Micro Motion Instruction Manual: Model IFT9703 Transmitter with Optional Display | Micro Motion Manuals & Guides

Instruction Manual

P/N 20001955, Rev. A
March 2004

Micro Motion

®

Model IFT9703 Transmitter
with Optional Display

Instruction Manual

Micro Motion

TM

Micro Motion

®

Model IFT9703 Transmitter
with Optional Display

Instruction Manual

For online technical support, refer to the EXPERT2™ tool at
www.expert2.com. To speak to a customer service
representative, call the support center nearest you:

• In U.S.A., phone [phone]-MASS (1-800-522-6277)

• In Canada and Latin America, phone [phone]

• In Asia, phone [phone]

• In the U.K., phone 0800 - 966 180 (toll-free)

• Outside the U.K., phone [phone]

©2004, Micro Motion, Inc. All rights reserved. Micro Motion is a registered trademark
of Micro Motion, Inc. The Micro Motion and Emerson logos are trademarks of
Emerson Electric Co. All other trademarks are property of their respective owners.

Contents

Chapter 1 Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.1 About this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.3 European installations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.4 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.5 Flowmeter components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Chapter 2 Getting Started. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.1 Safety, reliability, accessibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.1.1 Hazardous area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.1.2 Orientation and mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.1.3 Temperature, humidity, and vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.1.4 Visibility of tags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.2 Transmitters approved for ATEX Zone 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.3 Jumper settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.3.1 Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.3.2 Fault output levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.3.3 Re-installing the circuit board compartment cover. . . . . . . . . . . . . . . . . . . 9

Chapter 3 Power Supply and Output Wiring . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.2 Wiring guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.3 Connect power supply wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.4 Connect output wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.4.1 Milliamp output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.4.2 Milliamp output connected to Bell 202 multidrop network . . . . . . . . . . . . 14

3.4.3 Communication tools connected to milliamp output. . . . . . . . . . . . . . . . . 15

3.4.4 Pulse output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Chapter 4 Flowmeter Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.2 Customer service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.3 Startup procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.4 Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

4.4.1 Diagnostic LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

4.4.2 Optional display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

4.4.3 Startup mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

4.4.4 Operating mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

4.5 Flowmeter zeroing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

4.5.1 Zeroing procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

4.5.2 Diagnosing zero failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4.6 Configuration, calibration, and characterization . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4.7 Process measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Model IFT9703 Transmitter Instruction Manual i

Contents continued

Chapter 5 Configuration with a HART Communicator . . . . . . . . . . . . . . . . . . . 27

5.1 Configuration overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.2 Configuration parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.2.1 HART tag. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.2.2 Measurement units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.2.3 Flow cutoff . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

5.2.4 Damping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

5.2.5 Flow direction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.2.6 Range values for milliamp output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.2.7 Pulse output scaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.3 Calibration procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.3.1 Auto zero . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.3.2 Flow calibration procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.4 Characterization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Chapter 6 Configuration with ProLink II Software . . . . . . . . . . . . . . . . . . . . . 37

6.1 Configuration overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

6.2 Configuration parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

6.2.1 HART tag. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

6.2.2 Process variable measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

6.2.3 Output configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

6.3 Calibration procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

6.3.1 Auto zero . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

6.3.2 Flow calibration procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

6.4 Characterization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Chapter 7 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

7.1 Customer service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

7.2 General guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

7.3 Transmitter diagnostic tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

7.3.1 Diagnostic LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

7.3.2 Optional LCD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

7.3.3 Fault outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

7.4 Power supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

7.5 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

7.6 Over range and sensor failure conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

7.7 Slug flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

7.8 Transmitter failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

7.9 Digital diagnostic messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Appendix A IFT9703 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

A.1 Performance specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

A.2 Functional specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

A.2.1 Output signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

A.2.2 Local display (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

A.2.3 Low-flow cutoff. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

A.2.4 Slug-flow inhibit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

A.2.5 Damping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

A.2.6 Fault indication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

A.2.7 Output testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

A.2.8 Power supply options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

ii Model IFT9703 Transmitter Instruction Manual

Contents continued

A.3 Environmental limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

A.3.1 Temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

A.3.2 Process fluid temperature limits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

