Rosemount 3144P Reference Manual

Reference Manual

00809-0100-4021, Rev JC

December 2019

Rosemount™ 3144P Temperature Transmitter

with Rosemount X-well™ Technology

NOTICE

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

Within the United States, Emerson 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 Central Time) North American Response Center (Equipment service needs): 1-800-654-7768 (24 hours)

International: (952)-906-8888

CAUTION

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

Using non-nuclear qualified products in applications that require nuclear-qualified hardware or products may cause inaccurate readings.

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

WARNING

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

Ensure only qualified personnel perform installation or service.

Electrical shock could cause death or serious injury.

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

Explosions could result in death or serious injury.

Do not remove the connection head cover in explosive atmospheres when the circuit is live.

Before powering a FOUNDATION™ Fieldbus segment in an explosive atmosphere, ensure the instruments in the loop are installed in accordance with intrinsically safe or non-incendive field wiring practices.

Verify that the operating atmosphere of the transmitter is consistent with the appropriate hazardous locations certifications. All connection head covers must be fully engaged to meet explosion-proof requirements.

Process leaks could result in death or serious injury.

Do not remove the thermowell while in operation.

Install and tighten thermowells or sensors before applying pressure.

Physical access

Unauthorized personnel may potentially cause significant damage to and/or misconfiguration of end users’ equipment. This could be intentional or unintentional and needs to be protected against.

Physical security is an important part of any security program and fundamental to protecting your system. Restrict physical access by unauthorized personnel to protect end users’ assets. This is true for all systems used within the facility.

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Contents

Chapter 1	Introduction..................................................................................................................		5
	1.1	Using this manual.............................................................................................................................	5
	1.2	Rosemount 3144P revisions.............................................................................................................	6
	1.3	Confirm HART revision capability....................................................................................................	10

Chapter 2	Installation...................................................................................................................		11
	2.1	Installation considerations..............................................................................................................	11
	2.2	Commissioning..............................................................................................................................	13
	2.3	Mounting.......................................................................................................................................	16
	2.4	Installation.....................................................................................................................................	17
	2.5	Wiring............................................................................................................................................	23
	2.6	Foundation Fieldbus.......................................................................................................................	27
	2.7	Power supply..................................................................................................................................	28
	2.8	Grounding......................................................................................................................................	29
	2.9	Wire and apply power.....................................................................................................................	32

Chapter 3	HART Commissioning...................................................................................................			33
	3.1	Overview........................................................................................................................................		33
	3.2	Confirm HART revision capability....................................................................................................		33
	3.3	Safety messages.............................................................................................................................		34
	3.4	Field Communicator.......................................................................................................................		34
	3.5	Review configuration data..............................................................................................................		44
	3.6	Check output..................................................................................................................................		44
	3.7	Configuration.................................................................................................................................		44
	3.8	Rosemount X-well Technology configuration.................................................................................		99
	3.9	Device output configuration.........................................................................................................		102
	3.10		Device information.....................................................................................................................	104
	3.11		Measurement filtering................................................................................................................	106
	3.12		Diagnostics and service..............................................................................................................	108
	3.13		Multidrop communication..........................................................................................................	109
	3.14		Use with the HART Tri-Loop........................................................................................................	110
	3.15		Configure Thermocouple Degradation in guided setup..............................................................	113
	3.16		Configure Thermocouple Degradation in manual setup.............................................................	118
	3.17		Active Thermocouple Degradation Alerts...................................................................................	123
	3.18		Minimum/maximum tracking diagnostic....................................................................................	128
	3.19		Calibration..................................................................................................................................	136
	3.20		Trim the transmitter...................................................................................................................	137
	3.21		Output trim or scaled output trim..............................................................................................	147

