Rosemount 2051 Pressure Transmitter and 2051CF Series Flowmeter with 4-20 mA HART and 1-5 Vdc Low Power HART Protocol (Rev. 5 and 7) Quick Start Guide

Quick Start Guide

00825-0100-4107, Rev FA

May 2021

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

with 4–20 mA HART® and 1–5 Vdc Low
Power HART Protocol (Revision 5 and 7)

Quick Start Guide May 2021

Safety messages

This guide provides basic guidelines for this product. 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.

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.

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.

2 Emerson.com/Rosemount

May 2021 Quick Start Guide

WARNING

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.

Contents

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

Mount the transmitter..................................................................................................................7

Housing rotation........................................................................................................................ 14

Set the switches......................................................................................................................... 15

Connect the wiring and power up...............................................................................................16

Verify configuration................................................................................................................... 19

Trim the transmitter...................................................................................................................23

Safety instrumented systems..................................................................................................... 26

Product certifications................................................................................................................. 27

Quick Start Guide 3

Quick Start Guide May 2021

4 Emerson.com/Rosemount

May 2021 Quick Start Guide

1 System readiness

1.1 Confirm HART® Revision capability

• If using HART based control or asset management systems, 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 correct device driver (DD/DTM™) is loaded on your systems to

ensure proper communications.

• Download the correct device driver at your host vendor download site,

Emerson.com or FieldComm Group.

1.2.1 Device revisions and drivers

Table 1-1 provides the information necessary to ensure you have the correct

device driver and documentation for your device.

Table 1-1: Rosemount 2051 FOUNDATION Fieldbus Device Revisions and
Files

Device
revision

(1)

2 All DD4: DD

Quick Start Guide 5

Host Device

All DD5: DD

Emerson AMS Device

Emerson AMS Device

Emerson 375/475:

driver

(2)

(DD)

Rev 1

Rev 1

Manager V

10.5 or
higher: DD
Rev 2

Manager V
8 to 10.5:
DD Rev 1

DD Rev 2

Obtain at Device driver

FieldComm
Group

FieldComm
Group

Emerson.com

Emerson.com

FieldCommun
icator.com

(DTM)

Emerson.com 00809-0200-

Reference
document

4101,

Rev BA or
newer

Quick Start Guide May 2021

Table 1-1: Rosemount 2051 FOUNDATION Fieldbus Device Revisions and
Files (continued)

Device
revision

(1)

1 All DD4: DD

Host Device

driver
(DD)

(2)

Obtain at Device driver

FieldComm

Rev 4

Group

All DD5: NA N/A

Emerson AMS Device

Emerson.com

(DTM)

document

Emerson.com 00809-0200-

4101,

Rev BA

Reference

Manager V
8 or higher:
DD Rev 2

Emerson 375/475:

DD Rev 2

FieldCommun
icator.com

(1) FOUNDATION Fieldbus® device revision can be read using a FOUNDATION Fieldbus

capable configuration tool.

(2) Device driver file names use device and DD revision. To access functionality, the

correct device driver must be installed on your control and asset management
hosts, and on your configuration tools.

Figure 1-1: Installation Flowchart

6 Emerson.com/Rosemount

May 2021 Quick Start Guide

2 Mount the transmitter

2.1 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.

2.2 Gas applications

Procedure

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

2. Mount beside or above the taps.

Quick Start Guide 7

Quick Start Guide May 2021

2.3 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.

8 Emerson.com/Rosemount

May 2021 Quick Start Guide

Figure 2-1: 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 9

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

2.4 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 2-2 illustrates common transmitter assemblies with the bolt length

required for proper transmitter assembly.

Figure 2-2: 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 2-1. If bolt material is not shown in Table 2-1, 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.

10 Emerson.com/Rosemount

See Table 2-1 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 2-1 for final torque value.

4. Verify the flange bolts are protruding through the sensor module
bolt holes before applying pressure.

Table 2-1: 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

2.5 O-rings

The two styles of Rosemount flange adapters (Rosemount
3051/2051/2024/3095) each require a unique O-ring (see Figure 2-3). 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 11

Quick Start Guide May 2021

Figure 2-3: 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.

2.6 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.

®

2.7

12 Emerson.com/Rosemount

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 fluids can drain
away.

