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

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

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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)

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00825-0100-4793, Rev BA
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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.

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

Alignment and Bolting

1. On 11/2 - through 8-inch (40 through 200 mm) line sizes, place
centering rings over each end of the flowtube. The smaller line
sizes, 0.15- through 1-inch (4 through 25 mm), do not require
centering rings. On the 4- and 6-inch PN 10–16, insert the flowtube
with rings first and then insert the studs. The slots on this ring
scenario are located on the inside of the ring.

2. Insert studs for the bottom side of the flowtube between the pipe
flanges. Stud specifications are listed in Table 3. Using carbon

steel bolts on smaller line sizes, 0.15- through 1-inch
(4 through 25 mm), rather than the required stainless steel
bolts, will degrade performance.

Table 3. Stud Specifications

Nominal Flowtube Size Stud Specifications

0.15 – 1 inch (4 – 25 mm) 316 SST ASTM A193, Grade B8M

11/2 – 8 inch (40 – 200 mm) CS, ASTM A193, Grade B7, threaded mounting studs

3. Place the flowtube between the flanges. Make sure that the
centering rings are properly placed in the studs. The studs should
be aligned with the markings on the rings that correspond to the
flange you are using.

4. Insert the remaining studs, washers, and nuts.

5. Tighten to the torque specifications shown in Table 1. Do not
overtighten the bolts or the liner may be damaged.

Rosemount 8742C/8700 Series

Class 1 threaded mounted studs

FINAL

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

Figure 7. Gasket Placement with Centering Rings

Installation, Studs Nuts

and Washers

Rosemount 8742C/8700 Series

Customer-supplied

Gasket

Centering Rings

FLOW

8732-0002A1A

Flange Bolts

Tighten flange bolts in crosswise sequence. Always check for leaks at
the flanges after tightening the flange bolts. All flowtubes require a
second torquing 24 hours after initial flange bolt tightening.

Table 4.

Size Code Line Size Pound-feet Newton-meter

15F 0.15 inch (4 mm) 5 11
30F 0.30 inch (8 mm) 5 11
005
010 1 inch (25 mm) 10 9
015 1
020 2 inch (50 mm) 25 21
030 3 inch (80 mm) 40 20
040 4 inch (100 mm) 30 45
060 6 inch (150 mm) 50 77
080 8 inch (200 mm) 70 61

FINAL

1

/2-inch (15 mm) 5 11

1

/2 inch (40 mm) 15 14

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

Rosemount 8742C/8700 Series

STEP 4: INSTALLATION (SANITARY 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. Gaskets are supplied
between the IDF fitting and the process connection fitting, such as a
Tri-Clamp fitting, on all 8721 Sanitary flowtubes except when the
process connection fittings are not supplied and the only connection
type is an IDF fitting.

Alignment and Bolting

Standard plant practices should be followed when installing a
magmeter with sanitary fittings. Unique torque values and bolting
techniques are not required.

Figure 8. Rosemount 8721 Sanitary Installation

User supplied clamp

Note:

User supplied gasket

FINAL

If ordered manufacturer
supplied clamp and gasket

8721_a_06.eps

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

Rosemount 8742C/8700 Series

STEP 5: GROUNDING

Use Table 5 to determine which grounding option to follow for proper
installation. The flowtube case should always be earth grounded in
accordance with national and local electrical codes. Failure to do so
may impair the protection provided by the equipment. The Internal
Ground Connection (Protective Ground Connection) located in side
the junction box is the Internal Ground Connection screw. This screw
is identified by the ground symbol.

