Rosemount 3051 Pressure Transmitter and 3051CF Series Flowmeter Quick start guide

Quick Start Guide

00825-0100-4001, Rev LA

March 2020

Rosemount

™

3051 Pressure Transmitter

and 3051CF Series Flow Meter

with 4-20 mA HART

®

and 1-5 Vdc Low

Power Protocol

Contents

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

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

Housing rotation........................................................................................................................ 12

Set the jumpers..........................................................................................................................13

Connect the wiring and power up...............................................................................................14

Verify configuration................................................................................................................... 18

Trim the transmitter...................................................................................................................22

Safety Instrumented Systems (SIS).............................................................................................24

Product certifications................................................................................................................. 28

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1 About this guide

This guide provides basic guidelines for Rosemount 3051 Transmitters. It

does not provide instructions for configuration, diagnostics, maintenance,

service, troubleshooting, Explosion-Proof, Flame-Proof, or intrinsically safe

(I.S.) installations. Refer to the Rosemount 3051 Reference Manual for more

instructions. This guide is also available electronically on Emerson.com/

Rosemount.

1.1 Safety messages

Before installing the transmitter, confirm the correct device driver is loaded

on the host systems.

Procedures and instructions in this section may require special precautions

to ensure the safety of the personnel performing the operations.

WARNING

Explosions

Explosions could result in death or serious injury.

Installation of this transmitter in an explosive environment must be in

accordance with the local, national, and international standards, codes,

and practices.

Before connecting a handheld communicator in an explosive

atmosphere, ensure that 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

Process leaks could result in death or serious injury.Process leaks may cause

harm or result in death.Process leaks may cause harm or result in death.

Install and tighten process connectors before applying pressure.

To avoid process leaks, only use the O-ring designed to seal with the

corresponding flange adapter.

Electrical shock

Electrical shock could cause death or serious injury.Electrical shock can result

in death or serious injury.Electrical shock can result in death or serious injury.

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

present on leads can cause electrical shock.

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WARNING

Conduit/cable entries

Unless marked, the conduit/cable entries in the transmitter housing use a

½–14 NPT thread form. Entries marked “M20” are M20 × 1.5 thread form.

On devices with multiple conduit entries, all entries will have the same

thread form. Only use plugs, adapters, glands, or conduit with a compatible

thread form when closing these entries.

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

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

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2 Mount the transmitter

2.1 Liquid flow 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.

2.2 Gas flow applications

Procedure

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

2. Mount beside or above the taps.

Note

Bracket required to support the transmitter and the ¼-in. tubing

going into the transmitter.

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2.3 Steam flow applications

Procedure

1. Place taps to the side of the line.

2. Mount beside or below the taps.

3. Fill impulse lines with water.

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2.4 Panel and pipe mount

Figure 2-1: Panel and Pipe Mounting

Panel mount

(1)

Pipe mount

Coplanar flange

Traditional flange

Rosemount 3051T

Rosemount 3051H

(1) 5/16 x 1½ panel bolts are customer supplied.

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Quick Start Guide 7

2.5 Bolting considerations

If the transmitter installation requires assembly of the process flanges,

manifolds, or flange adapters, follow these assembly guidelines to ensure a

tight seal for optimal performance characteristics of the transmitters. Use

only bolts supplied with the transmitter or sold by Emerson as spare parts.

Figure 2-2 illustrates common transmitter assemblies with the bolt length

required for proper transmitter assembly.

Figure 2-2: Common Transmitter Assemblies

A

4 × 1.75-in.

(44 mm)

D

4 × 1.75-in.

(44 mm)

4 × 2.25-in.

(57 mm)

C

4 × 1.75-in.

(44 mm)

4

× 1.50-in.

(38 mm)

B

4 × 2.88-in.