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	3.22 Troubleshooting.........................................................................................................................		148
Chapter 4	FOUNDATION Fieldbus Configuration.........................................................................		157
	4.1	Overview......................................................................................................................................	157
	4.2	Safety messages...........................................................................................................................	157
	4.3	Device description........................................................................................................................	157
	4.4	Node address...............................................................................................................................	158
	4.5	Modes..........................................................................................................................................	158
	4.6	Link Active Scheduler (LAS)...........................................................................................................	159
	4.7	Capabilities...................................................................................................................................	159
	4.8	FOUNDATION Fieldbus function blocks............................................................................................	160
	4.9	Resource block.............................................................................................................................	162
	4.10 Analog Input (AI)........................................................................................................................		175
	4.11 Operation...................................................................................................................................		182
	4.12 Troubleshooting guides..............................................................................................................		188
Chapter 5	Operation and maintenance.......................................................................................		193
	5.1	Safety messages...........................................................................................................................	193
	5.2	Maintenance................................................................................................................................	193
	5.3	Return of materials.......................................................................................................................	195
Chapter 6	Safety Instrumented Systems (SIS) requirements.......................................................		197
	6.1	SIS certification.............................................................................................................................	197
	6.2	Safety certified identification........................................................................................................	197
	6.3	Installation...................................................................................................................................	197
	6.4	Configuration...............................................................................................................................	198
	6.5	Operation and maintenance.........................................................................................................	200
	6.6	Specifications...............................................................................................................................	201
	6.7	Spare parts...................................................................................................................................	202
Appendix A	Reference data...........................................................................................................		203
	A.1	Product Certifications...................................................................................................................	203
	A.2 Ordering Information, Specifications, and Drawings....................................................................		203

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1 Introduction

1.1Using this manual

The sections in this manual provide information on installing, operating, and maintaining the Rosemount™ 3144P Temperature Transmitter. The sections are organized as follows:

•Installation contains mechanical and electrical installation instructions.

•HART Commissioning contains techniques for properly commissioning the device.

•FOUNDATION Fieldbus Configuration provides instruction on commissioning and operating the Rosemount 3144P Transmitter. This chapter also includes information on software functions, configuration parameters, and online variables.

•Operation and maintenance contains operation and maintenance techniques.

•Safety Instrumented Systems (SIS) Requirements provides identification, installation, configuration, operation and maintenance, and inspection information for Safety Instrumented Systems.

•Reference Data supplies reference and specification data, as well as ordering information and contains intrinsic safety approval information, European ATEX directive information, and approval drawings.

1.1.1Transmitter

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

•Rosemount X-Well™ Technology provides a Complete Point Solution™ for accurately measuring process temperature in monitoring applications without the requirement of a thermowell or process penetration

•Superior accuracy and stability

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

•Comprehensive sensor and process diagnostics offering

•IEC 61508 safety certification

•Dual-compartment housing

•Large LCD display

•Selectable HART® Revision (5 and 7) or FOUNDATION Fieldbus protocols

Improve efficiency with Best-in-Class product specifications and capabilities:

•Reduce maintenance and improve performance with industry leading accuracy and stability.

•Improve measurement accuracy by 75 percent with Transmitter-Sensor Matching.

•Ensure process health with system alerts and easy-to-use Device Dashboards.

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•Easily check device status and values on local LCD display with large percent range graph.

•Achieve high reliability and installation ease with the industry's most rugged dual compartment design.

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

•Thermocouple Degradation Diagnostic monitors the health of a thermocouple loop, enabling preventative maintenance.

•Minimum and Maximum Temperature Tracking tracks and records temperature extremes of the process sensors and the ambient environment.

•Sensor Drift Alert detects sensor drift and alerts you.

•The Hot Backup™ feature provides temperature measurement redundancy.

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

•Rosemount Volume 1 Temperature Sensors and Accessories Product Data Sheet

•Rosemount DIN-Style Temperature Sensors and Thermowells (Metric) Product Data Sheet

1.2Rosemount 3144P revisions

HART protocol

The initial release of the Rosemount 3144P HART was device revision 3. Each additional revision contains incremental improvements. summarizes these changes.

