Rosemount 2088, 2090P, and 2090F Pressure Transmitters with HART and 1-5Vdc Low Power Protocol Manuals & Guides

00809-0100-4108, Rev CC

Rosemount™ 2088, 2090P, and 2090F
Pressure Transmitters

with HART® and 1-5Vdc Low Power Protocol

Reference Manual

April 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.

NOTICE

Read this manual before working with the product. For personal and system safety, and for optimum product
performance, make sure you thoroughly understand the contents before installing, using, or maintaining this product.

See listed technical assistance contacts.

Customer Central

Technical support, quoting, and order-related questions.

United States - 1-800-999-9307 (7:00 am to 7:00 pm CST)

Asia Pacific- 65 777 211

Europe/ Middle East/Africa - 49 (8153) 9390

North American Response Center

Equipment service needs.

1-800-654-7768 (24 hours—includes Canada)

Outside of these areas, contact your local Emerson representative.

2

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.

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.

3

4

Reference Manual Contents

00809-0100-4108 April 2021

Contents

Chapter 1 Introduction.............................................................................................................. 7

1.1 Using this manual........................................................................................................................ 7

1.2 Models covered........................................................................................................................... 7

1.3 Product recycling/disposal...........................................................................................................8

Chapter 2 Configuration............................................................................................................ 9

2.1 Safety messages.......................................................................................................................... 9

2.2 System readiness.......................................................................................................................10

2.3 HART installation flowchart........................................................................................................13

2.4 Transmitter overview.................................................................................................................14

2.5 Configuration overview............................................................................................................. 15

2.6 Configuration basics.................................................................................................................. 15

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

2.8 Basic setup of the transmitter.................................................................................................... 20

2.9 Configuring the LCD display.......................................................................................................25

2.10 Detailed transmitter setup.......................................................................................................26

2.11 Performing transmitter tests................................................................................................... 30

2.12 Configuring burst mode...........................................................................................................32

2.13 Establishing multidrop communication................................................................................... 34

Chapter 3 Hardware Installation.............................................................................................. 37

3.1 Overview................................................................................................................................... 37

3.2 Safety messages........................................................................................................................ 37

3.3 Considerations...........................................................................................................................38

3.4 Installation procedures.............................................................................................................. 39

3.5 Process connections.................................................................................................................. 47

3.6 Rosemount 306 Manifold.......................................................................................................... 49

Chapter 4 Electrical Installation................................................................................................51

4.1 Overview................................................................................................................................... 51

4.2 Safety messages........................................................................................................................ 51

4.3 LCD display................................................................................................................................ 52

4.4 Configuring transmitter security................................................................................................54

4.5 Setting transmitter alarm.......................................................................................................... 57

4.6 Electrical considerations............................................................................................................ 57

Chapter 5 Operation and Maintenance.....................................................................................65

5.1 Overview................................................................................................................................... 65

5.2 Safety messages........................................................................................................................ 65

5.3 Recommended calibration tasks................................................................................................66

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5.4 Calibration overview..................................................................................................................66

5.5 Determining calibration frequency............................................................................................ 68

5.6 Trim the pressure signal.............................................................................................................69

5.7 Trim the analog output..............................................................................................................72

5.8 Switching HART revision............................................................................................................ 75

Chapter 6 Troubleshooting...................................................................................................... 77

6.1 Overview................................................................................................................................... 77

6.2 Safety messages........................................................................................................................ 77

6.3 Troubleshooting tables..............................................................................................................78

6.4 Diagnostic messages................................................................................................................. 81

6.5 Disassembly procedures............................................................................................................ 83

6.6 Reassembly procedures.............................................................................................................85

6.7 Service support..........................................................................................................................86

Appendix A Specifications and Reference Data............................................................................87

A.1 Rosemount™ 2088 Product Certifications.................................................................................. 87

A.2 Rosemount 2090P Product Certifications.................................................................................. 87

A.3 Rosemount 2090F Product Certifications.................................................................................. 87

A.4 Ordering Information, Specifications, and Drawings..................................................................87

Appendix B Field Communicator Menu Trees and Fast Keys........................................................ 89

B.1 Field Communicator menu trees................................................................................................89

B.2 Field communicator Fast Keys....................................................................................................93

Appendix C Local Operator Interface (LOI) Menu......................................................................... 95

C.1 LOI menu tree............................................................................................................................95

C.2 LOI menu tree - extended menu................................................................................................ 96

C.3 Number entry............................................................................................................................97

C.4 Text entry..................................................................................................................................98

6 Rosemount 2088, 2090P, and 2090F Pressure Transmitter Reference Manual

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Introduction

1 Introduction

1.1 Using this manual

The sections in this manual provide information on installing, operating, and maintaining
the Rosemount™ 2088, 2090F, and 2090P. The sections are organized as follows:

Configuration provides instruction on commissioning and operating Rosemount 2088

Transmitters. Information on software functions, configuration parameters, and online
variables is also included.

Hardware Installation contains mechanical installation instructions, and field upgrade

options.

Electrical Installation contains electrical installation instructions, and field upgrade

options.

Operation and Maintenance provides detailed information on calibrating and changing

HART® Revisions.

Troubleshooting provides troubleshooting techniques for the most common operating

problems.

Specifications and Reference Data supplies reference and specification data, as well as

ordering information.

Field Communicator Menu Trees and Fast Keys

Local Operator Interface (LOI) Menu

1.2 Models covered

The following Rosemount Pressure Transmitters are covered by this manual:

Rosemount 2088G Gage Pressure Transmitter

• Measures gage pressure up to 4000 psi (275,8 bar)

Rosemount 2088A Absolute Pressure Transmitter

• Measures absolute pressure up to 4000 psi (275,8 bar)

Rosemount 2090F Hygienic Pressure Transmitter

Rosemount 2090FG - Gage Pressure Transmitter

• Measures gage pressure up to 300 psi (20,7 bar)

Rosemount 2090FA - Absolute Pressure Transmitter

• Measures absolute pressure up to 300 psi (20,7 bar)

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Rosemount 2090P Pulp and Paper Pressure Transmitter

Rosemount 2090PG - Gage Pressure Transmitter

• Measures gage pressure up to 300 psi (20,7 bar)

Rosemount 2090PA - Absolute Pressure Transmitter

• Measures gage pressure up to 300 psi (20,7 bar)

1.3 Product recycling/disposal

Recycling of equipment and packaging should be taken into consideration and disposed of
in accordance with local and national legislation/regulations.

8 Rosemount 2088, 2090P, and 2090F Pressure Transmitter Reference Manual

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00809-0100-4108 April 2021

2 Configuration

2.1 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 nuclear­qualified hardware or products may cause inaccurate readings. For information on
Rosemount nuclear-qualified products, contact your local Emerson Sales Representative.

Reference Manual 9

Configuration Reference Manual

April 2021 00809-0100-4108

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 non­incendive 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 non­incendive 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.

2.2 System readiness

• If using HART®-based control or asset management systems, confirm the HART

capability of such systems prior to commissioning and installation. Not all systems are
capable of communicating with HART revision 7 devices.

• For instructions on how to change the HART revision of your transmitter, see Switching

HART revision.

10 Rosemount 2088, 2090P, and 2090F Pressure Transmitter Reference Manual

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2.2.1 Confirm correct device driver

Verify the latest Device Driver (DD/DTM™) is loaded on your systems to ensure proper
communications.

Procedure

1. Download the latest DD at Emerson.com or FieldCommGroup.org.

2. In the Browse by Member dropdown menu, select Rosemount business unit of

Emerson™.

3. Select desired product.

a) Within Table 2-1, use the HART Universal Revision and Device Revision

numbers to find the correct DD

Example

Table 2-1: Rosemount 2088 and 2090 with 4–20 mA HART Protocol Device Revisions
and Files

Release
date

Aug-16 1.1.xx 1.0.xx 3 7 00809-0100-4

Jan-13 N/A 1.0.xx 1 7 10 N/A

Jan-98 N/A N/A 178 5 3

(1) NAMUR revision is located on the hardware tag of the device. Differences in level 3 changes,

(2) HART software revision can be read using a HART capable configuration tool. Value shown is

(3) Device driver file names use Device and DD revision, e.g. 10_01. HAR protocol is designed to

(4) Updated electronics hardware design. Intrinsic Safety temperature classification change.
(5) HART revision 5 and 7 selectable, LOI, configurable alarms, expanded engineering units.

Device identification Device driver

identification

NAMUR
hardware
revision

signified above by xx, represent minor product changes as defined per NE53. Compatibility and
functionality are preserved and product can be used interchangeability.

minimum revision that could correspond to NAMUR revisions.

enable legacy device driver revisions to continue to communicate with new HART devices. To
access new functionality, the new DD must be downloaded. It is recommended to download new
DD files to ensure full functionality.

(1)

NAMUR
software
revision

(1)

HART
software
revision

HART
universal

(2)

revision

5 9

5 9

Device
revision

Review
instructions

Manual

(3)

document
number

108 (2088)
00809-0100-4

690 (2090)

Review
function

Change
desc.

(4)

(5)

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Table 2-2: Rosemount 2088 with 1–5 Vdc Low Power HART Protocol Device Revisions
and Files

Release
date

Jan-13 N/A 1.0.2 3 7 00809-0100-4

Jan-98 N/A N/A 178 5 3 N/A

Device identification Device driver

identification

NAMUR
hardware
revision

(1)

NAMUR
software
revision

(1)

HART
software
revision

(2)

HART
universal
revision

5 9

Device
revision

Review
instructions

Manual

(3)

document
number

108 (2088)
00809-0100-4

690 (2090)

Review
function

Change
desc.

(4)

(1) NAMUR revision is located on the hardware tag of the device. Differences in level 3 changes,

signified above by xx, represent minor product changes as defined per NE53. Compatibility and
functionality are preserved and product can be used interchangeability.

(2) HART software revision can be read using a HART capable configuration tool. Value shown is

minimum revision that could correspond to NAMUR revisions.

(3) Device driver file names use Device and DD revision, e.g. 10_01. HART protocol is designed to

enable legacy device driver revisions to continue to communicate with new HART devices. To
access new functionality, the new DD must be downloaded. It is recommended to download new
DDfiles to ensure full functionality.

(4) HART revision 5 and 7 selectable, LOI, configurable alarms, expanded engineering units.

12 Rosemount 2088, 2090P, and 2090F Pressure Transmitter Reference Manual

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2.3 HART installation flowchart

Figure 2-1: HART® Installation Flowchart

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2.4 Transmitter overview

The Rosemount 2051C Coplanar™ design is offered for Differential Pressure (DP) and
Gauge Pressure (GP) measurements. The Rosemount 2051C utilizes capacitance sensor
technology for DP and GP measurements. The Rosemount 2051T utilizes piezoresistive
sensor technology for AP and GP measurements.

The major components of the transmitter are the sensor module and the electronics
housing. The sensor module contains the oil filled sensor system (isolating diaphragm, oil
fill system, and sensor) and the sensor electronics. The sensor electronics are installed
within the sensor module and include a temperature sensor, a memory module, and the
analog-to-digital signal converter (A/D converter). The electrical signals from the sensor
module are transmitted to the output electronics in the electronics housing. The
electronics housing contains the output electronics board, the optional external
configuration buttons, and the terminal block. The basic block diagram of the transmitter
is illustrated in Figure 2-3.

When pressure is applied to the isolating diaphragm, the oil deflects the sensor which then
changes its capacitance or voltage signal. This signal is then changed to a digital signal by
the Signal Processing. The microprocessor then takes the signals from the Signal
Processing and calculates the correct output of the transmitter. This signal is then sent to
the D/A converter, which converts the signal back to the analog signal, then superimposes
the HART® signal on the 4–20 mA output.

An optional LCD display can be ordered that connects directly to the interface board which
maintains direct access to the signal terminals. The display indicates output and
abbreviated diagnostic messages. A glass display cover is provided. For 4-20 mA HART
output, the LCD display features a two-line display. The first line displays the actual
measured value, the second line of six characters displays the engineering units. The LCD
display can also display diagnostic messages.

Note

LCD display utilizes a 5 × 6 character display and can display output and diagnostic
messages. The LOI display uses an 8 × 6 character display and can display output,
diagnostic messages, and LOI menu screens. The LOI display comes with two buttons
mounted on the front of the display board. See Figure 2-2.

Figure 2-2: LCD/LOI display

LCD display

LOI display

14 Rosemount 2088, 2090P, and 2090F Pressure Transmitter Reference Manual

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Figure 2-3: Block Diagram Of Operation

A. Sensor Module

B. Electronics Board
C. 4-20 mA Signal to Control System
D. Field Communicator

2.5 Configuration overview

This section contains information on commissioning and tasks that should be performed
on the bench prior to installation, as well as tasks performed after installation as described
in Performing transmitter tests.

Field Communicator, AMSDevice Manager, and Local Operator Interface (LOI) instructions
are given to perform configuration functions. For convenience, Field Communicator Fast
Key sequences are labeled “Fast Keys,” and abbreviated LOI menus are provided for each
function below.

Full Field Communicator menu trees and Fast Key sequences are available in Field

Communicator Menu Trees and Fast Keys. LOI menu trees are available in Local Operator
Interface (LOI) Menu.

2.6 Configuration basics

CAUTION

Set all transmitter hardware adjustments during commissioning to avoid exposing the
transmitter electronics to the plant environment after installation.

The transmitter can be configured either before or after installation. Configuring the
transmitter on the bench using either a Field Communicator, AMS Device Manager, or LOI

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ensures all transmitter components are in working order prior to installation. Verify that
the security switch is set in the unlock ( ) position in order to proceed with configuration.
Refer to Figure 4-2 for switch location.

Note

LOI is available with the Rosemount 2088 (option M4) but is not available with the
Rosemount 2090F or 2090P.

2.6.1 Configuring on the bench

To configure on the bench, required equipment includes a power supply, and a Field
Communicator, AMS Device Manager, or an LOI (option M4). Wire equipment as shown in

Figure 2-4. To ensure successful HART® communication, a resistance of at least 250 Ωs

must be present between the transmitter and the power supply, see Power supply for
details. Connect the Field Communicator leads to the terminals labeled “COMM” on the
terminal block or 1–5 V configuration, wire as shown in Figure 2-4. The Field
Communicator is connected to the terminals labeled VOUT/COMM.

