Rosemount 1810 Flush Mount Transmitter Manuals & Guides

Reference Manual

00809-0100-4020, Rev BA
September 2002

Model 1810

Flush Mount Transmitter

www.rosemount.com

Reference Manual

00809-0100-4020, Rev BA
September 2002

Model 1810

Model 1810 Flush Mount
Transmitter

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.

Within the United States, Rosemount Inc. has two toll-free assistance numbers:

Customer Central

Technical support, quoting, and order-related questions.

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

North American Response Center

Equipment service needs.

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

Outside of the United States, contact your local Rosemount representative.

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 Rosemount
Sales Representative.

Fisher-Rosemount satisfies all obligations coming from legislation
to harmonize product requirements in the European Union.

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Reference Manual

00809-0100-4020, Rev BA
September 2002

Model 1810

Table of Contents

SECTION 1 Introduction

SECTION 2 Installation

SECTION 3 Configuration

Section 2: Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Section 3: Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Section 4: Operation and Maintenance . . . . . . . . . . . . . . . . . . . 1-1

Appendix A: Reference Data. . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Return of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Process Coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Transmitter Installation- Process Coupling. . . . . . . . . . . . . . . . . . . 2-3

Transmitter Installation- PASVE

Electrical Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Connect Wiring and Power Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Signal Wiring Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Commissioning on the bench With HART . . . . . . . . . . . . . . . . . . . . . . 3-2

Setting the Loop to Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Bench Hook-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Check Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Basic Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Tag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Output Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Rerange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Method 1: Rerange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Method 2: Rerange using the communicator and pressure source or

process pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Damping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Detailed Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Failure Mode Alarm and Saturation . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Diagnostics and Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Test Device. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Loop Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Advanced Functions for HART Protocol . . . . . . . . . . . . . . . . . . . . . . . 3-6

Saving, Recalling, and Cloning Configuration Data . . . . . . . . . . . . 3-6

Burst Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Multidrop Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

™

Valve . . . . . . . . . . . . . . . . . . . . 2-3

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Model 1810

Reference Manual

00809-0100-4020, Rev BA

September 2002

Changing the transmitter address . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

HART Communicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Communicating with a multidropped transmitter . . . . . . . . . . . . . . 3-9

HART Communicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Polling a multidropped transmitter . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

HART Communicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

SECTION 4 Operation

APPENDIX A Reference Data

Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Calibration Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Deciding which trim procedure to use . . . . . . . . . . . . . . . . . . . . 4-3

Sensor Trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Zero Trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Full Trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Recall Factory Trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Recall Factory Trim—Sensor Trim . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Recall Factory Trim—Analog Output . . . . . . . . . . . . . . . . . . . . . . . 4-4

Analog Output Trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Digital-to-Analog Trim. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Scaled Digital-to-Analog Trim. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Functional Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4

Dimensional Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5

Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6

TOC-2

Reference Manual

00809-0100-4020, Rev BA
September 2002

Section 1 Introduction

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-1

Return of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-2

The Model 1810 is a Flush mount transmitter designed specifically for the
pulp and paper industry. The transmitter can be mounted using a welded
process coupling and is also compatible with the PASVE

This manual provides installation, configuration, and other procedures for the
use of the Rosemount Model 1810 Flush Mount Transmitter. Specifications
and other important information are also included.

Section 2: Installation

• Mounting

• Installation

• Wiring

Section 3: Configuration

• Basic Setup

• Diagnostics and Services

• Multidrop Communication

Model 1810

™

valve.

Section 4: Operation and Maintenance

• Calibration

•Sensor Trim

Appendix A: Reference Data

• Specifications

• Ordering Information

• Dimensional Drawings

SAFETY MESSAGES Procedures and instructions in this manual may require special precautions to

ensure the safety of the personnel performing the operations. Refer to the
safety messages, listed at the beginning of each section,
before performing any operations.

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Reference Manual

00809-0100-4020, Rev BA

Model 1810

September 2002

RETURN OF MATERIALS To expedite the return process outside of the United States and Finland,

please contact the nearest Rosemount representative.

• Within Finland, please call 358-20-1111-300.

• Within the United States and Canada, call the North American
Response Center using the 800-654-RSMT (7768) toll-free number.
The Response 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
name of the process material to which the product was last exposed.

Mishandling products exposed to a hazardous substance may result in death
or serious injury. If the product being returned was exposed to a hazardous
substance as defined by OSHA, a copy of the required Material Safety Data
Sheet (MSDS) for each hazardous substance identified must be included with
the returned goods.