Table 5. Grounding Installation

Grounding Options

No
Grounding

Type of Pipe

Conductive
Unlined Pipe

Conductive
Lined Pipe

Non-Conduc
tive Pipe

Figure 9. No Grounding Options or Grounding Electrode in Lined Pipe

Options

See Figure 9 Not Required Not Required See Figure 10

Insufficient
Grounding

Insufficient
Grounding

Grounding
Rings

See Figure 10 See Figure 9 See Figure 10

See Figure 11 See Figure 12 See Figure 11

Grounding
Electrodes

Lining
Protectors

FINAL

Earth

Ground

8705-0040C

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

Figure 10. Grounding with Grounding Rings or Lining Protectors

Figure 11. Grounding with Grounding Rings or Lining Protectors

Rosemount 8742C/8700 Series

Earth

Ground

Grounding Rings or Lining

Protectors

8705-038C

FINAL

Earth

Ground

Grounding Rings

8711-0360a01b

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

Figure 12. Grounding with Grounding Electrodes

Rosemount 8742C/8700 Series

Earth

Ground

8711-0360a01a

STEP 6: WIRING

Conduit Ports and Connections

Both the flowtube and transmitter junction boxes have ports for ¾-inch
NPT conduit connections. These connections should be made in
accordance with local or plant electrical codes. Unused ports should
be sealed with metal plugs. Proper electrical installation is necessary
to prevent errors due to electrical noise and interference. Separate
conduits are not necessary for the two cables, but a dedicated conduit
line between each transmitter and flowtube is required. Shielded cable
must be used for best results in electrically noisy environments.

Conduit Cables

Run the appropriate size cable through the conduit connections in your
magnetic flowmeter system. Run the power cable from the power
source to the transmitter. Run the coil drive and electrode cables
between the flowmeter and transmitter. Prepare the ends of the coil
drive and electrode cables as shown in Figure 13. Limit the unshielded
wire length to 1-inch on both the electrode and coil drive cables.
Excessive lead length or failure to connect cable shields can create
electrical noise resulting in unstable meter readings.

FINAL

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

Figure 13. Cable Preparation Detail

Cable Shield

Step 6.1 Transmitter Coil Input

This wiring section covers supplying power to the flowtube coils
through the transmitter. The transmitter coil input power sends a
pulsed DC frequency to the flowtube.

Wire the transmitter according to local electrical requirements. Ground
the transmitter cage via the threaded conduit connection. For ac power
applications, connect ac Neutral to terminal N and connect ac Line to
terminal L1. For dc power applications, properly connect the positive
and negative terminals. Units powered by 15-50 V dc power supply
may draw up to 1 amp of current. In addition, follow the supply wire
and disconnect requirements below:

Rosemount 8742C/8700 Series

1.00
(26)

NOTE
Dimensions are in
inches (millimeters).

FINAL

8705/0041a.eps

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

Figure 14. Power Supply Current

1.0

0.75

0.5

0.25

0

Supply Current (Amps)

I = 10/V
I = Supply current requirement (Amps)
V = Power supply voltage (Volts)

Supply Wire Requirements

Use 12 to 18 AWG wire rated for the proper temperature application.
For connections in ambient temperatures above 140 °F (60 °C), use a
wire rated for 176 °F (80 °C). For ambients greater than 176 °F (80
°C), use a wire rated for 230 °F (110 °C).

Disconnects

Connect the device through an external disconnect or circuit breaker.
Clearly label the disconnect or circuit breaker and locate it near
the transmitter and per local electrical control.

Rosemount 8742C/8700 Series

15

20

30

Power Supply (Volts)

40

FINAL

50

Installation Category

The installation category for the 8742C is (Overvoltage) Category II.

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

Rosemount 8742C/8700 Series

Overcurrent Protection

The 8742C Flowmeter Transmitter requires overcurrent protection of
the supply lines. Maximum ratings of overcurrent devices are as
follows:

Power

System

110 V ac 250 V; 1 Amp, Quick Acting Bussman AGCI or Equivalent
220 V ac 250 V; 0.5 Amp, Quick Acting Bussman AGCI or Equivalent

Fuse Rating Manufacturer

Step 6.2 Transmitter Communication Input

The FOUNDATION fieldbus communication requires a minimum of
9 V dc and a maximum of 32 V dc at the transmitter communication
terminals. Do not exceed 32 V dc at the transmitter
communication terminals. Do not apply ac line voltage to the
transmitter communication terminals. Improper supply voltage can
damage the transmitter.

