Emerson Rosemount, 3144P Reference Manual

Reference Manual

00809-0100-4021, Rev GC

April 2014

Rosemount® 3144P Temperature Transmitter

Reference Manual

NOTICE

00809-0100-4021, Rev GC

Rosemount® 3144P Temperature
Transmitter

Title Page

April 2014

Read this manual before working with the product. For personal and system safety, and for
optimum product performance, make sure you thoroughly understand the contents before
installing, using, or maintaining this product.

Within the United States, Emerson Process Management has two toll-free assistance
numbers:

Customer Central
Technical support, quoting, and order-related questions.
1-800-999-9307 (7:00 am to 7:00 pm CST)

North American Response Center
Equipment service needs.
1-800-654-7768 (24 hours)

International
(952)-906-8888

The products described in this document are NOT designed for nuclear-qualified
applications. Using non-nuclear qualified products in applications that require
nuclear-qualified hardware or products may cause inaccurate readings.

For information on Rosemount nuclear-qualified products, contact your local Emerson
Process Management Sales Representative.

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Table of Contents

1Section 1: Introduction

1.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.1.1 Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.1.2 Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.2 Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

1.2.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

1.2.2 Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

1.2.3 Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

1.2.4 Moist or corrosive environments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

1.2.5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.2.6 Software compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

1.3 Return of materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.4 3144P revisions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

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1.5 Confirm HART revision capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

2Section 2: Installation

2.1 Safety messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.2 Commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

2.2.1 Setting the loop to manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

2.2.2 Set the switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

2.3 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

2.4 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

2.4.1 Typical North American installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

2.4.2 Typical European installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

2.4.3 In conjunction with a Rosemount 333 HART Tri-Loop™

(HART / 4–20 mA only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

2.4.4 LCD display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

2.4.5 Multichannel installation (HART / 4–20 mA only). . . . . . . . . . . . . . . . . . . . .20

2.5 Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

2.5.1 HART / 4–20 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

2.5.2 Foundation fieldbus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

Tab le of C ontents

2.5.3 Sensor connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

2.6 Power supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

2.6.1 Surges/transients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

2.6.2 Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

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3Section 3: HART® commissioning

3.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

3.2 Confirm HART revision capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

3.3 Safety messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

3.4 Field communicator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

3.4.1 Updating the HART communication software . . . . . . . . . . . . . . . . . . . . . . .30

3.4.2 Device dashboard menu tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32

3.4.3 Device dashboard Fast Key sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

3.5 Review configuration data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

3.5.1 Review. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

3.6 Check output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

3.6.1 Analog output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

3.7 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

3.7.1 Variable mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

3.7.2 Sensor configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

3.7.3 Change type and connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

3.7.4 Output units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

3.7.5 Sensor 1 serial number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

3.7.6 Sensor 2 serial number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

3.7.7 2-wire RTD offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

3.7.8 Terminal (body) temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

3.7.9 Dual-sensor configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

3.8 Device output configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91

3.8.1 PV range values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91

3.8.2 Process variable damping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92

3.8.3 Alarm and saturation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93

3.8.4 HART output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94

3.8.5 LCD display options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94

3.9 Device information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94

3.9.1 Tag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94

3.9.2 Long tag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94

3.9.3 Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95

3.9.4 Descriptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95

3.9.5 Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95

3.10Measurement filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95

3.10.150/60 Hz filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95

3.10.2Master reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96

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3.10.3Intermittent sensor detect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96

3.10.4Intermittent threshold. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96

3.10.5Open sensor holdoff. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97

3.11Diagnostics and service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97

3.11.1Loop test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .98

3.12Multidrop communication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .98

3.13Use with the HART Tri-Loop. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99

3.14Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

3.14.1Calibration frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

3.15Trim the transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

3.15.1Sensor input trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

3.15.2Active calibrator and EMF compensation. . . . . . . . . . . . . . . . . . . . . . . . . . 124

3.15.3Transmitter-sensor matching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

3.15.4D/A output trim or scaled output trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

3.15.5Output trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

3.15.6Scaled output trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

3.16Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

3.16.1Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

3.16.2LCD display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137

3.16.3Spare parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138

4Section 4: Foundation™ fieldbus configuration

4.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139

4.2 Safety messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139

4.3 General block information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140

4.3.1 Device description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140

4.3.2 Node address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140

4.3.3 Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140

4.3.4 Link Active Scheduler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

4.3.5 Capabilities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142

4.4 Foundation fieldbus function blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142

4.5 Resource block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144

4.5.1 Features and Features_Sel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144

4.5.2 PlantWeb

™

alerts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145

Tab le of C ontents

4.5.3 Recommended actions for PlantWeb alerts . . . . . . . . . . . . . . . . . . . . . . . 148

4.5.4 Recommended actions for field diagnostics per NE107 . . . . . . . . . . . . . 149

4.5.5 Resource block diagnostics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

4.6 Sensor transducer block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150

4.6.1 Sensor transducer block diagnostics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151

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4.7 LCD display transducer block. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

4.7.1 Custom meter configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

4.7.2 LCD display transducer block diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 153

4.8 Hot Backup

4.9 Analog Input (AI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

4.9.1 Simulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

4.9.2 Configure the AI block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156

4.9.3 Filtering. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159

4.9.4 Process alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159

4.9.5 Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160

4.9.6 Advanced features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160

4.9.7 Analog input diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161

4.10Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162

4.10.1Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162

™

transducer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154

4.10.2Trim the transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162

4.10.3Advanced diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164

4.10.4Statistical process monitoring (SPM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166

4.10.5SPM configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167

4.11Troubleshooting guides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168

4.11.1Foundation fieldbus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171

4.11.2LCD display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172

5Section 5: Maintenance

5.1 Safety messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175

5.2 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176

5.2.1 Test terminal (HART / 4–20 mA only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176

5.2.2 Sensor checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176

5.2.3 Electronics housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176

5.2.4 Transmitter diagnostics logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177

6Section 6: Certified safety instrumented system (safety-

certified)

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6.1 Safety instrumented systems (SIS) certification. . . . . . . . . . . . . . . . . . . . . . . . . . 179

6.2 Rosemount

6.3 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180

6.4 Commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180

6.5 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180

®

3144P safety certified identification . . . . . . . . . . . . . . . . . . . . . . . 179

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April 2014

6.6 Safety messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180

6.7 Certification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

6.8 3144P safety-certified identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

6.9 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

6.10Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

6.11Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

6.12Operation and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182

6.12.1Proof test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182

6.12.2Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184

6.13Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184

6.13.1Failure rate data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184

6.13.2Product life. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184

6.14Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184

7Section 7: Prior use (PU) safety instrumented system

7.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187

7.2 Safe failure fraction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188

7.3 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188

7.3.1 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188

7.3.2 Changing switch position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188

7.3.3 Proof test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190

AAppendix A: Reference data

A.1 HART® and Foundation™ fieldbus specifications . . . . . . . . . . . . . . . . . . . . . . . . 191

A.1.1 Functional specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191

A.1.2 Physical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191

A.1.3 Performance specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192

A.2 HART / 4–20 mA specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198

A.3 Foundation fieldbus specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200

A.4 Dimensional drawings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203

A.5 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206

Tab le of C ontents

A.6 Spare parts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211

BAppendix B: Product Certifications

B.1 Approved Manufacturing Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217

B.2 European Directive Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217

B.3 Ordinary Location Certification from FM Approvals . . . . . . . . . . . . . . . . . . . . . . 217

ix

Table of Contents

April 2014

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x

Table of Contents

Reference Manual

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Section 1 Introduction

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1

Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3

Return of materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5

3144P revisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 6

Confirm HART revision capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 8

1.1 Overview

1.1.1 Manual

This manual is designed to assist in the installation, operation, and maintenance of the
Rosemount

®

3144P.

Section 1: Introduction

April 2014

Section 1: Introduction

 Transmitter and Manual overview

 Considerations

 Return of material

Section 2: Installation

 Mounting

 Installation

 Wiring

 Power supply

Section 3: HART® commissioning

 Field communicator

 Configuration

 Multidrop communication

 Calibration

 Trim the transmitter

Section 4: Foundation™ fieldbus configuration

Introduction

 Calibration

 Hardware maintenance

 Diagnostic messaging

 Trim the transmitter

1

Section 1: Introduction

April 2014

Section 5: Maintenance

 Maintenance

 Tro u bl esh o oti ng

Section 6: Certified safety instrumented system (safety-certified)

 Information regarding Safety Certified transmitters

Appendix A: Reference data

 Specifications

 Dimensional drawings

 Ordering information

Appendix B: Product Certifications

 Product certifications

 Installation drawings

1.1.2 Transmitter

Reference Manual

00809-0100-4021, Rev GC

Industry-leading temperature transmitter delivers unmatched field reliability and innovative
process measurement solutions:

 Superior accuracy and stability

 Dual and single sensor capability with universal sensor inputs (RTD, T/C, mV, ohms)

 Comprehensive sensor and process diagnostics offering

 IEC 61508 safety certification

 Dual-compartment housing

 Large LCD display

 Selectable HART Revision (5 and 7) or FOUNDATION fieldbus protocols

Improve efficiency with best-in-class product specifications and capabilities:

 Reduce maintenance and improve performance with industry leading accuracy and

stability

 Improve measurement accuracy by 75% with Transmitter-Sensor Matching

 Ensure process health with system alerts and easy to use Device Dashboards

 Easily check device status and values on local LCD display with large percent range

graph

 Achieve high reliability and installation ease with the industry's most rugged dual

compartment design

2

Introduction

Reference Manual

00809-0100-4021, Rev GC

Optimize measurement reliability with diagnostics designed for any protocol on any host
system.

 Thermocouple Degradation Diagnostic monitors the health of a thermocouple loop,

 Minimum and Maximum Temperature Tracking tracks and records temperature

 Sensor Drift Alert detects sensor drift and alerts the user

 the Hot Backup

enabling preventative maintenance

extremes of the process sensors and the ambient environment

™

feature provides temperature measurement redundancy

Section 1: Introduction

April 2014

Refer to the following literature for a full range of compatible connection heads, sensors, and
thermowells provided by Emerson

 Temperature Sensors and Assemblies Product Data Sheet, Volume 1 (document

number 00813-0100-2654)

 Temperature Sensors and Assemblies Product Data Sheet, Metric (document number

00813-0200-2654)

1.2 Considerations

1.2.1 General

Electrical temperature sensors, such as resistance temperature detectors (RTDs) and
thermocouples (T/Cs), produce low-level signals proportional to temperature. The 3144P
transmitter converts low-level signals to HART or F
signals to the control system via two power/signal wires.

1.2.2 Electrical

Proper electrical installation is essential to prevent errors due to sensor lead resistance and
electrical noise. For HART communications, the current loop must have between 250 and 1100
ohms resistance. Refer to Figure 2-11 on page 22 for sensor and current loop connections.
F

OUNDATION fieldbus devices must have proper termination and power conditioning for reliable

operation. Shielded cables must be used for F
one place.

®

Process Management:

OUNDATION fieldbus and then transmits the

OUNDATION fieldbus and may only be grounded in

1.2.3 Environmental

Temperature effects

The transmitter will operate within specifications for ambient temperatures between –40 and
185 °F (–40 and 85 °C). Since heat from the process is transferred from the thermowell to the
transmitter housing, if the expected process temperature is near or beyond specification limits,
consider using additional thermowell lagging, an extension nipple, or a remote mounting
configuration to isolate the transmitter from the process. Figure 1-1 details the relationship
between housing temperature rise and extension length.

Introduction

3

Section 1: Introduction

(1,500 °F)

Temperature

Oven

(1,000 °F)

Temperature

Oven

(482 °F)

Temperature

Oven

Housing Temperature

Rise Above

Ambient °C (°F)

60 (108)

50 (90)

40 (72)

0

30 (54)

20 (36)

10 (18)

3

4

56

789

Extension Length (in.)

815 °C

250 °C

540 °C

22

3.6

April 2014

Figure 1-1. 3144P Transmitter Housing Temperature Rise versus Extension Length for a

Example:

Reference Manual

00809-0100-4021, Rev GC

Test Installation

The maximum permissible housing temperature rise (T) can be calculated by subtracting the
maximum ambient temperature (A) from the transmitter’s ambient temperature specification
limit (S). For instance, if A = 40 °C.

T = S - A

T = 85 °C – 40 °C

T = 45 °C

For a process temperature of 540 °C (1004 °F), an extension length of 3.6 inches (91.4 mm)
yields a housing temperature rise (R) of 22 °C (72 °F), providing a safety margin of 23 °C (73 °F).
A 6.0 inch (152.4 mm) extension length [R = 10 °C (50 °F)] offers a higher safety margin [35 °C
(95 °F)] and reduces temperature-effect errors but would probably require extra transmitter
support. Gauge the requirements for individual applications along this scale. If a thermowell
with lagging is used, the extension length may be reduced by the length of the lagging.

1.2.4 Moist or corrosive environments

The 3144P temperature transmitter has a highly reliable dual compartment housing designed
to resist moisture and corrosion. The sealed electronics module is mounted in a compartment
that is isolated from the terminal side with conduit entries. O-ring seals protect the interior
when the covers are properly installed. In humid environments, however, it is possible for
moisture to accumulate in conduit lines and drain into the housing.

4

Note

Each transmitter is marked with a tag indicating the approvals. Install the transmitter according
to all applicable installation codes, and approval and installation drawings (see Appendix B:

Product Certifications). Verify that the operating atmosphere of the transmitter is consistent

with the hazardous locations certifications. Once a device labeled with multiple approval types
is installed, it should not be reinstalled using any of the other labeled approval types. To ensure
this, the approval label should be permanently marked to distinguish the approval type(s) used.

Introduction

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00809-0100-4021, Rev GC

1.2.5 Installation

When choosing an installation location and position, take access to the transmitter into
account.

