Rosemount 2051 Pressure Transmitter and 2051CF Series Flowmeter with PROFIBUS PA Quick Start Guide

Quick Start Guide

00825-0400-4101, Rev DA

May 2021

Rosemount™ 2051 Pressure Transmitter
and Rosemount 2051CF Series Flow
Meter

with PROFIBUS® PA Protocol

Quick Start Guide May 2021

Safety messages

This guide provides basic guidelines for the Rosemount 2051HT Transmitter. It does not provide
instructions for configuration, diagnostics, maintenance, service, troubleshooting, Explosion-proof,
Flameproof, or intrinsically safe (I.S.) installations.

CAUTION

The products described in this document are NOT designed for nuclear-qualified applications. Using
non-nuclear qualified products in applications that require nuclear-qualified hardware or products may
cause inaccurate readings. For information on Rosemount nuclear-qualified products, contact your
local Emerson Sales Representative.

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 this
manual for any restrictions associated with a safe

• Before connecting a Field Communicator in an explosive atmosphere, ensure 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 may cause harm or result in death.

• Install and tighten process connectors before applying pressure.

• Do not attempt to loosen or remove flange bolts while the transmitter is in service.

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.

• Before connecting a handheld communicator in an explosive atmosphere, ensure 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 may cause harm or result in death.

• Install and tighten process connectors before applying pressure.

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.

2 Rosemount 2051 Pressure Transmitter and Rosemount 2051CF Series Flow Meter Quick Start Guide

May 2021 Quick Start Guide

WARNING

Replacement equipment or spare parts not approved by Emerson for use as spare parts could
reduce the pressure retaining capabilities of the transmitter and may render the instrument
dangerous.

• Use only bolts supplied or sold by Emerson as spare parts.

Improper assembly of manifolds to traditional flange can damage sensor module.

For safe assembly of manifold to traditional flange, bolts must break back plane of flange web (i.e., bolt
hole) but must not contact sensor module housing.

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

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

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

Set jumpers and switches........................................................................................................... 13

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

Basic configuration.....................................................................................................................18

Trim the transmitter...................................................................................................................21

Product certifications................................................................................................................. 22

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4 Rosemount 2051 Pressure Transmitter and Rosemount 2051CF Series Flow Meter Quick Start Guide

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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.

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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.

6 Rosemount 2051 Pressure Transmitter and Rosemount 2051CF Series Flow Meter Quick Start Guide

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Figure 1-1: Panel and Pipe Mounting

Panel mount

Coplanar flange

Traditional flange

(1)

Pipe mount

Rosemount 2051T

(1) × 1 panel bolts are customer supplied.

Quick Start Guide 7

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)

Quick Start Guide May 2021

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.

Figure 1-2: 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 (CS) or stainless steel (SST). 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

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. Tighten the bolts by hand.

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

8 Rosemount 2051 Pressure Transmitter and Rosemount 2051CF Series Flow Meter Quick Start Guide

See Table 1-1 for initial torque value.

B7M

316

316

316

SW

316

STM

316

R

B8M

May 2021 Quick Start Guide

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.

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

Bolt material Head markings Initial torque Final torque

CS

SST

300 in-lb 650 in-lb

150 in-lb 300 in-lb

1.5 O-rings

The two styles of Rosemount flange adapters (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 O­rings tend to cold flow, which aids in their sealing capabilities.

Quick Start Guide 9

Quick Start Guide May 2021

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

10 Rosemount 2051 Pressure Transmitter and Rosemount 2051CF Series Flow Meter Quick Start Guide

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.)

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.

A

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

A. Pressure port location

Quick Start Guide 11

A

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2 Housing rotation

To improve field access to wiring or to better view the optional LCD display
follow the procedure steps.

Figure 2-1: Housing Rotation

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

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. Retighten the housing rotation set screw to no more than 7 in-lbs
when desired location is reached.

12 Rosemount 2051 Pressure Transmitter and Rosemount 2051CF Series Flow Meter Quick Start Guide

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3 Set jumpers and switches

3.1 Security

After the transmitter is configured, you may want to protect the
configuration data from unwarranted changes. Each transmitter is equipped
with a security jumper that can be positioned ON to prevent the accidental
or deliberate change of configuration data. The jumper is labeled “Security”.
The security jumper also prevents changes made using the Local Operator
Interface.

3.2 Simulate

The simulate jumper is used in conjunction with the analog input (AI) block.
This jumper is used to simulate the pressure measurement and is used as a
lock-out feature for the AI block. To enable the simulate feature, the jumper
must be moved to the ON position after power is applied. This feature
prevents the transmitter from being accidentally left in simulate mode.