Table 1-1: HART Revisions

Software	Identify device			Field device driver		Review
release date						instructions
	NAMUR	NAMUR	HART	HART	Device	Manual
	software	hardware	software	universal	revision	document
	revision	Revision	revision(1)	revision(2))		number
April 2017	1.2.1	1.0.0	3	7	7(3)	00809-0100-40
						21
				5	5(4)
April 2012	1.1.1	N/A	2	7	6(4)
				5	5(4)
Feb 2007	N/A	N/A	1	5	4
Dec 2003	N/A	N/A	N/A	5	3

(1)NAMUR software revision is located in the hardware tag of the device. You can read the HART software revision with a HART capable configuration tool.

(2)Device driver file names use device and DD devision (e.g. 10_07). HART protocol is designed to enable legacy driver revisions to continue to communicate with new HART devices. To access this functionality, download the new device driver. Emerson recommends downloading the new device driver to ensure new functionality.

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(3)Rosemount X-well sensor type.

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

FOUNDATION Fieldbus

The following table summarizes the Rosemount 3144P FOUNDATION™ Fieldbus revision history.

Table 1-2: FOUNDATION Fieldbus Revisions

Device	Software	Hardware	NAMUR	NAMUR	Description	Date
revision	revision	revision	software	hardware
			revision	revision
Rev 1	1.00.011	5	N/A	N/A	Initial release.	Mar.
						2004
Rev 1	1.00.024	5	N/A	N/A	Minor product	Sep.
					maintenance, software.	2004
Rev 1	1.00.024	6	N/A	N/A	Minor product	Dec.
					maintenance,	2004
					hardware.
Rev 1	1.01.004	6	N/A	N/A	Software update.	Oct.
						2005
Rev 1	1.01.010	7	N/A	N/A	Component	Feb.
					obsolescence hardware	2007
					change and software to
					support the hardware
					change.
Rev 2	2.02.003	7	N/A	N/A	FF Sensor and Process	Nov.
					Diagnostic Release	2008
					(D01): Thermocouple
					Degradation Diagnostic
					and Minimum and
					Maximum Temperature
					Tracking.

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	Table 1-2: FOUNDATION Fieldbus Revisions (continued)
	Device	Software	Hardware	NAMUR	NAMUR	Description		Date
	revision	revision	revision	software	hardware
				revision	revision
	Rev 3	3.10.23	7	1.3.1	1.0.0	Device Compliance to		June
						ITK 6.0.1. Addition of		2013
						NE107 device
						diagnostic information.
						Ease of use
						improvements
						including:
						•	Hot Backup
							functionality has
							been moved to the
							transducer block,
							allowing easier
							configuration from
							the DD.
						•	Device is shipped
							with the simulate
							switch ON, allowing
							device alerts
							simulation without
							cover removal.
						•	Device has unique
							block names using
							the last four digits
							(XXXX) of the
							output board serial
							number, e.g.
							AI_1400_XXXX
						•	All blocks are
							instantiated before
							shipping, including
							model option code
							dependent blocks.
							The product also
							has all parameters
							initialized so that its
							primary
							measurement is
							available with no
							user changes
							required.
						• All devices ship will
							AI block scheduled.
						•	Customer will be
							able to use old DD
							files when replacing
							a device with a
							newer rev device;
							this is possible for
							devices with device

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	Device	Software	Hardware	NAMUR	NAMUR	Description		Date
	revision	revision	revision	software	hardware
				revision	revision
						revision number 3
						and above.

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

• The product's default block tags are be less than or equal to 16 characters in length.

• Custom function blocks were replaced with enhanced function blocks.

• Default block tags include underscores, “_”, instead of white spaces.

• The CF file has a better description of the device, including meaningful defaults and example values.

• Device provides means to properly range graphs and charts in the device dashboards.