(73 mm)

A. Transmitter with coplanar flange

B. Transmitter with coplanar flange and optional flange adapters

C. Transmitter with traditional flange and optional flange adapters

D. Transmitter with coplanar flange and optional manifold and flange

adapters

Bolts are typically carbon steel or stainless steel. Confirm the material by

viewing the markings on the head of the bolt and referencing .Table 2-1 If

bolt material is not shown in Table 2-1, contact the local Emerson

representative for more information.

2.5.1 Bolt installation

Note

Carbon steel bolts do not require lubrication and the stainless steel bolts are

coated with a lubricant to ease installation. However, no additional lubricant

should be applied when installing either type of bolt.

Procedure

1. Finger-tighten the bolts.

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2. Torque the bolts to the initial torque value using a crossing pattern

(see Table 2-1 for torque values).

3. Torque the bolts to the final torque value using the same crossing

pattern (see Table 2-1 for torque values).

4. Verify that the flange bolts are protruding through the isolator plate

before applying pressure.

Table 2-1: Torque Values for the Flange and Flange Adapter Bolts

Bolt

material

Head markings Initial

torque

Final torque

Carbon Steel

(CS)

B7M

300 in-lb 650 in-lb

Stainless

Steel (SST)

316

SW

316

STM

316

R

B8M

150 in-lb 300 in-lb

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2.6 O-rings with flange adapters

WARNING

Failure to install proper flange adapter O-rings may cause process leaks,

which can result in death or serious injury. The two flange adapters are

distinguished by unique O-ring grooves. Only use the O-ring that is designed

for its specific flange adapter, as shown below.

Figure 2-3: O-ring Location

A

B

C

D

Rosemount 3051S/3051/2051

A. Flange adapter

B. O-ring

C. PFTE-based profile (square)

D. Elastomer profile (round)

Whenever the flanges or adapters are removed, visually inspect the O-rings.

Replace them if there are any signs of damage, such as nicks or cuts. If you

replace the O-rings, re-torque the flange bolts and alignment screws after

installation to compensate for seating of the PTFE O-ring.

2.7

Environmental seal for housing

For NEMA

®

4X, IP66, and IP68 requirements, use thread sealing (PTFE) tape

or paste on male threads of conduit to provide a water and dust tight seal.

Consult factory if other ingress protection ratings are required.

Always ensure a proper seal by installing the electronics housing cover(s) so

that metal contacts metal. Use Rosemount O-rings.

For M20 threads, install conduit plugs to full thread engagement or until

mechanical resistance is met.

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2.8 In-line gage transmitter orientation

The low side pressure port (atmospheric reference) on the in-line 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 2-4.)

Keep the vent path free of any obstruction including but not limited to paint,

dust, and lubrication by mounting the transmitter so that fluids can drain

away.

Figure 2-4: In-line Gage Low Side Pressure Port

A

A. Pressure port location

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3 Housing rotation

To improve field access to wiring or to better view the optional LCD display:

Procedure

1. Loosen the housing rotation set screw using a 5/64-in. hex wrench.

2. Turn the housing left or right up to a maximum of 180 ° from its

original position.

(3)

3. Re-tighten the housing rotation set screw to a maximum of 7 in-lb

when desired location is reached.

Note

Over-rotating will damage the transmitter.

Figure 3-1: Housing Rotation

A

A. Housing rotation set screw (5/64-in.)

(3) Rosemount 3051C original position aligns with "H" side; Rosemount 3051T original

position is the opposite side of the bracket holes.

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4 Set the jumpers

If alarm and security jumpers are not installed, the transmitter will operate

normally with the default alarm condition alarm high and the security off.

Procedure

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

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

remove the instrument cover in explosive atmospheres when the

circuit is live.

3. Reposition the jumper. Avoid contact with the leads and the

terminals. See Figure 4-1 for the location of the jumper and the ON

and OFF positions.

4. Reattach the transmitter cover. The cover must be fully engaged to

comply with explosion-proof requirements.