Figure 3-1: Transmitter Jumper Locations

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4 Connect wiring and power up

Use the following steps to wire the transmitter:

Procedure

1. Remove the housing cover on the field terminals side.

2. Connect the power leads to the terminals indicated on the terminal
block label.

3. Power terminals are polarity insensitive - connect positive or negative
to either terminal.

4. 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.

5. 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.

6. Plug and seal unused conduit connections.

7. 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.

8. Replace the housing cover.

14 Rosemount 2051 Pressure Transmitter and Rosemount 2051CF Series Flow Meter Quick Start Guide

A

B

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Example

Figure 4-1: Terminals

A. Power terminals
B. Ground terminal

Quick Start Guide 15

B

A

C

D E

G

F

I

I

J

H

Quick Start Guide May 2021

Figure 4-2: Wiring

A. 6234 ft. (1900 m) maximum (depending on cable characteristics)
B. Integrated power conditioner and filter
C. Terminators

D. Power supply

E. DP/PA coupler/link
F. Trunk

4.1

16 Rosemount 2051 Pressure Transmitter and Rosemount 2051CF Series Flow Meter Quick Start Guide

G. DP network
H. Signal wiring

I. Spur
J. PROFIBUS PA device

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 below for more information on how
the cable shield should be grounded.

DP

A

B

C

May 2021 Quick Start Guide

Procedure

1. Remove the field terminals housing cover.

2. Connect the wiring pair and ground as indicated in Figure 4-3. 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 4-3: Wiring

A. Trim shield and insulate
B. Insulate shield
C. Connect shield back to the power supply ground

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.

4.1.1 Power supply

The dc power supply should provide power with less than two percent ripple.
The transmitter requires between 9 and 32 Vdc at the terminals to operate
and provide complete functionality.

4.1.2 Power conditioner

The DP/PA coupler/link often includes an integrated power conditioner.

4.1.3 Grounding

Transmitters are electrically isolated to 500 Vac rms. Signal wiring cannot be
grounded.

4.1.4 Shield wire ground

Shield wire usually requires a single grounding point to avoid creating a
ground loop. The ground point is typically at the power supply.

Quick Start Guide 17

Quick Start Guide May 2021

5 Basic configuration

5.1 Configuration tasks

The transmitter can be configured via either the local operator interface
(LOI) – option code M4, or via a Class 2 master (DD or DTM™ based). The two
basic configuration tasks for the PROFIBUS PA Pressure transmitter are:

Procedure

1. Assign address.

2. Configure engineering units (scaling).

Note

Rosemount 2051 PROFIBUS PA Profile 3.02 devices are set to
identification number adaptation mode when shipped from the
factory. This mode allows the transmitter to communicate with any
PROFIBUS PA control host with either the generic Profile GSD (9700)
or Rosemount 2051 specific GSD (3333) loaded on the host;
therefore, it is not required to change the transmitter identification
number at start-up.

5.1.1 Assign address

The Rosemount 2051 Pressure Transmitter is shipped with a temporary
address of 126. This must be changed to a unique value between 0 and 125
in order to establish communication with the host. Usually, addresses 0–2
are reserved for masters or couplers, therefore transmitter addresses
between 3 and 125 are recommended.

Address can be set via either:

• LOI – see Table 5-1 and Figure 5-1

• Class 2 master – see Class 2 Master Manual for setting address

5.1.2 Configure engineering units

Unless otherwise requested, the Rosemount 2051 Pressure Transmitter
ships with the following settings:

• Measurement mode: Pressure

• Engineering units: inches H2O

• Scaling: None

Engineering units should be confirmed or configured before installation.
Units can be configured for Pressure, Flow, or Level measurement.

Measurement type, Units, Scaling, and Low Flow Cutoff (when applicable)
can be set via either:

18 Rosemount 2051 Pressure Transmitter and Rosemount 2051CF Series Flow Meter Quick Start Guide

1. ADDRESS

6. IDENTIFICATION #

7. EXIT

4. DAMPING

5. DISPLAY

3. UNITS

2. CALIBRATION

PRESSURE

FLOW
LEVEL
TEMPERATURE

0-126

ZERO
LOWER SENSOR
UPPER SENSOR

RESET FACTORY

May 2021 Quick Start Guide

• LOI – see Table 5-1 and Figure 5-1

• Class 2 master – see Table 5-2 for parameter configuration

5.2 Configuration tools

5.2.1 Local operator interface (LOI)

When ordered, the LOI can be used for commissioning the device. To
activate the LOI, push either configuration button located under the top tag
of the transmitter. See Table 5-1 and Figure 5-1 for operation and menu
information. The security jumper prevents changes made using the LOI.

Note

Buttons must be fully engaged ≈ 0.5-in. (10 mm) of travel.

Table 5-1: LOI Button Operation

Button Action Navigation Character Entry Save?

