Fisher Weather Radio 244Eh Users Manual Rosemount 244ER PC Programmable Temperature Transmitters

244ER to the manual 8c90374b-6a35-4450-97e8-5840f74c7a29

: Fisher Fisher-Fisher-Weather-Radio-244Eh-Users-Manual-427752 fisher-fisher-weather-radio-244eh-users-manual-427752 fisher pdf

Open the PDF directly: View PDF .
Page Count: 64

Models 244EH and 244ER

PC-Programmable Temperature

Transmitters

00809-0100-4737

English

Rev. EA

Product Discontinued

¢00809-0100-4737f¤

00809-0100-4737 Rev EA 10/00

Product

Manual

Models 244EH and 244ER

PC-Programmable

Temperature Transmitters

Fisher-Rosemount

satisfies all obligations

coming from legislation

to harmonise product

requirements in the

European Union.

© Rosemount Inc., 2000

Rosmeount Inc.

8200 Market Boulevard

Chanhassen, MN 55317

USA

Tel 1-800-999-9307

Fax (952) 949-7001

Fisher-Rosemount Limited

Heath Place

Bognor Regis

West Sussex PO22 9SH

England

Tel 44 (1243) 863 121

Fax 44 (1243) 867 5541

Fisher-Rosemount

Singapore Pte Ltd.

1 Pandan Crescent

Singapore 128461

Tel (65) 777-8211

Fax 65 777-0947

AP.RMT-Specialist@frco.com

P

R

I

N

T

E

D

IN

U.

S.

A.

Product documentation available at...

www.rosemount.com

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

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

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

Noryl and Lexan are registered trademarks of General Electric.

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

MINIGRABBER is a trademark of Pamona Electronics.

WAGO is a registered trademark of Kontakttechnik GmbH.

Cover photo: 644-244C901

NOTICE

Read this manual before working with the product. For personal and system safety, and

for optimum product performance, make sure you thoroughly understand the contents

before installing, using, or maintaining this product.

Within the United States, Rosemount Inc. has two toll-free assistance numbers:

Customer Central

Technical support, quoting, and order-related questions.

1-800-999-9307 (7:00 am to 7:00 pm CST)

North American Response Center

Equipment service needs.

1-800-654-7768 (24 hours—includes Canada)

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

The products described in this document are NOT designed for nuclear-qualified

applications. Using non-nuclear qualified products in applications that require

nuclear-qualified hardware or products may cause inaccurate readings.

For information on Rosemount nuclear-qualified products, contact your local Rosemount

Sales Representative.

1

Table of Contents

SECTION 1

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

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

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

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

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

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

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

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

SECTION 2

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

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

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

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

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

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

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

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

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

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

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

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

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

SECTION 3

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

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

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

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

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

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

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

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

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

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

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

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

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

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

SECTION 4

Maintenance and

Troubleshooting

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

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

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

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

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

2

APPENDIX A

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

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

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

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

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

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

Ordering Flameproof and Explosion-proof Approvals

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

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

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

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

APPENDIX B

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

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

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

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

APPENDIX C

Models 644 and 244E

Temperature Transmitters

Manual Supplement

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

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

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

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

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

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

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

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

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

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

Section

1-1

1Introduction

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

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

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

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

SAFETY MESSAGES Procedures and instructions in this manual may require special

precautions to ensure the safety of the personnel performing the

operations. Information that raises potential safety issues is indicated

by a warning symbol ( ). Refer to the safety messages listed at the

beginning of each section before performing an operation preceded by

this symbol.

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

and Model 244ER transmitters include:

• Configuration using the Model 244EC Configuration Interface

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

and 244ER Configuration Software

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

2-wire outputs that are less susceptible to electrical noise

• The capability to linearize RTD and thermocouple inputs

with temperature

• Electrical input-output isolation

• Electronics that are completely encapsulated in epoxy and

enclosed in a metal housing, making the transmitter extremely

durable and ensuring long-term reliability

• A compact size and two housing options allowing mounting

flexibility for the control room or the field

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

sensors, and thermowells to provide complete assemblies for process

temperature measurements. Refer to Volume 1 of the Rosemount

Temperature Sensors and Assemblies Product Data Sheet (document

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

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

sensors and accessories.

