Fisher 244ER, 244EH User Manual

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00809-0100-4737

English

Rev. EA

Models 244EH and 244ER

PC-Programmable Temperature

Transmitters

Product

Manual

Models 244EH and 244ER

PC-Programmable

Temperature Transmitters

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.

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

Rosmeount Inc.

 

Fisher-Rosemount Limited

8200 Market Boulevard

 

Heath Place

Chanhassen, MN 55317

 

Bognor Regis

USA

 

West Sussex PO22 9SH

Tel 1-800-999-9307

 

England

Fax (952) 949-7001

 

Tel 44 (1243) 863 121

 

 

Fax 44 (1243) 867 5541

© Rosemount Inc., 2000

R

INT

 

D

 

E

U.S.A

 

P

IN

 

 

 

 

.

¢00809-0100-4737f¤

00809-0100-4737 Rev EA 10/00

Fisher-Rosemount

Singapore Pte Ltd.

1 Pandan Crescent

Singapore 128461

Tel (65) 777-8211

Fax 65 777-0947

AP.RMT-Specialist@frco.com

Fisher-Rosemount satisfies all obligations coming from legislation to harmonise product requirements in the European Union.

Product documentation available at...

www.rosemount.com

Table of Contents

SECTION 1

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. 1-1

Introduction

Transmitter Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. 1-1

 

Manual Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. 1-2

 

Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. 1-3

 

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. 1-3

 

Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. 1-3

 

Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. 1-3

 

Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. 1-3

SECTION 2

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. 2-1

Installation

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. 2-1

 

Tools needed for Installation . . . . . . . . . . . . . . . . . . . . . . . . . .

. 2-2

 

Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. 2-3

 

Special Mounting Considerations . . . . . . . . . . . . . . . . . . . .

. 2-4

 

Installation Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. 2-5

 

Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. 2-5

 

Configuration Software . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. 2-9

 

Model 244EC Configuration Interface . . . . . . . . . . . . . . . .

2-11

 

Field Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-12

 

Sensor Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-13

 

Failure Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-16

 

Changing Switch Positions . . . . . . . . . . . . . . . . . . . . . . . . .

2-16

SECTION 3

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. 3-1

Operation

Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. 3-1

 

Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. 3-1

 

Surges/Transients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. 3-1

 

Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. 3-2

 

Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. 3-2

 

Configuring a Single Transmitter . . . . . . . . . . . . . . . . . . . .

. 3-3

 

Configuring Several Transmitters Identically . . . . . . . . . . .

. 3-4

 

Viewing the Process Variable . . . . . . . . . . . . . . . . . . . . . . .

. 3-5

 

Intermittent Sensor Algorithm . . . . . . . . . . . . . . . . . . . . . . . . .

. 3-5

 

Case Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. 3-6

 

Intermittent Sensor Algorithm and Damping. . . . . . . . . . . .

. 3-7

 

Intermittent Sensor Detect (Advanced Feature). . . . . . . . . .

. 3-8

 

Implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. 3-9

SECTION 4

Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. 4-1

Maintenance and

Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. 4-1

Troubleshooting

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. 4-1

 

Model 244EH software version 5.5.1 . . . . . . . . . . . . . . . . .

. 4-1

1

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

APPENDIX A

Transmitter Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A-1

Reference Data

Functional. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A-1

 

Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A-2

 

Physical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A-5

 

Model 244EC Configuration Interface . . . . . . . . . . . . . . . .

A-5

 

Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A-6

 

Ordering Flameproof and Explosion-proof Approvals

 

 

for Temperature Assemblies . . . . . . . . . . . . . . . . . . . . . . . .

A-8

 

Dimensional Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A-9

 

Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A-9

 

Enclosure and Model 244EC Configuration Interface. . . . .

A-9

APPENDIX B

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

B-1

Approvals

Hazardous Locations Installations . . . . . . . . . . . . . . . . . . . . . .

B-1

 

Locations Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

B-2

 

Installation Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

B-4

APPENDIX C

Old Transmitter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C-2

Models 644 and 244E

Transmitter Design. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C-2

Temperature Transmitters

Sensor Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . .

C-2

Manual Supplement

Special Mounting Considerations . . . . . . . . . . . . . . . . . . . .

C-2

 

New Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C-3

 

Transmitter Design. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C-3

 

Sensor Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . .

C-3

 

Special Mounting Considerations . . . . . . . . . . . . . . . . . . . .

C-3

 

HART Communicator (Model 644H only) . . . . . . . . . . . . .

C-3

 

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C-4

2

Section

1 Introduction

SAFETY MESSAGES

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-1 Transmitter Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-1 Manual Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-2 Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-3

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.

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

Make sure only qualified personnel perform the installation.

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.

1-1

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

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

1-2

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.

1-3

Section

2 Installation

SAFETY MESSAGES

Warnings

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-1 Tools needed for Installation . . . . . . . . . . . . . . . . . . . . . . . page 2-2 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-3 Installation Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-5 Field Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-12 Failure Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-16

Instructions and procedures in this section may require special precautions to ensure the safety of the personnel performing the operations. Information that raises potential safety issues is indicated by a warning symbol (). Please refer to the following safety messages before performing an operation preceded by this symbol.

Explosions 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.

2-1

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

Figure 2-1. Transmitter

Installation Flowchart

TOOLS NEEDED FOR INSTALLATION

Begin Here

Transmitter

Configured?

 

 

 

 

 

Configure

 

Field

Transmitter

 

Install

 

 

 

 

Set Sensor

Type

Set Number

of Wires

Set 50/60 Hz

Filter

Set Units

Set Range

Values

Set

Damping

The tools needed for installation are as follows:

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

 

 

 

 

MINIGRABBERclips

Model 244EH and 244ER Configuration Software:

PC

• Windows-based software

2-2

MOUNTING

Figure 2-2. Model 244EH Connection Head Temperature Rise vs. Extension Length

The Model 244EH installs in a connection head or universal head mounted directly on a sensor assembly, apart from a sensor assembly using a universal head, or to a DIN rail using an optional mounting clip. The Model 244ER mounts directly to a wall or to a DIN rail.

The Models 244EH and 244ER transmitters will operate within specifications for ambient temperatures between –40 and 185 °F (–40 and 85 °C).

In a direct mounting configuration using a Model 244EH transmitter, process heat is transferred from the thermowell to the transmitter via the connection head. If the expected connection head 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 excessive temperatures. Figure 2-2 provides an example of the relationship between transmitter housing temperature rise and extension length. Use Figure 2-2 as a guide for determining adequate thermowell extension length.

(°C)

60

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ambient

50

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Above

40

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

30

 

4

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

°

 

 

 

 

 

 

 

 

 

 

 

 

TemperatureRise

 

 

0

C

Pr

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

°C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

oce

s

 

 

 

 

 

 

 

20

 

 

Pr

 

 

 

 

 

 

s

Te

 

 

 

 

 

0123A-3044

0

 

 

o

ce

s

s

 

 

 

m

per

at

ure

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Temp

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

er

 

 

 

 

 

 

 

10

250

 

 

 

 

 

 

 

 

 

atur

e

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

°C

Pro

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

cess

Temperature

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

75

 

100

 

 

125

 

150

175

 

200

225

 

 

 

 

Extension Length (mm)

 

Example

The transmitter specification limit is 85 °C. If the ambient temperature is 55 °C and the process temperature to be measured is 800 °C, the maximum permissible connection head temperature rise is the transmitter specification limit minus the ambient temperature

(85 –55 °C), or 30 °C. In this case, an extension of 100 mm meets this requirement, but 125 mm provides a margin of 8 °C, thereby reducing any temperature effects in the transmitter.

2-3

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

Special Mounting

Considerations

Figure 2-3. Assembling Rail Clip Hardware to a Model 244EH

Figure 2-4. Assembling Model 244EH for Use in an Existing L1 Connection Head

Special mounting hardware is available for mounting a

Model 244EH head mount transmitter to a DIN rail, or assembling a new Model 244EH to an existing threaded sensor connection head (former option code L1).

Mounting a Model 244EH to a DIN Rail

To attach a head mount transmitter to a DIN rail, assemble the appropriate rail mounting kit (part number 00644-5301-0010) to the transmitter as shown in Figure 2-3, then follow the procedure under “Rail Mount Transmitter with Integral Mount Sensor” on page 2-7.

G-Rail (asymmetric)

Top Hat Rail (symmetric)

 

Mounting

Mounting

 

Hardware

 

Hardware

D02A

Transmitter

Transmitter

5302B01A,

 

 

Rail Clip

Rail Clip

644-

 

 

Note: Kit includes Mounting Hardware and both types of rail kits.

Retrofitting a Model 244EH for Use in an Existing Threaded Sensor Connection Head

To mount a Model 244EH in an existing threaded sensor connection head (former option code L1), order the Model 244EH retrofit kit (part number 00644-5321-0010). The retrofit kit includes a new mounting bracket and all associated hardware necessary to facilitate the installation of the Model 244EH in the existing head.

Existing Threaded Sensor Connection Head

(Former option code L1)

Kit includes replacement 5321A01A bracket and screws.

-644

2-4

INSTALLATION

PROCEDURES

Transmitter

Refer to the appropriate procedure and the accompanying illustrations

 

when installing the transmitter.

 

Head Mount Transmitter with DIN Plate Style Sensor

 

The least complicated assembly uses:

 

• an integral mount sensor with flying leads

 

• an integral DIN style connection head

 

a standard extension

 

a threaded thermowell

 

Refer to Volume 2 of the Rosemount Sensors Product Data Sheet

 

(document number 00813-0101-2654) for complete sensor and

 

mounting accessory information.

 

To complete the assembly, follow the steps described below.

 

1.

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

 

 

and tighten the thermowell before applying pressure.

 

2.

Set the transmitter failure mode switch

 

 

(see Figure 2-13 on page 2-16).

 

3.

Assemble the transmitter to the sensor. Push the transmitter

 

 

mounting screws through the sensor mounting plate and insert the

 

 

snap rings (optional, part number 00644-4432-0001) into the

 

 

groove of each transmitter mounting screw.

 

4.

Insert the transmitter-sensor assembly into the connection head.

 

 

Thread the transmitter mounting screw into the connection head

 

 

mounting holes.

 

5.

Assemble the extension to the connection head. Insert the

 

 

assembly into the thermowell.

 

6.

Attach a cable gland into the shielded cable.

 

7.

Insert the shielded cable leads into the connection head through

 

 

the cable entry. Connect and tighten the cable gland.

 

8.

Connect the shielded cable leads to the transmitter power

 

 

terminals. Avoid contact with leads and terminals.

 

9.

Install and tighten the connection head cover. Enclosure covers

 

 

must be fully engaged to meet explosion-proof requirements.

Figure 2-5. Typical Model 244EH

Mounting Configuration Using Integral

Mount Sensor and Assembly

Model 244EH

 

 

 

 

Connection

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Head

 

 

 

 

 

 

 

Threaded

 

Transmitter

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Thermowell

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Integral Mount Sensor

Threaded Extension

with Flying Leads

 

644-0000B04A

2-5

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

Head Mount Transmitter with Threaded Sensor

The least complicated assembly uses:

a threaded sensor with flying leads

the universal connection head

a union and nipple extension assembly

a threaded thermowell

Refer to Volume 1 of the Rosemount Sensors Product Data Sheet (document number 00813-0100-2654) for complete sensor and mounting accessory information.