Scroll Moves down menu

categories

Enter Selects menu

category

Changes character

(1)

value

Enters character and
advances

Changes between
Save and Cancel

Saves

(1) Characters blink when they can be changed.

Figure 5-1: LOI Menu

5.3

Class 2 Master

The Rosemount 2051 PROFIBUS DD and DTM files are available at

Emerson.com/Rosemount or by contacting your local salesperson. See Table
5-2 for steps to configure the transmitter for Pressure measurement. See

Rosemount 2051 Reference Manual for Flow or Level configuration
instructions.

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Quick Start Guide May 2021

Table 5-2: Pressure Configuration via Class 2 Master

Steps Actions

Set blocks to Out of Service Put Transducer Block into Out of Service mode

Put Analog Input Block into Out of Service mode

Select Measurement Type Set Primary Value type to Pressure

Select Units Set Engineering Units

• Primary and secondary units must match

Enter Scaling Set Scale In in Transducer Block to 0–100

Set Scale Out in Transducer Block to 0–100

Set PV Scale in Analog Input Block to 0–100

Set Out Scale in Analog Input Block to 0–100

Set Linearization in Analog Input Block to No

Set blocks to Auto Put Transducer Block into Auto mode

Put Analog Input Block into Auto mode

Linearization

5.4 Host integration

5.4.1 Control host (Class 1)

The Rosemount 2051 device utilizes condensed status as recommended by
the Profile 3.02 specification and NE 107. See Rosemount 2051 Reference

Manual for condensed status bit assignment information.

The appropriate GSD file must be loaded on the control host - Rosemount
2051 specific (rmt3333.gsd) or Profile 3.02 Generic (pa139700.gsd). These
files can be found on Emerson.com/Rosemount or Profibus.com.

5.4.2 Configuration host (Class 2)

The appropriate DD or DTM file must be installed in the configuration host.
These files can be found at Emerson.com/Rosemount.

20 Rosemount 2051 Pressure Transmitter and Rosemount 2051CF Series Flow Meter Quick Start Guide

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6 Trim the transmitter

Devices are calibrated by the factory. Once installed, it is recommended to
perform a zero trim on the sensor to eliminate error due to mounting
position or static pressure effects.

This can be done by performing a zero trim via:

• LOI – see Table 5-1 and Figure 5-1

• Class 2 master – see Zero trim via Class 2 Master for parameter settings

6.1 Zero trim via Class 2 Master

Procedure

1. Place the transducer block into Out of Service (OOS) mode.

2. Apply zero pressure to device and allow to stabilize.

3. Go to Basic Setup > Calibration and set the lower calibration point to

0.0.

4. Place the transducer block to AUTO mode.

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7 Product certifications

7.1 Overview

This Appendix contains information on approved manufacturing locations,
European directive information, Ordinary Location certification, Hazardous
Locations Certifications and approval drawings.

7.2 European Directive Information

A copy of the EU Declaration of Conformity can be found at the end of the
Quick Start Guide. The most recent revision of the EU Declaration of
Conformity can be found at Emerson.com/Rosemount.

7.3 Ordinary Location Certification

As standard, the transmitter has been examined and tested to determine
that the design meets the basic electrical, mechanical, and fire protection
requirements by a nationally recognized test laboratory (NRTL) as accredited
by the Federal Occupational Safety and Health Administration (OSHA).

7.4 Hazardous Locations Certifications

Note

Device ambient temperature ratings and electrical parameters may be
limited to the levels dictated by the hazardous location certificate
parameters.

7.5

22 Rosemount 2051 Pressure Transmitter and Rosemount 2051CF Series Flow Meter Quick Start Guide

North America

E5 USA Explosionproof (XP) and Dust-Ignitionproof (DIP)

Certificate

Standards

Markings

I5 USA Intrinsic Safety (IS) and Nonincendive (NI)

Certificate

Standards

FM16US0232

FM Class 3600 – 2011, FM Class 3615 – 2006, FM Class 3616 –
2011, FM Class 3810 – 2005, ANSI/NEMA 250 – 2008,
ANSI/IEC 60529 2004

XP CL I, DIV 1, GP B, C, D; DIP CL II, DIV 1, GP E, F, G; CL III; T5
(-50 °C ≤ Ta ≤ +85 °C); Factory Sealed; Type 4X

FM16US0231X (HART®)

FM Class 3600 – 2011, FM Class 3610 – 2010, FM Class 3611 –
2004, FM Class 3810 – 2005, ANSI/NEMA 250 – 2008

May 2021 Quick Start Guide

Markings

IS CL I, DIV 1, GP A, B, C, D; CL II, DIV 1, GP E, F, G; Class III; DIV
1 when connected per Rosemount drawing 02051-1009; Class
I, Zone 0; AEx ia IIC T4; NI CL 1, DIV 2, GP A, B, C, D; T4 (-50 °C
≤ Ta ≤ +70 °C); Type 4x

Specific Condition of Use:

The Model 2051 transmitter housing contains aluminum and is considered a
potential risk of ignition by impact or friction. Care must be taken into
account during installation and use to prevent impact and friction.