The North American Response Center will detail the additional information
and procedures necessary to return goods exposed to hazardous
substances.

See Safety Messages on page 2-1 for complete warning information.

1-2

Reference Manual

00809-0100-4020, Rev BA
September 2002

Model 1810

Section 2 Installation

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-1

Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-2

This section provides installation instructions for the Model 1810 Flush Mount
Transmitter.

SAFETY MESSAGES Instructions and procedures in this section may require special precautions to

ensure the safety of the personnel performing the operations. Please refer to
the following safety messages before performing any operation in this section.

Failure to follow these installation guidelines could result in death or serious injury:

• Make sure only qualified personnel perform the installation.

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

• Excessive heat will destroy the process coupling. Weld in sections, cooling each
section with a wet cloth. Allow adequate cooling between passes.

Electrical shock can result in death or serious injury

• Avoid contact with leads and terminals. High voltage that may be present on leads
can result in electrical shock.

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Model 1810

Reference Manual

00809-0100-4020, Rev BA

September 2002

MOUNTING The Model 1810 is designed to be mounted directly to the process piping

using a process coupling or PASVE
existing PASVE

™

valve or process coupling or install a new process coupling

™

valve. Mount the transmitter using an

using the following instructions.

Installing the 1810 transmitter involves:

• Attaching a process coupling to the tapped process vessel

• Attaching the transmitter to the process coupling

• Making electrical connections.

NOTE

If you intend to use an existing process coupling or existing PASVE

™

valve,

proceed to Transmitter Installation.

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

accept the process coupling. The diameter for the process coupling
should be 45.5 mm +0.5/-0.2 mm (1.79 in +0.020/-0.008 in). The hole
should produce a tight, uniform fit when coupled with the process
coupling.

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

3. Remove the process coupling from the transmitter.

4. Insert the shut-off plug into the process coupling. This will help prevent
any distortion due to heat.

Figure 2-1. Model 1810 Process Coupling

Process Coupling - Shut-Off Plug

Shut Off Plug

67mm (2.65in)

Bevel

+0.5

45.5

(1.79)

-0.2

(+0.020)

(-0.008)

Dimensions are in

millimeters (inches)

5. Position the process coupling in the vessel hole and tack coupling in
place using the welding sequence shown in Figure 2-2 on page 2-3. Cool
each section with a wet cloth before proceeding to the next section.

1810F01A

2-2

Reference Manual

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September 2002

Model 1810

Figure 2-2. Model 1810 Welding Sequence

Welding Sequence

Transmitter Installation­Process Coupling

3

5

7

2

6. Weld the coupling in place using 0.762 to 1.143 mm (0.030 to 0.045 in)
stainless steel filler rod as filler in the beveled area. Using between 100
and 125 amps, adjust the amperage for 2.0 mm (0.08 in) penetration.

1. After the process coupling has cooled, position the transmitter into the
process coupling so that the guide groove on the transmitter aligns with
the stop pin on the coupling. When the pin and the groove are aligned,
the transmitter will not rotate within the process coupling.

2. Using your fingers, tighten the hex nut to ensure that the transmitter is
locked into position. In order to eliminate any vibration effects, it is
recommended that the nut be tightened with a tool. (Approximately 60
Nm of torque is sufficient.)

1

8

6

4

Transmitter Installation­PASVE™ Valve

1. Position the transmitter into the PASVE™ valve so that the guide groove
on the transmitter aligns with the stop pin on the valve. When the pin and
the groove are aligned, the transmitter will not rotate within the valve.

2. Using your fingers, tighten the hex nut to ensure that the transmitter is
locked into position. In order to eliminate any vibration effects, it is
recommended that the nut be tightened with a tool. (Approximately 60
Nm of torque is sufficient.)

Electrical Considerations

The wiring terminals on the Model 1810 are located in the terminal
compartment on the top of the transmitter. Access to these terminations is
required during installation and may be necessary during periodic calibration
of the transmitter.

2-3

Model 1810

Reference Manual

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September 2002

Connect Wiring and Power Up

To make connections, perform the following procedure:

1. Remove the transmitter housing cover.

2. Connect the positive lead to the terminal marked (+) and the negative
lead to the terminal marked (–).

3. To prevent moisture accumulation in the transmitter housing, install
wiring (7.5 - 10mm diameter for best results) using the supplied cable
gland. Install wiring with a drip loop. Arrange the drip loop so the bottom
is lower than the cable gland connections and the transmitter housing.