To complete the assembly, follow the steps as described below.

1. Attach the thermowell to the pipe or process container wall. Install and tighten thermowells before applying pressure.

2.Attach necessary extension nipples and adapters. Seal the nipple and adapter threads with silicone tape.

3.Screw the sensor into the thermowell. Install drain seals if required for severe environments or to satisfy code requirements.

4.Set the transmitter failure mode switch (see Figure 2-13 on page 2-16).

5.Pull the sensor wiring leads through the extensions and adapters into the universal head. Mount the transmitter in the universal head by threading the transmitter mounting screws into the universal head mounting holes.

6.Mount the assembly into the thermowell. Seal adapter threads with silicone tape.

7.Install conduit for field wiring to the conduit entry of the universal head. Seal conduit threads with silicone tape.

8. Pull the field wiring leads through the conduit into the universal head. Attach the sensor and power leads to the transmitter. Avoid contact with leads and terminals.

9. Install and tighten the universal head cover. Enclosure covers must be fully engaged to meet explosion-proof requirements.

Figure 2-6. Typical Model 244EH

Transmitter Mounting Configuration

Using Threaded Style Sensor

and Assembly Threaded Thermowell Threaded Style Sensor

Standard

Extension

Universal Head

644-0000A04A

2-6

Rail Mount Transmitter with Integral Mount Sensor

The least complicated assembly uses:

an integral mount sensor with terminal block

an integral DIN style connection head

a standard extension

a threaded thermowell

Refer to Volume 2 of the Rosemount Sensors Product Data Sheet (document number 00813-0101-2654) for complete sensor and mounting accessory information.

To complete the assembly, follow the procedure described below.

1. Attach the transmitter to a suitable rail or panel.

2. Attach the thermowell to the pipe or process container wall. Install and tighten the thermowell before applying pressure.

3.Attach the sensor to the connection head and mount the entire assembly to the thermowell.

4.Attach sufficient lengths of sensor lead wire to the sensor terminal block.

5. Attach and tighten the connection head cover. Enclosure covers must be fully engaged to meet explosion-proof requirements.

6.Run sensor lead wires from the sensor assembly to the transmitter.

7.Set the transmitter failure mode switch (see Figure 2-13 on page 2-16).

8. Attach the sensor and power leads to the transmitter. Avoid contact with leads and terminals.

Figure 2-7. Typical Rail Mount

Transmitter Mounting Configuration

Using Integral Mount Sensor

and Assembly

Rail Mount Transmitter

Integral Mount Sensor

with Terminal Block

 

Connection Head

Sensor Leads

 

with Cable Gland

 

 

Standard Extension

 

Threaded Thermowell

644-0000C04A

2-7

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

Rail Mount Transmitter with Threaded Sensor

The least complicated assembly uses:

a threaded sensor with flying heads

a threaded sensor connection head

a union and nipple extension assembly

a threaded thermowell

Refer to Volume 1 of the Rosemount Sensors Product Data Sheet (document number 00813-0100-2654) for complete sensor and mounting accessory information.

To complete the assembly, follow the procedure described below.

1. Attach the transmitter to a suitable rail or panel.

2. Attach the thermowell to the pipe or process container wall. Install and tighten the thermowell before applying pressure.

3.Attach necessary extension nipples and adapters. Seal the nipple and adapter threads with silicone tape.

4.Screw the sensor into the thermowell. Install drain seals if required for severe environments or to satisfy code requirements.

5.Screw the connection head to the sensor.

6.Attach the sensor lead wires to the connection head terminals.

7.Attach additional sensor lead wires from the connection head to the transmitter.

8. Attach and tighten the connection head cover. Enclosure covers must be fully engaged to meet explosion-proof requirements.

9.Set the transmitter failure mode switch (see Figure 2-13 on page 2-16).

10. Attach the sensor and power leads to the transmitter. Avoid contact with leads and terminals.

Figure 2-8. Typical Rail Mount

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Transmitter Mounting Configuration

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Using Threaded Style Sensor

Rail Mount

 

Threaded Sensor

 

 

 

Standard

and Assembly

 

 

 

 

Transmitter

 

Connection Head

 

 

 

 

 

 

Extension

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Threaded

Threaded

Style Sensor

Thermowell

644-0000A04B

2-8

Multichannel Installations

Several transmitters can be connected to a single master power supply as shown in Figure 2-9. 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 a back-up battery or power supply that cannot be interrupted. The diodes shown in Figure 2-9 prevent unwanted charging or discharging of the back-up battery.

Figure 2-9. Multichannel Installations

 

RLead

Backup Battery

Transmitter

RLead

Readout or

dc

No. 1

 

Controller

Power

 

 

No.1

Supply

Transmitter

RLead

 

 

No. 2

Readout or

 

 

 

 

 

 

Controller

 

 

 

No. 2

To Additional Transmitters

Configuration Software

System Requirements

 

For the configuration software to function properly, the following

 

minimum PC requirements must be observed.

 

• 80386 or faster processor

 

• 1 MB free disk space

 

• 3.5-inch floppy disk drive

 

• Mouse or other pointing device

 

• 256 color display (recommended settings are 16-bit color at

 

1024 × 728 screen resolution)

 

• Microsoft Windows 3.1, Windows for Workgroups 3.11,

 

Windows 95, or Windows NT.

 

The configuration software is available in English, French, German,

 

Italian, Spanish, Chinese, Japanese, and Korean language versions.

 

The configuration software automatically selects the appropriate

 

language based on the language version of Windows.

NOTE

Close all currently running applications before starting the installation procedure.

NOTE

Windows 98 is not compatible with this software.

3044-0131A

2-9

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

Choose the procedure that matches the operating system you are using.

Procedure for Windows 3.1 or Windows for Workgroups 3.11

1.If you do not have Win32s installed, install it now. Follow the instructions on the diskette label.

2.Insert the Models 244EH and 244ER Configuration Software diskette into your floppy disk drive.

3.In the File Manager, choose RUN from the FILE menu.

4.The RUN dialog box appears. In the COMMAND LINE text box, type <drive>:\setup. Substitute the letter of your floppy disk drive (usually a or b) for <drive>. Click OK.

5.The WELCOME window appears. Click OK.

6.The SELECT DESTINATION DIRECTORY window appears. To accept the default installation directory, click OK. To specify a different installation directory, either type a new directory path in the DESTINATION DIRECTORY text box or select one from the list. Click OK.

7.The COMM SETTINGS window appears. In the COMM PORT drop-down box, choose the communication port to which you intend to connect the Model 244EC. Click OK.

8.The SELECT PROGRAM MANAGER GROUP window appears. To accept the default Program Manager group name, click OK. To specify a different group name, either type a new name in the GROUP NAME text box or select one from the list. Click OK.

Procedure for Windows 95 or Windows NT

1.Insert the Models 244EH and 244ER Configuration Software diskette into your floppy disk drive.

2.Click the START button on taskbar. Click RUN.

3.The RUN dialog box appears. In the OPEN text box, type <drive>:\setup. Substitute the letter of your floppy disk drive (usually a or b) for <drive>. Click OK.

4.The SELECT DESTINATION DIRECTORY window appears. To accept the default installation directory, click OK. To specify a different installation directory, either type a new directory path in the DESTINATION DIRECTORY text box or select one from the list. Click OK.

5.The COMM SETTINGS window appears. Choose the communication port to which you intend to connect the

Model 244EC from the COMM PORT drop-down box. Click OK.

6.The SELECT PROGRAM MANAGER GROUP window appears. To accept the default Program Manager group name, click OK. To specify a different group name, either type a new name in the GROUP NAME text box or select one from the list. Click OK.

2-10

Model 244EC Configuration

Interface

Screen Conventions

The Models 244EH and 244ER Configuration Software follows the Microsoft Windows screen conventions with the following exception: Configuration parameters change color to indicate fields where information has changed. Before placing a new transmitter into service, or before returning a transmitter to service after changing configuration information, verify that the values in the fields that have been changed reflect the correct configuration parameters for your application. For example, if you change the Sensor Type field to PT100– Alpha 392, the Number of Wires, Units, 4 mA Point, and 20 mA Point fields all change to reflect the default PT100–Alpha 392 sensor values. Verify all information before placing the transmitter into service.

The Model 244EC Configuration Interface is a portable, self-contained link between your PC and a Model 244. The Model 244EC connects to a PC serial port with a standard 9-pin interconnecting plug and connects to a transmitter with two MINIGRABBERclips.

The Model 244EC will also operate using a wall power adapter or a single replaceable 9-volt battery.

Setting Up the Model 244EC Configuration Interface

All necessary power is provided through the configuration leads from the Model 244EC to the transmitter. The sensor does not need to be disconnected in order to configure the transmitter.

To set up the Model 244EC Configuration Interface and prepare it for use, refer to Figure 2-10 on page 2-12 and follow the procedure described below.

1.Install the 9-volt battery in the Model 244EC. Be sure the power switch remains in the “OFF” position.

2.Attach the ribbon cable from the Model 244EC to the serial port of your PC using the 9-pin interconnecting plug. If your PC has a 25-pin serial port, you will need a 25-pin to 9-pin adapter to accommodate the connection.

NOTE

It is not necessary to power down your PC before you attach the Model 244EC. However, if you are using a desktop model, you may wish to power down to reduce the risk of electric shock or computer damage.

3.Attach the configuration leads to the Model 244EC using the banana jacks provided. Be sure to observe proper polarity—attach the red lead to the positive (+) jack on the Model 244EC and the black lead to the negative (–) jack.

4.Attach the configuration leads to the configuration terminals (labeled “PROG”) on the transmitter using the MINIGRABBER clips provided. Be sure to observe proper polarity—attach the red lead to the positive (+) terminal on the transmitter and the black lead to the negative (–) terminal.

2-11

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

5.Turn on the Model 244EC using the power switch on the top side of the housing.

NOTE

Verify that the Model 244EC “Low Battery” LED is not on before initiating communication with the transmitter. If the low battery LED is on, you will not be able to configure the transmitter.

6.Using your PC, open the Configuration Software program. Access the online help if you have questions regarding the use of the program.

Figure 2-10. Complete Transmitter

Configuration System

Windows-based PC Running

the Configuration Software

Model 244EC

Configuration

Interface

Model 244EH or 244ER Transmitter

244-011AB

FIELD WIRING

All power to the transmitter is supplied over the signal wiring. Use ordinary copper wire of sufficient size to ensure that the voltage across the transmitter power terminals does not drop below 12.0 V dc.

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.

NOTE

Do not apply high voltage (e.g., ac line voltage) to the transmitter terminals. Abnormally high voltage can damage the unit. (Sensor and transmitter power terminals are rated to 42.4 V dc.)

For multichannel installations, see “Multichannel Installations” on page 2-9. The transmitters will accept inputs from a variety of RTD and thermocouple types. Refer to Figure 2-12 on page 2-15 when making sensor connections.

2-12

Use the following steps to wire the transmitter:

1.Connect the positive lead from the power supply to the transmitter terminal marked “+” and the negative lead to the transmitter terminal marked “” (see Figure 2-11 and Figure 2-13).