Certificate

Standards

2041384 (HART/Fieldbus/PROFIBUS®)

ANSI/ISA 12.27.01-2003, CSA Std. C22.2 No.142-M1987, CSA
Std. C22.2. No.157-92

Markings

IS CL I, DIV 1, GP A, B, C, D; CL II, DIV 1, GP E, F, G; Class III; DIV
1 when connected per Rosemount drawing 02051-1009; Class
I, Zone 0; AEx ia IIC T4; NI CL 1, DIV 2, GP A, B, C, D; T4 (-50 °C
≤ Ta ≤ +70 °C); Type 4x

IE USA FISCO

Certificate

Standards

FM16US0231X (HART®)

FM Class 3600 – 2011, FM Class 3610 – 2010, FM Class 3611 –
2004, FM Class 3810 – 2005

Markings

IS CL I, DIV 1, GP A, B, C, D when connected per Rosemount
drawing 02051-1009 (-50 °C ≤ Ta ≤ +60 °C); Type 4x

Specific Condition of Use:

The Model 2051 transmitter housing contains aluminum and is considered a
potential risk of ignition by impact or friction. Care must be taken into
account during installation and use to prevent impact and friction.

Certificate

Standards

2041384 (HART/Fieldbus/PROFIBUS®)

ANSI/ISA 12.27.01-2003, CSA Std. C22.2 No. 30 -M1986, CSA
Std. C22.2 No.142-M1987, CSA Std. C22.2 No. 213 - M1987

Markings

IS CL I, DIV 1, GP A, B, C, D when connected per Rosemount
drawing 02051-1009 (-50 °C ≤ Ta ≤ +60 °C); Type 4x

E6 Canada Explosion-Proof, Dust Ignition Proof

Certificate

Standards

2041384

CAN/CSA C22.2 No. 0-10, CSA Std C22.2 No. 25-1966, CSA
Std C22.2 No. 30-M1986, CAN/CSA-C22.2 No. 94-M91, CSA
Std C22.2 No.142-M1987, CAN/CSA-C22.2 No.157-92, CSA

Quick Start Guide 23

Quick Start Guide May 2021

Std C22.2 No. 213-M1987, CAN/CSA-E60079-0:07, CAN/CSA­E60079-1:07, CAN/CSA-E60079-11-02, CAN/CSA-C22.2 No.
60529:05, ANSI/ISA-12.27.01–2003

Markings

I6 Canada Intrinsic Safety

Explosion-Proof for Class I, Divisions 1, Groups B, C, and D.
Dust-Ignition Proof for Class II and Class III, Division 1, Groups
E, F, and G. Suitable for Class I, Division 2; Groups A, B, C, and
D for indoor and outdoor hazardous locations. Class I Zone 1
Ex d IIC T5. Enclosure type 4X, factory sealed. Single Seal.

Certificate

Standards

Markings

IF Canada FISCO

Certificate

Standards

Markings

7.6 Europe

E1 ATEX Flameproof

Certificate

Standards

Markings

2041384

CSA Std. C22.2 No. 142 - M1987, CSA Std. C22.2 No. 213 ­M1987, CSA Std. C22.2 No. 157 - 92, CSA Std. C22.2 No. 213 ­M1987, ANSI/ISA 12.27.01 – 2003, CAN/CSA-E60079-0:07,
CAN/CSA-E60079-11:02

Intrinsically safe for Class I, Division 1, Groups A, B, C, and D
when connected in accordance with Rosemount drawing
02051-1008. Ex ia IIC T3C. Single Seal. Enclosure Type 4X

2041384

CSA Std. C22.2 No. 142 - M1987, CSA Std. C22.2 No. 213 ­M1987, CSA Std. C22.2 No. 157 - 92, CSA Std. C22.2 No. 213 ­M1987, ANSI/ISA 12.27.01 – 2003, CAN/CSA-E60079-0:07,
CAN/CSA-E60079-11:02

Intrinsically safe for Class I, Division 1, Groups A, B, C, and D
when connected in accordance with Rosemount drawing
02051-1008. Ex ia IIC T3C. Single Seal. Enclosure Type 4X

KEMA 08ATEX0090X

EN 60079-0:2012 + A11:2013, EN 60079-1:2014, EN
60079-26:2015

II 1/2 G Ex db IIC Ga/Gb T6 (–60 °C ≤ Ta ≤ +70 °C), T4/T5 (–

60 °C ≤ Ta ≤ +80 °C)

24 Rosemount 2051 Pressure Transmitter and Rosemount 2051CF Series Flow Meter Quick Start Guide

May 2021 Quick Start Guide

Table 7-1: Process Connection Temperature

Temperature class Process connection

temperature

T6 -60 °C to +70 °C -60 °C to +70 °C

T5 -60 °C to +80 °C -60 °C to +80 °C

T4 -60 °C to +120 °C -60 °C to +80 °C

Ambient temperature

Special Conditions for Safe Use (X):

1. Appropriate cable, glands and plugs need to be suitable for a
temperature of 5 °C greater than maximum specified temperature
for location where installed.