A

May 2021 Quick Start Guide

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

A. Pressure port location

Quick Start Guide 13

A

Quick Start Guide May 2021

3 Housing rotation

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

Figure 3-1: 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.

14 Emerson.com/Rosemount

B

A

May 2021 Quick Start Guide

4 Set the switches

Set alarm and security switch configuration before installation as shown in

Figure 4-1.

• The alarm switch sets the analog output alarm to high or low.

• Default alarm is high.

• The security switch allows (

) or prevents ( ) any configuration of the

transmitter.

• Default security is off ( ).

Use the following procedure to change the switch configuration:

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. 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.

Example

Figure 4-1: Transmitter Electronics Board

Without LCD display meter

With LOI/LCD display

A. Alarm
B. Security

Quick Start Guide 15

Quick Start Guide May 2021

5 Connect the wiring and power up

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

Aluminum

Polished 316 SST

A. 24 Vdc supply
B. RL ≥ 250
C. 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 ft. (1500 m) 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.

16 Emerson.com/Rosemount

May 2021 Quick Start Guide

CAUTION

• Installation of the transient protection terminal block does not provide

transient protection unless the Rosemount 2051HT 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. 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. Ground housing to fulfill local grounding regulations.

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

• 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

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

transient terminal block” for grounding instructions.

7. Plug and seal unused conduit connections.

8. Reattach the transmitter covers. It is recommended that the cover be
tightened until there is no gap between the cover and the housing.

The covers must only be capable of being released or removed with
the aid of a tool to comply with applicable ordinary locations
requirements.

Quick Start Guide 17

DP

A

B

D

E

C

DP

A

B

D

E

C

Quick Start Guide May 2021

Figure 5-2: Wiring

Aluminum Polished 316 SST

A. Minimize distance
B. Trim shield and insulate
C. Protective grounding terminal

D. Insulate shield

E. Connect shield back to the power supply ground

5.1 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 Connect the wiring and power up step Step 1 through Step 8. When
the transmitter is properly wired, refer to Figure 5-2 for internal and external
transient grounding locations.

Note

The Rosemount 2051HT polished 316 SST housing only provides ground
termination inside the terminal compartment.

18 Emerson.com/Rosemount

May 2021 Quick Start Guide

6 Verify configuration

Verify the configuration using any HART-capable configuration tool or Local
Operator Interface (LOI) - option code M4. Configuration instructions for a
Field Communicator and LOI are included in this step.

6.1 Verifying configuration with a Field Communicator

A Rosemount 2051 DD must be installed on the Field Communicator to
verify configuration. Fast Key sequences for the latest DD are shown in Table

6-1. For Fast Key sequences using legacy DD's, contact your local Emerson

representative.

Note

Emerson recommends installing the latest DD to access the complete
functionality. Visit Emerson.com/Field-Communicator for information on
updating the DD Library.

Procedure

1. Verify device configuration using the Fast Key sequences in Table

6-1.

2. A check (✓) indicates the basic configuration parameters. At
minimum, these parameters should be verified as part of
configuration and startup.

Table 6-1: Device Revision 9 and 10 (HART 7), DD Revision 1 Fast
Key Sequence

Function HART 7 HART 5

✓ Alarm and Saturation Levels 2, 2, 2, 5, 7 2, 2, 2, 5, 7

✓ Damping 2, 2, 1, 1, 5 2, 2, 1, 1, 5

✓ Range Values 2, 2, 2 2, 2, 2

✓ Tag 2, 2, 7, 1, 1 2, 2, 7, 1, 1

✓ Transfer Function 2, 2, 1, 1, 6 2, 2, 1, 1, 6

✓ Units 2, 2, 1, 1, 4 2, 2, 1, 1, 4

Burst Mode 2, 2, 5, 3 2, 2, 5, 3

Custom Display Configuration 2, 2, 4 2, 2, 4

Date 2, 2, 7, 1, 4 2, 2, 7, 1, 3

Descriptor 2, 2, 7, 1, 5 2, 2, 7, 1, 4

Digital to Analog Trim (4–20 mA

output)

Quick Start Guide 19

3, 4, 2 3, 4, 2

Quick Start Guide May 2021

Table 6-1: Device Revision 9 and 10 (HART 7), DD Revision 1 Fast
Key Sequence (continued)