Figure 2-4: Wiring the Transmitter (4–20 mA HART)

A. Vdc supply

B. R L ≥ 250 (necessary for HART communication only)

16 Rosemount 2088, 2090P, and 2090F Pressure Transmitter Reference Manual

SAVE

1. Overview

2. Configure

3. Service Tools

2088 FT 45B
Online

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2.6.2 Configuration tools

Figure 2-5: Wiring the Transmitter (1–5 Vdc Low Power)

A. DC power supply

B. Voltmeter

Configuring with a Field Communicator

There are two interfaces available with the Field Communicator: Traditional and
Dashboard interfaces. All steps using a Field Communicator will be described using
Dashboard interfaces. HART® shows the Device Dashboard interface. As stated in System

readiness, it is critical that the latest DD’s are loaded into the Field Communicator. Refer to

either Emerson.com or FieldCommGroup.org to download latest DD library.

Field Communicator menu trees and Fast Keys are available in Field Communicator Menu

Trees and Fast Keys.

Figure 2-6: Device Dashboard

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Configuring with AMS Device Manager

Full configuration capability with AMS Device Manager requires loading the most current
Device Descriptor (DD) for this device. Download the latest DD at Emerson.com or

FieldCommGroup.org.

Note

All steps using AMS Device Manager will be described using version 11.5.

Configuring with a LOI

The LOI requires option code M4 to be ordered. To activate the LOI push either
configuration button. Configuration buttons are located on the LCD display (must remove
housing cover to access), or underneath the top tag of the transmitter. See Table 2-3 for
configuration button functionality and Figure 2-7 for configuration button location. When
using the LOI for configuration, several features require multiple screens for a successful
configuration. Data entered will be saved on a screen-by-screen basis; the LOI will indicate
this by flashing “SAVED” on the LCD display each time.

LOI menu trees are available in Local Operator Interface (LOI) Menu.

Figure 2-7: LOI Configuration Buttons

A. Internal configuration buttons

B. External configuration buttons

Table 2-3: LOI Button Operation

Button

Left No SCROLL

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Table 2-3: LOI Button Operation (continued)

Button

Right Yes ENTER

2.6.3 Setting the loop to manual

Whenever sending or requesting data that would disrupt the loop or change the output of
the transmitter, set the process application loop to manual control. The Field
Communicator, AMS Device Manager, or the LOI will prompt you to set the loop to manual
when necessary. The prompt is only a reminder; acknowledging this prompt does not set
the loop to manual. It is necessary to set the loop to manual control as a separate
operation.

2.7 Verify configuration

It is recommended that various configuration parameters are verified prior to installation
into the process. The various parameters are detailed out for each configuration tool.
Depending on what configuration tool(s) are available follow the steps listed relevant to
each tool.

2.7.1

Verifying configuration with Field Communicator

Configuration parameters listed in Table 2-4 are to be reviewed prior to transmitter
installation. A Full list of configuration parameters that can be reviewed and configured
using a Field Communicator are located in Field Communicator Menu Trees and Fast Keys.

Fast key sequences for the latest DD are shown in Table 2-4. For Fast Key sequences for
legacy DD's contact your local Emerson Representative.

Table 2-4: Device Dashboard Fast Key sequence

From the HOME screen, enter the Fast Key sequences listed

Function Fast Key sequence

HART 7 HART 5

Alarm and Saturation Levels 2, 2, 2, 5 2, 2, 2, 5

Damping 2, 2, 1, 1, 5 2, 2, 1, 1, 5

Primary Variable 2, 1, 1, 4, 1 2, 1, 1, 4, 1

Range Values 2, 1, 1, 4 2, 1, 1, 4

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

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2.7.2 Verifying configuration with AMS Device Manager

Right select on the device and select Configuration Properties from the menu. Navigate
the tabs to review the transmitter configuration data.

2.7.3 Verifying configuration with LOI

Press any configuration button to activate the LOI. Select VIEW CONFIG to review the
below parameters. Use the configuration buttons to navigate through the menu. The
parameters to be reviewed prior to installation include:

• Tag

• Units

• Transfer function

• Alarm and saturation levels

• Primary variable

• Range values

• Damping

2.7.4

Verifying process variables configuration

This section describes how to verify that the correct process variables are selected.

Verifying process variables with a Field Communicator

From the HOME screen, enter the Fast Key sequence.

Device Dashboard Fast Keys

3, 2, 1

Verifying process variables with AMS Device Manager

Procedure

1. Right click the device and select Overview from the menu.

2. Select the All Variables button to display the primary, secondary, tertiary and

quaternary variables.

2.8 Basic setup of the transmitter

This section goes through the necessary steps for basic setup of a pressure transmitter.

2.8.1

20 Rosemount 2088, 2090P, and 2090F Pressure Transmitter Reference Manual

Setting pressure units

The pressure unit command sets the unit of measure for the reported pressure.

UNITS

PRESS UNITS

TEMP UNITS
BACK TO MENU
EXIT MENU

PRESS UNITS

INH2O
MMHG
CMHG0C
MHG0C
PSI
PSF
ATM
TORR
PA
KPA
...

VIEW CONFIG
ZERO TRIM

UNITS

RERANGE
LOOP TEST
DISPLAY
EXTENDED MENU
EXIT MENU

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Setting pressure units with a Field Communicator

From the HOME screen, enter the Fast Key sequence.

Device Dashboard Fast Keys 2, 2, 1, 1, 4

Setting pressure units with AMS Device Manager

Procedure

1. Right select the device and select Configure.

2. Select Manual Setup and select desired units from Pressure Units dropdown menu.

3. Select Send when complete.

Setting pressure units with a LOI

Follow Figure 2-8 to select desired pressure and temperature units. Use the SCROLL and
ENTER buttons to select desired unit. Save by selecting SAVE as indicated on the LCD
display screen.

2.8.2

Figure 2-8: Selecting Units with LOI

Rerange the transmitter

The range values command sets each of the lower and upper range analog values (4 and
20 mA/1–5 Vdc points) to a pressure. The lower range point represents 0 percent of range
and the upper range point represents 100 percent of range. In practice, the transmitter
range values may be changed as often as necessary to reflect changing process
requirements.

Select from one of the methods below to rerange the transmitter. Each method is unique;
examine all options closely before deciding which method works best for your process.

• Rerange by manually setting range points with a Field Communicator, AMS Device

Manager, or LOI.

Reference Manual 21

• Rerange with a pressure input source and a Field Communicator, AMS Device Manager,

LOI, or local zero and span buttons.

RERANGE

ENTER VALUES

APPLY VALUES
BACK TO MENU
EXIT MENU

ENTER VALUES

LRV
URV
BACK TO MENU
EXIT MENU

VIEW CONFIG
ZERO TRIM
UNITS

RERANGE

LOOP TEST
DISPLAY
EXTENDED MENU
EXIT MENU

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Manually rerange the transmitter by entering range points

Entering range points with a Field Communicator

From the HOME screen, enter the Fast Key sequence.

Device Dashboard Fast Keys 2, 2, 2, 1

Entering range points with AMS Device Manager

Procedure

1. Right select the device and select Configure.

2. Select Manual Setup and select Analog Output.

3. Enter upper and lower range values in the Range Limits box and click Send.

4. Carefully read the warning and click Yes if it is safe to apply the changes.

Entering range points with a LOI

Reference Figure 2-9 to rerange the transmitter using the LOI. Enter values using SCROLL
and ENTER buttons.

Figure 2-9: Rerange with LOI

Rerange the transmitter with applied pressure source

Reranging using an applied pressure source is a way of reranging the transmitter without
entering specific 4 and 20 mA (1–5 Vdc) points.

Rerange with an applied pressure source using a Field Communicator

From the HOME screen, enter the Fast Key sequence

Device Dashboard Fast Keys

Rerange with an applied pressure source using AMS Device Manager

Procedure

1. Right select the device, select Configure.

2. Select the Analog Output tab.

3. Select Range by Applying Pressure button and follow the screen prompts range the

transmitter.
Rerange with an applied pressure source using a Field Communicator

2, 2, 2, 2

22 Rosemount 2088, 2090P, and 2090F Pressure Transmitter Reference Manual

RERANGE

ENTER VALUES

APPLY VALUES

BACK TO MENU
EXIT MENU

APPLY VALUES

LRV
URV
BACK TO MENU
EXIT MENU

VIEW CONFIG
ZERO TRIM
UNITS

RERANGE

LOOP TEST
DISPLAY
EXTENDED MENU
EXIT MENU

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00809-0100-4108 April 2021

Use Figure 2-10 to manually rerange the device using an applied pressure source
with an LOI.

Figure 2-10: Rerange with Applied Pressure Using LOI

Rerange with an applied pressure source using local zero and span buttons

If ordered, local zero and span buttons (option code D4) can be used to rerange the
transmitter with an applied pressure. Refer to Figure 2-11 for analog zero and span button
location.

To rerange the transmitter using the span and zero buttons, perform the following
procedure:

Procedure

1. Loosen the screw holding the top tag of the transmitter housing. Rotate the label to

expose the zero and span buttons.

2. Confirm device has local zero and span buttons by verifying blue retainer under the

tag.

3. Apply transmitter pressure.

4. Rerange the transmitter.

a) To change the zero (4 mA/1 V point) while maintaining the span: press and

hold zero button for at least two seconds then release.

b) To change the span (20 mA/5 V point) while maintaining the zero point:

press and hold the span button for at least two seconds and then release.

Example

Note

4 mA and 20 mA points must maintain the minimum span.

Reference Manual 23

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Figure 2-11: Analog Zero and Span Buttons

A. Zero and span buttons

Note

• If the transmitter security is on, adjustments to the zero and span will not be able to be

made. Refer to Configuring transmitter security for security information.

2.8.3

• The span is maintained when the 4 mA/1 V point is set. The span changes when the 20

mA 5 V point is set. If the lower range point is set to a value that causes the upper range
point to exceed the sensor limit, the upper range point is automatically set to the
sensor limit, and the span is adjusted accordingly.

• Regardless of the range points, the transmitter measure and report all readings within

the digital limits of the sensor. For example, if the 4 and 20 mA(1–5 Vdc) points are set
to 0 and 10 inH2O, and the transmitter detects a pressure of 25 inH2O, it digitally
outputs the 25 inH2O reading and a 250 percent of range reading.

Damping

The damping command changes the response time of the transmitter; higher values can
smooth variations in output readings caused by rapid input changes. Determine the
appropriate damping setting based on the necessary response time, signal stability, and
other requirements of the loop dynamics within your system. The damping command
utilizes floating point configuration allowing the user to input any damping value within

0.0–60.0 seconds.

Damping with a Field Communicator

Procedure

1. From the HOME screen, enter the Fast Key sequence.

Device Dashboard Fast Keys

2. Enter desired Damping Value and select APPLY.

24 Rosemount 2088, 2090P, and 2090F Pressure Transmitter Reference Manual

2, 2, 1, 1, 5

EXTENDED MENU

CALIBRAT

DAMPING

TRANSFER FUNCT
SCALED VARIAB
ASSIGN PV
TAG
ALARM SAT VALUES
PASSWORD
SIMLATE
HART REV
BACK TO MENU
EXIT MENU

VIEW CONFIG
ZERO TRIM
UNITS
RERANGE
LOOP TEST
DISPLAY

EXTENDED MENU

EXIT MENU

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Damping with AMS Device Manager

Procedure

1. Right select the device and select Configure.

2. Select Manual Setup.

3. Within the Pressure Setup box, enter desired damping value and click Send.

4. Carefully read the warning and click Yes if it is safe to apply the changes.

Damping with a LOI

Reference Figure 2-12 to enter damping values using an LOI.

Figure 2-12: Damping with LOI

2.9 Configuring the LCD display

2.9.1

Reference Manual 25

The LCD display configuration command allows customization of the LCD display to suit
application requirements. The LCD display will alternate between the selected items.

• Pressure Units

• % of Range

• Scaled Variable

• Sensor Temperature

• mA/Vdc Output

In the following instructions, the LCD display can also be configured to display
configuration information during the device startup. Select Review Parameters at Startup
to enable or disable this functionality.

Reference Configuring the LCD display with LOI for image of LCD display screen.

Configuring LCD display with a Field Communicator

From the HOME screen, enter the Fast Key sequence.

Device Dashboard Fast Keys

2, 2, 4

DISPLAY

PRESS (on/off)
SCALED (on/off)
TEMP (on/off)
%RANGE (on/off)
ANALOG (on/off)
STRTUP (on/off)
BACK TO MENU
EXIT MENU

VIEW CONFIG
ZERO TRIM
UNITS
RERANGE
LOOP TEST

DISPLAY

EXTENDED MENU
EXIT MENU

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2.9.2 Configuring LCD display with AMS Device Manager

Procedure

1. Right select on the device and select Configure.

2. Select Manual Setup, select the Display tab.

3. Select desired display options and click Send.

2.9.3 Configuring LCD display with a LOI

Refer to Figure 2-13 for LCD display configuration using a LOI.

Figure 2-13: Display with LOI

2.10 Detailed transmitter setup

2.10.1 Configuring alarm and saturation levels

26 Rosemount 2088, 2090P, and 2090F Pressure Transmitter Reference Manual

In normal operation, the transmitter will drive the output in response to pressure from the
lower to upper saturation points. If the pressure goes outside the sensor limits, or if the
output would be beyond the saturation points, the output will be limited to the associated
saturation point.

The transmitter automatically and continuously performs self-diagnostic routines. If the
self-diagnostic routines detect a failure, the transmitter drives the output to configured
alarm and value based on the position of the alarm switch. See Setting transmitter alarm.

Table 2-5: Rosemount Alarm and Saturation Values

Level 4–20 mA (1–5 Vdc) saturation 4–20 mA (1–5 Vdc alarm

Low 3.90 mA (0.97 V) ≤ 3.75 mA (0.95 V)

High 20.80 mA (5.20 V) ≥ 21.75 mA (5.40 V)

Table 2-6: NAMUR-Compliant Alarm and Saturation Values

Level 4–20 mA (1–5 Vdc) saturation 4–20 mA (1–5 Vdc) alarm

Low 3.80 mA (0.95 V) ≤ 3.60 mA (0.90 V) (.90 –.95 V)

High 20.50 mA (5.13 V) ≥22.50 mA (5.63 V) (5.05 –5.75 V)

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Table 2-7: Custom Alarm and Saturation Values

Level 4–20 mA (1–5 Vdc) saturation 4–20 mA (1–5 Vdc) alarm

Low 3.70 mA– 3.90 mA (.90 –.95 V) 3.60–3.80 mA (.90 –.95 V)

High 20.10 mA –22.90 mA (5.025 –5.725 V) 20.20 mA – 23.00 mA (5.05 –5.75 V)

Failure mode alarm and saturation levels can be configured using a Field Communicator,
AMS Device Manager, and the LOI. The following limitations exist for custom levels:

• Low alarm level must be less than the low saturation level

• High alarm level must be higher than the high saturation level

• Alarm and saturation levels must be separated by at least 0.1 mA (0.025 Vdc)

The configuration tool will provide an error message if the configuration rule is violated.

