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- Model 3144P Smart Temperature Transmitter

www.rosemount.com

Reference Manual

00809-0100-4021, Rev BA

April 2003

Model 3144P Smart

Temperature Transmitter

Reference Manual

00809-0100-4021, Rev BA

April 2003 Model 3144P

www.rosemount.com

Model 3144P Smart Temperature

Transmitter

Model 3144P Revision: 5.3.4

HART Field Device Revision: Dev. v3, DD v2

Rosemount Model 3144P Smart Temperature Transmitter may be protected by one or more U.S.

Patents Pending. Other foreign patents pending.

NOTICE

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, Rosemount Inc. 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.

Reference Manual

00809-0100-4021, Rev BA

April 2003 Model 3144P

www.rosemount.com

Table of Contents

SECTION 1

Introduction

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Environmental. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Software Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Model 3144P and Models 3144 / 3244MV Differences . . . . . . . . . . . . 1-4

SECTION 2

Installation

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Setting the Loop to Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Set the Switches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Typical North American Installation . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Typical European Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

In Conjunction with a Model 333 HART Tri-Loop . . . . . . . . . . . . . . 2-7

LCD Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Multichannel Installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Field Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Sensor Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Power/Current Loop Connections . . . . . . . . . . . . . . . . . . . . . . . . 2-11

Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Surges/Transients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Grounding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

SECTION 3

Commissioning

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Model 275 HART Communicator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Updating the Model 275 HART Communication Software . . . . . . . 3-2

Menu Tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Fast Key Sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

AMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Apply AMS Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Review Configuration Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Check Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Reference Manual

00809-0100-4021, Rev BA

April 2003

Model 3144P

TOC-2

Device Output Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

Device Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18

Measurement Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19

Diagnostics and Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21

Multidrop Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23

Use with the HART Tri-Loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24

SECTION 4

Operation and

Maintenance

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Trim the Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

Diagnostics with HART Communicator . . . . . . . . . . . . . . . . . . . . . 4-9

Diagnostics with AMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12

Assembling the Electronics Housing . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

Replacing the Electronics Module . . . . . . . . . . . . . . . . . . . . . . . . 4-13

LCD Meter Diagnostic Messages . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

AMS Screens Diagnostic Messages . . . . . . . . . . . . . . . . . . . . . . 4-16

Model 275 HART Communicator. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17

Diagnostic Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17

AMS Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20

Diagnostic Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20

AMS Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20

APPENDIX A

Specifications and

Reference Data

Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Functional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Physical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3

Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4

Dimensional Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7

Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-9

Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-9

Spare Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-10

Tagging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-10

Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-10

Software Tag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-10

External Ground Screw Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . A-11

Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-11

Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-11

Custom . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-11

APPENDIX B

Product Certifications

Hazardous Locations Installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

North American Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

European Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

Australian Approvals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3

Japanese Approval. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4

Brazilian Approval. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4

Combination Approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4

Additional Approvals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4

Installation Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-5

Reference Manual

00809-0100-4021, Rev BA

April 2003

TOC-3

Model 3144P

APPENDIX C

Safety Instrumented

System (SIS)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-1

Failure Rate Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-2

Model 3144P with and without a RTD . . . . . . . . . . . . . . . . . . . . . .C-2

Model 3144P with and without a Thermocouple. . . . . . . . . . . . . . .C-2

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-3

Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-3

Changing Switch Position. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-3

Reference Manual

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April 2003

Model 3144P

TOC-4

Reference Manual

00809-0100-4021, Rev BA

April 2003 Model 3144P

www.rosemount.com

Section 1 Introduction

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

Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-1

Model 3144P and Models 3144 / 3244MV Differences . . . page 1-4

OVERVIEW

Manual This manual is intended to assist in the installation, operation, and

maintenance of the Rosemount Model 3144P Smart Temperature Transmitter.

Section 1: Introduction

Section 2: Installation

Section 3: Commissioning

Section 4: Operation and Maintenance

Appendix A: Specifications and Reference Data

Appendix B: Hazardous Area Approvals

Appendix C: Safety Instrumented System (SIS)

Transmitter The Rosemount Model 3144P Smart Temperature Transmitter is a

microprocessor-based instrument that accepts input from a wide variety of

sensors and transmits temperature data to a control system or transmitter

interface. The transmitter combines Emerson Process Management reliability

with the flexibility of digital electronics. The transmitter is ideal for applications

that require high performance and/or remote communication.

The AMS software and Model 275 HART® Communicator use HART protocol

to interrogate, configure, test, and format the Model 3144P transmitter.

Communication can be made with the transmitter from the control room,

transmitter site, or across any other two points in the loop provided the loop

contains 250 to 1100 ohms of resistance.

Special dual-sensor features include Hot Backup

, sensor drift alert, first good,

differential and average temperature measurements, and four simultaneous

measurement variable outputs in addition to the analog output signal

CONSIDERATIONS

General Electrical temperature sensors, such as resistance temperature detectors

(RTDs) and thermocouples (T/Cs), produce low-level signals proportional to

temperature. The Model 3144P transmitter converts low-level sensor signals

to a standard 4–20 mA dc signal. This current signal is then transmitted to the

control room via two power/signal wires.

Reference Manual

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April 2003

Model 3144P

1-2

Electrical Proper electrical installation is essential to prevent errors due to sensor lead

resistance and electrical noise. Shielded cable should be used for best results

in electrically noisy environments. The current loop must have between 250

and 1100 ohms resistance for HART communications. Refer to Figure 2-10 on

page 2-11 for sensor and current loop connections.

Environmental Temperature Effects

The transmitter will operate within specifications for ambient temperatures

between –40 and 185 °F (–40 and 85 °C). 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 the use of

additional thermowell lagging, an extension nipple, or a remote mounting

configuration to isolate the transmitter from the process. Figure 1-1 describes

the relationship between housing temperature rise and extension length.

Figure 1-1. Model 3144P

Transmitter Housing

Temperature Rise versus

Extension Length for a Test

Installation.

Example:

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,

suppose 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),

which provides a safety margin of 23 °C (73 °F). A six-inch extension

length (R = 10 °C (50 °F)) would offer a higher safety margin (35 °C (95

°F)) and would reduce 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.

Housing Temperature Rise, Above

Ambient °C (°F)

3 4 5 6 7 8 9

60 (108)

50 (90)

40 (72)

30 (54)

20 (36)

10 (18)

3.6

Extension Length (in.)

3044-0123A

815 °C (1500 °F) Oven Temperature

540 °C (1000 °F)

Oven Temperature

250 °C (482 °F) Oven Temperature

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April 2003

Model 3144P

1-3

Moist or Corrosive Environments

The Model 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 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.

NOTE

Each transmitter is clearly marked with a tag indicating the approvals. Install

the transmitter in accordance with 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 used from

the unused approval type(s).

Mounting Take into account the need for access to the transmitter when choosing an

installation location and position.

Terminal Side of Electronics Housing

Mount the transmitter so the terminal side is accessible. Allow adequate

clearance for cover removal. Make wiring connections through the conduit

openings on the bottom of the housing.

Circuit Side of Electronics Housing

Mount the transmitter so the circuit side is accessible. Provide adequate

clearance for cover removal. Additional room is required for LCD 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 to a two-inch diameter pipe (see “Optional Transmitter Mounting

Brackets” on page A-8).

Software Compatibility Replacement transmitters may contain revised software that is not fully

compatible with the existing software in your HART communicator.

Model 275 HART Communicators and AMS software containing device

descriptors for the Models 3144 and 3244MV before December 2001 do not

fully support the new features of the Model 3144P. The HART Communicator

Field Device Revisions Dev v3,DD v2 should be loaded into the Model 275

HART Communicator to communicate with the new features of the Model

3144P. The Device Descriptors (DD) are available with new communicators or

can be loaded into existing communicators at any Emerson Process

Management Service Center. See Section 3: Commissioning for more device

revisions information.

Reference Manual

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April 2003

Model 3144P

1-4

MODEL 3144P AND

MODELS 3144 / 3244MV

DIFFERENCES

The following table identifies the differences between the Model 3144P and

Models 3144 and 3244MV Temperature Transmitters.

Improved Model 3144P Previous Model 3144 and 3244MV

Field Device Revision number 3 Field Device Revision number 2

Software Revision number 3 Software Revision number 1

Added sensor input types: DIN Type L, DIN

Type U, and extended temperature range of

Type N

Uses custom-configurable alarm limits Analog output and alarm levels can be

ordered to be NAMUR-compliant with option

codes A1 and CN

Improved 2- and 3-wire EMF compensation NA

First Good Temperature is available as a

device variable

2-wire fixed lead correction is available NA

Enhanced EMI rejection and filtering resulting

in unmatched stability in process measurement

Dual-sensor configuration is field selectable Model 3144 – single sensor

Model 3244MV – dual-sensor configuration

Reference Manual

00809-0100-4021, Rev BA

April 2003 Model 3144P

www.rosemount.com

Section 2 Installation

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-1

Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-2

Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-4

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-5

Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-9

Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-12

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.

Warnings

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 HART 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.

Reference Manual

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April 2003

Model 3144P

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COMMISSIONING The Model 3144P must be configured for certain basic variables to operate.

In many cases, all of these variables are pre-configured at the factory.

Configuration may be required if the transmitter is not configured or if the

configuration variables need revision.

Commissioning consists of testing the transmitter and verifying transmitter

configuration data. Model 3144P Series transmitters can be commissioned

either before or after installation. Commissioning the transmitter on the bench

before installation using a Model 275 HART Communicator or AMS ensures

that all transmitter components are in working order.

To commission on the bench, connect the transmitter and the HART

Communicator or AMS as shown in Figure 2-10 on page 2-11. Make sure the

instruments in the loop are installed according to intrinsically-safe or

non-incendive field wiring practices before connecting a communication in an

explosive atmosphere. Connect HART Communication leads at any

termination point in the signal loop. For convenience, connect them to the

terminals labeled “COMM” on the terminal block. Connecting across the

“TEST” terminals will prevent successful communication. Avoid exposing the

transmitter electronics to the plant environment after installation by setting all

transmitter jumpers during the commissioning stage on the bench.

When using a HART Communicator, any configuration changes made must

be sent to the transmitter by using the “Send” key (F2). AMS configuration

changes are implemented when the “Apply” button is clicked.

For more information on using the model 275 HART Communicator with the

Model 3144P transmitter, see Section 3: Commissioning.

Figure 2-1. Installation

Flowchart.

Setting the Loop to

Manual

When sending or requesting data that would disrupt the loop or change the

output of the transmitter, set the process application loop to manual. The

HART Communicator or AMS will prompt you to set the loop to manual when

necessary. Acknowledging this prompt does not set the loop to manual. The

prompt is only a reminder; set the loop to manual as a separate operation.

Yes

Bench

Calibration?

BASIC SETUP

Within

Specifications?

Refer to

Section 1:

Maintenance

Set Units

Set Number

of Wires

Set Damping

Set Range

Values

Set Sensor

Types

VERIFY

Simulate

Sensor Input

FIELD INSTALL

Set Jumpers or

Switches

Mount the

Transmitter

Power the

Transmitter

Check for

Process Leaks

Wire the

Transmitter

START

HERE

Done

Reference Manual

00809-0100-4021, Rev BA

April 2003

2-3

Model 3144P

Set the Switches Without a LCD meter

1. If the transmitter is installed, set the loop to manual.

2. Remove the housing cover on the electronics side of the transmitter. Do

not remove the transmitter cover in explosive atmospheres when the

circuit is live.

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 explosion-proof requirements.

5. Set the loop to automatic control.

With a LCD meter

1. If the transmitter is installed, set the loop to manual.

2. Remove the housing cover on the electronics side of the transmitter. Do

not remove the transmitter cover in explosive atmospheres when the

circuit is live.

3. Remove the housing cover, unscrew the LCD meter screws and gently

slide the meter straight off.

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

5. Gently slide the LCD meter back into place, taking extra precautions of

the 10 pin connection.

6. Secure the LCD meter by replacing the LCD meter screws.

7. Replace the transmitter cover. Both transmitter covers must be fully

engaged to meet explosion-proof requirements.

8. Set the loop to automatic control.

Table 2-1. Transmitter Switch

Locations.

Transmitter Security Switch

The transmitter is equipped with a write-protect switch that can be positioned

to prevent the accidental or deliberate change of configuration data.

Failure Mode Switch

The transmitter monitors itself during normal operation with an automatic

diagnostic routine. If the diagnostic routine detects a sensor failure or a failure

in the transmitter electronics, the transmitter goes into alarm (high or low,

depending on the position of the failure mode switch).

Switch Location LCD Meter Faceplate

Failure Mode

Security

Diagram of

Switches

Fail Mode and Security Switch

LCD

Connector

3144- 0200G33A, 0001B01B

Reference Manual

00809-0100-4021, Rev BA

April 2003

Model 3144P

2-4

The analog alarm and saturation values that the transmitter uses 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 2-2. Values for standard

and NAMUR operation

MOUNTING If possible, mount the transmitter 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 2-3, is advisable. Remove the terminal compartment

cover periodically and inspect the transmitter for moisture and corrosion.

Figure 2-2. Incorrect Conduit

Installation

Figure 2-3. Recommended

Mounting with Drain Seal

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

shown in Figure 2-4. If mounting the transmitter apart from the sensor

assembly, use conduit between the sensor and transmitter. The transmitter

accepts male conduit fittings with 1/2–14 NPT, M20 × 1.5 (CM 20), PG 13.5

(PG 11), or JIS G1/2 threads (M20 × 1.5 (CM 20), PG 13.5 (PG 11), or JIS G1/2

threads are provided by an adapter). Make sure only qualified personnel

perform the 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.

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

Conduit

Lines

Conduit

Lines

3144-0429A, 0429B

Thermowell Sensor Hex

Conduit for

Field Wiring

Poured Conduit Seal (Where Required)

Union Coupling with Extension

Sealing

Compound

3144-0430B

Reference Manual

00809-0100-4021, Rev BA

April 2003

2-5

Model 3144P

INSTALLATION

Typical North American

Installation

1. Attach the thermowell to the pipe or process container wall. Install and

tighten thermowells and sensors. Apply process pressure to perform a

leak test.

2. Attach necessary unions, couplings, and extension fittings. Seal the

fitting threads with teflon® (PTFE) tape (if required).

3. Screw 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 Teflon (PTFE) tape (if required).

6. Pull sensor leads through the extensions, unions, or couplings into the

terminal side of the transmitter housing.

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. Both transmitter covers must

be fully engaged to meet explosion-proof requirements.

Figure 2-4. Typical North

American Mounting

Configuration.

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.

Thermowell Extension

Conduit for Field

Wiring (dc power)

3.2

(81)

Extension

Fitting

Length

Union or

Coupling

NOTE: Dimensions are in inches (millimeters).

3144-0433B

Reference Manual

00809-0100-4021, Rev BA

April 2003

Model 3144P

2-6

Typical European

Installation

1. Mount the thermowell to the pipe or the process container wall. Install

and tighten thermowells and sensors. 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.

The wiring diagram is 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 2-5.

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 2-5. Typical European

Process Mounting

Configuration.

644-0000B05B

Cable

Gland

Shielded Cable from

Sensor to Transmitter

Shielded Cable

from Transmitter

to Control Room

2-inch

Pipe

Mounting

Bracket

Reference Manual

00809-0100-4021, Rev BA

April 2003

2-7

Model 3144P

In Conjunction with a

Model 333 HART

Tri-Loop

Use the dual-sensor option Model 3144P transmitter that is operating with two

sensors in conjunction with a Model 333 HART Tri-Loop® HART-to-Analog

Signal Converter to acquire an independent 4–20 mA analog output signal for

each sensor input. The Model 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 2-6 for basic installation information. Refer to the Model 333

HART Tri-Loop HART-to-Analog Signal Converter Reference Manual

(document number 00809-0100-4754) for complete installation information.

Figure 2-6. HART Tri-Loop

Installation Flowchart(1)

(1) See “Use with the HART Tri-Loop” on page 3-24 for configuration information.

START

HERE

Unpack the

Tri-Loop

Review the

Tri-Loop

Reference

Manual

Install the

Model 3144P

Set the Model

3144P Burst

Command

Order

Set the Model

3144P to Burst

HART

Command 3

Review

Tri-Loop

Installation

Considerations

Mount the

Tri-Loop to a

DIN Rail

Run Wires from

Model 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

Test?

COMMISSION

THE TRI-LOOP

Configure the

Tri-Loop to

Receive Model

3144P Burst

Commands

Model 3144P

Installed?

Refer to the

HART Tri-Loop

Reference

Manual

DONE

Yes

Reference Manual

00809-0100-4021, Rev BA

April 2003

Model 3144P

2-8

LCD Meter Transmitters ordered with the LCD meter option (Option Code M5) are

shipped with the LCD meter installed. After-market installation of the LCD

meter on a conventional Model 3144P transmitter requires a small instrument

screwdriver and the LCD meter kit, which includes:

• LCD meter assembly

• Extended cover with cover O-ring in place

• Captive screws (quantity 2)

• 10-pin interconnection header

Use the following procedure to install the LCD meter. Once the LCD meter is

installed, configure the transmitter to recognize the meter option. Refer to

“LCD Meter Options” on page 3-19.

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

disconnect the power.

2. Remove the housing cover from the electronics side of the transmitter.

Do not remove the transmitter covers in explosive atmospheres if the

circuit is live.

3. Ensure that the transmitter security mode switch is set to the Off

position. If transmitter security is On, then you will not be able to

configure the transmitter to recognize the LCD meter. If security On is

desired, first configure the transmitter for the LCD meter and then install

the meter.

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

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

5. Orient the meter. The meter can be rotated in 90-degree increments for

easy viewing. Position one of the four 10-pin sockets on the back of the

meter to accept the interconnection header.

6. Attach the LCD meter assembly to the interconnection pins. Thread and

tighten the LCD meter 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.

NOTE

Observe the following LCD meter temperature limits:

Operating:–4 to 185 °F (–20 to 85 °C)

Storage:–50 to 185 °F (–45 to 85 °C)

Reference Manual

00809-0100-4021, Rev BA

April 2003

2-9

Model 3144P

Multichannel

Installations

You can connect several transmitters to a single master power supply (see

Figure 2-7). 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 2-7 prevent unwanted

charging or discharging of the back-up battery.

Figure 2-7. Multichannel

Installations.

WIRING

Field Wiring All 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 the best

results. Do not run unshielded signal wiring in conduit or open trays with

power wiring or near heavy electrical equipment. High voltage may be present

on the leads and may cause electrical shock. To wire the transmitter for

power, follow the steps below.

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 2-8.

Crimped lugs are recommended when wiring to screw terminals.

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

additional power wiring is required.

4. Replace the transmitter covers. Both transmitter covers must be fully

engaged to meet explosion-proof requirements.

NOTE

Do not apply high voltage (e.g., ac line voltage) to the transmitter terminals.

Abnormally high voltage can damage the unit.

Figure 2-8. Transmitter Terminal

Block

Transmitter

No. 1 Readout or

Controller No. 1

Transmitter

No. 2

Readout or

Controller No. 2

Battery

Backup

To Additional

Transmitters

Power

Supply

3044-0131A

Between 250 and 1100 Ω

If No Load Resistor

RLead

Negative Terminal

Positive Terminal

Test Terminal

Transmitter Ground

Terminal

Sensor Terminals

3144-0200E01D

Reference Manual

00809-0100-4021, Rev BA

April 2003

Model 3144P

2-10

Figure 2-9. Sensor Wiring

Diagram.

Sensor Connections Figure 2-9 on page 2-10 shows the correct sensor wiring connections to the

transmitter sensor terminals. To ensure an adequate sensor connection,

anchor the sensor lead wires beneath the flat washer on the 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.

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

10 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.

Model 3144P Single Sensor Connections Diagram

Model 3144P Dual-Sensor Connections Diagram

* Transmitter must be configured for a 3-wire RTD in order to recognize an RTD with a

compensation loop.

** Emerson Process Management provides 4-wire sensors for all single-element RTDs. You can use

these RTDs in 3-wire configurations by leaving the unneeded leads disconnected and insulated with

electrical tape.

*** Typical wiring configuration of a Rosemount dual-element RTD is shown (R=Red, W=White,

G=Green, B=Black)

4-wire RTD

and Ohms

T/Cs and

Millivolts

RTD with

Compensation

Loop*

2-wire RTD

and Ohms

3-wire RTD

and Ohms**

3144-0000E05A

3144-0000F05A

Average.

Temp./DT/Hot

Backup/

Dual-sensor

with 2 RTDs

Average.

Temp./DT/Hot

Backup/

Dual-sensor

with 2

Thermocouples

Average.

Temp./DT/

Hot Backup/Dual

Sensor with

RTDs/

Thermocouples

Average.

Temp./DT/Hot

Backup/Dual

Sensor with

RTDs/

Thermocouples

Average.

Temp./DT/

Hot Backup/Dual

Sensor with 2

RTDs with

Compensation

Loop

***

RWW & G

** ****

Reference Manual

00809-0100-4021, Rev BA

April 2003

2-11

Model 3144P

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

The use of two grounded thermocouples with a dual option Model 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.

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 V dc.

1. Connect the current signal leads as shown in Figure 2-10.

2. Recheck the polarity and correctness of connections.

3. Turn the power ON.

For information about multichannel installations, refer to page 2-14.

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 that is 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” on page 4-3 for use of the terminal.

Figure 2-10. Connecting

a Communicator to a

Transmitter Loop.

Power/Signal Terminals

The signal wire may be grounded at

any point or left ungrounded.

Power

Supply

250  ≤ RL ≤ 1100 

AMS software or a HART 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.