A.3.3 Humidity limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

A.3.4 Vibration limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

A.4 Density limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

A.5 Environmental effects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

A.6 Ambient temperature effect on milliamp output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

A.7 Shipping weight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

A.8 Hazardous area classifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Appendix B HART Communicator Menu Trees . . . . . . . . . . . . . . . . . . . . . . . . . 63

Appendix C Installing the Optional Display . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Appendix D Return Policy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

D.1 General guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

D.2 New and unused equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

D.3 Used equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Model IFT9703 Transmitter Instruction Manual iii

iv Model IFT9703 Transmitter Instruction Manual

Chapter 1

Before You Begin

1.1 About this manual

This instruction manual explains how to install, start up, configure, and troubleshoot the Micro
Motion IFT9703 transmitter for use with a Micro Motion R-Series sensor. For more information about
the sensor, see the sensor instruction manual.

1.2 Safety

Safety messages are provided throughout this manual to protect personnel and equipment. Read each
safety message carefully before proceeding to the next step.

Getting Started Flowmeter StartupPower Supply and Output WiringBefore You Begin

WARNING

Improper installation in a hazardous area can cause
an explosion.

For information about hazardous applications, refer to
Micro Motion ATEX, CSA, or UL installation instructions,
shipped with the transmitter or available from the Micro
Motion web site.

WARNING

Hazardous voltage can cause severe injury or death.

Make sure power is disconnected before installing
transmitter.

CAUTION

Improper installation could cause measurement error
or transmitter failure.

Follow all instructions to ensure transmitter will operate
correctly.

Model IFT9703 Transmitter Instruction Manual 1

Before You Begin continued

1.3 European installations

This Micro Motion product complies with all applicable European directives when properly installed
in accordance with the instructions in this manual. Refer to the EC declaration of conformity for
directives that apply to this product.

The EC declaration of conformity, with all applicable European directives, and the complete ATEX
Installation Drawings and Instructions are available on the internet at www.micromotion.com/atex or
through your local Micro Motion support center.

1.4 Definitions

• The term “sensor” refers to a Micro Motion sensor only.

• The term “flowmeter” refers to an IFT9703 transmitter and a sensor installed as a
flowmetering system.

1.5 Flowmeter components

The IFT9703 transmitter is available integrally mounted to a Micro Motion R-Series sensor. The
flowmeter includes the components shown in Figure 1-1.

The transmitter is available with an optional liquid crystal display (LCD), as shown in Figure 1-1,
except for ATEX Zone 1 areas.

Figure 1-1 IFT9703 transmitter with R-Series sensor

Optional LCD

Model IFT9703

transmitter

4X M8 mounting bolt
4X lock washer
4X flat washer

To rotate transmitter:
remove, then re-install to 12 ft-lb (16 N-m) torque

Field wiring compartment
(outputs)

Intrinsically safe wiring
compartment (sensor)

Flowmeter

R-Series
sensor

2 Model IFT9703 Transmitter Instruction Manual

Chapter 2

Getting Started

2.1 Safety, reliability, accessibility

Improper installation in a hazardous area could cause
an explosion.

Install the transmitter in an environment that is compatible
with the hazardous area specified on the approvals tag.

• For intrinsically safe sensor installations, use this
document with Micro Motion ATEX, CSA, or UL
installation instructions.

• For hazardous area installations in Europe, refer to
standard EN 60079-14 if national standards do not
apply.

WARNING

Getting Started Flowmeter StartupPower Supply and Output WiringBefore You Begin

2.1.1 Hazardous area

If you plan to mount the transmitter in a hazardous area, ensure that your equipment and installation
meet the hazardous area requirements. For more information about hazardous area classifications, see
Appendix A. See Figure 2-1 for the location of the approvals tag on your transmitter.

Model IFT9703 Transmitter Instruction Manual 3

Getting Started continued

Figure 2-1 Location of approvals tag

Hazardous area
approvals tag

2.1.2 Orientation and mounting

Orient the transmitter so wiring compartments and conduit openings are easily accessible.

• Transmitter dimensions are provided in Figure 2-2.

• For sensor dimensions, see the sensor product data sheet. For information about flowmeter
mounting and location, see the instruction manual that was shipped with the sensor.