Failure to follow these installation guidelines could result in death or

serious injury.

• Make sure only qualified personnel perform the installation.

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

1-2

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

maintenance of Rosemount® Model 244EH and 244ER PC

Programmable Temperature Transmitters and the Model 244EC

Configuration Interface.

Section 2: Installation

• Tools for installation

• Mounting

• Installation

• Field wiring

Section 3: Operation

• Power Supply

• Configuration

Section 4: Maintenance and Troubleshooting

• Software Troubleshooting

Appendix A: Reference Data

• Specifications

• Dimensional drawings

• Ordering information

Appendix B: Approvals

• Locations certifications

• Installation drawings

Appendix C: Models 644 and 244E Temperature Transmitters Manual

Supplement

• Comparison between new and old Models 644 and 244E

• Specifications

1-3

CONSIDERATIONS

General Electrical temperature sensors such as RTDs and thermocouples

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

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

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

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

to the control room via two wires.

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

the need for access to the transmitter.

Wiring Connections

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

connection head. Be sure to provide adequate clearance for

cover removal.

Electrical Proper electrical installation is necessary to prevent errors due to

sensor lead resistances and electrical noise. Shielded cable should be

used in electrically noisy environments.

Environmental The transmitter electronics module is permanently sealed within the

housing, resisting moisture and corrosive damage. Verify that the

operating atmosphere of the transmitter is consistent with the

appropriate hazardous locations certifications.

Section

2-1

2Installation

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

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

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

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

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

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

SAFETY MESSAGES Instructions and procedures in this section may require special

precautions to ensure the safety of the personnel performing the

operations. Information that raises potential safety issues is indicated

by a warning symbol ( ). Please refer to the following safety messages

before performing an operation preceded by this symbol.

Warnings

Explosions could result in death or serious injury.

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

is live.

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

appropriate hazardous locations certification.

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

Process leaks could result in death or serious injury.

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

leakage may result.

• Do not remove the thermowell while in operation. Doing so may cause process

fluid leaks.

Electrical shock could cause death or serious injury.

• If the sensor is installed in a high-voltage environment and a fault condition or

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

and terminals.

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

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

2-2

Figure 2-1. Transmitter

Installation Flowchart

TOOLS NEEDED FOR

INSTALLATION The tools needed for installation are as follows:

Begin Here Transmitter

Configured?

Configure

Transmitter

Set Sensor

Type

Set Number

of Wires

Set 50/60 Hz

Filter

Set Units

Set Range

Values

Set

Damping

Field

Install

Set Failure

Mode Switch

Mount

Transmitter

Wire

Transmitter

Power

Transmitter

Check for

Leaks

Done

244-244_02A

Models 244EH and 244ER: • Transmitter

• Mounting apparatus

Model 244EC Configuration Interface: • Transmitter

• 9-pin connector cable

• MINIGRABBER™clips

Model 244EH and 244ER Configuration Software: •PC

• Windows-based software

2-3

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.

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.

Figure 2-2. Model 244EH Connection

Head Temperature Rise vs. Extension

Length

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.

3044-0123A

60

50

40

30

20

10

075 100 125 150 175 200 225

Temperature Rise Above Ambient (°C)

Extension Length (mm)

815°

C

Process

Temperature

540°C

Process

Temperature

250°C

Process

Temperature

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

2-4

Special Mounting

Considerations 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.

Figure 2-3. Assembling Rail Clip

Hardware to a Model 244EH

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.