Note

Transmitters set to HART® multidrop mode send all saturation and alarm information
digitally; saturation and alarm conditions will not affect the analog output. See also

Establishing multidrop communication.

Configuring alarm and saturation levels using a Field Communicator

From the HOME screen, enter the Fast Key sequence.

Device Dashboard Fast Keys

2, 2, 2, 5

Configuring alarm and saturation levels with AMS Device Manager

Procedure

1. Right select on the device, and select Configure.

2. Select Configure Alarm and Saturation Levels button.

3. Follow screen prompts to configure Alarm and Saturation Levels.

Configuring alarm and saturation levels using LOI

Refer to Figure 2-14 for instructions to configure alarm and saturation levels.

Reference Manual 27

EXTENDED MENU

CALIBRAT
DAMPING
TRANSFER FUNCT
SCALED VARIAB
ASSIGN PV
TAG

ALARM SAT VALUES

PASSWORD
SIMULATE
HART REV
BACK TO MENU
EXIT MENU

ALARM SAT VALUES

ROSEMOUNT VALUES
NAMUR VALUES
OTHER VALUES
BACK TO MENU
EXIT MENU

VIEW CONFIG
ZERO TRIM
UNITS
RERANGE
LOOP TEST
DISPLAY

EXTENDED MENU

EXIT MENU

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Figure 2-14: Configuring Alarm and Saturation with LOI

2.10.2 Configuring scaled variable

The Scaled Variable configuration allows the user to create a relationship/conversion
between the pressure units and user-defined/custom units. There are two use cases for
Scaled Variable. The first use case is to allow custom units to be displayed on the
transmitter's LCD/LOI display. The second use case is to allow custom units to drive the
transmitter's 4–20 mA (1–5 Vdc) output.

If the user desires custom units to drive the 4–20 mA (1–5 Vdc) output, Scaled Variable
must be re-mapped as the primary variable. Refer to Re-mapping device variables.

The Scaled Variable configuration defines the following items:

• Scaled Variable units - custom units to be displayed.

• Scaled data options - defines the transfer function for the application (linear and square

root)

• Pressure value position 1 - lower known value point with consideration of linear offset.

• Scaled Variable value position 1 - custom unit equivalent to the lower known value

point.

• Pressure value position 2 - upper known value point

• Scaled Variable value position 2 - custom unit equivalent to the upper known value

point

• Linear offset - the value required to zero out pressures effecting the desired pressure

reading.

• Low flow cutoff - point at which output is driven to zero to prevent problems caused by

process noise. It is highly recommended to use the low flow cutoff function in order to
have a stable output and avoid problems due to process noise at a low flow or no flow
condition. A low flow cutoff value that is practical for the flow element in the
application should be entered.

28 Rosemount 2088, 2090P, and 2090F Pressure Transmitter Reference Manual

Configuring scaled variable using a Field Communicator

From the HOME screen, enter the Fast Key sequence.

Device Dashboard Fast Keys

2, 1, 4, 7

EXTENDED MENU

CALIBRAT
DAMPING
TRANSFER FUNCT

SCALED VARIAB

ASSIGN PV
TAG
ALARM SAT VALUES
PASSWORD
SIMLATE
HART REV
BACK TO MENU
EXIT MENU

SCALED VARIAB

VIEW SCALED

CONFIG SCALED

BACK TO MENU
EXIT MENU

VIEW CONFIG
ZERO TRIM
UNITS
RERANGE
LOOP TEST
DISPLAY

EXTENDED MENU

EXIT MENU

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Procedure

Follow the screen prompts to configure Scaled Variable.

a) When configuring for level, select Linear under Select Scaled data options.

b) When configuring for flow, select Square Root under Select Scaled data options.

Configuring scaled variable using AMS Device Manager

Procedure

1. Right select on the device and, select Configure.

2. Select the Scaled Variable tab and select the Scaled Variable button.

3. Follow screen prompts to configure Scaled Variable

a) When configuring for level applications, select Linear under Select Scaled

data options.

b) When configuring for flow applications, select Square Root under Select

Scaled data options.

2.10.3

Reference Manual 29

Configuring scaled variable using a LOI

Refer to Figure 2-15 for instructions to configure Scaled Variable using a LOI.

Figure 2-15: Configuring Scaled Variable Using a LOI

Re-mapping device variables

The re-mapping function allows the transmitter primary, secondary, tertiary, and
quaternary variables (PV, 2V, 3V, and 4V) to be configured as desired. The PV can be
remapped with a Field Communicator, AMS Device Manager, or a LOI. Variables (2V, 3V,
and 4V) can only be re-mapped via Field Communicator or AMS Device Manager.

Note

The variable assigned to the primary variable drives the 4–20 mA (1–5 Vdc) output. This
value can be selected as Pressure or Scaled Variable. The 2, 3, and 4 variables only apply if
HART® burst mode is being used.

VIEW CONFIG
ZERO TRIM
UNITS
RERANGE
LOOP TEST
DISPLAY

EXTENDED MENU

EXIT MENU

EXTENDED MEN U

CALIBRAT
DAMPING
TRANSFER FUNCT
SCALED VARIAB

ASSIGN PV

TAG
ALARM SAT VALUES
PASSWORD
SIMULATE
HART REV
BACK TO

MENU

EXIT MENU

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April 2021 00809-0100-4108

Re-mapping using a Field Communicator

From the HOME screen, enter the Fast Key sequence.

Fast Keys 2, 1, 1, 3

Re-mapping using AMS Device Manager

Procedure

1. Right select the device and select Configure.

2. Select Manual Setup and click on the HART tab.

3. Assign Primary, secondary, tertiary, and quaternary variables under Variable

Mapping.

4. Select Send.

5. Carefully read the warning and select Yes if it is safe to apply the changes.

Re-mapping using LOI

2.11 Performing transmitter tests

2.11.1 Verifying alarm level

30 Rosemount 2088, 2090P, and 2090F Pressure Transmitter Reference Manual

Refer to Figure 2-16 for instructions to remap the primary variable using a LOI.

Figure 2-16: Re-mapping with LOI

If the transmitter is repaired or replaced, verify the transmitter alarm level before
returning the transmitter to service. This is useful in testing the reaction of the control
system to a transmitter in an alarm state. Thus ensuring the control system recognizes the
alarm when activated. To verify the transmitter alarm values, perform a loop test and set
the transmitter output to the alarm value see Configuring alarm and saturation levels.

Note

Before returning transmitter to service, verify security switch is set to the correct position.
Refer to Verify configuration.

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2.11.2 Performing an analog loop test

The analog loop test command verifies the output of the transmitter, the integrity of the
loop, and the operations of any recorders or similar devices installed in the loop. It is
recommended that the 4–20 mA (1–5 Vdc) points in addition to alarm levels when
installing, repairing, or replacing a transmitter.

The host system may provide a current measurement for the 4–20 mA (1–5 Vdc) HART
output. If not, connect a reference meter to the transmitter by either connecting the
meter to the test terminals on the terminal block, or shunting transmitter power through
the meter at some point in the loop. For 1–5 V output, voltage measurement is directly
measured from Vout to (–) terminals.

Performing an analog loop test using a Field Communicator

From the HOME screen, enter the Fast Key sequence.

®

Device Dashboard Fast Keys

3, 5, 1

Performing an analog loop test using AMS Device Manager

Procedure

1. Right select on the device and, within the Methods drop down menu, move cursor

over Diagnostics and Test. In the Diagnostics and Test drop down menu select Loop
Test.

2. Select Next after setting the control loop to manual.

3. Follow Screen prompts to perform a Loop Test.

4. Select Finish to acknowledge the method is complete.

Performing analog loop test using a LOI

To perform an analog loop test using the LOI, the 4 mA (1 V), 20 mA (5 V), and custom mA
point may be set manually. Reference Figure 2-17 for instructions on how to perform a
transmitter loop test using an LOI.

Figure 2-17: Performing an Analog Loop Test Using an LOI

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2.11.3 Simulate device variables

It is possible to temporarily set the Pressure, Sensor Temperature, or Scaled Variable to a
user-defined fixed value for testing purposes. Once the simulated variable method is left,
the process variable will be automatically returned to a live measurement. Simulate device
variables is only available in HART® Revision 7 mode.

Simulate digital signal with a Field Communicator

From the HOME screen, enter the Fast Key sequence.

Device Dashboard Fast Keys 3, 5

Simulate digital signal with AMS Device Manager

Procedure

1. Right select on the device and select Service Tools.

2. Select Simulate.

3. Under Device Variables select a digital value to simulate.

a) Pressure

b) Sensor Temperature

c) Scaled Variable

4. Follow the screen prompts to simulate selected digital value.

2.12 Configuring burst mode

Burst mode is compatible with the analog signal. Because the HART® protocol features
simultaneous digital and analog data transmission, the analog value can drive other
equipment in the loop while the control system is receiving the digital information. Burst
mode applies only to the transmission of dynamic data (pressure and temperature in
engineering units, pressure in percent of range, Scaled Variable, and/or analog output),
and does not affect the way other transmitter data is accessed. However, when activated,
bust mode can slow down communication of non-dynamic data to the host by 50 percent.

Access to information other than dynamic transmitter data is obtained through the
normal poll/response method of HART communication. A Field Communicator, AMS
Device Manager, or the control system may request any of the information that is
normally available while the transmitter is in burst mode. Between each message sent by
the transmitter, a short pause allows the Field Communicator, AMS Device Manager, or a
control system to initiate a request.

2.12.1

Choosing burst mode options in HART® 5

Message content options:

• PV only

• Percent of Range

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• PV, 2V, 3V, 4V

• Process Variables

• Device Status

2.12.2 Choosing burst mode options in HART® 7

Message content options:

• PV only

• Percent of Range

• PV, 2V, 3V, 4V

• Process Variables and Status

• Process Variables

• Device Status

2.12.3

2.12.4

Choosing a HART® 7 trigger mode

When in HART 7 mode, the following trigger modes can be selected.

• Continuous (same as HART5 burst mode)

• Rising

• Falling

• Windowed

• On Change

Note

Consult your host system manufacturer for burst mode requirements.

Configuring burst mode using a Field Communicator

From the HOME screen, enter the Fast Key sequence.

Device Dashboard Fast Keys

2, 2, 5, 3

2.12.5 Configuring burst mode using AMS Device Manager

Procedure

1. Right select on the device and select Configure.

2. Select the HART tab.

3. Enter the configuration in Burst Mode Configuration fields.

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2.13 Establishing multidrop communication

Multidropping transmitters refers to the connection of several transmitters to a single
communications transmission line. Communication between the host and the
transmitters takes place digitally with the analog output of the transmitters deactivated.

Multidrop installation requires consideration of the update rate necessary from each
transmitter, the combination of transmitter models, and the length of the transmission
line. Communication with transmitters can be accomplished with HART® modems and a
host implementing HART protocol. Each transmitter is identified by a unique address and
responds to the commands defined in the HART protocol. Field Communicators and AMS
Device Manager can test, configure, and format a multidropped transmitter the same way
as a transmitter in a standard point-to-point installation.

Figure 2-18 shows a typical multidrop network. This figure is not intended as an

installation diagram.

Figure 2-18: Typical Multidrop Network (4–20 mA only)

A. HART modem

B. Power supply

The product is set to address zero (0) at the factory, which allows operation in the
standard point-to-point manner with a 4–20 mA (1–5 Vdc) output signal. To activate
multidrop communication, the transmitter address must be changed to a number from 1
to 15 for HART Revision 5, or 1–63 for HART Revision 7. This change deactivates the 4–
20 mA (1–5 Vdc) analog output, sending it to 4 mA (1 Vdc). It also disables the failure
mode alarm signal, which is controlled by the upscale/downscale switch position. Failure
signals in multidropped transmitters are communicated through HART messages.

2.13.1

Changing a transmitter address

To activate multidrop communication, the transmitter poll address must be assigned a
number from 1 to 15 for HART® Revision 5, and 1–63 for HART Revision 7. Each
transmitter in a multidropped loop must have a unique poll address.

Changing transmitter address using a Field Communicator

From the HOME screen, enter the Fast Key sequence.

34 Rosemount 2088, 2090P, and 2090F Pressure Transmitter Reference Manual

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HART Revision 5 HART Revision 7

Device Dashboard Fast Keys 2, 2, 5, 2, 1 2, 2, 5, 2, 2

Changing transmitter address using AMS Device Manager

Procedure

1. Right select on the device and select Configure.

2. In HART Revision 5 mode:

a) Select Manual Setup, select the HART tab.

b) In the Communication Settings box enter polling address in the Polling

Address box, select Send.

3. In HART Revision 7 mode:

a) Select Manual Setup, select the HART tab and select the Change Polling

Address button.

4. Carefully read the warning and click Yes if it is safe to apply the changes.

2.13.2

Communicating with a multidropped transmitter

To communicate with a multidrop transmitter, the Field Communicator or AMS Device
Manager has to be set up for Polling.

Communicating with a multidropped transmitter using a Field Communicator

Procedure

1. Select Utility and Configure HART Application.

2. Select Polling Addresses.

3. Enter 0–63.

Communicating with a multidropped transmitter using AMS Device Manager

Procedure

Select on the HART® modem icon and select Scan All Devices.

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3 Hardware Installation

3.1 Overview

The information in this section covers installation considerations for the Rosemount
2088, 2090F, and 2090P, 2090F, and 2090P with HART® protocols. A Quick Start Guide is
shipped with every transmitter to describe recommended pipe-fitting and wiring
procedures for initial installation.

Note

For transmitter disassembly and reassembly refer to Disassembly procedures, and

Reassembly procedures.

3.2 Safety messages

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

™

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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 installation.

• Before connecting a Field Communicator in an explosive atmosphere, ensure the

instruments in the loop are installed in accordance with intrinsically safe or non­incendive 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.

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.

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.

• Severe changes in the electrical loop may inhibit HART® Communication or the ability

to reach alarm values. Therefore, Rosemount cannot absolutely warrant or guarantee
that the correct Failure alarm level (HIGH or LOW) can be read by the host system at
the time of annunciation.

3.3 Considerations

Measurement accuracy depends upon proper installation of the transmitter and impulse
piping. Mount the transmitter close to the process and use a minimum of piping to
achieve best accuracy. Also, consider the need for easy access, personnel safety, practical
field calibration, and a suitable transmitter environment. Install the transmitter to
minimize vibration, shock, and temperature fluctuation.