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1.3Confirm HART revision capability

Confirm the HART capability of the system devices prior to transmitter installation.

Prerequisites

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

Switch HART revision mode

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

Procedure

Select Manual Setup → Device Information → Identification → Message.

a)To change to HART Revision 5, enter HART5 in the Message field.

b)To change to HART Revision 7, enter HART7 in the Message field.

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2 Installation

2.1Installation considerations

2.1.1General

Electrical temperature sensors, such as resistance temperature detectors (RTDs) and thermocouples (T/Cs), produce low-level signals proportional to temperature. The Rosemount X-well™ 3144P Temperature Transmitter converts low-level signals to HART® or FOUNDATION™ Fieldbus and then transmits the signals to the control system via two power/signal wires.

2.1.2Electrical

Proper electrical installation is essential to prevent errors due to sensor lead resistance and electrical noise. For HART communications, the current loop must have between 250 and 1100 ohms resistance. Refer to for sensor and current loop connections. Foundation Fieldbus devices must have proper termination and power conditioning for reliable operation. Shielded cables must be used for Foundation Fieldbus and may only be grounded in one place.

2.1.3Temperature effects

Temperature effects

The transmitter will operate within specifications for ambient temperatures between –40 and 185 °F (–40 and 85 °C). Since heat from the process is transferred from the thermowell to the transmitter housing, if the expected process temperature is near or beyond specification limits, consider using additional thermowell lagging, an extension nipple, or a remote mounting configuration to isolate the transmitter from the process. Figure 2-1 details the relationship between housing temperature rise and extension length.

Figure 2-1: Transmitter Housing Temperature Rise versus Extension Length for a Test Installation

Housing Temperature

Rise Above

Ambient °C (°F)

22

60 (108)

50 (90)

40 (72)	815
	°C

	30 (54)						(1,50
					5					0
										°F)
					40
							°C				Oven		T
							(							emperat
	20 (36)							1,
									0
										00	°F)	Oven				ur		e
					250		°							Tempera
																	ture
	10 (18)						C	(4		82	°F)	Oven
	0													Temperature
					3			4			5			6	7				8	9

3.6Extension Length (in.)

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Example

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

T = S – A

T = 85 °C – 40 °C T = 45 °C

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

2.1.4Moist or corrosive environments

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

Note

Each transmitter is marked with a tag indicating the approvals. Install the transmitter according to all applicable installation codes, and approval and installation drawings (see Rosemount 3144P Product Data Sheet). Verify that the operating atmosphere of the transmitter is consistent with the hazardous locations certifications. Once a device labeled with multiple approval types is installed, it should not be reinstalled using any of the other labeled approval types. To ensure this, the approval label should be permanently marked to distinguish the approval type(s) used.

2.1.5Location and position

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

Terminal side of electronics housing

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

Circuit side of electronics housing

Mount the transmitter so the circuit side is accessible, providing adequate clearance for cover removal. Additional room is required for LCD display installation. The transmitter may be mounted directly to or remotely from the sensor. Using optional mounting

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brackets, the transmitter may be mounted to a flat surface or a 2.0-in. (50.8 mm) diameter pipe (see Mounting).

2.1.6Software compatibility

Replacement transmitters may contain revised software that is not fully compatible with the existing software. The latest device descriptors (DD) are available with new Field Communicators or they can be loaded into existing communicators at any Emerson Service Center or via the Easy Upgrade process. For more information on upgrading a Field Communicator, see HART Commissioning.

To download new device drivers, visit Emerson.com/Rosemount/Device-Install-Kits.

2.2Commissioning

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

Commissioning consists of testing the transmitter and verifying transmitter configuration data. Transmitters can be commissioned either before or after installation. Commissioning the transmitter on the bench before installation using a Field Communicator or AMS Device Manager ensures that all transmitter components are in working order.

For more information on using the Field Communicator with the transmitter, see HART Commissioning. For more information on using the Rosemount 3144 with FOUNDATION Fieldbus, see FOUNDATION Fieldbus Configuration.