3144-0000A04A

or*

Reference Manual

00809-0100-4021, Rev BA

April 2003

Model 3144P

2-12

POWER SUPPLY An external power supply is required to operate the Model 3144P (not

included). The input voltage range of the transmitter is 12 to 42.4 V DC. This

is the power required across the transmitter power terminals. The power

terminals are rated to 42.4 V DC. With 250 ohms of resistance in the loop, the

transmitter will require a minimum of 18.1 V DC 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 2-11 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

Do not allow the voltage to drop below 12.0 V dc at the transmitter terminals

when changing transmitter configuration parameters, or permanent damage

to the transmitter could result.

Figure 2-11. Load Limits.

Surges/Transients The transmitter will withstand electrical transients of the energy level usually

encountered in static discharges or induced switching. However, high-energy

transients, such as those induced in wiring from nearby lightning strikes, can

damage both the transmitter and the sensor.

To protect against high-energy transients, install the integral transient

protection board (option code T1) or the Rosemount Model 470 Transient

Protector. The integral transient protection board is available as an ordered

option or as an accessory. Refer to “ Transient Protection (Option Code T1)”

on page A-16 for more information. The Model 470 transient protector is

available only as an accessory. Refer to the Model 470 Transient Protector

Product Data Sheet (document number 00813-0100-4191) for more

information.

Maximum Load = 40.8 X (Supply Voltage - 12.0)

1240

1000

750

250

12.0

20 30 40 42.4

Supply Voltage (V dc)

Operating

Region

4–20 mA dc

Load (Ohms)

500

1100

Reference Manual

00809-0100-4021, Rev BA

April 2003

2-13

Model 3144P

Grounding 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,

little current will actually enter the transmitter.

If the ends of the shield are left ungrounded, a 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 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 they will

interfere with the circuit operation.

Shielding Recommendations

The following are recommended practices are 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 techniques unsuccessfully prevent

transmitter alarms due to high EMI, contact a 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 housing.

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

4. Ensure the shield at the sensor is electrically isolated from the

surrounding fixtures that may be grounded.

Sensor Wires 4–20 mA loop

Connect shields together, electrically isolated from the transmitter

Shield ground point

Reference Manual

00809-0100-4021, Rev BA

April 2003

Model 3144P

2-14

Option 2: recommended for grounded transmitter housing

1. Connect the sensor wiring shield to the transmitter housing, provided

the transmitter housing is grounded (see "Transmitter Housing").

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.

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 form the transmitter housing and other fixtures that may

be grounded.

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

Grounded Thermocouple Inputs

1. Ground the sensor wiring shield at the sensor.

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

isolated form the transmitter housing and other fixtures that may

be grounded.

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

Transmitter Housing

Ground the transmitter housing in accordance with local 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-5 on page A-16).

Sensor Wires 4–20 mA loop

Shield ground points

Sensor Wires 4–20 mA loop

Shield ground points

Sensor Wires 4–20 mA loop

Shield ground points

Reference Manual

00809-0100-4021, Rev BA

April 2003 Model 3144P

www.rosemount.com

Section 3 Commissioning

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-1

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-1

Model 275 HART Communicator . . . . . . . . . . . . . . . . . . . . page 3-2

AMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-5

Review Configuration Data . . . . . . . . . . . . . . . . . . . . . . . . page 3-5

Check Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-6

Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-6

Device Output Configuration . . . . . . . . . . . . . . . . . . . . . . . page 3-14

Device Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-18

Measurement Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-19

Diagnostics and Service . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-21

Multidrop Communication . . . . . . . . . . . . . . . . . . . . . . . . . page 3-23

Use with the HART Tri-Loop . . . . . . . . . . . . . . . . . . . . . . . page 3-24

OVERVIEW This section contains information on commissioning and tasks that should be

performed on the bench prior to installation. This section contains Model

3144P HART configuration only. HART Communicator and AMS instructions

are given to perform configuration functions. For additional information, refer

to the Model 275 HART Communication Reference Manual (document

number 00809-0100-4275). AMS help can be found in the AMS on-line guides

within the AMS system.

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.

Warnings

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 HART 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 BA

April 2003

Model 3144P

3-2

MODEL 275 HART

COMMUNICATOR

The HART 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 HART Communicator in parallel

with the transmitter (see Figure 2-11). Use the loop connection ports on the

rear panel of the HART Communicator. The connections are non-polarized.

Do not make connections to the serial port or the NiCad recharger jack in

explosive atmospheres. Before connecting the HART 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

Updating the Model 275

HART Communication

Software

You may need to upgrade the Model 275 HART Communicator software to

take advantage of the additional features available in the Model 3144P (field

device revision 3). Perform the following steps to determine if an upgrade is

required.

1. Turn on your communicator and select 4 Utility, then 5 Simulation.

2. Choose “Rosemount” from the list of manufacturers and “3144 Temp”

from the list of models.

3. If the Fld Dev Rev choices include “Dev v3, DD v2,” an upgrade is not

required. If the only choice is “Dev v1” or “Dev v2” (with any DD version),

than the communicator should be upgraded.

NOTE

If you initiate communication with an improved Model 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 275 software to access new XMTR functions.

Continue with old description?

If you select 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. If you select

NO, the communicator will default to a generic transmitter functionality.

If YES is selected when the transmitter is already 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 question above and

default to the generic transmitter functionality.

To see a list of enhancements included in the improved transmitters, see

“Model 3144P and Models 3144 / 3244MV Differences” on page 1-3.

Reference Manual

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April 2003

3-3

Model 3144P

Menu Tree Figure 3-1 displays a complete Model 3144P menu tree for use with the

Model 275 HART Communicator. Options listed in bold type indicate that a

selection provides other options.

Figure 3-1. HART Communicator Menu Tree

NOTE

The review menu

lists all of the

information

stored in the

Model 3144P. This

includes device

information,

measuring

element, output

configuration, and

software revision.

1. TEST DEVICE

2. CALIBRATION

Online Menu 1. Snsr 1

2. Snsr 2

3. Terminal

4. Diff.

5. Avg

6. First Good

1. Snsr inp trim

2. Snsr trim-fact

3. Active Calibrator

1. Loop Test

2. Self test

3. Master Reset

4. Status

1. SNSR TRIM

2. D/A trim

3. Scaled D/A trim

1. PROCESS

VARIABLE

2. DIAGNOSTICS

AND SERVICE

3. CONFIGURATION

4. REVIEW

1. VARIABLE

MAPPING

2. SENSOR

CONFIGURATION

3. DUAL-SENSOR

CONFIGURATION

4. DEV OUTPUT

CONFIGURATION

5. DEVICE

INFORMATION

6. MEASUREMENT

FILTERING

1. Device Variables

2. PV is

3. PV Digital

4. PV AO

5. PV% rnge

6. PV LRV

7. PV URV

8. PV LSL

9. PV USL

10.PV Damp

1. DEVICE SETUP

2. PV is

3. PV

4. AO

5. % RNGE

6. PV LRV

7. PV URV

1. PV is

2. SV is

3. TV is

4. QV is

5. Variable re-map

1. Chng Type/Conn

2. Show Type/Conn

3. Sensor 1 Setup

4. Sensor 2 Setup

5. Term Temp Setup

1. PV RANGE

VALUES

2. ALARM

SATURATION

3. HART OUTPUT

4. LCD METER

OPTIONS

1. AO alrm type

2. AO Levels

3. Non-PV Alarms

1. Poll addr

2. Num req preams

3. Burst mode

4. Burst option

1. Meter Configuration

2. Meter Decimal Point

3. Meter Bar Graph

1. Tag

2. Date

3. Descriptor

4. Message

5. Final Assembly number 1. 50/60 Hz Filter

2. Intermit Detect

3. Intermit Thresh

4. Open Sensor

Holdoff

1. PV LRV

2. PV URV

3. PV Damping

4. PV Units

5. PV LSL

6. PV USL

7. PV Min. Span

1. Low Alarm

2. High Alarm

3. Low Sat.

4. High Sat.

5. Preset Alarms

1. Sensor 1

2. Sensor 2

1. Snsr 1 Units

2. Snsr 1 damp

3. Snsr 1 S/N

4. Snsr 1 LSL

5. Snsr 1 USL

6. 2-Wire Offset

1. Snsr 2 Units

2. Snsr 2 damp

3. Snsr 2 S/N

4. Snsr 2 LSL

5. Snsr 2 USL

6. 2-Wire Offset

1. Terminal Units

2. Terminal Damp

3. Terminal LSL

4. Terminal USL

1. Diff Config

2. Avg Config

3. First Good Config

4. Config Hot Backup

5. Drift Alert

1. Diff Units

2. Diff Damp

3. Diff LSL

4. Diff USL 1. Avg Units

2. Avg Damp

3. Avg LSL

4. Avg USL

1. First Good Units

2. First Good Damp

3. First Good LSL

4. First Good USL

1. Drift Alert option

2. Drift Limit

3. Drift Damping

1. Revision #s

2. Dynamic Variables

3. Device Variables

4. Sensor Variables

5. Other Variables

Reference Manual

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April 2003

3-4

Model 3144P

Fast Key Sequences Fast key sequences are listed below for common transmitter functions.

NOTE:

The fast key sequences assume that Device Descriptor Dev v3, DD v2 is

being used. Table 3-1 provides alphabetical function lists for all Model 275

HART Communicator tasks as well as their corresponding fast key

sequences.

Table 3-1. Model 3144P Fast

Key Sequence

Function HART Fast Keys Function HART Fast Keys

Active Calibrator 1, 2, 2, 1, 3 Open Sensor Holdoff 1, 3, 6, 4

Alarm Values 1, 3, 4, 2, 1 Percent Range 1, 1, 5

Analog Output 1, 1, 4 Poll Address 1, 3, 4, 3, 1

Average Temperature Setup 1, 3, 1, 5, 4 Process Temperature 1, 1

Average Temperature Configuration 1, 3, 3, 2 Process Variables 1, 1

Burst Mode 1, 3, 4, 3, 3 Range Values 1, 3, 4, 1

Burst Option 1, 3, 4, 3, 4 Review 1, 4

Calibration 1, 2, 2 Scaled D/A Trim 1, 2, 2, 3

Configure Hot Backup 1, 3, 3, 4 Sensor 1 Configuration 1, 3, 2, 1, 1

Configuration 1, 3 Sensor 2 Configuration 1, 3, 2, 1, 2

D/A Trim 1, 2, 2, 2 Sensor Limits 1, 3, 2, 2

Damping Values 1, 3, 4, 1, 3 Sensor 1 Serial Number 1, 3, 2, 3, 3

Date 1, 3, 5, 2 Sensor 2 Serial Number 1, 3, 2, 4, 3

Descriptor 1, 3, 5, 3 Sensor 1 Setup 1, 3, 2, 3

Device Information 1, 3, 5 Sensor 2 Setup 1, 3, 2, 4

Diagnostics and Service 1, 2 Sensor Trim 1, 2, 2, 1, 1

Differential Temperature Setup 1, 3, 1, 5, 3 Sensor Type 1, 3, 2, 1

Differential Temperature Configuration 1, 3, 3, 1 Sensor 1 Unit 1, 3, 2, 3, 1

Drift Alert 1, 3, 3, 5 Sensor 2 Unit 1, 3, 2, 4, 1

Filter 50/60 Hz 1, 3, 6, 1 Software Revision 1, 4, 1

First Good Temperature Setup 1, 3, 1, 5, 5 Status 1, 2, 1, 4

First Good Temperature Configuration 1, 3, 3, 3 Tag 1, 3, 5, 1

Hardware Revision 1, 4, 1 Terminal Temperature Setup 1, 3, 2, 5

Hart Output 1, 3, 4, 3 Test Device 1, 2, 1

Intermittent Sensor Detect 1, 3, 6, 2 Transmitter-Sensor Matching 1, 3, 2, 1, 1

Intermittent Threshold 1, 3, 6, 3 URV (Upper Range Value) 1, 3, 4, 1, 2

Loop Test 1, 2, 1, 1 USL (Upper Sensor Limit) 1, 3, 4, 1, 6

LRV (Lower Range Value) 1, 3, 4, 1, 1 Variable Mapping 1, 3, 1

LSL (Lower Sensor Limit) 1, 3, 4, 1, 5 Wires 1, 3, 2, 1, 1

Master Reset 1, 2, 1, 3 2-wire Offset Sensor 1 1, 3, 2, 3, 6

Message 1, 3, 5, 4 2-wire Offset Sensor 2 1, 3, 2, 4, 6

Meter Options 1, 3, 4, 4

Reference Manual

00809-0100-4021, Rev BA

April 2003

3-5

Model 3144P

AMS One of the key benefits of intelligent devices is the ease of device

configuration. When used with AMS, the Model 3144P is easy to configure

and provides instant and accurate alerts and alarms. The main configuration

screen of the Model 3144P is the “Configuration Properties” screen. From this

screen, the transmitter set-up can easily be viewed and edited.

The screens use a color-coding to give visual indication of the transmitter

health and to indicate any changes that may need to be made or written to the

transmitter.

• Gray screens: indicates that all information has been written to the

transmitter

• Yellow on screen: changes have been made in the software but not

sent to the transmitter

• Green on screen: all current changes on screen have been written to

the transmitter

• Red on screen: indicates an alarm or alert that requires immediate

investigation

Apply AMS Changes Changes made in the software must be sent to the transmitter in order for the

changes to take effect in the process.

1. From the bottom of the “Configuration Properties” screen, click Apply.

2. An “Apply Parameter Modification” screen appears, enter desired

information and click OK.

3. After carefully reading the warning provided, select OK.

REVIEW

CONFIGURATION DATA

Before operating the Model 3144P in an actual installation, review all of the

factory-set configuration data to ensure that it reflects the current application.

Review

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 to check each variable. If changes

to the transmitter configuration data are necessary, refer to “Configuration”

below.

AMS

Right click on the device and select “Configuration Properties” from the

menu. Select the tabs to review the transmitter configuration data.

HART Fast Keys 1, 4

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April 2003

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Model 3144P

CHECK OUTPUT Before performing other transmitter online operations, review the

configuration of the Model 3144P digital output parameters to ensure that the

transmitter is operating properly.

Process Variables

The Model 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.

AMS

Right click on the device and select “Configuration Properties” from the

menu. Select the Analog Output tab to review the transmitter Analog

Output Range.

CONFIGURATION The Model 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 configuration variables need revision.

Variable Mapping

The Variable Mapping menu displays the sequence of the process variables.

Select 5 Variable Re-Map to change this configuration. With the Model 3144P

single sensor input configuration, screens follow that 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.

With the Model 3144P dual-sensor option configuration, screens follow that

allows 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

Temperature, Terminal Temperature, and Not Used. The primary variable is

the 4–20 mA analog signal.

AMS

Right click on the device and select “Configuration Properties” from the

menu. Select the Analog Output tab to review the Mapped Variable

Output.

Apply changes made (see “Apply AMS Changes” on page 3-5).

Sensor Configuration

Sensor configuration contains information for updating the sensor type,

connections, units, and damping.

HART Fast Keys 1, 1

HART Fast Keys 1, 3, 1

HART Fast Keys 1, 3, 2

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April 2003

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Model 3144P

Change Type and Connections

The Connections command allows the user to select the sensor type and the

number of sensor wires to be connected. Select from the following sensor

types:

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

platinum RTDs (α = 0.00385 Ω/Ω/°C)

• 2-, 3-, or 4-wire Pt 100 (α = 0.003916 Ω/Ω/°C)

• 2-, 3-, or 4-wire Ni 120 nickel RTDs

• 2-, 3-, or 4-wire Cu 10 RTDs

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

• DIN type L, U thermocouples

• ASTM Type W5Re/W26Re thermocouple

• –10 to 100 millivolts

• 2-, 3-, or 4-wire 0 to 2000 ohms

Contact a Emerson Process Management representative for information on

the temperature sensors, thermowells, and accessory mounting hardware

that is available through Emerson Process Management.

AMS

Right click on the device and select “Configuration.” Select “Sensor

Connections,” then “Change type and connection.” The wizard will walk

through the screens.

Output Units

The Snsr 1 Unit and Snsr 2 Unit commands set the desired primary variable

units. Set the transmitter output to one of the following engineering units:

• Degrees Celsius

• Degrees Fahrenheit

• Degrees Rankine

• Kelvin

•Ohms

• Millivolts

AMS

Right click on the device and select “Configuration Properties” from the

menu. Select the Sensor 1 (or Sensor 2) tab to configure the Sensor

Ouput Units. Set the units to the desired output.

Apply changes made (see “Apply AMS Changes” on page 3-5).

HART Fast Keys 1, 3, 2, 1

HART Fast Keys 1, 3, 2, 3 or 4

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April 2003

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Model 3144P

Sensor 1 Serial Number

The Sensor 1 S/N variable provides a location to list the serial number of the

attached sensor. It is useful for identifying sensors and tracking sensor

calibration information.

AMS

Right click on the device and select “Configuration Properties” from the

menu. Select the Sensor 1 tab to configure the Sensor 1 Serial #.

Apply changes made (see “Apply AMS Changes” on page 3-5).

Sensor 2 Serial Number

The Sensor 2 S/N variable provides a location to list the serial number of a

second sensor.

AMS

Right click on the device and select “Configuration Properties” from the

menu. Select the Sensor 2 tab to configure the Sensor 2 Serial #.

Apply changes made (see “Apply AMS Changes” on page 3-5).

2-Wire RTD Offset

The 2-wire Offset command allows the user to input the measured lead wire

resistance, which will result in the transmitter adjusting its temperature

measurement to correct the error caused by this resistance. Due to a lack of

lead wire compensation within the RTD, temperature measurements made

with a 2-wire RTD are often inaccurate.

To utilize this feature perform the following steps:

1. Measure the lead wire resistance of both RTD leads after installing the

2-wire RTD and the Model 3144P.

2. From the HOME screen, select 1 Device Setup, 3 Configuration,

2 Sensor Configuration, 3 Sensor 1 Setup, 6 2-Wire Offset.

3. Enter the total measured resistance of the two RTD leads at the 2-Wire

Offset prompt. Enter this resistance as a negative (–) value to ensure

proper adjustment.The transmitter then adjusts its temperature

measurement to correct the error caused by lead wire resistance.

4. Repeat Steps 1 through 3 for sensor 2, selecting 1 Device Setup, 3

Configuration, 2 Sensor Configuration, 4 Sensor 2 Setup, 6 2-Wire

Offset.

AMS

Right click on the device and select “Configuration Properties” from the

menu. Select the Sensor 1 (or Sensor 2) tab to configure the 2 Wire Offset.

Apply changes made (see “Apply AMS Changes” on page 3-5).

HART Fast Keys 1, 3, 2, 3, 3

HART Fast Keys 1, 3, 2, 4, 3

HART Fast Keys 1, 3, 2, 3, 6

Reference Manual

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April 2003

3-9

Model 3144P

Terminal Temperature

The Terminal Temp command sets the terminal temperature units to indicate

the temperature at the transmitter terminals.

AMS

Right click on the device and select “Configuration Properties” from the

menu. Select the Electronics tab to configure the Terminal Temperature. In

the Terminal Temperature box, Set the Termnl Units to the desired output.

Apply changes made (see “Apply AMS Changes” on page 3-5).

Dual-Sensor Configuration

Dual-sensor configuration allows configuration of the functions that can be

used with a dual-sensor configured transmitter. This includes Differential

Temperature, Average Temperature, First Good Temperature, Hot Backup,

and Sensor Drift Alert.

Differential Temperature

The Model 3144P configured for a dual-sensor can accept any two inputs

and display the differential temperature between them. Use the following

procedure to configure the transmitter to measure differential temperature.

First, configure Sensor 1 and Sensor 2 appropriately. Select 1 Device

Setup, 3 Configuration, 2 Sensor Configuration, 1 Change type/conn to set

the sensor type and number of wires for Sensor 1. Repeat for Sensor 2.

NOTE

This procedure reports the differential temperature as the primary variable

analog signal. If this is not necessary, assign differential temperature to the

secondary, tertiary, or quaternary variable.

1. From the HOME screen, select 1 Device Setup, 3 Configuration, 1

Variable Mapping, 5 Variable Re-Map to prepare to set the transmitter

to display differential temperature. Set the control loop to manual and

select OK.

2. Select 3 Diff from the Primary Variable (PV) menu.

3. Select three of the five variables (average temperature, sensor 1, sensor

2, First-Good, and terminal temperature) for the Secondary Variable

(SV), Tertiary Variable (TV), and Quaternary Variable (QV).

NOTE

The transmitter determines the differential temperature by subtracting

Sensor 2 from Sensor 1 (S1 – S2). Ensure that this order of subtraction is

consistent with the desired reading for the application. Refer to Figure 2-12 on

page 2-16, or inside the transmitter terminal-side cover for sensor wiring

diagrams.

HART Fast Keys 1, 3, 2, 5

HART Fast Keys 1, 3, 3

HART Fast Keys 1, 3, 1, 5, 3

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Model 3144P

4. Select OK after verifying the variable settings from the variable mapping

menu.

5. Select OK to return the control loop to automatic control.

6. Select HOME to return to the Online menu.

7. Select 1 Device Setup, 3 Configuration, 3 Dual-sensor configuration, 1

Differential Config, 1 Differential Units to set the desired differential units.

8. Select HOME to return to the Home screen.

If you are using a LCD meter for local indication, configure the meter to

read the appropriate variables using the “LCD Meter Options” on

page 3-17.

AMS

For AMS, configure each sensor as indicated above.

Right click on the device and select “Configuration Properties” from the

menu. Select the Dual Sensor tab to configure the Differetial

Temperature.In the Differential Temperature box, Set the Diff Units to the

desired output. Set damping if applicable.

Apply changes made (see “Apply AMS Changes” on page 3-5).

Average Temperature

The Model 3144P transmitter configured for dual-sensors can output and

display the average temperature of any two inputs. Use the following

procedure to configure the transmitter to measure the average

temperature.

