Rosemount Quick Start Guide: Magnetic Flowmeter System (Transmitter and Flowtube) with FOUNDATION fieldbus - 8742C, 8700 Series | Rosemount Manuals & Guides

Quick Installation Guide

Product DiscontinuedProduct Discontinued

00825-0100-4793, Rev BA
July 2003

Rosemount 8742C/8700 Series

Rosemount Magnetic Flowmeter System
(Transmitter and Flowtube)
with F

OUNDATION

™

fieldbus

Start

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

Step 8: Process Leak Protection (Optional)

Step 9: Power up the Transmitter

FINAL

Step 10: Check Process Connections

Step 11: Confirm Configuration

End

¢00825-0100-4793r¤

www.rosemount.com

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

© 2003 Rosemount Inc. All rights reserved. All marks property of owner.

Rosemount Inc.

8200 Market Boulevard
Chanhassen, MN USA
55317
T (US) [phone]
T (Intnl) [phone]
F [phone]

Rosemount 8742C/8700 Series

Emerson Process
Management

Groeneveldselaan 6-8
3903 AZ Veenendaal
The Netherlands
Tel [phone]
Fax [phone]
Tel [phone] (U.K. only)
Fax [phone] (U.K. only)

Emerson Process
Management Asia Pacific
Private Limited

1 Pandan Crescent
Singapore 128461
T (65) 6777 8211
F (65) 6777 0947/65 6777 0743

IMPORTANT NOTICE

This installation guide provides basic guidelines for the
Rosemount
configuration, diagnostics, maintenance, service, troubleshooting,
explosion-proof, flameproof, or intrinsically safe (I.S.) installations.
Refer to the 8742C reference manual (document number
00809-0100-4793) for more instructions. The manual and this QIG
are also available electronically on www.rosemount.com.

®

8742C. It does not provide instructions for detailed

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 CENELEC approval.

Do not connect a 8742C to a non-Rosemount flowtube that is
located in an explosive atmosphere.

FINAL

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

Rosemount 8742C/8700 Series

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.

STEP 1: PRE-INSTALLATION

Before installing the Rosemount 8742C Magnetic Flowmeter
Transmitter, there are several pre-installation steps that should be
completed to make the installation process easier. They include
identifying the options and configurations that apply to your
application, setting the hardware switches if necessary, and
consideration of physical requirements.

The mounting site for the Rosemount 8742C should provide enough
room for secure mounting, easy access to the conduit ports, and full
opening of the transmitter covers.

To ensure maximum transmitter life, avoid excessive heat and
vibration. Typical problem areas include high-vibration lines with
integrally mounted transmitters, warm-climate installations in direct
sunlight, and outdoor installations in cold climates. To avoid potential
problems, remotely mounted transmitters may be installed in the
control room. This protects the electronics from the harsh environment
and provides easy access for configuration or service.

FINAL

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

Hardware Switches

The Rosemount 8742C electronics board is equipped with two
user-selectable hardware switches. These switches set Simulate
Enable and Transmitter Security. The standard configurations for
these switches when shipped from the factory are as follows:

Simulate Enable: Off

Transmitter Security: Off

The switches are located on the outerboard of the electronics
transmitter stack.

Figure 1. Hardware Switches

Simulate
Enable

Transmitter
Security

Rosemount 8742C/8700 Series

FINAL

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.

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

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, rotating 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.

Rosemount 8742C/8700 Series

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
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

®

-lined flowtubes are shipped with end covers that

FINAL

½- through 4-Inch

Flowtubes

6-Inch and Larger

Flowtubes

8732-0281B02A, C02A

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

Rosemount 8742C/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).

Figure 3. Upstream and Downstream Straight Pipe Diameters

5 Pipe Diameters

Flow

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.

FINAL

2 Pipe Diameters

8732-0281G02A

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

Figure 4. Flowtube Orientation

A

Rosemount 8742C/8700 Series

FLOW

FLOW

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 5. Rosemount 8711 Mounting Position

45° Electrode Plane

FINAL

45° Electrode Plane

8732-0005A01A, 8732-0005A01C

8711-8711-E01A, 8711-8711-F01A

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

Rosemount 8742C/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

FINAL

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

pressure.