Figure 2-2: Installation Flowchart

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2.2.1Setting the loop to manual

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

2.2.2Set switches

The security and simulate switches are located on the top center of the electronics module.

Note

The factory ships the simulate switch in the "ON" position.

HART

Set the switches without an LCD display

Procedure

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

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

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

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

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

Set the switches with an LCD display

Procedure

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

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

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

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

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

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

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

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

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FOUNDATION Fieldbus

Set switches without LCD display

Procedure

1.Set the loop to Out-of-Service (OOS) mode (if applicable) and disconnect the power.

2.Remove the electronics housing cover.

3.Set the switches to the desired position.

4.Reattach housing cover.

5.Apply power and set the loop to in-service mode.

Set switches with LCD display

Procedure

1.Set the loop to OOS (if applicable) and disconnect the power.

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

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

4.Set the switches to the desired position.

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

6.Replace the transmitter cover.

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

Figure 2-3: Transmitter Switch Locations

A

4.37-IN. (110,9 MM)

B

4.40-IN. (111,8 MM)

Write protect switch (HART and FOUNDATION Fieldbus)

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

Alarm switch (HART Protocol)

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

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

•21.0 ≤ I ≤ 23 for high alarm

•20.5 ≤ I ≤ 20.9 for high saturation

•3.70 ≤ I ≤ 3.90 for low saturation

•3.50 ≤ I ≤ 3.75 for low alarm

Note

A 0.1 mA separation between low saturation and low alarm is required.

Table 2-1: Values for Standard and NAMUR Operation

Standard operation (factory default)		NAMUR-compliant operation
Fail high	21.75 mA ≤ I	Fail high	21.0 mA ≤ I
High saturation	20.5 mA	High saturation	20.5 mA
Low saturation	3.9 mA	Low saturation	3.8 mA
Fail low	I ≤ 3.75 mA	Fail low	I ≤ 3.6 mA

Simulate switch (FOUNDATION Fieldbus)

Simulate switch is used to replace the channel value coming from the sensor transducer block. For testing purposes, it manually simulates the output of the analog input block to a desired value.

2.3Mounting

If possible, the transmitter should be mounted at a high point in the conduit run so moisture from the conduits will not drain into the housing. The terminal compartment could fill with water if the transmitter is mounted at a low point in the conduit run. In some instances, the installation of a poured conduit seal, such as the one pictured in Figure 2-5, is advisable. Remove the terminal compartment cover periodically and inspect the transmitter for moisture and corrosion.

Figure 2-4: Incorrect Conduit Installation

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Figure 2-5: Recommended Mounting with Drain Seal

A

B

C

D E F

A.Sealing compound

B.Union coupling with extension

C.Conduit for field wiring

D.Thermowell

E.Sensor hex

F.Poured conduit seal (where required)

If mounting the transmitter directly to the sensor assembly, use the process shown in Figure 2-6. If mounting the transmitter apart from the sensor assembly, use conduit between the sensor and transmitter. The transmitter accepts male conduit fittings with ½ –14 NPT, M20 × 1.5 (CM 20), PG 13.5 (PG 11), or JIS G ½ threads (M20 × 1.5 (CM 20),

PG 13.5 (PG 11), or JIS G ½ threads are provided by an adapter). Make sure only qualified personnel perform the installation.

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

2.4Installation

Installation is to be performed by qualified personnel. No special installation is required in addition to the standard installation practices outlined in this document. Always ensure a proper seal by installing the electronics housing cover(s) so that metal contacts metal.

The loop should be designed so the terminal voltage does not drop below 12 Vdc when the transmitter output is 24.5 mA.

Environmental limits are available in the Rosemount 3144P Temperature Transmitter Product Page.