Terminal side of electronics housing

Mount the transmitter so the terminal side is accessible, allowing adequate clearance for cover
removal. Best practice is to mount the transmitter with the conduit entries in a vertical position
to allow for moisture drainage.

Circuit side of electronics housing

Mount the transmitter so the circuit side is accessible, providing adequate clearance for cover
removal. Additional room is required for LCD display installation. The transmitter may be
mounted directly to or remotely from the sensor. Using optional mounting brackets, the
transmitter may be mounted to a flat surface or a 2.0 inch (50.8 mm) diameter pipe (see

“Mounting” on page 192).

1.2.6 Software compatibility

Section 1: Introduction

April 2014

Replacement transmitters may contain revised software that is not fully compatible with the
existing software. The latest device descriptors (DD) are available with new field communicators
or they can be loaded into existing communicators at any Emerson Process Management
Service Center or via the Easy Upgrade process. For more information on upgrading a field
communicator, see Section 3.
To download new device drivers, visit www.AMSSuite.com.

1.3 Return of materials

To expedite the return process in North America, call the Emerson Process Management
National Response Center (800-654-7768) for assistance with any needed information or
materials.

The center will ask for the following information:

 Product model

 Serial numbers

 The last process material to which the product was exposed

The center will provide

 A Return Material Authorization (RMA) number

 Instructions and procedures to return goods that were exposed to hazardous

substances

Introduction

For other locations, contact an Emerson Process Management representative.

Note

If a hazardous substance is identified, a Material Safety Data Sheet (MSDS), required by law to be
available to people exposed to specific hazardous substances, must be included with the
returned materials.

5

Section 1: Introduction

April 2014

1.4 3144P revisions

HART

The initial release of the 3144P HART was device revision 3. Each additional revision had
incremental improvements.

Table 1-1. HART 3144P Revisions

Software release

date

April-2012 1.1.1 2

Feb-2007 N/A 1 5 4 00809-0100-4021

Dec 2003 N/A N/A 5 3 00809-0100-4021

(1) NAMUR Soft ware Revision is located in the hardware tag of the device. HART Soft ware Revision can be read using a HART capable

configuration tool.

(2 ) Dev ice D rive r fi le na mes use D evic e and DD R evis ion , e.g . 10_ 07. HART Pro toco l is desi gned to e nabl e leg acy dri ver r evi sion s to continue

to com municate with ne w HART de vices. To ac cess thi s funct ionalit y, the ne w device driver m ust be do wnloade d. It is r ecommen ded to
download the new device driver to ensure new functionality.

(3) HART Revision 5 and 7 Selectable, Thermocouple Degradation Diagnostic, Min/Max Tracking.

Table 1- 1 summarizes these changes.

Identify device Field device driver Review instructions

NAMUR

software

revision

HART

software

revision

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00809-0100-4021, Rev GC

HART

universal

(1)

(2)

revision

7 6

5 5

Device

revision

(3)

(3)

Manual document

number

00809-0100-4021

FOUNDATION fieldbus

The following table summarizes the 3144P fieldbus revision history.

Table 1-2. FOUNDATION fieldbus 3144P Revisions

Device

rev.

Rev 1 1.00.011 5 Initial release Mar. 2004

Rev 1 1.00.024 5 Minor product maintenance, software Sep. 2004

Rev 1 1.00.024 6 Minor product maintenance, hardware Dec. 2004

Rev 1 1.01.004 6 Software update Oct. 2005

Rev 1 1.01.010 7

Rev 2 2.02.003 7

Software

rev.

Hardware

rev.

Description

Component obsolescence hardware change and
software to support the hardware change.

FF Sensor and Process Diagnostic Release (D01):
Thermocouple Degradation Diagnostic and
Minimum and Maximum Temperature Tracking

Date

Feb. 2007

Nov. 2008

6

Introduction

Reference Manual

00809-0100-4021, Rev GC

Table 1-2. FOUNDATION fieldbus 3144P Revisions

Section 1: Introduction

April 2014

Device

rev.

Software

rev.

Hardware

rev.

Description

Rev 3 3.10.23 7 Device Compliance to ITK 6.0.1. Addition of NE107

device diagnostic information. Ease of use
improvements including:

 Hot Backup functionality has been

moved to the transducer block, allowing
easier configuration from the DD

 Device is shipped with the simulate

switch ON, allowing device alerts
simulation without cover removal

 Device has unique block names using the

last four digits (XXXX) of the output
board serial number, e.g. AI_1400_XXXX

 All blocks are instantiated before

shipping, including model option code
dependent blocks. The product also has
all parameters initialized so that its
primary measurement is available with
no user changes required.

 All devices ship will AI block scheduled.

 Customer will be able to use old DD files

when replacing a device with a newer rev
device - This is possible for devices with
device revision number 3 and above.

 Wherever possible, the product ships

with parameters initialized to common
values. The product shall ship with no
uninitialized parameters that will keep
the transmitter from providing its
primary measurement right out of the
box.

 The product's default block tags are be

less than or equal to 16 characters in
length.

 Custom function blocks were replaced

with enhanced function blocks.

 Default block tags include underscores,

“_”, instead of white spaces.

 The CF file has a better description of the

device, including meaningful defaults
and example values.

 Device provides means to properly range

graphs and charts in the device
dashboards.

Date

June 2013

Introduction

7

Section 1: Introduction

April 2014

1.5 Confirm HART revision capability

If using HART based control or asset management systems, confirm the HART capability of
those systems prior to transmitter installation. Not all systems are capable of communicating
with HART Revision 7 protocol. This transmitter can be configured for either HART Revision 5 or
Revision 7.

Switch HART revision mode

If the HART configuration tool is not capable of communicating with HART Revision 7, the
3144P will load a Generic Menu with limited capability. The following procedures will switch the
HART revision mode from the Generic Menu.

1. Manual Setup>Device Information>Identification>Message

a. To change to HART Revision 5, Enter: “HART5” in the Message field
b. To change to HART Revision 7, Enter: “HART7” in the Message field

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8

Introduction

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Section 2 Installation

Safety messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 9

Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 10

Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 13

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 15

Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 20

Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 24

2.1 Safety messages

Instructions and procedures in this section may require special precautions to ensure the safety
of the personnel performing the operations. Information that potentially raises safety issues is

indicated by a warning symbol ( ). Please refer to the following safety messages before
performing an operation preceded by this symbol.

Section 2: Installation

April 2014

Explosions could result in death or serious injury.

 Do not remove the transmitter cover in explosive atmospheres when the circuit is live.
 Before connecting a Field Communicator in an explosive atmosphere, make sure the

instruments in the loop are installed in accordance with intrinsically safe or
non-incendive field wiring practices.

 Verify that the operating atmosphere of the transmitter is consistent with the

appropriate hazardous locations certifications.

 Both transmitter covers must be fully engaged to meet explosion-proof requirements.

Failure to follow these installation guidelines could result in death or serious injury.

 Make sure only qualified personnel perform the installation.

Process leaks could result in death or serious injury.

 Install and tighten thermowells or sensors before applying pressure, or process

leakage may result.

 Do not remove the thermowell while in operation. Removing while in operation may

cause process fluid leaks.

Electrical shock could cause death or serious injury. If the sensor is installed in a
high-voltage environment and a fault or installation error occurs, high voltage may
be present on the transmitter leads and terminals.

 Use extreme caution when making contact with the leads and terminals.

9Installation

Section 2: Installation

No

Yes

No

Yes

Bench

Calibration?

BASIC SETUP

Refer to

Section 5:

Maintenance

Set Units

Set Range

Valu es - HART

Set Sensor

Types

Set Number of

Wires

VERIFY

Simulate Sensor

Input

FIELD INSTALL

Set Jumpers or

Switches

Mount the

Tra ns mit te r

Power the

Tra ns mit te r

Check for

Process Leaks

Wire the

Tra ns mit te r

START HERE

Done

Within

Specifications?

Set Damping

April 2014

2.2 Commissioning

The 3144P must be configured for certain basic variables to operate. In many cases, these
variables are pre-configured at the factory. Configuration may be required if the variables need
to be changed.

Commissioning consists of testing the transmitter and verifying transmitter configuration data.
Rosemount

Commissioning the transmitter on the bench before installation using a field communicator or
AMS

For more information on using the field communicator with the 3144P transmitter, see “HART®

commissioning” on page 29. For more information on using the 3144 with F

fieldbus, see Section 4: Foundation™ fieldbus configuration.

Figure 2-1. Installation Flowchart

®

3144P transmitters can be commissioned either before or after installation.

™

Device Manager ensures that all transmitter components are in working order.

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00809-0100-4021, Rev GC

OUNDATION

™

2.2.1 Setting the loop to manual

10

Set the process application loop to manual when sending or requesting data that would disrupt
the loop or change the output of the transmitter. The field communicator or AMS Device
Manager will prompt to set the loop to manual, when necessary. Acknowledging the prompt
does not set the loop to manual, it is only a reminder. Setting the loop to manual is a separate
operation.

Installation

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00809-0100-4021, Rev GC

2.2.2 Set the switches

Section 2: Installation

April 2014

HART

®

Without an LCD display

1. If the transmitter is installed in a loop, set the loop to manual mode and disconnect the
power.

2. Remove the housing cover on the electronics side of the transmitter. Do not remove
the transmitter cover in explosive atmospheres with a live circuit.

3. Set the switches to the desired position (see Figure 2-2).

4. Replace the transmitter cover. Both transmitter covers must be fully engaged to meet
explosion-proof requirements.

5. Apply power and set the loop to automatic mode.

With an LCD display

1. If the transmitter is installed in a loop, set the loop to manual mode and disconnect the
power.

2. Remove the housing cover on the electronics side of the transmitter. Do not remove
the transmitter cover in explosive atmospheres with a live circuit.

3. Unscrew the LCD display screws and gently slide the meter straight off.

4. Set the switches to the desired position (see Figure 2-2).

5. Gently slide the LCD display back into place, taking extra precautions with the 10 pin
connection.

6. Replace and tighten the LCD display screws to secure the LCD display.

7. Replace the transmitter cover. Both transmitter covers must be fully engaged to meet
explosion-proof requirements.

8. Apply power and set the loop to automatic mode.

Installation

11

Section 2: Installation

A

C

D

B

April 2014

FOUNDATION fieldbus

Without an LCD display

1. If the transmitter is installed in a loop, set the loop to Out-of-Service (OOS) mode (if

2. Remove the housing cover on the electronics side of the transmitter. Do not remove

3. Set the switches to the desired position (see Figure 2-1).

4. Replace the transmitter cover. Both transmitter covers must be fully engaged to meet

5. Apply power and set the loop to In-Service mode.

With an LCD display

1. If the transmitter is installed in a loop, set the loop to OOS (if applicable) and disconnect

Reference Manual

00809-0100-4021, Rev GC

applicable) and disconnect the power.

the transmitter cover in explosive atmospheres with a live circuit.

explosion-proof requirements.

the power.

2. Remove the housing cover on the electronics side of the transmitter. Do not remove
the transmitter cover in explosive atmospheres with a live circuit.

3. Unscrew the LCD display screws and gently pull the meter straight off.

4. Set the switches to the desired position.

5. Replace and tighten the LCD display screws to secure the LCD display.

6. Replace the transmitter cover. Both transmitter covers must be fully engaged to meet
explosion-proof requirements.

7. Apply power and set the loop to In-Service mode.

Figure 2-2. Transmitter Switch Locations

(1) Alarm and Security (HART), Simulate and Write Protect (FOUNDATION fieldbus)

12

Dimensions are in inches (millimeters).

A. Switches
B. LCD display connector
C. 4.4 (112)
D. 4.4 (112)

(1)

Installation

Reference Manual

00809-0100-4021, Rev GC

Write protect switch (HART and FOUNDATION fieldbus)

The transmitter is equipped with a write-protect switch that can be positioned to prevent
accidental or deliberate change of configuration data.

Alarm switch (HART)

An automatic diagnostic routine monitors the transmitter during normal operation. If the
diagnostic routine detects a sensor failure or an electronics failure, the transmitter goes into
alarm (high or low, depending on the position of the failure mode switch).

The analog alarm and saturation values used by the transmitter depend on whether it is
configured to standard or NAMUR-compliant operation. These values are also custom-configu­rable in both the factory and the field using the HART Communications. The limits are:

 21.0  I  23 for high alarm

 3.5  I  3.75 for low alarm

Table 2-1. Values for standard and NAMUR operation

Section 2: Installation

April 2014

Standard operation (factory default) NAMUR-compliant operation

Fail High 21.75 mA  I  23.0 mA Fail High 21 mA  I  23.0 mA

High Saturation I  20.5 mA High Saturation I  20.5 mA

Low Saturation I  3.90 mA Low Saturation I  3.8 mA

Fail Low I  3.75 mA Fail Low I  3.6 mA

Simulate switch (FOUNDATION fieldbus)

Simulate switch is used to replace the channel value coming from the Sensor Transducer Block.
For testing purposes, it manually simulates the output of the Analog Input Block to a desired
value.

2.3 Mounting

If possible, the transmitter should be mounted at a high point in the conduit run so moisture
from the conduits will not drain into the housing. The terminal compartment could fill with
water if the transmitter is mounted at a low point in the conduit run. In some instances, the
installation of a poured conduit seal, such as the one pictured in Figure 2-4, is advisable. Remove
the terminal compartment cover periodically and inspect the transmitter for moisture and
corrosion.

Installation

13

Section 2: Installation

Conduit

lines

Conduit

lines

A

D

B

E

F

C

April 2014

Figure 2-3. Incorrect Conduit installation

Figure 2-4. Recommended Mounting with Drain Seal

Reference Manual

00809-0100-4021, Rev GC

A. Sealing compound
B. Union coupling with extension
C. Conduit for field wiring
D. Thermowell
E. Sensor hex
F. Poured conduit seal (where required)

If mounting the transmitter directly to the sensor assembly, use the process shown in

Figure 2-5. If mounting the transmitter apart from the sensor assembly, use conduit between

the sensor and transmitter. The transmitter accepts male conduit fittings with
M20 × 1.5 (CM 20), PG 13.5 (PG 11), or JIS G

1

JIS G

/2 threads are provided by an adapter). Make sure only qualified personnel perform the

1

/2 threads (M20 × 1.5 (CM 20), PG 13.5 (PG 11), or

1

/2–14 NPT,

installation.

