Rosemount 8732 Series Bedienungsanleitung

www.rosemount.com

¢00825-0100-4725.¤

Quick Installation Guide

00825-0100-4725, Rev BA

July 2003 Rosemount 8732/8700 Series

Rosemount Magnetic Flowmeter

System (Transmitter and Flowtube)

Step 1: Pre-Installation

Step 2: Handling

Step 3: Mounting

Step 4: Installation (Flanged Flowtubes)

Step 4: Installation (Wafer Flowtubes)

Step 4: Installation (Sanitary Flowtubes)

Step 5: Grounding

Step 6: Wiring

Step 7: Basic Configuration

Start

Step 9: Power up the Transmitter

Step 10: Check Process Connections

Step 11: Confirm Configuration

End

Step 8: Process Leak Protection (Optional)

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Quick Installation Guide

00825-0100-4725, Rev BA

July 2003 Rosemount 8732/8700 Series

IMPORTANT NOTICE

This installation guide provides basic guidelines for the

Rosemount®8732. It does not provide instructions for detailed

configuration, diagnostics, maintenance, service, troubleshooting,

explosion-proof, flame-proof, or intrinsically safe (I.S.) installations.

Refer to the Rosemount 8732 reference manual (document number

00809-0100-4725) for more instructions. The manual and this QIG

are also available electronically on www.rosemount.com.

WARNING

Failure to follow these installation guidelines could result in

death or serious injury:

Installation and servicing instructions are for use by qualified

personnel only. Do not perform any servicing other than that

contained in the operating instructions, unless qualified. Verify that

the operating environment of the flowtube and transmitter is

consistent with the appropriate FM, CSA, or ATEX approval.

Do not connect a Rosemount 8732 to a non-Rosemount flowtube

that is located in an explosive atmosphere.

Rosemount Inc.

12001 Technology Drive

Eden Prairie, MN USA

55344

T (US) (800) 999-9307

T (Intnl) (952) 906-8888

F (952) 949-7001

Fisher-Rosemount

Flow

Groeneveldselaan 6-8

3903 AZ Veenendaal

The Netherlands

Tel 31 (0) 318 549 549

Fax 31 (0) 318 549 559

Emerson Process

Management Asia Pacific

Private Limited

1 Pandan Crescent

Singapore 128461

T (65) 6777 8211

F (65) 6777 0947/65 6777 0743

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Quick Installation Guide

00825-0100-4725, Rev BA

July 2003 Rosemount 8732/8700 Series

STEP 1: PRE-INSTALLATION

Before installing the Rosemount 8732 Magnetic Flowmeter

Transmitter, there are several pre-installation steps that should be

completed to make the installation process easier:

• Identify the options and configurations that apply to

your application

• Set the hardware switches if necessary

• Consider mechanical, electrical, and environmental requirements

Mechanical Considerations

The mounting site for the Rosemount 8732 transmitter should provide

enough room for secure mounting, easy access to conduit ports, full

opening of the transmitter covers, and easy readability of the LOI

screen (see Figure 1). The transmitter should be mounted in an

upright position.

If the Rosemount 8732 is mounted separately from the flowtube, it

is not subject to limitations that might apply to the flowtube.

WARNING

The flowtube liner is vulnerable to handling damage. Never place

anything through the flowtube for the purpose of lifting or gaining

leverage. Liner damage can render the flowtube useless.

To avoid possible damage to the flowtube liner ends, do not use

metallic or spiral-wound gaskets. If frequent removal is anticipated,

take precautions to protect the liner ends. Short spool pieces

attached to the flowtube ends are often used for protection.

Correct flange bolt tightening is crucial for proper flowtube operation

and life. All bolts must be tightened in the proper sequence to the

specified torque limits. Failure to observe these instructions could

result in severe damage to the flowtube lining and possible flowtube

replacement.

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Quick Installation Guide

00825-0100-4725, Rev BA

July 2003 Rosemount 8732/8700 Series

Figure 1. Rosemount 8732 Dimensional Drawing

5.82

(148)

4.97

(126)

6.48 (165)

3.07

(78)

8.81

(224)

4.97 (126)

3/4”-14 NPT Electrical

Conduit Connections

(2 places)

3/4”-14 NPT Flowtube

Conduit Connections

(2 places)

7.49 (190)

1.88 (47)

3.00

(76)

LOI Cover

8742-8742_06a, 8742_06b, 1002G01A

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Quick Installation Guide

00825-0100-4725, Rev BA

July 2003 Rosemount 8732/8700 Series

Environmental Considerations

To ensure maximum transmitter life, avoid excessive heat and

vibration. Typical problem areas:

• high-vibration lines with integrally mounted transmitters

• warm-climate installations in direct sunlight

• outdoor installations in cold climates.

Remote-mounted transmitters may be installed in the control room to

protect the electronics from the harsh environment and provides easy

access for configuration or service.

Both remotely and integrally mounted Rosemount 8732 transmitters

require external power and there must be access to a suitable power

source.

Installation Procedures

Rosemount 8732 installation includes both detailed mechanical and

electrical installation procedures.

Mount the Transmitter

At a remote site the transmitter may be mounted on a pipe up to two

inches in diameter or against a flat surface.

Pipe Mounting

To mount the transmitter on a pipe:

1. Attach the mounting plate to the pipe using the mounting hardware.

2. Attach the Rosemount 8732 to the mounting plate using the

mounting screws.