2.Tighten the terminal compression screws to ensure adequate contact. No additional power wiring is required.

3.After making connections, recheck the polarity and correctness of connections, then turn the power on.

Figure 2-11. Transmitter Field

Wiring Diagrams

Model 244EH

Power

Supply

Model 244ER

Power

Supply

Note: Signal loop may be grounded at any point or left ungrounded.

244-0000A02C

644-0000A02D

Sensor Connections

The Models 244E are compatible with a number of RTD and thermocouple sensor types. Figure 2-12 shows the correct input connections to the sensor terminals on the transmitter. To ensure proper sensor connections, anchor the sensor lead wires into the appropriate compression terminals and tighten the screws.

RTD or Ohm Inputs

The transmitters will accept a variety of RTD configurations, including 2-wire, 3-wire, 4-wire, and compensation loop designs. If the transmitter is mounted remotely from a 3-wire 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, both RTD leads are in series with the sensor element, so significant errors can occur if the lead lengths exceed three feet of 20 AWG wire (approximately 0.05 °C/ft). For longer runs, attach a third or fourth lead as described above.

2-13

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

Table 2-1. Examples of Approximate

Basic Error

Sensor Lead Wire Resistance Effect

RTD Input

When using a 4-wire RTD, the effect of lead resistance is eliminated and has no impact on accuracy. However, a 3-wire sensor will not fully cancel lead resistance error because it cannot compensate for imbalances in resistance between the lead wires. Using the same type of wire on all three lead wires will make a 3-wire RTD installation as accurate as possible. A 2-wire sensor will produce the largest error because it directly adds the lead wire resistance to the sensor resistance. For 2- and 3-wire RTDs, an additional lead wire resistance error is induced with ambient temperature variations. The table and the examples shown below help quantify these errors.

Sensor Input

Approximate Basic Error

 

 

4-wire RTD

None (independent of lead wire resistance)

3-wire RTD

± 1.0 Ω in reading per ohm of unbalanced lead wire

 

resistance (Unbalanced lead wire resistance =

 

maximum imbalance between any two leads.)

2-wire RTD

1.0 Ω in reading per ohm of lead wire resistance

 

 

Examples of Approximate Lead Wire Resistance

Effect Calculations

Given:

Total cable length = 150 m

Imbalance of the lead wires at 20 °C = 0.5 Ω Resistance/length (18 AWG Cu) = 0.025 Ω/Ω °C Temperature coefficient of copper (αCu) = 0.0039 Ω/Ω °C Temperature coefficient of platinum (αPt) = 0.00385 Ω/Ω °C Change in Ambient Temperature ( Tamb) = 25 °C

RTD Resistance at 0 °C (Ro) = 100 Ω (for Pt 100 RTD)

Pt100 4-wire RTD: No lead wire resistance effect.

Pt100 3-wire RTD:

Basic Error = Imbalance------------------------------of-------Lead---------------Wires-------------

 

 

Pt × Ro)

 

 

Cu) × ( Tamb) × (Imbalance of Lead Wires)

Error due to amb. temp. variation = ---------------------------------

-------

-----(---α----Pt-----)---×-----(--R-----o---)---------------------------------------------

 

 

Lead wire imbalance seen by the transmitter = 0.5 Ω

0.5 Ω

 

= 1.3 °C

Basic error = (---0.00385------------------------Ω------/----Ω-------°---C-----)---×-----(---100------------Ω-----)

Error due to amb. temp. var. of ± 25 °C

 

 

= (---0.0039--------------------Ω-------/----Ω-------°---C-----)---×-----(--25---------°---C-----)---×-----(---0.5----------Ω-----)-

= ±0.13 °C

(0.00385 Ω / Ω °C) × (100 Ω)

 

 

2-14

• Pt100 2-wire RTD:

Basic Error = Lead---------------Wire---------------Resistance----------------------------

 

Pt × Ro)

 

Cu ) × ( Tamb) × (Lead Wire Resistance)

Error due to amb. temp. variation = -------------------------------

----------(---α----Pt-----)---×-----(--R-----o---)-----------------------------------------

 

Lead wire resistance seen by the transmitter = 150 m × 2 wires ×

0.025 Ω/m = 7.5 Ω

 

7.5 Ω

= 19.5 °C

Basic error = (---0.00385------------------------Ω-------/---Ω-------°---C-----)----×----(---100------------Ω)-----

Error due to amb. temp. var. of ± 25 °C

 

= (---0.0039--------------------Ω-------/----Ω-------°---C-----)---×-----(--25---------°---C-----)---×-----(---7.5----------Ω)------

= ±1.9 °C

(0.00385 Ω / Ω °C) × (100 Ω)

 

Thermocouple or Millivolt Inputs

 

For integral mounting applications, the thermocouple can be connected 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.

Figure 2-12. Sensor Wiring Diagrams

Model 244E Sensor Connections

1 2 3 4

1 2

3

4

1 2

3 4

1 2 3 4

1 2 3 4

2-wire

 

 

*

 

**

4-wire

T/C

3-wire

RTD with

RTD

RTD

 

Comp.

RTD

and mV

and V

and V

Loop

and V

 

*Rosemount Inc. 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.

**The transmitters must be configured for a 3-wire RTD in order to recognize an RTD with a compensation loop.

644-0000B01A

2-15

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

Figure 2-13. Transmitter Power,

Sensor, and Configuration Terminals

Model 244EH

Model 244ER

Sensor

Sensor Terminal

Terminals

 

1 2 3 4

Configuration

 

Terminals

Failure Mode Switch

Failure Mode

Power/Configuration

Switch

Terminals

 

Power Terminal

 

244-1260B02D, 1105E01B

FAILURE MODE

Changing Switch Positions

The Models 244EH and 244ER features software driven alarm diagnostics and an independent circuit. These features are designed to provide separate backup alarm output in case the microprocessor, electronics, hardware, or software fails. The alarm levels are user selectable using the Failure Mode Switch. The position of the jumper determines the direction in which the output is driven (HI or LO) in case of alarm. The jumper switch feeds into the Digital-to-Analog (D/A) converter, which drives the proper alarm output even if the microprocessor fails.

The values to which the transmitter drives its output in failure mode depend on whether it is factory configured to standard or NAMUR-compliant operation. See “Failure Mode” on page A-2 for these parameters.

To determine the failure mode configuration of a transmitter, review the low and high alarm levels on the SERVICE menu provided by the configuration software.

To change the failure mode on the Model 244EH or 244ER transmitter, follow the steps described below.

1. If the transmitter is mounted in an enclosure, remove the enclosure cover.

2.Locate the orange failure mode switch. The switch is located near the power terminals on the Model 244EH and in the center of the front panel on the Model 244ER (see Figure 2-13).

3.Move the switch to the desired alarm setting. To set the failure mode to high alarm, position the switch toward the “HI” mark on the terminal block; to set the failure mode to low alarm, position the switch in the opposite direction.

4. Replace the enclosure cover (if applicable). Enclosure covers must be fully engaged to meet explosion-proof requirements.

2-16

Section

3 Operation

SAFETY MESSAGES

Warning

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-1 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-1 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-2 Intermittent Sensor Algorithm . . . . . . . . . . . . . . . . . . . . . page 3-5

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.

If the transmitter is installed in a measurement loop, disconnect power to the transmitter before beginning to set up the Model 244EC Configuration Interface. If the Model 244EC connects to a transmitter while the transmitter is powered in a measurement loop, the Model 244EC will shunt the electrical current, possibly resulting in a dangerous situation within the measurement loop.

POWER SUPPLY

Surges/Transients

The dc power supply should provide power with a ripple that is less than two percent of the nominal supply voltage. The total resistance load is the sum of the resistance of the signal leads and the lead 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.

The transmitter will withstand electrical transients of the energy level usually encountered in static discharges or induced switching transients. However, high-energy transients, such as those induced by lightning strikes, welding, heavy electrical equipment, or switch gears, can damage both the transmitter and the sensor.

To protect against high-energy transients, install Models 244E into a suitable connection head with the Rosemount Model 470 Transient Protector. The Model 470 prevents damage from transients induced by lightning, welding, heavy electrical equipment, or switching gears. Refer to the Model 470 Transient Protector Product Data Sheet (document number 00813-0100-4191) for more information.

3-1

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

Grounding

The transmitter will operate with the current signal loop either floating

 

or grounded. However, the extra noise in floating systems affects many

 

types of readout devices. If the signal appears noisy or erratic,

 

grounding the current signal loop at a single point may solve the

 

problem. The best place to ground the loop is at the negative terminal

 

of the power supply.

 

The transmitter is electrically isolated to 500 V ac rms, so the input

 

circuit also may be grounded at a single point. When using a grounded

 

thermocouple, the grounded junction serves as this point. Do not

 

ground the current signal loop at more than one point.

 

 

 

 

NOTE

 

 

Do not ground the signal wire at both ends.

CONFIGURATION

 

The Models 244EH and 244ER are designed to be configured using a

 

Model 244EC Configuration Interface connected to a Microsoft

 

Windows-compatible PC running the Models 244EH and 244ER

 

Configuration Software program. Configuration parameters include:

 

Sensor type

 

Number of wires

 

• 50/60 Hz filter selection

 

Engineering units

 

• Upper and lower range values

 

Damping value

 

Tag

 

Intermittent Sensor Detect

 

Each configuration parameter is explained in the on-line help provided

with the software. To access the on-line help, either click the HELP button on the main configuration window (see Figure 3-1) or choose a topic from the HELP menu.

3-2

Configuring a Single Transmitter

NOTE

See “Configuration Software” on page 2-9 for instructions on how to install the configuration software.

To configure a single Model 244EH or 244ER transmitter, perform the following procedure:

1. Disconnect power to the transmitter if the transmitter is installed in a measurement loop.

NOTE

Configuring a transmitter while it is powered in a measurement loop could cause the Model 244EC to shunt the current.

2.Set up the transmitter configuration system (see “Model 244EC Configuration Interface” on page 2-11) and open the program.

3.Select READ FROM XMTR from the menu bar to initiate the transmitter configuration. The main configuration window will appear (see Figure 3-1).

Figure 3-1. Models 244EH and 244ER

Configuration Software Main

Configuration Window

244E-244DF01

4.Set the configuration parameters. To view a complete list of options for each parameter, click the drop-down arrow in any parameter box. For example, on the main configuration screen, click the arrow in the UNITS box to view a list of available units.

NOTE

The configuration of the Intermittent Sensor Detect feature of the Model 244E Temperature Transmitter with version 5.5.1 software cannot be changed with the Model 244EC version 2.0 or earlier. For more information see Section 4: Maintenance and Troubleshooting.

3-3

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

Configuring Several

Transmitters Identically

NOTE

Each configuration parameter is explained in detail in the on-line help provided with the software. To access help, click the HELP button on the main configuration window (see Figure 3-1).

5.Click the SEND TO XMTR button to upload configuration information to the transmitter. The software will indicate whether the configuration is successful or unsuccessful. If the configuration succeeds, then go to step Step 6. If the configuration does not succeed, then refer to Section 4: Maintenance and Troubleshooting for a list of possible causes and repeat Step 5 until the transmitter configuration is successful.

