Emerson Rosemount 2051 Wireless Series Bedienungsanleitung

Quick Start Guide

00825-0400-4101, Rev BD

February 2019

Rosemount™ 2051 Pressure Transmitter

and Rosemount 2051CF Series

Flowmeter

with PROFIBUS® PA Protocol

Contents

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

Housing rotation..........................................10

Set jumpers and switches.............................11

Connect wiring and power up...................... 12

Basic configuration...................................... 16

Trim the transmitter.................................... 19

Rosemount™ 2051 Product Certifications.....20

Quick Start Guide February 2019

2 Rosemount 2051 Pressure Transmitter and Rosemount 2051CF Series Flowmeter Quick Start Guide

1 Mount the transmitter

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 the drain/vent valves are oriented upward.

1.2 Gas applications

Procedure

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

2. Mount beside or above the taps.

February 2019 Quick Start Guide

Quick Start Guide 3

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.

Example

Figure 1-1: Panel and Pipe Mounting

Panel mount(1) Pipe mount

Coplanar flange

Traditional flange

Quick Start Guide February 2019

4 Rosemount 2051 Pressure Transmitter and Rosemount 2051CF Series Flowmeter Quick Start Guide

Rosemount 2051T

(1) × 1 panel bolts are customer supplied.

1.4 Bolting considerations

If the transmitter installation requires assembly of the process flanges,

manifolds, or flange adapters, follow the 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

1-2 illustrates common transmitter assemblies with the bolt length required

for proper transmitter assembly.

February 2019 Quick Start Guide

Quick Start Guide 5

Figure 1-2: Common Transmitter Assemblies

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)

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 1-1. If bolt

material is not shown in Table 1-1, contact a local Emerson Process

Management representative for more information.

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.

Use the following bolt installation procedure:

Procedure

1. Finger tighten the bolts.

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

See Table 1-1 for initial torque value.

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

pattern. See Table 1-1 for final torque value.

4. Verify the flange bolts are protruding through the sensor module bolt

holes before applying pressure.

Quick Start Guide February 2019

6 Rosemount 2051 Pressure Transmitter and Rosemount 2051CF Series Flowmeter Quick Start Guide

Example

Table 1-1: 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

STM

316

B8M

150 in-lb 300 in-lb

1.5 O-rings

The two styles of Rosemount flange adapters (Rosemount 1151 and

Rosemount 3051/2051/2024/3095) each require a unique O-ring (see Figure

1-3). Use only the O-ring designed for the corresponding flange adapter.

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. When compressed, PTFE O-rings tend to cold

flow, which aids in their sealing capabilities.

February 2019 Quick Start Guide

Quick Start Guide 7

Figure 1-3: O-rings

A. Flange adapter

B. O-ring

C. PFTE based

D. Elastomer

Note

You should replace PTFE O-rings if you remove the flange adapter.

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.

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 1-4.)

Quick Start Guide February 2019

8 Rosemount 2051 Pressure Transmitter and Rosemount 2051CF Series Flowmeter Quick Start Guide

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

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

Figure 1-4: In-line Gage Low Side Pressure Port

A. Pressure port location

February 2019 Quick Start Guide

Quick Start Guide 9

2 Housing rotation

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

Figure 2-1: Housing Rotation

A. Housing Rotation Set Screw (5/64-inch)

Procedure

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

2. Rotate the housing clockwise to the desired location.

3. If the desired location cannot be achieved due to thread limit, rotate

the housing counterclockwise to the desired location (up to 360° from

thread limit).

4. Re-tighten the housing rotation set screw to no more than 7 in-lbs

when desired location is reached.

Quick Start Guide February 2019

10 Rosemount 2051 Pressure Transmitter and Rosemount 2051CF Series Flowmeter Quick Start Guide

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