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Quick Installation Guide

00825-0100-4725, Rev BA

July 2003 Rosemount 8732/8700 Series

Identify Options and Configurations

The standard application of the 8732 includes a 4–20 mA output and

control of the flowtube coils. Other applications may require one or

more of the following configurations or options:

• Multidrop Communications

• Auxiliary Output

• Pulse Output

Additional options may apply. Be sure to identify those options and

configurations that apply to your situation, and keep a list of them

nearby for consideration during the installation and configuration

procedures.

Hardware Jumpers/Switches

The 8732 electronics board is equipped with

three user-selectable hardware switches. These switches set the

Failure Alarm Mode, Internal/External Analog Power, and Transmitter

Security. The standard configuration for these switches when shipped

from the factory are as follows:

Changing Hardware Switch Settings

In most cases, it is not necessary to change the setting of the

hardware switches. If you need to change the switch settings,

complete the steps outlined in the manual.

Failure Alarm Mode: HIGH

Internal/External Analog Power: INTERNAL

Transmitter Security: OFF

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Quick Installation Guide

00825-0100-4725, Rev BA

July 2003 Rosemount 8732/8700 Series

Electrical Considerations

Before making any electrical connections to the Rosemount 8732,

consider the following standards and be sure to have the proper power

supply, conduit, and other accessories.

Rotate Transmitter Housing

The electronics housing can be rotated on the flowtube in 90°

increments by loosening the four mounting bolts on the bottom of the

housing, and reinstalling the bolts. When the housing is returned to its

original position, be sure the surface is clean and there is no gap

between the housing and the flowtube.

STEP 2: HANDLING

Handle all parts carefully to prevent damage. Whenever possible,

transport the system to the installation site in the original shipping

containers. Teflon®-lined flowtubes are shipped with end covers that

protect it from both mechanical damage and normal unrestrained

distortion. Remove the end covers just before installation.

Figure 2. Rosemount 8705 Flowtube Support for Handling

½- through 4-Inch

Flowtubes 6-Inch and Larger

Flowtubes

8732-0281B02A, C02A

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Quick Installation Guide

00825-0100-4725, Rev BA

July 2003 Rosemount 8732/8700 Series

STEP 3: MOUNTING

Upstream/Downstream Piping

To ensure specification accuracy over widely varying process

conditions, install the flowtube a minimum of five straight pipe

diameters upstream and two pipe diameters downstream from the

electrode plane (see Figure 3).

Flow Direction

The flowtube should be mounted so the FORWARD end of the flow

arrow, shown on the flowtube identification tag, points in the direction

of flow through the tube.

Flowtube Orientation

The flowtube should be installed in a position that ensures the

flowtube remains full during operation. Vertical installation allows

upward process fluid flow and keeps the cross-sectional area full,

regardless of flow rate. Horizontal installation should be restricted to

low piping sections that are normally full. In these cases, orient the

electrode plane to within 45 degrees of horizontal.

Figure 3. Upstream and Downstream Straight Pipe Diameters

5 Pipe Diameters 2 Pipe Diameters

Flow

8732-0281G02A

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Quick Installation Guide

00825-0100-4725, Rev BA

July 2003 Rosemount 8732/8700 Series

The electrodes in the Rosemount 8705 flowtube are properly

orientated when the two measurement electrodes are in the 3 and 9

o’clock positions, as shown on the right of Figure 4.

The electrodes in the Rosemount 8711 are properly orientated when

the top of the flowtube is either vertical or horizontal, as shown in

Figure 5. Avoid any mounting orientation that positions the top of the

flowtube at 45° from the vertical or horizontal position.

Figure 4. Flowtube Orientation

Figure 5. Rosemount 8711 Mounting Position

FLOW

8732-0005A01A, 8732-0005A01C

FLOW

45° Electrode Plane

8711-8711-E01A, 8711-8711-F01A

45° Electrode Plane

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Quick Installation Guide

00825-0100-4725, Rev BA

July 2003 Rosemount 8732/8700 Series

STEP 4: INSTALLATION (FLANGED FLOWTUBE)

Gaskets

The flowtube requires a gasket at each of its connections to adjacent

devices or piping. The gasket material selected must be compatible with the

process fluid and operating conditions. Metallic or spiral-wound gaskets

can damage the liner. Gaskets are required on each side of the

grounding ring. All other applications (including flowtubes with lining

protectors or a grounding electrode) require only one gasket on each

end connection.

Flange Bolts

Suggested torque values by flowtube line size and liner type are listed

in Table 1 for ASME B16.5 (ANSI) and Table 2 for DIN flanges.

Consult the factory if the flange rating of the flowtube is not listed.

Tighten flange bolts on the upstream side of the flowtube in the

incremental sequence shown in Figure 6 to 20% of the suggested

torque values. Repeat the process on the downstream side of the

flowtube. For flowtubes with more or less flange bolts, tighten the bolts

in a similar crosswise sequence. Repeat this entire tightening

sequence at 40%, 60%, 80%, and 100% of the suggested torque

values or until the leak between the process and flowtube flanges

stop.

If leakage has not stopped at the suggested torque values, the bolts

can be tightened in additional 10% increments until the joint stops

leaking, or until the measured torque value reaches the maximum

torque value of the bolts. Practical consideration for the integrity of the

liner often leads the user to distinct torque values to stop leakage due

to the unique combinations of flanges, bolts, gaskets, and flowtube

liner material.

Check for leaks at the flanges after tightening the bolts. Failure to use

the correct tightening methods can result in severe damage.

Flowtubes require a second tightening 24 hours after the initial

installation. Over time, flowtube liner materials may deform under

4725_revBA_qig.fm Page 10 Thursday, July 3, 2003 12:47 PM

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