability)±0.075% of span for spans from 1:1 to 6:1 of URL.For spans less than 6:1 rangedown,
Ambient Temperature Effect per 50 °F (28 °C)±(0.05% URL + 0.125% of span) spans from 1:1 to 30:1.±(0.06% URL – 0.175% of span) spans from 30:1 to100:1.Stability±0.1% of URL for 12 months.
Process Temperature (RTD)Specification for process temperature is for thetransmitter portion only. Sensor errors caused bythe RTD are not included. The transmitter is
Accuracy 0.025 0.005URLSpan--------------
+ % of Span=
Accuracy 0.03 0.0075URLSpan--------------
+ % of span=
compatible with any PT100 RTD conforming toIEC 751 Class B, which has a nominal resistanceof 100 ohms at 0 °C and ∝ = 0.00385. Examples ofcompatible RTDs include the Rosemount Series 68and 78 RTD Temperature Sensors.Range
Model 3095FH–40 to 185 °F (–40 to 85 °C).Model 3095FB–40 to 400 °F (–40 to 204 °C).
Accuracy(including Linearity, Hysteresis, Repeatability)±0.5 °F (0.28 °C).Ambient Temperature Effects±0.25 °F (0.14 °C) per 50 °F (28 °C).Stability±0.5 °F (0.28 °C) for 12 months.
Physical Specifications(Model 3095FH and Model 3095FB)Electrical Connections½–14 NPT, CM 20, PG-13.5.Process ConnectionsTransmitter: ¼–18 NPT on 21/8-in. centers.RTD: RTD dependent (see ordering information).Process Wetted Parts
Isolating Diaphragms316L SST or Hastelloy C-276.®
Drain/Vent Valves316 SST or Hastelloy C.®
FlangesPlated carbon steel, 316 SST, or Hastelloy C.Wetted O-ringsGlass-Filled TFE.
Non-Wetted PartsElectronics HousingLow copper aluminum.BoltsPlated carbon steel per ASTM A449, Grade 5;or austenitic 316 SST.Fill FluidSilicone oil.PaintPolyurethane.O-ringsBuna-N.
Weight
Component Weight in lb (kg)
Model 3095FT TransmitterLCD MeterSST Mounting Bracket12 ft (3.66 m) RTD Shielded Cable12 ft (3.66 m) RTD Armored Cable24 ft (7.32 m) RTD Shielded Cable24 ft (7.32 m) RTD Armored Cable
6.0 (2.7)0.5 (0.2)1.0 (0.4)0.5 (0.2)1.1 (0.5)1.0 (0.4)2.2 (1.0)
Rosemount Inc.
Flow-163
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5FT
ORDERING INFORMATION
(1) Not available for Model 3095FH.(2) Meets NACE material recommendations per MR 01–75.(3) Not available for Model 3095FB.
Model Product Description
3095F Flow Transmitter
Code Output
BH
RS-485 MODBUS RTUDigital HART Protocol Signal
Code Differential Pressure Range
23(1)
0–2.5 to 0–250 inH2O (0–0.62 to 0–62.2 kPa)0–10 to 0–830 inH2O (0–2.48 to 0–206 kPa)
Code Absolute/Gage Pressure Ranges
34
C(1)
D(1)
0–8 to 0–800 psia (0–55.16 to 0–5515.8 kPa)0–36.26 to 0–3,626 psia (0–250 to 0–25000 kPa)0–8 to 0–800 psig (0–55.16 to 0–5515.8 kPa)0–36.26 to 0–3,626 psig (0–250 to 0–25000 kPa)
Code Isolator Material Fill Fluid
AB(2)
316L SST SiliconeHastelloy C-276 Silicone
Code Flange Style, Material
ABC
Coplanar, CSCoplanar, SSTCoplanar, Hastelloy C
Code Drain/Vent Material
AC(2)
SSTHastelloy C
Code O-ring
1 Glass-filled TFE
Code Process Temperature Input (RTD ordered separately)
01234
Fixed Process Temperature (no cable)RTD Input with 12 ft (3.66 m) of Shielded Cable (Intended for use with conduit.)RTD Input with 24 ft (7.32 m) of Shielded Cable (Intended for use with conduit.)RTD Input with 12 ft (3.66 m) of Armored, Shielded CableRTD Input with 24 ft (7.32 m) of Armored, Shielded Cable
Code Transmitter Housing Material Conduit Entry Size
ABC