6.Click the SAVE TO FILE button to save the configuration information for use with other transmitters.

NOTE

To ease the process of later finding a specific configuration file, name saved files according to a logical system and preserve the default .244 filename extension.

7.Click the CANCEL button to close the main configuration window.

To configure several Model 244E transmitters identically, perform the following procedure:

1.Configure a single transmitter according to “Configuring a Single Transmitter” on page 3-3 and save the configuration to a file.

2.Select OPEN from the FILE menu to open the saved configuration file.

3.Connect a new transmitter to the Configuration Interface.

4.Click the SEND TO XMTR button to upload the configuration information to the transmitter. The software will report whether the configuration is successful or unsuccessful. If the configuration succeeds, then go to Step 5. If the configuration does not succeed, then refer to Section 4: Maintenance and Troubleshooting for a list of possible causes and repeat Step 4 until the transmitter configuration is successful.

5.Repeat Steps 3 and 4 until all transmitters are configured.

6.Click the CANCEL button to close the main configuration screen.

3-4

Viewing the Process

Variable

Figure 3-2. Viewing the Process Variable with the 244EC

With version 2.0 and later of the Model 244EC Configuration Interface, users can view the measured temperature (PV) by selecting SERVICE from the menu bar of the main configuration window (see Figure 3-2). In order to view a valid PV, a temperature sensor must be connected to the Model 244E transmitter, and the transmitter must be configured properly for that sensor type. The PV will be automatically updated on the Model 244EC screen approximately two times per second.

244E-244EC01

INTERMITTENT SENSOR ALGORITHM

The electronics of the Model 244E transmitter contains an intermittent sensor algorithm that monitors the input signal during operation. The signal diagnostics routine, which occurs at each temperature update (every 500 milliseconds), eliminates output pulsing in an intermittent open sensor condition. Further, it validates the input signal before the digital-to-analog (D/A) conversion takes place.

If the process temperature changes, the intermittent sensor algorithm causes the transmitter to respond according to one of the three cases described below. Threshold value is the maximum change in reading (as a percentage of output range) within one update cycle (500 ms). The threshold value of the Model 244E is 2% of output range.

3-5

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

Case Examples

Case 1: Open Sensor

 

If the algorithm detects an open sensor, the transmitter immediately

 

goes into alarm (high or low, depending on the position of the failure

 

mode switch).

Case 2: Temperature Change Greater than the

Threshold Value(2% of Output Range)

If the algorithm detects a process temperature change ( T) greater than the threshold value (2 % of the output range), but which is not a true open sensor condition, the transmitter will go into a hold period. During the hold period, the transmitter determines whether or not this temperature measurement is valid by using the three additional measurement points. In the meantime, the output remains unchanged at the initial reading (Time = 0 ms).

A) If these next three readings are within the new threshold value (at Time = 500 ms), this measurement is validated. The output changes to reflect this and the transmitter is no longer in a hold period. In this case, the output delay is 1.75 to 2.00 seconds.

Step Changes Greater than Threshold Value

Input

Output without Algorithm

Output with Algorithm (Default)

0 500 1000 1500 2000 2500 3000 3500 4000 Time (in Microseconds)

B) If the reading drops back within the original threshold value (at Time = 0 ms) during the hold period, the transmitter interprets the reading(s) outside the threshold value as a spike, and the output changes to reflect the latest reading. The transmitter is no longer in a hold period, and the spike is not seen at the output.

Changes Greater than Threshold Value

Input

Output without Algorithm

Output with

Algorithm (Default)

0 500 1000 1500 2000 2500 3000 3500 4000 Time (in 500 ms increments)

C) If any of the next three measurements is outside the new threshold value (at Time = 500 ms), the output remains unchanged at the initial reading (Time = 0 ms). the transmitter remains in a hold period until four consecutive measurements are within the threshold value of the first in the series.

3-6

Intermittent Sensor

Algorithm and Damping

Step Changes Greater than Threshold Value

Input

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Total of All Step Changes

Output without Algorithm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Output with Algorithm (Default)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

500 1000 1500 2000 2500 3000 3500

4000

 

 

 

 

 

Time (in 500 ms increments)

D) If an open sensor is validated at the end of the first update cycle (Time = 500 ms), the output will go directly to alarm level. The original spike (at Time = 0 ms) will not be seen at the output.

Open Sensor

Input

False Output

Alarm

Output without Algorithm

Output with Algorithm (Default)

0 500 1000 1500 2000 2500 3000 3500 4000 Time (in 500 ms increments)

Case 3: Temperature Change Within the

Threshold Value (2 % of Range)

If the transmitter detects an input change that is within the threshold value, it reports the new value within one output cycle (500 ms).

If the transmitter has both intermittent sensor detect and damping enabled, the output reading is calculated by the following formula:

Damped Value = (P N) ´

æ

2T

+ N

è

-----------------ø

 

 

2T + U

 

P = previous damped value

N = new sensor value

T = damping time constant

U = update rate

The transmitter outputs the corresponding value on the damping curve within 1.75 to 2.0 seconds and updates the output reading every 500 ms thereafter, according to the damping equation above. At the value to which the damping time constant is set, the transmitter output is at 63% of the input change.

3-7

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

Figure 3-3. Damping Function when Input Change is Greater Than the Threshold Value

Figure 4-1 illustrates an example of intermittent sensor detect with damping enabled. If the temperature undergoes a step change greater than the threshold value, or from 100 degrees to 110 degrees, and the damping is set to 5.0 seconds, the transmitter calculates a new reading every 500 ms using the damping equation, but holds the output at 100 degrees for between 1.75 and 2.0 seconds. Within 1.75 and

2.0 seconds, the transmitter outputs the reading that corresponds to the damping curve at that time ( ), and continues to calculate and update the output reading every 500 ms thereafter ( ) according to the damping equation. After 5 seconds, the transmitter outputs

106.3 degrees, or 63% of the input change ( ), and the output continues to approach the input curve according to the equation above.

NOTE

If the damping time constant is set between 0 and 2 seconds, the transmitter does not report the output change until the intermittent sensor algorithm validates the input signal. After validating the input signal, the transmitter outputs the value that corresponds to the damping curve at that time.

644-644_02A

Intermittent Sensor Detect

(Advanced Feature)

NOTE

The Intermittent Sensor Detect feature is not available when using a Model 244EH with software revision 5.5.1. To determine the software version of a Model 244E temperature transmitter, first connect the transmitter to the Model 244EC configurator, open the Model 244EC software configuration tool, and then choose “service” from the Model 244EC software menu.

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 0.7 seconds). By default, the transmitter is shipped with the Intermittent Sensor Detect feature switched ON. In most applications, this is the preferred setting. The Intermittent Sensor Detect feature can be switched ON or OFF with the Model 244EC. The setting of this feature cannot be changed when using a Model 244E with version 5.5.1 software and a Model 244EC version 2.0 or earlier.

3-8

Implementation

Figure 3-4. Open Sensor Response

(Three Cases)

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 2% of the output range will be tracked normally by the transmitter’s output. A T greater than 2% of the output range will activate the intermittent sensor algorithm. True open sensor conditions will cause the transmitter to go into alarm.

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 output delay due to the intermittent sensor algorithm will be eliminated.

The Intermittent Sensor Detect feature can be turned ON or OFF using a Model 244E transmitter with software version 5.4.1 or earlier with the Model 244EC software configuration tool when the transmitter is connected to the Model 244EC Configurator.

Turning the Intermittent Sensor Detect feature OFF 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 less than 0.5 seconds in either direction (see Figure 3-4) up to100% of output range.

(mA)

25

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20

 

 

 

 

 

 

 

 

 

 

High Alarm

 

 

 

 

 

 

Output

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

 

 

 

 

 

Normal open sensor responses

 

 

 

Transmitter

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

 

 

 

 

 

 

A false temperature output in

 

 

 

 

 

 

 

 

 

 

 

either direction up to the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

threshold value (100 % of output

 

 

 

 

5

 

 

 

 

 

 

range if Intermittent Sensor Detect

 

 

 

 

 

 

 

 

 

 

is OFF) is possible when an open

 

 

 

 

 

 

 

 

 

 

 

sensor condition is detected.

 

 

03

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

644

 

0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

 

 

 

 

 

 

 

Time (seconds)

 

 

 

 

 

 

 

644-

Unless rapid response rate is necessary, the suggested setting of the Intermittent Sensor Detect mechanism is ON.

3-9

Section

4 Maintenance and

Troubleshooting

SAFETY INFORMATION

Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-1 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-1

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.

Warning

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

To clarify error messages that do not appear in this section, contact one of the technical support managers listed at the beginning of this manual.

TROUBLESHOOTING

Model 244EH software version 5.5.1

To determine the software version of a Model 244E temperature transmitter, first connect the transmitter to the Model 244EC configurator, open the 244EC software configuration tool, and then choose “Service “from the 244EC software menu.

The configuration of the Intermittent Sensor Detect feature of the Model 244E Temperature Transmitter with version 5.5.1 or greater software cannot be changed with the Model 244EC version 2.0.0 or earlier. If you attempt to change the configuration of this feature and then click the SEND TO XMTR button, the following screen will appear.

SCRNDUMP-244E-STATUS

4-1

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

The “Information Transmitter UNSUCCESSFUL” message appears because the transmitter did not accept the change made in the Intermittent Sensor Detect field. However, any other configuration changes sent at the same time as the Intermittent Sensor Direct change will be sent successfully. These other configuration changes can be verified by clicking on the READ XMTR button.

TABLE 4-1. Models 244EH and 244ER

Troubleshooting Chart

Error Message

Cause and Possible Solutions

 

Cannot Open 244E

The Models 244EH and 244ER Configuration Software is

 

Communications Device Driver

not working properly. Reinstall the software.

 

 

 

 

Cannot print

Computer cannot find or does not recognize a printer

 

 

connected to it. Verify that the computer is connected to a

 

 

suitable printer.

 

Cannot write to <filename>

The disk is write-protected or full. Verify that the disk is

 

 

not write-protected and that there is sufficient free space

 

 

available.

 

 

 

 

Error reading <filename>

The file’s format may have been corrupted. Try reading a

 

 

backup of the file.

 

Error writing to <filename>

The disk may have been corrupted or the filename is not

 

 

valid. Try saving under a different filename.

 

 

 

 

Field device did not respond

The transmitter did not respond to the inquiry made by the

 

 

software. Verify all connections in the configuration

 

 

system. Verify that the transmitter is functional.

 

Information transfer

See “Model 244EH software version 5.5.1” on page 4-1.

 

UNSUCCESSFUL

Some configuration information was not properly

 

 

transmitted from the configuration program to the

 

 

transmitter. Verify all connections in the configuration

 

 

system.

 

 

 

 

Invalid user entry

The entered values are not within the capabilities of the

 

 

transmitter. Check the transmitter specifications, then

 

 

adjust the range and damping values as necessary.

 

Is not a proper 244E config file

The file is not readable by the configuration software. Try

 

 

another file.

 

 

 

 

No response from transmitter

The configuration software did not connect to a

 

 

transmitter. Verify all connections in the configuration

 

 

system.