Power Conditioning

Each fieldbus power supply requires a power conditioner to decouple
the power supply output from the fieldbus wiring segment.

Field Wiring

Power independent of the coil power supply must be supplied for

OUNDATION fieldbus communications. Use shielded, twisted pair for

F
best results.In order to get maximum performance in new applications,
twisted pair cable specifically designed for fieldbus communications
should be used. The number of devices on a fieldbus segment is
limited by the power supply voltage, the resistance of the cable, and
the amount of current drawn by each device.

Table 6. Ideal Cable Specifications for Fieldbus Wiring

Characteristic Ideal Specification

Impedance 100 Ohms ± 20% at 31.25 kHz
Wire Size 18 AWG (0,8 mm2)
Shield Coverage 90%
Attenuation 3 db/km
Capacitive Unbalance 2 nF/km

FINAL

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

Rosemount 8742C/8700 Series

Transmitter Wiring Connection

The communication terminals are polarity insensitive: the polarity of
the dc power leads does not matter when connecting to the power
terminals. When wiring to screw terminals, crimped lugs are
recommended. Tighten the terminals to ensure adequate contact. Both
transmitter covers must be fully engaged to meet explosion proof
requirements. Do not remove the transmitter covers in an explosive
atmosphere when the transmitter is powered.

Figure 15. Power Connections

(The power supply, filter,
first terminator, and
configuration tool are
typically located in the
control room.)

Integrated

Conditioner

and Filter

Power

6234 ft (1900 m) max

(depending upon cable characteristics)

Terminators

(Spur)

Fieldbus

Segment

FINAL

(Spur)

(Trunk)

* Intrinsically safe installations may
allow fewer devices per I.S. barrier.

Devices 1 through 11*

Step 6.3 Transmitter to Flowtube Wiring

A single dedicated conduit run for the coil drive and electrode cables is
needed between a flowtube and a remote transmitter. Bundled cables
in a single conduit are likely to create interference and noise problems
in your system. Use one set of cables per conduit run.

8742-8742_01A

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

Rosemount 8742C/8700 Series

Figure 16. Conduit Preparation

Power

Outputs

Table 7. Cable Requirements

Description Length Part Number

Signal Cable (20 AWG) Belden
8762, Alpha 2411 equivalent

Coil Drive Cable (14 AWG) Belden
8720, Alpha 2442 equivalent

Combination Signal and Coil Drive
Cable (18 AWG)

(1) Combination signal and coil drive cable is not recommended for

Wrong Right

Coil Drive
and
Electrode

Power

Outputs

high-signal magmeter system. For remote mount installations, combination
signal and coil drive cable should be limited to less than 100 ft. (30 m).

Cables

(1)

FINAL

Power

Outputs

Power

Outputs

ft

m

ft

m

ft

m

Coil Drive
and
Electrode
Cables

08712-0061-0001
08712-0061-0003

08712-0060-0001
08712-0060-0013

08712-0752-0001
08712-0752-0003

Remote transmitter installations require equal lengths of signal and
coil drive cables. Integrally mounted transmitters are factory wired and
do not require interconnecting cables.

Lengths from 5 to 1,000 feet (1.5 to 300 meters) may be specified, and
will be shipped with the flowtube.

8705/0000a01a, 0000a01b.eps

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

Rosemount 8742C/8700 Series

Flowtube to Remote Mount Transmitter Connections

Figure 17. Remote Mount Wiring Diagram

Do not connect ac
power to the flowtube
or to terminals 1 and 2
of the transmitter, or
replacement of the
electronics board will
be necessary.

Flowtube to Integral Mount Transmitter Connections

Figure 18. Integral Mount Wiring Diagram

Electronics
Board

FINAL

Do not connect
ac power to the
flowtube or to
terminals 1 and 2
of the transmitter,
or replacement of
the electronics
board will be
necessary.