Important

Install the enclosed pipe plug (found in the box) in unused conduit opening with a
minimum of five threads engaged to comply with explosion-proof requirements. For
tapered threads, install the plug wrench tight. For material compatibility considerations,
see Material Selection and Compatibility Consideration Technical Note on Emerson.com/

Rosemount.

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3.3.1 Installation considerations

Measurement accuracy depends upon proper installation of the transmitter and impulse
piping. Mount the transmitter close to the process and use a minimum of piping to
achieve best accuracy. Keep in mind the need for easy access, personnel safety, practical
field calibration, and a suitable transmitter environment. Install the transmitter to
minimize vibration, shock, and temperature fluctuation.

Important

Install the enclosed pipe plug (found in the box) in unused conduit opening. Engage a
minimum of five threads to comply with explosion-proof requirements. For material
compatibility considerations, see Material Selection Technical Note on Emerson.com/

Rosemount.

3.3.2

3.3.3

Environmental considerations

Best practice is to mount the transmitter in an environment that has minimal ambient
temperature change. The transmitter electronics temperature operating limits are –40 to
185 °F (–40 to 85 °C). Mount the transmitter so that it is not susceptible to vibration and
mechanical shock and does not have external contact with corrosive materials.

Mechanical considerations

Steam service

For steam service or for applications with process temperatures greater than the limits of
the transmitter, do not blow down impulse piping through the transmitter. Flush lines
with the blocking valves closed and refill lines with water before resuming measurement.

3.4 Installation procedures

3.4.1 Mount the transmitter

The following are approximate weights of each transmitter:

• Rosemount 2088 2.44 lb (1,11 kg)

• Rosemount 2090F 2.74 lb (1.24 kg)

• Rosemount 2090P 2.96 lb (1.34 kg)

In many cases its compact size and light weight makes it possible to mount directly to the
respective apparatus without using an additional mounting bracket. When this is not
desirable, mount directly to a wall, panel, or two-inch pipe using the optional mounting
bracket (see Figure 3-1).

For dimensional drawing information refer to Specifications and Reference Data.

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Note

Most transmitters are calibrated in the upright position. Mounting the transmitter in any
other position will shift the zero point to the equivalent amount of liquid head pressure
caused by the varied mounting position. To reset zero point, refer to Sensor trim overview.

Electronics housing clearance

Mount the transmitter so the terminal side is accessible. Clearance of 0.75-in. (19 mm) is
required for cover removal. Use a conduit plug in the unused conduit opening. Three
inches of clearance is required for cover removal if a meter is installed.

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.

Mounting brackets

Transmitters may be panel-mounted or pipe-mounted through an optional mounting
bracket. Refer to Table 3-1 for the complete offering and see Figure 3-1 through Figure 3-4
for dimensions and mounting configurations.

Table 3-1: Mounting Brackets

2051 brackets

Option
code

B4 X X N/A X X X N/A X N/A X

B1 N/A N/A X X N/A N/A X N/A X N/A

B2 N/A N/A X N/A X N/A X N/A X N/A

B3 N/A N/A X N/A N/A X X N/A X N/A

B7 N/A N/A X X N/A N/A X N/A N/A X

B8 N/A N/A X N/A X N/A X N/A N/A X

B9 N/A N/A X N/A N/A X X N/A N/A X

BA N/A N/A X X N/A N/A N/A X N/A X

Process connections Mounting Materials

Coplanar In-line Traditional Pipe

mount

Panel
mount

Flat
panel
mount

CS
bracket

SST
bracketCSbolts

SST
bolts

BC N/A N/A X N/A N/A X N/A X N/A X

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Figure 3-1: Mounting Bracket Option Code B4

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Figure 3-2: Mounting Bracket Option Code B4

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Figure 3-3: Mounting Bracket Option Code B4

Figure 3-4: Head Markings

* The last digit in the F593 heading marking may be any letter between A and M.

A. Carbon Steel (CS) Head Markings

B. Stainless Steel (SST) Head Markings

C. Alloy K-500 Head Markings

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3.4.2 Impulse piping

Mounting requirements

Impulse piping configurations depend on specific measurement conditions. Refer to

Figure 3-5 for examples of the following mounting configurations:

Liquid flow measurement

• Place taps to the side of the line to prevent sediment deposits on the process isolators.

• Mount the transmitter beside or below the taps so gases vent into the process line.

• Mount drain/vent valve upward to allow gases to vent.

Gas flow measurement

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

• Mount the transmitter beside or above the taps so to drain liquid into the process line.

Steam flow measurement

• Place taps to the side of the line.

• Mount the transmitter below the taps to ensure that impulse piping will remain filled

with condensate.

• In steam service above 250 °F (121 °C), fill impulse lines with water to prevent steam

from contacting the transmitter directly and to ensure accurate measurement startup.

Note

For steam or other elevated temperature services, it is important that temperatures at the
process connection do not exceed the transmitter’s process temperature limits.

Figure 3-5: Liquid Applications Installation Example

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Figure 3-6: Liquid Applications Installation Example

Figure 3-7: Steam Applications Installation Example

Best practices

The piping between the process and the transmitter must accurately transfer the pressure
to obtain accurate measurements. There are five possible sources of error: pressure
transfer, leaks, friction loss (particularly if purging is used), trapped gas in a liquid line,
liquid in a gas line, and density variations between the legs.

The best location for the transmitter in relation to the process pipe is dependent on the
process. Use the following guidelines to determine transmitter location and placement of
impulse piping:

• Keep impulse piping as short as possible.

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• For liquid service, slope the impulse piping at least 1 in./ft (8 cm/m) upward from the

transmitter toward the process connection.

• For gas service, slope the impulse piping at least 1 in./ft (8 cm/m) downward from the

transmitter toward the process connection.

• Avoid high points in liquid lines and low points in gas lines.

• Use impulse piping large enough to avoid friction effects and blockage.

• Vent all gas from liquid piping legs.

• When purging, make the purge connection close to the process taps and purge

through equal lengths of the same size pipe. Avoid purging through the transmitter.

• Keep corrosive or hot [above 250 °F (121 °C)] process material out of direct contact

with the sensor module and flanges.

• Prevent sediment deposits in the impulse piping.

• Avoid conditions that might allow process fluid to freeze within the process flange.

3.4.3

Inline process connection

Inline gauge transmitter orientation

CAUTION

Interfering or blocking the atmospheric reference port will cause the transmitter to output
erroneous pressure values.

The low side pressure port on the inline gauge transmitter is located in the neck of the
transmitter, behind the housing. The vent path is 360 degrees around the transmitter
between the housing and sensor (See Figure 3-8).

Keep the vent path free of any obstruction, such as paint, dust, and lubrication by
mounting the transmitter so that the process can drain away.

Figure 3-8: Inline gauge low side pressure port

A. Low side pressure port (atmospheric reference)

WARNING

Do not apply torque directly to the sensor module. Rotation between the sensor module
and the process connection can damage the electronics.

To avoid damage, apply torque only to the hex-shaped process connection:

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A. Sensor module

B. Process connection

3.5 Process connections

3.5.1 Rosemount 2090P

Installing the Rosemount 2090P transmitter involves attaching a weld spud to the tapped
process vessel, attaching the transmitter to the weld spud, and making electrical
connections. If you intend to use an existing weld spud, proceed to the transmitter section
of this installation procedure.

3.5.2

Note

The Rosemount 2090P isolating diaphragm can be mounted flush with the inside diameter
of any vessel larger than three inches in diameter.

CAUTION

Installation of the weld spud should be performed by a skilled welder using a TIG welder.
Improper installation may result in weld spud distortion.

Weld spud

Procedure

1. Using the appropriate size hole saw, cut a hole in the process vessel to accept the

weld spud. The diameter for a weld spud with heat isolator groove is 2.37-in. (60
mm); when compatible with 1-in. PMC® process connection style spud, the
diameter is 1.32 in. (33,4 mm) and when compatible with G1 process connection,
the diameter is 2.00 inches (51 mm). The hole should produce a tight, uniform fit
when coupled with the weld spud.

2. Bevel the edge of the vessel hole to accept filler material.

3. Remove the weld spud from the transmitter and remove the PTFE gasket from the

weld spud.

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CAUTION

Excessive heat will distort the weld spud. Weld in sections, as shown in Figure 2-5,
cooling each section with a wet cloth. Allow adequate cooling between passes. To
reduce the chances of distorting the weld spud (for 1.5-in. connection), use a heat
sink—Rosemount Part Number 02088-0196-0001. For G1 connection, Rosemount
Part Number 02088-0196-0007.

4. Position the weld spud in the vessel hole, place heat sink and tack spud in place

using the welding sequence shown in Figure 3-7. Cool each section with a wet cloth
before proceeding to the next section.

5. Weld the spud in place using 0.030 to 0.045-in. (0,762 to 1,143 mm) stainless steel

rod as filler in the beveled area. Using between 100 and 125 amps., adjust the
amperage for 0.080-in. (2,032 mm) penetration.

3.5.3

Transmitter

Procedure

1. After the weld spud has cooled, remove the heat sink and install the PTFE gasket

into the weld spud. Ensure that the gasket is properly positioned within the weld
spud; improper placement could cause a process leak.

2. Position the transmitter into the spud and begin to engage the threads. Rotate the

transmitter prior to seating the threads completely to enable access to the housing
compartments, the conduit entry, and the LCD display.

3. Hand tighten the transmitter using the knurled retaining ring, then snug an

additional 1/8 turn with adjustable pliers.

Example

Important

Do not over-tighten the retaining ring. A spanner wrench hole is located on the knurled
portion of the retaining ring to assist in transmitter removal if it is over-tightened.

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Figure 3-9: PTFE Installing the Weld Spud

Code "C" in Model Structure or P/N 02088-0195-0005

A. 100–125 Amps recommended

B. Heat isolation grooves

C. Weld spud

D. Bevelled edge

E. Process

3.6 Rosemount 306 Manifold

The Rosemount 306 Integral Manifold is used with the Rosemount 2088 in-line
transmitters to provide block-and-bleed valve capabilities of up to 10000 psi (690 bar).

Figure 3-10: Rosemount 2088 and 306 In-line Manifold

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3.6.1 Rosemount 306 Integral Manifold installation procedure

Assemble the Rosemount 306 Manifold to the Rosemount 2088 In-line transmitter with a
thread sealant.

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4 Electrical Installation

4.1 Overview

The information in this section covers installation considerations for the Rosemount
2088, 2090F, and 2090P. A Quick Start Guide is shipped with every transmitter to describe
pipe-fitting, wiring procedures, and basic configuration for initial installation.

Note

For transmitter disassembly and reassembly refer to sections Disassembly procedures, and

Reassembly procedures.

4.2 Safety messages

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

™

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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 installation.

• Before connecting a Field Communicator in an explosive atmosphere, ensure the

instruments in the loop are installed in accordance with intrinsically safe or non­incendive 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.

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.

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.

• Severe changes in the electrical loop may inhibit HART® Communication or the ability

to reach alarm values. Therefore, Rosemount cannot absolutely warrant or guarantee
that the correct Failure alarm level (HIGH or LOW) can be read by the host system at
the time of annunciation.

4.3 LCD display

Transmitters ordered with the LCD display option (M5) are shipped with the display
installed. Installing the display on an existing 2051 Transmitter requires a small instrument
screwdriver. Carefully align the desired display connector with the electronics board
connector. If connectors don't align, the display and electronics board are not compatible.

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Figure 4-1: LCD Display Assembly

4.3.1

A. LCD display

B. Extended Cover

C. Captive Screws

Rotating LOI/LCD display

Procedure

1. Secure the loop to manual control and remove power to transmitter.

2. Remove transmitter housing cover.

3. Remove screws from the LCD display and rotate to desired orientation.

a) Insert 10 pin connector into the display board for the correct orientation.

Carefully align pins for insertion into the output board.

4. Re-insert screws.

5. Reattach transmitter housing cover; it is recommended the cover be tightened until

there is no gap between the cover and housing to comply with explosion proof
requirements.

6. Re-attach power and return loop to automatic control.

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4.4 Configuring transmitter security

There are four security methods with the Rosemount 2088, 2090F, and 2090P
transmitters.

• Security switch

• HART® Lock

• Configuration Buttons lock

• LOI password

Figure 4-2: 4–20 mA electronics board

Without LCD display meter

A. Alarm
B. Security

Note

1–5 Vdc Alarm and Security switches are located in the same location as 4–20 mA output
boards.

With LCD display /LOI display

4.4.1

54 Rosemount 2088, 2090P, and 2090F Pressure Transmitter Reference Manual

Setting security switch

• The simulate switch enables or disables simulated alerts and simulated AI Block status

and values. The default simulate switch position is enabled.

• The Security switch allows (unlocked symbol) or prevents (locked symbol) any

configuration of the transmitter.

— Default security is off (unlocked symbol).

— The security switch can be enabled or disabled in software.

Use the following procedure to change the switch configuration:

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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 simulate switches into the preferred position.

4. Reattach transmitter housing cover; it is recommended the cover be tightened until

there is no gap between the cover and housing to comply with explosion proof
requirements.

4.4.2 HART lock

The HART Lock prevents changes to the transmitter configuration from all sources; all
changes requested via HART, LOI, and local configuration buttons will be rejected. The
HART Lock can only be set via HART communication, and is only available in HART Revision
7 mode. The HART Lock can be enabled or disabled with a Field Communicator or AMS
Device Manager.

Configuring HART lock using Field Communicator

4.4.3

From the HOME screen, enter the Fast Key sequence.

Device Dashboard Fast Keys

2, 2, 6, 4

Configuring HART lock using AMS Device Manager

Procedure

1. Right select the device and select Configure.

2. Under Manual Setup select the Security tab.

3. Select Lock/Unlock button under HART Lock (Software) and follow the screen

prompts.

Configuration button lock

The configuration button lock disables all local button functionality. Changes to the
transmitter configuration from the LOI and local buttons will be rejected. Local external
keys can be locked via HART communication only.

Configuring configuration button lock using a Field Communicator

From the HOME screen, enter the Fast Key sequence

Device Dashboard Fast Keys

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Configuring configuration button lock using AMS Device Manager

Procedure

1. Right select the device and select Configure.

2. Under Manual Setup select the Security tab.

3. Within the Configuration Buttons dropdown menu select Disabled to lock external

local keys.

