Emerson Rosemount 3051G User manual

Quick Start Guide
00825-0100-4057, Rev EB
July2023
Rosemount™ 3051G Pressure
Transmitter
with 4-20mA HART® Protocol (Revision
5 and 7)

NOTICE
Before installing the transmitter, confirm the correct device driver is loaded on the host
systems. See System readiness.
NOTICE
This Quick Start Guide provides basic guidelines for Rosemount 3051 transmitters. It does
not provide instructions for configuration, diagnostics, maintenance, service,
troubleshooting, explosion-proof, flameproof, or intrinsically safe (IS) installations. Refer to
the Rosemount 3051 Pressure Transmitter Manual for more information. This manual is
available electronically on Emerson.com.
WARNING
Explosions could result in death or serious injury.
Installation of this transmitter in an explosive environment must be in accordance with the
appropriate local, national, and international standards, codes, and practices. Review Product
certifications for any restrictions associated with a safe installation.
Before connecting a HART®-based communicator in an explosive atmosphere, make sure the
instruments in the loop are installed in accordance with intrinsically safe or non-incendive
field wiring practices.
In an explosion-proof/flameproof installation, do not remove the transmitter covers when
power is applied to the unit.
WARNING
Process leaks could result in death or serious injury.
To avoid process leaks, only use the O-ring designed to seal with the corresponding flange
adapter.
WARNING
Electrical shock could cause death or serious injury.
Avoid contact with the leads and terminals. High voltage that may be present on leads can
cause electrical shock.
WARNING
Conduit/cable entries
Unless otherwise marked, the conduit/cable entries in the housing enclosure use a ½–14 NPT
form. Only use plugs, adapters, glands, or conduit with a compatible thread form when
closing these entries.
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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 in protecting
your system. Restrict physical access by unauthorized personnel to protect end users’ assets.
This is true for all systems used within the facility.
Contents
System readiness......................................................................................................................... 5
Transmitter installation...............................................................................................................6
Safety instrumented systems installation...............................................................................19
Product certifications................................................................................................................ 20
Declaration of Conformity........................................................................................................ 32
China RoHS................................................................................................................................. 36
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1 System readiness
1.1 Confirm HART® revision capability
•If using HART based control or asset management systems,
please confirm the HART capability of those systems prior
to transmitter installation. Not all systems are capable of
communicating with HART Revision 7 protocol. You can configure
this transmitter for either HART Revision 5 or 7.
•For instructions on how to change the HART revision of your
transmitter, see Switch HART revision mode.
1.2 Confirm correct device driver
•Verify that the latest device driver (DD/DTM™) is loaded on your
systems to ensure proper communication.
•Download the latest device driver at Emerson.com or FieldComm
Group
1.2.1 Device revisions and drivers
Table 1-1 provides the information necessary to verify the correct
device driver and documentation for your device.
Table 1-1: Device revisions and files
 Identify device Find device driver Review
instruc-
tions
Review
function-
ality
Software
release
date
NAMUR
software
revision(1)
HART®
software
revision(1)
HART
universal
revision
Device
revision(2)
Manual
document
number
Changes
to soft-
ware(3)
Dec-11 1.0.0 01 7 10 00809-010
0-4007
See (3) for
list of
changes.
5 9
Jan-98 N/A 178 5 3 00809-010
0-4001
N/A
(1) The NAMUR software revision is located on the hardware tag of the device. Use a
HART-capable configuration tool to read the HART software revision.
(2) Device driver file names use device and DD revision (such as 10_01). The HART
protocol is designed to enable legacy device driver revisions to continue to
communicate with new HART devices. To access new functionality, download the
new device driver. Emerson recommends downloading new device driver files to
ensure full functionality.
(3) HART Revision 5 and 7 selectable, safety certified, local operator interface, process
alerts, scaled variable, configurable alarms, and expanded engineering units.
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2 Transmitter installation
2.1 Mounting the transmitter
2.1.1 Mount the transmitter in a liquid application
Procedure
1. Place taps to the side of the line.
2. Mount the transmitter beside or below the taps.
Mount the transmitter so that the drain/vent valves are
oriented upward.
Figure 2-1: Transmitter mounted in an in-line liquid
application
2.1.2 Mount the transmitter in a gas application
Procedure
1. Place taps in the top or side of the line.
2. Mount the transmitter beside or above the taps.
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Figure 2-2: Transmitter mounted in an in-line gas application
2.1.3 Mount the transmitter in a steam application
Procedure
1. Place taps to the side of the line.
2. Mount the transmitter beside or below the taps.
3. Fill impulse lines with water.
Figure 2-3: Transmitter mounted in an in-line steam application
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Figure 2-4: Panel and ppe mounting
Panel mount(1) Pipe mount

(1) 1.5 / 16 × 1½ panel bolts are customer supplied.
2.2 In-line gauge transmitter orientation
The low side pressure port (atmospheric reference) on the in-line
gauge transmitter is located in the neck of the transmitter, behind
the housing. The vent path is 360° around the transmitter between
the housing and sensor.
See Figure 2-5.
Keep the vent path free of any obstruction, including but not limited
to paint, dust, and lubrication by mounting the transmitter so that
the process can drain away.
Figure 2-5: In-line gauge low side pressure port
A
ALow side pressure port (atmospheric reference)
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2.3 Set the switches
Set Alarm and Security switch configuration before installation as
shown in Figure 2-6.
•The Alarm switch sets the analog output alarm to high or low.
—Default alarm is High.
•The Security switch allows (unlocked symbol) or prevents (locked
symbol) any configuration of the transmitter.
—Default security is Off (unlocked symbol).
To change the switch configuration:
Procedure
1. If the transmitter is installed, secure the loop and remove
power.
2. Remove the housing cover opposite the field terminal side.
WARNING
Do not remove the instrument cover in an explosive
atmosphere when the circuit is live.
3. Slide the Security and Alarm switches into the preferred
position using a small screwdriver.
4. Reattach the transmitter cover.
The cover must be fully engaged to comply with explosion-
proof requirements.
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Figure 2-6: Transmitter electronics board
Without LCD display With LCD/local operator interface
(LOI) display

A. Alarm switch
B. Security switch
2.4 Connect the wiring and power up
Figure 2-7: Transmitter wiring diagrams (4–20 mA)
A
B
C
A. 24 Vdc supply
B. RL ≥ 250
C. Current meter (optional)
Use shielded twisted pair cable for best results. Use 24 AWG or larger
wire that does not exceed 5,000 feet (1500 meters) in length. If
applicable, install wiring with a drip loop. Arrange the drip loop so
the bottom is lower than the conduit connections and the transmitter
housing.
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