• To rotate the transmitter on the sensor manifold, use the four supplied mounting bolt
assemblies. Each bolt assembly includes one M8 bolt, one lock washer, and one flat washer.
Remove the bolt assemblies, rotate the transmitter, then reinstall the bolt assemblies to 12 ft-lb
(16 N-m) of torque.

4 Model IFT9703 Transmitter Instruction Manual

Getting Started continued

Figure 2-2 IFT9703 installation dimensions

Dimensions in

4 1/4
(107)

inches

(mm)

1 3/4

(1)

(44)

3/4″–14 NPT or

M20 X1.5

for power wiring

Case ground

(1)If transmitter is ordered without display,

dimension is 1 3/8 (35).

5 3/4
(146)

1/2

(13)

Field wiring
compartment

3/4″–14 NPT or
M20 X1.5
for output wiring

Getting Started Flowmeter StartupPower Supply and Output WiringBefore You Begin

2.1.3 Temperature, humidity, and vibration

Install the transmitter according to specified limits:

• Ambient temperature

- without optional LCD: –22 to +131 °F (–30 to +55 °C)

- with optional LCD: 32 to 131 °F (0 to 55 °C)

• Humidity: 5 to 95% non-condensing

• Vibration: Meets IEC 68.2.6, 2 g

2.1.4 Visibility of tags

For personal and system safety, all tags attached to the transmitter housing must remain visible. Clean
or replace them as necessary.

Model IFT9703 Transmitter Instruction Manual 5

Getting Started continued

2.2 Transmitters approved for ATEX Zone 1

Explosion hazard

The circuit board compartment is rated EEx d
(flameproof), and should remain closed at all times after
the flowmeter has been installed.

To avoid risk of explosion in an explosive atmosphere:

• Read label that points to compartment cover before
accessing circuit board compartment. Figure 2-3
shows the location of the labels on the transmitter
housing.

• Shut off power, and wait at least 2 minutes before
removing EEx d (circuit board) compartment cover.
Figure 2-3 also identifies the EEx e (field wiring), EEx i
(sensor wiring), and EEx d (circuit board)
compartments.

WARNING

If the transmitter carries a ATEX Zone 1 approval, wiring compartments are labeled as shown in
Figure 2-3.

• The sensor wiring compartment is rated EEx i (intrinsically safe), and may be opened at any
time. See Label 1 in Figure 2-3.

• The field wiring compartment is rated EEx e (increased safety), and should remain closed
when power is on. See Label 2 in Figure 2-3.

• The circuit board compartment is rated EEx d (flameproof), and should remain closed at all
times after the transmitter has been installed. If the transmitter is approved by ATEX as
flameproof, the compartment has a lockout device, shown in Figure 2-3. The lockout device
must be loosened and rotated before the compartment cover can be unscrewed.

6 Model IFT9703 Transmitter Instruction Manual

Getting Started continued

Figure 2-3 Compartment tags and lockout device

Field wiring
compartment

Rated EEx e

Circuit board
compartment

Rated EEx d

2.3 Jumper settings

Unless otherwise specified on the order, jumpers are set so the transmitter generates downscale fault
outputs and enables flowmeter configuration. If jumper settings need to be changed, the procedure
should be performed before the transmitter is installed.

• To access security and fault output jumpers, unscrew the circuit board compartment cover.

• If the transmitter is approved by ATEX as flameproof, the compartment has a lockout device.
See Figure 2-3. The lockout device must be loosened and rotated before the compartment
cover can be unscrewed.

Label 1

Lockout device

Loosen and rotate
before opening
circuit board
compartment

CAUTION

Improper handling of transmitter components can
damage the transmitter.

Label 2

Sensor wiring
compartment

Rated EEx i

Getting Started Flowmeter StartupPower Supply and Output WiringBefore You Begin

• If a breaker bar is used for loosening the cover of the
circuit board compartment:

- Apply steady pressure to avoid chipping the paint on

the transmitter housing. Chipped paint can result in
corrosion of the housing. If paint becomes chipped,
repaint the housing.

- Do not apply too much pressure. Excessive torque

can damage the pipeline, transmitter, or sensor.

• To prevent electrostatic discharge, wear an anti-static
wrist strap while setting jumpers.