The transmitter may require supplementary support under high-vibration conditions,
particularly if used with extensive thermowell lagging or long extension fittings. Pipe-stand
mounting, using one of the optional mounting brackets, is recommended for use in
high-vibration conditions.

14

Installation

Reference Manual

A

B

F

E

D

C

00809-0100-4021, Rev GC

2.4 Installation

2.4.1 Typical North American installation

1. Attach the thermowell to the pipe or process container wall. Install and tighten
thermowells and sensors, then apply process pressure to perform a leak test.

2. Attach necessary unions, couplings, and extension fittings. Seal the fitting threads with
PTFE tape (if required).

3. Turn the sensor into the thermowell or directly into the process (depending on
installation requirements).

4. Verify all sealing requirements for severe environments or to satisfy code requirements.

5. Attach the transmitter to the thermowell/sensor assembly. Seal all threads with PTFE
tape (if required).

6. Pull sensor leads through the extensions, unions, or couplings into the terminal side of
the transmitter housing.

Section 2: Installation

April 2014

7. Install field wiring conduit to the remaining transmitter conduit entry.

8. Pull the field wiring leads into the terminal side of the transmitter housing.

9. Attach the sensor leads to the transmitter sensor terminals. Attach the power leads to
the transmitter power terminals.

10. Attach and tighten both transmitter covers since both transmitter covers must be fully
engaged to meet explosion-proof requirements.

Figure 2-5. Typical Direct Mounted Configuration

Dimensions are in inches (millimeters).
A. Thermowell
B. Extension
C. Union or coupling
D. Extension fitting length
E. 3.2 (81)
F. Conduit for field wiring (dc power)

Installation

15

Section 2: Installation

B

A

C

D

E

April 2014

Note

The National Electrical Code requires that a barrier or seal be used in addition to the primary
(sensor) seal to prevent process fluid from entering the electrical conduit and continuing to the
control room. Professional safety assistance is recommended for installation in potentially
hazardous processes.

2.4.2 Typical European installation

1. Mount the thermowell to the pipe or the process container wall. Install and tighten
thermowells and sensors then apply pressure and perform a leak check before starting
the process.

2. Attach a connection head to the thermowell.

3. Insert the sensor into the thermowell and wire it to the connection head, using the
wiring diagram located on the inside of the connection head.

4. Mount the transmitter to a 2-inch (50 mm) pipe or a suitable panel using one of the
optional mounting brackets. The B4 bracket is shown in Figure 2-6.

Reference Manual

00809-0100-4021, Rev GC

5. Attach cable glands to the shielded cable running from the connection head to the
transmitter conduit entry.

6. Run the shielded cable from the opposite conduit entry on the transmitter back to the
control room.

7. Insert the shielded cable leads through the cable entries into the connection head and
the transmitter. Connect and tighten the cable glands.

8. Connect the shielded cable leads to the connection head terminals, located inside of
the connection head, and the sensor wiring terminals, located inside of the transmitter
housing. Avoid contact with the leads and the terminals.

Figure 2-6. Typical Remote Mounted Configuration with Cable Glands

A. Cable gland
B. 2-inch pipe
C. Shielded cable from sensor to transmitter
D. B4 Mounting bracket
E. Shielded cable from transmitter to control room

16

Installation

Reference Manual

00809-0100-4021, Rev GC

Section 2: Installation

April 2014

2.4.3 In conjunction with a Rosemount 333 HART Tri-Loop
(HART / 4–20 mA only)

Use the dual-sensor option 3144P transmitter that is operating with two sensors in conjunction
with a 333 HART Tri-Loop HART-to-Analog Signal Converter to acquire an independent 4–20 mA
analog output signal for each sensor input. The 3144P transmitter can be configured to output
four of the six following digital process variables:

 Sensor 1

 Sensor 2

 Differential temperature

 Average temperature

 First good temperature

 Transmitter terminal temperature

The HART Tri-Loop reads the digital signal and outputs any or all of these variables into as many
as three separate 4–20 mA analog channels.

Refer to Figure 2-7 for basic installation information. Refer to the 333 HART Tri-Loop
HART-to-Analog Signal Converter Reference Manual (document number 00809-0100-4754) for
complete installation information.

™

Installation

17

Section 2: Installation

START HERE

Unpack the

Tri -L oop

Review the

Tri -L oop

Reference

Manual

Install the

3144P

Set the 3144P

Burst Command

Order

Set the 3144P to

Burst HART

Command 3

Review Tri-Loop

Installation

Considerations

Mount the

Tri -Loop to a

DIN Rail

Run Wires from

3144P to Burst

Input Terminals

Install Channel 1

Wires from

Tri-Loop to

Control Room

INSTALL THE

TRI-LOOP

OPTIONAL:

Install Channel 2

Wires from

Tri-Loop to

Control Room

OPTIONAL:

Install Channel 3

Wires from

Tri-Loop to

Control Room

Pass System

Tes t?

COMMISSION

THE TRI-LOOP

Configure the

Tri -Loop to

Receive 3144P

Burst

Commands

3144P

Installed?

Refer to the

HART Tri-Loop

Reference

Manual

DONE

No

Yes

Yes

No

April 2014

Reference Manual

00809-0100-4021, Rev GC

Figure 2-7. HART Tri-Loop Installation Flowchart

(1)

2.4.4 LCD display

Transmitters ordered with the LCD display option (code M5) are shipped with the LCD display
installed. After-market installation of the LCD display on a conventional 3144P transmitter
requires a small instrument screwdriver and the LCD display kit, which includes:

(1) See “Use with the HART Tri-Loop” on page 99 for configuration information.

18

 LCD display assembly

 Extended cover with cover O-ring in place

 Captive screws (quantity 2)

 10-pin interconnection header

Installation

Reference Manual

00809-0100-4021, Rev GC

To install the LCD display:

1. If the transmitter is installed in a loop, set the loop to manual (HART) / out-of-service

2. Remove the housing cover from the electronics side of the transmitter. Do not remove

3. Ensure that the transmitter write protect switch is set to the Off position. If transmitter

4. Insert the interconnection header in the 10-pin socket on the face of the electronics

5. The meter can be rotated in 90-degree increments for easy viewing. Position one of the

6. Attach the LCD display assembly to the interconnection pins, then thread and tighten

Section 2: Installation

April 2014

(F

OUNDATION fieldbus) mode and disconnect the power.

the transmitter covers in explosive atmospheres with a live circuit.

security is On, the transmitter cannot be configured to recognize the LCD display. If
security On is desired, configure the transmitter for the LCD display, and then install the
meter.

module. Insert the pins into the electronics LCD display interface.

four 10-pin sockets on the back of the meter to accept the interconnection header.

the LCD display screws into the holes on the electronics module.

7. Attach the extended cover; tighten at least one-third turn after the O-ring contacts the

transmitter housing. Both transmitter covers must be fully engaged to meet explosion
proof requirements.

8. Apply power and set the loop to automatic (HART) / in-service (F

OUNDATION fieldbus)

mode.

Once the LCD display is installed, configure the transmitter to recognize the meter option. Refer
to “LCD display options” on page 94 (HART) or “LCD display transducer block” on page 152
(F

OUNDATION fieldbus).

Note

Observe the following LCD display temperature limits:
Operating:–4 to 185 °F (–20 to 85 °C)
Storage:–50 to 185 °F (–45 to 85 °C)

Installation

19

Section 2: Installation

Tra ns mit te r

no. 1

Readout or

Controller no. 1

Tra ns mit te r

no. 2

Readout or

Controller no. 2

Battery
Backup

To Additional
Tra ns mit te rs

dc Power

supply

Between 250 and 1100  If

No Load Resistor

R

Lead

R

Lead

R

Lead

April 2014

00809-0100-4021, Rev GC

2.4.5 Multichannel installation (HART / 4–20 mA only)

Several transmitters can be connected to a single master power supply (see Figure 2-8). In this
case, the system may be grounded only at the negative power supply terminal. In multichannel
installations, where several transmitters depend on one power supply and the loss of all
transmitters would cause operational problems, consider an uninterrupted power supply or a
back-up battery. The diodes shown in Figure 2-8 prevent unwanted charging or discharging of
the back-up battery.

Figure 2-8. Multichannel Installations

Reference Manual

2.5 Wiring

2.5.1 HART / 4–20 mA

Field wiring

The power to the transmitter is supplied over the signal wiring. Signal wiring does not need to
be shielded, but twisted pairs should be used for best results. Do not run unshielded signal
wiring in conduit or open trays with power wiring or near heavy electrical equipment because
high voltage may be present on the leads and may cause an electrical shock. To wire the
transmitter for power:

1. Remove the transmitter covers. Do not remove the transmitter covers in an explosive

atmosphere when the circuit is live.

2. Connect the positive power lead to the terminal marked “+” and the negative power

lead to the terminal marked “–” as shown in Figure 2-9. Crimped lugs are
recommended when wiring to screw terminals.

3. Tighten the terminal screws to ensure good contact is made. No additional power

wiring is required.

4. Replace the transmitter covers making sure both transmitter covers are fully engaged

Note

Do not apply high voltage (e.g., AC line voltage) to the power or sensor terminals, since high

to meet explosion-proof requirements.

voltage can damage the unit.

20

Installation

Reference Manual

“+”

A

Tes t

B

“-”

“+”

“-”

B

A

Wiring connections

Wiring connections

(with “T1” integral transient protection option)

4-wire RTD

and Ohms

T/Cs and

Millivolts

RTD with

Compensation Loop

(1)

2-wire RTD

and Ohms

3-wire RTD

and Ohms

(2)

T/Hot Backup/Dual

Sensor with

2 RTDs

T/Hot Backup/Dual

Sensor with 2

Thermocouples

T/Hot

Backup/Dual

Sensor with RTDs/

Thermocouples

(2)

T/Hot

Backup/Dual

Sensor with

RTDs/

Thermocouples

(2)

T/Hot Backup/Dual

Sensor with 2 RTDs

with Compensation

Loop

(2)

00809-0100-4021, Rev GC

Figure 2-9. Transmitter Terminal Block

A. Sensor terminals (1 – 5)
B. Ground

Figure 2-10. Sensor Wiring Diagram for HART / 4–20 mA

3144P Single-sensor connections diagram

Section 2: Installation

April 2014

3144P dual-sensor connections diagram

(1) Transmitter must be configured for a 3-wire RTD in order to recognize an RTD with a compensation loop.
(2) Emerson Process Management provides 4-wire sensors for all single-element RTDs. Use these RTDs in 2-wire or 3-wire configurations by leaving the unneeded leads

disconnected and insulated with electrical tape.

Installation

21

Section 2: Installation

Power/Signal terminals

The signal wire may be grounded at any
point or left ungrounded.

Power

supply

250   R

L

 1100 

AMS Device Manager software or a Field Communicator can be connected at any
termination point in the signal loop. The signal loop must have between 250 and 1100
ohms load for communications.

or*

April 2014

Power/current loop connections

Use copper wire of a sufficient size to ensure that the voltage across the transmitter power
terminals does not go below 12.0 Vdc.

1. Connect the current signal leads as shown in Figure 2-11.

2. Recheck the polarity and connections.

3. Turn the power ON.

For information about multichannel installations, refer to page 20.

Note

Do not connect the power/signal wiring to the test terminal. The voltage present on the
power/signal leads may burn out the reverse-polarity protection diode built into the test
terminal. If the test terminal’s reverse polarity protection diode is burned out by the incorrect
power/signal wiring, the transmitter can still be operated by jumping the current from the test
terminal to the “–” terminal. See “Test terminal (HART / 4–20 mA only)” on page 176 for use of
the terminal.

Reference Manual

00809-0100-4021, Rev GC

Figure 2-11. Connecting a Field Communicator to a Transmitter Loop (HART/ 4–20 mA).

22

Installation

Reference Manual

A

B

C

C

B

A

Wiring connections

Wiring connections

(with “T1” integral transient protection option)

4-wire RTD

and Ohms

T/Cs and

Millivolts

RTD with

Compensation Loop

(1)

2-wire RTD

and Ohms

3-wire RTD

and Ohms

(2)

T/Hot

Backup/Dual Sensor

with 2 RTDs

T/Hot Backup/Dual

Sensor with 2

Thermocouples

T/Hot

Backup/Dual

Sensor with RTDs/

Thermocouples

(2)

T/Hot Backup/Dual

Sensor with RTDs/

Thermocouples

(2)

T/Hot Backup/Dual

Sensor with 2 RTDs with

Compensation Loop

(2)

00809-0100-4021, Rev GC

2.5.2 FOUNDATION fieldbus

Figure 2-12. Transmitter Terminal Block

A. Sensor terminals (1 – 5)
B. Ground
C. Power terminals

Section 2: Installation

April 2014

Figure 2-13. Sensor Wiring Diagram for FOUNDATION fieldbus

3144P single-sensor connections diagram

3144P dual-sensor connections diagram

(1) Transmitter must be configured for a 3-wire RTD in order to recognize an RTD with a compensation loop.
(2) Emerson Process Management provides 4-wire sensors for all single-element RTDs. Use these RTDs in 2-wire or 3-wire configurations by leaving the unneeded leads

disconnected and insulated with electrical tape.

2.5.3 Sensor connections

Installation

The correct sensor wiring connections to the transmitter sensor terminals are shown in Figure

2-9 on page 21 (HART) and Figure 2-14 on page 25 (F

adequate sensor connection, anchor the sensor lead wires beneath the flat washer on the

OUNDATION fieldbus). To ensure an

terminal screw. Do not remove the transmitter cover in explosive atmospheres if the circuit is
live. Both transmitter covers must be fully engaged to meet explosion-proof requirements. Use
extreme caution when making contact with the leads and terminals.