Function HART 7 HART 5

Disable Configuration Buttons 2, 2, 6, 3 2, 2, 6, 3

Rerange with Keypad 2, 2, 2, 1 2, 2, 2, 1

Loop Test 3, 5, 1 3, 5, 1

Lower Sensor Trim 3, 4, 1, 2 3, 4, 1, 2

Message 2, 2, 7, 1, 6 2, 2, 7, 1, 5

Scaled D/A Trim (4–20 mA

output)

Sensor Temperature/Trend 3, 3, 2 3, 3, 2

Upper Sensor Trim 3, 4, 1, 1 3, 4, 1, 1

Digital Zero Trim 3, 4, 1, 3 3, 4, 1, 3

Password 2, 2, 6, 5 2, 2, 6, 4

Scaled Variable 3, 2, 2 3, 2, 2

HART Revision 5 to HART

Revision 7 switch

Long Tag

Find Device

Simulate Digital Signal

(1)

(1)

(1)

3, 4, 2 3, 4, 2

2, 2, 5, 2, 3 2, 2, 5, 2, 3

2, 2, 7, 1, 2 N/A

3, 4, 5 N/A

3, 4, 5 N/A

(1) Only available in HART Revision 7 mode.

6.2

Verifying configuration with LOI

The optional LOI can be used for commissioning the device. The LOI is a two­button design with internal and external/rear buttons. On a polished
stainless steel housing, buttons are located internally both on the display
and terminal side of the transmitter. On an aluminum housing, buttons are
located on the display and externally underneath the top metal tag. To
activate the LOI, push any button. LOI button functionality is shown on the
bottom corners of the display. See Table 6-2 and Figure 6-1 for button
operation and menu information.

20 Emerson.com/Rosemount

Assign PV

HART Revision

May 2021 Quick Start Guide

Table 6-2: LOI Button Operation

Button

Left No SCROLL

Right Yes ENTER

Figure 6-1: LOI Menu

6.3 Switch HART Revision mode

If the HART configuration tool is not capable of communicating with HART
Revision 7, the Rosemount 2051 will load a generic menu with limited
capability. The following procedures will switch the HART Revision mode
from the generic menu:

Procedure

Navigate to Manual Setup → Device Information → Identification →
Message

a) To change to HART Revision 5, Enter: HART5 in the Message field.

b) To change to HART Revision 7, Enter: HART7 in the Message field.

Quick Start Guide 21

Quick Start Guide May 2021

Note

See Table 6-1 to change HART Revision when the correct device driver is
loaded.

22 Emerson.com/Rosemount

May 2021 Quick Start Guide

7 Trim the transmitter

Devices are calibrated by the factory. Once installed, it is recommended to
perform a zero trim on gage transmitters to eliminate error due to mounting
position or static pressure effects. A zero trim can be performed using either
a Field Communicator or configuration buttons.

Note

When performing a zero trim, ensure the equalization valve is open and all
wet legs are filled to the correct level.

CAUTION

It is not recommended to zero an absolute transmitter, Rosemount
2051HTA model.

Procedure

Choose your trim procedure.

a) Analog zero trim – Sets the analog output to 4 mA.

b) Also referred to as a “rerange,” it sets the lower range value (LRV)

equal to the measured pressure.

c) The display and digital HART output remains unchanged.

d) Digital zero trim – Recalibrates the sensor zero.

e) The LRV is unaffected. The pressure value will be zero (on display and

HART output). 4 mA point may not be at zero.

f) This requires the factory calibrated zero pressure is within a range of

3% of the URV [0 ± 3% x URV].

Example

URV = 250 inH2O Applied Zero Pressure = ± 0.03 x 250 inH2O = ± 7.5 inH2O
(compared to factory settings) values outside this range will be rejected by
the transmitter

7.1

Quick Start Guide 23

Trimming with a Field Communicator

Procedure

1. Connect the Field Communicator, see Connect the wiring and power

up for instructions.

2. Follow the HART menu to perform the desired zero trim.

Quick Start Guide May 2021

Analog zero (set 4 mA) Digital zero

Fast Key sequence 3, 4, 2 3, 4, 1, 3

7.2 Trimming with configuration buttons

A zero trim is to be performed using one of the three possible sets of
configuration buttons located above the terminal block or under the top
tag.