Model IFT9703 Transmitter Instruction Manual 7

Getting Started continued

2.3.1 Security

The security jumper enables the user to write-protect the flowmeter configuration, so it cannot be
changed using a HART communication device:

• With the security jumper OFF, the flowmeter configuration can be changed.

• With the security jumper ON, the flowmeter configuration cannot be changed.

The default setting is OFF. To set the security jumper, see Figure 2-4.

2.3.2 Fault output levels

The transmitter can be configured to produce downscale or upscale fault outputs. In a fault condition:

• Downscale: The milliamp output goes to 2 mA; the pulse output goes to 0 Hz.

• Upscale: The milliamp output goes to 22 mA; the pulse output goes to 7200 Hz.

• The diagnostic LED blinks ON four times per second, whether the setting is upscale or
downscale.

The default setting is downscale. To set the fault output jumper, see Figure 2-4.

Figure 2-4 Jumper location and settings

Default settings

With standoff beneath jumpers

Security

OFF

Optional settings

With standoff beneath jumpers

Security

OFF

Security

ON

Security

ON

Downscale
faults

Upscale
faults

Upscale
faults

Downscale
faults

8 Model IFT9703 Transmitter Instruction Manual

Getting Started continued

2.3.3 Re-installing the circuit board compartment cover

To re-install the cover of the circuit board compartment:

1. Screw the cover back onto the housing.

2. Hand-tighten the cover until it seats on the O-ring.

3. If the circuit board compartment has a lockout device, as shown in Figure 2-3, rotate the clamp
into place and push it into the slot. Use a 4-mm (5/32-inch) Allen wrench to tighten the lockout
screw to 5 inch-pounds (0,56 N-m) of torque.

Getting Started Flowmeter StartupPower Supply and Output WiringBefore You Begin

Model IFT9703 Transmitter Instruction Manual 9

10 Model IFT9703 Transmitter Instruction Manual

Chapter 3

Power Supply and Output Wiring

3.1 Overview

To wire the transmitter power supply and outputs:

• Review the wiring guidelines (see Section 3.2)

• Connect the power supply wiring (see Section 3.3)

• Connect the output wiring (see Section 3.4)

3.2 Wiring guidelines

• Install cable and wiring so they meet local code requirements.

• The transmitter has two separate ¾-inch NPT or M20 female conduit openings, which must
remain sealed to keep the transmitter watertight. See Figure 3-1 and Figure 3-2.

• The transmitter has a field wiring compartment for non-intrinsically safe power supply and
output wiring. See Figure 3-1 and Figure 3-2. For power supply and output wiring, loosen the
four captive screws that secure the cover of the field wiring compartment.

Getting Started Flowmeter StartupPower Supply and Output WiringBefore You Begin

3.3 Connect power supply wiring

Incorrect voltage, or installation with power supply
on, could cause transmitter damage or failure.

• Match power supply voltage with voltage indicated on
label in field wiring compartment.

• Shut off power before installing transmitter.

• Figure 3-1 shows the power supply wiring terminals.

• Wiring terminals accommodate 20 AWG (0,5 mm²) to 16 AWG (1,5 mm²) wire. If the
transmitter has a DC power supply, see Table 3-1 for wire length and size guidelines.

• Connect power supply wiring to the power supply terminals.

• A switch may be installed in the power supply line. For compliance with low-voltage directive
73/23/EEC, a switch in close proximity to the transmitter is required.

• Do not install power cable in the same conduit or cable tray as output wiring.

• The transmitter must be grounded with a maximum impedance of 1 ohm. Either the internal
ground screw or external case ground screw may be used as required by local policy or code.

CAUTION

Model IFT9703 Transmitter Instruction Manual 11

Power Supply and Output Wiring continued

Figure 3-1 Power supply wiring terminals

AC

transmitter

NL

85-250 VAC 20-30 VDC

If national standards are not in effect, adhere to these guidelines for grounding:

• Use copper wire, 14 AWG (2,5 mm²) or larger wire size.

• Keep all ground leads as short as possible, less than 1 ohm impedance.

• Connect ground leads directly to earth, or follow plant standards.

• For hazardous area installation in Europe, use standard EN 60079-14 as a guideline.