Figure 4-1: Transmitter Electronics Board

Without LCD display With LCD display

A

B

A. Alarm

B. Security

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5 Connect the wiring and power up

Figure 5-1 shows wiring connections necessary to power a Rosemount 3051

and enable communications with a handheld communicator.

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. Ensure full contact with terminal block screw and washer. When

using a direct wiring method, wrap wire clockwise to ensure it is in

place when tightening the terminal block screw.

The use of a pin or a ferrule wire terminal is not recommended as the

connection may be more susceptible to loosening over time or under

vibration.

4. Ensure proper grounding.

It is important that the instrument cable shield:

• Be trimmed close and insulated from touching the transmitter

housing

• Be connected to the next shield if cable is routed through a

junction box

• Be connected to a good earth ground at the power supply end

Do not connect the powered signal wiring to the test terminals.

Power could damage the test diode in the test connection. Shielded

twisted pair cable should be used for best results. Use 24 AWG or

larger wire and do not exceed 5,000 ft (1500 m).

5. Plug and seal unused conduit connections.

6. 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.

7. Replace the housing cover.

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Figure 5-1: Transmitter Wiring Diagrams (4–20 mA)

A

B

C

A. Current meter

B. R

L

≥ 250Ω

C. 24 Vdc supply

Figure 5-2: Low Power Transmitter Wiring

A

B

A. Voltmeter

B. 6–12 Vdc supply

Note

Installation of the transient protection terminal block does not

provide transient protection unless the Rosemount 3051 case is

properly grounded.

5.1

Signal wiring grounding

Do not run signal wiring in conduit or open trays with power wiring, or near

heavy electrical equipment. Grounding terminations are provided on the

outside of the electronics housing and inside the terminal compartment.

These grounds are used when transient protect terminal blocks are installed

or to fulfill local regulations. See Step 2 for more information on how the

cable shieldshould be grounded.

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Procedure

1. Remove the field terminals housing cover.

2. Connect the wiring pair and ground as indicated in Figure 5-3.

• Be trimmed close and insulated from touching the transmitter

housing

• Continuously connect to the termination point

• Be connected to a good earth ground at the power supply end

Figure 5-3: Wiring

DP

B

A

D

E

A

C

A. Minimize distance

B. Trim shield and insulate

C. Ground for transient protection

D. Shield connected to power supply ground

E. Insulate shield

3. Replace the housing cover.

It is recommended the cover be tightened until there is no gap

between the cover and the housing.

4. Plug and seal unused conduit connections.

5.2

Power supply for a 4-20 mA HART

The transmitter operates on 10.5-4.2 Vdc at the terminal of the transmitter.

The dc power supply should provide power with less than two percent ripple.

Loops with a 250 Ω resistance require a minimum of 16.6 V.

Note

The transmitter must have a minimum of 250 Ω to communicate with a

Field Communicator. If you are using a single power supply to power more

than one Rosemount 3051 Transmitter, make sure the power supply used

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and the circuitry common to the transmitters do not have more than 20 Ω of

impedance at 1200 Hz.

Figure 5-4: Load Limitation

Maximum loop resistance = 43.5 x (power supply voltage - 10.5)

A. Load (Ωs)

B. Voltage (Vdc)

C. Operating region

The total resistance load is the sum of the resistance of the signal leads and

the load resistance of the controller, indicator, I.S. barriers, and related

pieces. If you use intrinsic safety barriers, include the resistance and voltage

drop.

5.3

Power supply for 1-5 Vdc HART Low Power

Low power transmitters operate on 6–12 Vdc. The dc power supply should

provide power with less than two percent ripple. The V

out

load should be 100

kW or greater.

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6 Verify configuration

6.1 Handheld communicator user interface

The Traditional Interface - Device Revision 3 and DD Revision 2 Fast Key

sequence can be found on page 12.

Figure 6-1: Traditional Interface - Device Revision 3 and DD Revision 2

The Device Dashboard - Device Revision 3 and DD Revision 6 Fast Key

sequence can be found on Table 6-2.