Figure 2-4. Assembling Model

244EHforUseinanExistingL1

Connection Head

G-Rail (asymmetric) Top Hat Rail (symmetric)

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

Transmitter

Mounting

Hardware

Rail Clip

Transmitter

Mounting

Hardware

Rail Clip

644-5302B01A, D02A

644-5321A01A

Kit includes replacement

bracket and screws.

Existing Threaded Sensor

Connection Head

(Former option code L1)

2-5

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

644-0000B04A

Model 244EH

Transmitter

Integral Mount Sensor

with Flying Leads Threaded Extension

Threaded

Thermowell

C

onnection

Head

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

2-6

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

644-0000A04A

Standard

Extension

Threaded Thermowell

Universal Head

Threaded Style Sensor

2-7

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 Integral Mount Sensor

with Terminal Block

Connection Head

Standard Extension

Threaded Thermowell

Rail Mount Transmitter

Sensor Leads

with Cable Gland

644-0000C04A

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

2-8

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

and Assembly Rail Mount

Transmitter

Threaded

Style Sensor Threaded

Thermowell

Standard

Extension

Threaded Sensor

Connection Head

644-0000A04B

2-9

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

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.

Transmitter

No. 1

Transmitter

No. 2

RLead

RLead

RLead

Readout or

Controller

No.1

Readoutor

Controller

No. 2 To Additional Transmitters

dc

Power

Supply

Backup Battery

3044-0131A

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

2-10

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.

2-11

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.

Model 244EC Configuration

Interface 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 MINIGRABBER™ clips.

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.

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

2-12

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

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.

Model 244EC

Configuration

Interface

Model 244EH or 244ER

Transmitter

Windows-based PC Running

the Configuration Software

244-011AB

2-13

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

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.

Model 244EH

Model 244ER

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

Power

Supply

244-0000A02C

Power

Supply

644-0000A02D

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

2-14

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.

Table 2-1. Examples of Approximate

Basic Error

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:

Lead wire imbalance seen by the transmitter = 0.5 Ω

Sensor Input Approximate Basic Error

4-wire RTD None (independent of lead wire resistance)

3-wire RTD ± 1.0 Ωin reading per ohm of unbalanced lead wire

resistance (Unbalanced lead wire resistance =

maximum imbalance between any two leads.)

2-wire RTD 1.0 Ωin reading per ohm of lead wire resistance

Basic Error Imbalance of Lead Wires

αPt Ro

×()

------------------------------------------------------------------=

Error due to amb. temp. variation αCu

()∆Tamb

()×Imbalance of Lead Wires()×

αPt

()Ro

()×

-------------------------------------------------------------------------------------------------------------------------=

Basic error 0.5 Ω

0.00385 Ω/Ω°C()100 Ω()×

--------------------------------------------------------------------------------- 1.3 °C==

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

0.0039 Ω/Ω°C()25 °C()×0.5 Ω()×

0.00385 Ω/Ω°C()100 Ω()×

------------------------------------------------------------------------------------------------------- 0.13 °C±==

2-15

•Pt100 2-wire RTD:

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

0.025 Ω/m = 7.5 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

Basic Error Lead Wire Resistance

αPt Ro

×()

----------------------------------------------------------=

Error due to amb. temp. variation αCu

()∆Tamb

()×Lead Wire Resistance()×

αPt

()Ro

()×

-----------------------------------------------------------------------------------------------------------------=

Basic error 7.5 Ω

0.00385 Ω/Ω°C()100 Ω()×

--------------------------------------------------------------------------------- 19.5 °C==

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

0.0039 Ω/Ω°C()25 °C()×7.5 Ω()×

0.00385 Ω/Ω°C()100 Ω()×

------------------------------------------------------------------------------------------------------- 1.9 °C±==

Model 244E Sensor Connections

* 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.

12341234 12 34 12

3

41234

644-0000B01A

1

2-wire

RTD

and V

3-wire

RTD

and V

4-wire

RTD

and V

T/C

and mV

RTD with

Comp.

Loop

***

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

2-16

Figure 2-13. Transmitter Power,

Sensor, and Configuration Terminals

FAILURE MODE 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.