OR

Conduit opening for
power supply wiring

External ground screw

DC

transmitter

–+

for power supply

Internal ground screw

for power supply

Power
terminals

Field wiring

Field wiring
compartment

compartment

Sensor wiring
compartment

Table 3-1 Wire guidelines for DC power supply

Wire size Wire length

16 AWG (1,5 mm²) 1500 feet (450 meters)
18 AWG (0,75 mm²) 1000 feet (300 meters)
20 AWG (0,5 mm²) 600 feet (200 meters)

3.4 Connect output wiring

• Figure 3-2 shows the milliamp and pulse output terminals.

• Install twisted-pair, shielded cable, consisting of 20 AWG (0,5 mm²) to 16 AWG (1,5 mm²)
wire.

• For basic information on milliamp output wiring, see Section 3.4.1.

• For instructions on connecting the milliamp output to a Bell 202 multidrop network, see
Section 3.4.2.

• For instructions on connecting a HART device to the milliamp output, see Section 3.4.3.

• For instructions on pulse output wiring, see Section 3.4.4.

12 Model IFT9703 Transmitter Instruction Manual

Power Supply and Output Wiring continued

Figure 3-2 Output wiring terminals

Active milliamp output

Internally powered

Case ground

Passive pulse output

Requires pull-up resistor
to external 5–30 VDC
power supply

Conduit opening
for output wiring

Field wiring
compartment

Getting Started Flowmeter StartupPower Supply and Output WiringBefore You Begin

• Terminate output cable shielding at gland or conduit fitting.

• 360° termination of shielding is not necessary.

• Do not terminate shield inside wiring compartment.

• The pull-up resistor must be of sufficient value to limit the total loop current to less
than 500 ohms. Refer to Section 3.4.4 to determine the pull-up resistor needed.

3.4.1 Milliamp output

The 4–20 mA output is an active output that can represent the mass or volume flow rate. At the
factory, the output is configured to represent the range of flow rates that are measured in the
application. The milliamp output is active, does not require external power, and has the following
features:

• Can supply any loop-powered process indicator.

• Isolated to ±500 VDC from all other outputs and earth ground.

• Requires loop resistance of 250 to 600 ohms to produce digital signals for communication via
HART protocol.

• For milliamp output, the negative terminal can be grounded or left floating. If the output
communicates via HART protocol, the negative terminal should be grounded for optimal
performance.

Milliamp output performance is described below and illustrated in Figure 3-3.

Model IFT9703 Transmitter Instruction Manual 13

Power Supply and Output Wiring continued

Milliamp output range has changed.

Milliamp outputs will not output live signals between

2.0 and 3.8 mA, or between 20.5 and 22 mA.

Systems that rely on milliamp output signals in the ranges
listed above might not perform as expected. For IFT9703
transmitters shipped after October 1999, outputs will
saturate at 3.8 and 20.5 mA, unlike previous versions of
IFT9703 transmitters.

Reconfigure systems as necessary.

In compliance with the NAMUR NE43 standard:

• To represent process data, the milliamp output will produce a live signal in the range of

3.8–20.5 mA.

• The milliamp output will never produce a signal in the range of 2.0–3.8 mA, or in the range of

20.5–22 mA.

• To indicate a fault, the milliamp output will produce a signal of 2 or 22 mA. The fault output
level is determined by the fault-output jumper setting — downscale or upscale — as described
in Section 2.3.2.

CAUTION

Figure 3-3 Milliamp output performance

Downscale
fault indication level

Operating range (live signal)

23.8 20.5 22

3.4.2 Milliamp output connected to Bell 202 multidrop network

Devices in a Bell 202 multidrop network communicate by sending and receiving signals to and from
one another. HART protocol supports up to 15 transmitters in a Bell 202 multidrop network.

Other Rosemount SMART FAMILY transmitters can also participate in a HART-compatible network.

• A Bell 202 multidrop network uses twisted-pair wire, and allows only digital communication.

• A HART Communicator or other HART-compatible control system can communicate with
any device in the network over the same 2-wire pair.