2. Non- standard paint options may cause risk from electrostatic
discharge. Avoid installations that could cause electrostatic build-up
on painted surfaces, and only clean the painted surfaces with a damp
cloth. If paint is ordered through a special option code, contact the
manufacturer for more information.

3. The device contains a thin wall diaphragm less than 1 mm thickness
that forms a boundary between zone 0 (process connection) and
zone 1 (all other parts of the equipment). The model code and
datasheet are to be consulted for details of the diaphragm material.
Installation, maintenance and use shall take into account the
environmental conditions to which the diaphragm shall be
subjected. The manufacturer's instructions for installation and
maintenance shall be followed in detail to assure safety during its
expected lifetime.

4. Flameproof joints are not intended for repair.

I1 ATEX Intrinsic Safety

Certificate

Standards

Markings

Baseefa08ATEX0129X

EN60079-0:2012+A11:2013, EN60079-11:2012

II 1 G Ex ia IIC T4 Ga (–60 °C ≤ Ta ≤ +70 °C)

Table 7-2: Input Parameters

HART Fieldbus/PROFIBUS

Voltage U

Current I

Power P

Capacitance C

Quick Start Guide 25

i

i

i

i

30 V 30 V

200 mA 300 mA

1 W 1.3 W

0.012 μF 0 μF

Quick Start Guide May 2021

Table 7-2: Input Parameters (continued)

HART Fieldbus/PROFIBUS

Inductance L

i

0 mH 0 mH

Special Conditions for Safe Use (X):

1. If the equipment is fitted with an optional 90V transient suppressor,
it is incapable of withstanding the 500V isolation from earth test and
this must be taken into account during installation.

2. The enclosure may be made of aluminum alloy and given a protective
polyurethane paint finish; however care should be taken to protect it
from impact and abrasion when located in Zone 0.

IA ATEX FISCO

Certificate

Standards

Markings

Baseefa08ATEX0129X

EN60079-0:2012+A11:2013, EN60079-11:2012

II 1 G Ex ia IIC T4 Ga (–60 °C ≤ Ta ≤ +60 °C)

Table 7-3: Input Parameters

FISCO

Voltage U

Current I

Power P

Capacitance C

Inductance L

i

i

i

i

i

17.5 V

380 mA

5.32 W

0 μF

0 mH

Special Conditions for Safe Use (X):

1. If the equipment is fitted with an optional 90V transient suppressor,
it is incapable of withstanding the 500V isolation from earth test and
this must be taken into account during installation.

2. The enclosure may be made of aluminum alloy and given a protective
polyurethane paint finish; however care should be taken to protect it
from impact and abrasion when located in Zone 0.

N1 ATEX Type n

Certificate

Standards

Markings

26 Rosemount 2051 Pressure Transmitter and Rosemount 2051CF Series Flow Meter Quick Start Guide

Baseefa08ATEX0130X

EN60079-0:2012+A11:2013, EN60079-15:2010

II 3 G Ex nA IIC T4 Gc (–40 °C ≤ Ta ≤ +70 °C)

May 2021 Quick Start Guide

Special Condition for Safe Use (X):

If the equipment is fitted with an optional 90V transient suppressor, it is
incapable of withstanding the 500V electrical strength test as defined in
clause 6.5.1 of by EN 60079-15:2010. This must be taken into account
during installation.

ND ATEX Dust

Certificate

Standards

Baseefa08ATEX0182X

EN60079-0:2012+A11:2013, EN60079-31:2009

Markings

Special Condition for Safe Use (X):

If the equipment is fitted with an optional 90V transient suppressor, it is
incapable of withstanding the 500V isolation from earth test and this must
be taken into account during installation.