Changing Switch Positions 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.

Model 244EH Model 244ER

12 34

Failure Mode

Switch

Power Terminal

Sensor

Terminals

Configuration

Terminals

244-1260B02D, 1105E01B

Failure Mode Switch

Sensor Terminal

Power/Configuration

Terminals

Section

3-1

3Operation

SafetyMessages ................................page3-1

Power Supply . . . . . . . . . . . . . ......................page3-1

Configuration ...................................page3-2

IntermittentSensorAlgorithm .....................page3-5

SAFETY MESSAGES Instructions and procedures in this section may require special

precautions to ensure the safety of the personnel performing the

operations. Information that raises potential safety issues is indicated

by a warning symbol ( ). Please refer to the following safety messages

before performing an operation preceded by this symbol.

Warning

POWER SUPPLY 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.

Surges/Transients 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.

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.

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

3-2

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.

3-3

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

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.

244E-244DF01

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

3-4

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.

Configuring Several

Transmitters Identically 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.

3-5

Viewing the Process

Variable 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.

Figure 3-2. Viewing the Process

Variable with the 244EC

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.

244E-244EC01

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

3-6

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.

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.

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.

0 500 1000 1500 2000 2500 3000 3500 4000

Step Changes Greater than Threshold Value

Input

Time (in Microseconds)

Output without Algorithm

Output with Algorithm (Default)

0 500 1000 1500 2000 25003000 3500 4000

Changes Greater than Threshold Value

Input

Time (in 500 ms increments)

Output without Algorithm

Output with

Algorithm (Default)

3-7

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.

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).

Intermittent Sensor

Algorithm and Damping If the transmitter has both intermittent sensor detect and damping

enabled, the output reading is calculated by the following formula:

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.

0 500 1000 1500 2000 2500 3000 3500 4000

Step Changes Greater than Threshold Value

Input

Time (in 500 ms increments)

Output without Algorithm

Output with Algorithm (Default)

Total of All Step Changes

0 500 1000 1500 2000 2500 3000 3500 4000

Open Sensor

Input

Time (in 500 ms increments)

Output without Algorithm

Output with Algorithm (Default)

False Output Alarm

Damped Value P N–()

2TU–

2TU+

------------------





×N+=

P = previous damped value

N = new sensor value

T = damping time constant

U = update rate

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

3-8

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.

Figure 3-3. Damping Function when

Input Change is Greater Than the

Threshold Value

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.

644-644_02A

3-9

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.

Implementation 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.

Figure 3-4. Open Sensor Response

(Three Cases)

Unless rapid response rate is necessary, the suggested setting of the

Intermittent Sensor Detect mechanism is ON.

0

0

5

10

15

20

25

0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6

Transmitter Output (mA)

Time (seconds)

A false temperature output in

either direction up to the

threshold value (100 % of output

range if Intermittent Sensor Detect

is OFF) is possible when an open

sensor condition is detected.

Normal open sensor responses

High Alarm

644-644_03

Section

4-1

4Maintenance and

Troubleshooting

SafetyInformation ...............................page4-1

Troubleshooting .................................page4-1

SAFETY INFORMATION 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

TROUBLESHOOTING 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.

Model 244EH software

version 5.5.1 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.

• 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.

SCRNDUMP-244E-STATUS

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

4-2

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

Communications Device Driver

The Models 244EH and 244ER Configuration Software is

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

UNSUCCESSFUL

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

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

indication received

The battery for the configuration interface is running low

on voltage. Replace the battery.