First, 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 necessary, assign the average temperature to the

secondary, tertiary, or quaternary variable.

1. From the Home screen, select 1 Device Setup, 3 Configuration, 1

Variable Mapping, 5 Variable Re-map to set the transmitter to display the

average temperature. Set the control loop to manual and select OK.

2. Select 4 Sensor Average from the Primary Variable (PV) menu.

3. Select three of the five variables (differential temperature, sensor 1,

sensor 2, First-Good, and terminal temperature) for the Secondary

Variable (SV), Tertiary Variable (TV), and Quaternary Variable (QV).

4. Select OK after verifying the variable settings in variable mapping menu.

5. Select OK to return the control loop to automatic control.

6. Select HOME to return to the Online menu.

7. Select 1 Device Setup, 3 Configuration, 3 dual sensor configuration, 2

average, 1 avg units to set the desired average temperature units.

8. Select HOME to return to the Home screen.

HART Fast Keys 1, 3, 1, 5, 4

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Model 3144P

If using a LCD meter, configure it to read the appropriate variables using

“LCD Meter Options” on page 3-17.

NOTE

If Sensor 1 and/or Sensor 2 should fail while PV is configured for average

temperature and Hot Backup is not enabled, the transmitter will go into alarm.

For this reason, when PV is Sensor Average it is recommended that Hot

Backup 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 occures when Hot Backup 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.

• 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, where Hot Backup is enabled with PV set to Sensor

Average, the 4-20 mA signal is not disrupted and the status available to the

control system (via HART) specifes which sensor has failed.

AMS

For AMS, configure each sensor as indicated above.

Right click on the device and select “Configuration Properties” from the

menu. Select the Dual Sensor tab to configure the Average

Temperature.In the Average Temperature box, Set the Ave Units to the

desired output. Set damping if applicable.

Apply changes made (see “Apply AMS Changes” on page 3-5).

First-Good Configuration

The First Good device variable is useful for applications in which

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 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 it is desired that the transmitter not go into analog output alarm while

having the PV mapped to first good and Sensor 1 fails, enable “Suspend

Non-PV Alarm” mode. This combination will prevent the analog ouput from

going to the alarm level unless BOTH sensors fail.

AMS

For AMS, configure each sensor as indicated above.

HART Fast Keys 1, 3, 1, 5, 5

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April 2003

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Model 3144P

Right click on the device and select “Configuration Properties” from the

menu. Select the Dual Sensor tab to configure the 1st Good. In the 1st

Good box, set the 1st Good Units to the desired output. Set damping if

applicable.

Apply changes made (see “Apply AMS Changes” on page 3-5).

Hot Backup Configuration

The Config Hot BU command configures the transmitter to automatically

use Sensor 2 as the primary sensor if Sensor 1 fails. With Hot Backup

enabled, the primary variable (PV) must either be First Good or Sensor

Average (see “Average Temperature” on page 3-10 for details on using

Hot Backup when PV is Sensor Average). You can map Sensors 1 or 2 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 Hot Backup mode and Sensor 2 becomes the PV. The 4–20 mA

signal is not disrupted and a status is available to the control system (via

HART) that Sensor 1 has failed. An LCD meter, if attached, also displays

the failed sensor status.

While configured to Hot Backup, if Sensor 2 fails while 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 (via

HART) that Sensor 2 has failed. In Hot Backup mode, the transmitter will

not revert back to Sensor 1 to control the 4–20 mA analog output until the

Hot Backup mode is reset. Reset Hot Backup either by re-enabling via

HART or by briefly powering down the transmitter.

To set up and enable the Hot Backup feature for the Model 3144P

transmitter, perform the following procedure:

1. Attach any two sensors to the transmitter as shown in Figure 2-12 on

page 2-16.

2. From the Home screen, select 1 Device Setup, 3 Configuration, 1

Variable Mapping, 5 Variable Re-map to set primary, secondary, tertiary,

and quaternary variables. The communicator displays the PV, SV, TV,

and QV menus in succession.

3. Set PV as First Good or Sensor Average; set secondary, tertiary, and

quaternary variables as desired.

4. Select OK after verifying the variable settings from the Variable Mapping

menu.

5. Select OK to return the control loop to automatic control. Select HOME

to return to the Home screen.

6. From the Home screen, select 1 Device Setup, 3 Configuration, 2

Sensor Configuration, 1 Change Type and Conn, 3 Sensor 1 Setup to

configure Sensor 1.

7. Set the sensor type, number of wires, damping, and units for Sensor 1.

8. Select SEND to download the new data to the transmitter. Select HOME

to return to the Home screen.

9. Repeat Steps 5, 6, and 7 for Sensor 2 using 4 Sensor 2 Setup.

HART Fast Keys 1, 3, 3, 4

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Model 3144P

10. From the Home screen, select 1 Device Setup, 3 Configuration, 3 Dual

Sensor Configuration, 4 Configure Hot Backup to prepare to configure

the transmitter for Hot Backup.

11. Select yes to enable Hot Backup.

12. Select OK after you set the control loop to manual.

13. Select 1 Average or 2 First Good to set Hot Backup PV.

14. Select OK after you return the control loop to automatic control.

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

see “Use with the HART Tri-Loop” on page 3-24.

AMS

For AMS, configure each sensor as indicated above.

Right click on the device and select “Configuration.” Select “Configure Hot

Backup.” The wizard will walk through the screens.

Drift Alert Configuration

The Drift Alert command allows the user to configure the transmitter to set

a warning flag (via 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 Drift Alert

mode is enabled, the user will set the maximum allowable difference, in

engineering units, between Sensor 1 and Sensor 2. If this maximum

difference is exceeded, a drift alert warning flag will be set.

When configuring the transmitter for 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

The Drift Alert alarm cannot be enabled while Hot Backup is enabled. The

Drift Alert warning, however, can be used simultaneously with Hot Backup.

For information on configuring the transmitter for Hot Backup see page 3-12.

To set up and enable the Drift Alert feature of the Model 3144P, perform

the following procedure:

1. Attach any two sensors to the transmitter as shown in Figure 2-12 on

page 2-16.

2. From the Home screen, select 1 Device Setup, 3 Configuration, 1

Variable Mapping, 5 Variable Re-map to set primary, secondary, tertiary,

and quaternary variables. The communicator displays the PV, SV, TV,

and QV menus in succession.

3. Select primary, secondary, tertiary, and quaternary variables as desired.

4. Select OK after verifying the variable settings from the Variable Mapping

menu.

HART Fast Keys 1, 3, 3, 5

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Model 3144P

5. Select OK to return the control loop to automatic control. Select HOME

to return to the Home screen.

6. From the Home screen, select 1 Device Setup, 3 Configuration, 2

Sensor Configuration, 1 Change Type and Conn, 3 Sensor 1 Setup to

configure Sensor 1.

7. Set the sensor type, number of wires, damping, and units for Sensor 1.

8. Select SEND to download the new data to the transmitter. Select HOME

to return to the Home screen.

9. Repeat steps 6 – 8 for Sensor 2 using 4 Sensor 2 setup.

10. From the Home screen select 1 Device Setup, 3 Configuration, 3

Dual-Sensor Configuration, 5 Drift Alert to prepare to configure the

transmitter for Drift Alert.

11. Select 2 Drift Limit. Enter the maximum acceptable difference between

Sensor 1 and Sensor 2.

12. Select 3 Drift Damping to enter a drift alert damping value. This value

must be between 0 and 32 seconds.

13. Select 1 Drift Alert Option and select Enable Alarm or Warning only.

14. Select SEND to download the alarm setting to the transmitters.

NOTE

Enabling Drift Alert Option Warning only (Step 13) will set a flag (via HART)

whenever the maximum acceptable difference between Sensor 1 and Sensor

2 has been exceeded. If it is desired for the the transmitter’s analog signal to

go into alarm when Drift Alert is detected, select Alarm in Step 13. The Drift

Alert alarm cannot be enabled when Hot Backup is enabled; The Drift Alert

alarm can only be enabled if Hot Backup is disabled.

AMS

For AMS, configure each sensor as indicated above.

Right click on the device and select “Configuration Properties” from the

menu. Select the Dual Sensor tab to configure the Senosr Drift Alert. In the

Drift Alert box, enable the Drift Alert Option. Enter the DrftLm limit and

define the Drift Limit Units. Set damping if applicable.

Apply changes made (see “Apply AMS Changes” on page 3-5).

DEVICE OUTPUT

CONFIGURATION

Device output configuration contains PV range values, alarm and saturation,

HART output, and LCD meter options.

PV Range Values

The PV URV and PV LRV commands, found in the PV Range Values menu

screen, allow the user to set the transmitter’s lower and upper range values

using limits of expected readings. See Table A-2 on page A-5 for unit and

range setting limits. The range of expected readings is defined by the Lower

Range Value (LRV) and Upper Range Value (URV). The transmitter range

values may be reset as often as necessary to reflect changing process

conditions. From the PV Range Values screen select 1 PV LRV to change the

lower range value and 2 PV URV to change the upper range value.

HART Fast Keys 1, 3, 4, 1

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Reranging the transmitter sets the measurement range to the limits of the

expected readings. Setting the measurement range to these limits maximizes

transmitter performance; the transmitter is most accurate when operated

within the expected temperature range for the application.

The rerange functions should not be confused with the trim function. Although

reranging the transmitter matches a sensor input to a 4-20 mA output, as in

conventional calibration, it does not affect the transmitter’s interpretation of

the input.

AMS

Right click on the device and select “Configuration Properties” from the

menu. Select the Analog Output tab to define the upper and lower range

values. From the Analog Input Range box, enter the URV and LRV.

Apply changes made (see “Apply AMS Changes” on page 3-5).

Process Variable Damping

The PV Damp command changes the response time of the transmitter to

smooth variations in output readings caused by rapid changes in input.

Determine the appropriate damping setting based on the necessary response

time, signal stability, and other requirements of the loop dynamics of the

system. The default damping value is 5.0 seconds and can be reset to any

value between 0 and 32 seconds.

The value chosen for damping affects the response time of the transmitter.

When set to zero (i.e., disabled), the damping function is off and the

transmitter output reacts to changes in input as quickly as the intermittent

sensor algorithm allows. Increasing the damping value increases transmitter

response time.

When damping is enabled, the transmitter will output a value at time (t)

according to the following equation:

Output(t) = Input(ts) – De(–t/damping)

D = input step change at time t = 0

At the time to which the damping time constant is set, the transmitter output is

at 63 percent of the input change; it continues to approach the input according

to the damping equation above.

For example, as illustrated in Figure 3-2, if the temperature undergoes a step

change—from 100 degrees to 110 degrees, and the damping is set to 5.0

seconds, at 5.0 seconds, the transmitter outputs 106.3 degrees, or 63 percent

of the input change, and the output continues to approach the input curve

according to the equation above..

HART Fast Keys 1, 3, 4, 1, 3

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Figure 3-2. Change in Input

versus Change in Output with

Damping Enabled.

AMS

Right click on the device and select “Configuration Properties” from the

menu. If Sensor 1 is mapped as your primary variable, select the Sensor 1

tab.

• Snr1 damp

Apply changes made (see “Apply AMS Changes” on page 3-5).

Alarm and Saturation

The Alarm/Saturation command allows the user to view the alarm settings (Hi

or Low). With this command it is also possible to change the alarm and

saturation values. To change the alarm values and saturation values, select

the value to be changed, either 1 Low Alarm, 2 High Alarm, 3 Low Sat., 4 High

Sat, or 5 Preset Alarms. Enter the desired new value. It must fall within the

guidelines given below.

• The low alarm value must be between 3.50 and 3.75 mA

• The high alarm value must be between 21.0 and 23.0 mA

The low saturation level must be between the low alarm value plus 0.1 mA

and 3.9 mA.

Example: The low alarm value has been set to 3.7 mA. Therefore, the low

saturation level, S, must be as follows:

3.8 ≤ S ≤ 3.9 mA.

The high saturation level must be between 20.5 mA and the high alarm value

minus 0.1 mA.

Example: The high alarm value has been set to 20.8 mA. Therefore, the low

saturation level, S, must be as follows:

20.5 ≤ S ≤ 20.7 mA.

Preset alarms can either be 1 Rosemount or 2 NAMUR-compliant. Use the

failure mode switch on the front side of the electronics (see “Switch Location”

on page A-7) to set whether the output will be driven to high or low alarm in

the case of failure.

HART Fast Keys 1, 3, 4, 2

100.0

101.0

102.0

103.0

104.0

105.0

106.0

107.0

108.0

109.0

110.0

0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0

Input Value

Output Value

Time (Seconds)

Temperature

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AMS

For AMS, configure each sensor as indicated above.

Right click on the device and select “Configuration Properties” from the

menu. Select the Analog Ouput tab to define the alarm and saturation

levels. From the Alarm box, enter the low and high alarm and the low and

high saturation.

Apply changes made (see “Apply AMS Changes” on page 3-5).

To preset to Rosemount standard or NAMUR NE43 comliant levels:

Right-click on the device and select “Configuration.” Select “Alarm

Configuration” then select “Alarm Configuration” then “Preset alarm

levels.” The wizard will walk through the configuration.

HART Output

The HART Output command allows the user to make changes to the

multidrop address, initiate burst mode, or make changes to the burst options.

AMS

Right click on the device and select “Configuration Properties” from the

menu. Select the HART tab to configure for mulidrop and Burst Mode.

Apply changes made (see “Apply AMS Changes” on page 3-5).

LCD Meter Options

The LCD Meter Option command sets the meter options, including

engineering units and decimal point. Change the LCD meter settings to reflect

necessary configuration parameters when adding a LCD meter or

reconfiguring the transmitter. Transmitters without LCD meters are shipped

with the meter configuration set to “Not Used.”

To customize variables that the LCD meter displays, follow the steps below:

1. From the home screen select 1 Device Setup, 3 Configuration, 4Dev

Output Config, 4 LCD Meter Options, and 1 Meter Config.

2. Select the appropriate variable configuration from the Meter

Configuration screen.

3. Press F4, ENTER, and then F2, SEND, to send the information to the

transmitter. The LCD meter will scroll through the outputs selected in

step 2.

To change the decimal point configuration, perform the following steps:

1. From the home screen select 1 Device Setup, 3 Configuration, 4Dev

Output Config, 4 LCD Meter Options, and 2 Meter Decimal Pt.

2. Choose from Floating Precision or One-, Two-, Three-, or Four-Digit

Precision by pressing F4, ENTER. Press F2 to send the information to

the transmitter.

To change the meter bar graph, perform the following steps:

1. From the home screen, select 1 Device Setup, 3 Configuration, 4 Dev

Output Configuration, 4 LCD Meter options, 3 Meter bar graph.

HART Fast Keys 1, 3, 4, 3

HART Fast Keys 1, 3, 4, 4

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2. Choose from Bar Graph offer, Bar graph on by pressing F4, Enter. Press

F2 to send the information to the transmitter.

AMS

Right click on the device and select “Configuration Properties” from the

menu. Select the Device tab to configure the LCD. From the LCD Meter

box, define the Meter Config, Meter Decimal Pt, and Meter Bar Graph.

Apply changes made (see “Apply AMS Changes” on page 3-5).

DEVICE INFORMATION Access the transmitter information variables online using the HART

Communicator or other suitable communications device. The following is a list

of transmitter information variables. These variables include device identifiers,

factory-set configuration variables, and other information. A description of

each variable, the corresponding fast key sequence, and a review of its

purposes are provided.

Tag

The Tag variable is the easiest way to identify and distinguish between

transmitters in multi-transmitter environments. Use it to label transmitters

electronically according to the requirements of the application. The defined

tag is automatically displayed when a HART-based communicator establishes

contact with the transmitter at power-up. The tag may be up to eight

characters long and has no impact on the primary variable readings of the

transmitter.

Date

The Date command is a user-defined variable that provides a place to save

the date of the last revision of configuration information. It has no impact on

the operation of the transmitter or the HART-based communicator.

Descriptor

The Descriptor variable provides a longer user-defined electronic label to

assist with more specific transmitter identification than is available with the tag

variable. The descriptor may be up to 16 characters long and has no impact

on the operation of the transmitter or the HART-based communicator.

Message

The Message variable provides the most specific user-defined means for

identifying individual transmitters in multi-transmitter environments. It allows

for 32 characters of information and is stored with the other configuration

data. The message variable has no impact on the operation of the transmitter

or the HART-based communicator.

AMS

Right click on the device and select “Configuration Properties” from the

menu. Select the Device tab to enter alpahnumeric device information.

Apply changes made (see “Apply AMS Changes” on page 3-5).

HART Fast Keys 1, 3, 5, 1

HART Fast Keys 1, 3, 5, 2

HART Fast Keys 1, 3, 5, 3

HART Fast Keys 1, 3, 5, 4

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Model 3144P

MEASUREMENT

FILTERING

50/60 Hz Filter

The 50/60 Hz Filter command sets the transmitter electronic filter to reject the

frequency of the ac power supply in the plant. The 60 Hz normal, 50 Hz

normal, 60 Hz fast, and 50 Hz fast modes can be chosen (normal mode is the

default mode). On software release 5.3.4, the fast mode cannot be enabled. If

fast mode is selected it will display the normal mode.

NOTE

In high noise environments, normal mode is recommended.

Master Reset

Master Reset resets the electronics without actually powering down the unit. It

does not return the transmitter to the original factory configuration.

AMS

Right click on the device and select “Diagnostics and Calibration” from the

menu. Choose “test,” then “Master Reset.”

The wizard will perform the reset

Intermittent Sensor Detect

The following steps indicate how to turn the Intermittent Sensor Detect feature

ON or OFF. When the transmitter is connected to a Model 275 HART

Communicator, use the fast key sequence and choose ON or OFF (ON is the

normal setting).

AMS

Right click on the device and select “Configuration Properties” from the

menu. Select the Electronics tab. From the Measurement Filtering Box,

configure the Intermit detect.

The wizard will perform the reset

Apply changes made (see “Apply AMS Changes” on page 3-5).

Intermittent Threshold

The threshold value can be changed from the default value of 0.2%. Turning

the Intermittent Sensor Detect feature OFF or leaving it ON and increasing

the threshold value above the default does not affect the time needed for the

transmitter to output the correct alarm signal after detecting a true open

sensor condition. However, the transmitter may briefly output a false

temperature reading for up to one update in either direction (see Figure 3-4 on

page 3-23) up to the threshold value (100% of sensor limits if Intermittent

Sensor Detect is OFF). Unless rapid response rate is necessary, the

suggested setting of the Intermittent Sensor Detect mechanism is ON with

0.2% threshold.

HART Fast Keys 1, 3, 6, 1

HART Fast Keys 1, 2, 1, 3

HART Fast Keys 1, 3, 6, 2

HART Fast Keys 1, 3, 6, 3

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Figure 3-3. Open

Sensor Response

Intermittent Sensor Detect (Advanced Feature)

The Intermittent Sensor Detect feature is designed to guard against process

temperature readings caused by intermittent open sensor conditions (an

intermittent sensor condition is an open sensor condition that lasts less than

one update). By default, the transmitter is shipped with the Intermittent Sensor

Detect feature switched ON and the threshold value set at 0.2% of sensor

limits. The Intermittent Sensor Detect feature can be switched ON or OFF and

the threshold value can be changed to any value between 0 and 100% of the

sensor limits with a HART communicator.

Transmitter Behavior with Intermittent Sensor Detect ON

When the Intermittent Sensor Detect feature is switched ON, the transmitter

can eliminate the output pulse caused by intermittent open sensor conditions.

Process temperature changes (∆T) within the threshold value will be tracked

normally by the transmitter’s output. A ∆T greater than the threshold value will

activate the intermittent sensor algorithm. True open sensor conditions will

cause the transmitter to go into alarm.

The threshold value of the Model 3144P should be set at a level that allows

the normal range of process temperature fluctuations; too high and the

algorithm will not be able to filter out intermittent conditions; too low and the

algorithm will be activated unnecessarily. The default threshold value is 0.2%

of the sensor limits.

Transmitter Behavior with Intermittent Sensor Detect OFF

When the Intermittent Sensor Detect feature is switched OFF, the transmitter

tracks all process temperature changes, even if they are the consequence of

an intermittent sensor. (The transmitter in effect behaves as though the

threshold value had been set at 100%.) The output delay due to the

intermittent sensor algorithm will be eliminated.

AMS

Right click on the device and select “Configuration Properties” from the

menu. Select the Electronics tab. From the Measurement Filtering Box,

configure the Intermit threshold.

Apply changes made (see “Apply AMS Changes” on page 3-5).

0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6

Transmitter Output (mA)

Time (seconds)

When Intermittent Sensor Detect is

OFF, a false temperature output is

possible when an open sensor

condition is detected. A false

temperature output in either direction

up to the threshold value (100 % of

sensor limits if Intermittent Sensor

Detect is OFF) is possible when an

open sensor condition is detected.

Normal open sensor responses

High Alarm

644-644_03

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Model 3144P

Open Sensor Holdoff

The Open Sensor Holdoff option, at the normal setting, enables the Model

3144P to be more robust under heavy EMI conditions. This is accomplished

through the software by having the transmitter perform additional verification

of the open sensor status prior to activating the transmitter alarm. If the

additional verification shows that the open sensor condition is not valid, the

transmitter will not go into alarm.

For users of the Model 3144P that desire a more vigorous open sensor

detection, the Open Sensor Holdoff option can be changed to a fast setting.

With this setting, the transmitter will report an open sensor condition without

additional verification of the open condition.

AMS

Right click on the device and select “Configuration Properties” from the

menu. Select the Electronics tab. From the Measurement Filtering Box

box, configure the Open Snsr Holdoff.

Apply changes made (see “Apply AMS Changes” on page 3-5).