23

Section 2: Installation

April 2014

RTD or ohm inputs

If the transmitter is mounted remotely from a 3- or 4-wire RTD, it will operate within specifica­tions, without recalibration, for lead wire resistances of up to 60 ohms per lead (equivalent to
1,000 feet of 20 AWG wire). In this case, the leads between the RTD and transmitter should be
shielded. If using only two leads (or a compensation loop lead wire configuration), both RTD
leads are in series with the sensor element, so significant errors can occur if the lead lengths
exceed one foot of 20 AWG wire. For longer runs, attach a third or fourth lead as described
above. To eliminate 2-wire lead resistance error, the 2-wire offset command can be used. This
allows the user to input the measured lead wire resistance, resulting in the transmitter adjusting
the temperature to correct the error.

Thermocouple or millivolt inputs

For direct-mount applications, connect the thermocouple directly to the transmitter. If
mounting the transmitter remotely from the sensor, use appropriate thermocouple extension
wire. Make connections for millivolt inputs with copper wire. Use shielding for long runs of wire.

Note

For HART transmitters, the use of two grounded thermocouples with a dual option 3144P
transmitter is not recommended. For applications in which the use of two thermocouples is
desired, connect either two ungrounded thermocouples, one grounded and one ungrounded
thermocouple, or one dual element thermocouple.

Reference Manual

00809-0100-4021, Rev GC

2.6 Power supply

HART

An external power supply is required to operate the 3144P (not included). The input voltage
range of the transmitter is 12 to 42.4 Vdc. This is the power required across the transmitter
power terminals. The power terminals are rated to 42.4 Vdc. With 250 ohms of resistance in the
loop, the transmitter requires a minimum of 18.1 Vdc for communication.

The power supplied to the transmitter is determined by the total loop resistance and should not
drop below the lift-off voltage. The lift-off voltage is the minimum supply voltage required for
any given total loop resistance. See Figure 2-14 to determine the required supply voltage. If the
power drops below the lift-off voltage while the transmitter is being configured, the transmitter
may output incorrect information.

The dc power supply should provide power with less than 2% ripple. The total resistance load is
the sum of the resistance of the signal leads and the load resistance of any controller, indicator,
or related piece of equipment in the loop. Note that the resistance of intrinsic safety barriers, if
used, must be included.

Note

Permanent damage to the transmitter could result if the voltage drops below 12.0 Vdc at the
power terminals, when changing transmitter configuration parameters.

24

Installation

Reference Manual

1240

1000

750

250

0

10

12.0

20 30 40 42.4

Supply Voltage (Vdc)

Operating

Region

4–20 mA dc

Load (Ohms)

500

1100

00809-0100-4021, Rev GC

Figure 2-14. Load Limits

FOUNDATION fieldbus

Powered over FOUNDATION fieldbus with standard fieldbus power supplies, the transmitter
operates between 9.0 and 32.0 Vdc, 11 mA maximum. Transmitter power terminals are rated to

42.4 Vdc.

Section 2: Installation

April 2014

Maximum Load = 40.8 X (Supply Voltage - 12.0)

The power terminals on the 3144P with F

2.6.1 Surges/transients

The transmitter will withstand electrical transients of the energy level usually encountered in
static discharges or induced switching; however, high-voltage transients, such as those induced
in wiring from nearby lightning strikes, can damage both the transmitter and the sensor.

The integral transient protection terminal block (option code T1) protects against high-voltage
transients. The integral transient protection terminal block is available as an ordered option, or
as an accessory. Refer to “Transient protection (option code T1)” on page 198 for more
information.

2.6.2 Grounding

Sensor shielding

The currents in the leads induced by electromagnetic interference can be reduced by shielding.
Shielding carries the current to ground and away from the leads and electronics. If the ends of
the shields are adequately grounded, only a small amount of current will actually enter the
transmitter.

If the ends of the shield are left ungrounded, voltage is created between the shield and the
transmitter housing and also between the shield and earth at the element end. The transmitter
may not be able to compensate for this voltage, causing it to lose communication and/or go into

Installation

alarm. Instead of the shield carrying the currents away from the transmitter, the currents will
now flow through the sensor leads into the transmitter circuitry where it will interfere with the
circuit operation.

OUNDATION fieldbus are polarity insensitive.

25

Section 2: Installation

A

B

D

C

E

A

B

D

C

E

D

April 2014

Shielding recommendations

The following are recommended practices from API Standard 552 (Transmission Standard)
section 20.7, and from field and laboratory testing. If more than one recommendation is given
for a sensor type, start with the first technique shown or the technique that is recommended for
the facility by its installation drawings. If the technique does not eliminate the transmitter
alarms, try another technique. If all of the techniques do not eliminate or prevent the
transmitter alarms because of high EMI, contact an Emerson Process Management representa­tive.

Ungrounded thermocouple, mV, and RTD/ohm Inputs

Option 1: Recommended for ungrounded transmitter housing

1. Connect the signal wiring shield to the sensor wiring shield.

2. Ensure the two shields are tied together and electrically isolated from the transmitter

3. Ground the shield at the power supply end only.

Reference Manual

00809-0100-4021, Rev GC

housing.

4. Ensure the shield at the sensor is electrically isolated from the surrounding fixtures that

may be grounded.

a. Connect shields together, electrically isolated from the transmitter.

A. Sensor Wires C. 4-20 mA loop E. DCS
B. Transmitter D. Shield ground point

Option 2: Recommended for grounded transmitter housing

1. Ground the transmitter housing then connect the sensor wiring shield to the

transmitter housing (see “Transmitter housing” on page 27).

2. Ensure the shield at the sensor end is electrically isolated from surrounding fixtures that

may be grounded.

3. Ground the signal wiring shield at the power supply end.

A. Sensor Wires C. 4-20 mA loop E. DCS
B. Transmitter D. Shield ground point

26

Installation

Reference Manual

A

B

D

C

E

D

A

B

D

C

E

D

00809-0100-4021, Rev GC

Option 3

1. Ground the sensor wiring shield at the sensor, if possible.

2. Ensure the sensor wiring and signal wiring shields are electrically isolated from the

3. Ground the signal wiring shield at the power supply end.

Grounded thermocouple inputs

1. Ground the sensor wiring shield at the sensor.

Section 2: Installation

April 2014

transmitter housing and other fixtures that may be grounded.

A. Sensor Wires C. 4-20 mA loop E. DCS
B. Transmitter D. Shield ground point

2. Ensure the sensor wiring and signal wiring shields are electrically isolated from the

transmitter housing and other fixtures that may be grounded.

3. Ground the signal wiring shield at the power supply end.

A. Sensor Wires C. 4-20 mA loop E. DCS
B. Transmitter D. Shield ground point

Transmitter housing

Ground the transmitter housing according to local or site electrical requirements. An internal
ground terminal is standard. An optional external ground lug assembly (Option Code G1) can
also be ordered, if needed. Ordering certain hazardous approvals automatically includes an
external ground lug (see Table A-3 on page 206).

Installation

27

Section 2: Installation

April 2014

Reference Manual

00809-0100-4021, Rev GC

28

Installation

Reference Manual

00809-0100-4021, Rev GC

Section 3: HART commissioning

Section 3 HART® commissioning

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 29

Confirm HART revision capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 29

Safety messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 30

Field communicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 30

Review configuration data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 40

Check output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 40

Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 40

Device output configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 91

Device information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 94

Measurement filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 95

Diagnostics and service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 97

Multidrop communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 98

Use with the HART Tri-Loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 99

Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 121

Trim the transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 122

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 133

April 2014

3.1 Overview

This section contains information on commissioning and tasks that should be performed on the
bench prior to installation. This section contains 3144P HART configuration information only.
The field communicator and instructions are given to perform configuration functions.

For convenience, field communicator fast key sequences are labeled “Fast Keys” for each
software function below the appropriate headings.

HART 7 Fast Keys

™

AMS

Device Manager help can be found in the AMS Device Manager on-line guides within the

AMS Device Manager system.

1, 2, 3, etc.

3.2 Confirm HART revision capability

If using HART based control or asset management systems, confirm the HART capability of
those systems prior to transmitter installation. Not all systems are capable of communicating
with HART Revision 7 protocol. This transmitter can be configured for either HART Revision 5 or
Revision 7.

Switch HART revision mode

If the HART configuration tool is not capable of communicating with HART Revision 7, the
3144P will load a generic menu with limited capability. The following procedures will switch the
HART revision mode from the generic menu.

1. Manual Setup>Device Information>Identification>Message.

HART® commissioning

a. To change to HART Revision 5, Enter: “HART5” in the Message field
b. To change to HART Revision 7, Enter: “HART7” in the Message field

29

Section 3: HART commissioning

April 2014

3.3 Safety messages

Instructions and procedures in this section may require special precautions to ensure the safety
of the personnel performing the operations. Information that raises potential safety issues is

indicated by a warning symbol ( ). Please refer to the following safety messages before
performing an operation preceded by this symbol.

Explosions may result in death or serious injury.

 Do not remove the instrument cover in explosive atmospheres when the circuit is live.
 Before connecting a Field Communicator in an explosive atmosphere, make sure the

instruments in the loop are installed in accordance with intrinsically safe or
non-incendive field wiring practices.

 Both covers must be fully engaged to meet explosion–proof requirements.

Electrical shock could cause death or serious injury. If the sensor is installed in a
high-voltage environment and a fault or installation error occurs, high voltage may be
present on transmitter leads and terminals.

 Use extreme caution when making contact with the leads and terminals.

Reference Manual

00809-0100-4021, Rev GC

3.4 Field communicator

The Menu Tree and Fast Key sequences use the following device revisions:

 Device Dashboard: Device Revision 5 and 6, DD v1

The field communicator exchanges information with the transmitter from the control room, the
instrument site, or any wiring termination point in the loop. To facilitate communication,
connect the field communicator in parallel with the transmitter (see Figure 2-11) using the loop
connection ports on the top of the field communicator. The connections are non-polarized. Do
not make connections to the NiCad recharger jack in explosive atmospheres. Before connecting
the field communicator in an explosive atmosphere, make sure the instruments in the loop are
installed according to intrinsically safe or non-incendive field wiring practices

3.4.1 Updating the HART communication software

The field communicator software may need to be updated to take advantage of the additional
features available in the latest 3144P. Perform the following steps to determine if an upgrade is
necessary.

1. Choose “Rosemount” from the list of manufacturers 5 and 6 and “3144 Temp” from the

list of models.

2. If the Field Device Rev choices include “Dev v1,” “Dev v2,” “Dev v3,” or “Dev v4” (with

any DD version), then the user will be able to connect to the device with reduced
functionality. To unlock full functionality, download and install the new DD.

30

Note

The original release of the safety-certified 3144P uses the name “3144P SIS” from the model list
and requires “Dev v2, DD v1.”

HART® commissioning

Reference Manual

00809-0100-4021, Rev GC

Note

If communication is initiated with an improved 3144P using a communicator that only has a
previous version of the transmitter device descriptors (DDs), the communicator will display the
following message:

NOTICE: Upgrade to the field communicator software to access new XMTR functions.
Continue with old description?

YES: The communicator will communicate properly with the transmitter using the existing
transmitter DDs. However, new software features of the DD in the communicator will not be
accessible.
NO: The communicator will default to a generic transmitter functionality.

If YES is selected after the transmitter is configured to utilize the new features of the improved
transmitters (such as Dual Input configuration or one of the added sensor input types–DIN Type
L or DIN Type U), the user will experience trouble communicating with the transmitter and will
be prompted to turn the communicator off. To prevent this from happening, either upgrade the
communicator to the latest DD or answer NO to the above question and default to the generic
transmitter functionality.