Appendix

A-1

Appendix

AReference Data

TransmitterSpecification..........................pageA-1

OrderingInformation .............................pageA-6

DimensionalDrawings............................pageA-9

TRANSMITTER

SPECIFICATION

Functional 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

Ambient Temperature Limits

Operating Storage

–40 to 85 °C (–40 to 185 °F) –50 to 120 °C (–58 to 248 °F)

1322

1000

750

250

010

12.0 20 30 40 42.4

Supply Voltage (V dc)

Maximum Load = 43.5 3(Supply Voltage – 12.0)

Operating

Region

4–20 mA dc

Load (Ohms)

500

244-24401A

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

A-2

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:

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

Performance 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:

CE Electromagnetic Compatibility Compliance Testing

The Models 244EH and 244ER meet all requirements listed under IEC

61326: Amendment 1, 1998.

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

Frequency Vibration

10 to 60 Hz 0.21 displacement

60 to 2000 Hz 3 g peak acceleration

A-3

Accuracy

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.

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

Sensor

Options Sensor

Reference Input

Ranges Recommended

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 –70to300 –94 to 572 10 18 0.01% of span or 0.2 °C

Cu 10 Edison Copper Winding No. 1 –50to250 –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

W5Re/W26Re

ASTME 988-96 0 to 2000 32 to 3632 25 40 0.1% of span or 1.0 °C

Millivolt Input –10 to 100 mV 3mV 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.

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

A-4

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.

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:

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

Sensor Options(1) Fixed Value % of reading %ofSpan

(if reading > 0) (if reading is < 0)

2-, 3-, 4-wire RTDs

PT 100 (α= 0.00385) 0.003 °C — — +0.001% of span

Pt 100 (α= 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 ≥ 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 ≥ 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 Ω— — 0.001% of span

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

0.6520.520.522

++ 0.97°C=

A-5

Physical Electrical Connections

Materials of Construction

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

Enclosure Ratings

Option codes J5 and J6 are NEMA 4X, IP66, and IP68.

Option code J6 is CSA Enclosure Type 4X

Model 244EC Configuration

Interface Power Supply

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

Power and Sensor Terminals

Model 244EH Compression screws permanently

fixed to terminal block

Clips permanently fixed to

terminal block

Model 244ER: Compression screw permanently

fixed to front panel

Clips permanently fixed to

front panel

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

Construction Material for the Electronics Housing and Terminal Block

Model 644H

Noryl

®glass reinforced

Model 644R:

Lexan

®polycarbonate

Code Options Add(1)

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

Model 244EH Head Mount 78 (2.75)

J5, J6 Universal Head 520 (18.43)

Model 644R Rail Mount 173 (6.10)

9 V dc battery or wall adapter

Output voltage rating: 8to12Vdc

Output current rating: 100 mA minimum

Connector: 3.5 mm diameter male plug, positive tip, negative sleeve

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

A-6

ORDERING INFORMATION

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

•= Available

— = Not available

Model Product Description Head

Mount Rail

Mount

244EH Head Mount Temperature Transmitter •—

244ER Rail Mount Temperature Transmitter — •

Code Hazardous Area Certifications Enclosure Purchase

Required? Head

Mount Rail

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-7

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

MINIGRABBER

™Configuration 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

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

A-8

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:

Custom Configuration

The transmitter can be ordered with custom configuration. Use

Table A-7 to determine the requirements when specifying the custom

configuration.

Tagging

Standard Configuration(1)

(1) All standard configuration settings may be changed in the field with the Model

244EC Configuration Interface.

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

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

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-9

DIMENSIONAL DRAWINGS

Transmitter

Enclosure and Model 244EC Configuration Interface

Model 244ER Model 244EH

Shown with Standard Compression Screw Terminals

Shown with WAGO®Spring Clamp Terminals

Dimensions are in millimeters (inches)

36

(1.4)

104

(4.1)

82

(3.2)

Sensor Terminals

Power Terminals

644-1105E01A. 1101A01A

644-1360B02A

33 (1.30)

WAGO

®Spring

Clamp Sensor

Terminals

24 (1.0)

Power Terminals

Communication

Terminals Failure Mode Switch

33 (1.3)

60 (2.4)

Standard Sensor

Terminals

Communication

Terminals

644-1360A02A

Failure Mode

Switch

34 (1.33)

60 (2.4)

33 (1.3)

Power

Terminals

24 (1.0)

Threaded-Sensor Universal

Head (option code J5 or J6)(1) Integral DIN Style Sensor

Connection Head(2) Model 244EC

Configuration Interface

Dimensions are in millimeters (inches)

(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.