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2.4.1Typical North American installation

Figure 2-6: Typical Direct-Mounted Configuration

A B C

D

E

A.Thermowell

B.Extension (nipple)

C.Union or coupling

D.Conduit for field wiring (dc power)

E.Extension fitting length

Procedure

1.Mount the thermowell to the process container wall.

2.Install and tighten thermowells.

3.Perform a leak check.

4.Attach any necessary unions, couplings, and extension fittings. Seal the fitting threads with an approved thread sealant, such as silicone or PTFE tape (if required).

5.Screw the sensor into the thermowell or directly into the process (depending on installation requirements).

6.Verify all sealing requirements.

7.Attach the transmitter to the thermowell/sensor assembly. Seal all threads with an approved thread sealant, such as silicone or PTFE tape (if required).

8.Install field wiring conduit into the open transmitter conduit entry (for remote mounting) and feed wires into the transmitter housing.

9.Pull the field wiring leads into the terminal side of the housing.

10.Attach the sensor leads to the transmitter sensor terminals. The wiring diagram is located inside the housing cover.

11.Attach and tighten both transmitter covers.

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2.4.2Typical European installation

Figure 2-7: Typical Remote-Mounted Configuration with Cable Glands

A

D

E

B

C

A.Cable gland

B.Shielded cable from sensor to transmitter

C.Shielded cable from transmitter to control room

D.2-in. (50 mm) pipe

E.B4 mounting bracket

Procedure

1.Mount the thermowell to the process container wall.

2.Install and tighten thermowells.

3.Perform a leak check.

4.Attach a connection head to the thermowell.

5.Insert sensor into the thermowell and wire the sensor to the connection head. The wiring diagram is located inside the connection head.

6.Mount the transmitter to a 2-in. (50 mm) pipe or a panel using one of the optional mounting brackets.

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

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

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

10.Connect the shielded cable leads to the connection head terminals (located inside the connection head) and to the sensor wiring terminals (located inside the transmitter housing).

2.4.3Rosemount X-well installation

Rosemount X-well™ Technology is for temperature monitoring applications and is not intended for control or safety applications. It is available in the Rosemount 3144P Temperature Transmitter in a factory assembled direct mount configuration with a Rosemount 0085 Pipe Clamp Sensor. It cannot be used in a remote mount configuration. Rosemount X-well Technology will only work as specified with factory supplied and assembled Rosemount 0085 Pipe Clamp silver tipped single element sensor with an 80 mm extension length. It will not work as specified if used with other sensors. Installation

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and use of incorrect sensor will result in inaccurate process temperature calculations. It is extremely important that the above requirements and installation steps below are followed to ensure that Rosemount X-well Technology works as specified.

In general, pipe clamp sensor installation best practices shall be followed. See Rosemount 0085 Pipe Clamp Sensor Quick Start Guide with Rosemount X-well Technology specific requirements noted:

1.Mount transmitter directly on pipe clamp sensor in order for Rosemount X-well Technology to properly function.

2.Install assembly away from dynamic external temperature sources such as a boiler or heat tracing.

3.Ensure for the pipe clamp sensor tip to make direct contact with the pipe surface for Rosemount X-well Technology. Moisture build-up between sensor and pipe surface, or sensor hang-up in assembly can cause inaccurate process temperature calculations. Refer to installation best practices in Rosemount 0085 Pipe Clamp Sensor Quick Start Guide to ensure proper sensor to pipe surface contact.

4.Insulation ½-in. thick minimum with a R-value of > 0.42 m² × K/W) is required over the sensor clamp assembly and sensor extension up to transmitter head to prevent heat loss. Apply a minimum of six inches of insulation on each side of the pipe clamp sensor. Care should be taken to minimize air gaps between insulation and pipe.

Note

DO NOT apply insulation over transmitter head as it will result in longer response times and may damage transmitter electronics.

5.Although it will come factory configured as such, ensure that pipe clamp RTD sensor is assembled in 4-wire configuration.