Section 3: HART commissioning

April 2014

HART® commissioning

31

Section 3: HART commissioning

Overview
Configure
Service Tools

Active Alerts

1. Good (only if no alerts)

2. Failed (Fix Now)

3. Advisory

4. Maintenance (Fix Soon)

Failed

1. Invalid Configuration

2. Electronics Failure

3. Calibration Error

4. Sensor Drift Alert Active

5. Sensor 1 Open

6. Sensor 2 Open

7. Sensor 1 Shorted

8. Sensor 2 Shorted

9. Terminal Temperature
Failure

Advisory

1. Calibration Error

Good

1. No Active Alerts

Maintenance

1. Hot Backup Active

2. Sensor Drift Alert Active

3. Sensor 1 Degraded

4. Sensor 2 Degraded

5. Excess EMF

6. Sensor 1 Out of Operating
Range

7. Sensor 2 Out of Operating
Range

8. Terminal Temperature Out
of Range

9. Primary Out of Limits

10. Analog Output Saturated

11. Analog Output Fixed

Overview

1. Device Status

2. Primary Variable

3. Sensor 1 Temp

4. Sensor 2 Temp

5. Analog Output Value

6. Upper Range Value

7. Lower Range Value

8. Device Information

Device Information

1. Identification

2. Revisions

3. Alarm Type and Security

Revisions

1. Universal

2. Field Device

3. Hardware

4. Software

5. DD Revision

Key

Bold = Menu Title

Underline = Method

Identification

1. Tag

2. Model

3. Electronics S/N

4. Final Assembly Number

5. Date

6. Descriptor

7. Message

8. Device Image

Alarm Type and Security

1. Alarm Direction

2. High Sat Level

3. Low Sat Level

4. High Alarm Level

5. Low Alarm Level

6. Security Switch

3144P HART Revision 5

Menu Trees - Overview

April 2014

3.4.2 Device dashboard menu tree

Figure 3-1. 3144P Device Dashboard HART 5- Overview

Reference Manual

00809-0100-4021, Rev GC

32

HART® commissioning

Reference Manual

Overview
Configure
Service Tools

Guided Setup

1. Configure Sensors

2. Calibrate Sensors

3. Configure Device

4. Configure Display

5. Config Hot Backup

6. Config Drift Alert

7. Diagnostics Suite

Manual Setup

1. Sensor 1

2. Sensor 2

3. Calculated Output

4. Diagnostics

5. Analog Output

6. Display

7. Device

8. HART

9. Security

Configure

1. Guided Setup

2. Manual Setup

Sensor 1

1. Sensor 1 Temp

2. Sensor 1 Type

3. Sensor 1 Connection

4. Engineering Units

5. 2-Wire Offset

6. Damping

7. Serial Number

8. Upper Sensor Limit

9. Lower Sensor Limit

10. SensorMatching-CVD

SensorMatching-CVD

1. RO Value

2. A Value

3. B Value

4. C Value

5. Set CVD Coefficients

6. View CVD a,b,d

Sensor 2

1. Sensor 2 Temp

2. Sensor 2 Type

3. Sensor 2 Connection

4. Engineering Units

5. 2-Wire Offset

6. Sensor 2 Damping

7. Serial Number

8. Upper Sensor Limit

9. Lower Sensor Limit

10. SensorMatching-CVD

SensorMatching-CVD

1. RO Value

2. A Value

3. B Value

4. C Value

5. Set CVD Coefficients

6. View CVD a,b,d

Calculated Output

1. Differential Temperature

2. First Good Temperature

3. Average Temperature

Diagnostics

1. Hot Backup

2. Sensor Drift Alert

3. Sensor and Process
Diagnostics

Display

1. Variables Displayed

2. Decimal Places

3. Bar Graph

Device

1. Device Information

2. Security Switch

3. Terminal Temp Units

4. Open Sensor Holdoff

5. Noise Rejection

6. Processor Reset

Analog Output

1. Primary Variable

2. Param.

3. Analog Output Value

4. Percent of Range

5. PV Configuration

HART

1. Polling Address

2. Universal

3. Change HART Rev

4. Burst Mode option

5. Burst Mode Config.

6. Variable Mapping

Differential Temperature

1. Differential Value

2. Units

3. Damping

First Good Temperature

1. First Good Value

2. Units

3. Damping

Average Temperature

1. Average Value

2. Units

3. Damping

Hot Backup

1. Hot Backup Mode

2. Primary Variable

3. Config Hot Backup

4. Reset Hot Backup

Sensor Drift Alert

1. Mode

2. Threshold

3. Damping

4. Drift Alert Eng. Units

5. Config. Drift Alert

PV Configuration

1. Primary Variable is

2. Upper Range Value

3. Lower Range Value

4. Minimum Span

Device Information

1. Tag

2. Date

3. Descriptor

4. Message

5. Final Assembly No

Noise Rejection

1. AC Power Filter

2. Transient Filter

Variable Mapping

1. Primary Variable is

2. Second Variable is

3. Third Variable is

4. Fourth Variable is

5. Re-map Variables

Security

1. Security Switch

Sensor and Process
Diagnostics

1. TC Diag Mode Snr 1

2. Drift Alert Threshold

3. Drift Alert Damping

4. Drift Alert Eng. Units

5. Configure Drift Alert

Burst Mode Config.

1. Burst Message 1

2. Message 1 Content

3. 1st and Trigger Value

4. Second Variable

5. Third Variable

6. Fourth Variable

Key

Bold = Menu Title

Underline = Method

3144P HART Revision 5

Menu Trees - Configure

00809-0100-4021, Rev GC

Figure 3-2. 3144P Device Dashboard HART 5 - Configure

Section 3: HART commissioning

April 2014

HART® commissioning

33

Section 3: HART commissioning

Overview
Configure
Service Tools

Service Tools

1. Alerts

2. Variables

3. Trends

4. Maintenance

5. Simulate

Variables

1. Variable Summary

2. Primary Variable

3. Secondary Variable

4. Third Variable

5. Fourth Variable

6. Analog Output

Trends

1. Sensor 1 Temperature

2. Sensor 2 Temperature

3. Differential Temperature

4. Average Temperature

5. Terminal Temperature

6. First Good Temperature

Primary Variable

1. Primary Variable

2. Parameter

3. PV Gauge

Second Variable

1. Second Variable

2. Parameter

3. SV Gauge

Third Variable

1. Third Variable

2. Parameter

3. TV Gauge

Fourth Variable

1. Fourth Variable

2. Parameter

3. FV Gauge

Analog Output

1. Analog Output Value

2. AO Gauge

Maintenance

1. Thermocouple Diag Snsr 1

2. Thermocouple Diag Snsr 2

3. Min/Max Tracking

4. Sensor Calibration

5. Analog Calibration

Simulate

1. Perform Loop Test

Sensor Calibration

1. Calibrate Sensors

2. Restore Factory Cal

3. Sensor 1 Lower Cal

4. Sensor 1 Upper Cal

5. Sensor 2 Lower Cal

6. Sensor 2 Upper Cal

7. Active Calibrator

Active Alerts

1. Good (only if no alerts)

2. Failed (Fix Now)

3. Advisory

4. Maintenance (Fix Soon)

Failed

1. Invalid Configuration

2. Electronics Failure

3. Calibration Error

4. Sensor Drift Alert Active

5. Sensor 1 Open

6. Sensor 2 Open

7. Sensor 1 Short

8. Sensor 2 Short

9. Terminal Temperature Failure

10. Device Malfunction

Advisory

1. Calibration Error

2. Configuration Changed

Good

1. No Active Alerts

Maintenance

1. Hot Backup Active

2. Sensor Drift Alert Active

3. Sensor 1 TC Degraded

4. Sensor 2 TC Degraded
5 Sensor 1 Excess EMF

6. Sensor 2 Excess EMF

7. Sensor 1 Out of Operating Range

8. Sensor 2 Out of Operating Range

9. Terminal Temperature Out of
Range

10. Primary Out of Limits

11. Analog Output Saturated

12. Analog Output Fixed

13. Non-Primary Variable out of
Limits

Analog Calibration

1. Analog Trim

2. Scaled Trim

Thermocouple Diag Sensor X

1. Resistance

2. Sensor X Status

3. Threshold Exceeded

4. TC Diag Config

TC Diag Config

1. TC Diag Mode Snsr X

2. Trigger Level

3. Baseline resistance

4. Reset Baseline

Min/Max Tracking

1. Min/Max Mode

2. Reset All Min/Max Values

3. Parameter 1

4. Parameter 2

5. Parameter 3

6. Parameter 4

Parameter X

1. Parameter X

2. Maximum Value

3. Minimum Value

4. Reset Parameter X

Key

Bold = Menu Title

Underline = Method

3144P HART Revision 5

Menu Trees – Service Tools

April 2014

Figure 3-3. 3144P Device Dashboard HART 5- Service Tools

Reference Manual

00809-0100-4021, Rev GC

34

HART® commissioning

Reference Manual

Overview
Configure
Service Tools

Active Alerts

1. Good (only if no alerts)

2. Failed (Fix Now)

3. Advisory

4. Maintenance (Fix Soon)

Failed

1. Invalid Configuration

2. Electronics Failure

3. Calibration Error

4. Sensor Drift Alert Active

5. Sensor 1 Open

6. Sensor 2 Open

7. Sensor 1 Shorted

8. Sensor 2 Shorted

9. Terminal Temperature
Failure

Advisory

1. Calibration Error

Good

1. No Active Alerts

Maintenance

1. Hot Backup Active

2. Sensor Drift Alert Active

3. Sensor 1 Degraded

4. Sensor 2 Degraded

5. Excess EMF

6. Sensor 1 Out of Operating
Range

7. Sensor 2 Out of Operating
Range

8. Terminal Temperature Out
of Range

9. Primary Out of Limits

10. Analog Output Saturated

11. Analog Output Fixed

Overview

1. Device Status

2. Comm Status

3. Primary Variable

4. Sensor 1 Temp

5. Sensor 1 Status

6. Sensor 2 Temp

7. Sensor 2 Status

8. Analog Output Value

9. Upper Range Value

10. Lower Range Value

11. Device Information

Device Information

1. Identification

2. Revisions

3. Alarm Type and Security

Revisions

1. Universal

2. Field Device

3. Hardware

4. Software

5. DD Revision

Key

Bold = Menu Title

Underline = Method

Identification

1. Tag

2. Long Tag

2. Model

3. Electronics S/N

4. Final Assembly Number

5. Date

6. Descriptor

7. Message

8. Device Image

Alarm Type and Security

1. Alarm Direction

2. High Sat Level

3. Low Sat Level

4. High Alarm Level

5. Low Alarm Level

6. Security Switch

7. Lock Status

00809-0100-4021, Rev GC

Figure 3-4. 3144P Device Dashboard HART 7- Overview

Section 3: HART commissioning

April 2014

HART® commissioning

35

Section 3: HART commissioning

Overview
Configure
Service Tools

Guided Setup

1. Configure Sensors

2. Calibrate Sensors

3. Configure Device

4. Configure Display

5. Config Hot Backup

6. Config Drift Alert

7. Diagnostics Suite

Manual Setup

1. Sensor 1

2. Sensor 2

3. Calculated Output

4. Diagnostics

5. Analog Output

6. Display

7. Device

8. HART

9. Security

Configure

1. Guided Setup

2. Manual Setup

Sensor 1

1. Sensor 1 Temp

2. Sensor 1 Status

3. Sensor 1 Type

4. Sensor 1 Connection

5. Engineering Units

6. 2-Wire Offset

7. Damping

8. Serial Number

9. Upper Sensor Limit

10. Lower Sensor Limit

11. SensorMatching-CVD

SensorMatching-CVD

1. RO Value

2. A Value

3. B Value

4. C Value

5. Set CVD Coefficients

6. View CVD a,b,d

Sensor 2

1. Sensor 2 Temp

2. Sensor 2 Status

3. Sensor 2 Type

4. Sensor 2 Connection

5. Engineering Units

6. 2-Wire Offset

7. Damping

8. Serial Number

9. Upper Sensor Limit

10. Lower Sensor Limit

11. SensorMatching-CVD

SensorMatching-CVD

1. RO Value

2. A Value

3. B Value

4. C Value

5. Set CVD Coefficients

6. View CVD a,b,d

Calculated Output

1. Differential Temperature

2. First Good Temperature

3. Average Temperature

Diagnostics

1. Hot Backup

2. Sensor Drift Alert

3. Sensor and Process
Diagnostics

Display

1. Variables Displayed

2. Decimal Places

3. Bar Graph

Device

1. Device Information

2. Security Switch

3. Terminal Temp Units

4. Open Sensor Holdoff

5. Noise Rejection

6. Processor Reset

Analog Output

1. Primary Variable

2. Param.

3. Analog Output Value

4. Percent of Range

5. PV Configuration

HART

1. Polling Address

2. Universal

3. Change HART Rev

4. Burst Mode option

5. Burst Mode Config.

6. Variable Mapping

Differential Temperature

1. Differential Value

2. Units

3. Damping

First Good Temperature

1. First Good Value

2. Units

3. Damping

Average Temperature

1. Average Value

2. Units

3. Damping

Hot Backup

1. Hot Backup Mode

2. Primary Variable

3. Config Hot Backup

4. Reset Hot Backup

Sensor Drift Alert

1. Mode

2. Threshold

3. Damping

4. Drift Alert Eng. Units

5. Config. Drift Alert

PV Configuration

1. Primary Variable is

2. Upper Range Value

3. Lower Range Value

4. Minimum Span

Device Information

1. Tag

2. Long Tag

2. Date

3. Descriptor

4. Message

5. Final Assembly No

Noise Rejection

1. AC Power Filter

2. Transient Filter

Variable Mapping

1. Primary Variable is

2. Second Variable is

3. Third Variable is

4. Fourth Variable is

5. Re-map Variables

Security

1. Security Switch

2. HART Lock

Sensor and Process
Diagnostics

1. TC Diag Mode Snr 1

2. Drift Alert Threshold

3. Drift Alert Damping

4. Drift Alert Eng. Units

5. Configure Drift Alert

Burst Mode Config.