95 (3.74)

96 (3.76)

112 (4.41)

SST “U” Bolt

Mounting,

2-inch Pipe

Label

75 (2.93)

1

04 (4.09)

100 (3.93)

7

8

(

3.06

)

0.61 m (2 ft)

Configuration Leads

38 (1.5)

1.83 m (6 ft) Ribbon Cable

84 (3.3)

114 (4.5)

644-4420A02A, 4410AO1A, 3300A01A

Appendix

B-1

Appendix

BApprovals

SafetyMessages ................................pageB-1

Hazardous Locations Installations . . . . . . . . . .........pageB-1

LocationsCertifications ..........................pageB-2

InstallationDrawings .............................pageB-4

SAFETY MESSAGES Instructions and procedures in this section may require special

precautions to ensure the safety of the personnel performing the

operations. Information that raises potential safety issues is indicated

by a warning symbol ( ). Please refer to the following safety messages

before performing an operation preceded by this symbol.

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).

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).

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

B-2

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-3

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.

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

B-4

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

INSTALLATION

DRAWINGS 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-5

Figure B-1. Canadian Standards

Association (CSA) Intrinsic Safety

Installation Drawing 00644-1064,

Rev. AB

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

B-6

Figure B-2. Canadian Standards

Association (CSA) Explosion-Proof

Installation Drawing 00644-1059,

Rev. AA

644-1059A01A

B-7

Figure B-3. Factory Mutual (FM)

Intrinsic Safety Installation Drawing

00644-0009, Rev. AA

644-0009A01A

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

B-8

Figure B-4. Factory Mutual (FM)

Explosion-Proof Installation Drawing

00644-1049, Rev. AB

644-1049A01A

Appendix

C-1

Appendix

CModels 644 and 244E

Temperature Transmitters

Manual Supplement

OldTransmitter..................................pageC-2

NewTransmitter .................................pageC-3

Specifications ...................................pageC-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

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

C-2

OLD TRANSMITTER

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

* 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.

644-0000B01B

12341234 12 34 12

3

41234

2-wire

RTD and

V

3-wire

RTD

and V

4-wire

RTD

and V

T/C and

mV

RTD with

Comp.

Loop

1

***

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

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.

UsewithanExistingThreadedSensorConnectionHead

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

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.

644-5301B01B,D01B

Kit includes replacement

bracket and screw

644-644-5051A01A

C-3

NEW TRANSMITTER

NEW TRANSMITTER

Transmitter Design

Sensor Wiring Diagrams

Special Mounting

Considerations

HART Communicator

(Model 644H only)

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.

Models 644H and 244EH Models 644R and 244ER

Captive Mounting Screws and Springs

Meter Connector

(Model 644H only)

Hole in Middle

of Transmitter

644, 244-1360A02B

Models 644 and 244E

* 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.

1234

234 12 34 12

3

41234

2-wire

RTD

and V

3-wire

RTD

and V

4-wire

RTD

and V

T/C and

mV

1

***

RTD with

Comp.

Loop

644-0000B01C

UsewithanExistingDINPlateStyleSensor

1. Secure the bottom of the mounting screw sleeve

with pliers. Remove the mounting screws and

springs.

2. Once the springs are removed, use the new

transmitter mounting screws to assembly

the transmitter to the DIN plate and connection

head. (Optional snap rings (part number

00644-4432-0001) are available to ease installation

to the existing DIN plate style sensor.)

UsewithanExistingThreadedSensorConnectionHead

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

threaded sensor connection head (former option code L1),

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

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

bracket and all associated hardware necessary to facilitate

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

existing head.