Using multiple transmitters in a HART-compatible network requires assigning a unique address other
than 0 to each transmitter. Assigning an address other than 0 to the transmitter causes the primary mA
output to remain at a constant 4 mA level.

fault indication level

Upscale

Output in mA

14 Model IFT9703 Transmitter Instruction Manual

Power Supply and Output Wiring continued

Figure 3-4 shows how to connect wiring for a HART-compatible network.

• The maximum number depends upon the type of transmitters, the method of installation, and
other external factors.

• The primary mA output must produce a 4–20 mA current for the Bell 202 physical layer. The
Bell 202 layer will work when the primary mA output is at or above 2 mA output.

• SMART FAMILY devices require a minimum loop resistance of 250 ohms. Loop resistance
must not exceed 600 ohms.

Connect the mA outputs from each transmitter together so they terminate at a common load resistor,
with at least 250 ohms impedance, installed in series.

Figure 3-4 Typical HART network wiring

HART comm

tool

250 ohm

load

4–20 mA

IFT9703

RFT9739

field-mount

PV+17PV−

18

4–20 mA

IFT9703

RFT9739

rack-mount

PV+

CN2−

Z30

PV−

CN2−

D30

SMART
FAMILY

device

DC source required for
other HART 4–20mA
passive transmitters

SMART
FAMILY

device

24

DC

Note: For optimum HART communication, make
sure the output loop is single-point-grounded to
an instrument grade ground.

Getting Started Flowmeter StartupPower Supply and Output WiringBefore You Begin

3.4.3 Communication tools connected to milliamp output

ProLink II software from Micro Motion, AMS software from Emerson Process Management, or a
HART Communicator can be connected to the flowmeter’s milliamp output.

To connect using ProLink II, follow the instructions in the ProLink II manual. The AMS interface is
similar to the ProLink II interface. See the AMS manual for AMS-specific information.

To connect using a HART Communicator:

• Use the Bell 202-compatible cable that is supplied with the HART Communicator.

• Refer to the illustration and instructions below for wiring instructions.

Model IFT9703 Transmitter Instruction Manual 15

Power Supply and Output Wiring continued

Figure 3-5 HART Communicator connections

4–20 mA
terminals

HART

Communicator

DCS or PLC
with internal

R2

resistor

(Note 2)

4–20 mA terminals for
communicator hook-up

R1

(Note 1)

R3

(Note 3)

(1) If necessary, add resistance in the loop by installing resistor R1. SMART FAMILY® devices require a minimum

loop resistance of 250 ohms. Loop resistance must not exceed 600 ohms, regardless of the communication setup.
(2) The DCS or PLC must be configured for an active milliamp signal.
(3) Resistor R3 is required if the DCS or PLC does not have an internal resistor.

CAUTION

Connecting a HART device to the IFT9703 milliamp
output loop could cause transmitter output error.

If the primary variable is being used for flow control,
connecting a HART device to the milliamp output loop
could cause the transmitter 4–20 mA output to change,
which would affect flow control devices.

Set control devices for manual operation before
connecting a HART device to the IFT9703 milliamp output
loop.

16 Model IFT9703 Transmitter Instruction Manual

Power Supply and Output Wiring continued

3.4.4 Pulse output

The pulse output is a passive, open collector interface that can be connected to a pulse counter such as
the Micro Motion Series 3000 applications platform. The output has a range of 0.1 to 7200 Hz, which
represents the mass or volume flow rate. At the factory, the output is scaled so that the frequency is
proportional to the range of flow rates measured in the application.

• The pulse output is galvanically isolated to ±500 VDC from the rest of the flowmeter.

• When connected to the Series 3000 applications platform, the pulse output does not require an
external power source. Otherwise, the pulse output requires a 5–30 VDC power source.

• In the ON state, voltage will be less than 1 V.

Exceeding specified current limit through the pulse
output circuit will damage the flowmeter.

Make sure the current through the pulse output circuit
does not exceed 10 mA.

For acceptable resistance values at on and off states of
the pulse output, see illustration below.

CAUTION

Getting Started Flowmeter StartupPower Supply and Output WiringBefore You Begin

Acceptable

resistance

Voltage (Volts)

Resistance (Ohms)

• For wiring to any pulse counter, see Figures 3-6 and 3-7.

• For wiring to the Series 3000 applications platform, see Figures 3-8 through 3-10.

Model IFT9703 Transmitter Instruction Manual 17