Emerson Rosemount 3051 Series Manuel utilisateur

Quick Start Guide

00825-0100-4001, Rev JD

September 2016

with 4-20 mA HART®and 1-5 Vdc Low Power

Protocol

Rosemount™3051 Pressure Transmitter

and Rosemount 3051CF Series Flowmeter

00825-0100-4001_RevJD.fm Page 1 Thursday, September 8, 2016 3:40 AM

September 2016

Quick Start Guide

NOTICE

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 instruction.

This manual is also available electronically EmersonProcess.com/Rosemount.

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/Flame-Proof installation, do not remove the transmitter covers when power is

applied to the unit.

Process leaks may cause harm or result in death.

To avoid process leaks, only use the o-ring designed to seal with the corresponding flange adapter.

Electrical shock can result in death or serious injury.

Avoid contact with the leads and the terminals. High voltage that may be present on leads can cause

electrical shock.

Conduit/cable entries

Unless marked, the conduit/cable entries in the transmitter housing use a 1/2–14 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, adapters, or

glands in cable/conduit entries.

Contents

Mount the transmitter. . . . . . . . . . . . . . . . 3

Consider housing rotation . . . . . . . . . . . . 7

Set the jumpers. . . . . . . . . . . . . . . . . . . . . . 8

Connect the wiring and power up . . . . . . 8

Verify configuration . . . . . . . . . . . . . . . . . 11

Trim the transmitter . . . . . . . . . . . . . . . . 14

Safety Instrumented Systems (SIS) . . . . 15

Product Certifications . . . . . . . . . . . . . . . 18

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Quick Start Guide

September 2016

1.0 Mount the transmitter

1.1 Liquid flow applications

1. Place taps to the side of the line.

2. Mount beside or below the taps.

3. Mount the transmitter so the drain/vent

valves are oriented upward.

1.2 Gas flow applications

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

2. Mount beside or above the taps.

1.3 Steam flow applications

1. Place taps to the side of the line.

2. Mount beside or below the taps.

3. Fill impulse lines with water.

Flow

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September 2016

Quick Start Guide

Figure 1. Panel and Pipe Mount

Panel mount(1)

1. Panel bolts are customer supplied.

Pipe mount

Coplanar flange

Traditional flange

Rosemount 3051T

Rosemount 3051H

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Quick Start Guide

September 2016

1.4 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 illustrates

common transmitter assemblies with the bolt length required for proper

transmitter assembly.

Figure 2. Common Transmitter Assemblies

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 1. If bolt material is

not shown in Table 1, contact the local Emerson Process Management

representative for more information.

Use the following bolt installation procedure:

1. 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.

2. Finger-tighten the bolts.

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

See Table 1 for initial torque value.

4. Torque the bolts to the final torque value using the same crossing pattern.

See Table 1 for final torque value.

5. Verify that the flange bolts are protruding through the isolator plate before

applying pressure.

4 × 1.75-in.

(44 mm)

4 × 1.75-in.

(44 mm)

4 × 2.25-in.

(57 mm)

4 ×1.75-in.

(44 mm) 4 ×1.50-in.

(38 mm)

4 × 2.88-in.

(73 mm)

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September 2016

Quick Start Guide

Table 1. Torque Values for the Flange and Flange Adapter Bolts

1.5 O-rings with flange adapters

1.6 Environmental seal for housing

Thread sealing (PTFE) tape or paste on male threads of conduit is required to

provide a water/dust tight conduit seal and meets requirements of NEMA®

Type 4X, IP66, and IP68. Consult factory if other Ingress Protection ratings are

required.

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

mechanical resistance is met.

Bolt material Head markings Initial torque Final torque

Carbon Steel (CS) 300 in-lb 650 in-lb

Stainless Steel (SST) 150 in-lb 300 in-lb

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:

A. Flange adaptor

B. O-ring

C. PTFE based (profile is square)

D. Elastomer (profile is 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-rings.

B7M

316

STM

316

B8M

Rosemount 3051S/3051/2051/3095

Rosemount 1151

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Quick Start Guide

September 2016

1.7 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 3.)

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 3. In-line Gage Low Side Pressure Port

A. Low side pressure port (atmospheric reference)

2.0 Consider housing rotation

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

1. Loosen the housing rotation set screw.

2. First rotate the housing clockwise to the desired location. If the desired

location cannot be achieved due to thread limit, rotate the housing counter

clockwise to the desired location (up to 360° from thread limit).

3. Retighten the housing rotation set screw.

Figure 4. Housing Rotation Set Screw

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

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September 2016

Quick Start Guide

3.0 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.

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 5 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 5. Transmitter Electronics Board

A. Alarm

B. Security

4.0 Connect the wiring and power up

Use the following steps to wire the transmitter:

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.

Note

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

Without LCD display With LCD display

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Quick Start Guide

September 2016

Note

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 feet (1500 meters).

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.

Figure 6 shows wiring connections necessary to power a Rosemount 3051 and

enable communications with a hand-held Field Communicator. For low-power

transmitters, refer to the Rosemount 3051 Reference Manual.

Figure 6. Transmitter Wiring Diagrams (4–20 mA)

A. Current meter

B. RL≥250Ω

C. 24 Vdc supply

Figure 7. Low Power Transmitter Wiring

A. Voltmeter

B. 6–12 Vdc supply

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September 2016

Quick Start Guide

Note

Installation of the transient protection terminal block does not provide transient protection

unless the Rosemount 3051 case is properly grounded.

4.1 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 shield should be

grounded.

1. Remove the field terminals housing cover.

2. Connect the wiring pair and ground as indicated in Figure 8. The cable shield

should:

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 8. Wiring

3. Replace the housing cover. It is recommended that the cover be tightened

until there is no gap between the cover and the housing.

4. Plug and seal unused conduit connections.

4.2 Power supply for 4–20 mA HART

Transmitter operates on 10.5–42.4 Vdc. The dc power supply should provide

power with less than two percent ripple.

A. Insulate shield D. Trim shield and insulate

B. Minimize distance E. Safety ground

C. Connect shield back to the power supply ground

00825-0100-4001_RevJD.fm Page 10 Thursday, September 8, 2016 3:40 AM

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