Emerson Rosemount 3144P Manuale utente
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
ED
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
B
C
D
E
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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