DIAGNOSTICS AND

SERVICE

Test Device

The Test Device command initiates a more extensive diagnostics routine than

that performed continuously by the transmitter. The Test Device menu lists

the following options:

•1 Loop test verifies the output of the transmitter, the integrity of the

loop, and the operations of any recorders or similar devices installed in

the loop. The ability to simulate an alarm is also available. See “Loop

Test” below for more information.

•2 Self Test initiates a transmitter self test. Error codes are displayed if

there is a problem.

•3 Master Reset sends out a command that restarts and tests the

transmitter. A master reset is like briefly powering down the transmitter.

Configuration data remains unchanged after a master reset.

•4 Status lists error codes. ON indicates a problem, and OFF means

there are no problems.

AMS

Right click and select “Diagnostics and Calibration.” Choose “Test” and

select “loop test,” “self test,” or “master reset.” Right-click on device and

choose “status” to view errors.

HART Fast Keys 1, 3, 6, 4

HART Fast Keys 1, 2, 1

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Model 3144P

Loop Test

The Loop Test command verifies the output of the transmitter, the integrity of

the loop, and the operations of any recorders or similar devices installed in the

loop. To initiate a loop test, perform the following procedure:

1. Connect an external ampere meter to the transmitter. To do so, shunt

the power to the transmitter through the meter at some point in the loop.

2. From the HOME screen, select 1 Device Setup, 2 Diag/Serv, 1 Test

Device, 1 Loop Test before performing a loop test. Select OK after you

set the control loop to manual. The communicator displays the loop test

menu.

3. Select a discreet milliampere level for the transmitter to output. At the

CHOOSE ANALOG OUTPUT prompt, select 1 4mA, 2 20mA, or select

4Other to manually input a value between 4 and 20 milliamperes. Select

Enter. It will indicate the fixed output. Select OK.

4. Check the installed transmitter in the test loop to verify that it reads the

value that it was commanded to output. If the readings do not match,

either the transmitter requires an output trim or the current meter is

malfunctioning.

After completing the test procedure, the display returns to the loop test screen

and allows the user to choose another output value. To end the Loop Test,

Select 5 End and Enter. The Test device screen will appear.

The transmitter can simulate alarm conditions based on the transmitter’s

current hardware and software alarm configurations.

To initiate Simulation Alarm, perform the following procedure:

1. From the Home screen, select 1 Device Setup, 2 Diag/Serv, 1 Test

Device, 1 Loop Test, 3 Simulate Alarm.

2. Based on the choosen alarm conditions, the transmitter will display an

alarm.

3. To return the transmitter to normal conditions, select 5 End.

AMS

Right click and select “Diagnostics and Calibration.” Choose “Test” and

select “Loop Test.” The loop test wizard will walk through the process to fix

the output for either sensor 1 or 2.

The trasmitter must be returned to normal conditions (turn off loop test)

before placing back in process

Right click and select “Diagnostics and Calibration.” Choose “Test” and

select “Loop Test.” The loop test wizard will walk through the process to fix

the analog output. From the loop test wizard screen choose “END.” A

message will apppear indicating that it is OK to return to normal.

HART Fast Keys 1, 2, 1, 1

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Model 3144P

MULTIDROP

COMMUNICATION

Multidropping refers to the connection of several transmitters to a single

communications transmission line. Communication between the host and the

transmitters takes place digitally with the analog output of the transmitters

deactivated. Many of the Rosemount SMART FAMILY® transmitters can be

multidropped. With the HART communications protocol, up to 15 transmitters

can be connected on a single twisted pair of wires or over leased phone lines.

The application of a multidrop installation requires consideration of the update

rate necessary from each transmitter, the combination of transmitter models,

and the length of the transmission line. Each transmitter is identified by a

unique address (1–15) and responds to the commands defined in the HART

protocol.

Figure 3-4. Typical Multidropped

Network

Figure 3-4 shows a typical multidrop network. Do not use this figure as an

installation diagram. Contact Emerson Process Management product support

with specific requirements for multidrop applications.

A HART-based communicator can test, configure, and format a multidropped

Model 3144P transmitter the same as in a standard point-to-point installation.

NOTE

The Model 3144P is set to address 0 at the factory, allowing it to operate in

the standard point-to-point manner with a 4–20 mA output signal. To activate

multidrop communication, the transmitter address must be changed to a

number between 1 and 15. This change deactivates the 4–20 mA analog

output, sending it to 4 mA. The failure mode current also is disabled.

AMS

Right click and select “Configuration Properties” from the menu screen.

Select the “HART” tab. From here, assign the polling address.

Power Supply

Impedance

Handheld Terminal

Computer or DCS

Model 3144P HART

transmitter

4–20 mA HART Interface

250 Ω

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Model 3144P

USE WITH THE HART

TRI-LOOP

To prepare the Model 3144P transmitter with dual-sensor option for use with a

Model 333 HART Tri-Loop, you must configure the transmitter to Burst Mode

and set the process variable output order. In Burst Mode, the transmitter

provides digital information for the four process variables to the HART

Tri-Loop. The HART Tri-Loop divides the signal into separate 4–20 mA loops

for up to three of the following choices:

• primary variable (PV)

• secondary variable (SV)

• tertiary variable (TV)

• quaternary variable (QV)

When using the Model 3144P transmitter with dual-sensor option in

conjunction with the HART Tri-Loop, consider the configuration of the

differential, average, first good temperatures, Sensor Drift Alert, and Hot

Backup features (if applicable).

NOTE

These procedures assume that the sensors and the transmitter are

connected, powered, and functioning properly, and that a Model 275 HART

Communicator is connected to the transmitter control loop and is

communicating successfully. For communicator usage instructions, see

“Commissioning” on page 2-2.

Set the Transmitter to Burst Mode

To set the transmitter to burst mode, follow the steps below.

1. From the Home screen, select 1 Device setup, 3 Configuration, 4 Device

output configuration, 3 HART output, 4 Burst option to prepare to set the

transmitter to burst command 3. The communicator displays the Burst

option screen.

2. Select Process vars/current. The communicator returns to the HART

output screen.

3. Select 3Burst mode to prepare to enable Burst Mode. The

communicator displays the Burst Mode screen.

4. Select On to enable Burst Mode. The communicator returns to the HART

output screen.

5. Select Send to download the new configuration information to the

transmitter.

Set Process Variable Output Order

To set the process variable output order, follow the steps below.

1. From the Home screen, select 1 Device setup, 3 Configuration,

1 Variable Mapping, 5 Variable Remapping. Select OK to set the control

loop to manual. The communicator displays the Primary Variable screen.

2. Select the item to be set as the primary variable at the Select PV prompt.

3. Repeat step 2 for the SV, TV, and QV. The communicator displays the

Variable mapping screen.

4. Select OK to accept the order to which the variables are mapped, or

Abort to abort the entire procedure.

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NOTE

Take careful note of the process variable output order. You must configure the

HART Tri-Loop to read the variables in the same order.

5. Select OK to return the control loop to automatic control.

AMS

Right click and select “Configuration” from the menu screen. Select “Set

Variable Mapping” . The “Set Variable Mapping wizard” will go through the

mapping procedure.

Special Considerations

To initiate operation between a Model 3144P transmitter with dual-sensor

option and the HART Tri-Loop, consider the configuration of both the

differential, average, first good temperatures, Sensor Drift Alert, and Hot

Backup features (if applicable).

Differential Temperature Measurement

To enable the differential temperature measurement feature of a

dual-sensor Model 3144P operating in conjunction with the HART

Tri-Loop, adjust the range end points of the corresponding channel on the

HART Tri-Loop to include zero. For example, if the secondary variable of

the transmitter is to report the differential temperature, configure the

transmitter accordingly (see “Set Process Variable Output Order” on

page 3-24) and adjust the corresponding channel of the HART Tri-Loop so

one range end point is negative and the other is positive.

Hot Backup

To enable the Hot Backup feature of a Model 3144P transmitter with

dual-sensor option operating in conjunction with the HART Tri-Loop,

ensure that the output units of the sensors are the same as the units of the

HART Tri-Loop. Use any combination of RTDs or thermocouples as long

as the units of both match the units of the HART Tri-Loop.

Using the Tri-Loop to Detect Sensor Drift Alert

The dual-sensor Model 3144P transmitter sets a failure flag (via HART)

whenever a sensor failure occurs. If an analog warning is required, the HART

Tri-Loop can be configured to produce an analog signal that can be

interpreted by the control system as a sensor failure.

Use these steps to set up the HART Tri-Loop to transmit sensor failure alerts.

1. Configure the dual-sensor Model 3144P variable map as shown .

2. Configure Channel 1 of the HART Tri-Loop as TV (differential

temperature). If either sensor should fail, the differential temperature

output will be +9999 or –9999 (high or low saturation), depending on the

position of the Failure Mode Switch (see “Failure Mode and Security

Switch Locations” on page 2-5).

Variable Mapping

PV Sensor 1 or Sensor Average

SV Sensor 2

TV Differential Temperature

QV As Desired

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3. Select temperature units for Channel 1 that match the differential

temperature units of the transmitter.

4. Specify a range for the TV such as –100 to 100 °C. If the range is large,

then a sensor drift of a few degrees will represent only a small percent of

range. If Sensor 1 or Sensor 2 fails, the TV will be +9999 (high

saturation) or –9999 (low saturation). In this example, zero is the

midpoint of the TV range. If a ∆T of zero is set as the lower range limit

(4 mA), then the output could saturate low if the reading from Sensor 2

exceeds the reading from Sensor 1. By placing zero in the middle of the

range, the output will normally stay near 12 mA, and the problem will be

avoided.

5. Configure the DCS so that TV <–100 °C or TV >100 °C indicates a

sensor failure and, for example, TV ≤–3 °C or TV ≥3 °C indicates a drift

alert. See Figure 3-5.

Figure 3-5. Tracking Sensor Drift

and Sensor Failure with

Differential Temperature

3 °C

0 °C

–3 °C

100 °C

Sensor Drift

Sensor Failure

(Failure Mode Switch HI)

DIFFERENTIAL

TEMPERATURE

Sensor Failure

(Failure Mode Switch LO)

–100 °C

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April 2003 Model 3144P

www.rosemount.com

Section 4 Operation and Maintenance

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-1

Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-2

Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-9

Assembling the Electronics Housing . . . . . . . . . . . . . . . . page 4-13

Model 275 HART Communicator . . . . . . . . . . . . . . . . . . . . page 4-17

AMS Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-20

AMS Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-20

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.

Warning

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 HART 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 transmitter 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.

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.

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Model 3144P

4-2

CALIBRATION Calibrating the transmitter increases the precision of your measurement

system. The user may use one or more of a number of trim functions when

calibrating. To understand the trim functions, it is necessary to understand

that smart transmitters operate differently from analog transmitters. An

important difference is that smart transmitters are factory-characterized; they

are shipped with a standard sensor curve stored in the transmitter firmware.

In operation, the transmitter uses this information to produce a process

variable output, dependent on the sensor input. The trim functions allow the

user to make adjustments to the factory-stored characterization curve by

digitally altering the transmitter’s interpretation of the sensor input.

Calibration of the Model 3144P may include the following procedures:

• Sensor Input Trim: digitally alter the transmitter’s interpretation of the

input signal

• Transmitter Sensor Matching: generates a special custom curve to

match that specific sensor curve, as derived from the Callendar-Van

Dusen constants

• Output Trim: calibrates the transmitter to a 4–20 mA reference scale

• Scaled Output Trim: calibrates the transmitter to a user-selectable

reference scale.

Trim the Transmitter The trim functions should not be confused with the rerange functions.

Although the rerange command matches a sensor input to a 4–20 mA

output—as in conventional calibration—it does not affect the transmitter’s

interpretation of the input.

One or more of the trim functions may be used when calibrating. The trim

functions are as follows

• Sensor Input Trim

• Transmitter Sensor Matching

• Output Trim

• Output Scaled Trim

Sensor Input Trim

The Sensor Trim command allows the user to digitally alter the transmitter’s

interpretation of the input signal as shown in Figure 4-1 on page 4-3. The

sensor trim command trims, in engineering (°F, °C, °R, K) or raw (Ω, mV)

units, the combined sensor and transmitter system to a site standard using a

known temperature source. Sensor trim is suitable for validation procedures

or for applications that require profiling the sensor and transmitter together.

Perform a sensor trim if the transmitters digital value for the primary variable

does not match the plant’s standard calibration equipment. The sensor trim

function calibrates the sensor to the transmitter in temperature units or raw

units. Unless the site-standard input source is NIST-traceable, the trim

functions will not maintain the NIST-traceability of your system

HART Fast Keys 1, 2, 2, 1, 1

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Model 3144P

Figure 4-1. Trim .

To perform a sensor trim, use the following procedure:

Single Sensor Trim

1. Connect the sensor or calibrator device to the transmitter.

2. Connect the communicator to the transmitter loop.

3. From the Home screen, select 1Device Setup, 2 Diag/Service,

2 Calibration, 1Sensor Trim, 1 Sensor Inp Trim to prepare to trim the

sensor. Select 1 Sensor 1.

4. Select Sensor 1.

NOTE

A warning will appear reminding the user to Set the Control Loop to Manual”

(see “Setting the Loop to Manual” on page 2-2.)

5. The communicator will ask “Are you using an active calibrator?”

a. Select “No” if a sensor is connected to the transmitter

b. Select “Yes” if using a calibration device. By selecting yes, the

transmitter will be put into active calibration mode (see “Active

Calibrator and EMF Compensation” on page 4-5). This is critical if

the calibrator requires constant sensor current for calibration. If

using a calibration device that can accept pulsed current, select “No.

6. Select the appropriate sensor trim units at the ENTER SNSR 1 TRIM

UNITS prompt.

7. Select 1 Lower Only, 2 Upper Only or 3 Lower and Upper at the SELECT

SENSOR TRIM POINTS prompt.

8. Adjust the calibration device to the desired trim value (must be within the

selected sensor limits). If trimming a combined sensor and transmitter

system, expose the sensor to a known temperature and allow the

temperature reading to stabilize. Use a bath, furnace or isothermal block,

measured with a site-standard thermometer, as the known temperature

source.

Application: Linear Offset Application: Linear Offset and Slope Correction

Solution: Single-Point Trim Solution: Two-Point Trim

Method:

1. Connect sensor to transmitter. Place

sensor in bath between range points.

2. Enter known bath temperature using

the Model 275 HART Communicator.

Method:

1. Connect sensor to transmitter. Place

sensor in bath at low range point.

2. Enter known bath temperature using the

Model 275 HART Communicator.

3. Repeat at high range point.

One-Point Trim Two-Point Trim

Transmitter System Curve

Site-Standard Curve

Resistance (ohms)

Temperature

Resistance (ohms)

Tem

erature

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9. Select OK once the temperature stabilizes.

10. Enter the lower or upper trim point, depending on your selection in

Step 7.

The trim functions should not be confused with the rerange functions.

Although the rerange command matches a sensor input to a 4–20 mA

output—as in conventional calibration—it does not affect the transmitter’s

interpretation of the input.

Dual Sensor Trim

1. Connect the sensor or calibrator device to the transmitter.

a. When using sensors, connect the two sensors or a dual element

sensor

b. When using a calibrator, connect the device to both sensor inputs.

2. Connect the communicator to the transmitter loop.

3. From the Home screen, select 1Device Setup, 2 Diag/Service,

2 Calibration, 1Sensor Trim, 1 Sensor Inp Trim to prepare to trim the

sensor. Select 1 Sensor 1.

4. The Communicator will prompt the user to select either Sensor 1 or 2.

The sensors can be trimmed in either order, but it is recommended to

trim Sensor 1 first.

NOTE

A warning will appear reminding the user to Set the Control Loop to Manual”

(see “Setting the Loop to Manual” on page 2-2.)

5. The communicator will ask “Are you using an active calibrator?”

a. Select “No” if a sensor is connected to the transmitter

b. Select “Yes” if using a calibration device. By selecting yes, the

transmitter will be put into active calibration mode (see “Active

Calibrator and EMF Compensation” on page 4-5). This is critical if

the calibrator requires constant sensor current for calibration. If

using a calibration device that can accept pulsed current, select “No.

6. Select the appropriate sensor trim units at the ENTER SNSR 1 TRIM

UNITS prompt.

7. Select 1 Lower Only, 2 Upper Only or 3 Lower and Upper at the SELECT

SENSOR TRIM POINTS prompt.

8. Adjust the calibration device to the desired trim value (must be within the

selected sensor limits). If trimming a combined sensor and transmitter

system, expose the sensor to a known temperature and allow the

temperature reading to stabilize. Use a bath, furnace or isothermal block,

measured with a site-standard thermometer, as the known temperature

source.

9. Select OK once the temperature stabilizes.

10. Enter the lower or upper trim point, depending on your selection in

Step 7.

To trim the second sensor, repeat the same procedure only in Step 4, select

the sensor not yet calibrated (usually Sensor 2)

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AMS

For AMS, configure each sensor as indicated above.

Right click on the device and select “Diagnostics and Calibration” from the

menu. Select “Calibrate,” then “Sensor Trim,” then “Sensor Input Trim.”

The wizard will continue through the process.

The transmitter may be restored to the factory default by selecting:

“Diagnostics and Calibration,” “Sensor Trim,” “Revert to Factory Trim.”

The wizard will recall the factory trim for a given sensor

Apply changes made (see “AMS” on page 3-5).

Active Calibrator and EMF Compensation

The transmitter operates with a pulsating sensor current to allow EMF

compensation and detection of open sensor conditions. Because some

calibration equipment requires a steady sensor current to function

properly, the “Active Calibrator Mode” feature should be used when an

Active Calibrator, which requires a constant sensor current, is connected.

Enabling this mode will temporarily set the transmitter to provide steady

sensor current unless two sensor inputs are configured. Disable this mode

before putting the transmitter back into the process. Disabling this mode

will set the transmitter back to pulsating current. “Active Calibrator Mode”

is volatile and will automatically be disabled when a Master Reset is

performed (via HART) or when power is cycled.

EMF compensation allows the transmitter to provide sensor

measurements that are not affected by unwanted voltages, which are

typically due to thermal EMFs in the equipment connected to the

transmitter or by some types of calibration equipment. If this equipment

also requires steady sensor current, the transmitter must be set to “Active

Calibrator Mode.” However, the steady current does not allow the

transmitter to perform EMF compensation. As a result, a difference in

readings between the Active Calibrator and actual sensor may exist.

If a reading difference is experienced and the difference is greater than the

plant’s accuracy specification allows, perform a sensor trim with “Active

Calibrator Mode” disabled. In this case, an active calibrator capable of

tolerating pulsating sensor current must be used or the actual sensors

must be connected to the transmitter. When the Model 275 HART

Communicator or AMS asks if an Active Calibrator is being used when the

sensor trim routine is entered, select No. This will leave the “Active

Calibrator Mode” disabled.

Contact a Emerson Process Management representative for more

information.

Transmitter-Sensor Matching

The Model 3144P accepts Callendar-Van Dusen constants from a calibrated

RTD schedule and generates a special custom curve to match that specific

sensor Resistance vs. Temperature performance. Matching the specific

sensor curve with the transmitter significantly enhances the temperature

measurement accuracy. See the comparison below:

HART Fast Keys 1, 2, 2, 1, 3

HART Fast Keys 1, 3, 2, 1, 1

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The following input constants, included with specially-ordered Rosemount

temperature sensors, are required:

R0 = Resistance at Ice Point

Alpha = Sensor Specific Constant

Beta = Sensor Specific Constant

Delta = Sensor Specific Constant

Other sensor may have “A,B, or C” values for constants.

To input Callendar-Van Dusen constants, perform the following procedure:

1. From the HOME screen, select 1 Device Setup, 3 Configuration, 2

Sensor Config, 1 Change Type/Conn., 1 Sensor 1. Select OK after you

set the control loop to manual.

2. Select Cal VanDusen at the ENTER SENSOR TYPE prompt.

3. Select the appropriate number of wires at the ENTER SENSOR

CONNECTION prompt.

4. Enter the Ro, Alpha, Beta, and Delta values from the stainless steel tag

attached to the special-order sensor when prompted.

5. Select OK after you return the control loop to automatic control.

To disable the transmitter-sensor matching feature from the HOME screen

select 1 Device Setup, 3 Configuration, 2 Sensor Config, 1 Change

Type/Conn. Choose the appropriate sensor type from the ENTER

SENSOR TYPE prompt.

When using two sensors, repeat Steps 1 – 5 for the second sensor. In

Step 1, select Sensor 2 instead of Sensor 1.

NOTE

When you disable transmitter-sensor matching, the transmitter reverts to

factory trim input. Make certain the transmitter engineering units default

correctly before placing the transmitter into service.

Callendar Van-Dusen constants can be viewed anytime by

making the following selections:

From the Home screen select 1 Device Setup, 3 Configuration, 2 Sensor

Config, 2 Show Type/Conn.

AMS

Right click on the device and select “Configuration” from the menu. Select

the “Sensor connections.” Change the Type and Connection.

The wizard will go through the required changes. In the field, select “Cal

VanDusen to enter the sensor type.

System Accuracy Comparison at 150 °C Using a PT 100 (α=0.00385)

RTD with a Span of 0 to 200 °C

Standard RTD Matched RTD

Model 3144P ±0.10 °C Model 3144P ±0.10 °C

Standard RTD ±1.05 °C Matched RTD ±0.18 °C

Tota l S y st e m(1)

(1) Calculated using root-summed-squared (RSS) statistical method

±1.05 °C To ta l System(1) ±0.21 °C

TotalSystemAccuracy TransmitterAccuracy()

2SensorAccuracy()

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D/A Output Trim or Scaled Output Trim

Perform an D/A output trim (scaled output trim) if the digital value for the

primary variable matches the plant standard but the transmitter’s analog

output does not match the digital value on the output device, such as the

ampmeter. The output trim function calibrates the transmitter analog output to

a 4–20 mA reference scale; the scaled output trim function calibrates to a

user-selectable reference scale. To determine the need for an output trim or a

scaled output trim, perform a loop test (see “Loop Test” on page 3-22).