NOTE

Use only the supplied cable gland for field wiring. Using conduit could result in
condensation entering the transmitter housing.

Inductive-based transient protectors, including the Rosemount Model 470,
can adversely affect the output of Model 1810 transmitters. Do not use Model
470 for transient protection with a Model 1810.

Signal Wiring Grounding

Do not run signal wiring in conduit or open trays with power wiring, or near
heavy electrical equipment. Ground the signal wiring at any one point on the
signal loop, or leave it ungrounded. The negative terminal of the power supply
is a recommended grounding point. Wiring should be shielded in electrically
noisy environments to provide additional immunity.

NOTE

A minimum loop resistance of 250 ohms is required to communicate with a
HART Communicator. If a single power supply is used to power more than
one Model 1810 transmitter, the power supply and circuitry common to the
transmitter, should not have more than 20 ohms of impedance at 1200 Hz.

See Safety Messages on page 2-1 for complete warning information.

2-4

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September 2002

.

Figure 2-3. Model 1810 Field Wiring

Field Wiring

Model 1810

Model 275

Model 1810

24V dc
Supply

R

Current

Meter

L > 250 ohm

2-5

Model 1810

Reference Manual

00809-0100-4020, Rev BA

September 2002

Power Supply

The DC power supply should provide power to the transmitter with less than
one percent ripple. The total loop resistance is the sum of the resistance of
the signal wires and the resistance load of the controller, indicator and other
pieces of equipment in the loop. Figure 2-4 shows the transmitter power
supply load limitations.

Figure 2-4. Model 1810 Power Supply

Power Supply

Operating

Region

Loop Resistance (Ohms)

Supply Voltage (Volts)

2-6

Reference Manual

00809-0100-4020, Rev BA
September 2002

Model 1810

Section 3 Configuration

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-1

Commissioning on the bench With HART . . . . . . . . . . . . page 3-2

Check Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-3

Basic Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-3

Detailed Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-5

Diagnostics and Service . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-5

Advanced Functions for HART Protocol . . . . . . . . . . . . . page 3-6

Multidrop Communication . . . . . . . . . . . . . . . . . . . . . . . . . page 3-7

OVERVIEW This section contains information on commissioning and tasks that can be

performed on the bench prior to installation or in the field after installation.
This section contains Model 1810 configuration information only.

™

HART
functions. For convenience, HART Communicator fast key sequences are
labeled “Fast Keys” for each software function below the appropriate
headings.

Communicator instructions are given to perform configuration

SAFETY MESSAGES Procedures and instructions in this section may require special precautions to

ensure the safety of the personnel performing the operations. Information that
raises potential safety issues is indicated by a warning symbol ( ). Refer to
the following safety messages before performing an operation preceded by
this symbol.

Warnings

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.

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Model 1810

Reference Manual

00809-0100-4020, Rev BA

September 2002

COMMISSIONING ON THE BENCH WITH HART

Setting the Loop to Manual

Commissioning consists of testing the transmitter and verifying transmitter
configuration data. The Model 1810 can be commissioned either before or
after installation. Commissioning the transmitter on the bench before
installation using a Model 275 HART Communicator ensures that all
transmitter components are in working order.

To commission on the bench, connect the transmitter and the HART
Communicator. Connect HART Communicator leads at any termination point
in the signal loop.

The power supply must provide 10.5 to 55 V dc at the transmitter terminals,
and a current meter to measure output current are required to commission the
Model 1810. To enable communication, a resistance of at least 250 ohms
must be present between the HART Communicator loop connection and the
power supply.

When using a HART Communicator, any configuration changes made must
be sent to the transmitter by using the “Send” key (F2).

For more information on the Model 275 HART Communicator see document
00275-8026-0002.

Whenever sending or requesting data that would disrupt the loop or change
the output of the transmitter, set the process application loop to manual. The
HART Communicator will prompt you to set the loop to manual when
necessary. Acknowledging this prompt does not set the loop to manual. The
prompt is only a reminder; set the loop to manual as a separate operation.

3-2

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September 2002

Model 1810

Wiring Bench Hook-up

Connect the bench equipment and turn on the HART Communicator by
pressing the ON/OFF key. The HART Communicator will search for a
HART-compatible device and indicate when the connection is made.

Review Review the transmitter configuration parameters set at the factory to ensure

HART Fast Keys 1,5

accuracy and compatibility with your particular application. After activating the
review function, scroll through the data list to check each variable. Refer to
“Basic Setup” on page 3-3 in this section of the manual if a change to the
transmitter configuration data is necessary.