Figure 6-2: Device Dashboard - Device Revision 3 and DD Revision 6

Note

A check (✓) indicates the basic configuration parameters. At minimum,

these parameters should be verified as part of the configuration and startup

procedure.

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Table 6-1: Traditional Interface - Device Revision 3 and DD Revision 2

Fast Key Sequence

Function Fast Key Sequence

Alarm and Saturation Levels 1, 4, 2, 7

Analog Output Alarm Type 1, 4, 3, 2, 4

Burst Mode Control 1, 4, 3, 3, 3

Burst Operation 1, 4, 3, 3, 3

Custom Meter Configuration 1, 3, 7, 2

Custom Meter Value 1, 4, 3, 4, 3

✓ Damping 1, 3, 6

Date 1, 3, 4, 1

Descriptor 1, 3, 4, 2

Digital To Analog Trim (4–20 mA Output) 1, 2, 3, 2, 1

Disable Local Span/Zero Adjustment 1, 4, 4, 1, 7

Field Device Information 1, 4, 4, 1

Full Trim 1, 2, 3, 3

Keypad Input – Rerange 1, 2, 3, 1, 1

Local Zero and Span Control 1, 4, 4, 1, 7

Loop Test 1, 2, 2

Lower Sensor Trim 1, 2, 3, 3, 2

Message 1, 3, 4, 3

Meter Options 1, 4, 3, 4

Number of Requested Preambles 1, 4, 3, 3, 2

Poll Address 1, 4, 3, 3, 1

Poll a Multidropped Transmitter Left Arrow, 4, 1, 1

Range Values 1, 3, 3

Rerange 1, 2, 3, 1

Scaled D/A Trim (4–20 mA Output) 1, 2, 3, 2, 2

Self Test (Transmitter) 1, 2, 1, 1

Sensor Info 1, 4, 4, 2

Sensor Temperature 1, 1, 4

Sensor Trim Points 1, 2, 3, 3, 5

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Table 6-1: Traditional Interface - Device Revision 3 and DD Revision 2

Fast Key Sequence (continued)

Function Fast Key Sequence

Status 1, 2, 1, 1

✓Tag 1, 3, 1

Transfer Function (Setting Output Type) 1, 3, 5

✓Transmitter Security (Write Protect) 1, 3, 4, 4

Trim Analog Output 1, 2, 3, 2

✓Units (Process Variable) 1, 3, 2

Upper Sensor Trim 1, 2, 3, 3, 3

Zero Trim 1, 2, 3, 3, 1

Table 6-2: Traditional Interface - Device Revision 3 and DD Revision 2

Fast Key Sequence

Function Fast Key Sequence

✓Alarm and Saturation Levels 1, 7, 5

Burst Mode Control 2, 2, 4, 1

Burst Option 2, 2, 4, 2

Custom Display Configuration 2, 2, 3

✓Damping 2, 2, 1, 2

Date 2, 2, 6, 1, 4

Descriptor 2, 2, 6, 1, 5

Digital to Analog Trim (4–20 mA Output) 3, 4, 2, 1

Disable Zero & Span Adjustment 2, 2, 5, 2

Rerange with Keypad 2, 2, 2, 1

Loop Test 3, 5, 1

Lower Sensor Trim 3, 4, 1,2

Message 2, 2, 6, 1, 6

✓Range Values 2, 2, 2

Scaled D/A Trim (4–20 mA Output) 3, 4, 2, 2

Sensor Temperature/Trend (Rosemount 3051S) 2, 2, 1, 6

✓Tag 2, 2, 6, 1,1

✓Transfer Function 2, 2, 1, 3

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Rosemount 3051 Pressure Transmitter and 3051CF Series Flowmeter Quick start guide

Rosemount 3051 Pressure Transmitter and 3051CF Series Flowmeter Quick start guide

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