Mounting

Springs

and

Screws

Mounting

Screw

Sleeves

SENSORS-0000A02B

Model 644H or

Model 244EH

Existing

Threaded Sensor

Connection Head

Kit includes

replacement bracket

and screw

644-644-5321A01A,

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

C-4

SPECIFICATIONS

Old New

BASEFFA(1) Intrinsically Safe Installation Entity Parameters:

Power Loop Umax:in 30 V dc 30Vdc

Imax:in 200 mA 200 mA

Group II C

Zones 0 and 1 Wmax:in 1.0 W 1.0 W 0.67 W

•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

Li0µH 0 µH

Sensor Uo24.2 V dc 13.6 V dc

Io33 mA 80 mA

Po0.2 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 52348

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

the communication pins are protected to at least IP20. Special Conditions for Safe Use: The apparatus must be installed in an enclosure which

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

a surface resistance of less than 1 G

Ω

, light alloy or zirconium enclosures must be

protected from impact and friction when installed.

CSA(2) Intrinsically Safe Installation Connection Parameters:

Class I

Div. 1

Groups A, B, C,

and D

• 30 V or less, 330 ohms or more T6 (– 50 ≤Ta≤40 °C) • 30 V or less, 340 ohms or more

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

• 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

Div. 1

Groups C and D

• 30 V or less, 150 ohms or more T4 (– 50 ≤Ta≤80 °C) • 30 V or less, 230 ohms or more

• 28 V or less, 200 ohms or more

• 25 V or less, 160 ohms or more

Factory Mutual(3) Intrinsically Safe Installation Entity Parameters:

Power Loop Vi30 V dc 30Vdc

Ii250 mA 240 mA

Class I, II, and III

Div. 1

Groups A, B, C, D,

E, F, and G

Pi1.0 W 1.0 W 0.67 W

•T5(–50≤Ta≤60 °C) • • T5 (– 50 ≤Ta≤40 °C) • T6 (– 50 ≤Ta≤40 °C)

• • T4 (– 50 ≤Ta≤80 °C) • T5 (– 50 ≤Ta≤50 °C)

Ci0.008 µF 0.010 µF

Li0µH 0 µH

Sensor Vt10.7 V dc 13.6 V dc

It15.3 mA 22 mA

Po0.04 W 0.11 W

Ca2.23 µF 0.8 µF

La140 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)

I-1

Index

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

H

Humidity

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

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

I

Inputs

RTD or Ohm . . . . . . . . . . 2-13

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

Locations Certifications . . . . . . B-2

M

Maintenance . . . . . . . . . . . . . . 4-1

Manual Overview . . . . . . . . . . . 1-2

Manual Supplement . . . . . . . . . C-1

Mechanical considerations . . . . 1-3

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

Special . . . . . . . . . . . . . . . 2-4

Mounting Considerations

Existing threaded sensor . . 2-4

Mounting to a DIN rail . . . 2-4

O

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

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

Rosemount Model 3244MV MultiVariable Temperature Transmitter with Profibus-PA

I-2

Wiring

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

Sensors diagram . . . . . . . 2-15

terminal . . . . . . . . . . . . . . 2-16

© Rosemount Inc., 2000

Rosemount Inc.

8200 Market Boulevard

Chanhassen, MN 55317

USA

Tel 1-800-999-9307

Fax (952) 949-7001

Fisher-Rosemount Limited

Heath Place

Bognor Regis

West Sussex PO22 9SH

England

Tel 44 (1243) 863 121

Fax 44 (1243) 867 5541

Fisher-Rosemount

Singapore Pte Ltd.

1 Pandan Crescent

Singapore 128461

Tel (65) 777-8211

Fax 65 777-0947

AP.RMT-Specialist@frco.com

P

R

I

N

T

E

D

IN

U.

S.

A.

¢00809-0100-4737f¤

00809-0100-4737 Rev EA 10/00

Product documentation available at...

www.rosemount.com