8742b_07a,8742/8742_07.eps

8732-8732B01A,8742/8742_08

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

Rosemount 8742C/8700 Series

Step 7: Basic Configuration

Quick Start-Up

Once the magnetic flowmeter system is installed and communication
is established, configuration of the transmitter must be completed. The
standard transmitter configuration, without Option Code C1, Custom
Configuration, is shipped with the following parameters:

Engineering Units: ft/s

Tube Size: 3-in.

Flowtube Calibration Number: 100000501000000

Assigning Device Tag and Node Address

The 8742C Magnetic Flowmeter Transmitter is shipped with a blank
tag and a temporary address to allow a host to automatically assign an
address and a tag. If the tag or address need to be changed, use the
features of the configuration tool. The tools do the following:

• Change the tag to a new value.

• Change the address to a new address.
When the device is at a temporary address, only the tag and address
can be changed or written to. The resource, transducer, and function
blocks are all disabled.

FINAL

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

Flow-Specific Block Configuration

AI Block

The Analog Input (AI) function block provides the primary interface of
the measurement to the control and/or monitoring systems. To
properly configure the device, three parameters must be set in order to
correctly interface between the AI block and transducer block.

1. The CHANNEL parameter defines which transducer block

measurement is used by the AI block. In the 8742C Magnetic
Flowmeter Transmitter, only one channel is available:
AI1.CHANNEL = 1 (Flow).

2. The second parameter is the XD_SCALE.UNITS_INDX. The

default configuration is feet per second (ft/s).

3. Finally, since the flow measurement from the transducer block is in

the correct units, L_TYPE is configured as Direct. L_TYPE can be
either Direct or Indirect.

General Block Configuration

In general, only the transducer block and AI block have configurations
for flow-specific parameters. All other function blocks are configured
by linking the AI block to other blocks to be used for control and/or
monitoring applications.

NOTE

Refer to the F
00809-0100-4783, for more details on configuring and troubleshooting
the AI block.

OUNDATION fieldbus Block product manual, document

Rosemount 8742C/8700 Series

FINAL

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

Rosemount 8742C/8700 Series

Product Certifications

Approved Manufacturing Locations

Rosemount Inc. — Chanhassen, Minnesota, USA

Fisher-Rosemount Technologias de Flujo, S.A. de C.V. —
Chihuahua, Chihuahua, Mexico

European Directive Information

The EC declaration of conformity for all applicable European directives
for this product can be found on our website at www.rosemount.com.
A hard copy may be obtained by contacting our local sales office.

ATEX Directive

Rosemount Inc. complies with the ATEX Directive.

Flame-Proof enclosure Ex d protection type in
accordance with EN50 018

• Transmitters with Flame-Proof enclosure type protection shall only

be opened when power is removed.

• Closing of entries in the device must be carried out using the

appropriate EEx d metal cable gland or metal blanking plug.

• Do not exceed the energy level, which is stated on the approval

label.

Type n protection type in accordance with EN50 021

• Closing of entries in the device must be carried out using the

appropriate EExe or EExn metal cable gland and metal blanking
plug or any appropriate ATEX approved cable gland and blanking
plug with IP66 rating certified by an EU approved certification
body.

FINAL

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

European Pressure Equipment Directive (PED) (97/23/EC)

Rosemount 8705 Magnetic Flowmeter flowtubes in line size and

flange combinations:

Line Size: 1 1/2 inch / Flange Type ANSI 600, ANSI 900
Line Size: 2 inch / Flange Type ANSI 300, ANSI 600, ANSI 900
Line Size: 3 inch / Flange Type PN40, ANSI 300, ANSI 600, ANSI 900
Line Size: 4 inch / Flange Type PN 40, ANSI 300, ANSI 600, ANSI 900
Line Size: 6 inch / all Flange Types
Line Size: 8 inch / PN16, PN25, PN40, ANSI 150,