To access the configuration buttons on a polished stainless steel housing,
remove the terminal side housing cover.

To access the configuration buttons on an aluminum housing, loosen the
screw on the top tag and slide the tag on the top of the transmitter.

Figure 7-1: External or Rear/Terminal-Side Configuration Buttons

(1)

LOI

Analog zero and
span

Digital zero Aluminum

Polished 316 SST

24 Emerson.com/Rosemount

May 2021 Quick Start Guide

A. Configuration buttons

(1) LOI buttons (option M4) only offer front facing buttons on SST housing (option

1). Options D4 and DZ can still be purchased for rear/terminal-side facing
buttons.

Use one of the following procedures to perform a zero trim:

7.2.1 Perform trim with LOI (option M4)

Procedure

1. Set the transmitter pressure.

2. See Figure 6-1 for the operating menu.

a) Perform an analog zero trim by selecting Rerange.

b) Perform a digital zero trim by selecting Zero Trim.

7.2.2 Perform trim with analog zero and span (option D4)

Procedure

1. Set the transmitter pressure.

2. Press and hold the Zero button for two seconds to perform an analog
zero trim.

7.2.3 Perform trim with digital zero (option DZ)

Procedure

1. Set the transmitter pressure.

2. Press and hold the Zero button for two seconds to perform a digital
zero trim.

Quick Start Guide 25

Quick Start Guide May 2021

8 Safety instrumented systems

For safety certified installations, refer to the Rosemount 2051 Reference

Manual for installation procedure and system requirements.

26 Emerson.com/Rosemount

May 2021 Quick Start Guide

9 Product certifications

9.1 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 EmersonProcess.com/Rosemount.

9.2 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).

9.3 Hazardous Locations Certifications

Note

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

9.4 North America

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

Certificate:

Standards:

Markings:

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

Certificate:

Standards:

Markings:

Quick Start Guide 27

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

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

Quick Start Guide May 2021

Specific Conditions 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®)

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

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; 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 ≤ +60 °C); Type 4x

Specific Conditions 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
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

28 Emerson.com/Rosemount

May 2021 Quick Start Guide

Markings:

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.

I6 Canada Intrinsic Safety

Certificate:

Standards:

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

Markings:

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

IF Canada FISCO

Certificate:

Standards:

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

Markings:

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

9.5 Europe

E1 ATEX Flameproof

Certificate:

Standards:

Markings:

Table 9-1: 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

Quick Start Guide 29

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)

Ambient temperature

temperature

Quick Start Guide May 2021

Table 9-1: Process Connection Temperature (continued)

Temperature class Process connection

temperature

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 9-2: Input Parameters

®

HART

Voltage U

Current I

Power P

i

Capacitance Ci0.012 μF 0 μF

Inductance Li0 mH 0 mH

30 Emerson.com/Rosemount

30 V 30 V

i

200 mA 300 mA

i

1 W 1.3 W

Fieldbus/
PROFIBUS

®

May 2021 Quick Start Guide

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 9-3: Input Parameters

FISCO

Voltage U

Current I

Power P

i

Capacitance Ci0 μF

Inductance Li0 mH

17.5 V

i

380 mA

i

5.32 W

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:

Baseefa08ATEX0130X

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

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

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

Quick Start Guide 31

Quick Start Guide May 2021

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.

9.6 International

E7 IECEx Flameproof

Certificate:

Standards:

Markings:

Table 9-4: 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), T5/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
maintenance shall be followed in detail to assure safety during its
expected lifetime.

32 Emerson.com/Rosemount

May 2021 Quick Start Guide

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 9-5: Input Parameters

HART Fieldbus/PROFIBUS

Voltage U

Current I

Power P

i

Capacitance Ci12 nF 0 μF

Inductance Li0 mH 0 mH

30 V 30 V

i

200 mA 300 mA

i

1 W 1.3 W

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.

IG IECEx FISCO

Certificate:

Quick Start Guide 33

IECEx BAS 08.0045X

Quick Start Guide May 2021

Standards:

Markings:

IEC60079-0:2011, IEC60079-11:2011

Ex ia IIC T4 Ga (-60 °C ≤Ta ≤ +60 °C)

Table 9-6: Input Parameters

FISCO

Voltage U

Current I

Power P

i

Capacitance Ci0 nF

Inductance Li0 μH

17.5 V

i

380 mA

i

5.32 W

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.