 

WARNING—Battery low

The battery for the configuration interface is running low

 

indication received

on voltage. Replace the battery.

4-2

Appendix

A Reference Data

TRANSMITTER SPECIFICATION

Functional

Transmitter Specification . . . . . . . . . . . . . . . . . . . . . . . . . . page A-1 Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-6 Dimensional Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-9

Inputs

User selectable using the Model 244EC Configuration Interface and the Models 244EH and 244ER configuration software; sensor terminals rated to 42.4 V dc. See Table A-2 on page A-3.

Output

Two-wire 4–20 mA, linear with temperature for RTDs and thermocouples, and linear with input for millivolts and ohms

Isolation

Input to output isolation tested up to 500 V ac rms (707 V dc) at 50/60 Hz

Power Supply

External power supply required. The transmitters operate on 12.0 to 42.4 V dc terminal voltage. Transmitter power terminals rated to 42.4 V dc.

Load Limitations

 

 

 

 

 

 

Maximum Load = 43.5 3 (Supply Voltage – 12.0)

 

 

1322

4–20 mA dc

 

 

 

 

 

 

 

 

 

(Ohms)

1000

 

 

 

 

 

750

 

 

 

 

 

 

 

 

 

 

 

Load

500

 

Operating

 

24401A-244

250

 

Region

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

10

20

30

40

42.4

 

 

12.0

Supply Voltage (V dc)

 

 

 

 

 

 

Ambient Temperature Limits

Operating

Storage

–40 to 85 °C (–40 to 185 °F)

–50 to 120 °C (–58 to 248 °F)

A-1

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

Failure Mode

The values that the transmitter drives its output to in failure mode depend on whether it is factory configured to standard or NAMUR-compliant operation. The values for standard and NAMUR-compliant are as follows:

TABLE A-1. Operation Parameters

 

Standard

NAMUR-Compliant

Linear Output:

3.9 I 20.5 mA

3.8 I 20.5 mA

Fail High:

21 I 23 mA (default)

21 I 23 mA (default)

Fail Low:

I 3.75 mA

I 3.6 mA

Performance

Humidity Limits

0 to 99% relative humidity, non-condensing

Turn-on Time

Performance within specifications is less than 5.0 seconds after power is applied to the transmitter

Update Time

Approximately 0.5 seconds

The Models 244EH and 244ER maintain a specification conformance of at least 3s.

Stability

±0.1% of span or 0.1 °C, whichever is greater, over 12 month period

Power Supply Effect

Less than ±0.005% of span per volt

Vibration Effect

The transmitters tested to the following specifications with no effect on performance:

Frequency

Vibration

10 to 60 Hz

0.21 displacement

 

 

60 to 2000 Hz

3 g peak acceleration

 

 

CE Electromagnetic Compatibility Compliance Testing

The Models 244EH and 244ER meet all requirements listed under IEC 61326: Amendment 1, 1998.

A-2

Accuracy

TABLE A-2. Model 244E Input Options and Accuracy.

Sensor

Sensor

Input

Recommended

 

Options

Reference

Ranges

Min. Span(1)

Accuracy (whichever is greater)

2-, 3-, 4-wire RTDs

 

°C

°F

°C

°F

 

 

 

 

 

 

 

 

Pt 100

IEC 751, 1995 (α = 0.00385)

–200 to 850

–328 to 1562

10

18

0.05% of span + 0.15 °C or 0.2 °C

Pt 100

JIS 1604, 1981 (α = 0.003916)

–200 to 645

–328 to 1093

10

18

0.05% of span + 0.15 °C or 0.2 °C

Pt 200

IEC 751, 1995 (α = 0.00385)

–200 to 850

–328 to 1562

10

18

0.01% of span or 0.4 °C

PT 500

IEC 751, 1995 (α = 0.00385)

–200 to 850

–328 to 1562

10

18

0.01% of span or 0.3 °C

Pt 1000

IEC 751, 1995 (α = 0.00385)

–200 to 300

–328 to 572

10

18

0.01% of span or 0.3 °C

Ni 120

Edison Curve No. 7

–70 to 300

–94 to 572

10

18

0.01% of span or 0.2 °C

 

 

 

 

 

 

 

Cu 10

Edison Copper Winding No. 1

–50 to 250

–58 to 482

10

18

0.5% of span or 1.5 °C

Thermocouples(2)

 

 

 

 

 

 

Type B(3)

NIST Monograph 175, IEC 584

100 to 1820

212 to 3308

25

40

0.2% of span or 1.0 °C

Type E

NIST Monograph 175, IEC 584

–50 to 1000

–58 to 1832

25

40

0.1% of span or 0.5 °C

 

 

 

 

 

 

 

Type jJ

NIST Monograph 175, IEC 584

–180 to 760

–292 to 1400

25

40

0.1% of span or 0.5 °C

Type K

NIST Monograph 175, IEC 584

–180 to 1372

–292 to 2502

25

40

0.1% of span or 1.0 °C

 

 

 

 

 

 

 

Type N

NIST Monograph 175, IEC 584

–200 to 1300

–328 to 2372

25

40

0.1% of span or 1.0 °C

Type R

NIST Monograph 175, IEC 584

0 to 1768

32 to 3214

25

40

0.1% of span or 1.0 °C

 

 

 

 

 

 

 

Type S

NIST Monograph 175, IEC 584

0 to 1768

32 to 3214

25

40

0.1% of span or 1.0°C

Type T

NIST Monograph 175, IEC 584

–200 to 400

–328 to 752

25

40

0.1% of span or 0.5 °C

 

 

 

 

 

 

 

DIN Type L

DIN 43710

–200 to 900

–328 to 1652

25

40

0.1% of span or 0.5 °C

DIN Type U

DIN 43710

–200 to 600

–328 to 1112

25

40

0.1% of span or 0.5 °C

 

 

 

 

 

 

 

Type

ASTME 988-96

0 to 2000

32 to 3632

25

40

0.1% of span or 1.0 °C

W5Re/W26Re

 

 

 

 

 

 

Millivolt Input

 

–10 to 100 mV

 

3 mV

0.025 mV + 0.003% of span

 

 

 

 

2-, 3-, 4-wire Ohm Input

0 to 2000 ohms

20 ohm

0.75 Ω + 0.03% 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)Total digital accuracy for thermocouple measurement: sum of digital accuracy +0.5 °C (cold junction accuracy)

(3)Accuracy for NIST Type B thermocouple is ±3.0 °C from 100 to 300 °C.

When using a Pt 100 (α = 0.00385) sensor input with a 75 to 150 °C range, the accuracy will be 0.05% of span + 0.15 °C or 0.20 °C, whichever is greater. Sample Calculation:[0.0005 (150-75) + 0.15] = 0.19 °C, which is less than 0.20 °C, so the accuracy equals 0.20 °C.

A-3

= 0.97°C

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

Ambient Temperature Effect

Transmitters can be installed in locations where the ambient

 

temperature is between –40 and 85 °C (–40 and 185 °F). At the factory,

 

each transmitter is individually characterized over this ambient

 

temperate range. This special manufacturing technique is

 

accomplished through hot and cold temperature profiling with

 

individual adjustment factors programmed into each transmitter. The

 

transmitters automatically adjust for component temperature drift

 

caused by changing environmental conditions.

 

TABLE A-3. Models 244E Ambient Temperature Effects per 1 °C (1.8 °F)

 

 

 

 

 

 

 

 

Sensor Options(1)

Fixed Value

% of reading

 

% of Span

 

 

(if reading > 0)

(if reading is < 0)

 

 

 

 

 

 

 

2-, 3-, 4-wire RTDs

 

 

 

 

 

 

 

 

 

 

 

PT 100 (a = 0.00385)

0.003 °C

 

+0.001% of span

Pt 100 (a = 0.003916)

0.003 °C

 

0.001% of span

Pt 200

0.004 °C

 

0.001% of span

Pt 500

0.003 °C

 

0.001% of span

 

 

 

 

 

 

Pt 1000

0.003 °C

 

0.001% of span

Ni 120

0.003 °C

 

0.001% of span

 

 

 

 

 

 

Cu 10

0.03 °C

 

0.001% of span

Thermocouples

 

 

 

 

 

 

 

 

 

 

 

Type B (100 °C £ reading < 300 °C)

0.064 °C

–0.011

 

0.001% of span

(300 °C £ reading < 1000 °C)

0.040 °C

–0.025

 

0.001% of span

(reading ³ 1000 °C)

0.014 °C

 

0.001% of span

Type E

0.005 °C

–0.00043

 

–0.0043

0.001% of span

 

 

 

 

 

 

Type J, K, DIN L

0.006 °C

–0.00054

 

–0.0025

0.001% of span

Type N

0.007 °C

–0.00036

 

0.001% of span

 

 

 

 

 

 

Type R, S (reading < 200 °C)

0.023 °C

–0.0036

 

0.001% of span

(reading ³ 200 °C)

0.016 °C

 

0.001% of span

Type T, DIN U

0.007 °C

 

–0.043

0.001% of span

 

 

 

 

 

 

Type W5Re/W26Re

0.023 °C

–0.0036

 

0.001% of span

 

0.016°C

 

 

 

Millivolt Input

0.0005 mV

 

0.001% of span

 

 

 

 

 

 

2-, 3-, 4-wire Ohm

0.0084 W

 

0.001% of span

(1) Change in ambient is with reference to the calibration temperature of the transmitter 68 °F (20 °C) from factory.

When using a Type J thermocouple with a –50 °C to 600 °C temperature range at an ambient temperature of 60 °C and a reading of –25 °C, the ambient temperature effect according to °C is: [fixed value

(a) + (% of reading (b) 3 reading) + (% of span (c) 3 span)] = [0.006 + (– 0.000025 3 (–25)) + (0.00001 3 650)] = 0.013 °C per °C. With the ambient temperature 40 °C above reference condition temperature, the total ambient temperature effect is: 40 3 0.013 = 0.52 °C.

When using a Type J thermocouple with a –50 °C to 600 °C temperature range at an ambient temperature of 60 °C and a reading of 525 °C, the ambient temperature effect according to °C is:[fixed value

(a) + (% of reading (b) 3 reading) + (% of span (c) 3 span)] = [0.006 + (0.0000054 3 525) + (0.00001 3 650)] = 0.015 °C per °C. With the ambient temperature 40 °C above reference condition temperature, the total ambient temperature effect is: 40 3 0.015 = 0.6 °C.

The worst case error would be: Reference Accuracy + CJC Accuracy +

Temp Effects = 0.65 °C + 0.5 °C + 0.52 °C = 1.67 °C. Total Probable

Error: 0.652 + 0.52 + 0.522

A-4

Physical

Electrical Connections

Power and Sensor Terminals

Model 244EH

Compression screws permanently

Clips permanently fixed to

 

fixed to terminal block

terminal block

 

 

 

Model 244ER:

Compression screw permanently

Clips permanently fixed to

 

fixed to front panel

front panel

 

 

 

WAGO® spring clamp terminals are optional (option code G5)

Model 244EC Configuration

Interface

Materials of Construction

Construction Material for the Electronics Housing and Terminal Block

Model 644H

Noryl® glass reinforced

Model 644R:

Lexan® polycarbonate

Mounting

The Model 244EH installs in a connection head or universal head mounted directly on a sensor assembly, apart from a sensor assembly using a universal head, or to a DIN rail using an optional mounting clip. The Model 244ER mounts directly to a wall or to a DIN rail.