ANSI300, ANSI 600, ANSI900

Line Size: 10, 12, 14, 16, 18, 20, 24, 30, 36 inch / all Flange Types

QS Certificate of Assessment - EC No. PED-H-20
Module H Conformity Assessment

Rosemount 8711 Magnetic Flowmeter Flowtubes

Line Sizes: 1.5, 2, 3, 4, 6, and 8 inch

QS Certificate of Assessment - EC No. PED-H-20
Module H Conformity Assessment

All other Rosemount 8705/8711 Flowtubes —

Sound Engineering Practice

Flowtubes that are SEP or Category I with Explosion-Proof protection
are outside the scope of PED and cannot be marked for compliance
with PED.

Mandatory CE-marking for flowtubes in accordance with Article 15 of
the PED can be found on the flowtube body (CE 0434).

Flowtube categories I – IV, use module H for conformity assessment
procedures.

Rosemount 8742C/8700 Series

FINAL

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

Electro Magnetic Compatibility (EMC) (89/336/EEC)

All Models EN 50081-1: 1992, EN 50082-2: 1995, EN 61326-1: 1997

Installed signal wiring should not be run together and should not be in
the same cable tray as AC power wiring.

Device must be properly grounded or earthed according to local
electric codes.

To improve protection against signal interference, shielded cable is
recommended, see “Connect Wiring and Power Up” on page 16 for
more information.

Low Voltage Directive (93/68/EEC)

All Models 8742

EN 61010-1: 1995

Other important guidelines

Only use new, original parts.

To prevent the process medium escaping, do not unscrew or remove
process flange bolts, adapter bolts or bleed screws during operation.

Maintenance shall only be done by qualified personnel.

Hazardous Location Certifications

Equivalent Hazardous Location Certifications for flowtube and
transmitter must match in integrally-mounted magnetic flowmeter
systems. Remote-mounted systems do not require matched
hazardous location certification option codes.

Rosemount 8742C/8700 Series

FINAL

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

Rosemount 8742C/8700 Series

Transmitter Approval Information

TABLE 8. Transmitter Option Codes

Approval Codes Fieldbus Output I.S. fieldbus Output

N0 •
N5 •
E5 •
ED •
K0 • •
K5 • •

(1)

KD

(1) Refer to Table 10 on page 36 for relation between ambient temperature,

process temperature, and temperature class.

North American Certifications

Factory Mutual (FM)

N0 Division 2 Approval

Class I, Division 2, Groups A, B, C, D
Temp Code – T4 at 60°C

Dust-Ignition proof Class II/III, Division 1, Groups E, F, G
Temp Code – T6 at 60°C

Enclosure Type 4X

Rosemount 8742 Transmitter

• •

FINAL

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

N5 Division 2 Approval for flowtubes with IS electrodes only

Class I, Division 2, Groups A, B, C, D
Temp Codes – T4 at 60°C
Dust-Ignition proof Class II/III, Division 1, Groups E, F, G
Temp Code – T6 at 60°C
Enclosure Type 4X

E5 Explosion-Proof Approval

Explosion-Proof for Class I, Division 1, Groups C, D
Temp Code – T6 at 60°C

Dust-Ignition proof Class II/III, Division 1, Groups E, F, G
Temp Code – T6 at 60°C

Class I, Division 2, Groups A, B, C, D
Temp Codes – T4 at 60°C,

Enclosure Type 4X

K0 Division 2 Approval with Intrinsically Safe Output

Reference Rosemount Control Drawing 08742-1051
Class I, Division 2, Groups A, B, C, D with IS output for Class I,
Division 1, Groups A, B, C, D. Temp Code – T4 at 60°C
Dust-Ignition proof Class II/III, Division 1, Groups E, F, G
Temp Code – T6 at 60°C
Enclosure Type 4X