4. Select Send.

5. Confirm service reason and click Yes.

4.4.4

LOI password

A Local Operator Interface Password can be entered and enabled to prevent review and
modification of device configuration via the LOI. This does not prevent configuration from
HART or external keys (analog zero and span; Digital zero trim). The LOI password is a four
digit code that is to be set by the user. If the password is lost or forgotten the master
password is “9307”.

The LOI password can be configured and enabled/disabled by HART communication via a
Field Communicator, AMS Device Manager, or the LOI.

Configuring password with Field Communicator

From the HOME screen, enter the Fast Key sequence.

Device Dashboard Fast Keys

Configuring password with AMS Device Manager

Procedure

1. Right select the device and select Configure.

2. Under Manual Setup select the Security tab.

3. Within the LOI select the Configure Password button and follow the screen

prompts.

2, 2, 6, 5, 2

56 Rosemount 2088, 2090P, and 2090F Pressure Transmitter Reference Manual

EXTENDED MENU

CALIBRAT
DAMPING
TRANSFER FUNCT
SCALED VARIAB
ASSIGN P
TAG
ALARM SAT VALUES

PASSWORD

SIMULATE
HART REV
BACK TO MENU
EXIT MENU

PASSWORD

PASSWORD ENABLE
CHANGE PASSWORD
BACK TO MENU
EXIT MENU

VIEW CONFIG
ZERO TRIM
UNITS
RERANGE
LOOP TEST
DISPLAY

EXTENDED MENU

EXIT MENU

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Configuring LOI password using LOI

Figure 4-3: LOI Password

4.5 Setting transmitter alarm

On the electronics board is an alarm switch, reference Figure 4-2 for switch location.
Follow the steps below to change the alarm switch location:

Procedure

1. Set loop to manual and remove power.

2. Remove transmitter housing cover.

3. Use a small screwdriver to slide switch to desired position.

4. Replace transmitter cover; cover must be fully engaged to comply with explosion

proof requirements.

4.6 Electrical considerations

Note

Make sure all electrical installation is in accordance with national and local code
requirements.

WARNING

Electrical shock

Electrical shock can result in death or serious injury.

Do not run signal wiring in conduit or open trays with power wiring or near heavy electrical
equipment.

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4.6.1 Conduit installation

CAUTION

Transmitter damage

If all connections are not sealed, excess moisture accumulation can damage the
transmitter.

Mount the transmitter with the electrical housing positioned downward for drainage.
To avoid moisture accumulation in the housing, install wiring with a drip loop and

ensure the bottom of the drip loop is mounted lower than the conduit connections of
the transmitter housing.

Figure 4-4 shows recommended conduit connections.

Figure 4-4: Conduit Installation Diagrams

4.6.2

A. Possible conduit line positions

B. Sealing compound

Power supply

The transmitter requires between 9 and 32 Vdc (9 and 30 Vdc for intrinsic safety and 9 and

17.5 Vdc for FISCO intrinsic safety) to operate and provide complete functionality.

4–20 mA HART® (option code S)

Transmitter operates on 10.5–42.4 Vdc at the terminal of the transmitter. The DC power
supply should provide power with less than two percent ripple. A minimum of 16.6 V is
required for loops with a 250 Ω resistance.

Note

A minimum loop resistance of 250 Ω is required to communicate with a Field
Communicator. If a single power supply is used to power more than one Rosemount 2051
Transmitter, the power supply used, and circuitry common to the transmitters, should not
have more that 20 Ω of impedance at 1200 Hz.

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Figure 4-5: Load Limitation

• Maximum loop resistance = 43.5 × (power supply voltage – 10.5)

• The Field Communicator requires a minimum loop resistance of 250 Ω for

communication.

The total resistance load is the sum of the resistance of the signal leads and the load
resistance of the controller, indicator, I.S. Barriers, and related pieces. If intrinsic safety
barriers are used, the resistance and voltage drop must be included.

4.6.3

1–5 Vdc low power HART (output code N)

Low Power transmitters operate on 5.8 Vdc. The dc power supply should provide power
with less than 2 percent ripple. The V

load should be 100 k Ω or greater.

out

Wiring the transmitter

CAUTION

Do not connect the power signal wiring to the test terminals. Incorrect wiring can damage
test circuit.

Note

Use shielded twisted pairs to yield best results. To ensure proper communication, use 24
AWG or larger wire and do not exceed 5000 ft. (1500 m). For 1–5 V 500 ft. (150 m)
maximum are recommended. Unpaired three conductor or two twisted pairs is
recommended.

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Figure 4-6: Wiring the Transmitter (4–20 mA HART)

A. DC power supply

B. R L ≥ 250 (necessary for HART communication only)

Figure 4-7: Wiring the Transmitter (1–5 Vdc Low Power)

A. DC power supply

B. Voltmeter

Perform the following procedure to make wiring connections:

Procedure

1. Remove the housing cover on terminal compartment side. Do not remove the

cover in explosive atmospheres when the circuit is live. Signal wiring supplies all
power to the transmitter.

2. For 4–20 mA HART output, connect the positive lead to the terminal marked (pwr/

comm+) and the negative lead to the terminal marked (pwr/comm–). Do not
connect the powered signal wiring to the test terminals. Power could damage the
test diode.

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a) For 1–5 Vdc HART Output, connect the positive lead to (PWR +) and the

negative to the (PWR–). Do not connect the powered signal wiring to the test
terminals. Power could damage the test diode.

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 ferrule wire terminal is not recommended as the connection may
be more susceptible to loosening over time or under vibration.

4. Plug and seal unused conduit connection on the transmitter housing to avoid

moisture accumulation in the terminal side.

4.6.4

Grounding the transmitter

Signal cable shield grounding

Signal cable shield grounding is summarized in Figure 4-8. The signal cable shield and
unused shield drain wire must be trimmed and insulated, ensuring that the signal cable
shield and drain wire do not come in contact with the transmitter case. See Transmitter

case grounding for instructions on grounding the transmitter case. Follow the steps below

to correctly ground the signal cable shield:

Procedure

1. Remove the field terminals housing cover.

2. Connect the signal wire pair at the field terminals as indicated in Figure 4-8.

3. At the field terminals, the cable shield and shield drain wire should be trimmed

close and insulated from transmitter housing.

4. Reattach the field terminals housing cover; cover must be fully engaged to comply

with explosion proof requirements.

5. At terminations outside the transmitter housing, the cable shield drain wire should

be continuously connected.

a) Prior to the termination point, any exposed shield drain wire should be

insulated as shown in Figure 4-8 (B).

6. Properly terminate the signal cable shield drain wire to an earth ground at or near

the power supply.

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Example

Figure 4-8: Wiring Pair and Ground

A. Minimize distance

B. Trim shield and insulate

C. Protective grounding terminal

D. Insulate shield

E. Connect shield back to the power supply

Transmitter case grounding

Always ground the transmitter case in accordance with national and local electrical codes.
The most effective transmitter case grounding method is a direct connection to earth
ground with minimal impedance. Methods for grounding the transmitter case include:

• Internal ground connection: the internal ground connection screw is inside the FIELD

TERMINALS side of the electronics housing. This screw is identified by a ground symbol

). The ground connection screw is standard on all Rosemount 2088, 2090F, 2090P

(
transmitters. Refer to Figure 4-9.

• External ground connection: The external ground connection is located on the exterior

of the transmitter housing. Refer to Figure 4-9. This connection is only available with
option T1.

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Figure 4-9: Internal Ground Connection

A. Internal ground location

B. External ground location

C. Positive

D. Negative

E. Test

Note

Grounding the transmitter case via threaded conduit connection may not provide
sufficient ground continuity.

Transient protection terminal block grounding

The transmitter can withstand electrical transients of the energy level usually encountered
in static discharges or induced switching transients. However, high-energy transients,
such as those induced in wiring from nearby lightning strikes, can damage the transmitter.

The transient protection terminal block can be ordered as an installed option (Option
Code T1) or as a spare part to retrofit existing Rosemount 2088, 2090F, and 2090P
transmitters in the field. See Specifications and Reference Data for part numbers. The
lightning bolt symbol shown in Figure 4-10 identifies the transient protection terminal
block.

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Figure 4-10: Transient protection terminal block

A. Lightning bolt location

Note

The transient protection terminal block does not provide transient protection unless the
transmitter case is properly grounded. Use the guidelines to ground the transmitter case.
Refer to Figure 4-9.

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5 Operation and Maintenance

5.1 Overview

This section contains information on calibrating Rosemount™ 2088 Pressure Transmitters.

Field Communicator, AMS Device Manager and Local Operator Interface (LOI) instructions
are given to perform configuration functions.

5.2 Safety messages

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

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 installation.

• Before connecting a Field Communicator in an explosive atmosphere, ensure the

instruments in the loop are installed in accordance with intrinsically safe or non­incendive 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.

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.

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.

• Severe changes in the electrical loop may inhibit HART® Communication or the ability

to reach alarm values. Therefore, Rosemount cannot absolutely warrant or guarantee
that the correct Failure alarm level (HIGH or LOW) can be read by the host system at
the time of annunciation.

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5.3 Recommended calibration tasks

CAUTION

Absolute pressure transmitters are calibrated at the factory. Trimming adjusts the position
of the factory characterization curve. It is possible to degrade performance of the
transmitter if any trim is done improperly or with inaccurate equipment.

5.3.1 Field installation tasks

Procedure

1. Perform sensor zero/lower trim: Compensate for mounting pressure effects

a) Refer to Rosemount 306 Manifold for manifold operation instructions to

properly either drain or vent valves.

2. Set/check basic configuration parameters.

a) Output units

b) Range points

c) Output type

d) Damping value

5.3.2

Bench calibration tasks

Procedure

1. Perform optional 4–20 mA 1–5 Vdc output trim.

2. Perform a sensor trim.

a) Zero/lower trim Troubleshooting tables using line pressure effect correction.

Refer to for manifold drain/vent valve operation instructions.

b) Optional full scale trim. Sets the span of the device and requires accurate

calibration equipment.

c) Set/check basic configuration parameters.

5.4 Calibration overview

The pressure transmitter is an accurate instrument that is fully calibrated in the factory.
Field calibration is provided to the user to meet plant requirements or industry standards.
Complete calibration of the transmitter can be split into two tasks:

1. Sensor calibration

2. Analog output calibration

Sensor calibration allows the user to adjust the pressure (digital value) reported by the
transmitter to be equal to a pressure standard. The sensor calibration can adjust the

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pressure offset to correct for mounting conditions or line pressure effects. This correction
is recommended. The calibration of the pressure range (pressure span or gain correction)
requires accurate pressure standards (sources) to provide a full calibration.

Like the Sensor calibration, the analog output can be calibrated to match the user
measurement system. The Analog Output Trim (4–20 mA/ 1–5 V output trim) will
calibrate the loop at the 4 mA (1 V) and 20 mA (5 V) points.

The Sensor calibration and the analog output calibration combine to match the
transmitter’s measurement system to the plant standard.

5.4.1 Calibrate the sensor

• Sensor trim: (Perform a sensor trim )

• Zero trim: (Performing a digital zero trim (option DZ))

5.4.2

5.4.3

Calibrate the 4–20 mA output

• 4–20 mA/1–5V Output trim (Performing digital-to-analog trim (4–20 mA/1–5 V

output trim))

• 4–20 mA/1–5V Output trim using other scale (Performing digital-to-analog trim (4–20

mA/1–5 V output trim) using other scale)

Determining necessary sensor trims

Bench calibrations allow for calibrating the instrument for its desired range of operation.
Straight forward connections to pressure source allow for a full calibration at the planned
operating points. Exercising the Transmitter over the desired pressure range allows for
verification of the analog output. Trim the pressure signal discusses how the trim
operations change the calibration. It is possible to degrade the performance of the
transmitter if a trim is done improperly or with inaccurate equipment. The transmitter can
be set back to factory settings using the Recall factory trim—sensor trim.

For transmitters that are field installed, the manifolds discussed in Rosemount 305, 306,
and 304 Manifolds allow the differential transmitter to be zeroed using the zero trim
function. Both 3-valve and 5-valve manifolds are discussed. This field calibration will
eliminate any pressure offsets caused by mounting effects (head effect of the oil fill) and
static pressure effects of the process.

Determine the necessary trims with the following steps.

Procedure

1. Apply pressure.

2. Check digital pressure, if the digital pressure does not match the applied pressure,

perform a digital trim. See Perform a sensor trim .

3. Check reported analog output against the live analog output. If they do not match,

perform an analog output trim. See Performing digital-to-analog trim (4–20 mA/1–

5 V output trim).

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5.4.4 Trimming with configuration buttons

Local configuration buttons are external buttons located underneath the top tag of the
transmitter. There are two possible sets of local configuration buttons that can be ordered
with the transmitter and used to perform trim operations: Digital zero trim and LOI. To
access the buttons, loosen screw and rotate top tag until buttons are visible.

• LOI (M4): Can perform both digital Sensor Trim and the 4–20 mA Output Trim (analog

output trim). Follow the same procedures listed in trimming with Field Communicator
or AMS Device Manager listed below.

• Digital zero trim (DZ): Used for performing a sensor zero trim. See Determining

calibration frequency for trim instructions.

All configuration changes should be monitored by a display or by measuring the loop
output. Figure 5-1 shows the physical differences between the two sets of buttons.

Figure 5-1: Local Configuration Button Options

A. LOI - greeb retainer

B. Digital zero trim - blue retainer

5.5 Determining calibration frequency

Calibration frequency can vary greatly depending on the application, performance
requirements, and process conditions. Use the following procedure to determine
calibration frequency that meets the needs of your application.

Procedure

1. Determine the performance required for your application.

2. Determine the operating conditions.

3. Calculate the Total Probable Error (TPE).

4. Calculate the stability per month.

5. Calculate the calibration frequency.

5.5.1

Sample calculation for Rosemount 2088

Procedure

1. Determine the performance required for your application.

Required Performance: 0.50% of span

68 Rosemount 2088, 2090P, and 2090F Pressure Transmitter Reference Manual

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2. Determine the operating conditions.

Transmitter: Rosemount 2088G, Range 1 [URL = 30 psi (2,1 bar)]

Calibrated Span: 30 psi (2,1 bar)

Ambient Temperature Change: ± 50 °F (28 °C)

3. Calculate total probable error (TPE).

TPE = = 0.309% of
span

Where:

Reference Accuracy = ± 0.075% of span

Ambient Temperature Effect = ± (0.15% URL + 0.15% of span) per 50 °F = ± 0.3% of
span

Static Pressure Effect = 0% (does not apply to in-line products)

4. Calculate the stability per month.

5. Calculate calibration frequency.

5.6 Trim the pressure signal

5.6.1 Sensor trim overview

A sensor trim corrects the pressure offset and pressure range to match a pressure
standard. The upper sensor trim corrects the pressure range and the lower sensor trim
(Zero Trim) corrects the pressure offset. An accurate pressure standard is required for full
calibration. A zero trim can be performed if the process is vented, or the high and low side
pressure are equal (for differential pressure transmitters).