Figure 4-2. Dynamics of Smart

Temperature Measurement

Microprocessor Digital-to-Analog

Signal Conversion

Analog-to-Digital

Signal Conversion

Transmitter Electronics Module

Analog

Input

Analog

Output

HART

Communicator

HART

Output

Sensor and Ohm/mV

Trim adjust the signal here

Output and Scaled Output

Trim adjust the signal here

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Model 3144P

Output Trim

The D/A Trim command allows the user to alter the transmitter’s conversion of

the input signal to a 4–20 mA output (see Figure 4-2 on page 4-7). Calibrate

the analog output signal at regular intervals to maintain measurement

precision. To perform a digital-to-analog trim, perform the following

procedure:

1. From the HOME screen, select 1 Device setup, 2 Diag/Service,

2 Calibration, 2 D/A trim. Set the control loop to manual and select OK.

2. Connect an accurate reference meter to the transmitter at the

CONNECT REFERENCE METER prompt. To do so, shunt the power to

the transmitter through the reference meter at some point in the loop.

Select OK after connecting the reference meter.

3. Select OK at the SETTING FLD DEV OUTPUT TO 4 MA prompt. The

transmitter outputs 4.00 mA.

4. Record the actual value from the reference meter, and enter it at the

ENTER METER VALUE prompt. The communicator prompts the user to

verify if the output value equals the value on the reference meter.

5. If the reference meter value equals the transmitter output value, then

select 1 Yes and go to step 6. If the reference meter value does not equal

the transmitter output value, then select 2 No and go to step 4.

6. Select OK at the SETTING FLD DEV OUTPUT TO 20 MA prompt and

repeat steps 4 and 5 until the reference meter value equals the

transmitter output value.

7. Return the control loop to automatic control and select OK.

AMS

Right click on the device and select “Diagnostics and Calibration” from the

menu. Select the “Calibrate” and choose the “D/A Trim.”

This wizard will go through the required changes.

Scaled Output Trim

The Scaled D/A Trim command matches the 4 and 20 mA points to a

user-selectable reference scale other than 4 and 20 mA (2–10 volts, for

example). To perform a scaled D/A trim, connect an accurate reference meter

to the transmitter and trim the output signal to scale as outlined in the ”Output

Trim” procedure.

AMS

Right click on the device and select “Diagnostics and Calibration” from the

menu. Select the “Calibrate” and choose the “Scaled D/A Trim.”

This wizard will go through the required changes.

HART Fast Keys 1, 2, 2, 2

HART Fast Keys 1, 2, 2, 3

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HARDWARE

Diagnostics with HART

Communicator

If a malfunction is suspected despite the absence of a diagnostics message

on the HART communicator display, follow the procedures described in

Table 4-1 to verify that transmitter hardware and process connections are in

good working order. Under each of four major symptoms, specific suggestions

are offered for solving problems. Always deal with the most likely and

easiest-to-check conditions first.

Table 4-1. Troubleshooting.

SYMPTON

POTENTIAL

SOURCE CORRECTIVE ACTION

Transmitter

Does Not

Communicate

with HART

Communicator

Loop Wiring • Check the revision level of the transmitter device

descriptors (DDs) stored in your communicator. The

communicator should report Dev v3, DD v2

(improved), or Dev v2, DD v1 (previous). Contact

Emerson Process Management Customer Central

for assistance.

• Check for a minimum of 250 ohms resistance

between the power supply and HART communicator

connection.

• Check for adequate voltage to the transmitter. If a

HART communicator is connected and 250 ohms

resistance is properly in the loop, then the

transmitter requires a minimum of 12.0 V at the

terminals to operate (over entire 3.90 to 20.5 mA

operating range), and 17.5 V minimum to

communicate digitally.

• Check for intermittent shorts, open circuits, and

multiple grounds.

High Output Sensor Input

Failure or

Connection

• Connect a HART communicator and enter the

transmitter test mode to isolate a sensor failure.

• Check for a sensor open circuit.

• Check if the process variable is out of range.

Loop Wiring • Check for dirty or defective terminals,

interconnecting pins, or receptacles.

Power Supply • Check the output voltage of the power supply at the

transmitter terminals. It should be 12.0 to 42.4 V dc

(over entire 3.90 to 20.5 mA operating range).

Electronics Module • Connect a HART communicator and enter the

transmitter test mode to isolate module failure.

• Connect a HART communicator and check the

sensor limits to ensure calibration adjustments are

within the sensor range.

Erratic Output Loop wiring • Check for adequate voltage to the transmitter. It

should be 12.0 to 42.4 V dc at the transmitter

terminals (over entire 3.90 to 20.5 mA operating

range).

• Check for intermittent shorts, open circuits, and

multiple grounds.

• Connect a HART communicator and enter the loop

test mode to generate signals of 4 mA, 20 mA, and

user-selected values.

Electronics Module • Connect a HART communicator and enter the

transmitter test mode to isolate module failure.

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Diagnostics with AMS If a malfunction is suspected despite the absence of a diagnostics message,

follow the procedures described in Table 4-2 to verify that transmitter

hardware and process connections are in good working order. Under each of

four major symptoms, specific suggestions are offered for solving problems.

Always deal with the most likely and easiest-to-check conditions first.

Table 4-2. Troubleshooting.

Low Output or

No Output

Sensor Element • Connect a HART communicator and enter the

transmitter test mode to isolate a sensor failure.

• Check if the process variable is out of range.

Loop Wiring • Check for adequate voltage to the transmitter. It

should be 12.0 to 42.4 V dc (over entire 3.90 to 20.5

mA operating range).

• Check for shorts and multiple grounds.

• Check for proper polarity at the signal terminal.

• Check the loop impedance.

• Connect a HART communicator and enter the loop

test mode.

• Check wire insulation to detect possible shorts to

ground.

Electronics Module • Connect a HART communicator and check the sensor

limits to ensure calibration adjustments are within the

sensor range.

• Connect a HART communicator and enter the

transmitter test mode to isolate an electronics

module failure.

SYMPTON

POTENTIAL

SOURCE CORRECTIVE ACTION

SYMPTON

POTENTIAL

SOURCE CORRECTIVE ACTION

Transmitter

Does Not

Communicate

with AMS

Software

Loop Wiring • Check the revision level of the transmitter device

descriptors (DDs) stored in your software. The

communicator should report Dev v3, DD v2

(improved), or Dev v2, DD v1 (previous). Contact

Emerson Process Management Customer Central

for assistance.

• Check for a minimum of 250 ohms resistance

between the power supply and AMS software.

• Check for adequate voltage to the transmitter. If the

AMS software is connected and 250 ohms

resistance is properly in the loop, then the

transmitter requires a minimum of 12.0 V at the

terminals to operate (over entire 3.90 to 20.5 mA

operating range), and 17.5 V minimum to

communicate digitally.

• Check for intermittent shorts, open circuits, and

multiple grounds.

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High Output Sensor Input

Failure or

Connection

• Using AMS, set the transmitter test mode to isolate a

sensor failure.

• Check for a sensor open circuit.

• Check if the process variable is out of range.

Loop Wiring • Check for dirty or defective terminals,

interconnecting pins, or receptacles.

Power Supply • Check the output voltage of the power supply at the

transmitter terminals. It should be 12.0 to 42.4 V dc

(over entire 3.90 to 20.5 mA operating range).

Electronics Module • Using AMS, set the transmitter test mode to isolate

module failure.

• Using AMS, check the sensor limits to ensure

calibration adjustments are within the sensor range.

Erratic Output Loop wiring • Check for adequate voltage to the transmitter. It

should be 12.0 to 42.4 V dc at the transmitter

terminals (over entire 3.90 to 20.5 mA operating

range).

• Check for intermittent shorts, open circuits, and

multiple grounds.

• Using AMS, set the loop test mode to generate

signals of 4 mA, 20 mA, and user-selected values.

Electronics Module • Using AMS, set the transmitter test mode to isolate

module failure.

Low Output or

No Output

Sensor Element • Using AMS, set the transmitter test mode to isolate a

sensor failure.

• Check if the process variable is out of range.

Loop Wiring • Check for adequate voltage to the transmitter. It

should be 12.0 to 42.4 V dc (over entire 3.90 to 20.5

mA operating range).

• Check for shorts and multiple grounds.

• Check for proper polarity at the signal terminal.

• Check the loop impedance.

• Set the loop test mode.

• Check wire insulation to detect possible shorts to

ground.

Electronics Module • Using AMS, check the sensor limits to ensure

calibration adjustments are within the sensor range.

• Using AMS, set the transmitter test mode to isolate an

electronics module failure.

SYMPTON

POTENTIAL

SOURCE CORRECTIVE ACTION

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Maintenance The Model 3144P transmitter has no moving parts and require a minimum

amount of scheduled maintenance. The transmitter features a modular design

for easy maintenance. If a malfunction is suspected, check for an external

cause before performing the diagnostics as discussed in this section.

Test Terminal

The test terminal, marked as TEST or (“T”) on the terminal block, and the

negative (-) terminal accept MINIGRABBER™, or alligator clips, and facilitate

in-process checks (see Figure 2-8 on page 2-10). The test and the negative

terminals are connected across a diode through which the loop signal current

passes. The current measuring equipment shunts the diode when connected

across the test (T) and negative (-) terminals; so as long as the voltage across

the terminals is kept below the diode threshold voltage, no current passes

through the diode. To ensure that there is no leakage current through the

diode while making a test reading, or while an indicating meter is connected,

the resistance of the test connection or meter should not exceed 10 ohms. A

resistance value of 30 ohms will cause an error of approximately 1.0 percent

of reading.

Sensor Checkout

If the sensor is installed in a high-voltage environment and a fault condition or

installation error occurs, the sensor leads and transmitter terminals could

carry lethal voltages. Use extreme caution when making contact with the

leads and terminals.

To determine whether the sensor is at fault, either replace it with another

sensor or connect a test sensor locally at the transmitter to test remote sensor

wiring. Transmitters with Option Code C7 (Trim to Special Sensor), are

matched to a specific sensor. Select any standard, off-the-shelf sensor for use

with the transmitter, or consult the factory for a replacement special

sensor/transmitter combination.

Disassembling the Electronics Housing

The transmitter is designed with a dual-compartment housing; one

compartment contains the electronics module, and the other compartment

contains all wiring terminals and the communication receptacles.

Removing the Electronics Module

The Model 3144P electronics module is located in the compartment opposite

the wiring terminals.

Use the following procedure to remove the electronics module.

NOTE

The electronics are sealed in a moisture-proof plastic enclosure referred to as

the electronics module. The module is a non-repairable unit; The entire unit

must be replaced if a malfunction occurs.

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1. Disconnect the power to the transmitter.

2. Remove the cover from the electronics side of the transmitter housing

(see “ Transmitter Exploded View” on page A-7). Do not remove the

covers in explosive atmospheres when the circuit is live. Remove the

LCD meter, if applicable.

3. Loosen the two screws that anchor the electronics module assembly to

the transmitter housing.

4. Firmly grasp the screws and assembly and pull it straight out of the

housing, taking care not to damage the interconnecting pins.

NOTE

Note the transmitter’s security switch position (ON or OFF) and the failure

mode switch position (LO or HI). If you are replacing the electronics module

with a new one, make sure the security and alarm switch is set in the same

position.

Transmitter Security and Failure Mode Switches

The transmitter security and failure mode switches are located on the front of

the electronics module, as shown in “Switch Location” on page A-7. See

“Mounting and Installation” on page 2-6 for more information.

ASSEMBLING THE

ELECTRONICS

HOUSING

Replacing the

Electronics Module

Use the following procedure to reassemble the electronics housing for the

Model 3144P transmitter:

1. Examine the electronics module to ensure that the failure mode and

transmitter security switches are in the desired positions.

2. Carefully insert the electronics module to mate the interconnecting pins

with the necessary receptacles on the electronics board.

3. Tighten the two mounting screws. Replace the LCD meter, if applicable.

4. Replace the cover. Tighten 1/6 of a revolution after the cover begins to

compress the O-ring. Both transmitter covers must be fully engaged to

meet explosion proof requirements.

LCD Meter Diagnostic

Messages

The LCD meter displays abbreviated diagnostic messages for troubleshooting

the transmitter. To accommodate two-word messages, the display alternates

between the first and second word. Some diagnostic messages have a higher

priority than others, so messages appear according to their priority, with

normal operating messages appearing last. The meter displays messages

simultaneously on the Process Variable and Process Variable Unit lines as

shown in “LCD Meter Faceplate” on page A-7. Messages on the Process

Variable line refer to general device conditions, while messages on the

Process Variable Unit line refer to specific causes for these conditions. A

description of each diagnostic message follows.

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[BLANK]

If the meter does not appear to function, make sure the transmitter is

configured for the meter option you desire. The meter will not function if the

LCD Meter option is set to Not Used.

FAIL -or- HDWR FAIL

This message indicates one of several conditions including:

• The transmitter has experienced an electronics module failure.

• The transmitter self-test has failed.

If diagnostics indicate a failure of the electronics module, replace the

electronics module with a new one. Contact the nearest Emerson Process

Management Field Service Center if necessary.

SNSR 1 FAIL -or- SNSR 2 FAIL

The transmitter has detected an open or shorted sensor condition. The

sensor(s) might be disconnected, connected improperly, or malfunctioning.

Check the sensor connections and sensor continuity.

SNSR 1 SAT -or- SNSR 2 SAT

The temperature sensed by the transmitter exceeds the sensor limits for this

particular sensor type.

HOUSG SAT

The transmitter operating temperature limits (–40 to 185 °F (40 to

85 °C)) have been exceeded.

LOOP FIXED

During a loop test or a 4–20 mA output trim, the analog output defaults to a

fixed value. The Process Variable line of the display alternates between the

amount of current selected in milliamperes and “WARN.” The Process

Variable Unit line toggles between “LOOP,” “FIXED,” and the amount of

current selected in milliamperes.

OFLOW

The location of the decimal point, as configured in the meter setup, is not

compatible with the value to be displayed by the meter. For example, if the

meter is measuring a process temperature greater than 9.9999 degrees, and

the meter decimal point is set to 4 digit precision, the meter will display an

“OFLOW” message because it is only capable of displaying a maximum value

of 9.9999 when set to 4 digit precision.

HOT BU

Hot Backup is enabled and Sensor 1 has failed. This message is displayed on

the Process Variable line and is always accompanied by a more descriptive

message on the Process Variable Unit line. In the case of a Sensor 1 failure

with Hot Backup enabled, for example, the Process Variable line displays

“HOT BU,” and the Process Variable Unit line alternates between “SNSR 1”

and “FAIL.”

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Figure 4-3. Hot Backup Display.

WARN DRIFT ALERT

Drift Alert warning is enabled and the difference between Sensor 1 and

Sensor 2 has exceeded the user-specified limit. One of the sensors may be

malfunctioning. The Process Variable line displays “WARN” and the Process

Variable Unit line alternates between “DRIFT” and “ALERT.”

Figure 4-4. Sensor Drift Alert

Display.

ALARM DRIFT ALERT

The analog output is in alarm. Drift Alert alarm is enabled and the difference

between Sensor 1 and Sensor 2 has exceeded the user-specified limit. The

transmitter is still operating, but one of the sensors may be malfunctioning.

The Process Variable line displays “ALARM” and the Process Variable Unit

line alternates between “DRIFT” and “ALERT.”

ALARM

The digital and analog outputs are in alarm. Possible causes of this condition

include, but are not limited to, an electronics failure or an open sensor. This

message is displayed on the Process Variable line and is always

accompanied by a more descriptive message on the Process Variable Unit

line. In the case of a Sensor 1 failure, for example, the Process Variable line

displays “ALARM,” and the Process Variable Unit line alternates between

“SNSR 1” and “FAIL.”

WARN

The transmitter is still operating, but something is not correct. Possible causes

of this condition include, but are not limited to, an out-of-range sensor, a fixed

loop, or an open sensor condition. In the case of a Sensor 2 failure with Hot

Backup enabled, the Process Variable line displays “WARN,” and the Process

Variable Unit line alternates between “SNSR 2” and “RANGE.”

3144-3144_03A, 03B

3144-3144_03C, 03D

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AMS Screens Diagnostic

Messages

AMS provides advanced diagnostic messages, as well as help screens for the

messages. Using the help screens can provide quick reference to remedying

the situation. The trouble shooting section for this manual can also be pasted

in AMS to assist in quick and accurate troubleshooting reference.

Alarms and Alerts

Right click on the device and select “Process Variables”. This screen shows

the sensor reading and status of the sensor and transmitters. If no alarms or

alerts are activated, the screen will look like this:

Sensor Failure

When the transmitter has detected an open or shorted sensor condition, the

sensor(s) might be disconnected, connected improperly, or malfunctioning.

Check the Sensor connections and continuity. Replace the sensor if

necessary.

By right-clicking on the device and selecting “status,: the status screen

appears. This screen shows an overview of the transmitter health. Red bars

indicate system changes or that the transmitter is not working properly and

should be investigated.

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Model 3144P

Hot BackUp®

Hot Backup is enabled and Sensor 1 or Sensor 2 has failed. The following is

displayed on the Process Variable Screen. The suspect sensor should be

investigated as soon as possible, and replaced as necessary.

Sensor Drift Alert

When the Drift Alert warning or alarm is enable, they indicate that the

differences between Sensor 1 and Sensor 2 has exceeded the user-specified

limit. One of the sensors may be malfunctioning. The sensors should both be

investigated at the earliest opportunity.

MODEL 275 HART

COMMUNICATOR

Diagnostic Messages The following is a list of messages used by the Model 275 HART

Communicator and their corresponding descriptions.

Variable parameters within the text of a message are indicated with <variable

parameter>.

Reference to the name of another message is identified by [another

message].

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Model 3144P

Message Description

Add item for ALL device

types or only for this ONE

device type

Asks the user whether the hot key item being added should be

added for all device types or only for the type of device that is

connected.

Command not implemented The connected device does not support this function.

Communication error Either a device sends back a response indicating that the

message it received was unintelligible, or the HART

Communicator cannot understand the response from the device.

Configuration memory not

compatible with connected

device

The configuration stored in memory is incompatible with the

device to which a transfer has been requested.

Device busy The connected device is busy performing another task.

Device disconnected Device fails to respond to a command.

Device write protected Device is in write-protect mode. Data can not be written.

Device write protected. Do

you still want to shut off?

Device is in write-protect mode. Press YES to turn the HART

Communicator off and lose the unsent data.

Display value of variable on

hot key menu?

Asks whether the value of the variable should be displayed

adjacent to its label on the hot key menu if the item being

added to the hot key menu is a variable.

Download data from

configuration memory

to device

Prompts user to press SEND softkey to initiate a memory to

device transfer.

Exceed field width Indicates that the field width for the current arithmetic variable

exceeds the device-specified description edit format.

Exceed precision Indicates that the precision for the current arithmetic variable

exceeds the device-specified description edit format.

Ignore next 50 occurrences

of status?

Asked after displaying device status. Softkey answer determines

whether next 50 occurrences of device status will be ignored

or displayed.

Illegal character An invalid character for the variable type was entered.

Illegal date The day portion of the date is invalid.

Illegal month The month portion of the date is invalid.

Illegal year The year portion of the date is invalid.

Incomplete exponent The exponent of a scientific notation floating point variable

is incomplete.

Incomplete field The value entered is not complete for the variable type.

Looking for a device Polling for multidropped devices at addresses 1–15.

Mark as read

only variable on

hotkey menu?

Asks whether the user should be allowed to edit the variable from

the hotkey menu if the item being added to the hotkey menu is

a variable.

No device configuration in

configuration memory

There is no configuration saved in memory available to

re-configure off-line or transfer to a device.

No device found Poll of address zero fails to find a device, or poll of all addresses

fails to find a device if auto-poll is enabled.

No hotkey menu available

for this device.

There is no menu named “hotkey” defined in the device

description for this device.

No offline

devices available

There are no device descriptions available to be used to

configure a device offline.

No simulation

devices available

There are no device descriptions available to simulate a device.

No UPLOAD_VARIABLES

in ddl for this device

There is no menu named “upload_variables” defined in the

device description for this device. This menu is required for

offline configuration.

No valid items The selected menu or edit display contains no valid items.

OFF KEY DISABLED Appears when the user attempts to turn the HART

Communicator off before sending modified data or before

completing a method.

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Model 3144P

Online device disconnected

with unsent data. RETRY or

OK to lose data

There is unsent data for a previously connected device. Press

RETRY to send data, or press OK to disconnect and lose

unsent data.

Out of memory for hotkey

configuration. Delete

unnecessary items.

There is no more memory available to store additional hotkey

items. Unnecessary items should be deleted to make space

available.

Overwrite existing

configuration memory

Requests permission to overwrite existing configuration either by

a device-to-memory transfer or by an offline configuration. User

answers using the softkeys.

Press OK Press the OK softkey. This message usually appears after an

error message from the application or as a result of HART

communications.

Restore device value? The edited value that was sent to a device was not properly

implemented. Restoring the device value returns the variable to

its original value.

Save data from device to

configuration memory

Prompts user to press SAVE softkey to initiate a

device-to-memory transfer.

Saving data to

configuration memory

Data is being transferred from a device to configuration memory.

Sending data to device Data is being transferred from configuration memory to a device.

There are write only

variables which have

not been edited.

Please edit them

There are write-only variables that have not been set by the user.

These variables should be set or invalid values may be sent to

the device.

There is unsent data. Send

it before shutting off?

