Rosemount 8712EM Manuale utente

Quick Install Guide

00825-0100-4727, Rev DC

November 2017

Rosemount® 8700 Magnetic Flowmeter

Sensor

1 Handling and Lifting Safety

CAUTION!

To reduce the risk of personal injury or damage to equipment, follow all

lifting and handling instructions.

•Handle all parts carefully to prevent damage. Whenever possible,

transport the system to the installation site in the original shipping

container.

•PTFE-lined sensors are shipped with end covers that protect it from both

mechanical damage and normal unrestrained distortion. Remove the end

covers just before installation.

•Keep the shipping plugs in the conduit ports until you are ready to

connect and seal them. Appropriate care should be taken to prevent

water ingress.

•The sensor should be supported by the pipeline. Pipe supports are

recommended on both the inlet and outlet sides of the sensor pipeline.

There should be no additional support attached to the sensor.

•Use proper PPE (Personal Protection Equipment) including safety glasses

and steel toed shoes.

•Do not lift the meter by holding the electronics housing or junction box.

•The sensor liner is vulnerable to handling damage. Never place anything

through the sensor for the purpose of lifting or gaining leverage. Liner

damage can render the sensor useless.

•Do not drop the device from any height.

Quick Install Guide November 2017

2Rosemount 8700 Magnetic Flowmeter Sensor

1.1 Lifting lugs

CAUTION!

If provided, use the lifting lugs on each flange to handle the Magnetic

Flowmeter when it is transported and lowered into place at the installation

site. If lifting lugs are not provided, the Magnetic Flowmeter must be

supported with a lifting sling on each side of the housing.

•Standard pressure 3-in. through 36-in. flanged magnetic flowmeters

come with lifting lugs.

•High pressure (above 600#) 1-in. through 24-in. flanged magnetic

flowmeters come with lifting lugs.

•Wafers and sanitary magnetic flowmeters do not come with lifting lugs.

Example lifting without and with lifting lugsFigure 1-1:

A. Without lifting lugs

B. With lifting lugs

November 2017 Quick Install Guide

Quick Install Guide 3

2 Introduction

This document provides basic installation guidelines for the Rosemount 8700

Magnetic Flowmeter sensor.

•For transmitter installation instructions, refer to the appropriate

Rosemount quick installation guide:

Product name Document number

8732EM Transmitter with HART® Protocol 00825-0100-4444

8732EM Transmitter with Modbus® RS-485 Protocol 00825-0400-4444

8712EM Transmitter with HART® Protocol 00825-0100-4445

8712EM Transmitter with Modbus® RS-485 Protocol 00825-0400-4445

8732E Magnetic Flowmeter System 00825-0100-4662

8732E Magnetic Flowmeter System with FOUNDATION™ fieldbus 00825-0100-4663

8732E Magnetic Flowmeter System with PROFIBUS PA digital fieldbus 00825-0100-4665

8712E Magnetic Flowmeter System 00825-0100-4664

8712H Magnetic Flowmeter Systems 00825-0100-4729

•For additional installation information, configuration, maintenance, and

troubleshooting, refer to the appropriate reference manual.

All user documentation can be found at www.emerson.com. For more contact

information see Section 2.2.

2.1 Return policy

Emerson procedures must be followed when returning equipment. These

procedures ensure legal compliance with government transportation

agencies and help provide a safe working environment for Emerson

employees. Failure to follow Emerson procedures will result in your

equipment being refused delivery.