1. Burst Message 1

2. Message 1 Content

3. 1st and Trigger Value

4. Second Variable

5. Third Variable

6. Fourth Variable

7. Configure Additional Messages

Key

Bold = Menu Title

Underline = Method

3144P HART Revision 7
Menu Trees - Configure

April 2014

Figure 3-5. 3144P Device Dashboard HART 7- Configure

Reference Manual

00809-0100-4021, Rev GC

36

HART® commissioning

Reference Manual

Overview
Configure
Service Tools

Service Tools

1. Alerts

2. Variables

3. Trends

4. Maintenance

5. Simulate

Variables

1. Variable Summary

2. Primary Variable

3. Secondary Variable

4. Third Variable

5. Fourth Variable

6. Analog Output

Trends

1. Sensor 1 Temperature

2. Sensor 2 Temperature

3. Differential Temperature

4. Average Temperature

5. Terminal Temperature

6. First Good Temperature

Primary Variable

1. Primary Variable

2. Parameter

3. PV Gauge

Second Variable

1. Second Variable

2. Parameter

3. SV Gauge

Third Variable

1. Third Variable

2. Parameter

3. TV Gauge

Fourth Variable

1. Fourth Variable

2. Parameter

3. FV Gauge

Analog Output

1. Analog Output Value

2. AO Gauge

Maintenance

1. Thermocouple Diag Snsr 1

2. Thermocouple Diag Snsr 2

3. Min/Max Tracking

4. Sensor Calibration

5. Analog Calibration

Simulate

1. Perform Loop Test

Sensor Calibration

1. Calibrate Sensors

2. Restore Factory Cal

3. Sensor 1 Lower Cal

4. Sensor 1 Upper Cal

5. Sensor 2 Lower Cal

6. Sensor 2 Upper Cal

7. Active Calibrator

Active Alerts

1. Good (only if no alerts)

2. Failed (Fix Now)

3. Advisory

4. Maintenance (Fix Soon)

Failed

1. Invalid Configuration

2. Electronics Failure

3. Calibration Error

4. Sensor Drift Alert Active

5. Sensor 1 Open

6. Sensor 2 Open

7. Sensor 1 Short

8. Sensor 2 Short

9. Terminal Temperature Failure

10. Device Malfunction

Advisory

1. Calibration Error

2. Configuration Changed

Good

1. No Active Alerts

Maintenance

1. Hot Backup Active

2. Sensor Drift Alert Active

3. Sensor 1 TC Degraded

4. Sensor 2 TC Degraded
5 Sensor 1 Excess EMF

6. Sensor 2 Excess EMF

7. Sensor 1 Out of Operating Range

8. Sensor 2 Out of Operating Range

9. Terminal Temperature Out of
Range

10. Primary Out of Limits

11. Analog Output Saturated

12. Analog Output Fixed

13. Simulation Active

14. Non-Primary Variable out of
Limits

Analog Calibration

1. Analog Trim

2. Scaled Trim

Thermocouple Diag Sensor X

1. Resistance

2. Sensor X Status

3. Threshold Exceeded

4. TC Diag Config

TC Diag Config

1. TC Diag Mode Snsr X

2. Trigger Level

3. Baseline resistance

4. Reset Baseline

Min/Max Tracking

1. Min/Max Mode

2. Reset All Min/Max Values

3. Parameter 1

4. Parameter 2

5. Parameter 3

6. Parameter 4

Parameter X

1. Parameter X

2. Maximum Value

3. Minimum Value

4. Reset Parameter X

Key

Bold = Menu Title

Underline = Method

3144P HART Revision 7

Menu Trees – Service Tools

00809-0100-4021, Rev GC

Figure 3-6. 3144P Device Dashboard HART 7- Service Tools

Section 3: HART commissioning

April 2014

HART® commissioning

37

Section 3: HART commissioning

April 2014

3.4.3 Device dashboard Fast Key sequences

Fast key sequences are listed below for common 3144P transmitter functions.

Note

The fast key sequences assume that “Device Revision Dev 5 (HART 5) or v6 (HART 7), DD v1” is
being used. Tab le 3 - 1 provides alphabetical function lists for all Field Communicator tasks as
well as their corresponding fast key sequences.

Table 3-1. Fast Key Sequences

Func tion HART 5 Fast Keys HART 7 Fast Keys

2-wire Offset Sensor 1 2, 2, 1, 5 2, 2, 1, 6

2-wire Offset Sensor 2

Alarm Values

Analog Calibration

Analog Output

Average Temperature Setup

Burst Mode

Comm Status

Configure additional messages

Configure Hot Backup

Date

Descriptor

Device Information

Differential Temperature Setup

Filter 50/60 Hz

Find Device

First Good Temperature Setup

Hardware Revision

HART Lock

Intermittent Sensor Detect

Lock Status

Long Tag

Loop Test

LRV (Lower Range Value)

Message

Open Sensor Holdoff

Percent Range

2, 2, 2, 5 2, 2, 2, 6

2, 2, 5, 6 2, 2, 5, 6

3, 4, 5 3, 4, 5

2, 2, 5 2, 2, 5

2, 2, 3, 3 2, 2, 3, 3

N/A

N/A

N/A

2, 2, 4, 1, 3

2, 2, 7, 1, 2

2, 2, 7, 1, 3

2, 2, 7, 1

2, 2, 3, 1

2, 2, 7, 5, 1

N/A

2, 2, 3, 2

1, 8, 2, 3

N/A

2, 2, 7, 5, 2

N/A

N/A

3, 5, 1 3, 5, 1

2, 2, 5, 5, 3 2, 2, 5, 5, 3

2, 2, 7, 1, 4 2, 2, 7, 1, 5

2, 2, 7, 4 2, 2, 7, 4

2, 2, 5, 4

2, 2, 8, 4

1, 2

2, 2, 8, 4, 7

2, 2, 4, 1, 3

2, 2, 7, 1, 3

2, 2, 7, 1, 4

2, 2, 7, 1

2, 2, 3, 1

2, 2, 7, 5, 1

3, 4, 6, 2

2, 2, 3, 2

1, 11, 2, 3

2, 2, 9, 2

2, 2, 7, 5, 2

1, 11, 3, 7

2, 2, 7, 2

2, 2, 5, 4

Reference Manual

00809-0100-4021, Rev GC

38

HART® commissioning

Reference Manual

00809-0100-4021, Rev GC

Table 3-1. Fast Key Sequences

Section 3: HART commissioning

April 2014

Function HART 5 Fast Keys HART 7 Fast Keys

Sensor 1 Configuration

Sensor 1 Serial Number

Sensor 1 Setup

Sensor 1 Status

Sensor 1 Type

Sensor 1 Unit

Sensor 2 Configuration

Sensor 2 Serial Number

Sensor 2 Setup

Sensor 2 Status

Sensor 2 Type

Sensor 2 Unit

Sensor Drift Alert

Simulate Device Variables

Software Revision

Ta g

Terminal Temperat ure Unit s

URV (Upper Range Value)

Variable Mapping

Thermocouple Diagnostic

Min/Max Tracking

2, 2, 1 2, 2, 2

2, 2, 1, 7 2, 2, 1, 8

2, 2, 1 2, 2, 1

N/A

2, 2, 1, 2

2, 2, 1, 4

2, 2, 2

2, 2, 2, 7

2, 2, 2

N/A

2, 2, 2, 2

2, 2, 2, 4

2, 2, 4, 2

N/A

1, 8, 2, 4 1, 11, 2, 4

2, 2, 7, 1, 1 2, 2, 7, 1, 1

2, 2, 7, 3 2, 2, 7, 3

2, 2, 5, 5, 2 2, 2, 5, 5, 2

2, 2, 8, 5 2, 2, 8, 5

2, 1, 7, 1 2, 1, 7, 1

2, 1, 7, 2 2, 1, 7, 2

2, 2, 1, 2

2, 2, 1, 3

2, 2, 1, 5

2, 2, 2

2, 2, 2, 8

2, 2, 2

2, 2, 2, 2

2, 2, 2, 3

2, 2, 2, 5

2, 2, 4, 2

3, 5, 2

HART® commissioning

39

Section 3: HART commissioning

April 2014

3.5 Review configuration data

Before operating the 3144P in an actual installation, review all of the factory-set configuration
data to ensure that it reflects the current application.

3.5.1 Review

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HART 5 Fast Keys

HART 7 Fast keys

1, 4

2, 2

Field communicator

Review the transmitter configuration parameters set at the factory to ensure accuracy and
compatibility with the particular application. After activating the Review function, scroll through
the data list and check each variable. If changes to the transmitter configuration data are
necessary, refer to “Configuration” below.

3.6 Check output

Before performing other transmitter online operations, review the configuration of the 3144P
digital output parameters to ensure that the transmitter is operating properly.

3.6.1 Analog output

HART 5 Fast Keys

HART 7 Fast Keys

Field communicator

2, 2, 5

2, 2, 5

The 3144P process variables provide the transmitter output. The PROCESS VARIABLE menu
displays the process variables, including sensed temperature, percent range, and analog output.
These process variables are continuously updated. The primary variable is 4–20 mA analog
signal.

3.7 Configuration

The 3144P must have certain basic variables configured to operate. In many cases, these
variables are pre-configured at the factory. Configuration may be required if the configuration
variables need revision.

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3.7.1 Variable mapping

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HART 5 Fast Keys

HART 7 Fast Keys

2, 2, 8, 5

2, 2, 8, 5

Field communicator

The Variable Mapping menu displays the sequence of the process variables. Select 5 Variable
Re-Map to change this configuration. The 3144P single sensor input configuration screens allow

selection of the primary variable (PV) and the secondary variable (SV). When the Select PV
screen appears Snsr 1 or terminal temperature must be selected.

The 3144P dual-sensor option configuration screens allow selection of the primary variable
(PV), secondary variable (SV), tertiary variable (TV), and quaternary variable (QV). Variable
choices are Sensor 1, Sensor 2, Differential Temperature, Average Temperature, First-Good
Temperatur e, Terminal Temperature, and Not Used. The primary variable is the 4–20 mA analog
signal.

3.7.2 Sensor configuration

HART 5 Fast Keys

HART 7 Fast Keys

Field communicator

2, 1, 1

2, 1, 1

Sensor configuration contains information for updating the sensor type, connections, units, and
damping.

3.7.3 Change type and connections

HART 5 Fast Keys

HART 7 Fast Keys

The Connections command allows the user to select the sensor type and the number of sensor
wires to be connected from the following list:

 2-, 3-, or 4-wire Pt 100, Pt 200, Pt 500, Pt 1000

(platinum) RTDs ( = 0.00385 //°C)

 2-, 3-, or 4-wire Pt 100, Pt 200 (platinum) RTDs ( = 0.003916 //°C)

 2-, 3-, or 4-wire Ni 120 (nickel) RTDs

 2-, 3-, or 4-wire Cu 10 (copper) RTDs

 IEC/NIST/DIN Type B, E, J, K, R, S, T thermocouples

 DIN type L, U thermocouples

 ASTM Type W5Re/W26Re thermocouple

 GOST Type L thermocouples

Sensor 1: 2, 2, 1
Sensor 2: 2, 2, 2

Sensor 1: 2, 2, 1
Sensor 2: 2, 2, 2

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 –10 to 100 millivolts

 2-, 3-, or 4-wire 0 to 2000 ohms

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Contact an Emerson

®

Process Management representative for information on temperature

sensors, thermowells, and accessory mounting hardware that is available through Emerson.

3.7.4 Output units

HART 5 Fast Keys

HART 7 Fast Keys

The Snsr 1 Unit and Snsr 2 Unit commands set the desired primary variable units. The transmitter
output can be set to one of the following engineering units:

 Degrees Celsius

 Degrees Fahrenheit

 Degrees Rankine

 Kelvin

 Ohms

 Millivolts

Sensor 1: 2, 2, 1, 4
Sensor 2: 2, 2, 2, 4

Sensor 1: 2, 2, 1, 5
Sensor 2: 2, 2, 2, 5

3.7.5 Sensor 1 serial number

HART 5 Fast Keys

2, 2, 1, 7

HART 7 Fast Keys

2, 2, 1, 8

The serial number of the attached sensor can be listed in the Sensor 1 S/N variable. It is useful for
identifying sensors and tracking sensor calibration information.

3.7.6 Sensor 2 serial number

HART 5 Fast Keys

HART 7 Fast Keys

The serial number of a second sensor can be listed in the Sensor 2 S/N variable.

2, 2, 2, 7

2, 2, 2, 8

3.7.7 2-wire RTD offset

HART 5 Fast Keys

HART 7 Fast Keys

The 2-wire Offset command allows the measured lead wire resistance to be input, which results
in the transmitter adjusting its temperature measurement to correct the error caused by this
resistance. Because of a lack of lead wire compensation within the RTD, temperature
measurements made with a 2-wire RTD are often inaccurate.

Sensor 1: 2, 2, 1, 5
Sensor 2: 2, 2, 2, 5

Sensor 1: 2, 2, 1, 6
Sensor 2: 2, 2, 2, 6

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3.7.8 Terminal (body) temperature

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HART 5 Fast Keys

HART 7 Fast Keys

The Terminal Temp command sets the temperature units to indicate the temperature at the
transmitter terminals.

2, 2, 7, 3

2, 2, 7, 3

3.7.9 Dual-sensor configuration

HART 5 Fast Keys

HART 7 Fast Keys

Dual-sensor configuration sets the functions that can be used with a dual-sensor configured
transmitter, including Differential Temperature, Average Temperature, First Good Temperature.

Differential temperature

HART 5 Fast Keys

HART 7 Fast Keys

Field communicator

The Rosemount 3144P configured for a dual-sensor can accept any two inputs then display the
differential temperature between them. Use the following procedure with Traditional Fast Keys
to configure the transmitter to measure differential temperature:

2, 2, 3

2, 2, 3

2, 2, 3, 1

2, 2, 3, 1

Note

This procedure reports the differential temperature as the primary variable analog signal. If this
is not needed, assign differential temperature to the secondary, tertiary, or quaternary variable.

Note

The transmitter determines the differential temperature by subtracting the reading of Sensor 2
from Sensor 1 (S1 – S2). Ensure this order of subtraction is consistent with the desired reading
for the application. Refer to Figure 2-3 on page 14, or inside the transmitter terminal-side cover
for sensor wiring diagrams.

If using an LCD display for local indication, configure the meter to read the appropriate variables
by using “LCD display options” on page 94.

Average temperature

HART 5 Fast Keys

HART 7 Fast Keys

2, 2, 3, 3

2, 2, 3, 3

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Field communicator

The 3144P transmitter configured for dual-sensors can output and display the average
temperature of any two inputs. Use the following procedure with Traditional Fast Keys to
configure the transmitter to measure the average temperature:

Configure Sensor 1 and Sensor 2 appropriately. Select 1 Device Setup, 3 Configuration, 2 Sensor
Configuration, 1 Change Type and Conn. to set the sensor type and number of wires for Sensor 1.
Repeat for Sensor 2.

Note

This procedure configures the average temperature as the primary variable analog signal. If this
is not needed, assign the average temperature to the secondary, tertiary, or quaternary variable.

If using an LCD display, configure it to read the appropriate variables using “LCD display options”

on page 94.

Note

If Sensor 1 and/or Sensor 2 should fail while PV is configured for average temperature and the
Hot Backup
recommended when PV is Sensor Average, that the Hot Backup feature be enabled when
dual-element sensors are used, or when two temperature measurements are taken from the
same point in the process. If a sensor failure occurs when the Hot Backup feature is enabled,
while PV is Sensor Average, three scenarios could result:

 If Sensor 1 fails, the average will only be reading from Sensor 2, the working sensor

 If Sensor 2 fails, the average will only be reading from Sensor 1, the working sensor

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feature is not enabled, the transmitter will go into alarm. For this reason, it is

 If both sensors fail simultaneously, the transmitter will go into alarm and the status

available (via HART) states that both Sensor 1 and Sensor 2 have failed

In the first two scenarios, the 4-20 mA signal is not disrupted and the status available to the
control system (via HART) specifies which sensor has failed.