9.7

Brazil

E2 INMETRO Flameproof

Certificate:

34 Emerson.com/Rosemount

UL-BR 14.0375X

May 2021 Quick Start Guide

Standards:

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 9-7: Input Parameters

HART Fieldbus/PROFIBUS

Voltage U

Current I

Power P

i

Capacitance Ci12 nF 0

Inductance Li0 0

30 V 30 V

i

200 mA 300 mA

i

1 W 1.3 W

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.

Quick Start Guide 35

Quick Start Guide May 2021

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 9-8: Input Parameters

FISCO

Voltage U

Current I

Power P

i

Capacitance Ci0 nF

Inductance Li0 μH

17.5 V

i

380 mA

i

5.32 W

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.

9.8

China

E3 China Flameproof

Certificate:

Standards:

Markings

GYJ18.1432X; GYJ20.1485X [Flowmeters]

GB3836.1-2010, GB3836.2-2010, GB3836.20-2010-2010

Pressure Transmitter: Ex d IIC Gb, T6~T4 Ga/Gb
Flowmeter: Ex d IIC T5/T6 Ga/Gb

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：

36 Emerson.com/Rosemount

May 2021 Quick Start Guide

温度组别 使用环境温度 过程温度

T6 -60 ℃～+70 ℃ -60 ℃～+70 ℃

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。

I3 China Intrinsic Safety

Certificate:

Standards:

Markings:

GYJ17.1225X; GYJ20.1487X [Flowmeters]

GB3836.1-2010, GB3836.4-2010, GB3836.20-2010

Ex ia IIC T4 Ga

9.9 Korea

EP Korea Flameproof

Certificate:

Markings:

Special Condition for Safe Use (X)

See certificate for special conditions

Quick Start Guide 37

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)

Quick Start Guide May 2021

IP Korea Intrinsic Safety

Certificate:

Markings:

Special Condition for Safe Use (X):

See certificate for special conditions.

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

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

9.10 Japan

E4 Japan Flameproof

Certificate:

Markings:

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

Ex d IIC T5

9.11 Technical Regulations Customs Union (EAC)

EM EAC Flameproof

Certificate:

Markings:

Special Condition for Safe Use (X):

See certificate for special conditions.

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)

IM EAC Intrinsically Safe

Certificate:

Markings:

Special Condition for Safe Use (X):

See certificate for special conditions.

9.12

38 Emerson.com/Rosemount

Combinations

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

EAEC RU C-US.EX01.B.00175

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

May 2021 Quick Start Guide

K7

Combination of E7, I7, N7 and IECEx Dust

IECEx Dust

Certificate

Standards

Markings

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

IECEx BAS 08.0058X

IEC60079-0:2011, IEC60079-31:2008

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

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

9.13 Additional Certifications

SBS American Bureau of Shipping (ABS) Type Approval

Certificate

Intended Use

ABS Rules

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

SBV Bureau Veritas (BV) Type Approval

Certificate

BV Rules

Application

SDN Det Norske Veritas (DNV) Type Approval

Certificate

Quick Start Guide 39

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

TAA000004F

Quick Start Guide May 2021

Intended Use

Application

DNV GL Rules for Classification - Ships and offshore units

Location classes

Type 2051

Temperature D

Humidity B

Vibration A

EMC B

Enclosure D

SLL Lloyds Register (LR) Type Approval

Certificate

Application

11/60002

Environmental categories ENV1, ENV2, ENV3 and ENV5

40 Emerson.com/Rosemount

May 2021 Quick Start Guide

9.14 Declaration of conformity

Quick Start Guide 41

Quick Start Guide May 2021

42 Emerson.com/Rosemount

May 2021 Quick Start Guide

Quick Start Guide 43

Quick Start Guide May 2021

9.15 China RoHS

44 Emerson.com/Rosemount

May 2021 Quick Start Guide

Quick Start Guide 45

Quick Start Guide May 2021

46 Emerson.com/Rosemount

May 2021 Quick Start Guide

Quick Start Guide 47

*00825-0100-4107*

00825-0100-4107, Rev. FA

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