Rosemount Quick Start Guide: Rosemount™ 3051G Pressure Transmitter with 4-20mA HART® Protocol (Revision 5 and 7) Manuals & Guides

Quick Start Guide

00825-0100-4057, Rev EA

March 2020

Rosemount™ 3051G Pressure
Transmitter

with 4-20mA HART® Protocol (Revision 5
and 7)

Quick Start Guide March 2020

Note

Before installing the transmitter, confirm the correct device driver is loaded on the host systems. See

System readiness.

NOTICE

This installation 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 (I.S.) installations. Refer to the Rosemount 3051 Reference Manual
(document number 00809-0100-5007) for more instruction. This manual is also available
electronically on www.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 the approvals section of the
Rosemount 3051 Reference Manual 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.

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.

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.

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.

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.

Contents

System readiness......................................................................................................................... 5

Transmitter installation................................................................................................................ 6

Safety instrumented systems installation................................................................................... 18

Product certifications................................................................................................................. 19

2 Emerson.com/Rosemount

March 2020 Quick Start Guide

Declaration of Conformity..........................................................................................................28

China RoHS table........................................................................................................................32

Quick Start Guide 3

Quick Start Guide March 2020

4 Emerson.com/Rosemount

March 2020 Quick Start Guide

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. This transmitter can be configured 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 the latest device driver (DD/DTM™) is loaded on your systems to

ensure proper communications.

• Download the latest device driver at Emerson.com or FieldComm Group

1.2.1 Rosemount 3051 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: Rosemount 3051 Device Revisions and Files

Identify device Find device driver Review

Software
release
date

Dec-11 1.0.0 01 7 10 00809-0100

Jan-98 N/A 178 5 3 00809-0100

(1) NAMUR Software Revision is located on the hardware tag of the device. HART

(2) Device driver file names use Device and DD Revision, e.g. 10_01. HART Protocol

(3) HART Revision 5 and 7 Selectable, Safety Certified, Local Operator Interface,

Quick Start Guide 5

NAMUR
software
revision

1)

Software Revision can be read using a HART capable configuration tool.

is designed to enable legacy device driver revisions to continue to communicate
with new HART devices. To access new functionality, the new device driver must
be downloaded. It is recommended to download new device driver files to
ensure full functionality.

Process Alerts, Scaled Variable, Configurable Alarms, Expanded Engineering
Units.

HART
software

(

revision

HART
universal

(1)

revision

5 9

Device
revision

(2)

instructions

Manual
document
number

-4007

-4001

Review
functionality

Changes to
software

(3)

See

for list

of changes.

N/A

(3)

Quick Start Guide March 2020

2 Transmitter installation

2.1 Step 1: Mount the transmitter

2.1.1 Liquid applications

Procedure

1. Place taps to the side of the line.

2. Mount beside or below the taps.

3. Mount the transmitter so that the drain/vent valves are oriented
upward.

Figure 2-1: In-Line Liquid Applications

2.1.2 Gas applications

Procedure

1. Place taps in the top or side of the line.

2. Mount beside or above the taps.

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March 2020 Quick Start Guide

Figure 2-2: In-Line Gas Applications

2.1.3 Steam applications

Procedure

1. Place taps to the side of the line.

2. Mount beside or below the taps.

3. Fill impulse lines with water.

Figure 2-3: In-Line Steam Applications

Quick Start Guide 7

A

Quick Start Guide March 2020

Figure 2-4: Panel and Pipe Mounting

Rosemount 3051G

Panel mount

(1)

Pipe mount

(1) 1.5 / 16 × 1 ½ Panel bolts are customer supplied.

2.2 Inline gage transmitter orientation

The low side pressure port (atmospheric reference) on the inline gage
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: Inline Gage Low Side Pressure Port

A

Low side pressure port (atmospheric reference)

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March 2020 Quick Start Guide

2.3 Step 2: 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).

Use the following procedure to change the switch configuration:

Procedure

1.

If the transmitter is installed, secure the loop, and remove power.

Remove the housing cover opposite the field terminal side. Do not

2.
remove the instrument cover in explosive atmospheres 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.

Figure 2-6: Transmitter Electronics Board

Without LCD display With LCD/LOI display

A
B

Quick Start Guide 9

Alarm
Security

A

B

C

Quick Start Guide March 2020

2.4 Step 3: Connect the wiring and power up

Figure 2-7: Transmitter Wiring Diagrams (4–20 mA)

A

B

C

24 Vdc supply

RL ≥ 250

Current meter (optional)

Shielded twisted pair cable should be used 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.

CAUTION

Installation of the transient protection terminal block does not provide
transient protection unless the Rosemount 3051 case is properly grounded.

Do not run signal wiring in conduit or open trays with power wiring, or near
heavy electrical equipment.

Do not connect the powered signal wiring to the test terminals. Power could
damage the test diode in the terminal block.

Use the following steps to wire the transmitter:

Procedure

1. Remove the housing cover on the FIELD TERMINALS side.

2. Connect the positive lead to the “+” terminal (PWR/COMM) and the
negative lead to the “–” terminal.

3. Ground housing to fulfill local grounding regulations.

4. Ensure proper grounding. It is important that the instrument cable
shield be:

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DP

A

B

C

March 2020 Quick Start Guide

• Trimmed close and insulated from touching the transmitter

housing

• Connected to the next shield if cable is routed through a junction

box

• Connected to a good earth ground at the power supply end

5. If transient protection is needed, refer to section Grounding for

transient terminal block for grounding instructions.

6. Plug and seal unused conduit connections.

7. Replace the housing cover.

Figure 2-8: Wiring

A Insulate shield and shield drain wire

B Insulate exposed shield drain wire

C Connect shield back to the power supply ground

2.4.1 Grounding for transient terminal block

Ground termination is provided on the outside of the electronics housing
and inside the terminal compartment. These grounds are used when the
transient protection terminal blocks are installed. It is recommended that 18
AWG or larger wire is used to connect housing ground to earth ground
(internal or external).

If the transmitter is currently not wired for power up and communication,
follow Step 1-Step 7 of Step 3: Connect the wiring and power up When the
transmitter is properly wired, reference Figure 2-8 for internal and external
transient grounding locations.

Quick Start Guide 11