Zero trim is a single-point offset adjustment. It is useful for compensating for mounting
position effects and is most effective when performed with the transmitter installed in its
final mounting position. Since this correction maintains the slope of the characterization
curve, it should not be used in place of a sensor trim over the full sensor range.

When performing a zero trim, ensure the equalizing valve is open and all wet legs are filled
to the correct levels. Line pressure should be applied to the transmitter during a zero trim
to eliminate line pressure errors.

Note

Do not perform a zero trim on Rosemount 2051T Absolute Pressure Transmitters. Zero
trim is zero based, and absolute pressure transmitters reference absolute zero. To correct

Reference Manual 69

Operation and Maintenance Reference Manual

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mounting position effects on an absolute pressure transmitter, perform a low trim within
the sensor trim function. The low trim function provides an offset correction similar to the
zero trim function, but it does not require zero-based input.

Upper and lower sensor trim is a two-point sensor calibration where two end-point
pressures are applied, all output is linearized between them, and requires an accurate
pressure source. Always adjust the low trim value first to establish the correct offset.
Adjustment of the high trim value provides a slope correction to the characterization curve
based on the low trim value. The trim values help optimize performance over a specific
measurement range.

Figure 5-2: Sensor Trim Example

5.6.2

A. Before Trim

B. After Trim

Perform a sensor trim

When performing a Sensor Trim, both the upper and lower limits can be trimmed. If both
upper and lower trims are to be performed, the lower trim must be done prior to the upper
time.

Note

Use a pressure input source that is at least four times more accurate than the transmitter,
and allow the input pressure to stabilize for 10 seconds before entering any values.

Performing a sensor trim with a Field Communicator

From the HOME screen, enter the Fast Key sequence and follow the steps within the Field
Communicator to complete the sensor trim.

Device Dashboard Fast Keys

To calibrate the sensor with a Field Communicator using the sensor trim function, perform
the following procedure:

Procedure

3, 4, 1

1. Select 2: Lower Sensor Trim.

70 Rosemount 2088, 2090P, and 2090F Pressure Transmitter Reference Manual

EXTENDED MENU

CALIBRAT

DAMPING
TRANSFER FUNCT
SCALED VARIAB
ASSIGN PV
TAG
ALARM SAT VALUES
PASSWORD
SIMULATE
HART REV
BACK TO MENU
EXIT MENU

VIEW CONFIG
ZERO TRIM
UNITS
RERANGE
LOOP TEST
DISPLAY

EXTENDED MENU

EXIT MENU

CALIBRAT

ZERO TRIM

LOWER TRIM
UPPER TRIM

ANALOG TRIM
FACTORY RECALL
BACK TO MENU
EXIT MENU

Reference Manual Operation and Maintenance

00809-0100-4108 April 2021

Note

Select pressure points so that lower and upper values are equal to or outside the
expected process operation range. This can be done by going to Rerange the

transmitter.

2. Follow the commands provided by the Field Communicator to complete the

adjustment of the lower value.

3. Select 3: Upper Sensor Trim.

4. Follow the commands provided by the Field Communicator to complete the

adjustment of the upper value.

Performing a sensor trim with AMS Device Manager

Right click the device and, under the Method drop down menu, move cursor over Calibrate
and, under Sensor Trim, select Lower Sensor Trim.

Procedure

1. Follow the screen prompts to perform a sensor trim using AMS Device Manager.

2. If desired, right select the device and under the Method drop down menu, move

cursor over Calibrate and under Sensor Trim and select Upper Sensor Trim.

Performing a sensor trim using LOI

Perform an upper and lower sensor trim by referencing Figure 5-3.

Figure 5-3: Sensor trim with LOI

Performing a digital zero trim (option DZ)

A digital zero trim (option DZ) provides the same function as a zero/lower sensor trim, but
can be completed in hazardous areas at any given time by simply pushing the zero trim
button when the transmitter is at zero pressure. If the transmitter is not close enough to
zero when the button is pushed, the command may fail due to excess correction. If
ordered, a Digital Zero Trim can be performed by utilizing external configuration buttons
located underneath the top tag of the transmitter, see Figure 5-1 for DZ button location.

Procedure

Reference Manual 71

1. Loosen the top tag of the transmitter to expose buttons.

2. Press and hold the digital zero button for at least two seconds, then release to

perform a digital zero Trim.

EXTENDED MENU

CALIBRAT

DAMPING
TRANSFER FUNCT
SCALED VARIAB
ASSIGN PV
TAG
ALARM SAT VALUES
PASSWORD
SIMULATE
HART REV
BACK TO MENU
EXIT MENU

VIEW CONFIG
ZERO TRIM
UNITS
RERANGE
LOOP TEST
DISPLAY

EXTENDED MENU

EXIT MENU

CALIBRAT

ZERO TRIM
LOWER TRIM
UPPER TRIM
ANALOG TRIM

FACTORY RECALL

BACK TO MENU
EXIT MENU

FACTORY RECALL

SENSOR RECALL

ANALOG RECALL
BACK TO MENU
EXIT MENU

Operation and Maintenance Reference Manual

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5.6.3 Recall factory trim—sensor trim

The recall factory trim-sensor trim command allows the restoration of the as-shipped
factory settings of the Sensor Trim. This command can be useful for recovering from an
inadvertent zero trim of an absolute pressure unit or inaccurate pressure source.

Recalling factory trim with a Field Communicator

From the HOME screen, enter the Fast Key sequence and follow the steps within the Field
Communicator to complete the sensor trim.

Device Dashboard Fast Keys 3, 4, 3

Recalling factory trim with AMS Device Manager

Procedure

1. Right select on the device and, under the Method drop down menu, move cursor

over Calibrate and select Restore Factory Calibration.

2. Set the control loop to manual.

3. Select Next.

4. Select Sensor Trim under Trim to recall and click Next.

5. Follow the screen prompts to recall Sensor Trim.

Recalling factory trim with LOI

Refer to Figure 5-4 to recall factory sensor trim.

Figure 5-4: Recall Factory Trim with LOI

5.7 Trim the analog output

The Analog Output Trim commands allow you to adjust the transmitter’s current output
at the 4 and 20 mA (1 – 5 Vdc) points to match the plant standards. This trim is performed
after the digital to analog conversion so only the 4–20 mA analog (1– 5 Vdc) signal will be
affected. Figure 5-5 graphically shows the two ways the characterization curve is affected
when an analog output trim is performed.

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Figure 5-5: Analog Output Trim Example

A. Before trim

B. After Trim

5.7.1

Performing digital-to-analog trim (4–20 mA/1–5 V output trim)

Note

If a resistor is added to the loop, ensure that the power supply is sufficient to power the
transmitter to a 20 mA output with additional loop resistance. Refer to Power supply.

Performing a 4–20 mA/1–5 V output trim with a Field Communicator

From the HOME screen, enter the Fast Key sequence and follow the steps within the Field
Communicator to complete the 4–20 mA output trim.

Device Dashboard Fast Keys

Performing a 4–20 mA/1–5 V output trim with AMS Device Manager

Right select the device and, under the Method drop down menu, move cursor over
Calibrate and select Analog Calibration.

Procedure

1. Select Digital to Analog Trim.

2. Follow the screen prompts to perform a 4–20 mA output trim.

3, 4, 2, 1

Reference Manual 73

EXTENDED MENU

CALIBRAT

DAMPING
TRANSFER FUNCT
SCALED VARIAB
ASSIGN PV
TAG
ALARM SAT VALUES
PASSWORD
SIMULATE
HART REV
BACK TO MENU
EXIT MENU

VIEW CONFIG
ZERO TRIM
UNITS
RERANGE
LOOP TEST
DISPLAY

EXTENDED MENU

EXIT MENU

CALIBRAT

ZERO TRIM
LOWER TRIM
UPPER TRIM

ANALOG TRIM

FACTORY RECALL
BACK TO MENU
EXIT MENU

Operation and Maintenance Reference Manual

April 2021 00809-0100-4108

Performing 4–20 mA/1–5 V output trim using LOI

Figure 5-6: 4–20 mA output trim using LOI

5.7.2 Performing digital-to-analog trim (4–20 mA/1–5 V output trim) using other scale

The scaled 4–20 mA output Trim command matches the 4 and 20 mA points to a user
selectable reference scale other than 4 and 20 mA [for example, 2 to 10 volts if measuring
across a 500 Ω load, or 0 to 100 percent if measuring from a Distributed Control System
(DCS)]. To perform a scaled 4–20 mA output trim, connect an accurate reference meter to
the transmitter and trim the output signal to scale, as outlined in the output trim
procedure.

Performing a 4–20/1–5 V mA output trim using other scale with a Field Communicator

From the HOME screen, enter the Fast Key sequence and follow the steps within the Field
Communicator to complete the 4–20 mA output trim using other scale.

Device Dashboard Fast Keys

3, 4, 2, 2

Performing a 4–20 mA/ 1–5 V output trim using other scale with AMS Device Manager

Procedure

1. Right select the device and under the Method drop down menu, move cursor over
Calibrate and select Analog Calibration.

2. Select Scaled Digital to Analog Trim.

3. Follow screen prompts to perform a 4–20 mA/ 1–5 V Output Trim.

74 Rosemount 2088, 2090P, and 2090F Pressure Transmitter Reference Manual

EXTENDED MENU

CALIBRAT

DAMPING
TRANSFER FUNCT
SCALED VARIAB
ASSIGN PV
TAG
ALARM SAT VALUES
PASSWORD
SIMULATE
HART REV
BACK TO MENU
EXIT MENU

VIEW CONFIG
ZERO TRIM
UNITS
RERANGE
LOOP TEST
DISPLAY

EXTENDED MENU

EXIT MENU

CALIBRAT

ZERO TRIM
LOWER TRIM
UPPER TRIM
ANALOG TRIM

FACTORY RECALL

BACK TO MENU
EXIT MENU

FACTORY RECALL

SENSOR RECALL

ANALOG RECALL

BACK TO MENU
EXIT MENU

Reference Manual Operation and Maintenance

00809-0100-4108 April 2021

5.7.3 Recalling factory trim—analog output

The Recall Factory Trim—Analog Output command allows the restoration of the as­shipped factory settings of the analog output trim. This command can be useful for
recovering from an inadvertent trim, incorrect Plant Standard or faulty meter.

Recalling factory trim - analog output with a Field Communicator

From the HOME screen, enter the Fast Key sequence and follow the steps within the Field
Communicator to complete the digital to analog trim using other scale.

Device Dashboard Fast Keys 3, 4, 3

Recalling factory trim - analog output with AMS Device Manager

Procedure

1. Right select the device and, under the Method drop down menu, move cursor over
Calibrate and select Restore Factory Calibration.

2. Select Next to set the control loop to manual.

3. Select Analog Output Trim under Select trim to recall and click Next.

4. Follow screen prompts to recall analog output trim.

Recalling factory trim - analog output with LOI

Reference Figure 5-7 for LOI instructions.

Figure 5-7: Recall factory Trim – Analog Output with LOI

5.8 Switching HART revision

Some systems are not capable of communicating with HART® Revision 7 devices. The
following procedures list how to change HART revisions between HART Revision 7 and
HART Revision 5.

Reference Manual 75

EXTENDED MENU

CALIBRAT
DAMPING
TRANSFER FUNCT
SCALED VARIAB
ASSIGN PV
TAG
ALARM SAT VALUES
PASSWORD
SIMULATE

HART REV

BACK TO MENU
EXIT MENU

VIEW CONFIG
ZERO TRIM
UNITS
RERANGE
LOOP TEST
DISPLAY

EXTENDED MENU

EXIT MENU

Operation and Maintenance Reference Manual

April 2021 00809-0100-4108

5.8.1 Switching HART revision with generic menu

If the HART® configuration tool is not capable of communicating with a HART Revision 7
device, it should load a generic menu with limited capability. The following procedures
allow for switching between HART Revision 7 and HART Revision 5 from a generic menu.

Procedure

1. Locate “Message” field.

2. To change to HART Revision 5, Enter: HART5 in the message field.

3. To change to HART Revision 7, Enter: HART7 in the message field.

5.8.2 Switching HART revision with Field Communicator

From the HOME screen, enter the Fast Key sequence and follow steps within the Field
Communicator to complete the HART® revision change.

From the HOME screen, enter the Fast Key
sequence

Device Dashboard Fast Keys 2, 2, 5, 2, 4 2, 2, 5, 2, 3

HART5 HART7

5.8.3 Switching HART revision with AMS Device Manager

Procedure

1. Select Manual Setup and select HART.

2. Select Change HART Revision, then follow the on screen prompts.

Note

AMS Device Manager versions 10.5 or greater are compatible with HART Revision 7.

5.8.4

Switching HART revision with LOI

Navigate to HART® REV within the extended menu and select either HART REV 5 or HART
REV 7. Use Figure 5-8 below to change HART Revision:

Figure 5-8: Change HART Revision with LOI

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6 Troubleshooting

6.1 Overview

Table 6-1 and Table 6-2 provide summarized maintenance and troubleshooting

suggestions for the most common operating problems.

If you suspect malfunction despite the absence of any diagnostic messages on the Field
Communicator display, consider using Diagnostic messages to identify any potential
problem.

6.2 Safety messages

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

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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 installation.

• Before connecting a Field Communicator in an explosive atmosphere, ensure the

instruments in the loop are installed in accordance with intrinsically safe or non­incendive 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.

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.

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.

• Severe changes in the electrical loop may inhibit HART® Communication or the ability

to reach alarm values. Therefore, Rosemount cannot absolutely warrant or guarantee
that the correct Failure alarm level (HIGH or LOW) can be read by the host system at
the time of annunciation.