K5 Explosion-Proof Approval with Intrinsically Safe Output

Reference Rosemount Control Drawing 08742-1051
Explosion-Proof for Class I, Division 1, Groups C, D with IS output

for Class I, Division 1, Groups A, B, C, D. Temp Code – T6 at 60°C
Dust-Ignition proof Class II/III, Division 1, Groups E, F, G

Temp Code – T6 at 60°C
Class I, Division 2, Groups A, B, C, D

Temp Codes – T4 60°C
Enclosure Type 4X

Rosemount 8742C/8700 Series

FINAL

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

Canadian Standards Association (CSA)

N0 Suitable for Class I, Division 2, Groups A, B, C, D

Temp Code T4 at 60°C
Dust-Ignition proof Class II/III, Division 1, Groups E, F, G
Enclosure Type 4X

K0 Reference Rosemount Control Drawing 08742-1052

Suitable for Class I, Division 2, Groups A, B, C, D with IS output for
Class I, Division 1, Groups A, B, C, D. Temp Code – T4 at 40°C

Dust-Ignition proof Class II/III, Division 1, Groups E, F, G
Enclosure Type 4X

European Certifications

ED CENELEC Flame-Proof

Certificate No: KEMA03ATEX2159X II 2G
EEx de IIB T6 (Ta = -20°C to +65°C)

= 250 V AC or 50 V DC

V

max

0575

KD CENELEC Flame-Proof with

Intrinsically Safe Output

Certificate No: KEMA03ATEX2159X II 2G
EEx de [ia] IIB T6 (Ta = -20°C to +65°C)
V

= 250 V AC or 50 V DC

max

0575

Rosemount 8742C/8700 Series

FINAL

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

Rosemount 8742C/8700 Series

SPECIAL CONDITIONS FOR SAFE USE (X):

The relation between ambient temperature, process temperature and
temperature class is to be taken from the table under (15 - description)
above. (See Table 10).

INSTALLATION INSTRUCTIONS:

The cable and conduit entry devices and the closing elements shall be
of a certified increased safety type, suitable for the conditions of use
and correctly installed.

At ambient temperatures above 50°C, the flow meter shall be used
with heat resistant cables with a temperature rating of at least 90°C.

Flowtube Approval Information

Table 9. Flowtube Option Codes

Rosemount 8705 Flowtube Rosemount 8707 Flowtube Rosemount 8711 Flowtube

Approval

Codes

N0 •

N5 • •

E5

CD

KD

(1) CE Marking is standard on Rosemount 8705 and 8711. No hazardous

(2) Refer to Table 10 on page 36 for relation between ambient temperature,

For

Non-flammable

Fluids

(2)

(2)

location certifications are available on the Rosemount 570TM.

process temperature, and temperature class.

Flammable

Fluids

• •

(1)

For

For

Non-flammable

Fluids

• •

• • • •

For

Flammable

Fluids

Non-flammable

Fluids

For

FINAL

Flammable

Fluids

• •

• •

For

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

North American Certifications

Factory Mutual (FM)

N0 Division 2 Approval for

Non-Flammable Fluids (All Flowtubes)

Class I, Division 2, Groups A, B, C, D
Temp Code – T5 (8705/8711 at 60°C)
Temp Code – T3C (8707 at 60°C)

Dust-Ignition proof Class II/III, Division 1, Groups E, F, G
Temp Code – T6 (8705/8711 at 60°C)
Temp Code – T5 (8707 at 60°C)
Enclosure Type 4X

N5 Division 2 Approval for Flammable Fluids

(All Flowtubes)

Class I, Division 2, Groups A, B, C, D
Temp Code – T5 (8705/8711 at 60°C)
Temp Code – T3C (8707 at 60°C)
Dust-Ignition proof Class II/III, Division 1, Groups E, F, G
Temp Code – T6 (8705/8711 at 60°C)
Temp Code – T5 (8707 at 60°C)
Enclosure Type 4X

E5 Explosion-Proof (8711 Only)