CHECK OUTPUT Before performing other on-line operations, review the digital output

HART Fast Keys 1,1

parameters to ensure that the transmitter is operating properly and is
configured to the appropriate process variables.

The process variables for the Model 1810 provide the transmitter output, and
are continuously updated. The Process Variables menu displays the following
process variable:

• Pressure

• Percent Range

• Analog Output

• Sensor Temperature

BASIC SETUP From the Basic Setup menu you can configure the transmitter for certain

basic variables. In most cases, all of these variable are pre-configured at the
factory.

Tag

HART Fast Keys 1, 3, 1

The Tag variable is the easiest way to identify and distinguish between
transmitters in multi-transmitter environments. Use this variable to label
transmitters electronically according to the requirements of your application.
The tag you define is automatically displayed when a HART-based
communicator establishes contact with the transmitter at power-up. The tag
may be up to eight characters long and has no impact on the output of the
transmitter.

3-3

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Model 1810

September 2002

Output Units The Unit command sets the desired primary variable units. See the

HART Fast Keys 1,3,2

transmitter output to one of the following engineering units:

•inH

0

2

•inHg

•ftH

•mmH

0

2

0

2

•mmHg

•psi

•bar

• mbar

• g/cm

•kg/cm

2

2

•Pa

•kPa

•torr

•atm

•inH

•mmH

0 @ 4°C

2

0 @ 4°C

2

Rerange The Range Values command sets the 4 and 20 mA points (lower and upper

HART Fast Keys 1,3,3

range values). Setting the range values to the limits of expected readings
maximizes transmitter performance; the transmitter is most accurate when
operated within the expected pressure ranges for your application. In practice,
you may reset the transmitter range values as often as necessary to reflect
changing process conditions.

You may use either of two different methods to rerange the transmitter. Each
method is unique; examine both closely before deciding which method to use.

Method 1: Rerange

Reranging using only the communicator is the easiest and most popular way
to rerange the transmitter. This method changes the values of the analog 4
and 20 mA points independently without a pressure input.

To rearrange using only the communicator enter the fast-key sequence
above, select 1: Keypad input, and follow the on-line instructions. Or, enter
the values directly from the HOME screen.

Method 2: Rerange using the communicator and pressure source or
process pressure

When specific 4 and 20 mA points are not known, the transmitter can be
reranged using the communicator and a pressure source. This method
changes the values of the analog 4 and 20 mA points. When you set the 4 mA
point the span is maintained; when you set the 20 mA point the span
changes. To rerange using the HART communicator and a pressure source,
use the fast key sequence and select 2: Apply Values and proceed following
the instructions provided by the communicator.

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September 2002

Model 1810

Damping The Damping command changes the response time of the transmitter to

HART Fast Keys 1, 3, 6

smooth variations in output readings caused by rapid changes in input.
Determine the appropriate damping setting based on the necessary response
time, signal stability, and other requirements of the loop dynamics of your
system. The default damping value is 0.40 seconds and can be reset in fixed
increments of 0.05, 0.10, 0.20, 0.40, 0.80, 1.60, 3.20, 6.40, 12.8, and 25.6
seconds.

DETAILED SETUP

Failure Mode Alarm and Saturation

The Model 1810 transmitter automatically and continuously perform
self-diagnostic routines. If the self-diagnostic routines detect a failure, the
transmitter drives the output to the standard high alarm value of 21.75mA.
The transmitter will also drive the output to configured saturation values if the
applied pressure goes outside the 4-20 mA range values.

DIAGNOSTICS AND SERVICE

Test Device The Test Device command initiates a more extensive diagnostic routine than

HART Fast Keys 1, 2, 1, 1

that performed continuously by the transmitter. If the transmitter test detects a
problem, the communicator displays messages to indicate the source of the
problem.

Loop Test The Loop Test command verifies the output of the transmitter, the integrity of

HART Fast Keys 1, 2, 2

the loop, and the operations of any recorders or similar devices installed in the
loop. To initiate a loop test, perform the following procedure:

1. Connect a reference meter to the transmitter. Connect a current meter in
series with the signal loop, or shunt the power to the transmitter through
the meter at some point in the loop.

2. From the HOME screen, select 1 Device setup, 2 Diagnostics and
Service, and 2 Loop Test, to prepare for a loop test.

3. Select OK after you set the control loop to manual. The communicator
displays the loop test menu.

4. Select a discreet milliamp level for the transmitter to output. At the
Choose Analog Output prompt, select 1: 4mA, 2: 20mA, or select
3: Other to manually input a value between 4 and 20 milliamps.