First good configuration

HART 5 Fast Keys

HART 7 Fast Keys

2, 2, 3, 2

2, 2, 3, 2

Field communicator

The First Good device variable is useful for applications where dual-sensors (or a single dual
element sensor) are used in a single process. The first good variable will report the Sensor 1
value, unless Sensor 1 fails. When Sensor 1 fails, the Sensor 2 value will be reported as the first
good variable. Once the first good variable has switched to Sensor 2, it will not revert back to
Sensor 1 until a master reset occurs or “Suspend Non-PV alarms” is disabled. When the PV is
mapped to first good variable and either Sensor 1 or Sensor 2 fails, the analog output will go to
the alarm level, but the digital PV value read through the HART interface will still report the
proper first good sensor value.

If the user does not want the transmitter to go into analog output alarm when the PV is mapped
to first good and Sensor 1 fails, enable “Suspend Non-PV Alarm” mode. This combination
prevents the analog output from going to the alarm level unless BOTH sensors fail.

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Hot Backup feature configuration

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HART 5 Fast Keys

HART 7 Fast Keys

2, 2, 4, 1, 3

2, 2, 4, 1, 3

Field communicator

The Config Hot BU command configures the transmitter to automatically use Sensor 2 as the
primary sensor if Sensor 1 fails. With the Hot Backup feature enabled, the primary variable (PV)
must either be First Good or Sensor Average. See “Average temperature” on page 43 for details
on using the Hot Backup feature when PV is Sensor Average. Sensors 1 or 2 can be mapped as
the secondary variable (SV), tertiary variable (TV), or quaternary variable (QV). In the event of a
primary variable (Sensor 1) failure, the transmitter enters the Hot Backup feature mode and
Sensor 2 becomes the PV. The 4–20 mA signal is not disrupted, and a status is available to the
control system through HART that Sensor 1 has failed. An LCD display, if attached, displays the
failed sensor status.

While configured to the Hot Backup feature, if Sensor 2 fails but Sensor 1 is still operating
properly, the transmitter continues to report the PV 4–20 mA analog output signal, while a
status is available to the control system through HART that Sensor 2 has failed. In the Hot
Backup feature mode, the transmitter will not revert back to Sensor 1 to control the 4–20 mA
analog output, until the Hot Backup feature mode is reset by either re-enabling through HART
or by briefly powering down the transmitter.

For information on using the Hot Backup feature in conjunction with the HART Tri-Loop

“Use with the HART Tri-Loop” on page 99.

™

see

Problem description: The unexpected failure of a critical temperature measurement can cause
safety issues, environmental or regulatory concerns, and process shutdowns.

Our solution: The Hot Backup feature allows the transmitter to automatically switch the
transmitter input from the primary sensor to the secondary sensor should the primary sensor
fail. This prevents a process disruption due to the failure of the primary sensor. A maintenance
alert is also generated to notify operators that a sensor has failed and the Hot Backup feature is
active.

How it works: Two sensors are wired to a dual-input transmitter. The 2 sensors are measured in
alternating fashion, so when sensor 1 failure is detected, the transmitter can immediately
switch the output to reflect the sensor 2 value. The switch is automatic with no disruption to the
analog output. The transmitter sends a digital alert to inform the users that the Hot Backup
feature is active and the primary sensor needs investigation.

Take away: “The Hot Backup feature prevents primary sensor failure from disrupting process
control.”

Target applications: Redundant measurements, critical measurements, trouble spots.

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Configure Hot Backup in guided setup

Enable Hot Backup in guided setup: Fast Keys 2-1-5

1. From the Home Screen, choose 2 Configure.

2. Choose 1 Guided Setup.

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3. Choose 5 Config Hot Backup.

4. When prompted, choose 1 Yes to enable Hot Backup. To exit, select 2 No.

5. When prompted, choose which variable you would like as your primary variable (PV)

and press ENTER. With Hot Backup enabled, the PV must either be First Good
Tem pe ra tu re or Average Temperature.

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Disable Hot Backup in guided setup: Fast Keys 2-1-5

1. From the Home Screen, choose 2 Configure.

2. Choose 1 Guided Setup.

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3. Choose 5 Config Hot Backup.

4. When prompted, choose 1 Yes to disable Hot Backup. To reconfigure Hot Backup,
choose 2 No.

5. When prompted, choose which variable you would like as your primary variable (PV)
and press ENTER. With Hot Backup disabled, the PV may be Sensor 1 Temperature,

Sensor 2 Temperature, Differential Temperature, Average Temperature, or First Good
Tem pe ra tu re .

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Configure Hot Backup in manual set up

Enabling Hot Backup in manual setup: Fast Keys 2-2-4-1-3

1. From the Home Screen, choose 2 Configure.

2. Choose 2 Manual Setup.

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3. Choose 4 Diagnostics.

4. Choose 1 Hot Backup.

5. Select 3 Config Hot Backup.

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6. When prompted, choose 1 Yes to enable Hot Backup. To exit, choose 2 No.

7. When prompted, choose which variable you would like as your primary variable (PV)

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and choose ENTER. With Hot Backup enabled, the PV must either be First Good
Tem pe ra tu re or Average Temperature.

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Disabling Hot Backup in manual setup: Fast Keys 2-2-4-1-3

1. From the Home Screen, choose 2 Configure.

2. Choose 2 Manual Setup.

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3. Choose 4 Diagnostics.

4. Choose 1 Hot Backup.

5. Choose 3 Config Hot Backup.

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6. When prompted, choose 1 Yes to disable Hot Backup. To reconfigure Hot Backup,

7. When prompted, choose which variable you would like as your primary variable (PV)

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choose 2 No.

and choose ENTER. With Hot Backup disabled, the PV may be Sensor 1 Temperature,

Sensor 2 Temperature, Differential Temperature, Average Temperature, or First Good
Tem pe ra tu re .

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To verify that Hot Backup is enabled: Fast Keys 2-2-4-1

1. From the Home Screen, choose 2 Configure.

2. Choose 2 Manual Setup.

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3. Choose 4 Diagnostics.

4. Choose 1 Hot Backup.

5. You will see this screen. Under 1 Mode, it will say either Enabled or Disabled, as well as
indicate what your primary variable is.

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Alerts configuration for Hot Backup

Alerts for Hot Backup when configured with first good temperature

Primary sensor failure

Communicator message

If your primary sensor fails, there will be a seamless transition where your second sensor
immediately takes over the process. The transmitter will report a Failed device status, indicating
Sensor 1 is open and Hot Backup is active. This is shown in the 475 Field Communicator in the
Overview section.

Choose 1 Device Status to view the active alerts.

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After the sensor has been repaired or replaced, the 475 Field Communicator will display a
Maintenance Device Status, indicating Hot Backup is still active. This is shown in the 475 Field
Communicator in the Overview section.

Choose 1 Device Status to view the active alerts. Hot Backup is still active even though sensor 1
is repaired.

It is recommended Hot Backup be reset immediately after repairing or replacing the affected
sensor. See “Reset Hot Backup: Fast Keys 2-2-4-1-4” on page 78. After resetting Hot Backup, the
475 Field Communicator will display an Advisory Device Status, indicating that the configuration
has changed. This is shown in the Overview section. To clear this advisory, clear the configuration
changed flag, as shown below.

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1. Choose 1 Device Status to view the active alerts.

2. Choose 2 A: Configuration Changed.

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3. Choose 2 Clear Config Changed Flag.

LCD display message

The LCD display on the transmitter will display a message HOT BU SNSR 1 FAIL as well as the
output of the secondary sensor that has taken over the process.

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After the sensor has been repaired or replaced, the LCD display on the transmitter will display a
message WARN HOT BU as well as the output of the secondary sensor that has taken over the
process.

It is recommended that Hot Backup be reset immediately after repairing or replacing the
affected sensor. See “Reset Hot Backup: Fast Keys 2-2-4-1-4” on page 78. After repairing or
replacing the bad sensor, the LCD display on the transmitter will now display the value of Sensor

1.

DeltaV

Alarms will show up on the bottom toolbar, as shown below:

®

message

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To view the alarm, simply click on the device on the toolbar. A faceplate with further information
on the active alarms will appear. It will show an ADVISE Sensor Summary, a FAILED Sensor 1 Open,
and a MAINTENANCE Hot Backup Active.

Note

For all of these alarms to appear in DeltaV, all alarms in DeltaV must be configured to WARNING
status.

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After the sensor has been repaired or replaced, the Faceplate window in DeltaV will display boxes
next to each alarm that has been addressed. You must acknowledge each alarm to clear it by
checking the ACK box to the left of the alarm.

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It is recommended Hot Backup be reset immediately after repairing or replacing the affected
sensor. See “Reset Hot Backup: Fast Keys 2-2-4-1-4” on page 78. After resetting Hot Backup, the
DeltaV Faceplate window indicates the alarms ADVISE Configuration Change and MAINTENANCE

Hot Backup Active. You must acknowledge these alarms in order to clear them by checking the
ACK boxes next to each alarm.

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Yokogawa’s Cent um PRM/DTM

When the primary sensor fails, alarms will be displayed in the PRM (Plant Resource Manager) via
yellow circles next to the device, as shown below. These yellow circles indicate that something in
your process needs attention. To investigate this further, right click on the affected device, and
choose DTM Works… This will open the DTM (Device Task Manager).

™

messages

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In the DTM, the device status will indicate a Failed status in the Process Variable Overview section,
shown below.

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To investigate why the device displays a Failed status, choose Troubleshoot in the red device
status box. Another screen will display the active alerts indicating FAILED Sensor 1 Open, and
MAINTENANCE Hot Backup Active, as shown below.

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After the sensor has been repaired or replaced, the device status in the Process Variable Overview
section of the DTM will change from Failed to Maintenance.

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Investigate this Maintenance alert by choosing Troubleshoot in the yellow device status box.
Another screen will display the active alerts, indicating MAINTENANCE Hot Backup Active, as
shown below.

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It is recommended that Hot Backup be reset immediately after repairing or replacing the
affected sensor. See “Reset Hot Backup: Fast Keys 2-2-4-1-4” on page 78 with a 475 handheld
communicator or reset it directly in the DTM by going to the Diagnostics tab of the Manual Setup
section and choosing Reset Hot Backup, as shown below.

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After resetting Hot Backup, the device status in the Process Variable Overview section of the DTM
will change from Maintenance to Advisory, as shown below.

Investigate this advisory alert by clicking Investigate in the blue device status box. Another
screen will display the active alerts, indicating ADVISORY Configuration Changed, as shown below.
To clear this advisory, simply choose Clear Config Changed Flag and follow the steps.

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When all of the alerts for this device have been addressed, the yellow circles in the PRM change
to green, indicating that everything is good.

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Secondary sensor failure

Communicator message

If Hot Backup is enabled and your secondary sensor fails, your transmitter will report a Failed
device status, as shown below on the 475 Field Communicator in the Overview section.

Choose 1 Device Status to view the active alerts.

After the sensor has been repaired or replaced, the 475 Field Communicator will display a Good
Device Status, indicating the problem is solved.

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LCD display message

The LCD display on the transmitter will display a message WARN SNSR 2 FAIL. It will also continue
to display the output of your primary sensor:

After the sensor has been repaired or replaced, the LCD display warning message will clear and
display the output of the primary variable.

DeltaV message

Alarms will show up on the bottom toolbar, as shown below:

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To view the alarm, simply click on the device on the toolbar. A Faceplate with further
information on the active alarms will appear. It will show an ADVISE Sensor Summary, a FAIL ED
Sensor 2 Open, and a MAINTENANCE Hot Backup Active.

Note

For all of these alarms to appear in DeltaV, all alarms in DeltaV must be configured to WARNING
status.

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After the sensor has been repaired or replaced, the faceplate in DeltaV will display boxes next to
the alarms, shown below. You must acknowledge these alarms by clicking on the boxes in order
to clear them.

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Yokogawa’s Centum PRM/DTM messages

When the secondary sensor fails, alarms will be displayed in the PRM (Plant Resource Manager)
via yellow circles next to the device, as shown below. These yellow circles indicate that
something in your process needs attention. To investigate this further, right click on the affected
device, and choose DTM Works… This will open the DTM (Device Task Manager).

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In the DTM, the device status will indicate a Failed status in the Process Variable Overview section,
shown below.

To investigate why the device displays a Failed status, choose Troubleshoot in the red device
status box. Another screen will display the active alerts indicating FAILED Sensor 2 Open, as
shown below.

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After the sensor has been repaired or replaced, the alerts will clear, and the yellow circles in the
PRM change to green, indicating that everything is good. Hot Backup does not need to be reset
in this case.

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Alerts for Hot Backup when configured with average temperature

Primary sensor failure

Communicator message

If your primary sensor fails, there will be a seamless transition where the second sensor
immediately takes over the process. The transmitter will report a failed status, indicating Sensor
1 is open and Hot Backup is active. This alert is shown on the 475 Field Communicator in the
Overview section.

Choose 1 Device Status to view the active alerts.

After the sensor has been repaired or replaced, the 475 Field Communicator will display a
Maintenance Device Status, indicating Hot Backup is still active. This is shown on the 475 Field
Communicator in the Overview section.

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Hot Backup is still active even though sensor 1 is repaired. Hot Backup is still active even though
sensor 1 is repaired.

It is recommended that Hot Backup be reset immediately after repairing or replacing the
affected sensor. See“Reset Hot Backup: Fast Keys 2-2-4-1-4” on page 78. After resetting Hot
Backup, the 475 Field Communicator will display an Advisory Device Status, indicating that the
configuration has changed. This is shown in the Overview section. To clear this advisory, simply
clear the configuration changed flag, as shown below.