Weight

Code

Options

Add(1)

Model 244EH

Head Mount

78 (2.75)

 

 

 

 

J5, J6

Universal Head

520

(18.43)

Model 644R

Rail Mount

173

(6.10)

(1) All weights are in grams (ounces).

Enclosure Ratings

Option codes J5 and J6 are NEMA 4X, IP66, and IP68. Option code J6 is CSA Enclosure Type 4X

Power Supply

9 V dc battery or wall adapter

 

Output voltage rating:

8 to 12 V dc

Output current rating:

100 mA minimum

 

 

Connector:

3.5 mm diameter male plug, positive tip, negative sleeve

 

 

To meet CSA ordinary location approval requirements, the wall power adapter must be CSA listed with a Class 2 output. To meet FM ordinary location approval requirements, the wall power adapter must be listed by a Nationally Recognized Test Laboratory (such as FM or UL) with a Class 2 output.

Ambient Temperature Limits

32 to 104 °F (0 to 40 °C)

Humidity Limits

0 to 99% relative humidity, non-condensing

A-5

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

ORDERING INFORMATION

TABLE A-4. Model 244EH and 244ER Temperature Transmitter Ordering Information

 

 

 

= Available

 

 

 

 

— = Not available

 

 

 

 

 

Model

Product Description

 

Head

Rail

 

Mount

Mount

 

 

 

 

 

244EH

Head Mount Temperature Transmitter

 

 

 

 

 

 

244ER

Rail Mount Temperature Transmitter

 

Code

Hazardous Area Certifications

Enclosure Purchase

Head

Rail

Required?

Mount

Mount

 

 

 

 

 

E5

FM Explosion-Proof Approval

Yes

I5

FM Intrinsic Safety and Non-Incendive Approval

No*

 

 

 

 

 

K5

FM Intrinsic Safety, Non-Incendive, and Explosion-Proof Approval Combination

Yes

I6

CSA Intrinsic Safety and Non-Incendive Approval

No*

 

 

 

 

 

C6

CSA Intrinsic Safety, Non-Incendive, and Explosion-Proof Approval Combination

Yes

N1

CENELEC/BASEEFA Type n Approval

Yes

 

 

 

 

 

ED

CENELEC/KEMA Flameproof Approval

Yes

I1

CENELEC/BASEEFA Intrinsic Safety Approval

No*

 

 

 

 

 

E7

SAA Flameproof Approval. Consult factory for availability.

Yes

N7

SAA Type N Approval. Consult factory for availability

Yes

 

 

 

 

 

I7

SAA Intrinsic Safety Approval. Consult factory for availability.

No*

NA

No Approval

No*

* Transmitters with intrinsic safety approvals can be ordered without enclosures. However, to meet intrinsic safety requirements, the transmitter must be installed in an enclosure with IP20 or higher rating. Model 244EH transmitters ordered with enclosure options J5 or J6 meet this requirement.

Code

Options

 

 

 

 

 

 

Assembly Options (Model 244EH Only)

 

 

 

 

 

X1

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 Teflon (PTFE) tape, unwired)

X3

Assemble Transmitter to a Sensor Assembly (wrench tight, Teflon (PTFE) where appropriate, fully wired)

 

 

 

Note: If ordering X1, X2, X3, specify the same code on the sensor model number.

 

 

Option codes X1 and X3 are not available with CSA Approvals (Hazardous Area Certifications C6 or I6)

 

 

 

Enclosure Options

 

 

 

 

 

 

Threaded Style Temperature Sensor Users (Americas and Asia Pacific)

 

 

 

Remote/Integral Mount

 

 

 

 

 

 

 

 

 

J6

Universal Head (Junction Box), Aluminum Alloy with 2-in. SST Pipe Bracket (M20 Entries)

 

DIN Plate Style Temperature Sensor Users (EMEA-Europe, Middle East, and Africa)

 

 

 

Remote Mount

 

 

 

 

 

 

 

 

 

J5

Universal Head (Junction Box), Aluminum Alloy with 2-in. SST Pipe Bracket (M20 Entries)

J6

Universal Head (Junction Box), Aluminum Alloy with 2-in. SST Pipe Bracket (1/2–14 NPT Entries)

 

Integral Mount

 

 

 

 

 

 

*****Order connection head through Volume 2 of the Rosemount Temperature Sensor and Accessories Product Data Sheet

 

 

 

(document number 00810-0101-2654) sensor model number*****

 

 

 

 

 

 

 

 

 

 

Configuration Options

 

 

 

 

 

A1

Analog Output Levels Compliant with NAMUR-Recommendations NE 43:June 1997

 

 

 

 

CN

Analog Output Levels Compliant with NAMUR-Recommendations NE 43: June 1997: Alarm Configuration Low

F6

60 Hz Line Voltage Filter

 

 

 

 

 

 

 

 

 

 

 

Calibration Options

 

 

 

 

 

C4

5-Point Calibration. Use Q4 option to generate a calibration certificate

 

 

 

 

Q4

Calibration Certificate. 3-Point standard; use C4 with Q4 option for a 5-point calibration certificate.

 

Accessory Options (Model 244EH only)

 

 

 

 

 

 

 

 

 

G1

External Ground Screw. Only available with enclosure options J5 or J6.

G2

Cable Gland. Only available with option code J5.

 

 

 

 

 

 

G3

Cover Chain. Only available with enclosure options J5 or J6. Not available with LCD meter option code M5.

G5

WAGO Spring Clamp Terminals

 

 

 

 

 

 

 

 

 

Typical Model Number – Americas and Asia Pacific:

244EH

E5

X1 J6 F6

 

 

Typical Model Number – Europe, Middle East, Africa:

244EH

ED

X1

 

 

 

 

 

 

 

 

 

A-6

TABLE A-5. Model 244EC Configuration Interface Ordering Information

 

 

= Available

 

 

— = Not available

 

 

 

Model

Product Description

244EH

 

 

244EC Model 244EC Configuration Interface Hardware and Software

 

 

Typical Model Number: 244EC

 

 

 

 

TABLE A-6. Transmitter Accessories

Part Description

Part Number

Aluminum Allow Universal Head, Standard Cover—M20 Entries

00644-4420-0002

 

 

Aluminum Allow Universal Head, Standard Cover— 1/2-14 NPT Entries

00644-4420-0001

Ground Screw Assembly Kit

00644-4431-0001

 

 

Models 244EH and 244ER Configuration Software (Four 3.5” Diskettes)

00244-3401-0003

Black MINIGRABBERConfiguration Lead

C539920001

Red MINIGRABBER Configuration Lead

C539920002

Universal Clip for Rail or Wall Mount (Model 244ER only)

03044-4103-0001

 

 

Kit, Hardware for Mounting a Model 244EH to a DIN rail (includes clips for symmetrical and asymmetrical rails)

00644-5301-0010

Kit, Hardware for Retrofitting a Model 244EH in an existing Threaded Sensor Connection Head (former option code L1)

00644-5321-0010

 

 

24 Inches of Symmetric (Top Hat) Rail

03044-4200-0001

24 Inches of Asymmetric (G) Rail

03044-4201-0001

 

 

Ground Clamp for symmetric or asymmetric rail

03044-4202-0001

End Clamp for symmetric or asymmetric rail

03044-4203-0001

 

 

Blank Transmitter Configuration Labels (sheet of 48)

00644-5154-0001

Snap Rings Kit (used for assembly to DIN sensor)

00644-4432-0001

A-7

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

Ordering Flameproof and Explosion-proof Approvals for Temperature Assemblies

Both flameproof and explosion-proof protection depend on the enclosure type. Compliance with flameproof and explosion-proof approvals requires an appropriately approved assembly, including the sensor. The Model 244EH requires an appropriate enclosure for approved use in locations requiring flameproof or explosion-proof installations.

Orders that include enclosure options J5 or J6 must be ordered from the Model 244EH ordering information table.

When ordering a complete DIN style assembly, select the appropriate connection head from Volume 2 of the Rosemount Temperature Sensors and Accessories PDS (document number 00813-0101-2654).

Standard Configuration

Unless specified, transmitter will be shipped as follows:

Standard Configuration(1)

Sensor Type:

RTD, PT 100 (α = 0.00385, 4-wire)

4 mA Value:

0 °C

20 mA Value:

100 °C

 

 

Damping:

5 seconds

Failure Mode:

High/Upscale

 

 

LIne Voltage Filter:

50 Hz

Tag

See “Tagging” below

(1)All standard configuration settings may be changed in the field with the Model 244EC Configuration Interface.

Custom Configuration

The transmitter can be ordered with custom configuration. Use Table A-7 to determine the requirements when specifying the custom configuration.

TABLE A-7. Custom Configuration Requirements/Specification.

Option Code

Requirements/Specification

A1: NAMUR-compliant

See Table A-1 on page A-2

 

 

 

CN: NAMUR-Compliant, Low Alarm

See Table A-1 on page A-2

C4: Five Point Calibration

Will include five-point calibration at 0, 25, 50, 75,

 

and 100% analog and digital output points. Use

 

with Rosemount Calibration Certificate Q4.

 

 

 

F6: 60 Hz Line Filter

Calibrated to a 60 Hz line voltage filter instead of

 

the standard 50 Hz filter

Tagging

 

 

 

 

Hardware Tag

Software Tag

 

 

 

 

No charge

Tagged in accordance with customer requirements

Tags are adhesive labels

Permanently attached to transmitter

Character height is 1/16-in (1.6 mm)

The transmitter can store up to 30 characters in its memory

Transmitter can be ordered with different software and hardware tags

If the software tag characters are not specified, the software tag will default to the first 30 characters of the hardware tag.

A-8

DIMENSIONAL DRAWINGS

Transmitter

Model 244ER

 

Model 244EH

 

Shown with Standard Compression Screw Terminals

 

 

60 (2.4)

Sensor Terminals

WAGO® Spring

33 (1.3)

 

 

Clamp Sensor

 

 

Terminals

 

 

Communication

24 (1.0)

 

Terminals

Failure Mode Switch

 

Power Terminals

 

 

 

Power Terminals

 

 

 

 

 

33 (1.30)

 

 

Shown with WAGO® Spring Clamp Terminals

 

 

 

60 (2.4)

82

1101A01A

 

33 (1.3)

Standard Sensor

 

(3.2)

 

 

 

Terminals

 

 

1105E01A.-

 

36

Power

Switch

 

 

Communication

24 (1.0)

 

104

Terminals

Failure Mode

 

(4.1)

 

 

 

(1.4)

644

Terminals

34 (1.33)

 

 

 

Dimensions are in millimeters (inches)

644-1360B02A

644-1360A02A

Enclosure and Model 244EC Configuration Interface

Threaded-Sensor Universal

Integral DIN Style Sensor

 

Model 244EC

Head (option code J5 or J6)(1)

Connection Head(2)

Configuration Interface

112 (4.41)

 

 

0.61 m (2 ft)

96 (3.76)

 

 

 

 

Configuration Leads

Label

104 (4.09)

 

 

 

95 (3.74)

 

114 (4.5)

 

78 (3.06)

84 (3.3)

38 (1.5)

75 (2.93)

100 (3.93)

 

 

SST “U” Bolt

 

 

1.83 m (6 ft) Ribbon Cable

 

 

 

Mounting,

 

 

 

2-inch Pipe

 

 

 

Dimensions are in millimeters (inches)

644-4420A02A, 4410AO1A, 3300A01A

(1)A “U” Bolt is shipped with each universal head unless assembly option code X1, X2, or X3 is ordered. However, since the head can be integrally mounted to the sensor, it may not need to be used.