Figure 2-8: Rosemount 3144P Transmitter with Rosemount X-well Technology Installation

2.4.4Install Rosemount X-well in conjunction with a Rosemount 333 Tri-Loop (HART/4–20 mA only)

Use the dual-sensor option Rosemount 3144P Transmitter that is operating with two sensors in conjunction with a Rosemount 333 HART Tri-Loop™ HART-to-Analog Signal Converter to acquire an independent 4–20 mA analog output signal for each sensor input.

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The transmitter can be configured to output four of the six following digital process variables:

•Sensor 1

•Sensor 2

•Differential temperature

•Average temperature

•First good temperature

•Transmitter terminal temperature

•Surface temperature (Rosemount X-well only)

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

Refer to Figure 2-9 for basic installation information. Refer to the Rosemount 333 HART- to-Analog Reference Manual signal converter for complete installation information.

Figure 2-9: HART Tri-Loop Installation Flowchart (1)

(1) See Use with the HART Tri-Loop for configuration information.

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2.4.5LCD display

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

•LCD display assembly

•Extended cover with cover O-ring in place

•Captive screws (quantity 2)

•10-pin interconnection header

To install the LCD display:

Procedure

1.If the transmitter is installed in a loop, set the loop to manual (HART)/out-of-service (FOUNDATION Fieldbus) mode and disconnect the power.

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

3.Ensure that the transmitter write protect switch is set to the Off position. If transmitter security is On, the transmitter cannot be configured to recognize the LCD display. If security On is desired, configure the transmitter for the LCD display, and then install the meter.

4.Insert the interconnection header in the 10-pin socket on the face of the electronics module. Insert the pins into the electronics LCD display interface.

5.The meter can be rotated in 90-degree increments for easy viewing. Position one of the four 10-pin sockets on the back of the meter to accept the interconnection header.

6.Attach the LCD display assembly to the interconnection pins, then thread and tighten the LCD display screws into the holes on the electronics module.

7.Attach the extended cover; tighten at least one-third turn after the O-ring contacts the transmitter housing. Both transmitter covers must be fully engaged to meet explosion proof requirements.

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

Once the LCD display is installed, configure the transmitter to recognize the meter option. Refer to LCD display options or LCD display transducer block (index number 1200) (FOUNDATION Fieldbus).

Note

Observe the following LCD display temperature limits: Operating: –40 to 185 °F (–40 to 85 °C)

Storage: –76 to 185 °F (–60 to 85 °C)

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2.4.6Multichannel installation (HART/4–20 mA only)

Several transmitters can be connected to a single master power supply (see figure below). In this case, the system may be grounded only at the negative power supply terminal. In multichannel installations, where several transmitters depend on one power supply and the loss of all transmitters would cause operational problems, consider an uninterrupted power supply or a back-up battery. The diodes shown in Figure 2-10 prevent unwanted charging or discharging of the back-up battery.

Figure 2-10: Multichannel Installations

C F

A

D H

B

E

G

Between 250 and 1100 Ω If no load resistor

A.Transmitter 1

B.Transmitter 2

C.RLead

D.Readout or controller 1

E.Readout or controller 2

F.Battery backup

G.Power supply dc

2.5Wiring

2.5.1HART/4–20 mA

Field wiring

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

Note

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

To wire the transmitter for power:

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Figure 2-11: Transmitter Terminal Block Wiring Connection

			Wiring connection
Wiring connection			(with “T1” integral transient protection
			option)
		A			A

“-”
“+”	“+”
TEST	“-”
		B
	B

A.Sensor terminals (1–5)

B.Ground

Figure 2-12: Sensor Wiring Diagram for HART/4–20 mA

Single-sensor connections

Dual-sensor connections

(1)(2)

(1)Transmitter must be configured for a 3-wire RTD in order to recognize an RTD with a compensation loop.

(2)Emerson provides 4-wire sensors for all single-element RTDs. Use these RTDs in 2- or 3-wire configurations by leaving the unneeded leads disconnected and insulated with electrical tape.