Press YES to send unsent data and turn the HART

Communicator off. Press NO to turn the HART Communicator off

and lose the unsent data.

Too few data

bytes received

Command returns fewer data bytes than expected as determined

by the device description.

Transmitter fault Device returns a command response indicating a fault with the

connected device.

Units for <variable label>

has changed. Unit must be

sent before editing, or

invalid data will be sent.

The engineering units for this variable have been edited. Send

engineering units to the device before editing this variable.

Unsent data to online

device. SEND or

LOSE data

There is unsent data for a previously connected device which

must be sent or thrown away before connecting to another

device.

Use up/down arrows to

change contrast. Press

DONE when done.

Gives direction to change the contrast of the HART

Communicator display.

Value out of range The user-entered value is either not within the range for the given

type and size of variable or not within the min/max specified by

the device.

<message> occurred

reading/writing

Either a read/write command indicates too few data bytes

received, transmitter fault, invalid response code, invalid

response command, invalid reply data field, or failed pre- or

post-read method; or a response code of any class other than

SUCCESS is returned reading a particular variable.

<variable label> has an

unknown value. Unit must

be sent before editing, or

invalid data will be sent.

A variable related to this variable has been edited. Send related

variable to the device before editing this variable.

Message Description

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AMS SOFTWARE

Diagnostic Messages The following is a list of messages used by AMS software. These are

communicated through pop-up menus.

AMS VARIABLES

Message Description

Command not implemented The connected device does not support this function.

Communication error Either a device sends back a response indicating that the

message it received was unintelligible, or the HART

Communicator cannot understand the response from the device.

Device busy The connected device is busy performing another task.

Device disappears from list Device fails to respond to a command.

Device write protected Device is in write-protect mode. Data can not be written.

Illegal character An invalid character for the variable type was entered.

Illegal date The day portion of the date is invalid.

Illegal month The month portion of the date is invalid.

Illegal year The year portion of the date is invalid.

Incomplete exponent The exponent of a scientific notation floating point variable

is incomplete.

Incomplete field The value entered is not complete for the variable type.

Sending data to device Data is being transferred from configuration memory to a device.

There are write only

variables which have

not been edited.

Please edit them

There are write-only variables that have not been set by the user.

These variables should be set or invalid values may be sent to

the device.

There is unsent data. Send

it before shutting off?

Press YES to send unsent data and turn the HART

Communicator off. Press NO to turn the HART Communicator off

and lose the unsent data.

Too few data

bytes received

Command returns fewer data bytes than expected as determined

by the device description.

Transmitter fault Device returns a command response indicating a fault with the

connected device.

Units for <variable label>

has changed. Unit must be

sent before editing, or

invalid data will be sent.

The engineering units for this variable have been edited. Send

engineering units to the device before editing this variable.

Unsent data to online

device. SEND or

LOSE data

There is unsent data for a previously connected device which

must be sent or thrown away before connecting to another

device.

Value out of range The user-entered value is either not within the range for the given

type and size of variable or not within the min/max specified by

the device.

<message> occurred

reading/writing

Either a read/write command indicates too few data bytes

received, transmitter fault, invalid response code, invalid

response command, invalid reply data field, or failed pre- or

post-read method; or a response code of any class other than

SUCCESS is returned reading a particular variable.

<variable label> has an

unknown value. Unit must

be sent before editing, or

invalid data will be sent.

A variable related to this variable has been edited. Send related

variable to the device before editing this variable.

Reference Manual

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April 2003 Model 3144P

www.rosemount.com

Appendix A Specifications and

Reference Data

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-1

Dimensional Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-7

Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-9

Tagging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-10

External Ground Screw Assembly . . . . . . . . . . . . . . . . . . page A-11

Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-11

SPECIFICATIONS

Functional Inputs

User-selectable. See Accuracy Table for sensor options.

Output

2-wire 4–20 mA, linear with temperature or linear with input. Digital output

signal superimposed on 4–20 mA signal, available for HART communicator or

control system interface.

Load Limitations

NOTE

HART Communication requires a loop resistance between 250 and 1100

ohms. Do not communicate with the transmitter when power is below 12 V dc

at the transmitter terminals.

Power Supply

External power supply required. Transmitters operate on 12.0 to 42.4 V dc

transmitter terminal voltage (with 250 ohm load, 18.1 V dc power supply is

required). Transmitter power terminals rated to 42.4 V dc.

Maximum Load = 40.8 X (Supply Voltage - 12.0)

1240

1000

750

250

12.0

20 30 40 42.4

Supply Voltage (V dc)

Operating

Region

4–20 mA dc

Load (Ohms)

500

1100

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A-2

Isolation

Input/output isolation tested up to 500 V rms (707 V dc)

Update Time

Approximately 0.5 seconds for a single sensor (1 second for dual sensors.)

Local Indication

Optional five-digit LCD meter includes 0–100% bar graph. Digits are

0.4 inches (8 mm) high. Display options include engineering units (°F, °C, °R,

K, ohms, and millivolts), percent, and milliamperes. The display can also be

set to alternate between engineering units/milliamperes, Sensor 1/Sensor 2,

Sensor 1/Sensor 2/Differential Temperature, and Sensor 1/Sensor2/Average

Temperature. All display options, including the decimal point, may be

reconfigured in the field using a Model 275 HART Communicator or AMS.

Humidity Limits

0–100% relative humidity

Transient Protection (option code T1)

The transient protector helps to prevent damage to the transmitter from

transients induced on the loop wiring by lightning, welding, heavy electrical

equipment, or switch gears. The transient protection electronics are contained

in an add-on assembly that attaches to the standard transmitter terminal

block. Option code G1 external ground lug assembly is included with the

Transient Protector option code T1.The transient protector has been tested

per the following standard:

• ASME B 16.5 (ANSI)/IEEE C62.41-1991 (IEEE 587)/ Location Categories

A2, B3.

6kV/3kA peak (1.2  50 µS Wave 8  20 µS Combination Wave)

6kV/0.5kA peak (100 kHz Ring Wave)

4kV peak EFT (5  50 µS Electrical Fast Transient)

• Loop resistance added by protector: 22 ohms max.

• Nominal clamping voltages: 90 V (common mode), 77 V (normal mode)

Temperature Limits

Turn-on Time

Performance within specifications less than 5.0 seconds after power is

applied to transmitter

Failure Mode

The Model 3144P features software and hardware failure mode detection. An

independent circuit is designed to provide backup alarm output if the

microprocessor hardware or software fails.

Description Operating Limit Storage Limit

Without LCD Meter –40 to 185 °F

–40 to 85 °C

–60 to 250 °F

–50 to 120 °C

With LCD Meter –4 to 185 °F

–20 to 85 °C

–50 to 185 °F

–45 to 85 °C

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Model 3144P

The alarm levels are user-selectable using the failure mode switch. If failure

occurs, the position of the hardware switch determines the direction in which

the output is driven (HI or LO). The switch feeds into the digital-to-analog

(D/A) converter, which drives the proper alarm output even if the

microprocessor fails. The values at which the transmitter drives its output in

failure mode depends on whether it is configured to standard,

or NAMUR-compliant (NAMUR recommendation NE 43, June 1997)

operation. The values for standard and NAMUR-compliant operation are as

follows:

Table A-1. Operation

Parameters

Custom Alarm and Saturation Levels

Custom factory configurations of alarm and saturation levels are available for

valid values with option code C1. These values can also be configured in the

field using a HART Communicator.

Physical Conduit Connections

The standard field mount housing has ½–14 NPT conduit entries. Additional

conduit entry type are available, including PG13.5 (PG11), M20 X 1.5 (CM20),

or JIS G ½. When an of these additional entry types are ordered, adapters are

placed in the standard field housing so these alternative conduit types fit

correctly. See Dimensional drawings for increased dimensions.

HART Communicator Connections

HART communicator connections are permanently fixed to power/signal

block.

Materials of Construction

Electronics Housing

• Low-copper aluminum or CF-8M (cast version of 316 Stainless Steel)

Paint

• Polyurethane

Cover O-rings

• Buna-N

Weight

Mounting

Transmitters may be attached directly to the sensor. Optional mounting

brackets B4 and B5 permit remote mounting. See “Optional Transmitter

Mounting Brackets” on page A-8.

Standard (1)

(1) Measured in milliamperes

NAMUR-Compliant(1)

Linear Output: 3.9 ≤I ≤ 20.5 3.8 ≤ I ≤ 20.5

Fail High: 21.75 ≤ I ≤ 23 (default) 21.5 ≤ I ≤ 23 (default)

Fail Low: I ≤ 3.75 I ≤ 3.6

Aluminum(1)

(1) Add 0.5 lb (0.2 kg) for meter or 1.0 lb (0.5 kg) for bracket options.

Stainless Steel(1)

3.1 lb (1.4 kg) 7.8 lb (3.5 kg)

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A-4

Enclosure Ratings

NEMA 4X, CSA Enclosure Type 4X, IP66, and IP68

Performance The Model 3144P transmitter maintains a specification conformance of at

least 3 σ.

Stability

• ±0.1% of reading or 0.1 °C, whichever is greater, for 24 months for RTDs

• ±0.1% of reading or 0.1 °C, whichever is greater, for 12 months for

thermocouples

5 Year Stability

• ±0.25% of reading or 0.25 °C, whichever is greater, for 5 years for RTDs

• ±0.5% of reading or 0.5 °C, whichever is greater, for 5 years for

thermocouples.

Vibration Effect

Transmitters tested to the following specifications with no effect on

performance:

Self Calibration

The analog-to-digital measurement circuitry automatically self-calibrates for

each temperature update by comparing the dynamic measurement to

extremely stable and accurate internal reference elements.

Power Supply Effect

Less than ±0.005% of span per volt

RFI Effect

Worst case RFI effect is equivalent to the transmitter’s nominal accuracy

specification, according to Table on page A-5, when tested in accordance

with IEC 61326, 10 V/m, 80 to 1000 MHz, with unshielded cable.

CE Electromagnetic Compatibility Compliance Testing

The Model 3144P meets all requirements listed under IEC 61326:

Amendment 1, 1998.

Frequency Acceleration

10–60 Hz 0.21 mm peak displacement

60–2000 Hz 3 g

Emerson Process Management Conformance to Specifications

A Rosemount product not only meets its published specifications, but most likely exceeds them.

Advanced manufacturing techniques and the use of Statistical Process Control provide specification

conformance to at least ± 3(1). Our commitment to continual improvement ensures that product design,

reliability, and performance will improve annually.

For example, the Reference Accuracy distribution for the Model 3144P is shown to the right. Our

Specification Limits are ± 0.10 °C, but, as the shaded area shows, approximately 68% of the units

perform three times better than the limits. Therefore, it is very likely that you will receive a device that

performs much better than our published specifications.

Conversely, a vendor who “grades” product without using Process Control, or who is not committed to ±

3 performance, will ship a higher percentage of units that are barely within advertised specification

limits. Note: Accuracy distribution shown is for the Model

3144P, PT 100 RTD sensor, Range 0 to 100 °C.

(1) Sigma (σ) is a statistical symbol to designate the standard deviation from the mean value of a normal distribution.

Lower

Specification

Limit

Upper

Specification

Limit

Typical Accuracy

3144-GRAPH

–3σ–2σ–1σ1σ2σ3σ

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Model 3144P

Accuracy

Table A-2. Model 3144P Input Options and Accuracy

Reference Accuracy Example

When using a Pt 100 (α = 0.00385) sensor input with a 0 to 100 °C span:

Digital Accuracy would be ±0.10 °C, D/A accuracy would be ±0.02% of 100 °C

or ±0.02 °C, Total = ±0.12 °C.

Differential Capability Exists Between Any Two Sensor Types

(dual-sensor option)

For all differential configurations, the minimum and maximum input range is

X to +Y where:

• X = Sensor 1 minimum – Sensor 2 maximum

• Y = Sensor 1 maximum – Sensor 2 minimum.

Digital Accuracy for Differential Configurations (dual-sensor option)

• Sensor types are similar (e.g., both RTDs or both T/Cs): Digital Accuracy =

1.5 times worst case accuracy of either sensor type.

• Sensor types are dissimilar (e.g., one RTD, one T/C): Digital Accuracy =

Sensor 1 Accuracy + Sensor 2 Accuracy.

Sensor

Options Sensor Reference Input Ranges

Recommended

Min. Span(1)

Digital

Accuracy(2)

D/A

Accuracy(3)

2-, 3-, 4-wire RTDs °C °F °C °F °C °F

Pt 100 IEC 751, 1995 (α = 0.00385) –200 to 850 –328 to 1562 10 18 ± 0.10 ± 0.18 ±0.02% of span

Pt 100 JIS 1604, 1981 (α = 0.003916) –200 to 645 –328 to 1193 10 18 ± 0.10 ± 0.18 ±0.02% of span

Pt 200 IEC 751, 1995 (α = 0.00385) –200 to 850 –328 to 1562 10 18 ± 0.22 ± 0.40 ±0.02% of span

PT 500 IEC 751, 1995 (α = 0.00385) –200 to 850 –328 to 1562 10 18 ± 0.14 ± 0.25 ±0.02% of span

Pt 1000 IEC 751, 1995 (α = 0.00385) –200 to 300 –328 to 572 10 18 ± 0.10 ± 0.18 ±0.02% of span

Ni 120 Edison Curve No. 7 –70 to 300 –94 to 572 10 18 ± 0.08 ± 0.14 ±0.02% of span

Cu 10 Edison Copper Winding No. 15 –50 to 250 –58 to 482 10 18 ±1.00 ± 1.80 ±0.02% of span

Thermocouples(4)

Type B(5) NIST Monograph 175, IEC 584 100 to 1820 212 to 3308 25 45 ± 0.75 ± 1.35 ±0.02% of span

Type E NIST Monograph 175, IEC 584 –50 to 1000 –58 to 1832 25 45 ± 0.20 ± 0.36 ±0.02% of span

Type J NIST Monograph 175, IEC 584 –180 to 760 –292 to 1400 25 45 ± 0.25 ± 0.45 ±0.02% of span

Type K(6) NIST Monograph 175, IEC 584 –180 to 1372 –292 to 2502 25 45 ± 0.25 ± 0.45 ±0.02% of span

Type N NIST Monograph 175, IEC 584 –200 to 1300 –328 to 2372 25 45 ± 0.40 ± 0.72 ±0.02% of span

Type R NIST Monograph 175, IEC 584 0 to 1768 32 to 3214 25 45 ± 0.60 ± 1.08 ±0.02% of span

Type S NIST Monograph 175, IEC 584 0 to 1768 32 to 3214 25 45 ± 0.50 ± 0.90 ±0.02% of span

Type T NIST Monograph 175, IEC 584 –200 to 400 –328 to 752 25 45 ± 0.25 ± 0.45 ±0.02% of span

DIN Type L DIN 43710 –200 to 900 –328 to 1652 25 45 ± 0.35 ± 0.63 ±0.02% of span

DIN Type U DIN 43710 –200 to 600 –328 to 1112 25 45 ± 0.35 ± 0.63 ±0.02% of span

Type W5Re/

W26Re

ASTM E 988-96 0 to 2000 32 to 3632 25 45 ± 0.70 ± 1.26 ±0.02% of span

Millivolt Input –10 to 100 mV 3 mV ±0.015 mV ±0.02% of span

2-, 3-, 4-wire Ohm Input 0 to 2000 ohms 20 ohm ±0.35 ohm ±0.02% of span

(1) No minimum or maximum span restrictions within the input ranges. Recommended minimum span will hold noise within accuracy specification with

damping at zero seconds.

(2) Digital accuracy: Digital output can be accessed by HART® Communicator.

(3) Total Analog accuracy is the sum of digital and D/A accuracies.

(4) Total digital accuracy for thermocouple measurement: sum of digital accuracy +0.25 °C (0.45 °F) (cold junction accuracy).

(5) Digital accuracy for NIST Type B is ±3.0 °C (±5.4 °F) from 100 to 300 °C (212 to 572 °F.)

(6) Digital accuracy for NIST Type K is ±0.50 °C (±0.9 °F) from –180 to –90 °C (–292 to –130 °F.)

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A-6

Ambient Temperature Effect

Transmitters may be installed in locations where the ambient temperature is

between –40 and 85 °C (–40 and 185 °F).

Each transmitter is individually characterized over this ambient temperature

range at the factory in order to maintain excellent accuracy performance.

The factory characterization technique is accomplished through extreme hot

and cold temperature profiling with individual adjustment factors programmed

into each transmitter. Transmitters automatically adjust for component drift

caused by changing environmental conditions.

Table A-3. Ambient

Temperature Effect

Temperature Effects Example

When using a Pt 100 (α = 0.00385) sensor input with a 0 to 100 °C span at

30 °C ambient temperature, the following statements would be true:

Digital Temp Effects: 0.0015 °C  [(30 – 20)] = 0.015 °C

D/A Effects: [0.001% of 100]  [(30 – 20)] = 0.01 °C

Worst Case Error: Digital + D/A + Digital Temp Effects + D/A Effects = 0.10 °C

+ 0.02 °C + 0.015 °C + 0.01 °C = 0.145 °C

Total Probable Error:

Sensor

Options

Digital Accuracy per 1.0 °C

(1.8 °F) Change in Ambient(1)

(1) Change in ambient is in reference to the calibration temperature of the transmitter (20° C [68° F])

Range

D/A Effect

(% of span)

2-, 3-, or 4- Wire RTDs

Pt 100(2)

(2) α = 0.00385

0.0015 °C Entire Sensor Input Range 0.001%

Pt 100(3)

(3) α = 0.003916

0.0015 °C Entire Sensor Input Range 0.001%

Pt 200 0.0023 °C Entire Sensor Input Range 0.001%

Pt 500 0.0015 °C Entire Sensor Input Range 0.001%

Pt 1000 0.0015 °C Entire Sensor Input Range 0.001%

Ni 120 0.0010 °C Entire Sensor Input Range 0.001%

Cu 10 0.015 °C Entire Sensor Input Range 0.001%

Thermocouples

Type B 0.014 °C

0.029 °C – 0.0021% of (R – 300)

0.046 °C – 0.0086% of (R – 100)

R≥1000 °C

300 °C ≤ R < 1000 °C

100 °C ≤ R < 300 °C

0.001%

Type E 0.004 °C + 0.00043% of R 0.001%

Type J 0.004 °C + 0.00029% of R

0.004 °C + 0.0020% of abs. val. R

R≥ 0 °C

R<0 °C

0.001%

Type K 0.005 °C + 0.00054% of R

0.005 °C + 0.0020% of abs. val. R

R≥0 °C

R< 0 °C

0.001%

Type N 0.005 °C + 0.00036% of R All 0.001%

Types R and S 0.015 °C

0.021 °C – 0.0032% of R

R≥200 °C

R<200 °C

0.001%

Type T 0.005 °C

0.005 °C + 0.00036% of abs. val. R

R≥0 °C

R<0 °C

0.001%

DIN Type L 0.0054 °C + 0.00029% of R

0.0054 °C + 0.0025% of abs. val. R

R≥ 0 °C

R<0 °C

0.001%

DIN Type U 0.0064 °C

0.0064 °C + 0.0043% of abs. val. R

R≥0 °C

R<0 °C

0.001%

Type

W5Re/W26Re

0.016 °C

0.023 °C + 0.0036% of R

R≥200 °C

R<200 °C

0.001%

Millivolt Input 0.00025 mV Entire Sensor Input Range 0.001%

2, 3, or 4-Wire

Ohm Input

0.007 ΩEntire Sensor Input Range 0.001%

0.1020.0220.01520.012

++ + 0.10°C=

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Model 3144P

DIMENSIONAL DRAWINGS

Transmitter Exploded View Switch Location

LCD Meter Faceplate

LCD Meter

Electronics Module

Nameplate

Meter Cover

Cover with Wiring Diagram Label

Housing with

Permanent

Terminal Block

Failure Mode

Security

Diagram of

Switches

Fail Mode

and Security

Switch

2352A01D, 0000A03B

LCD

Connector

4.4 in. (112 mm)

3144-0001B01B,

Transmitter Dimensional Drawing

Top View Side View

Dimensions are in inches (millimeters)

2.0

(51)

4.4

(112)

Label

Conduit Entry Meter Cover 5.2 (132) with LCD Meter

4.4 (112)

4.4

(112)

Conduit Entry

3/8-16 UN-2B

3144-0204B02A, 0000A07A

Reference Manual

00809-0100-4021, Rev BA

April 2003

Model 3144P

A-8

Transmitter Dimensional Drawing for Conduits with

M20 x 1.5, PG 13.5, and JIS G1/2 Entries

Top View Front View

Dimensions are in inches (millimeters)

Optional Transmitter Mounting Brackets

Option Code B4 Bracket

Option Code B5 Bracket

Dimensions are in inches (millimeters)

4.4

(112)

2.0

(50.8)

5.20 (132)

4.40 (112)

0.85 (21.6)*

* Clearance required

to remove cover)

Adapters for M20 x 1.5, PG

13.5, and JIS G1/2 entries

3/8–16

UN–2B

3144-3144A021A, A022A

4.40 (112) 1.17

(29.8)

0.94 (23.8)

0.21 (5.3)

4.00 (102)

0.5

(12.7)

Adapters for M20 x 1.5, PG 13.5, and JIS G1/2 entries

1.04 (26)

1.55 (39)

3.65

±0.06 (92)

1.0 (25)

2.81 ±0.03

(71)

0.41 (10)

Diameter

0.375 (10)

Diameter

(2 Places)

2.0 ± 0.03

(50)

3044-2101A01A; B01B, 3144-3144A14A,

1.0 (25.4)

7.15 (181.6)

2 (51) Diameter Washer

(Provided)

6.4 (162.6)

3144- 1081A01A

2.81 (71.4)

Reference Manual

00809-0100-4021, Rev BA

April 2003

A-9

Model 3144P

ORDERING INFORMATION

Transmitter

Model Product Description

3144P Smart Temperature Transmitter

Code Transmitter Housing Type/Conduit Entry

D1 Field Mount Housing (Dual-Compartment), Aluminum, 1/2–14 NPT

D2 Field Mount Housing (Dual-Compartment), Aluminum, M20 x 1.5 (CM20)

D3 Field Mount Housing (Dual-Compartment), Aluminum, PG 13.5 (PG11)

D4 Field Mount Housing (Dual-Compartment), Aluminum, JIS G 1/2

D5 Field Mount Housing (Dual-Compartment), Stainless Steel, 1/2–14 NPT

D6 Field Mount Housing (Dual-Compartment), Stainless Steel, M20 x 1.5 (CM20)

D7 Field Mount Housing (Dual-Compartment), Stainless Steel, PG 13.5 (PG11)

D8 Field Mount Housing (Dual-Compartment), Stainless Steel, JIS G 1/2

Code Output

A4-20 mA with Digital Signal based on HART protocol

Code Measurement Type Configuration

1Single-Sensor Input

2Dual-Sensor Input

Code Hazardous Locations Certifications

NA No Approval

E5 FM explosion-proof and non-incendive approval

K5 FM intrinsic safety, non-incendive and explosion-proof approval combination

KB FM and CSA intrinsic safety, explosion-proof, and non-incendive approval combination

K6 CSA intrinsic safety, explosion-proof and non-incendive approval combination

E1 CENELEC/Kema flameproof approval

N1 CENELEC/BASEEFA type n approval

I1 CENELEC/BASEEFA intrinsic safety approval

K1 CENELEC intrinsic safety, flameproof and type n combination

ND CENELEC dust ignition proof approval

KA CENELEC/CSA intrinsic safety, explosion-proof combination

E7 SAA flameproof approval

N7 SAA type N approval

I7 SAA intrinsic safety approval

K7 SAA intrinsic safety, flameproof and Type n approval combination

I2 CEPEL intrinsic safety approval

E4 JIS flameproof approval; requires either housing code D4 or D8.

