Emerson Rosemount 3144P Manuel utilisateur

Quick Start Guide

00825-0100-4834, Rev FA

March 2020

Rosemount™ 3144P Temperature

Transmitters

with FOUNDATION™ Fieldbus Protocol

Contents

About this guide...........................................................................................................................3

Mount the transmitter..................................................................................................................5

Wire and apply power...................................................................................................................7

Verify tagging............................................................................................................................ 12

Product certifications................................................................................................................. 16

Quick Start Guide March 2020

2 Rosemount 3144P

1 About this guide

This guide provides basic guidelines for installing the Rosemount 3144P

Transmitter. It does not provide instructions for detailed configuration,

diagnostics, maintenance, service, troubleshooting, Explosion-proof,

Flameproof, or intrinsically safe (I.S.) installations. Refer to the Rosemount

3144P Transmitter Reference Manual for more instructions. The manual and

this guide are also available electronically on Emerson.com/Rosemount.

WARNING

Explosions

Explosions could result in death or serious injury.

Installation of device in an explosive environment must be in accordance

with appropriate local, national, and international standards, codes, and

practices.

Review the Product Certifications section of this document for any

restrictions associated with a safe installation.

In an Explosion-proof/Flameproof installation, do not remove the

transmitter covers when power is applied to the unit.

Process leaks

Process leaks may cause harm or result in death.

Install and tighten thermowells and sensors before applying pressure.

Do not remove the thermowell while in operation.

Conduit/cable entries

The conduit/cable entries in the transmitter housing use a ½–14 NPT

thread form.

When installing in a hazardous location, use only appropriately listed or

Ex certified plugs, glands, or adapters in cable/conduit entries.

Electrical shock

Electrical shock can result in death or serious injury.

Avoid contact with the leads and terminals. High voltage that may be

present on leads could cause electrical shock.

March 2020 Quick Start Guide

Quick Start Guide 3

WARNING

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.

Quick Start Guide March 2020

4 Rosemount 3144P

2 Mount the transmitter

Mount the transmitter at a high point in the conduit run to prevent moisture

from draining into the transmitter housing.

2.1 Typical North American installation

Figure 2-1: Typical Direct-Mounted Configuration

ABC

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.

March 2020 Quick Start Guide

Quick Start Guide 5

11. Attach and tighten both transmitter covers.

2.2 Typical European installation

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

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).

Quick Start Guide March 2020

6 Rosemount 3144P

3 Wire and apply power

3.1 Wire the transmitter

Table 3-1: Single Sensor

2-wire RTD and

ohms

3-wire RTD and

ohms(1)

4-wire RTD and

ohms

T/Cs and

millivolts

RTD with

compensation

loop(2)

(1) Emerson 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.

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

compensation loop.

Table 3-2: Dual Sensor

Emerson provides 4-wire sensors for all single-element RTDs. To use these RTDs in three-wire

configurations, leave the unneeded leads disconnected and insulated with electrical tape.

ΔT/

Hot Backup™/

dual sensor

with two

RTDs

ΔT/Hot Backup/

dual Sensor with

two

thermocouples

ΔT/Hot Backup/

dual sensor with

RTDs/

thermocouples

ΔT/Hot Backup/

dual sensor with

RTDs/

thermocouples

ΔT/Hot Backup/

dual sensor

with two RTDs

with

compensation

loop

March 2020 Quick Start Guide

Quick Start Guide 7

3.2 Power the transmitter

A. Sensor terminals (1–5)

B. Power terminals

C. Ground

Procedure

1. Remove the terminal block cover.

2. Connect power to the power terminal.

The terminals are polarity insensitive.

3. Tighten the terminal screws.

4. Reattach and tighten the cover.

WARNING

Enclosure

Enclosure covers must be fully engaged to meet explosion-proof

requirements.

5. Apply power.

Quick Start Guide March 2020

8 Rosemount 3144P

3.3 Ground the transmitter

3.3.1 Ungrounded thermocouple, mV, and RTD/ohm inputs

Each process installation has different requirements for grounding. Use the

grounding options recommended by the facility for the specific sensor type

or begin with grounding option 1 (the most common).

Ground the transmitter: option 1

Emerson recommends this option for ungrounded transmitter housing.

Procedure

1. Connect 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 shield at the power supply end only.

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

surrounding grounded fixtures.

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

A. Sensor wire

B. Transmitter

C. Shield ground point

Ground the transmitter: option 2

Emerson recommends this method for grounded transmitter housing.

Procedure

1. Connect sensor wiring shield to the transmitter housing.

Do this only if the housing is grounded.

2. Ensure that the sensor is electrically isolated from surrounding

fixtures that may be grounded.

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

March 2020 Quick Start Guide

Quick Start Guide 9

A. Sensor wire

B. Transmitter

C. Shield ground point

Ground the transmitter: option 3

Procedure

1. Ground sensor wiring shield at the sensor, if possible.

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

isolated from the transmitter housing and other grounded fixtures.

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

A. Sensor wire

B. Transmitter

C. Shield ground point

3.3.2 Ground thermocouple inputs

Procedure

1. Ground sensor wiring shield at the sensor.

Quick Start Guide March 2020

10 Rosemount 3144P

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