6.3 Troubleshooting tables

Table 6-1: Rosemount troubleshooting table for 4–20 mA output

Symptom Corrective actions

Transmitter milliamp reading is
zero

Verify terminal voltage is 10.5 to 42.4 Vdc at signal terminals

Check power wires for reversed polarity

Check that power wires are connected to signal terminals

Check for open diode across test terminal

Transmitter not communicating
with Field Communicator

78 Rosemount 2088, 2090P, and 2090F Pressure Transmitter Reference Manual

Verify terminal voltage is 10.5 to 42.4 Vdc

Check loop resistance, 250 Ω minimum (PS voltage ­transmitter voltage/loop current)

Reference Manual Troubleshooting

00809-0100-4108 April 2021

Table 6-1: Rosemount troubleshooting table for 4–20 mA output (continued)

Symptom Corrective actions

Check that power wires are connected to signal terminals
and not test terminals

Verify clean DC Power to transmitter (Max AC noise 0.2 volts
peak to peak)

Verify the output is between 4 and 20 mA or saturation levels

Have Field Communicator poll for all addresses

Transmitter milliamps reading is
low or high

Transmitter will not respond to
changes in applied pressure

Digital pressure variable reading is
low or high

Digital pressure variable reading is
erratic

Verify applied pressure

Verify 4 and 20 mA range points

Verify output is not in alarm condition

Perform analog trim

Check that power wires are connected to the correct signal
terminals (positive to positive, negative to negative) and not
the test terminal

Check impulse piping or manifold for blockage

Verify applied pressure is between the 4 and 20 mA points

Verify the output is not in alarm condition

Verify transmitter is not in loop test mode

Verify transmitter is not in multidrop mode

Check test equipment

Check impulse piping for blockage or low fill in wet leg

Verify transmitter is calibrated properly

Check test equipment (verify accuracy)

Verify pressure calculations for application

Check application for faulty equipment in pressure line

Verify transmitter is not reacting directly to equipment
turning on/off

Verify damping is set properly for application

Milliamps reading is erratic Verify power source to transmitter has adequate voltage and

current

Check for external electrical interference

Verify transmitter is properly grounded

Verify shield for twisted pair is only grounded at one end

Table 6-2: Rosemount troubleshooting for 1–5 Vdc output

Symptom Corrective actions

Transmitter voltage reading is zero Verify terminal voltage is 5.8 to 28.0 Vdc at signal terminals

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Troubleshooting Reference Manual

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Table 6-2: Rosemount troubleshooting for 1–5 Vdc output (continued)

Symptom Corrective actions

Check power wires for reversed polarity

Check that power wires are connected to signal terminals

Check for open diode across test terminal

Transmitter not communicating
with Field Communicator

Transmitter voltage reading is low
or high

Transmitter will not respond to
changes in applied pressure

Verify terminal voltage is 5.8 to 28.0 Vdc

Check loop resistance, 250 Ω minimum (PS voltage ­transmitter voltage/loop current)

Check that power wires are connected to signal terminals
and not test terminals

Verify clean DC Power to transmitter (Max AC noise 0.2 volts
peak to peak)

Verify the output is between 1–5 Vdc or saturation levels

Have Field Communicator poll for all addresses

Verify applied pressure

Verify 1–5 Vdc range points

Verify output is not in alarm condition

Perform analog trim

Check that power wires are connected to the correct signal
terminals (positive to positive, negative to negative) and not
the test terminal

Check impulse piping or manifold for blockage

Verify applied pressure is between the 1–5 Vdc points

Verify the output is not in alarm condition

Verify transmitter is not in loop test mode

Verify transmitter is not in multidrop mode

Check test equipment

Digital pressure variable reading is
low or high

Digital pressure variable reading is
erratic

Voltage reading is erratic Verify power source to transmitter has adequate voltage and

80 Rosemount 2088, 2090P, and 2090F Pressure Transmitter Reference Manual

Check impulse piping for blockage or low fill in wet leg

Verify transmitter is calibrated properly

Check test equipment (verify accuracy)

Verify pressure calculations for application

Check application for faulty equipment in pressure line

Verify transmitter is not reacting directly to equipment
turning on/off

Verify damping is set properly for application

current

Check for external electrical interference

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Table 6-2: Rosemount troubleshooting for 1–5 Vdc output (continued)

Symptom Corrective actions

Verify transmitter is properly grounded

Verify shield for twisted pair is only grounded at one end

6.4 Diagnostic messages

Listed in the below sections are detailed table of the possible messages that will appear on
either the LCD/LOI display, a Field Communicator, or an AMS Device Manager system. Use
the tables below to diagnose particular status messages.

• Good

• Failed – fix now

• Maintenance – fix soon

• Advisory

Table 6-3: Status: Failed – Fix Now

Alert name LCD display

screen

No Pressure
Updates

Electronics
Board Failure

Critical Sensor
Data Error

Critical
Electronics
Data Error

Sensor Failure FAIL SENSOR FAIL

NO P
UPDATE

FAIL
BOARD

MEMRY
ERROR

LOI screen Problem Recommended action

NO PRESS
UPDATE

FAIL
BOARD

MEMORY
ERROR

SENSOR

There are no pressure updates
from the sensor to the
electronics

A failure has been detected in
the electronics circuit board

A user written parameter does
not match the expected value

A user written parameter does
not match the expected value

A failure has been detected in
the pressure sensor

1. Ensure the sensor cable
connection to the electronics is
tight.

2. Replace the transmitter.

• Replace the pressure transmitter.

1. Confirm and correct all
parameters listed in Device
Information.

2. Perform a Device Reset.

3. Replace Pressure Transmitter.

1. Confirm and correct all
parameters listed in Device
Information.

2. Perform a Device Reset.

3. Replace pressure transmitter.

• Replace pressure transmitter.

Incompatible
Electronics and
Sensor

Reference Manual 81

XMTR
MSMTCH

XMTR
MSMTCH

The pressure sensor is
incompatible with the
attached electronics

• Replace the pressure transmitter.

Troubleshooting Reference Manual

April 2021 00809-0100-4108

Table 6-4: Status: Maintenance – Fix Soon

Alert name LCD display

screen

No
Temperature
Updates

Pressure Out of
Limits

Sensor
Temperature
Beyond Limits

Electronics
Temperature
Beyond Limits

Electronics
Board
Parameter Error

NO T
UPDATE

PRES
LIMITS

TEMP
LIMITS

MEMRY
WARN (also
in advisory)

LOI screen Problem Recommended action

NO TEMP
UPDATE

PRES OUT
LIMITS

TEMP OUT
LIMITS

MEMORY
WARN (also
in advisory)

There are no temperature
updates from the sensor to
the electronics

The pressure is either above or
below the sensor limits

The sensor temperature has
exceeded its safe operating
range

The temperature of the
electronics has exceeded its
safe operating range.

A device parameter does not
match the expected value. The
error does not affect
transmitter operation or
analog output.

1. Ensure the sensor cable connection
to the electronics is tight.

2. Replace the pressure transmitter.

1. Check the transmitter pressure
connection to ensure it is not
plugged or the isolating
diaphragms are not damaged.

2. Replace the pressure transmitter.

1. Check the process and ambient
conditions are within –85 to 194 °F
(–65 to 90 °C).

2. Replace the pressure transmitter.

1. Confirm electronics temperature is
within limits of –85 to 194 °F (–65
to 90 °C).

2. Replace the pressure transmitter.

• Replace the pressure transmitter.

Configuration
Buttons
Operator Error

STUCK
BUTTON

Table 6-5: Status: Advisory

Alert name LCD

display
screen

Non-Critical
User Data
Warning

Sensor
Parameter
Warning

MEMRY
WARN

STUCK
BUTTON

LOI screen Problem Recommended action

MEMORY
WARN

Device is not responding to
button presses.

A user written parameter
does not match expected
value.

A user written parameter
does not match expected
value.

1. Check configuration buttons are
not stuck.

2. Replace the pressure transmitter.

1. Confirm and correct all parameters listed
in Device Information.

2. Perform a Device Reset.

3. Replace the pressure transmitter.

1. Confirm and correct all parameters listed
in Device Information.

2. Perform a Device Reset.

3. Replace pressure transmitter.

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Table 6-5: Status: Advisory (continued)

Alert name LCD

display
screen

LCD Display
Update
Failure

Configuratio
n Changed

Analog
Output Fixed

[If display
is not
updating]

[none]

ANLOG
FIXED

LOI screen Problem Recommended action

[If display is
not
updating]

[none]

ANALOG
FIXED

The LCD display is not
receiving updates from the
pressure sensor.

A recent change has been
made the device by a
secondary HART® master
such as a handheld device.

The analog output is fixed
and does not represent the
process measurement. This
may be caused by other
conditions in the device, or
because the device has
been set to loop test or
multidrop mode.

1. Check the connection between the LCD
display and the circuit board.

2. Replace the LCD display.

3. Replace the pressure transmitter.

1. Verify that the configuration change of the
device was intended and expected.

2. Clear this alert by selecting Clear
Configuration Changed Status.

3. Connect a HART master such as AMS
Device Manager or similar which will
automatically clear it.

1. Take action on any other notifications
from the device.

2. If the device is in loop test, and should no
longer be, disable or momentarily remove
power.

3. If the device is in multidrop mode and
should not be, re-enable loop current by
setting the polling address to 0.

Simulation
Active

Analog
Output
Saturated

[none] [none] The device is in simulation

mode and may not be
reporting actual
information.

ANLOG
SAT

ANALOG
SAT

The analog output is
saturated either high or low
due to the pressure either
above or below the range
values.

6.5 Disassembly procedures

Do not remove the instrument cover in explosive atmospheres when the circuit is live.

6.5.1

Removing from service

Follow these steps:

1. Verify that simulation is no longer
required.

2. Disable simulation mode in service tools.

3. Perform a Device Reset.

1. Check the pressure applied to ensure it is
between the 4–20mA points.

2. Check the transmitter pressure
connection to make sure it is not plugged
or isolating diaphragms are not damaged.

3. Replace the pressure transmitter.

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Procedure

1. Follow all plant safety rules and procedures.

2. Power down device.

3. Isolate and vent the process from the transmitter before removing the transmitter
from service.

4. Remove all electrical leads and disconnect conduit.

5. Remove the transmitter from the process connection.

a) The Rosemount 2088 Transmitter is attached to the process connection by

four bolts and two cap screws. Remove the bolts and screws and separate the
transmitter from the process connection. Leave the process connection in
place and ready for re-installation.

b) The Rosemount 2088 Transmitter is attached to the process by a single hex

nut process connection. Loosen the hex nut to separate the transmitter from
the process. Do not wrench on neck of transmitter.

Note

Do not wrench on neck of transmitter.

6.5.2

6.5.3

6. Do not scratch, puncture, or depress the isolating diaphragms.

7. Clean isolating diaphragms with a soft rag and a mild cleaning solution, and rinse
with clear water.

Removing terminal block

Electrical connections are located on the terminal block in the compartment labeled
“FIELD TERMINALS.”

Procedure

1. Remove the housing cover from the field terminal side.

2. Loosen the two small screws located on the assembly in the 9 o’clock and 5 o’clock
positions relative to the top of the transmitter.

3. Pull the entire terminal block out to remove it.

Removing the LOI or LCD display

Rosemount 2088 with M4 or M5 option codes have and LOI or LCD display. The
transmitter LOI/LCD display are located in the compartment opposite the terminal side. To
remove and/or replace the LOI/LCD display, perform the following procedures:

Procedure

1. Remove the housing cover opposite the field terminal side.

2. Loosen the two captive screws that are visible (See Configuring transmitter security
for screw locations). The two screws anchor the LOI/LCD display to the electronics
board and the electronics board to the housing.

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CAUTION

See Safety messages for the complete warning.

3. After the screws are loosened, pull the LOI/LCD display off of the electronics board
and out of the housing. Make sure to pull directly backwards so to not bend or
damage the connection pins on the electronics board.

Note

Do not attempt to pull out the electronics board from the housing as this could
permanently damage the transmitter.

6.6 Reassembly procedures

Procedure

1. Inspect all cover and housing (non-process wetted) O-rings and replace if necessary.
Lightly grease with silicone lubricant to ensure a good seal.

2. Carefully tuck the cable connector completely inside the internal black cap. To do
so, turn the black cap and cable counterclockwise one rotation to tighten the cable.

3. Lower the electronics housing onto the module. Guide the internal black cap and
cable on the sensor module through the housing and into the external black cap.

4. Turn the module clockwise into the housing.

6.6.1

Important

Make sure the sensor ribbon cable and internal black cap remain completely free of
the housing as you rotate it. Damage can occur to the cable if the internal black cap
and ribbon cable become hung up and rotate with the housing.

5. Thread the housing completely onto the sensor module. The housing must be no
more than one full turn from flush with the sensor module to comply with explosion
proof requirements.

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

Installing LOI/LCD Display

Procedure

1. While aligning the captive screws with the respective holes on the electronics
board, connect the LCD/LOI display to the electronics board by pressing down
firmly.

2. Ensure that the connecting pins on the back of the LCD fully connect to the front of
the electronics board.

3. Fully tighten down the captive screws

4. Replace the housing cover. The transmitter must be fully engaged to meet
Explosion-Proof requirementsInstalling terminal block.

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6.7 Service support

Within the United States, call the Emerson™ Instrument and Valve Response Center using
the 1-800-654-RSMT (7768) toll-free number. This center, available 24 hours a day, will
assist you with any needed information or materials.

The center will ask for product model and serial numbers, and will provide a Return
Material Authorization (RMA) number. The center will also ask for the process material to
which the product was last exposed.

For inquiries outside of the United States, contact the nearest Emerson representative for
RMA instructions.

To expedite the return process outside of the United States, contact the nearest Emerson
representative.

CAUTION

Individuals who handle products exposed to a hazardous substance can avoid injury if they
are informed of and understand the hazard. The product being returned will require a copy
of the required Safety Data Sheet (SDS) for each substance must be included with the
returned goods.

Emerson Instrument and Valve Response Center representatives will explain the additional
information and procedures necessary to return goods exposed to hazardous substances.

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A Specifications and Reference Data

A.1 Rosemount™ 2088 Product Certifications

To view current Rosemount 2088 Product Certifications, follow these steps:

Procedure

1. Go to Emerson.com/Rosemount/2088.

2. Scroll as needed to the green menu bar and click Documents & Drawings.

3. Click Manuals & Guides.

4. Select the appropriate Quick Start Guide.

A.2 Rosemount 2090P Product Certifications

To view current Rosemount 2090P Product Certifications, follow these steps:

Procedure

1. Go to Emerson.com/Rosemount/2090P.

2. Scroll as needed to the green menu bar and click Documents & Drawings.

3. Click Manuals & Guides.

4. Select the appropriate Quick Start Guide.

A.3 Rosemount 2090F Product Certifications

To view current Rosemount 2090F Product Certifications, follow these steps:

Procedure

1. Go to Emerson.com/Rosemount/2090F.

2. Scroll as needed to the green menu bar and click Documents & Drawings.

3. Click Manuals & Guides.

4. Select the appropriate Quick Start Guide.

A.4 Ordering Information, Specifications, and

Drawings

To view current Rosemount 2088, 2088P, and 2088F Product Certifications, follow these
steps:

Procedure

1. Go to:

• Emerson.com/Rosemount/2088

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Specifications and Reference Data Reference Manual

April 2021 00809-0100-4108

• Emerson.com/Rosemount/2090P

• Emerson.com/Rosemount/2090F

2. Scroll as needed to the green menu bar and click Documents & Drawings.

3. For installation drawings, click Drawings & Schematics and select the appropriate
document.

4. For ordering information, specifications, and dimensional drawings, click Data
Sheets & Bulletins and select the appropriate Product Data Sheet.