Quick Install Guide November 2017

4Rosemount 8700 Magnetic Flowmeter Sensor

2.2 Emerson Flow customer service

Email:

•Worldwide: [email protected]

•Asia-Pacific: [email protected]

Telephone:

North and South America Europe and Middle East Asia Pacific

United States 800 522 6277 U.K. 0870 240 1978 Australia 800 158 727

Canada +1 303 527

5200

The Nether-

lands

+31 (0) 704 136

666

New Zealand 099 128 804

Mexico +41 (0) 41 7686

111

France 0800 917 901 India 800 440 1468

Argentina +54 11 4837

7000

Germany 0800 182 5347 Pakistan 888 550 2682

Brazil +55 15 3413

8000

Italy 8008 77334 China +86 21 2892

9000

Venezuela +58 26 1731

3446

Central & East-

ern

+41 (0) 41 7686

111

Japan +81 3 5769

6803

Russia/CIS +7 495 981

9811

South Korea +82 2 3438

4600

Egypt 0800 000 0015 Singapore +65 6 777 8211

Oman 800 70101 Thailand 001 800 441

6426

Qatar 431 0044 Malaysia 800 814 008

Kuwait 663 299 01

South Africa 800 991 390

Saudi Arabia 800 844 9564

UAE 800 0444 0684

November 2017 Quick Install Guide

Quick Install Guide 5

3 Location and Position

3.1 Environmental considerations

To ensure maximum transmitter life, avoid extreme temperatures and

excessive vibration. Typical problem areas include the following:

•Tropical/desert installations in direct sunlight

•Outdoor installations in arctic climates

Remote mounted transmitters may be installed in the control room to

protect the electronics from the harsh environment and to provide easy

access for configuration or service.

3.2 Upstream and downstream piping

To ensure specified accuracy over widely varying process conditions, install

the sensor with a minimum of five straight pipe diameters upstream and two

pipe diameters downstream from the electrode plane.

Upstream and downstream straight pipe diametersFigure 3-1:

A. Five pipe diameters (upstream)

B. Two pipe diameters (downstream)

C. Flow direction

Installations with reduced upstream and downstream straight runs are

possible. In reduced straight run installations, the meter may not meet

absolute accuracy specifications. Reported flow rates will still be highly

repeatable.

3.3 Flow direction

The sensor should be mounted so that the arrow points in the direction of

flow.

Quick Install Guide November 2017

6Rosemount 8700 Magnetic Flowmeter Sensor

Flow direction arrowFigure 3-2:

November 2017 Quick Install Guide

Quick Install Guide 7

3.4 Sensor piping location and orientation

The sensor should be installed in a location that ensures it remains full during

operation. Depending on where it is installed, orientation must also be

considered.

•Vertical installation with upward process fluid flow keeps the cross-

sectional area full, regardless of flow rate.

•Horizontal installation should be restricted to low piping sections that are

normally full.

Sensor orientationFigure 3-3:

A. Flow direction

Quick Install Guide November 2017

8Rosemount 8700 Magnetic Flowmeter Sensor

3.5 Electrode orientation

The electrodes in the sensor are properly oriented when the two

measurement electrodes are in the 3 and 9 o’clock positions or within 45

degrees from the horizontal, as shown on the left side of Figure 3-4. Avoid any

mounting orientation that positions the top of the sensor at 90 degrees from

the vertical position as shown on the right of the Electrode Orientation

figure.

Electrode orientationFigure 3-4:

A. Correct orientation

B. Incorrect orientation

The sensor may require a specific orientation to comply with Hazardous Area

T-code rating. Refer to the approrpirate reference manual for any potential

restrictions.

November 2017 Quick Install Guide

Quick Install Guide 9

4 Sensor Installation

4.1 Flanged sensors

Gaskets

The sensor requires a gasket at each process connection. The gasket material

must be compatible with the process fluid and operating conditions. Gaskets

are required on each side of a grounding ring (see Figure 4-1). All other

applications (including sensors with lining protectors or a grounding

electrode) require only one gasket on each process connection.

Note

Metallic or spiral-wound gaskets should not be used as they will damage the

liner face of the sensor. If spiral wound or metallic gaskets are required for

the application, lining protectors must be used.

Gasket placement for flanged sensorsFigure 4-1:

A. Grounding ring and gasket (optional)

B. Customer-supplied gasket

Bolts

Note

Do not bolt one side at a time. Tighten both sides simultaneously. Example:

1. Snug upstream

Quick Install Guide November 2017

10 Rosemount 8700 Magnetic Flowmeter Sensor

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