(2)Note: The DIN Style Integral sensor connection head is only available through Volume 2 of the sensors product data sheet.

A-9

Appendix

B Approvals

SAFETY MESSAGES

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page B-1 Hazardous Locations Installations . . . . . . . . . . . . . . . . . . page B-1 Locations Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . page B-2 Installation Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page B-4

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.

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).

HAZARDOUS LOCATIONS INSTALLATIONS

The Models 244E are available with circuitry that is suitable for intrinsically safe operation. The Model 244EH is available with optional explosion-proof enclosures and can be specified for non-incendive operation. Individual transmitters are clearly marked with a tag indicating the approvals they carry.

To maintain certified ratings for installed transmitters, they must be installed 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 certification.

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).

B-1

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

LOCATIONS CERTIFICATIONS

Factory Mutual (FM) Approvals

E5 Explosion-Proof for Class I, Division 1, Groups B, C, and D. Dust-Ignition Proof for Class II, Division 1, Groups E, F, and G. Dust-Ignition Proof for Class III, Division 1 hazardous locations when installed in accordance with Rosemount Drawing 00644-1049. Non-Incendive for Class I, Division 2, Groups A, B, C, and D. Ambient temperature limits: –50 to 85 °C. Conduit seal not required for compliance with NEC 501-5a(1). Temperature Code T5 (Tamb = 85 °C)

NOTE:

Approval E5 is only available with 244EH option codes J5 and J6.

I5 Intrinsically Safe for Class I, II, III, Division 1, Groups A, B, C, D, E, F, G; Non-incendive for Class I, Division 2, Groups A, B, C, D. Ambient temperature limits: –50 to 60 °C when installed in accordance with Rosemount Drawing 00644-0009.

FM Entity Parameters: See installation drawing identified on the transmitter approval label and Appendix C: Models 644 and 244E Temperature Transmitters Manual Supplement for entity parameters.

K5 Combination of E5 and I5

NOTE:

Approval K5 is only available with Model 244EH option codes J5 and J6.

Canadian Standards Association (CSA) Approvals

I6 Intrinsically safe for Class I, Division 1, Groups A, B, C, and D when connected in accordance with Rosemount drawing 00644-1064 (see Appendix C: Models 644 and 244E Temperature Transmitters Manual Supplement for connection parameters).

C6 Combination of I6 and the following: Explosion-Proof for Class I, Division 1, Groups C and D. Dust-ignition proof for Class II, Division 1, Groups E, F, and G.

Dust-ignition proof for Class III, Division 1 hazardous locations when installed in accordance with Rosemount Drawing 00644-1059. Suitable for Class I, Division 2, Groups A, B, C, and D (must be installed in a suitable enclosure).

NOTE:

Approval C6 is only available with Model 244EH option code J6.

B-2

KEMA Approvals

ED ATEX II 2 G

Flameproof (Zone 1) (Model 244EH only)

EEx d IIC T6 (Tamb = –40 to 65 °C).

NOTE:

Flameproof certification is only available as a complete assembly with Rosemount universal head – option codes J5 or J6.

British Approvals Service for Electrical Equipment in Flammable Atmospheres (BASEEFA) Approvals

I1 ATEX II 1 G

Intrinsically Safe Operation (Zones 0)

EExia IIC T6 (Tamb = –60 to 40 °C) EExia IIC T4 (Tamb = –60 to 80 °C)

Entity Parameters: See appropriate approval certificate and Appendix C: Models 644 and 244E Temperature Transmitters Manual Supplement for entity parameters.

Special Conditions for Safe Use (X):

The transmitter must be installed so that its external terminals and communication pins are protected to at least IP20.

N1 ATEX II 3 G

Type ‘nL’ Operation Non-Incendive Approval (Zone 2 only)

Ex nL IIC T5 (Tamb = 70 °C)

(Type ‘nL’ certification is only available as a complete assembly with the Rosemount universal head, thermometer,

and thermowell.)

Standard Australia Quality Assurance Service (SAA)

NOTE

Consult factory for SAA availability.

I7 Intrinsic Safety,

Ex ia IIC T6 (Tamb = –40 to 40 °C) Ex ia IIC T4 (Tamb = –40 to 70 °C)

Entity Parameters: See appropriate approval certificate

Special Conditions for Safe Use (X):

The transmitter must be installed so that its external terminals and communication pins are protected to at least IP20.

B-3

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

INSTALLATION DRAWINGS

N7 Type N Approval,

Ex n IIC T5 (Tamb = 70 °C)

Special Conditions for Safe Use (X):

The assembly must be installed such that its external terminals and communication pins are protected to at least the requirements of IP54.

E7 Flameproof Approval (Model 244EH only)

Ex d IIC T6

NOTE:

Flameproof certification is only available as a complete assembly with Rosemount universal head – option codes J5 or J6.

Gostandart

Tested and approved by the Russian Metrological Institute GOSTANDART.

The Model 244EC Configuration Interface is approved for Factory Mutual (FM) and Canadian Standards Association (CSA) Ordinary Locations

The installation guidelines presented by the drawings must be followed in order to maintain certified ratings for installed transmitters.

Rosemount Drawing 00644-1064, 1 Sheet,

Canadian Standards Association Intrinsic Safety Installation Drawing

Rosemount Drawing 00644-1059, 1 Sheet;

Canadian Standards Association Explosion-Proof Installation Drawing

Rosemount Drawing 00644-0009, 1 Sheet

Factory Mutual Intrinsic Safety Installation Drawing

Rosemount Drawing 00644-1049, 1 Sheet;

Factory Mutual Explosion-proof 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).

B-4

Figure B-1. Canadian Standards

Association (CSA) Intrinsic Safety

Installation Drawing 00644-1064,

Rev. AB

B-5

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

Figure B-2. Canadian Standards

Association (CSA) Explosion-Proof

Installation Drawing 00644-1059,

Rev. AA

644-1059A01A

B-6

Figure B-3. Factory Mutual (FM)

Intrinsic Safety Installation Drawing

00644-0009, Rev. AA

644-0009A01A

B-7

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

Figure B-4. Factory Mutual (FM)

Explosion-Proof Installation Drawing

00644-1049, Rev. AB

644-1049A01A

B-8

Appendix

C Models 644 and 244E

Temperature Transmitters

Manual Supplement

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

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

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

This manual supplement is intended to indicate the primary differences between the old and new Models 644 and 244E. These differences are as follows:

Transmitter design

Sensor Wiring Diagrams

Special Mounting Considerations

Specifications

C-1

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

OLD TRANSMITTER

Transmitter Design

Sensor Wiring Diagrams

Special Mounting

Considerations

Models 644H and 244EH

Models 644R and 244ER

 

 

Two Mounting Holes

 

Models 644 and 244E

 

 

 

1 2 3 4

1 2

3 4

1 2 3 4

1 2 3 4

1 2 3 4

0000B01B-

 

2-wire

3-wire *

RTD with** 4-wire

T/C and

 

RTD and

RTD

Comp.

RTD

mV

644

V

and V

Loop

and V

 

*Rosemount Inc. 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.

**The transmitters must be configured for a 3-wire RTD in order to recognize an RTD with a compensation loop.

Mounting a Model 644H to a DIN Rail

G-Rail

Top Hat Rail

 

1.

Assemble the appropriate rail clip (part number

 

 

 

 

00644-5301-0001).

 

 

 

2.

Attach the transmitter to a rail or panel.

 

 

 

3.

Attach the thermowell to the pipe or process container wall

 

 

5301B01B,D01B-644

 

and attach sufficient lengths of sensor lead wire. Tighten

 

 

 

 

 

 

 

the connection head cover.

 

 

 

4.

Run the sensor lead wires from to the sensor and set the

 

 

 

 

transmitter failure mode switch.

 

 

 

5.

Attach the sensor and power leads to the transmitter.

 

 

 

Use with an Existing Threaded Sensor Connection Head

 

 

 

To mount the Models 644H and 244EH in an existing L1 connection

 

 

5051A01A-644

head, assemble the Model 644H retrofit kit (part number

 

 

 

 

 

00644-5321-0001) to the transmitter as shown. Then mount the

 

 

 

assembly in the connection head.

 

 

 

 

 

Kit includes replacement

644-

 

 

 

bracket and screw

 

 

 

 

C-2

NEW TRANSMITTER

Transmitter Design

Sensor Wiring Diagrams

Special Mounting

Considerations

HART Communicator (Model 644H only)

Models 644H and 244EH

Models 644R and 244ER

Captive Mounting Screws and Springs

1360A02B-244

Hole in Middle

of Transmitter

 

Meter Connector

 

(Model 644H only)

644,

 

 

Models 644 and 244E

 

 

1 2 3 4

1 2

3 4

1 2 3 4

1 2 3 4

1 2 3 4

0000B01C-

2-wire

3-wire * RTD with** 4-wire

T/C and

 

RTD

RTD

Comp.

RTD

mV

644

and V

and V

Loop

and V

 

*Rosemount Inc. 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.

**The transmitters must be configured for a 3-wire RTD in order to recognize an RTD with a compensation loop.

Use with an Existing DIN Plate Style Sensor

 

 

 

1. Secure the bottom of the mounting screw sleeve

 

Springs

0000A02B-

transmitter mounting screws to assembly

 

with pliers. Remove the mounting screws and

 

 

 

springs.

 

 

 

2. Once the springs are removed, use the new

 

Mounting

SENSORS

the transmitter to the DIN plate and connection

Mounting

and

head. (Optional snap rings (part number

Screws

 

Screw

 

00644-4432-0001) are available to ease installation

 

 

Sleeves

 

 

to the existing DIN plate style sensor.)

 

 

 

Use with an Existing Threaded Sensor Connection Head

 

 

To mount the new Models 644H or 244EH to the existing

Existing

 

5321A01A,-

threaded sensor connection head (former option code L1),

 

Threaded Sensor

 

 

order the models 644H and 244EH retrofit kit (part number

 

 

Connection Head

 

 

00644-5321-0010). The fit includes a new mounting

 

 

 

 

 

bracket and all associated hardware necessary to facilitate

Model 644H or

 

 

the installation of the Models 644H and 244EH into the

Model 244EH

Kit includes

644

existing head.

 

 

replacement bracket

644-

 

 

and screw

To guarantee proper transmitter functionality and communication, your Model 275 HART Communicator should contain device revision Dev v5 DD v2 or higher. To check software device revision,

1.Turn on the communicator.

2.Select 1 Off-line, 1 New Configuration, Rosemount, 644 Temp

If you do not have this device revision, contact your local Rosemount representative for information on receiving an upgrade.