Figure 6. Flange Bolt Torquing Sequence

Table 1. Suggested Flange Bolt Torque Values for
Rosemount 8705 and 8707 High-Signal Flowtubes

Size

Code

005
010 1 inch (25 mm) 8 12 - ­015 1
020 2 inch (50 mm) 19 17 14 11
030 3 inch (80 mm) 34 35 23 23
040 4 inch (100 mm) 26 50 17 32
060 6 inch (150mm) 45 50 30 37
080 8 inch (200 mm) 60 82 42 55
100 10 inch (250 mm) 55 80 40 70
120 12 inch (300 mm) 65 125 55 105
140 14 inch (350 mm) 85 110 70 95
160 16 inch (400 mm) 85 160 65 140
180 18 inch (450 mm) 120 170 95 150
200 20 inch (500 mm) 11 0 175 90 150
240 24 inch (600 mm) 165 280 140 250
300 30 inch (750 mm) 195 415 165 375
360 36 inch (900 mm) 280 575 245 525

Line Size

1

/2-inch (15 mm) 8 8 - -

1

/2 inch (40 mm) 13 25 7 18

Rosemount 8742C/8700 Series

8-bolt

Polyurethane/Neoprene/

Teflon/Tefzel/PFA liners

Class 150

(pound-feet)

Class 300

(pound-feet)

Linatex liner

Class 150

(pound-feet)

(pound-feet)

FINAL

Class 300

8742f_01a.eps

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

Rosemount 8742C/8700 Series

Table 2. Flange Bolt Torque and Bolt Load Specifications for 8705

Teflon/Tefzel liner

(Newton-

meter)

10 4400 10 4400

20 10100 20 10100

50 16100 50 16100

60 20100 60 20100

50 16800 50 16800

50 17800 70 19600

90 24700 130 28700

(Newton)

(Newton-

meter)

(Newton)

(Newton-

meter)

Size

Code

Line Size

005 0.5-inch

(15 mm)

010 1 inch

(25 mm)

015 1.5 inch

(40 mm)

020 2 inch

(50 mm)

030 3 inch

(80 mm)

040 4 inch

(100 mm)

060 6 inch

(150mm)

080 8 inch

(200 mm)

100 10 inch

(250 mm)

120 12 inch

(300 mm)

140 14 inch

(350 mm)

160 16 inch

(400 mm)

180 18 inch

(450 mm)

200 20 inch

(500 mm)

240 24 inch

(600 mm)

PN10 PN 16 PN 25 PN 40

(Newton-

meter)

(Newton)

130 35200 90 19700 130 29200 170 34400

100 28000 130 28300 190 38000 250 44800

120 32000 170 38400 190 38600 270 47700

160 43800 220 49500 320 57200 410 68100

220 50600 280 56200 410 68100 610 92900

190 43200 340 68400 330 55100 420 64000

230 51100 380 68900 440 73300 520 73900

290 58600 570 93600 590 90100 850 112000

FINAL

(Newton)

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

Rosemount 8742C/8700 Series

Polyurethane, Linatex, and Neoprene Liners

(Newton-

meter)

(Newton)

(Newton)

20 7040 20 7040

30 10700 30 10700

40 13400 40 13400

30 111 00 30 11100

40 11700 50 13200

60 16400 90 19200

(Newton-

meter)

(Newton)

(Newton-

meter)

(Newton)

Size

Code

Line Size

010 1 inch

(25 mm)

015 1.5 inch

(40 mm)

020 2 inch

(50 mm)

030 3 inch

(80 mm)

040 4 inch

(100 mm)

060 6 inch

(150mm)

080 8 inch

(200 mm)

100 10 inch

(250 mm)

120 12 inch

(300 mm)

140 14 inch

(350 mm)

160 16 inch

(400 mm)

180 18 inch

(450 mm)

200 20 inch

(500 mm)

240 24 inch

(600 mm)

PN 10 PN 16 PN 25 PN 40

(Newton-

meter)

90 23400 60 13100 90 19400 110 22800

70 18600 80 1880 0 130 25400 170 29900

80 21300 110 25500 130 25800 180 319 00

110 29100 150 33000 210 38200 280 45400

150 33700 190 37400 280 45400 410 62000

130 28700 230 45600 220 36800 280 42700

150 34100 260 45900 300 48800 350 49400

200 39200 380 62400 390 60100 560 74400

FINAL

STEP 4: INSTALLATION (WAFER 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.