Explosion-Proof for Class I, Division 1, Groups C, D
Temp Code – T6 at 60°C

Dust-Ignition proof Class II/III, Division 1, Groups E, F, G
Temp Code – T6 at 60°C

Class I, Division 2, Groups A, B, C, D
Temp Code – T5 at 60°C

Enclosure Type 4X

Rosemount 8742C/8700 Series

FINAL

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

Canadian Standards Association (CSA)

Suitable for Class I, Division 2, Groups A, B, C, D
Temp Code – T5 (8705/8711 at 60°C)
Temp Code – T3C (8707 at 60°C)

Dust-Ignition proof Class II/III, Division 1, Groups E, F, G
Enclosure Type 4X

European Certifications

N1 Pending - CENELEC Non-Sparking/Non-incendive

(8705/8711 Only)

Certificate No: KEMA02ATEX1302X II 3G
EEx nA [L] IIC T3... T6

SPECIAL CONDITIONS FOR SAFE USE (X):

To Be Determined

CD CENELEC Increased Safety (Zone 1)

with IS Electrodes (8711 only)

Certificate No: KEMA03ATEX2052X II 1/2G
EEx e ia IIC T3... T6 (Ta = -20 to +65°) (See Table 10)

0575

INSTALLATION INSTRUCTIONS:

At ambient temperature above 50°C, the flowmeter shall be used with
heat resistant cables with a temperature rating of at least 90°C.

A fuse with a rating of maximum 0,7 A according to IEC 127 shall be
included in the coil excitation circuit if the flowtubes are used with other
flow transmitters (e.g. Model 8712).

Rosemount 8742C/8700 Series

FINAL

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

KD CENELEC Increased Safety (Zone 1)

with IS Electrodes (8705 only)

Certificate No. KEMA 03ATEX2052X II 1/2G
EEx e ia IIC T3... T6 (Ta = -20 to 65°C) (See Table 10)

0575

INSTALLATION INSTRUCTIONS:

At ambient temperature above 50°C, the flowmeter shall be used with
heat resistant cables with a temperature rating of at least 90°C.

A fuse with a rating of maximum 0,7 A according to IEC 127 shall be
included in the coil excitation circuit if the flowtubes are used with
other flow transmitters (e.g. Model 8712).

Rosemount 8742C/8700 Series

FINAL

Quick Installation Guide

00825-0100-4793, Rev BA
July 2003

Rosemount 8742C/8700 Series

Table 10. Relation between ambient temperature, process temperature,
and temperature class

Meter Size

(Inches)

(1) This table is applicable for CD and KD option codes only.

Maximum Ambient

1

/2 149°F (65°C) 239°F (115°C)

1 149°F (65°C) 248°F (120°C)

1 95°F (35°C) 95°F (35°C)

11/2 149°F (65°C) 257°F (125°C)

11/2 140°F (60°C) 140°F (60°C)

2 149°F (65°C) 257°F (125°C)

2 149°F (65°C) 167°F (75°C)

2 104°F (40°C) 104°F (40°C)

3 - 4 149°F (65°C) 266°F (130°C)

3 - 4 149°F (65°C) 194°F (90°C)

3 - 4 131°F (55°C) 131°F (55°C)

3 - 4 104°F (40°C) 104°F (40°C)

6 149°F (65°C) 275°F (135°C)

6 149°F (65°C) 230°F (110°C)

6 149°F (65°C) 167°F (75°C)

6 140°F (60°C) 140°F (60°C)

8 - 36 149°F (65°C) 284°F (140°C)

8 - 36 149°F (65°C) 239°F (115°C)

8 - 36 149°F (65°C) 176°F (80°C)

8 - 36 149°F (65°C) 149°F (65°C)

(1)

Temperature

Maximum Process

Tem per atu re

FINAL

Temperature Class

T3
T3
T4
T3
T4
T3
T4
T5
T3
T4
T5
T6
T3
T4
T5
T6
T3
T4
T5
T6