5. Check the current meter installed in the test loop to verify that it reads the
value you commanded the transmitter to output. If the readings do not
match, the transmitter requires a D/A trim or the current meter is
malfunctioning.

After completing the test procedure, the display returns to the loop test screen
and allows you to choose another output value.

3-5

Model 1810

ADVANCED FUNCTIONS FOR HART PROTOCOL

Reference Manual

00809-0100-4020, Rev BA

September 2002

Saving, Recalling, and Cloning Configuration Data

Fast Keys

left arrow, 1, 2

Use the cloning feature of the HART Communicator to configure several
Model 1810 transmitters similarly. Cloning involves configuring a transmitter,
saving the configuration data, then sending a copy of the data to a separate
transmitter. Several possible procedures exist when saving, recalling, and
cloning configuration data. For complete instructions refer to the HART
Communicator manual (publication no. 00809-0100-4275). One common
method is as follows:

1. Completely configure the first transmitter.

2. Save the configuration data:

a. Select F2 SAVE from the HART Communicator HOME/ONLINE

screen.

b. Ensure that the location to which the data will be saved is set to

MODULE. If it is not, select 1: Location to set the save location to
MODULE.

c. Select 2: Name, to name the configuration data. The default is the

transmitter tag number.

d. Ensure that the data type is set to STANDARD. If the data type is

STANDARD, select 3: Data Type to set the data type to

NOT
STANDARD.

e. Select F2 SAVE.

3. Connect and power the receiving transmitter and HART Communicator.

4. Select the back arrow from the HOME/ONLINE screen. The HART
Communicator menu appears.

5. Select 1: Offline, 2: Saved Configuration, 1: Module Contents to reach
the MODULE CONTENTS menu.

6. Use the DOWN ARROW to scroll through the list of configurations in the
memory module, and use the RIGHT ARROW to select and retrieve the
required configuration.

7. Select 1: Edit.

8. Select 1: Mark All.

9. Select F2 SAVE.

10. Use the DOWN ARROW to scroll through the list of configurations in the
memory module, and use the RIGHT ARROW to select the configuration
again.

11. Select 3: Send to download the configuration to the transmitter.

12. Select OK after the control loop is set to manual.

13. After the configuration has been sent, select OK to acknowledge that the
loop can be returned to automatic control.

3-6

When finished, the HART Communicator informs you of the status. Repeat
Steps 3 through 13 to configure another transmitter.

NOTE

The transmitter receiving cloned data must have the same software version
(or later) as the original transmitter.

Reference Manual

00809-0100-4020, Rev BA
September 2002

Model 1810

Burst Mode Burst Mode sets the transmitter to maintain digital contact with a Digital

HART Fast Keys 1, 4, 3, 3, 3

Control System that has custom software to support burst mode. When the
Model 1810 Smart is configured for burst mode, it provides faster digital
communication from the transmitter to the control system by eliminating the
time required for the control system to request the information from the
transmitter.

Burst Mode is compatible with use of the analog signal. The HART protocol
features simultaneous digital and analog data transmission which allows the
analog output to drive other equipment in the loop while the control system is
receiving digital information. Burst mode applies only to the transmission of
dynamic data (pressure and temperature in engineering units, pressure in
percent of range, and/or analog output in mA), and does not affect the way
other transmitter data is accessed.

Access to information other than dynamic transmitter data is obtained through
the normal poll/response method of HART communication. A HART-based
communicator 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 HART-based
communicator or a control system to initiate a request. The transmitter will
receive the request, process the response message, and then continue
‘bursting’ the data approximately three times per second.

MULTIDROP COMMUNICATION

To configure the transmitter for burst mode, perform the following step:

1. From the HOME screen, enter the fast key sequence shown.

2. Select “ON” from the burst mode selection screen.

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. With the HART communications protocol, up to 15
transmitters can be connected on a single twisted pair of wires.

NOTE

The Burst Mode Operation is not compatible with multidrop communications.

The application of a 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 the transmitters
can be accomplished with commercially available Bell 202 modems and a
host implementing the HART protocol. Each transmitter is identified by a
unique address (1-15) and responds to the commands defined in the HART
protocol.

3-7

Model 1810

Reference Manual

00809-0100-4020, Rev BA

September 2002

The following drawing shows a typical multidrop network. This figure is not
intended as an installation diagram. Contact Rosemount product support with
specific requirements for multidrop applications.