Polyurethane-covered Aluminum ½–14 NPTPolyurethane-covered Aluminum M20 3 1.5 (CM20)Polyurethane-covered Aluminum PG 13.5
Code Terminal Block
AB
StandardWith Integral Transient Protection
Code Meter
01(3)
NoneLCD Meter for Flow Units, Aluminum Housing
Code Bracket
01
NoneCoplanar SST Flange Bracket for 2-in. Pipe or Panel Mount, SST Bolts
Code Bolts
01
CS boltsAustenitic 316 SST Bolts
Code Approvals
0A(3)
B(3)
C(3)
D(3)
NoneFactory Mutual (FM) Explosion-Proof ApprovalFactory Mutual (FM) Non-Incendive and Intrinsic Safety ApprovalCanadian Standards Association (CSA) Explosion-Proof ApprovalCanadian Standards Association (CSA) Non-Incendive and Intrinsic Safety Approval
Code Engineered Measurement Solution (EMS)
A
N
Averaging Method: Flow Dependent Time-weighted Formulaic Averaging (for Model 3095FH only)Compressibility Factor: A.G.A. Report No. 8 /API MPMS Chapter 14.2
MODBUS RTU Process Variable Measurement (for Model 3095FB only)
Code Options
C1DF
Custom Configuration Plated CSFlange Adapters — Adapter Type Determined by Selected Flange Material: SST
Hastelloy C
Typical Model Number 3095F H 2 3 A B A 1 1 A B 1 1 0 A A
{
{
Flow-164
Model 3095FT Flow Transmitter
Mo
del 3095FT
OPTIONSStandard ConfigurationUnless otherwise specified, transmitter is shipped asfollows:Engineering units: DifferentialinH2O (Range 2)
Absolute/Gage psi (all ranges)Output: Model 3095FHDigital HART protocol signal
Model 3095FB MODBUS RTU protocol signalFlange type:Specified model code optionFlange material:Specified model code optionO-ring material:Specified model code optionDrain/vent:Specified model code optionFlow Configuration
Parameters:Factory defaultSoftware tag: (Blank)Software tag (8 characters maximum) is left blankunless specified.Custom Configuration (Option Code C1)If Option Code C1 is ordered, the customer specifiesthe following information for the Model 3095FT inaddition to the standard configuration parameters.
Model 3095FH (see 00806-0100-4015)Gas composition parameters, contract hour,log parameters, LCD display parameters, meterrun configuration parameters, low flow cut-off,passwords, static pressure tap location, staticpressure measurement, damping, descriptor,message, and upper and lower trim points for eachprocess variable.Model 3095FB (see 00806-0100-4738)Message, descriptor, slave address, baud rate,upper and lower trim points for each processvariable, damping for each process variable,units for each process variable, upper and loweroperation limits.
TaggingThree customer tagging options are available:
1. Standard SST tag is wired to the transmitter.Tag character height is 0.125 in. (3.18 mm),85 characters maximum.
2. Tag may be permanently stamped ontransmitter nameplate upon request,65 characters maximum.
3. Tag may be stored in transmitter memory.Software tag (8 characters maximum) is leftblank unless specified.Flow-Cal™ Compatible
The Model 3095FH logged data can be importedinto Flow-Cal, an editing and graphing softwarepackage developed by Coastal Flow MeasurementInc. for the natural gas industry. For furtherinformation concerning this software package,contact Coastal Flow.
ACCESSORIESModel 3095FH User Interface Software PackagesThe User Interface software package is availablewith or without the HART modem and connectingcables. All configurations are packaged separately.