1. Choose 1 Device Status to view the active alerts.

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2. Choose 2 A: Configuration Changed.

3. Choose 2 Clear Config Changed Flag.

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LCD display message

The LCD display on the transmitter will display a message HOT BU SNSR 1 FAIL; WARN AV DEGRA as
well as the output of the average temperature. Because Sensor 1 has failed, this average
temperature output is the value of Sensor 2 only.

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After the sensor has been repaired or replaced, the LCD display on the transmitter will display a
message WARN HOT BU, reminding you that Hot Backup is still active, as well as the normal
output of the average temperature. The warning message will clear after you have reset Hot
Backup. It is recommended that Hot Backup be reset immediately after repairing or replacing
the damaged sensor. See “Reset Hot Backup: Fast Keys 2-2-4-1-4” on page 78.

DeltaV message

Alarms will show up on the bottom toolbar, as shown below:

To view the alarm, simply click on the device on the toolbar. A faceplate with further information
on the active alarms will appear. It will show an ADVISE Sensor Summary, a FAILED Sensor 1 Open,
and a MAINTENANCE Hot Backup Active.

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Note

For all of these alarms to appear in DeltaV, all alarms in DeltaV must be configured to WARNING
status.

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After the sensor has been repaired or replaced, the faceplate window in DeltaV will display boxes
next to each alarm that has been addressed. You must acknowledge each alarm to clear it by
checking the ACK box to the left of the alarm.

It is recommended that Hot Backup be reset immediately after repairing or replacing the
affected sensor. See “Reset Hot Backup: Fast Keys 2-2-4-1-4” on page 78. After resetting Hot
Backup, the DeltaV Faceplate window indicates the alarms ADVISE Configuration Change and

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MAINTENANCE Hot Backup Active. You must acknowledge these alarms in order to clear them by
checking the ACK boxes next to each alarm.

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Yokogawa’s Centum PRM/DTM messages

When the primary sensor fails, alarms will be displayed in the PRM (Plant Resource Manager) via
yellow circles next to the device, as shown below. These yellow circles indicate that something in
your process needs attention. To investigate this further, right click on the affected device, and
choose DTM Works… This will open the DTM (Device Task Manager).

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In the DTM, the device status will indicate a Failed status in the Process Variable Overview section,
shown below.

To investigate why the device displays a Failed status, choose Troubleshoot in the red device
status box. Another screen will display the active alerts indicating FAILED Sensor 1 Open, and
MAINTENANCE Hot Backup Active, as shown below.

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After the sensor has been repaired or replaced, the device status in the Process Variable
Overview section of the DTM will change from Failed to Maintenance.

Investigate this Maintenance alert by choosing Troubleshoot in the yellow device status box.
Another screen will display the active alerts, indicating MAINTENANCE Hot Backup Active, as
shown below.

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It is recommended that Hot Backup be reset immediately after repairing or replacing the
affected sensor. See “Reset Hot Backup: Fast Keys 2-2-4-1-4” on page 78 with a 475 handheld
communicator or reset it directly in the DTM by going to the Diagnostics tab of the Manual Setup
section and choosing Reset Hot Backup, as shown below.

After resetting Hot Backup, the device status in the Process Variable Overview section of the
DTM will change from Maintenance to Advisory, as shown below.

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Investigate this advisory alert by choosing Investigate in the blue device status box. Another
screen will display the active alerts, indicating ADVISORY Configuration Changed, as shown below.
To clear this advisory, simply choose Clear Config Changed Flag and follow the steps.

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When all of the alerts for this device have been addressed, the yellow circles in the PRM change
to green, indicating that everything is good.

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Secondary sensor failure

Communicator message

If Hot Backup is enabled and your secondary sensor fails, your transmitter will report a Failed
device status. The alerts show that Sensor 2 is open, but Hot Backup is not active, as shown
below on the 475 Field Communicator in the Overview section:

Choose 1 Device Status to view the active alerts.

After the sensor has been repaired or replaced, the 475 Field Communicator will display a Good
Device Status, indicating the problem is solved.

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LCD display message

The LCD display on the transmitter will display a message WARN SNSR 2 FAIL; WARN AV DEGRA as
well as the output of the average temperature. Because Sensor 2 has failed, this average
temperature output is the value of Sensor 1 only.

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After the sensor has been repaired or replaced, the LCD display warning message will clear and
display the output of the primary variable.

DeltaV message

Alarms will show up on the bottom toolbar, as shown below:

To view the alarm, simply click on the device on the toolbar. A faceplate with further information
on the active alarms will appear. It will show an ADVISE Sensor Summary, and a FAILED Sensor 2
Open.

Note

For all of these alarms to appear in DeltaV, all alarms in DeltaV must be configured to WARNING
status.

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After the sensor has been repaired or replaced, the faceplate in DeltaV will display boxes next to
the alarms, shown below. You must acknowledge these alarms by clicking on the boxes in order
to clear them.

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Yokogawa’s Centum PRM/DTM messages

When the secondary sensor fails, alarms will be displayed in the PRM (Plant Resource Manager)
via yellow circles next to the device, as shown below. These yellow circles indicate that
something in your process needs attention. To investigate this further, right click on the affected
device, and choose DTM Works… This will open the DTM (Device Task Manager).

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In the DTM, the device status will indicate a Failed status in the Process Variable Overview section,
shown below.

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To investigate why the device displays a Failed status, choose Troubleshoot in the red device
status box. Another screen will display the active alerts indicating FAILED Sensor 2 Open, as
shown below.

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After the sensor has been repaired or replaced, the alerts will clear, and the yellow circles in the
PRM change to green, indicating that everything is good. Hot Backup does not need to be reset
in this case.

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Reset Hot Backup: Fast Keys 2-2-4-1-4

When the Primary Variable is set to First Good Temperature, the secondary sensor will remain
on the 4-20 mA output until Hot Backup is reset, even after Sensor 1 has been replaced. Because
of this, it is recommended to reset Hot Backup immediately after Sensor 1 is replaced. If Hot
Backup is not reset and Sensor 2 fails, the transmitter will go into alarm. It will not transfer back
to Sensor 1 even if sensor one has been repaired.

When the Primary Variable is set to Average Temperature, it is also recommended to reset Hot
Backup immediately after Sensor 1 is replaced in order to clear the Hot Backup Active alarm.
However, with the PV set to Average Temperature, if Hot Backup is not reset and Sensor 2 fails,
the transmitter will simply switch to output the average of only Sensor 1.

Steps to reset Hot Backup are shown below.

1. From the Home Screen, choose 2 Configure.

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2. Choose 2 Manual Setup.

3. Choose 4 Diagnostics.

4. Choose 1 Hot Backup.

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5. Choose 4 Reset Hot Backup.

6. Hot Backup has been reset. Choose OK.

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Sensor drift alert configuration

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HART 5 Fast Keys

HART 7 Fast Keys

2, 2, 4, 2

2, 2, 4, 2

Field communicator

The Sensor Drift Alert command allows the transmitter to set a warning flag (through HART), or
go into analog alarm when the temperature difference between Sensor 1 and Sensor 2 exceeds
a user-defined limit. This feature is useful when measuring the same process temperature with
two sensors, ideally when using a dual-element sensor. When Sensor Drift Alert mode is
enabled, the user sets the maximum allowable difference, in engineering units, between Sensor
1 and Sensor 2. If this maximum difference is exceeded, a Sensor Drift Alert warning flag will be
set.

When configuring the transmitter for Sensor Drift Alert, the user also has the option of
specifying that the analog output of the transmitter go into alarm when sensor drifting is
detected.

Note

Using dual sensor configuration in the 3144P, the temperature transmitter supports the
configuration and simultaneous use of the Hot Backup
sensor fails, the transmitter switches output to use the remaining good sensor. Should the
difference between the two sensor readings exceed the configured threshold, the AO will go to
alarm indicating the sensor drift condition. The combination of Sensor Drift Alert and the Hot
Backup

®

feature improves sensor diagnostic coverage while maintaining a high level of

availability. Refer to the 3144P FMEDA report for the impact on safety.

®

feature and Sensor Drift Alert. If one

Problem description: Sensors often drift before they fail. This causes issues because during the
drift period, the sensor is not reporting as accurate measurement. In control loops, and
especially safety loops this can lead to improper process control and potential safety hazards.

Our solution: The Sensor Drift Alert continuously monitors two sensor readings to detect a
drifting sensor. The diagnostic monitors the difference between the two sensors, and when the
difference becomes greater than a value entered by the user, the transmitter sends an alert to
indicate a sensor drift condition.

How it works: Two sensors are connected to a dual-input transmitter where the difference in
sensor readings is continuously being measured. A threshold is set by the user to determine
when an excessive drift (i.e. a significant delta) occurs between the two sensors. The
temperature delta between the two sensors is calculated by taking the absolute value of the
difference between sensor 1 and sensor 2. The user configures the transmitter to send a digital
alert or analog alarm when the alert has been triggered. The Sensor Drift Alert does not indicate
which sensor is failing. Rather the diagnostic provides an indication of a sensor drifting. The user
should view the individual sensor output trends on the host to determine which sensor is
drifting.

Take away: “Sensor Drift Alert detects a degrading sensor.”

Target applications: Redundant measurements, critical measurements, severe applications.

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Note

Enabling Drift Alert Option Warning only will set a flag (through HART) whenever the maximum
acceptable difference between Sensor 1 and Sensor 2 has been exceeded. For the transmitter’s
analog signal to go into alarm when Drift Alert is detected, select Alarm in Alarm switch (HART) .

Configure Sensor Drift in guided setup

Enable Sensor Drift Alert in guided setup: Fast Keys 2-1-6

1. From the Home Screen, select 2 Configure.

2. Select 1 Guided Setup.

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3. Select 6 Config Drift Alert.

4. Select 1 Enable to activate Sensor Drift Alert and press ENTER.

5. When prompted, select whether you want Sensor Drift Alert to put the transmitter into

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“Alarm” or “Warning”, and press ENTER. Enabling Drift Alert Option Warning only will
set a flag (through HART) whenever the maximum acceptable difference between
Sensor 1 and Sensor 2 has been exceeded. Enabling Drift Alert Option Alarm will send
the transmitter's analog signal into alarm when Drift Alert is detected.

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6. Select the engineering units you would like to use and press ENTER. Choose from degC,
degF, degR, Kelvin, mV, Ohms.

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7. Enter the Sensor Drift Alert threshold value and press ENTER. This is a digital value that
triggers the Drift Alert feature. When this limit is exceeded, the transmitter will go into
alarm or generate a warning (depending on the alert mode chosen previously).

8. Enter a damping value between 0 and 32 and press ENTER. This damping value is
additional damping applied to the result of (S1-S2) after each sensor's individual
damping value has already been applied.

9. Configuration is complete. Press OK.

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Disable Sensor Drift Alert in guided setup: Fast Keys 2-1-6

1. From the Home Screen, select 2 Configure.

2. Select 1 Guided Setup.

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3. Select 6 Config Drift Alert.

4. Select 2 Disable to disable Sensor Drift alert and press ENTER.

5. Sensor Drift Alert has been disabled. Press OK.

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Configure Sensor Drift in manual setup

Enable Sensor Drift Alert in manual setup: Fast Keys 2-2-4-2-5

1. From the Home Screen, select 2 Configure.

2. Select 2 Manual Setup.

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3. Select 4 Diagnostics.

4. Select 2 Sensor Drift Alert.

5. Select 5 Config Drift Alert.

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6. Select 1 Enable to activate Sensor Drift Alert and press ENTER.

7. When prompted, select whether you want Sensor Drift Alert to put the transmitter into

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“Alarm” or “Warning”, and press ENTER. Enabling Drift Alert Option Warning only will
set a flag (through HART) whenever the maximum acceptable difference between
Sensor 1 and Sensor 2 has been exceeded. Enabling Drift Alert Option Alarm will send
the transmitter's analog signal into alarm when Drift Alert is detected.

8. Select the engineering units you would like to use and press ENTER. Choose from degC,
degF, degR, Kelvin, mV, Ohms.

9. Enter the Sensor Drift Alert threshold value and press ENTER. This is a digital value that
triggers the Drift Alert feature. When this limit is exceeded, the transmitter will go into
alarm or generate a warning (depending on the alert mode chosen previously).

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10. Enter a damping value between 0 and 32 and press ENTER. This damping value is
additional damping applied to the result of (S1-S2) after each sensor's individual
damping value has already been applied.

11. Configuration is complete. Press OK.

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Disable Sensor Drift Alert in manual setup: Fast Keys 2-2-4-2-5

1. From the Home Screen, select 2 Configure.

2. Select 2 Manual Setup.

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3. Select 4 Diagnostics.

4. Select 2 Sensor Drift Alert.

5. Select 5 Config Drift Alert.

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6. Select 2 Disable to disable Sensor Drift alert and press ENTER.

7. Sensor Drift Alert has been disabled. Press OK.

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To verify that Sensor Drift Alert is enabled: Fast Keys 2-2-4-2

1. From the Home Screen, select 2 Configure.

2. Select 2 Manual Setup.

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3. Select 4 Diagnostics.

4. Select 2 Sensor Drift Alert.

5. You will see this screen. Under 1 Mode, it will say either Alarm or Warning if enabled, or
Disable. If enabled, it will also display the current diagnostic values.

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Active Sensor Drift Alerts

Viewing Active Sensor Drift Alerts: Fast Keys 1-1-2

When the Sensor Drift Alert diagnostic detects a drifting sensor, the LCD display will display a
message; “ALARM DRIFT ALERT” if configured in Alarm Mode and “WARN DRIFT ALERT” if
configured in Warning Mode.

1. Select 1 Overview.

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2. If Sensor Drift Alert is configured in Alarm Mode, select 1 Device Status: Failed.

If Sensor Drift Alert is configured in Warning Mode, select 1 Device Status:

Maintenance.

3. Select 2 Sensor Drift Alert Active.

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