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Procedure

1.Remove the transmitter covers.

Do not remove the transmitter covers in an explosive atmosphere when the circuit is live.

2.Connect the positive power lead to the terminal marked “+” and the negative power lead to the terminal marked “–” as shown in Figure 2-11.

Crimped lugs are recommended when wiring to screw terminals.

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

4.Replace the transmitter covers making sure both transmitter covers are fully engaged to meet explosion-proof requirements.

Power/current loop connections

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

1.Connect the current signal leads as shown in Figure 2-13.

2.Recheck the polarity and connections.

3.Turn the power ON.

For information about multichannel installations, refer to Multichannel installation (HART/4–20 mA only).

Note

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

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Figure 2-13: Connecting a Field Communicator to a Transmitter Loop (HART/4–20 mA)

A

B

C

OR*

A.Power/signal terminals

B.250 ≤ RL ≤ 1100

C.Power supply

Note

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

Note

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

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2.6Foundation Fieldbus

Figure 2-14: Transmitter Terminal Block

Wiring connection		Wiring connection
		(with “T1” integral transient protection option)
	A	A
B
		B
		C

C

A.Sensor terminals (1–5)

B.Power terminals

C.Ground

Figure 2-15: Sensor Wiring Diagram for FOUNDATION Fieldbus

Single-sensor connections

Dual-sensor connections

(1)(2)

(1)Transmitter must be configured for a 3-wire RTD in order to recognize an RTD with a compensation loop.

(2)Emerson provides 4-wire sensors for all single-element RTDs. Use these RTDs in 2- or 3-wire configurations by leaving the unneeded leads disconnected and insulated with electrical tape.

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RTD or ohm inputs

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

When using Rosemount X-well Technology, the Rosemount 3144P Temperature Transmitter is required to be assembled to a Rosemount 0085 Pipe Clamp RTD Sensor in a direct mount 4-wire configuration. It can be changed to 3- or 2-wired configuration, if required, in the field.

Thermocouple or millivolt inputs

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

Note

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

2.7Power supply

HART

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

The power supplied to the transmitter is determined by the total loop resistance and should not drop below the lift-off voltage. The lift-off voltage is the minimum supply voltage required for any given total loop resistance. See Figure 2-16 to determine the required supply voltage. If the power drops below the lift-off voltage while the transmitter is being configured, the transmitter may output incorrect information.

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

Note

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

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Figure 2-16: Load Limits

Maximum load = 40.8 × (Supply voltage–12.0)

FOUNDATION Fieldbus

Powered over FOUNDATION Fieldbus with standard Fieldbus power supplies, the transmitter operates between 9.0 and 32.0 Vdc, 11 mA maximum. Transmitter power terminals are rated to 42.4 Vdc.

The power terminals on the transmitter are polarity insensitive.

2.7.1Surges/transients

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

The integral transient protection terminal block (option code T1) protects against highvoltage transients. The integral transient protection terminal block is available as an ordered option, or as an accessory.

2.8Grounding

Sensor shielding

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

If the ends of the shield are left ungrounded, voltage is created between the shield and the transmitter housing and also between the shield and earth at the element end. The transmitter may not be able to compensate for this voltage, causing it to lose communication and/or go into alarm. Instead of the shield carrying the currents away from the transmitter, the currents will now flow through the sensor leads into the transmitter circuitry where it will interfere with the circuit operation.

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2.8.1Ungrounded thermocouple, mV, and RTD/ohm inputs

Option 1: Recommended for ungrounded transmitter housing

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

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

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

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

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

A.Sensor wires

B.Transmitter

C.4-20 mA loop

D.Shield ground point

E.DCS

Option 2: Recommended for grounded transmitter housing

1.Ground the transmitter housing then connect the sensor wiring shield to the transmitter housing (see Transmitter housing).

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

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

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