7.7 International

E7 IECEx Flameproof

Certificate

Standards

Markings

Table 7-4: Process Connection Temperature

Temperature class Process connection

T6 -60 °C to +70 °C -60 °C to +70 °C

T5 -60 °C to +80 °C -60 °C to +80 °C

T4 -60 °C to +120 °C -60 °C to +80 °C

IECExKEM08.0024X

IEC 60079-0:2011, IEC 60079-1:2014-06, IEC
60079-26:2014-10

Ex db IIC T6...T4 Ga/Gb T6 (-60 °C ≤ Ta ≤ +70 °C), T4/T5 (-60 °C
≤ Ta ≤ +80 °C)

II 1 D Ex ta IIIC T95 °C T

temperature

105 °C Da (–20 °C ≤ Ta ≤ +85 °C)

500

Ambient
temperature

Special Conditions for Safe Use (X):

1. The device contains a thin wall diaphragm less than 1 mm thickness
that forms a boundary between zone 0 (process connection) and
zone 1 (all other parts of the equipment). The model code and
datasheet are to be consulted for details of the diaphragm material.
Installation, maintenance and use shall take into account the
environmental conditions to which the diaphragm shall be
subjected. The manufacturer's instructions for installation and

Quick Start Guide 27

Quick Start Guide May 2021

maintenance shall be followed in detail to assure safety during its
expected lifetime.

2. Appropriate cable, glands and plugs need to be suitable for a
temperature of 5 °C greater than maximum specified temperature
for location where installed.

3. Flameproof joints are not intended for repair.

4. Non-standard paint options may cause risk from electrostatic
discharge. Avoid installations that could cause electrostatic build-up
on painted surfaces, and only clean the painted surfaces with a damp
cloth. If paint is ordered through a special option code, contact the
manufacturer for more information.

I7 IECEx Intrinsic Safety

Certificate

Standards

Markings

IECEx BAS 08.0045X

IEC 60079-0:2011, IEC 60079-11:2011

Ex ia IIC T4 Ga (-60 °C ≤ Ta ≤ +70 °C)

Table 7-5: Input Parameters

HART Fieldbus/PROFIBUS

Voltage U

Current I

Power P

Capacitance C

Inductance L

i

i

i

i

i

30 V 30 V

200 mA 300 mA

1 W 1.3 W

12 nF 0 μF

0 mH 0 mH

Special Conditions for Safe Use (X):

1. If the equipment is fitted with an optional 90V transient suppressor,
it is incapable of withstanding the 500V isolation from earth test and
this must be taken into account during installation.

2. The enclosure may be made of aluminum alloy and given a protective
polyurethane paint finish; however care should be taken to protect it
from impact and abrasion when located in Zone 0.

3. The equipment contains thin wall diaphragms. The installation,
maintenance and use shall take into account the environmental
conditions to which the diaphragms will be subjected. The
manufacturer’s instructions for installation and maintenance shall be
followed in detail to assure safety during its expected lifetime.

28 Rosemount 2051 Pressure Transmitter and Rosemount 2051CF Series Flow Meter Quick Start Guide

May 2021 Quick Start Guide

IG IECEx FISCO

Certificate

Standards

Markings

IECEx BAS 08.0045X

IEC60079-0:2011, IEC60079-11:2011

Ex ia IIC T4 Ga (–60 °C ≤ Ta ≤ +60 °C)

Table 7-6: Input Parameters

FISCO

Voltage U

Current I

Power P

Capacitance C

Inductance L

i

i

i

i

i

17.5 V

380 mA

5.32 W

0 nF

0 μH

Special Conditions for Safe Use (X):

1. If the equipment is fitted with an optional 90V transient suppressor,
it is incapable of withstanding the 500V isolation from earth test and
this must be taken into account during installation.

2. The enclosure may be made of aluminum alloy and given a protective
polyurethane paint finish; however care should be taken to protect it
from impact and abrasion when located in Zone 0.

3. The equipment contains thin wall diaphragms. The installation,
maintenance and use shall take into account the environmental
conditions to which the diaphragms will be subjected. The
manufacturer’s instructions for installation and maintenance shall be
followed in detail to assure safety during its expected lifetime.

N7 IECEx Type n

Certificate

Standards

Markings

IECEx BAS 08.0046X

IEC60079-0:2011, IEC60079-15:2010

Ex nA IIC T4 Gc (-40 °C ≤ Ta ≤ +70 °C)

Special Condition for Safe Use (X):

If fitted with a 90V transient suppressor, the equipment is not capable of
withstanding the 500V electrical strength test as defined in clause 6.5.1 of
IEC60079-15:2010. This must be taken into account during installation.

Quick Start Guide 29

Quick Start Guide May 2021

7.8 Brazil

E2 INMETRO Flameproof

Certificate

Standards

UL-BR 14.0375X

ABNT NBR IEC60079-0:2008 + Errata 1:2011, ABNT NBR IEC
60079-1:2009 + Errata 1:2011, ABNT NBR IEC 60079-26:2008
+ Errata 1:2009

Markings

Ex db IIC T6...T4 Ga/Gb IP66, T6 (-60 °C ≤ Ta ≤ +70 °C), T4/T5
(-60 °C ≤ Ta ≤ +80 °C)

Special Conditions for Safe Use (X):

1. The device contains a thin wall diaphragm less than 1 mm thickness
that forms a boundary between zone 0 (process connection) and
zone 1 (all other parts of the equipment). The model code and
datasheet are to be consulted for details of the diaphragm material.
Installation, maintenance and use shall take into account the
environmental conditions to which the diaphragm will be subjected.
The manufacturer's instructions for maintenance shall be followed in
detail to assure safety during its expected lifetime.