Code Options

Accessory

B4 Universal mounting bracket for 2-inch pipe and panel mounting—SST bracket and bolts

B5 Universal “L” mounting bracket for 2-inch pipe mounting—SST bracket and bolts

M5 LCD meter

G1 External ground lug assembly (See “External Ground Screw Assembly” on page A-11.)

T1 Integral transient protector

Custom Configuration

C1 Factory configuration of date, descriptor, and message fields (CDS required with order)

F5 50 Hz line voltage filter

A1 Analog output levels compliant with NAMUR recommendation NE-43, 27-June-1996, Alarm Configuration-high

CN Analog output levels compliant with NAMUR recommendation NE-43, 27-June-1996, Alarm Configuration-low

C8 Low alarm (standard Rosemount alarm and saturation values)

Calibration

C2 Transmitter-Sensor Matching–Trim to specific Rosemount RTD calibration schedule

C4 5-point calibration (use option code Q4 to generate a calibration certificate)

Q4 Calibration certificate (3-point standard; use C4 with Q4 option for a 5-point calibration certificate)

C7 Trim to special non-standard sensor (special sensor–customer must provide sensor information)

Dual-Input Custom Configuration (only with measurement type option code 2)

U1 Hot Backup

U2 Average temperature with Hot Backup and sensor drift alert

U4 Two independent sensors

U5 Differential temperature

U6 Average temperature

Assembly

X1(1) Assemble transmitter to a sensor assembly (hand tight, Teflon (PTFE) tape where appropriate, fully wired)

X2 Assemble transmitter to a sensor assembly (hand tight, no Tef lon (PTFE) tape, unwired)

X3(1) Assemble transmitter to a sensor assembly (wrench tight, Teflon (PTFE) tape where appropriate, fully wired)

Special Certifications

QS Quality Certification for Safety Instrumented Systems

Typical Model Number: 3144P D1 A 1 E5 B4 M5

(1) If ordering X1, X2, or X3 options, specify the same code in the sensor model number. Option codes X1 and X3 are not available with CSA approval.

Reference Manual

00809-0100-4021, Rev BA

April 2003

Model 3144P

A-10

Spare Parts List

TAGGING

Hardware • No charge

• 2 lines of 28 characters (56 characters total)

• Tags are stainless steel

• Permanently attached to transmitter

• Character height is 1/16-in. (1.6mm)

• A wire-on tag is available upon request. 5 lines of 12 characters (60

characters total)

Software Tag • The transmitter can store up to 8 characters.

• Can be ordered with different software and hardware tags.

• If no software tag characters are specified, the first 8 characters of the

hardware tag are the default.

Description Part Number

Electronics Modules

Model 3144P Electronics Module (configured as a single sensor) 03144-3111-0001

Model 3144P Electronics Module (configured as a dual-sensor) 03144-3111-0002

M5 Meter Kit (includes meter display, captive mounting hardware, 10-pin interconnection header and cover)

M5 Meter Kit–Aluminum 03144-3120-0001

M5 Meter Kit–Stainless Steel 03144-3120-0011

Meter (includes meter, captive mounting hardware, 10-pin interconnection header) 03144-3120-0002

Meter Parts

Aluminum Meter Cover Kit (includes cover and O-ring) 03144-1043-0001

Stainless Steel Meter Cover Kit (includes cover and O-ring) 03144-1043-0011

LCD Adapter Kit (required for using a Model 3144/3244MV meter with a Model 3144P transmitter) 03144-2114-0001

Mounting Bracket Kit

B4 Mounting Bracket Kit 03044-2131-0001

B5 Mounting Bracket Kit 03144-1081-0001

Housing Cover (includes O-ring)

Model 3144P Aluminum Housing Cover 03144-1142-0001

Model 3144P Stainless Steel Housing Cover 03144-1142-0002

O-ring for cover (package of 12) 01151-0033-0003

Housing Kit (does not include covers)

Model 3144P Aluminum Housing Kit 03144-1141-0001

Model 3144P Aluminum Housing Kit with External Ground Lug Assembly 03144-1141-0002

Model 3144P Stainless Steel Housing Kit 03144-1141-0003

Model 3144P Stainless Steel Housing Kit with External Ground Lug Assembly 03144-1141-0004

Additional

Screw/Washer combination for Sensor / Power Terminals (package of 12) 03144-1044-0001

Jumper (10-pin)–Meter interconnection header (package of 12) 03144-1146-0001

External Ground Lug Assembly (includes hardware to be used with existing ground lug installed in the transmitter–

ground lug not included in kit)

03144-1047-0001

Integral Transient Protector Kit (Includes terminal screws and transient protector) 03144-3040-0001

Reference Manual

00809-0100-4021, Rev BA

April 2003

A-11

Model 3144P

EXTERNAL GROUND

SCREW ASSEMBLY

The external ground screw assembly can be ordered by specifying option

code G1 when an enclosure is specified. However, some approvals include

the ground screw assembly in the transmitter shipment, hence it is not

necessary to order option code G1. See below to determine which approval

options include the external ground screw assembly. Option code G1 is also

included with Integral Protector option code T1 and does not need to be

ordered separately.

CONFIGURATION

Standard Both standard and custom configuration settings may be changed using a

HART communicator. Unless specified, the transmitter will be shipped as

follows:

Custom The Model 3144P transmitter can be ordered with custom configuration. The

table below lists the requirements necessary to specify a custom

configuration.

Approval Type Ground Screw Assembly Included?

NA, E5, K5, K6, KB No–Order option code G1

N1, E1, I1, ND, K1, E7, N7, I7, K7, KA, I2 and E4 Ye s

Standard Configuration

4 mA value 0 °C

20 mA value 100 °C

Damping 5 seconds

Output Linear with temperature

Failure Mode High

Line Voltage Filter 60 Hz

Software Tag See “Tagging”

Optional Integral Meter Units and mA

Single Sensor option

Sensor Type 4-wire Pt 100 α = 0.00385 RTD

Primary Variable (4–20 mA) Sensor 1

Secondary Variable Terminal Temperature

Tertiary Variable Not Available

Quaternary Variable Not Available

Dual-Sensor option

Sensor Type Two 3-wire Pt 100 α = 0.00385 RTD

Primary Variable (4–20 mA) Sensor 1

Secondary Variable Sensor 2

Tertiary Variable Terminal Temperature

Quaternary Variable Not Used

Option Code Requirements/Specification

C1:

Factory Data(1)

Date: day/month/year

Descriptor: 16 alphanumeric character

Message: 32 alphanumeric character

Custom Alarm Levels can be specified for configuration at the factory.

C2:

Transmitter Sensor

Matching

The transmitters are designed to accept Callendar-van Dusen

constants from a calibrated RTD schedule and generate a custom

curve to match any specific sensor curve. Specify a Series 68, 65, or

78 RTD sensor on the order with a special characterization curve (V

or X8Q4 option). These constants will be programmed into the

transmitter with this option.

C4:

Five Point Calibration

Will include five-point calibration at 0, 25, 50, 75, and 100% analog

and digital output points.

Use with option code Q4 to obtain a Calibration Certificate.

Reference Manual

00809-0100-4021, Rev BA

April 2003

Model 3144P

A-12

(1) CDS required

To custom configure the Model 3144P with the dual-sensor option transmitter

for one of the applications described below, indicate the appropriate option

code in the model number. If a sensor type is not specified, the transmitter will

be configured for two 3-wire Pt 100 (α = 0.00385) RTDs if any of the following

option codes are selected.

C7:

Special Sensor

Used for non-standard sensor, adding a special sensor or expanding

input.

Customer must supply the non-standard sensor

information.Additional special curve will be added to sensor curve

input choices.

A1: NAMUR-

Compliant, high alarm

Analog output levels compliant with NAMUR. Alarm is set to fail high.

CN: NAMUR-

Compliant, low alarm

Analog output levels compliant with NAMUR. Alarm is set to fail low.

C8: Low Alarm Rosemount standard analog output levels with alarm set to fail low

F5: 50 Hz Line Filter Calibrated to 50 Hz line voltage filter.

Option Code U1: Hot Backup Configuration

Primary Usage Primary usage sets the transmitter to automatically use

sensor 2 as the primary input if sensor 1 fails. Switching

from sensor 1 to sensor 2 is accomplished without any

effect on the analog signal.

Primary Variable (4–20 mA) Sensor 1

Secondary Variable Sensor 2

Tertiary Variable Terminal Temperature

Quaternary Variable Not Used

Option Code U2: Average Temperature with Hot Backup and Sensor Drift Alert(1)

(1) Default Drift Alert Configuration Temperature difference limit is 3 °C (5.4 °F). Damping is 5 seconds.

Primary Usage Critical applications, such as safety interlocks and control

loops. Outputs the average of two measurements and alerts

if temperature difference exceeds the set maximum

differential (sensor drift alert). If a sensor fails, an alert will

be sent and the primary variable will hold working sensor

measurement.

Primary Variable (4–20 mA) Sensor Average

Secondary Variable Sensor 1

Tertiary Variable Sensor 2

Quaternary Variable Terminal Temperature

Option Code U4: Two Independent Sensors

Primary Usage Used in non-critical applications where the digital output is

used to measure two separate process temperatures.

Primary Variable (4-20 mA) Sensor 1

Secondary Variable Sensor 2

Tertiary Variable Terminal Temperature

Quaternary Variable Not Used

Option Code U5: Differential Temperature

Primary Usage The differential temperature of two process temperatures

are configured as the primary variable.

Primary Variable (4–20 mA) Differential Temperature

Secondary Variable Sensor 1

Tertiary Variable Sensor 2

Quaternary Variable Terminal Temperature

Option Code Requirements/Specification

Reference Manual

00809-0100-4021, Rev BA

April 2003

A-13

Model 3144P

Option Code U6: Average Temperature

Primary Usage When average measurement of two different process

temperatures is required.

If a sensor fails, an alert will be sent and the primary

variable will hold the measurement of the working sensor.

Primary Variable (4-20 mA) Sensor Average

Secondary Variable Sensor 1

Tertiary Variable Sensor 2

Quaternary Variable Terminal Temperature

Reference Manual

00809-0100-4021, Rev BA

April 2003

Model 3144P

A-14

Reference Manual

00809-0100-4021, Rev BA

April 2003 Model 3144P

www.rosemount.com

Appendix B Product Certifications

Hazardous Locations Installations . . . . . . . . . . . . . . . . . . page B-1

Installation Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page B-5

HAZARDOUS

LOCATIONS

INSTALLATIONS

The transmitter is designed with explosion-proof housings and circuitry

suitable for intrinsically safe and non-incendive operation. Each transmitter is

clearly marked with a tag indicating the approvals. To maintain certified

ratings for installed transmitters, install in accordance with all applicable

installation codes and approval drawings. 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.

North American

Approvals

Factory Mutual (FM) Approvals

E5 Explosion Proof for Class I, Division 1, Groups A, B, C, and D.

Dust Ignition-Proof for use in Class II/III, Division 1, Groups E, F, and G.

Explosion-Proof and Dust Ignition-Proof when installed in accordance

with Rosemount drawing 03144-0320. Indoor and outdoor use. NEMA

Type 4X.

Temperature code: T5 (Tamb = – 50 to 85 °C)

NOTE

For Group A, seal all conduits, seal all conduits within 18 inches of enclosure;

otherwise, conduit seal not required for compliance with NEC 501-5a(1).

Non-incendive for use in Class I, Division 2, Groups A, B, C, and D.

Non-incendive when installed in accordance with Rosemount drawing

03144-0321.

Temperature codes: T5 (Tamb = – 50 to 85 °C),

T6 (Tamb = – 50 to 60°C)

K5 Combination of E5 and the following:

Intrinsically Safe for Class I/II/III, Division 1, Groups A, B, C, D, F, and G.

Temperature codes: T4A (Tamb = – 50 to 60 °C),

T5 (Tamb = – 50 to 50°C)

Non-Incendive for use in Class I, Division 2, Groups A, B, C, and D.

Suitable for use in Class II/III, Division 2, Groups F and G.

Temperature codes: T5 (Tamb = – 50 to 85 °C),

T6 (Tamb = – 50 to 60°C)

Intrinsically safe and non-incendive when installed in accordance with

Rosemount drawing 03144-0321.

Reference Manual

00809-0100-4021, Rev BA

April 2003

Model 3144P

B-2

Canadian Standards Association (CSA) Approvals

K6 Combination of the following:

Explosion Proof for Class I, Division 1, Groups A, B, C, and D; Class II,

Division 1, Groups E, F, and G; Class III, Division 1 hazardous locations.

Factory sealed. Class I, Division 2, Groups A, B, C, and D.

Intrinsically Safe for Class I, Division 1, Groups A, B, C, and D; Class II,

Division 1, Groups E, F, and G; Class III, Division 1 hazardous locations

intrinsically safe when installed in accordance with Rosemount drawing

03144-0322.

European Approvals E1 Flameproof Approval (Zone 1)

Certificate Number: KEMA01ATEX2181

ATEX Category Marking II 2 G

EEx d IIC T6 (Tamb = –40 to 70 °C)

EEx d IIC T5 (Tamb = –40 to 80 °C)

Max supply voltage: 55 Vdc

ND CENELEC Dust Ignition Proof Approval

Certificate Number: KEMA01ATEX2181

ATEX Category Marking II 1 D

T95 °C (Tamb = –40 to 85 °C)

N1 CENELEC Type n Approval (Zone 2)

Certificate Number: BAS01ATEX3432X

ATEX Category Marking II 3 G

EEx nL IIC T6 (Tamb = –40 to 50 °C)

EEx nL IIC T5 (Tamb = –40 to 75 °C)

Ui = 55V

Special Conditions for Safe Use (x):

The transmitter is not capable of withstanding the 500 insulating test required

by Clause 9.1 of EN50021:1999. This condition must be taken into account

during installation.

I1 CENELEC Intrinsic Safety Approval (Zone 0)

Certificate Number: BAS01ATEX1431X

ATEX Category Marking II 1 G

EEx ia IIC T6 (Tamb = –60 to 50 °C)

EEx ia IIC T5 (Tamb = –60 to 75 °C)

Table B-1. Input Entity

Parameters

Special Conditions for Safe Use (x):

The transmitter is not capable of withstanding the 500V insulation test as

defined in Clause 6.4.12 of EN50 020. This condition must be taken into

account during installation.

K1 Combination of E1, N1, and I1

Power/Loop Sensor

Ui = 30 V dc Uo = 13.6 V

Ii = 300 mA Io = 56 mA

Pi = 1.0 W Po =190 mW

Ci = 5 nF Ci = 78 nF

Li = 0 Li = 0

Reference Manual

00809-0100-4021, Rev BA

April 2003

B-3

Model 3144P

Australian Approvals Standard Australia Quality Assurance Services (SAA)

E7 Flameproof Approval

Certificate Number: AUS Ex 02.3813X

Ex d IIC T6 (Tamb =–20 to 60°C)

Special Conditions for Safe Use (x):

1. Apparatus must be installed in accordance to Rosemount drawing

03144-0325.

2. If the sensor is intended to be remote mounted, it should be installed in a

suitable Standards Australia certified Flame-Proof enclosure and

installed in accordance with Rosemount drawing 03144-0325.

3. Standards Australia certified cable glands or conduit adapters must be

used when connecting to external circuits. Where only one conduit entry

is used for connection to external circuits, the unused entry is to be

closed by means of a blanking plug supplied by Rosemount or by a

suitable Standards Australia certified blanking plug.

N7 Type N Approval

Certificate Number: AUS Ex 02.3794X

Ex n IIC T6 (Tamb =–60 to 50°C)

Ex n IIC T5 (Tamb =–60 to 75°C)

IP66

Un = 55 V

Pn = 1.3 W

I7 Intrinsic Safety Approval

Certificate Number: AUS Ex 02.3794X

Ex ia IIC T6 (Tamb = –60 to 50 °C)

Ex ia IIC T5 (Tamb = –60 to 75 °C)

Table B-2. Input Entity

Parameters

Special Conditions for Safe Use (x):

1. For options using the transient protection board, the apparatus should be

connected to earth with a copper conductor of 4 mm (^2) or greater.

2. For the label with more than one type of marking on it, upon completion

of commissioning the apparatus the irrelevant marking code(s) shall be

permanently scrubbed off.

K7 Combination of E7, N7, and I7.

Power/Loop Sensor

Ui = 30 V dc Uo = 13.6 V

Ii = 300 mA Io = 100 mA

Pi = 1.0 W Po = 80 mW

Ci = 0.005 µF Co = 0.66 µF

Li = 20 µH Lo = 1.9 mH

Reference Manual

00809-0100-4021, Rev BA

April 2003

Model 3144P

B-4

Japanese Approval Japanese Industrial Standard (JIS) Flameproof Certification

E4 Without sensor: Ex d IIB T6 (Tamb = –20 to 55 °C)

With sensor: Ex d IIB T4 (Tamb = –20 to 55 °C)

Brazilian Approval Centro de Pesquisas de Energia Eletrica (CEPEL) Approval

I2 Intrinsic Safety

BR-Ex ia IIC T6

Combination Approval Factory Mutual and Canadian Standards Association Approvals

KB Combination of K5 and K6

CENELEC and CSA Approvals

KA Combination of K1 and K6

Additional Approvals American Bureau of Shipping (ABS) Type Approval

ABS Type Approval for temperature measurements in hazardous locations on

ABS Classed Vessels, Marine and Offshore Installations. Type Approval is

based on Factory Mutual (FM) Approvals; therefore, specify order code K5.

Please contact your Emerson Process Management representative if a copy

of the certification is required.

Det Norske Veritas (DNV) Type Approval for Shipboard and Offshore

Installations

DNV rules for classifications of ships and mobile offshore units for

temperature measurements in the following locations:

Table B-3. Applications /

Limitations

NOTE

The transient protector (option code T1) is required when requesting DNV

Type Approval. Additionally, hazardous locations approvals may be required

(based on shipboard location) and will need to be specified by the Hazardous

Locations option code.

Please contact your Emerson Process Management representative if a copy

of the certification is required.

GOSTANDART

Tested and approved by Russian Metrological Institute GOSTANDART.

Location Class

Temperature D

Humidity B

Vibration B/C

Enclosure D

Reference Manual

00809-0100-4021, Rev BA

April 2003

B-5

Model 3144P

INSTALLATION

DRAWINGS

Rosemount Drawing 03144-0320, 1 Sheet:

Factory Mutual Explosion-proof Installation Drawing.

Rosemount Drawing 03144-0321, 3 Sheets:

Factory Mutual Intrinsic Safety and Nonincendive Field Circuit Configuration

Installation Drawing.

Rosemount Drawing 03144-0322, 1 Sheet:

CSA Intrinsic Safety Approval Configuration Installation Drawing.

Rosemount Drawing 03144-0324, 1 Sheet:

KEMA/CENELEC Flame-proof Temperature Measurement Assembly

Installation Drawing.

Rosemount Drawing 03144-0325, 1 Sheet:

SAA Flameproof Temperature Measurement Assembly Installation Drawing.

IMPORTANT

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 used from

the unused approval type(s).

