Rosemount 3051SFA Data sheet

Product Data Sheet

00813-0100-4028, Rev CA March 2008

Rosemount 285 Annubar Primary Element

Rosemount 285 Annubar® Primary Element Series

• Designed for general purpose applications

• Increased plant uptime with the maintenance-free design

• Energy savings gained through minimal permanent pressure loss

• Industry leading integrated DP flowmeters are created when Annubar Averaging Pitot Tube (APT)

primary elements are packaged with

Rosemount pressure transmitters

The 285 Annubar Primary Element Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2

285 Annubar Primary Element Series Selection Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3

Rosemount 285 Annubar Primary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4

Dimensional Drawings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 6

Configuration Data Sheet (CDS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 12

Fluid Data Sheet (FDS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 15

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Contents

Rosemount 285 Annubar Primary Element

Integral mount head allows close coupling to

most Rosemount transmitters which provides

flowmeter capabilities.

The 285 Annubar Primary Element Series

Designed for general purpose applications

The Annubar’s revolutionary shape with sensing holes, promises the best accuracy and repeatability in applications with low to medium pressure and temperature requirements.

Plant uptime is increased with the maintenance-free design

The Annubar sensor is designed to prevent wear and blockage in the pipe. The electronics are the most stable in the industry and allows up to 10 year calibration cycles, providing significant maintenance savings.

Energy savings gained through minimal permanent pressure loss

The non-constricting design of the Annubar sensor creates minimal blockage in the pipe, which reduces permanent pressure loss. Permanent pressure loss can be converted directly into energy savings in the form of compressor cost for gas, electrical cost for pumping liquids, and fuel costs for generating steam.

Industry leading integrated DP flowmeters

By integrating pressure transmitter electronics with the Annubar, Rosemount provides the highest performing insertion DP flowmeter. This fully integrated flowmeter eliminates the need for instrument fittings, tubing, valves, adapters, manifolds, and mounting brackets, thereby reducing welding and installation time.

Product Data Sheet

00813-0100-4028, Rev CA

March 2008

Rosemount DP Flow Solutions

Annubar Flowmeter Series: Rosemount 3051SFA, 3095MFA, 485, and 285

The state-of-the-art, fifth generation Rosemount 485 Annubar combined with the 3051S or 3095MV MultiVariable transmitter creates an accurate, repeatable and dependable insertion-type flowmeter. The Rosemount 285 provides a commercial product offering for your general purpose applications.

Compact Orifice Flowmeter Series: Rosemount 3051SFC, 3095MFC, and 405

Compact Orifice Flowmeters can be installed between existing flanges, up to a Class 600 (PN100) rating. In tight fit applications, a conditioning orifice plate version is available, requiring only two diameters of straight run upstream.

Advanced PlantWeb® Functionality

Rosemount Annubar flowmeters power PlantWeb through a scalable architecture, advanced diagnostics, and MultiVariable capabilities. This reduces operational and maintenance expenditures while improving throughput and utilities management.

Integral Orifice Flowmeter Series: Rosemount 3051SFP, 3095MFP, and 1195

These integral orifice flowmeters eliminate the inaccuracies that become more pronounced in small orifice line installations. The completely assembled, ready to install flowmeters reduce cost and simplify installation.

Orifice Plate Primary Element Systems: Rosemount 1495 and 1595 Orifice Plates, 1496 Flange Unions and 1497 Meter Sections

A comprehensive offering of orifice plates, flange unions and meter sections that is easy to specify and order. The 1595 Conditioning Orifice provides superior performance in tight fit applications.

Product Data Sheet

Rosemount 285 Annubar with Pak-Lok Mounting

• Designed to give the highest performance in applications with low to medium pressure and temperature requirements

• Innovative T-shape design provides accuracy to ±1.00%

• Optional integral manifold head allows direct mounting of DP transmitters

• Ideal fluid type: liquid, gas, and steam

Rosemount 285 Annubar with Duct Mount (No compression fitting)

• Combines the 285 Annubar technology with duct mounting installation

• For applications requiring duct mounting installation

• Ideal fluid types: gas

• Threaded stud for opposite side support

Rosemount 285 Annubar with Duct Mount Compression Fitting

• For application in ducts requiring additional mounting support

• Ideal fluid types: gas

• No opposite side support required

Rosemount 285 Annubar

with Pak-Lok Mounting

Rosemount 285

Annubar with Duct Mount

Rosemount 285

Annubar with Duct Mount

Compression Fitting

00813-0100-4028, Rev CA March 2008

Rosemount 285 Annubar Primary Element

285 Annubar Primary Element Series Selection Guide

Rosemount 285 Annubar Primary Element

dv× p×

-------------------- -=

Rosemount 285 Annubar Primary

SPECIFICATIONS

Performance

Performance Statement Assumptions

Measured pipe I.D.