2. Flameproof joints are not intended for repair.

3. Non-standard paint options may cause risk from electrostatic
discharge. Avoid installations that could cause electrostatic build-up
on painted surfaces, and only clean the painted surfaces with a damp
cloth. If paint is ordered through a special option code, contact the
manufacturer for more information.

I2 INMETRO Intrinsic Safety

Certificate

Standards

Markings

UL-BR 14.0759X

ABNT NBR IEC 60079-0:2013; ABNT NBR IEC 60079-11:2013

Ex ia IIC T4 Ga (-60 °C ≤ Ta ≤ +70 °C)

Table 7-7: Input Parameters

HART Fieldbus/PROFIBUS

Voltage U

Current I

Power P

Capacitance C

Inductance L

30 Rosemount 2051 Pressure Transmitter and Rosemount 2051CF Series Flow Meter Quick Start Guide

i

i

i

i

i

30 V 30 V

200 mA 300 mA

1 W 1.3 W

12 nF 0

0 0

May 2021 Quick Start Guide

Special Conditions for Safe Use (X):

1. If the equipment is fitted with an optional 90 V transient suppressor,
it is incapable of withstanding the 500 V insulation from earth test
and this must be taken into account during installation.

2. The enclosure may be made of aluminium alloy and given a
protective polyurethane paint finish; however care should be taken
to protect it from impact and abrasion when located in atmospheres
that require EPL Ga.

IB INMETRO FISCO

Certificate

Standards

UL-BR 14.0759X

ABNT NBR IEC 60079-0:2008 + Errata 1:2011; ABNT NBR IEC
60079-11:2009

Markings

Ex ia IIC T4 Ga (–60 °C ≤ Ta ≤ +60 °C)

Table 7-8: Input Parameters

FISCO

Voltage U

Current I

Power P

Capacitance C

Inductance L

i

i

i

i

i

17.5 V

380 mA

5.32 W

0 nF

0 μH

Special Conditions for Safe Use (X):

1. If the equipment is fitted with an optional 90 V transient suppressor,
it is incapable of withstanding the 500 V insulation from earth test
and this must be taken into account during installation.

2. The enclosure may be made of aluminium alloy and given a
protective polyurethane paint finish; however care should be taken
to protect it from impact and abrasion when located in atmospheres
that require EPL Ga.

7.9

China

二、产品使用注意事项

1. 产品温度组别和使用环境温度之间的关系为：

温度组别

T6 -60 ℃～+70 ℃ -60 ℃～+70 ℃

Quick Start Guide 31

使用环境温度 过程温度

Quick Start Guide May 2021

温度组别 使用环境温度 过程温度

T5 -60 ℃～+80 ℃ -60 ℃～+80 ℃

T4 -60 ℃～+80 ℃ -60 ℃～+120 ℃

2. 产品外壳设有接地端子，用户在使用时应可靠接地。

3. 安装现场应不存在对产品外壳有腐蚀作用的有害气体。

4. 现场安装时，电缆引入口须选用经国家指定防爆检验机构检验认

可、具有 Ex dⅡC Gb 防爆等级的电缆引入装置或堵封件，冗余电缆
引入口须用堵封件有效密封。

5. 用于爆炸性气体环境中，现场安装、使用和维护必须严格遵守“严禁
带电开盖！”的警告语。

6. 用户不得自行更换该产品的零部件，应会同产品制造商共同解决运
行中出现的故障，以杜绝损坏现象的发生。

7. 产品的安装、使用和维护应同时遵守产品使用说明书、
GB3836.13-2013“爆炸性环境 第 13 部分：设备的修理、检修、修

复和改造”、GB3836.15-2017“爆炸性环境 第 15 部分：电气装置的
设计、选型和安装”、GB3836.16-2017“爆炸性环境 第 16 部分：电
气装置的检查和维护”和 GB50257-2014“电气装置安装工程爆炸和
火灾危险环境电力装置施工及验收规范”的有关规定。

7.10 Korea

EP Korea Flameproof

Certificate:

Markings:

Special Condition for Safe Use (X)

See certificate for special conditions

IP Korea Intrinsic Safety

Certificate:

Markings:

Special Condition for Safe Use (X):

See certificate for special conditions.