88 Rosemount 2088, 2090P, and 2090F Pressure Transmitter Reference Manual

Home

1 Overview
2 Configure
3 Service Tools

Overview

1 Device Status
2 Comm Status
3 PV
4 Analog Output
5 Upper Range Value
6 Lower Range Value
7 Device Information

1 Model Number 1
2 Model Number 2
3 Model Number 3

Flange Info

1 Process Connection
2 Process Connection Material
3 O-ring Material
4 Drain/Vent Material

Comm Status: Polled

1 Communication Change

HART Lock

1 Device Lock

LOI Password Protection

1 Password Protection

Remote Seal Info

1 Num of Remote Seals
2 Seal Type
3 Fill Fluid
4 Diaphragm Material

Alarm Levels

1 Alarm Direction
2 High Alarm
3 High Saturation
4 Low Saturation
5 Low Alarm

Active Alerts

1 Refresh Alerts
2 Active Alert 1
3 Active Alert 2
4 Etc

Sensor Module Info

1 Serial Number
2 Measurement Type
3 Configuration
4 Sensor Range
5 PV Upper Limit
6 PV Lower Limit
7 Isolator material
8 Fill Fluid

Identification

1 Tag
2 Long Tag
3 Model
4 Serial Number
5 Date
6 Description
7 Message
8 Model Numbers
9 Manufacturer

Security

1 Security Switch Status
2 External Buttons
3 Configuration Buttons
4 HART Lock
5 LOI Password Protection

Device Information

1 Identification
2 Revision Numbers
3 Sensor Module Info
4 Flange Info
5 Remote Seal Info
6 Alarm Levels
7 Security

Revision Numbers

1 Universal Revision
2 Field Device
3 Software
4 Hardware
5 Device Driver Revision

Reference Manual Field Communicator Menu Trees and Fast Keys

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B Field Communicator Menu Trees and

Fast Keys

B.1 Field Communicator menu trees

Figure B-1: Overview

Reference Manual 89

Home

1 Overview
2 Configure
3 Service Tools

Configure

1 Guided Setup
2 Manual Setup
3 Alert Setup

Scaled Variable

1 SV Data Points
2 SV Units
3 SV Transfer Function
4 SV Linear Offset
5 SV Cutoff mode
6 SV Low Cutoff
7 Scaled Variable

Configure Burst Mode

1 Burst Message 1
2 Message 1 Content
3 Message 1 Variables

Basic Setup

1 Device Tagging
2 Units of Measure/Damping
3 Variable Mapping
4 Analog Output
5 Alarm/Saturation Values

Device Tagging

1 Tag
2 Long Tag
3 Description
4 Message
5 Date

Guided Setup

1 Basic Setup
2 Zero Trim
3 Configure Display
4 Scaled Variable
5 Configure Burst Mode

Configure Display

1 Pressure
2 Scaled Variable
3 Sensor Temperature
4 Percent of Range
5 Analog Output
6 Review Parameters at Start-up

Variable Mapping

1 Primary Variable
2 Second Variable
3 Third Variable
4 Fourth Variable

Analog Output

1 Primary Variable
2 Upper Range Value
3 Lower Range Value

Message 1 Variables

1 First and Trigger Variable
2 Second Variable
3 Third Variable
4 Fourth Variable

Units of Measure/Damping

1 Units of Measure
2 Damping

Units of Measure

1 Pressure
2 Sensor Temp Units

Alarm/Saturation Values

1 Alarm Direction
2 High Alarm
3 High Saturation
4 Low Saturation
5 Low Alarm
6 Config Alarm/Sat Values

Field Communicator Menu Trees and Fast Keys Reference Manual

April 2021 00809-0100-4108

Note

Selections with black circle are only available in HART® Revision 7 mode. Selection will not
appear in HART Revision 5 DD.

Figure B-2: Configure - Guided Setup

Note

Selections with black circle are only available in HART Revision 7 mode. Selection will not
appear in HART Revision 5 DD.

90 Rosemount 2088, 2090P, and 2090F Pressure Transmitter Reference Manual

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Figure B-3: Configure - Manual Setup

Note

Selections with black circle are only available in HART Revision 7 mode. Selection will not
appear in HART Revision 5 DD.

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Figure B-4: Configure - Alert Setup

92 Rosemount 2088, 2090P, and 2090F Pressure Transmitter Reference Manual

Home

1 Overview
2 Configure
3 Service Tools

Trends

1 Pressure
2 Scaled Variable
3 Sensor Temperature

Pressure

1 Pressure
2 Status

Scaled Variable

1 Scaled Variable
2 Status

Sensor Temperature

1 Sensor Temperature
2 Status

Analog Output

1 Analog Output

Percent of Range

1 Percent of Range

Maintenance

1 Pressure Calibration
2 Analog Calibration
3 Restore Factory Calibration
4 Security
5 Locate Device
6 Device Reset

Pressure Calibration

1 Upper Sensor Trim
2 Lower Sensor Trim
3 Zero Trim
4 Damping
5 AO Transfer Function
6 Last Calibration Points
7 Sensor Limits

AO Transfer Function

1 Upper Calibration Points
2 Lower Calibration Points

LOI Password Protection

1 Password Protection
2 Configure Password

HART Lock

1 Device Lock
2 Lock/Unlock

Sensor Limits

1 PV Upper Limit
2 PV Lower Limit
3 PV Minimum Span

Security

1 Security Switch Status
2 External Buttons
3 Configuration Buttons
4 HART Lock
5 LOI Password Protection

Simulate

1 Loop Test
2 Pressure
3 Scaled Variable
4 Sensor Temperature

Active Alerts

1 Refresh Alerts
2 Active Alert 1
3 Active Alert 2
4 Etc.

Service Tools

1 Active Alerts
2 Variables
3 Trends
4 Maintenance
5 Simulate

Variables

1 Variable Summary
2 Pressure
3 Scaled Variable
4 Analog Output
5 Percent of Range
6 Sensor Temperature

Reference Manual Field Communicator Menu Trees and Fast Keys

00809-0100-4108 April 2021

Figure B-5: Service Tools

Note

Selections with black circle are only available in HART Revision 7 mode. Selection will not
appear in HART Revision 5 DD.

B.2 Field communicator Fast Keys

• A (✓) indicates the basic configuration parameters. At minimum these parameters

should be verified as a part of configuration and startup.

• A (7) indicates availability only in HART revision 7 mode.

Table B-1: Device Revision 9 and 10 (HART7), DD Revision 1 Fast Key Sequence

Reference Manual 93

Function Fast Key sequence

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

✓ Damping 2, 2, 1, 1, 5 2, 2, 1, 1, 5

✓ Primary Variable 2, 2, 5, 1, 1 2, 2, 5, 1, 1

✓ Range Values 2, 2, 2, 1 2, 2, 2, 1

✓ Tag 2, 2, 7, 1, 1 2, 2, 7, 1, 1

HART 7 HART 5

Field Communicator Menu Trees and Fast Keys Reference Manual

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Table B-1: Device Revision 9 and 10 (HART7), DD Revision 1 Fast Key Sequence

(continued)

Function Fast Key sequence

HART 7 HART 5

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

✓ Pressure Units 2, 2, 1, 1, 4 2, 2, 1, 1, 4

Date 2, 2, 7, 1, 5 2, 2, 7, 1, 4

Descriptor 2, 2, 7, 1, 6 2, 2, 7, 1, 5

Digital to Analog Trim (4 - 20 mA / 1-5 V Output) 3, 4, 2, 1 3, 4, 2, 1

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

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

LOI Password Protection 2, 2, 6, 5 2, 2, 6, 4

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

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

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

Pressure Trend 3, 3, 1 3, 3, 1

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

Scaled D/A Trim (4 - 20 mA / 1-5 V) Output) 3, 4, 2, 2 3, 4, 2, 2

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

Sensor Temperature Trend 3, 3, 3 3, 3, 3

Switch HART Revision 2, 2, 5, 2, 4 2, 2, 5, 2, 3

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

7 Long Tag 2, 2, 7, 1, 2

7 Locate Device 3, 4, 5

7 Simulate Digital Signal 3, 5

94 Rosemount 2088, 2090P, and 2090F Pressure Transmitter Reference Manual

LOI MENU

VIEW CONFIG
ZERO TRIM
UNITS
RERANGE
LOOP TEST
DISPLAY
EXTENDED MENU
EXIT MENU

UNITS

PRESSURE UNITS
TEMP UNITS
BACK TO MENU
EXIT MENU

RERANGE

ENTER VALUES
APPLY VALUES
BACK TO MENU
EXIT MENU

LOOP TEST

SET 4MA
SET 20MA
SET CUSTOM
END LOOP TEST
BACK TO MENU
EXIT MENU

DISPLAY

PRESS (on/off)
SCALED (on/off)
TEMP (on/off)
RANGE % (on/off)
STARTUP (on/off)
BACK TO MENU
EXIT MENU

EXTENDED MENU

CALIBRAT
DAMPING
TRANSFER FUNCT
SCALED VARIAB
ASSIGN PV
TAG
ALARM SAT VALUES
PASSWORD
SIMULATE
HART REV
BACK TO MENU
EXIT MENU

VIEW CONFIG

TAG
PV
PRESS UNITS
TEMP UNITS
URV
LRV
TRANSFER FUNCTION
DAMPING
HIALARM
LOALARM
HISAT
LOSAT
ALARM
SECURITY
BACK TO MENU
EXIT MENU

APPLY VALUES

LRV
URV
BACK TO MENU
EXIT MENU

ENTER VALUES

LRV
URV
BACK TO MENU
EXIT MENU

Reference Manual Local Operator Interface (LOI) Menu

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C Local Operator Interface (LOI) Menu

C.1 LOI menu tree

Reference Manual 95

EXTENDED MENU

CALIBRAT
DAMPING
TRANSFER FUNCT
SCALED VARIAB
ASSIGN PV
TAG
ALARM SAT VALUES
PASSWORD
SIMULATE
HART REV
BACK TO MENU
EXIT MENU

CALIBRAT

ZERO TRIM
LOWER TRIM
UPPER TRIM
ANALOG TRIM
FACTORY RECALL
BACK TO MENU
EXIT MENU

FACTORY RECALL

SENSOR RECALL
ANALOG RECALL
BACK TO MENU
EXIT MENU

TRANSFER FUNCT

LINEAR TRANSFER FUNCTION
SQR ROOT TRANSFER FUNCTION
BACK TO MENU
EXIT MENU

SCALED VARIAB

VIEW SCALED
CONFIG SCALED
BACK TO MENU
EXIT MENU

ASSIGN PV

PRESSURE SET PV
SCALED SET PV
BACK TO MENU
EXIT MENU

ALARM SAT VALUES

ROSEMOUNT VALUES
NAMUR VALUES
OTHER VALUES
BACK TO MENU
EXIT MENU

PASSWORD

ENABLE PASSWORD
CHANGE PASSWORD
BACK TO MENU
EXIT MENU

SIMULATE

SIMULATE PRESS
SIMULATE TEMP
SIMULATE SCALED
END SIMUL
BACK TO MENU
EXIT MENU

HART REV

HART7 REV
HART5 REV
BACK TO MENU
EXIT MENU

OTHER VALUES

HIGH ALARM
LOW ALARM
HIGH SATURATION
LOW SATURATION
BACK TO MENU
EXIT MENU

Local Operator Interface (LOI) Menu Reference Manual

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C.2 LOI menu tree - extended menu

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C.3 Number entry

Floating-point numbers can be entered with the LOI. All eight number locations on the top
line can be used for number entry. Refer to Configuring with a LOI for LOI button
operation. Below is a floating-point number entry example for changing a value of
“-0000022” to “000011.2”.

Step Instruction Current position (indicated by

underline)

1 When the number entry begins, the left most position is

the selected position. In this example, the negative
symbol, “-“, will be flashing on the screen.

2 Press the scroll button until the “0” is blinking on the

screen in the selected position.

3 Press the enter button to select the “0” as an entry. The

second digit from the left will be blinking.

4 Press the enter button to select “0” for second digit. The

third digit from the left will be blinking.

5 Press the enter button to select “0” for the third digit.

The fourth digit from the left will now be blinking.

6 Press the enter button to select “0” for the fourth digit.

The fifth digit from the left will now be blinking.

7 Press scroll to navigate through the numbers until the

“1” is on the screen.

8 Press the enter button to select the “1” for the fifth digit.

The sixth digit from the left will now be blinking.

9 Press scroll to navigate through the numbers until the

“1”, is on the screen.

10 Press the enter button to select the “1” for the sixth digit.

The seventh digit from the left will now be blinking.

-0000022

00000022

00000022

00000022

00000022

00000022

00001022

00001022

00001122

00001122

11 Press scroll to navigate through the numbers until the

decimal, “.”, is on the screen.

12 Press the enter button to select the decimal, “.”, for the

seventh digit. After pressing enter, all digits to the right
of the decimal will now be zero. The eighth digit from the
left will now be blinking.

13 Press the scroll button to navigate through the numbers

until the "2", is on the screen.

14 Press the enter button to select the “2” for the eighth

digit. The number entry will be complete and a “SAVE”
screen will be shown.

000011.2

000011.0

000011.2

000011.2

Usage notes:

• It is possible to move backwards in the number by scrolling to the left arrow symbol

and pressing enter.

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• The negative symbol is only allowed in the left most position.

• Numbers can be entered in scientific notation by placing an “E” in the 7th position.

C.4 Text entry

Text can be entered with the LOI. Depending on the edited item, up to eight locations on
the top line can be used for text entry. Text entry follows the same rules as the number
entry rules in LOI menu tree, except the following characters are available in all locations:
A-Z, 0-9, -, /, space.

Usage note:

If the current text contains a character the LOI cannot display, it will be shown as an
asterisk “*”.

98 Rosemount 2088, 2090P, and 2090F Pressure Transmitter Reference Manual

Reference Manual

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Reference Manual 99

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Rev. CC

2021

For more information:

©

2021 Emerson. All rights reserved.

www.emerson.com

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.