Rosemount 405 Manuel utilisateur

www.rosemount.com

Reference Manual

00821-0100-4810, Rev AA

March 2004

405 Compact Orifice Series and

1595 Conditioning Orifice Plate

Flow Test Data Book and Flow Handbook

Reference Manual

00821-0100-4810, Rev AA

March 2004

www.rosemount.com

405 and 1595

405 Compact Orifice Series and

1595 Conditioning Orifice Plate

Flow Test Data Book

Emerson Process Management satisfies all obligations coming from legislation to

harmonize product requirements in the European Union

NOTICE

Read this manual before working with the product. For personal and system safety, and for

optimum product performance, make sure to thoroughly understand the contents before

installing, using, or maintaining this product.

Customer Central

1-800-999-9307 (7:00 a.m. to 7:00 P.M. CST)

National Response Center

1-800-654-7768 (24 hours a day)

Equipment service needs

International

1-(952) 906-8888

The products described in this document are NOT designed for nuclear-qualified

applications.

Using non-nuclear qualified products in applications that require nuclear-qualified hardware

or products may cause inaccurate readings.

For information on Rosemount nuclear-qualified products, contact an Emerson Process

Management Sales Representative.

Reference Manual

00821-0100-4810, Rev AA

March 2004 405 and 1595

www.rosemount.com

Table of Contents

SECTION 1

405 Compact Orifice

Series and 1595

Conditioning Orifice

Plate

Product Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Structural Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

In-House Performance Testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Independent Testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Product Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

SECTION 2

Theory of Operation

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Technical Detail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Compact Orifice Plate Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Conditioning Orifice Plate Technology. . . . . . . . . . . . . . . . . . . . . . . . . 2-2

SECTION 3

Test Facilities and Flow

Tests

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Testing Laboratories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Gravimetric Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Flow Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Run to Run Repeatability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Meter Installed 2D Downstream of the Following Fittings . . . . . . . 3-3

Run to Run Repeatability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Single Elbow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24

Double Elbows In Plane. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28

Double Elbows Out of Plane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34

Swirl Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40

8 x 6-in. Reduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-48

Butterfly Valve at 75% Open . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-52

SECTION 4

Flow Calculations

Rosemount 405C and 1595 Conditioning Orifice Plate . . . . . . . . . . . . 4-1

Calculated Values and Variables Designations . . . . . . . . . . . . . . . 4-1

Equations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Rosemount 405P Compact Orifice Plate . . . . . . . . . . . . . . . . . . . . . . . 4-4

Calculated Values and Variables Designations . . . . . . . . . . . . . . . 4-4

Equations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Flow Calculation Tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

Reference Manual

00821-0100-4810, Rev AA

March 2004

405 and 1595

TOC-2

Reference Manual

00821-0100-4810, Rev AA

March 2004

www.rosemount.com

405 and 1595

Section 1 405 Compact Orifice Series and

1595 Conditioning Orifice Plate

Product Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-1

Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-2

Product Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-3

PRODUCT FEATURES The Rosemount 405 Compact Orifice Series (standard and condition plate

options) and 1595 Conditioning Orifice Plate primary flow elements maintain

the traditional strengths of orifice plate technology with improved features /

performance.

The strengths of the 405 include:

• More Economical than a Traditional Orifice Plate Installation

• Machined from a Single Cast Part

• Accurate and Repeatable

• Shorter Straight Run Requirements (405C - 2D Upstream and 2D

Downstream)

• Self Centering Mechanism

• Based on ASME/ISO Corner Tap Design

The strengths of the 1595 include:

• Based on the most common primary element in the world with

established standards for manufacture and installation.

• Easy to use, prove, and troubleshoot

• Accurate and Repeatable

• Shorter Straight Run Requirements (2D Upstream and 2D

Downstream)

• Based on ASME/ISO/AGA standards

The Rosemount 405 and 1595 primary flow elements are sized using

Rosemount's Instrument Toolkit sizing program. This program provides

accurate flow calculations using installation details and fluid properties for the

flowmeter and presents this on a calculation data sheet or specification sheet.

Reference Manual

00821-0100-4810, Rev AA

March 2004

1-2

405 and 1595

TESTING Tests performed on the 405 / 1595 primary flow elements are divided into

three major categories:

• Mechanical and structural testing

• In-house performance testing

• Independent laboratory testing

All categories are on going and continue to be a part of the current

Rosemount test program for the 405 / 1595 primary flow elements.

Structural Testing Rosemount performed integrity testing for:

• Allowable stress limits

• Hydrostatic Pressure

• Thermal Effects

•Vibration

At the following labs:

• Hauser Laboratories, Boulder, CO

• Rosemount Vibration Laboratory, Eden Prairie, MN

In-House Performance

Testing

Hundreds of flow tests were performed in the Rosemount flow laboratory in 2

to 10-in. (50.8 to 254 mm) pipeline, using independently certified magnetic

flowmeters or the laboratory's gravimetric system as primary reference.

Straight run requirements, run to run repeatability (w/ and w/o disassembly /

re-assembly), pipe schedule, and sensitivity to centering are some of the

in-house performance tests that were performed on the Rosemount 405P

Compact Orifice Plate primary element.

Baseline straight run, run to run repeatability (w/ and w/o disassembly /

re-assembly), straight run requirements, pipe schedule, sensitivity to

centering, and gaskets are just a few of the in-house performance tests that

were conducted on the Rosemount 405C and 1595 Conditioning Orifice Plate

primary elements. Extensive testing was also performed to determine

minimum straight run requirements after the following upstream fittings; single

elbow, double elbows in plane, double elbows out of plane, reduction,

expansion, and butterfly valve. Performance was also evaluated with up to 20

degrees of swirl induced.

Every Rosemount 405C and 1595 Conditioning Orifice Plate primary element

is flow calibrated as part of the manufacturing process. A calibration report for

either a 3 point (option code WC) or 10 point (option code WD) calibration can

be provided for shipment with the product.

Independent Testing Rosemount 405 and 1595 primary flow element models were tested at three

independent laboratories:

• Colorado Engineering Experiment Station, Inc. (CEESI)

• Southwest Research Institute (SwRI)

• Foxboro Co. Flow Lab

Certified flow-data sheets were supplied from each of these facilities.

Representative samples of tests conducted at Rosemount and independent

laboratories are in Section 3: Test Facilities and Flow Tests.

Reference Manual

00821-0100-4810, Rev AA

March 2004

1-3

405 and 1595

PRODUCT

SPECIFICATIONS

The above testing has enabled Rosemount to provide product which

conforms to the following specifications:

TABLE 1. Rosemount 405 Compact Orifice Flowmeter

Type Beta Discharge Coefficient Uncertainty

Conditioning 0.4 0.50%

Conditioning 0.65 0.75%

Standard (1/2to 11/2-in. line size)(1)

(1) Discharge Coefficient Uncertainty for 1/2-in. units with Beta = 0.65 is ±2.25% (2.5% of flow).

0.4 1.75%

Standard (1/2to 11/2-in. line size)(1) 0.65 1.75%

Standard (2 to 8-in. line size) 0.4 1.25%

Standard (2 to 8-in. line size) 0.65 1.25%

TABLE 2. Rosemount 1595 Discharge Coefficient Uncertainty

Beta Ratio Accuracy

β= 0.40 0.50%

β= 0.65 0.75%

Reference Manual

00821-0100-4810, Rev AA

March 2004

1-4

405 and 1595

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