Rosemount FISHER-ROSEMOUNT 244EH Bedienungsanleitung

Models 244EH and 244ER

PC-Programmable Temperature

Transmitters

00809-0100-4737

English

Rev. EA

¢00809-0100-4737f¤

00809-0100-4737 Rev EA 10/00

Product

Manual

Models 244EH and 244ER

PC-Programmable

Temperature Transmitters

Fisher-Rosemount

satisfies all obligations

coming from legislation

to harmonise product

requirements in the

European Union.

Rosmeount Inc.

8200 Market Boulevard

Chanhassen, MN 55317

USA

Tel 1-800-999-9307

Fax (952) 949-7001

Fisher-Rosemount Limited

Heath Place

Bognor Regis

West Sussex PO22 9SH

England

Tel 44 (1243) 863 121

Fax 44 (1243) 867 5541

Fisher-Rosemount

Singapore Pte Ltd.

1 Pandan Crescent

Singapore 128461

Tel (65) 777-8211

Fax 65 777-0947

AP.RMT-Specialist@frco.com

Product documentation available at...

www.rosemount.com

Rosemount Models 244EH and 244ER Smart Temperature Transmitters may be protected by one or more

U.S. Patents pending. Other foreign patents pending.

Rosemount and the Rosemount logotype are registered trademarks of Rosemount Inc.

Noryl and Lexan are registered trademarks of General Electric.

Microsoft, Windows, Windows 95, and Windows NT are registered trademarks of Microsoft Corp.

MINIGRABBER is a trademark of Pamona Electronics.

WAGO is a registered trademark of Kontakttechnik GmbH.

Cover photo: 644-244C901

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—includes Canada)

Outside of the United States, contact your local Rosemount representative.

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 Rosemount

Sales Representative.

Table of Contents

SECTION 1

Introduction SafetyMessages.....................................1-1

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

ManualOverview....................................1-2

Considerations ......................................1-3

General..........................................1-3

Mechanical.......................................1-3

Electrical ........................................1-3

Environmental....................................1-3

SECTION 2

Installation SafetyMessages.....................................2-1

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

ToolsneededforInstallation ...........................2-2

Mounting...........................................2-3

SpecialMountingConsiderations.....................2-4

InstallationProcedures................................2-5

Transmitter.......................................2-5

ConfigurationSoftware.............................2-9

Model 244EC Configuration Interface ................2-11

FieldWiring.......................................2-12

SensorConnections...............................2-13

FailureMode.......................................2-16

ChangingSwitchPositions .........................2-16

SECTION 3

Operation SafetyMessages.....................................3-1

Warning.........................................3-1

Power Supply .......................................3-1

Surges/Transients..................................3-1

Grounding .......................................3-2

Configuration.......................................3-2

ConfiguringaSingleTransmitter .....................3-3

ConfiguringSeveralTransmittersIdentically............3-4

ViewingtheProcessVariable........................3-5

Intermittent Sensor Algorithm ..........................3-5

CaseExamples....................................3-6

Intermittent Sensor Algorithm and Damping.............3-7

Intermittent Sensor Detect (Advanced Feature)...........3-8

Implementation ...................................3-9

SECTION 4

Maintenance and

Troubleshooting

SafetyInformation...................................4-1

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

Troubleshooting .....................................4-1

Model 244EH software version 5.5.1 ..................4-1

Rosemount Models 244EH and 244ER PC-Programmable Temperature Transmitters

APPENDIX A

Reference Data Transmitter Specification .............................A-1

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

Performance.....................................A-2

Physical........................................A-5

Model 244EC Configuration Interface ................A-5

OrderingInformation................................ A-6

Ordering Flameproof and Explosion-proof Approvals

forTemperatureAssemblies........................A-8

DimensionalDrawings...............................A-9

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

Enclosure and Model 244EC Configuration Interface.....A-9

APPENDIX B

Approvals SafetyMessages.................................... B-1

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

LocationsCertifications.............................. B-2

InstallationDrawings................................ B-4

APPENDIX C

Models 644 and 244E

Temperature Transmitters

Manual Supplement

Old Transmitter..................................... C-2

Transmitter Design................................ C-2

SensorWiringDiagrams........................... C-2

SpecialMountingConsiderations.................... C-2

New Transmitter.................................... C-3

Transmitter Design................................ C-3

SensorWiringDiagrams........................... C-3

SpecialMountingConsiderations.................... C-3

HART Communicator (Model 644H only) ............. C-3

Specifications...................................... C-4

Section

1-1

1Introduction

SafetyMessages ................................page1-1

TransmitterOverview.............................page1-1

ManualOverview ................................page1-2

Considerations ..................................page1-3

SAFETY MESSAGES Procedures and instructions in this manual 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 ( ). Refer to the safety messages listed at the

beginning of each section before performing an operation preceded by

this symbol.