Part No. 03095-5100-0001: Windows User InterfaceSoftware–Single PC License, HART Modem, andCables.Part No. 03095-5110-0001: Windows User InterfaceSoftware–Single PC License.Part No. 03095-5110-0003: Windows User InterfaceSoftware– Site License.Part No. 03095-5105-0001: HART Modem andCables.
Model 3095FB User Interface Software PackagesThe User Interface software package is availablewith or without the converter and connecting cables.All configurations are packaged separately.
Part No. 03095-5130-0001: Windows User InterfaceSoftware–Single PC License, Converter, and Cables.Part No. 03095-5125-0001: Windows User InterfaceSoftware–Single PC License.Part No. 03095-5125-0003: Windows User InterfaceSoftware– Site License.Part No. 03095-5106-0001: Converter and Cables.
Optional Three-valve Manifolds(Packaged Separately)
Part No. 01151-0150-0001: 3-Valve Manifold,Carbon Steel (Anderson, Greenwood & Co.,M4AVIC).Part No. 01151-0150-0002: 3-Valve Manifold,316 SST (Anderson, Greenwood & Co., M4AVIS).
Remote Power Supply PackagesThe Remote Power Supply package (Part No. 03095-5000-1010) provides a continuous power source forone Model 3095FH in locations where power is notavailable.The Backup Power Supply package (Part No. 03095-5000-2000) provides a continuous power source forone Model 3095FH in locations where the dc powersupply may not be reliable due to power line outages.Both configurations are packaged separately.
Part No. 03095-5000-1010: Remote Power SupplyEnclosure, Battery, and Solar Panel.Part No. 03095-5000-2000: Remote Power SupplyEnclosure and Battery.
Rosemount Inc.
Flow-165
Mo
del
309
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REMOTE POWER SUPPLYASSEMBLY(Included with Rosemount Part No. 03095-5000-1010and 03095-5000-2000)
To allow use in remote installations, the Model3095FH can be supplied with an optional solarpower system. This option provides sufficient powerto operate one transmitter in various weatherconditions while remaining as compact and costeffective as possible. Other commercially availablepower systems may be used if they meet the powerrequirements of the Model 3095FH.
General SpecificationsEnclosureFiberglass reinforced polyester, NEMA 3R rating.Enclosure Dimensions11.5 3 8.8 3 5.4 in. (292 3 224 3 137 mm).Enclosure Electrical Openings
Output (to transmitter)½–14 NPT conduit hub.Supply (from solar panel or power source)1/2-inch compression fitting.
Computer HookupBNC Connector. Protected by waterproof BNC capand chain.Enclosure Security3/8-in. inside diameter stainless steel latch suitablefor padlock.Performance
Power Output9.5 mA average.11.35 V minimum (no load).Operating Temperature–40 to 140 °F (–40 to 60 °C).Charging Temperature–4 to 140 °F (–20 to 60 °C).Longest No Power Operating DurationFully charged battery with no solar input willpower transmitter for a minimum of:
35 days at 60 °F (15.6 °C).24 days at –4 °F (–20 °C).
Minimum Equivalent Sun Hours/Day2.5.
Enclosure Weight with Battery20 lb (9.0 kg).
Consult the factory for remote power supplyinformation for Model 3095FB MultivariableMODBUS Transmitters.
Solar Panel SpecificationsType2 Watt, photovoltaic.Dimensions13.75 3 6.75 3 0.50 in. (35 3 173 1 mm).Weight1.3 lb (0.6 kg).
Battery SpecificationsType12 Volt, 12 amp-hour, maintenance-free sealed leadacid.Terminals1/4-in quick disconnect tabs.Dimensions5.95 3 3.86 3 3.84 in. (151 3 98 3 96 mm).Weight8.82 lb (4.0 kg).Expected Service LifeThree years from installation date.
Battery Backup Specifications(Applies to Rosemount Part No. 03095-5000-2000)
User-Supplied Power Supply15–40 V dc, 500 mA minimum.NOTEBattery Backup units are supplied with two 1/2–14 NPT conduit hubs.
FIGURE 14. Remote Power Supply Assembly.
3095
-002
1AB