C-3

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

SPECIFICATIONS

 

 

Old

 

 

 

 

 

 

 

New

BASEFFA(1) Intrinsically Safe Installation Entity Parameters:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power Loop

Umax:in

 

30 V dc

 

 

 

30 V dc

 

 

 

Group II C

Imax:in

 

200 mA

 

 

 

200 mA

 

 

 

Wmax:in

 

1.0 W

 

 

 

1.0 W

 

0.67 W

Zones 0 and 1

 

 

T5 (– 40 Ta 40 °C)

 

T5 (– 60 Ta 40 °C)

• T6 (– 60 Ta 40 °C)

 

 

 

 

 

 

 

T4 (– 40 Ta 80 °C)

 

T4 (– 60 Ta 80 °C)

• T5 (– 60 Ta 50 °C)

 

Ceq

 

13.4 nF

 

 

 

10 nF

 

 

 

Sensor

Li

 

0 μH

 

 

 

0 μH

 

 

 

Uo

 

24.2 V dc

 

 

 

13.6 V dc

 

 

 

 

Io

 

33 mA

 

 

 

80 mA

 

 

 

 

Po

 

0.2 W

 

 

 

0.08 W

 

 

 

Cable Load

 

 

 

IIC

IIB

IIA

 

 

IIC

IIB

 

IIA

 

Co (μF)

 

 

0.2

0.6

1.6

 

 

0.7

5.1

 

18.5

 

Lo (mH)

 

 

31

93

248

 

 

5

23

 

48

Special Conditions for Safe Use: The apparatus must be installed such that its external terminals and

 

Special Conditions for Safe Use: The apparatus must be installed in an enclosure which

the communication pins are protected to at least IP20.

 

 

 

 

 

affords it a degree of protection of at least IP20. Non-metallic enclosures must have

 

 

 

 

 

 

 

 

 

a surface resistance of less than 1 GΩ, light alloy or zirconium enclosures must be

 

 

 

 

 

 

 

 

 

protected from impact and friction when installed.

CSA(2) Intrinsically Safe Installation Connection Parameters:

 

 

 

 

 

 

 

 

Class I

 

 

• 30 V or less, 330 ohms or more

 

T6 (– 50 Ta 40 °C)

 

• 30 V or less, 340 ohms or more

Div. 1

T5 (– 50 Ta 60 °C)

 

• 28 V or less, 300 ohms or more

 

T5 (– 50 Ta 60 °C)

 

• 28 V or less, 300 ohms or more

Groups A, B, C,

 

 

 

and D

 

 

• 25 V or less, 200 ohms or more

 

 

 

 

• 25 V or less, 240 ohms or more

 

 

 

 

 

 

 

 

 

 

• 22 V or less, 180 ohms or more

 

 

 

 

• 22 V or less, 190 ohms or more

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T4 (– 50 Ta 80 °C)

 

• 30 V or less, 330 ohms or more

 

 

 

 

 

 

 

 

 

 

 

• 28 V or less, 250 ohms or more

 

 

 

 

 

 

 

 

 

 

 

• 25 V or less, 240 ohms or more

 

 

 

 

 

 

 

 

 

 

 

• 22 V or less, 190 ohms or more

 

 

 

 

 

 

 

 

 

Class I

 

 

• 30 V or less, 150 ohms or more

 

T4 (– 50 Ta 80 °C)

 

• 30 V or less, 230 ohms or more

Div. 1

 

 

 

 

 

 

 

 

 

 

• 28 V or less, 200 ohms or more

Groups C and D

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• 25 V or less, 160 ohms or more

 

 

 

 

 

 

 

 

 

 

 

Factory Mutual(3)

Intrinsically Safe Installation

Entity Parameters:

 

 

 

 

 

 

 

Power Loop

Vi

 

30 V dc

 

 

 

30 V dc

 

 

 

Class I, II, and III

Ii

 

250 mA

 

 

 

240 mA

 

 

 

Pi

 

1.0 W

 

 

 

1.0 W

 

0.67 W

Div. 1

 

 

T5 (– 50 Ta 60 °C)

 

T5 (– 50 Ta 40 °C)

T6 (– 50 Ta 40 °C)

Groups A, B, C, D,

 

 

 

E, F, and G

 

 

 

 

 

 

T4 (– 50 Ta 80 °C)

T5 (– 50 Ta 50 °C)

 

 

 

 

 

 

 

 

 

 

 

 

Ci

 

0.008 μF

 

 

 

0.010 μF

 

 

 

 

Li

 

0 μH

 

 

 

0 μH

 

 

 

Sensor

Vt

 

10.7 V dc

 

 

 

13.6 V dc

 

 

 

 

It

 

15.3 mA

 

 

 

22 mA

 

 

 

 

Po

 

0.04 W

 

 

 

0.11 W

 

 

 

 

Ca

 

2.23 μF

 

 

 

0.8 μF

 

 

 

 

La

 

140 mH

 

 

 

60.0 mH

 

 

 

(1)For more information see approval certificate, Old: Model 644H: 95C2010X, Model 244E: 95C2019X; New: Model 644H: BAS00ATEX1033X, Model 244E: BAS00ATEX1034X

(2)For more information see Rosemount drawing 00644-1040, Rev. B (old) and 00644-1064, Rev AB (new).

(3)For more information see Rosemount drawing 00644-1056, Rev. B (old) and 00644-0009, Rev AA (new)

C-4

A

Alarm

see Failure mode

Ambient Temperature . . . . . . . .A-4

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

C

Changing Switch Positions . . . 2-16

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

244EC Interface

Ambient temperature . .A-5 Humidity limits . . . . . .A-5

Custom . . . . . . . . . . . . . . .A-8

Process variable . . . . . . . . . 3-5 Single Transmitter . . . . . . . 3-3

Standard . . . . . . . . . . . . . .A-8

Transmitters identically . . . 3-4 Configuration Interface . . . . . . 2-11

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

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

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

D

Dimensional Drawings . . . . . . .A-9

Configuration interface . . . .A-9

Enclosure . . . . . . . . . . . . . .A-9

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

E

Electrical considerations . . . . . . 1-3 Electrical connections . . . . .A-5 Surges and transients . . . . 3-1 Enclosure Ratings . . . . . . . . . . .A-5 Environmental considerations . . 1-3

F

Failure Mode . . . . . . . . . 2-16, A-2

Change switch position . . . 2-16

Switch . . . . . . . . . . . . . . . 2-16 Failure mode . . . . . . . . . . . . . 2-12 Field Wiring . . . . . . . . . . . . . . 2-12 Diagrams . . . . . . . . . . . . . 2-13

Sensor connections . . . . . . 2-13

G

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

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

Index

H

Humidity

244EC, limits for . . . . . . . . A-5

Transmitters . . . . . . . . . . . A-2

I

Inputs

2-13

RTD or Ohm . . . . . . . . . .

Thermocouple or Millivolt

2-15

Installation . . . . . . . . . . . . . .

.

2-1

Existing threaded sensor

. . 2-4

Flowchart . . . . . . . . . . . .

.

2-2

Head mount transmitters .

.

2-6

DIN plate style sensor . 2-5

Threaded Sensor . . . .

.

2-6

Mounting to a DIN rail . . .

2-4

Procedures . . . . . . . . . . .

.

2-5

Configuration software

2-9

Interface . . . . . . . . . .

2-11

Multichannel . . . . . .

.

2-9

Transmitter . . . . . . .

.

2-5

Rail clip hardware . . . . . .

.

2-4

Rail mount transmitters

. . 2-8

Integral mount sensor . 2-7

Threaded sensor . . . . .

2-8

Tools . . . . . . . . . . . . . . . .

.

2-2

Installation Drawings . . . . . .

. B-4

Intermittent Sensor Algorithm

. 3-5

Advanced feature . . . . . . .

.

3-8

Case Examples . . . . . . . .

.

3-6

Damping . . . . . . . . . . . . .

.

3-7

Implementation . . . . . . . .

.

3-9

Introduction . . . . . . . . . . . . . .

.

1-1

L

B-2

Locations Certifications . . . . .

M

 

4-1

Maintenance . . . . . . . . . . . . .

.

Manual Overview . . . . . . . . . .

.

1-2

Manual Supplement . . . . . . .

. . C-1

Mechanical considerations . . . .

1-3

Mounting . . . . . . . . . . . . . . . .

.

2-3

Special . . . . . . . . . . . . . .

.

2-4

Mounting Considerations

. . 2-4

Existing threaded sensor

Mounting to a DIN rail . . .

2-4

O

 

3-1

Operation . . . . . . . . . . . . . . .

.

Ordering

Information . . . . . . . . . . . A-6

Ordering Information

Accessories . . . . . . . . . . . . A-7

Configuration Interface . . . A-7

Table . . . . . . . . . . . . . . . . A-6

P

Power Supply . . . . . . . . . .3-1, A-1 Grounding . . . . . . . . . . . . .3-2 Surges . . . . . . . . . . . . . . . .3-1 Transients . . . . . . . . . . . . .3-1

Process variable

Viewing . . . . . . . . . . . . . . .3-5

S

Sensor Connections . . . . . . . . .2-13

Diagram . . . . . . . . . . . . . .2-15 RTD or Ohm . . . . . . . . . . .2-13

Thermocouple or Millivolt .2-15 Sensor Terminals . . . . . . . . . .2-16 Software

Installation . . . . . . . . . . . .2-10 Requirements . . . . . . . . . . .2-9

Screen conventions . . . . . .2-11 Troubleshooting . . . . . . . . .4-1

Specifications

Configuration interface . . . A-5

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

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

Physical . . . . . . . . . . . A-5 Stability . . . . . . . . . . . . . . . . . A-2

Surges

see Electrical considerations

T

Tagging . . . . . . . . . . . . . . . . . . A-8

Temperature

Rise vs. extension length . . .2-3

Transients

see Electrical considerations

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

Software . . . . . . . . . . . . . . .4-1

U

Using This Manual . . . . . . . . . .1-1

W

Weight . . . . . . . . . . . . . . . . . . A-5

I-1

Rosemount Model 3244MV MultiVariable Temperature Transmitter with Profibus-PA

Wiring

diagrams . . . . . . . . . . . . . 2-13

Sensors diagram . . . . . . . 2-15 terminal . . . . . . . . . . . . . . 2-16

I-2

Rosemount Inc.

Fisher-Rosemount Limited

Fisher-Rosemount

 

8200 Market Boulevard

Heath Place

Singapore Pte Ltd.

Product documentation available at...

Chanhassen, MN 55317

Bognor Regis

1 Pandan Crescent

www.rosemount.com

USA

West Sussex PO22 9SH

Singapore 128461

Tel 1-800-999-9307

England

Tel (65) 777-8211

 

Fax (952) 949-7001

Tel 44 (1243) 863 121

Fax 65 777-0947

 

 

Fax 44 (1243) 867 5541

AP.RMT-Specialist@frco.com

 

© Rosemount Inc., 2000

R

INT

 

D

P

E

IN

 

 

 

.

U.S.A

¢00809-0100-4737f¤

00809-0100-4737 Rev EA 10/00