Reference Manual

00809-0100-4021, Rev BA

April 2003

Model 3144P

B-6

Figure B-1. Factory Mutual Explosion-Proof Installation Drawing 03144-0320, Rev. AB

3144_3144-0320A01A

Reference Manual

00809-0100-4021, Rev BA

April 2003

B-7

Model 3144P

Figure B-2. Factory Mutual Intrinsic Safety and Noincendive Field Circuit Configuration Installation Drawing

03144-0321, Rev.AB

3144_3144-0321A01A

Reference Manual

00809-0100-4021, Rev BA

April 2003

Model 3144P

B-8

3144_3144-0321A02A

Reference Manual

00809-0100-4021, Rev BA

April 2003

B-9

Model 3144P

3144_3144-0321A04A

Reference Manual

00809-0100-4021, Rev BA

April 2003

Model 3144P

B-10

Figure B-3. CSA Intrinsic Safety Approval Configuration Installation Drawing 03144-0322, Rev. AA

3144_3144-0322A01A

Reference Manual

00809-0100-4021, Rev BA

April 2003

B-11

Model 3144P

Figure B-4. ISSEP\CENELEC Flame-Proof Temperature Measurement Assembly Installation Drawing

03144-0324, Rev. AA

3144_3144-0324A02A

Reference Manual

00809-0100-4021, Rev BA

April 2003

Model 3144P

B-12

Figure B-5. Standard Australia Quality Assurance Services Flameproof Temperature Measurement Assembly

Installation Drawing 03144-0325, Rev. AA

3144_3144-0325A01A

Reference Manual

00809-0100-4021, Rev BA

April 2003 Model 3144P

www.rosemount.com

Appendix C Safety Instrumented

System (SIS)

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page C-1

Failure Rate Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page C-2

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page C-3

OVERVIEW This section details the requirements for using the Model 3144P in Safety

Instrumented Systems (SIS). Although the Model 3144P is not certified for

functional safety per IEC61508, a complete Failure Modes, Effects, and

Diagnosis Analysis (FMEDA) was completed to determine the safe failure

fraction (SFF) when using this device in a SIS application.

FMEDA are the device characteristics that are taken into account when

attempting to achieve functional safety certification per IEC61508 of a device.

From the FMEDA, failure rates are determined for all temperature sensing

device options. Furthermore, the Safe Failure Fraction is calculated for each

of the four different input device configurations.

The Model 3144P is an isolated 2-wire 4-20 mA SMART device classified as

Type B according to IEC61508. It contains self-diagnostics and is

programmed to send its output to either a high or low failure state upon

internal detection of a failure.

The analysis shows that the device has a safe failure fraction between 60 and

90% (assuming that the logic solver is programmed to detect over-scale and

under-scale currents). The device has a safe failure fraction of over 90%

when used with a temperature sensing device, such as thermocouple or RTD.

The device can detect open and short circuit failures of these temperature

sensing devices.

Table C-1. Definitions

Abbreviation Description Definition

λHFail High(1)

(1) Detected by the logic solver.

Failure that will result in an output current that is

higher than 20 mA

λLFail Low(1) Failure that will result in an output current that is

lower than 4 mA

λDU Fail Dangerous Undetected Failure that is dangerous and that is not being

diagnosed by internal diagnostics

SFF Safe Failure Fraction Fraction of the overall failure rate of a device

that results in either a safe fault or a diagnosed

unsafe fault.

Reference Manual

00809-0100-4021, Rev BA

April 2003

Model 3144P

C-2

FAILURE RATE DATA

Model 3144P with and

without a RTD

The failure rates for the Model 3144P transmitter operating in 4-wire RTD

mode, excluding the failure rates for the sensing device, are as follows:

•λH = 32.85 * 10-9 failures per hour

•λL = 351.96 * 10-9 failures per hour(1)

•λDU = 74.29 * 10-9 failures per hour

• SFF = 83.82%(2)

If these are combined with failure rates for a closely coupled, shock protected,

4-wire RTD then the total failure rates for the temperature sensing subsystem

are as follows:

•λH = 32.85 * 10-9 failures per hour

•λL = 2331.96 * 10-9 failures per hour (1)

•λDU = 94.29 * 10-9 failures per hour

• SFF = 96.17%(2)

Model 3144P with and

without a Thermocouple

The failure rates for the Model 3144P transmitter operating in thermocouple

mode, excluding the failure rates for the sensing device, are as follows:

•λH = 32.85 * 10-9 failures per hour

•λL = 344.16 * 10-9 failures per hour(1)

•λDU = 74.29 * 10-9 failures per hour

• SFF = 82.62%

If these are combined with failure rates for a closely coupled thermocouple

then the total failure rates for temperature sensing subsystem are as follows:

•λH = 32.85 * 10-9 failures per hour

•λL = 5094.16 * 10-9 failures per hour(1)

•λDU = 329.29 * 10-9 failures per hour

• SFF = 93.96%(2)

(1) Assuming the specified failure state is low.

(2) Assuming the high and low out of range signals are detected by the logic solver.

Reference Manual

00809-0100-4021, Rev BA

April 2003

C-3

Model 3144P

INSTALLATION No special installation practices are necessary with the Model 3144P in a

Safety Instrumented System. However, a full review of the Failure Mode and

Security switches is required. Follow the standard installation requirements

(see Section 2: Installation).

Switches Failure Mode Switch

The transmitter monitors itself during normal operation using an automatic

diagnostic routine. If the diagnostic routine detects a sensor failure or a failure

in the transmitter electronics, the transmitter goes into high or low alarm,

depending on the position of the failure mode switch.

The analog alarm and saturation values that the transmitter uses depend on

whether it is configured to standard (set by the factory) or NAMUR-compliant

operation. These values are also custom-configurable in both the factory and

the field using the Model 275 HART Communicator. The limits are:

•21.0 ≤ I ≤ 23 for high alarm

•3.5 ≤ I ≤ 3.75 for low alarm

The values for standard and NAMUR operation are as follows:

Transmitter Security Switch

The transmitter is equipped with a write-protect switch that can be positioned

to prevent both accidental and deliberate change of configuration data.

Changing Switch

Position

The Failure Mode and Security switches are located on the top center of the

electronics module (see Figure C-1). The electronics module is on the

electronics side of the transmitter housing. For transmitters with LCD meters,

the electronics module is located behind the LCD meter faceplate.

Without a LCD meter

1. If the transmitter is installed, set the loop to manual.

2. Remove the housing cover on the electronics side of the transmitter. Do

not remove the transmitter cover in explosive atmospheres when the

circuit is live.

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

4. Replace the transmitter cover. Both transmitter covers must be fully

engaged to meet explosion-proof requirements.

5. Set the loop to automatic control.

Characteristics Standard Operation NAMUR-Compliant Operation

Fail High 21.75 mA ≤ I ≤ 23.0 mA 21.0 mA ≤ I ≤ 23.0 mA

High Saturation I ≥ 20.5 mA I ≥ 20.5 mA

Low Saturation I ≤ 3.90 mA I ≤ 3.8 mA

Fail Low I ≤ 3.75 mA I ≤ 3.6 mA

Reference Manual

00809-0100-4021, Rev BA

April 2003

Model 3144P

C-4

With a LCD meter

1. If the transmitter is installed, set the loop to manual.

2. Remove the housing cover on the electronics side of the transmitter. Do

not remove the transmitter cover in explosive atmospheres when the

circuit is live.

3. Remove the housing cover, unscrew the LCD meter screws and gently

slide the meter straight off.

4. Set the switches to the desired position (see Figure C-1).

5. Gently slide the LCD meter back into place, taking extra precautions of

the 10 pin connection.

6. Secure the LCD meter by replacing the LCD meter screws.

7. Replace the transmitter cover. Both transmitter covers must be fully

engaged to meet explosion-proof requirements.

8. Set the loop to automatic control.

Figure C-1. Transmitter Jumper

Locations. Switch Location LCD Meter Faceplate

Failure Mode

Security

Diagram of

Switches

Fail Mode and Security Switch

LCD Connector

3144- 0200G33A, 0001B01B

Reference Manual

00809-0100-4021, Rev BA

April 2003 Model 3144P

www.rosemount.com

Index

Numerics

275 HART Communicator . . . . . . 3-2

Apply AMS Changes . . . . . . 3-5

Check Output . . . . . . . . . . . 3-6

Process Variables . . . . . 3-6

Configuration . . . . . . . . . . . 3-6

2-Wire RTD Offset . . . . 3-8

Average Temperature . 3-10

Change Connections . . . 3-7

Change Type . . . . . . . . 3-7

Differential Temperature 3-9

Drift Alert . . . . . . . . . . 3-13

Dual-Sensor . . . . . . . . . 3-9

First-Good . . . . . . . . . 3-11

Hot Backup . . . . . . . . 3-12

Output Units . . . . . . . . . 3-7

Sensor 1 Serial Number . 3-8

Sensor 2 Serial Number . 3-8

Sensor Configuration . . . 3-6

Terminal Temperature . . 3-9

Variable Mapping . . . . . 3-6

Device Information . . . . . . . 3-18

Date . . . . . . . . . . . . . 3-18

Descriptor . . . . . . . . . 3-18

Message . . . . . . . . . . 3-18

Tag . . . . . . . . . . . . . . 3-18

Device Output Configuration 3-14

Alarm and Saturation . . 3-16

HART Output . . . . . . . 3-17

LCD Meter Options . . . 3-17

PV Damping . . . . . . . . 3-15

PV Range Values . . . . 3-14

Diagnostics . . . . . . . . 4-9, 4-17

Diagnostics and Service . . . 3-21

Loop Test . . . . . . . . . . 3-22

Test Device . . . . . . . . 3-21

Fast Key Sequences . . . . . . 3-4

Measurement Filtering . . . . 3-19

50/60 Hz Filter . . . . . . 3-19

Intermittent Threshold . 3-19

Master Reset . . . . . . . 3-19

Open Sensor Holdoff . . 3-21

Sensor Detect . . . . . . . 3-19

Menu Tree . . . . . . . . . . . . . 3-3

Output Trim . . . . . . . . . . . . 4-8

Review Configuration Data . . 3-5

Review . . . . . . . . . . . . 3-5

Scaled Output Trim . . . . . . . 4-8

Sensor Input Trim . . . . . . . . 4-2

Trans-Sensor Match . . . . . . 4-5

Updating Software . . . . . . . 3-2

AMS . . . . . . . . . . . . . . . . . . . . 3-5

2-Wire RTD Offset . . . . . . . 3-8

Alarm and Saturation . . . . 3-17

Average Temperature . . . . .3-11

Change Connections . . . . . . 3-7

Change Type . . . . . . . . . . . 3-7

Device Information . . . . . . 3-18

Diagnostics . . . . . . . 4-10, 4-20

Differential Temperature . . 3-10

Drift Alert . . . . . . . . . . . . . 3-14

First Good Configuration . . .3-11

HART Output . . . . . . . . . . 3-17

Hot Backup . . . . . . . . . . . 3-13

Intermittent Sensor Detect . 3-19

LCD Meter Options . . . . . . 3-18

Loop Test . . . . . . . . . . . . 3-22

Master Reset . . . . . . . . . . 3-19

Multidrop Communication . 3-23

Open Sensor Holdoff . . . . . 3-21

Output Units . . . . . . . . . . . . 3-7

Process Variable Damping . 3-16

Process Variables . . . . . . . . 3-6

PV Range Values . . . . . . . 3-15

Review . . . . . . . . . . . . . . . 3-5

Scaled Ouput Trim . . . . . . . 4-8

Screens Messages . . . . . . 4-16

Sensor 1 Serial Number . . . 3-8

Sensor 2 Serial Number . . . 3-8

Sensor Input Trim . . . . . . . . 4-5

Terminal Temperature . . . . . 3-9

Test Device . . . . . . . . . . . 3-21

Transmitter-Sensor Matching 4-6

Variable Mapping . . . . . . . . 3-6

Variables . . . . . . . . . . . . . 4-20

Approvals . . . . . . . . . . . . . . . . .B-1

ABS . . . . . . . . . . . . . . . . . .B-4

Australian . . . . . . . . . . . . . .B-3

Brazilian . . . . . . . . . . . . . . .B-4

Combination . . . . . . . . . . . .B-4

DNV . . . . . . . . . . . . . . . . . .B-4

European . . . . . . . . . . . . . .B-2

GOSTANDART . . . . . . . . . .B-4

Japanese . . . . . . . . . . . . . .B-4

North American . . . . . . . . . .B-1

CSA . . . . . . . . . . . . . . .B-2

FM . . . . . . . . . . . . . . . .B-1

Calibration . . . . . . . . . . . . . . . . . 4-2

Trim the Transmitter . . . . . . . 4-2

Ouput Trim . . . . . . . . . . 4-8

Scaled Output Trim . . . . 4-8

Sensor Input Trim . . . . . 4-2

Trans-Sensor Match . . .4-5

Commissioning . . . . . . . . . . . . . . 2-2

Set Loop to Manual . . . . . . . 2-2

Set the Switches . . . . . . . . . 2-3

Failure Mode . . . . . . . . . 2-3

Securty . . . . . . . . . . . . . 2-3

With LCD Meter . . . . . . . 2-3

Without LCD meter . . . . 2-3

Configuration . . . . . . . . . . . . . .A-11

Custom . . . . . . . . . . . . . . .A-11

Standard . . . . . . . . . . . . . .A-11

Considerations . . . . . . . . . . . . . . 1-1

Electrical . . . . . . . . . . . . . . . 1-2

Environmental . . . . . . . . . . . 1-2

Corrosive . . . . . . . . . . . 1-3

Moist . . . . . . . . . . . . . . 1-3

Temperature Effects . . . 1-2

General . . . . . . . . . . . . . . . . 1-1

Mounting . . . . . . . . . . . . . . . 1-3

Housing Circuit Side . . . 1-3

Housing Terminal Side . . 1-3

Software Compatibility . . . . . 1-3

Corrosive Environments . . . . . . . 1-3

Current Loop Connections . . . . . 2-11

Reference Manual

00809-0100-4021, Rev BA

April 2003

Model 3144P

Index-2

Differences

3144P vs. 3144/3244MV . . . 1-4

Drawings

Dimensional . . . . . . . . . . . . A-7

Conduits . . . . . . . . . . . A-8

Incorrect Conduit Installation . 2-4

Installation . . . . . . . . . . . . . B-5

LCD Meter Faceplate . . . . . . A-7

Mounting Brackets . . . . . . . . A-8

Mounting with Drain Seal . . . 2-4

Sensor Wiring . . . . . . . . . . 2-10

Switch Location . . . . . . . . . . A-7

Switch Locations . . . . . . . . . 2-3

Terminal Block . . . . . . . . . . 2-9

Transmitter . . . . . . . . . . . . . A-7

Electronics Housing

Assembling . . . . . . . . . . . . 4-13

Replacing . . . . . . . . . . . . . 4-13

External Ground Screw . . . . . . . A-11

Fast Key Sequences . . . . . . . . . 3-4

Grounding . . . . . . . . . . . . . . . . 2-13

Shielding . . . . . . . . . . . . . 2-13

Shielding Recommendations 2-13

mV . . . . . . . . . . . . . . 2-13

RTD/Ohm Inputs . . . . . 2-13

Thermocouple . 2-13, 2-14

Transmitter Housing . . . . . 2-14

Hardware . . . . . . . . . . . . . . . . . 4-9

Diagnostics HART Comm . . . 4-9

Diagnostics with AMS . . . . 4-10

Maintenance . . . . . . . . . . . 4-12

Electronics . . . . . . . . . 4-12

Sensor Checkout . . . . 4-12

Test Terminal . . . . . . . 4-12

HART Communicator

See 275 HART Communicator . .

3-2

HART Tri-Loop . . . . . . . . . . . . 3-24

Burst Mode . . . . . . . . . . . . 3-24

Detect Sensor Drift Alert . . . 3-25

Diff Temp Measure . . . . . . 3-25

Hot Backup . . . . . . . . . . . . 3-25

Process Variable Output Order . .

3-24

Hazardous Locations Installations

See Approvals . . . . . . . . . . B-1

Installation . . . . . . . . . . . . . . . . 2-5

European . . . . . . . . . . . . . . 2-6

LCD Meter . . . . . . . . . . . . . 2-8

Multichannel . . . . . . . . . . . . 2-9

North American . . . . . . . . . 2-5

Sensor Wiring . . . . . . . . . . 2-10

SIS . . . . . . . . . . . . . . . . . . C-3

With a 333 HART Tri-Loop . . 2-7

Installation Drawings . . . . . . . . . B-5

LCD Meter

Diagnostics . . . . . . . . . . . 4-13

Installation . . . . . . . . . . . . . 2-8

Set switches . . . . . . . . . . . . 2-3

Menu Tree . . . . . . . . . . . . . . . . 3-3

Moist Environments . . . . . . . . . . 1-3

Mounting . . . . . . . . . . . . . . 1-3, 2-4

Conduit Installation

Incorrect . . . . . . . . . . . 2-4

Considerations . . . . . . . . . . 1-3

Mounting with Drain Seal . . . 2-4

Multichannel Installation . . . . . . . 2-9

Multidrop Communication . . . . . 3-23

Ordering Information . . . . . . . . . A-9

Spare Parts . . . . . . . . . . . A-10

Transmitter . . . . . . . . . . . . . A-9

Overview . . . . . . . . . . . . . . . . . 1-1

Manual . . . . . . . . . . . . . . . 1-1

SIS . . . . . . . . . . . . . . . . . . C-1

Transmitter . . . . . . . . . . . . . 1-1

Power Connections . . . . . . . . . .2-11

Power Supply . . . . . . . . . . . . . 2-12

Grounding . . . . . . . . . . . . 2-13

Surges/Transients . . . . . . . 2-12

Product Certifications

See Approvals . . . . . . . . . . B-1

Sensor Connection . . . . . . . . . 2-10

Millivolt . . . . . . . . . . . . . . .2-11

Ohm . . . . . . . . . . . . . . . . 2-10

RTD . . . . . . . . . . . . . . . . 2-10

Thermocouple . . . . . . . . . .2-11

Set

Loop to Manual . . . . . . . . . . 2-2

Switches . . . . . . . . . . . . . . . 2-3

Failure Mode . . . . . . . . . 2-3

Security . . . . . . . . . . . . 2-3

With LCD meter . . . . . . . 2-3

Without LCD meter . . . . 2-3

SIS

Failure Rate Data . . . . . . . . C-2

RTD . . . . . . . . . . . . . . C-2

Thermocouple . . . . . . . C-2

Installation . . . . . . . . . . . . . C-3

Switches . . . . . . . . . . . C-3

Software

275 HART Communicator

Updating . . . . . . . . . . . . 3-2

Considerations . . . . . . . . . . . 1-3

Specifications . . . . . . . . . . . . . . .A-1

Functional . . . . . . . . . . . . . .A-1

Custom Alarm Levels . . .A-3

Failure Mode . . . . . . . . .A-2

Humidity Limits . . . . . . .A-2

Inputs . . . . . . . . . . . . . .A-1

Isolation . . . . . . . . . . . .A-2

Load Limits . . . . . . . . . .A-1

Local Indication . . . . . . .A-2

Output . . . . . . . . . . . . .A-1

Power Supply . . . . . . . .A-1

Saturation Levels . . . . . .A-3

Temperature Limits . . . .A-2

Transient Protection . . . .A-2

Turn-on Time . . . . . . . .A-2

Update Time . . . . . . . . .A-2

Performance . . . . . . . . . . . .A-4

5 Year Stability . . . . . . .A-4

Accuracy . . . . . . . . . . .A-5

Amb Temp Effect . . . . . .A-6

CE Electromagnetic . . . .A-4

Power Supply Effect . . . .A-4

RFI Effect . . . . . . . . . . .A-4

Self Calibration . . . . . . .A-4

Stability . . . . . . . . . . . .A-4

Vibration Effect . . . . . . .A-4

Physical . . . . . . . . . . . . . . .A-3

Conduit Connections . . .A-3

Enclosure Ratings . . . . .A-4

HART Connections . . . .A-3

Materials . . . . . . . . . . . .A-3

Mounting . . . . . . . . . . .A-3

Weight . . . . . . . . . . . . .A-3

Surges/Transients . . . . . . . . . . 2-12

Switches

Failure Mode . . . . . . . . . . . . 2-3

Location . . . . . . . . . . . . . . . 2-3

SIS . . . . . . . . . . . . . . . . . . C-3

Change Switch Position C-3

Transmitter Security . . . . . . . 2-3

Reference Manual

00809-0100-4021, Rev BA

April 2003

Index-3

Model 3144P

Tagging . . . . . . . . . . . . . . . . . A-10

Hardware . . . . . . . . . . . . . A-10

Software Tag . . . . . . . . . . A-10

Temperature Effects . . . . . . . . . . 1-2

Transients/Surges . . . . . . . . . . 2-12

Wiring . . . . . . . . . . . . . . . . . . . . 2-9

Current Loop Connections . 2-11

Field Wiring . . . . . . . . . . . . 2-9

Power Connections . . . . . . 2-11

Sensor Connections . . . . . 2-10

Millivolt . . . . . . . . . . . 2-11

Ohm . . . . . . . . . . . . . 2-10

RTD . . . . . . . . . . . . . 2-10

Thermocouple . . . . . . 2-11

Reference Manual

00809-0100-4021, Rev BA

April 2003

Model 3144P

Index-4

Emerson Process Management

¢00809-0100-4021q¤

Rosemount, the Rosemount logotype, and Hot Backup are registered trademarks of Rosemount Inc.

HART is a registered trademark of the HART Communication Foundation.

Teflon is a registered trademark of E.I. du Pont de Nemours & Co.

All other marks are the property of their respective owners.

Reference Manual

00809-0100-4021, Rev BA

April 2003

Rosemount Temperature GmbH

Frankenstrasse 21

63791 Karlstein

Germany

T 49 (6188) 992 0

F 49 (6188) 992 112

Emerson Process Management Asia

Pacific Private Limited

1 Pandan Crescent

Singapore 128461

T (665) 777 8211

F (665) 777 0947

AP.RMT-Specialist@emersonprocess.com

Rosemount Inc.

8200 Market Boulevard

Chanhassen, MN 55317 USA

T (U.S.) 1-800-999-9307

T (International) (952) 906-8888

F (952) 949-7001

www.rosemount.com

4021_Rev BA 4021 Rev

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