32 Rosemount 2051 Pressure Transmitter and Rosemount 2051CF Series Flow Meter Quick Start Guide

12-KB4BO-0342X, 12-KB4BO-0344X, 19-KB4BO-0978X

Ex d IIC T6…T4 Ga/Gb, T4/T5 (-60 °C ≤ Ta ≤ +80 °C), T6(-60 °C
≤ Ta ≤ +70 °C)

12-KB4BO-0343X, 12-KB4BO-0345X, 13-KB4BO-0205X, 13­KB4BO-0207X, 18-KA4BO-0309X

Ex ia IIC T4 Ga (-60 °C ≤ Ta ≤ +70 °C)

May 2021 Quick Start Guide

7.11 Japan

E4 Japan Flameproof

Certificate

Markings

TC20598, TC20599, TC20602, TC20603 [HART]; TC20600,
TC20601, TC20604, TC20605 [Fieldbus]

Ex d IIC T5

7.12 Technical Regulations Customs Union (EAC)

EM EAC Flameproof

7.13

Certificate

Markings

Special Condition for Safe Use (X):

See certificate for special conditions.

IM EAC Intrinsically Safe

Certificate

Markings

Special Condition for Safe Use (X):

See certificate for special conditions.

Combinations

EAEC RU C-US.EX01.B.00175

Ga/Gb Ex d IIC X, T5 (–50 °C ≤ Ta ≤ +80 °C), T6 (–50 °C ≤ Ta ≤
+65 °C)

EAEC RU C-US.EX01.B.00175

0Ex ia IIC T4 Ga X (–60 °C ≤ Ta ≤ +70 °C)

K1

Combination of E1, I1, N1, and ND

K2

Combination of E2 and I2

K5

Combination of E5 and I5

K6

Combination of E6 and I6

K7

Combination of E7, I7, N7 and IECEx Dust

IECEx Dust

Certificate

Standards

Markings

Quick Start Guide 33

IECEx BAS 08.0058X

IEC60079-0:2011, IEC60079-31:2008

Ex tA IIIC T95 °C T500 105 °C Da (–20 °C ≤ Ta ≤ +85 °C)

Quick Start Guide May 2021

Special Condition for Safe Use (X):

If the equipment is fitted with an optional 90V transient suppressor, it is
incapable of withstanding a 500V isolation from earth test and this must be
taken into account during installation.

KA

KB

KC

KD

KP

KM

Combination of E1, I1, and K6

Combination of K5 and K6

Combination of E1, I1, and K5

Combination of K1, K5, and K6

Combination of EP and IP

Combination of EM and IM

7.14 Additional Certifications

SBS American Bureau of Shipping (ABS) Type Approval

Certificate

Intended Use

ABS Rules

SBV Bureau Veritas (BV) Type Approval

Certificate

BV Rules

Application

18-HS1753847-PDA

Marine & Offshore Applications – Measurement of either
Gauge or Absolute Pressure for Liquid, Gas, and Vapor.

2018 Steel Vessels Rules 1-1-4/7.7, 1-1-Appendix 3, 1-1­Appendix 4

23157/BV

Bureau Veritas Rules for the Classification of Steel Ships

Class notations: AUT-UMS, AUT-CCS, AUT-PORT and AUT­IMS; Pressure transmitter type 2051 cannot be installed on
diesel engines

SDN Det Norske Veritas (DNV) Type Approval

Certificate

Intended Use

Application

34 Rosemount 2051 Pressure Transmitter and Rosemount 2051CF Series Flow Meter Quick Start Guide

TAA000004F

DNV GL Rules for Classification - Ships and offshore units

Location classes

Type 2051

Temperature D

Humidity B

Vibration A

May 2021 Quick Start Guide

Location classes

EMC B

Enclosure D

SLL Lloyds Register (LR) Type Approval

Certificate

Application

11/60002

Environmental categories ENV1, ENV2, ENV3 and ENV5

Quick Start Guide 35

Quick Start Guide May 2021

7.15 Declaration of conformity

36 Rosemount 2051 Pressure Transmitter and Rosemount 2051CF Series Flow Meter Quick Start Guide

May 2021 Quick Start Guide

Quick Start Guide 37

Quick Start Guide May 2021

38 Rosemount 2051 Pressure Transmitter and Rosemount 2051CF Series Flow Meter Quick Start Guide

May 2021 Quick Start Guide

7.16 China RoHS

Quick Start Guide 39

*00825-0400-4101*

00825-0400-4101, Rev. DA

Quick Start Guide

May 2021

For more information:

©

2021 Emerson. All rights reserved.

Emerson Terms and Conditions of Sale are
available upon request. The Emerson logo
is a trademark and service mark of
Emerson Electric Co. Rosemount is a mark
of one of the Emerson family of
companies. All other marks are the
property of their respective owners.

www.emerson.com