Discharge Coefficient Factor

Liquid: ±1.0% of flow rate Gas and Steam: ±2.0% of flow rate

Repeatability

±0.1%

Line Sizes

• Sensor Size 1: 2-in. to 8-in. (50 to 200 mm)

• Sensor Size 2: 8-in. and above For larger line sizes, consult factory.

NOTE

Some mounting styles not available in large line sizes.

TABLE 1. Reynolds Number and Probe Width

Sensor Size

1 6500 0.590-in. (14.99 mm) 2 12500 1.060-in. (26.92 mm)

Sizing

Contact an Emerson Process Management representative for assistance. A Configuration Data Sheet is required prior to order for application verification.

Flow Turndown

10:1or better

Minimum Rod Reynolds Number (R

)

Where

d = Probe width (feet) v = Velocity of fluid (ft/sec) p = Density of fluid (lbm/ft

µ = Viscosity of the fluid (lbm/ft-sec)

Probe Width (d) (inches)

)

Functional

Service

•Liquid

•Gas

• Steam (limited)

Temperature Limits

• -40 to 300°F (-40 to 149°C)

• -40 to 850°F (-40 to 454°C) for Duct Mount Version (D1) only

(1)

Pressure Limits

• Pak-Lok: 150# ANSI (275 psig at 100 °F (19 bar at 38 °C))

• Duct Mount (D1 & D2): 10 PSIG (0.6 bar)

Pressure and Temperature Limits

Direct Mount Electronics

• Up to 150# ANSI (275 psig at 100 °F (19 bar at 38 °C))

• Maximum temperature: 500 °F (260 °C)

• Integral temperature measurement is not available.

Remote Mount Electronics

• Up to 150# ANSI (275 psig at 100 °F (19 bar at 38 °C)).

• Integral temperature measurement is not available.

Physical

Annubar Sensor Material

• 316 Stainless Steel

Pak-Lok

See “Dimensional Drawings” on page 6 Pak-Lok Model (option P1)

• Provided with a compression sealing mechanism rated up to 150# ANSI (275 psig at 100 °F (19 bar at 38 °C))

• PTFE Packing (–40 to 300 °F (–40 to 149 °C))

Duct Mount

See “Dimensional Drawings” on page 7. Duct Mount without Compression Fitting Model (option D1)

• Provided with duct mounting rated up to 10 psig at 850°F (0.6 bar at 454°C)

Duct Mount with Compression Fitting

See “Dimensional Drawings” on page 8. Duct Mount with Compression Fitting Model (option D2)

• Provided with duct mount compression fitting rated up to 10 psig at 300°F (0.6 bar at 38°C)

Instrument Connections Temperature Ranges

TABLE 2. Minimum / Maximum Temperature Range

Code Description Temperature

G1 Needle Valves, Carbon Steel -40 to 500°F

G2 Needle Valves, Stainless Steel -40 to 500°F

B1 Ball Valve, Carbon Steel -40 to 300°F

B2 Ball Valve, Stainless Steel -40 to 300°F

Product Data Sheet

00813-0100-4028, Rev CA

March 2008

(1)

(-40 to 260°C)

(-40 to 149°C)

(1) Annubar option selections may effect pressure and tem-

perature limitations.

Product Data Sheet

120

30°

120°

360°

Note: Can also be mounted for Gas Vertical up applications.

FLOW

360°

00813-0100-4028, Rev CA March 2008

Installation Considerations

Rosemount 285 Annubar Primary Element

Straight Run Requirements

In Plane

Out of Plane

(1)

Upstream Dimensions

(Pipe Diameters)

Without

(2)

Vanes

Plane

—

Out of

Plane

—

A’ C C’ B

—8—4—44

Vanes

With

Flowmeter Orientation (Recommended)

Gas (Horizontal)

Downstream

(3)

Liquid and Steam (Horizontal)

Gas (Vertical)

—

(1) Consult the factory for instructions regarding use in

square or rectangular ducts.

(2) “In Plane A” means the bar is in the same plane as the elbow. “Out

(3) Use straightening vane to reduce the required straight run length.

of Plane A” means the bar is perpendicular to the plane of the upstream elbow.

—8—4—44

FLOW

Steam (Vertical)

Drill Hole Size According to Sensor Size

Sensor Size Diameter

2 15/16-in. (34 mm)

/4-in. (19 mm)

Rosemount 285 Annubar Primary Element

REMOTE MOUNT HEAD OPTION

/4-in. NPT

Connection

Dimensional Drawings

Product Data Sheet

00813-0100-4028, Rev CA

March 2008

Pak-Lok Rosemount 285 Annubar Primary

Front View Side View Top View

(1)

(1) The Pak-Lok Annubar model is available up to 150# ANSI (275 psig at 100 °F (19 bar at 38 °C)).

TABLE 3. Rosemount 285 Annubar Primary - Pak-Lok

Sensor Size A (Max) B (Max) C (Max)

1 8.50 (215.9) 5.00 (127.0) 9.00 (228.6) 2 11.00 (279.4) 5.00 (127.0) 9.00 (228.6)

Dimensions are in inches (millimeters)

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