TRANSMITTER OVERVIEW Thank you for choosing the Model 244E. Features of the Model 244EH

and Model 244ER transmitters include:

• Configuration using the Model 244EC Configuration Interface

and a Microsoft®Windows®-based PC running the Models 244EH

and 244ER Configuration Software

• The ability to convert RTD and thermocouple inputs to 4–20 mA,

2-wire outputs that are less susceptible to electrical noise

• The capability to linearize RTD and thermocouple inputs

with temperature

• Electrical input-output isolation

• Electronics that are completely encapsulated in epoxy and

enclosed in a metal housing, making the transmitter extremely

durable and ensuring long-term reliability

• A compact size and two housing options allowing mounting

flexibility for the control room or the field

Rosemount Inc. has a full range of compatible connection heads,

sensors, and thermowells to provide complete assemblies for process

temperature measurements. Refer to Volume 1 of the Rosemount

Temperature Sensors and Assemblies Product Data Sheet (document

number 00813-0100-2654) for thread mount sensors and accessories, or

refer to Volume 2 (document number 00813-0100-2654) for DIN-style

sensors and accessories.

Failure to follow these installation guidelines could result in death or

serious injury.

• Make sure only qualified personnel perform the installation.

Rosemount Models 244EH and 244ER PC-Programmable Temperature Transmitters

1-2

MANUAL OVERVIEW This manual is designed to assist in the installation, operation, and

maintenance of Rosemount®Model 244EH and 244ER PC

Programmable Temperature Transmitters and the Model 244EC

Configuration Interface.

Section 2: Installation

• Tools for installation

• Mounting

• Installation

• Field wiring

Section 3: Operation

• Power Supply

• Configuration

Section 4: Maintenance and Troubleshooting

• Software Troubleshooting

Appendix A: Reference Data

• Specifications

• Dimensional drawings

• Ordering information

Appendix B: Approvals

• Locations certifications

• Installation drawings

Appendix C: Models 644 and 244E Temperature Transmitters Manual

Supplement

• Comparison between new and old Models 644 and 244E

• Specifications

1-3

CONSIDERATIONS

General Electrical temperature sensors such as RTDs and thermocouples

produce low-level signals proportional to their sensed temperature. The

Models 244EH and 244ER transmitters convert the low-level sensor

signal to a standard 4–20 mA dc signal that is relatively insensitive to

lead length and electrical noise. This current signal is then transmitted

to the control room via two wires.

Mechanical When choosing an installation location and position, take into account

the need for access to the transmitter.

Wiring Connections

Make wiring connections through the cable entry in the side of the

connection head. Be sure to provide adequate clearance for

cover removal.

Electrical Proper electrical installation is necessary to prevent errors due to

sensor lead resistances and electrical noise. Shielded cable should be

used in electrically noisy environments.

Environmental The transmitter electronics module is permanently sealed within the

housing, resisting moisture and corrosive damage. Verify that the

operating atmosphere of the transmitter is consistent with the

appropriate hazardous locations certifications.

Section

2-1

2Installation

SafetyMessages ................................page2-1

ToolsneededforInstallation.......................page2-2

Mounting . ......................................page2-3

InstallationProcedures ...........................page2-5

FieldWiring.....................................page2-12

FailureMode ....................................page2-16

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 could result in death or serious injury.

• Do not remove the enclosure cover in explosive atmospheres when the circuit

is live.

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

appropriate hazardous locations certification.

• Enclosure covers must be fully engaged to meet explosion-proof requirements.

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. Doing so 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 condition or

installation error occurs, high voltage may be present on transmitter leads

and terminals.

• Use extreme caution when making contact with leads and terminals.

Rosemount Models 244EH and 244ER PC-Programmable Temperature Transmitters

2-2

Figure 2-1. Transmitter

Installation Flowchart

TOOLS NEEDED FOR

INSTALLATION The tools needed for installation are as follows:

Begin Here Transmitter

Configured?

Configure

Transmitter

Set Sensor

Type

SetNumber

of Wires

Set50/60Hz

Filter

Set Units

Set Range

Values

Set

Damping

Field

Install

Set Failure

Mode Switch

Mount

Transmitter

Wire

Transmitter

Power

Transmitter

Check for

Leaks

Done

244-244_02A

Models 244EH and 244ER: • Transmitter

• Mounting apparatus

Model 244EC Configuration Interface: • Transmitter

• 9-pin connector cable

• MINIGRABBER™clips

Model 244EH and 244ER Configuration Software: •PC

• Windows-based software

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