HART-based communicators can test, configure, and format a multidropped
transmitter the same way as a transmitter in a standard point-to-point
installation.

NOTE

The transmitter is set to address 0 at the factory, allowing it to operate in the
standard point-to-point manner with a 4-20 mA output signal. To activate
multidrop communications, you must change the transmitter address to a
number from 1 to 15. This change deactivates the 4-20 mA analog output,
locking it to 4 mA.

Figure 3-1. Model 1810 Multidrop Communication

Typical Multidrop Communication

Bell 202

Modem

RS-232-C

Power

Supply

NOTE

A minimum loop resistance of 250 ohms is required to communicate with a
HART Communicator. If a single power supply is used to power more than
one Model 1810 transmitter, the power supply and circuitry common to the
transmitter, should not have more than 20 ohms of impedance at 1200 Hz.

1810-0087A

3-8

Reference Manual

00809-0100-4020, Rev BA
September 2002

Model 1810

Changing the transmitter address

HART Fast Keys 1, 4, 3, 3, 1

Communicating with a multidropped transmitter

HART Fast Keys Left Arrow, 4, 1,1

Polling a multidropped transmitter

HART Fast Keys Left Arrow, 4, 1, 1

To activate multidrop communication, the transmitter poll address must be
assigned a number from 1 to 15, and each transmitter in a multidropped loop
must have a unique poll address.

HART Communicator

From the HOME screen, enter the fast key sequence shown.

HART Communicator

To communicate with a multidropped transmitter, configure the HART
Communicator to poll for a non-zero address.

1. From the HOME screen, enter the fast key sequence shown.

2. On the polling menu, scroll down and select “Digital Poll.” In this mode,
the HART Communicator automatically polls for devices at addresses
0-15 upon start up.

HART Communicator

From the HOME screen, enter the fast key sequence shown.

NOTE

The Model 275 HART Communicator requires you to use to the Utility Menu
to perform an auto poll. This menu is available from the Main Menu of the
HART Communicator. Press the left arrow to move from the Online Menu to
the Main Menu. Press 4 from the Main Menu to access the Utility Menu.

3-9

Model 1810

Reference Manual

00809-0100-4020, Rev BA

September 2002

3-10

Reference Manual

00809-0100-4020, Rev BA
September 2002

Model 1810

Section 4 Operation

Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-1

Sensor Trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-3

Recall Factory Trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-4

Analog Output Trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-5

CALIBRATION Calibrating the transmitter increases the precision of your measurement

system. You may use one or more of a number of trim functions when
calibrating.

To understand the trim functions, it is necessary to understand that Smart
transmitters operate differently from analog transmitters. An important
difference is that Smart transmitters are factory-characterized; they are
shipped with a standard sensor curve stored in the transmitter firmware. In
operation, the transmitter uses this information to produce a process variable
output, in engineering units, dependent on the sensor input. The trim
functions allow you to make corrections to the factory-stored characterization
curve by digitally altering the transmitter’s interpretation of the sensor input.

The trim functions should not be confused with the rerange functions.
Although the rerange command matches a sensor input to a 4-20 mA output­as in conventional calibration - it does not affect the transmitter’s
interpretation of the input.

Calibration Overview

Complete calibration of the Model 1810 Flush Mount Transmitter involves one
or more of the following tasks:

Configure the analog output parameters

• Set process variable units (See Review on page 3-3)

• Set output type (See Output Units on page 3-4)

• Rerange (See Rerange on page 3-4)

• Set damping (See Damping on page 3-5)

www.rosemount.com

Model 1810

Figure 4-1. Model 1810 Transmitter Range

Transmitter Ranged 0 to 100 inH20

Transmitter Electronics Module

Microprocessor

Digital PV

Sensor

Reference Manual

00809-0100-4020, Rev BA

September 2002

Analog Output

Input

Pressure

NOTE
Value on PV line should equal
the input pressure. Value on
AO line should equal the
output device reading.

Input Device

HART

Communicator

20.00 mA

Output Device

1810: PT-4763
Online

1 ➡ Device Setup

2 PV 100.00 inH2O
3 AO 20.00 mA
4 LRV 0.00 inH2O
5 URV 100.00 inH2O

Calibrate the Sensor

• Full Trim (See Full Trim on page 4-4)

• Zero Trim (Zero Trim on page 4-3)

Calibrate the 4-20 mA output

• Digital to analog trim (See Digital-to-Analog Trim on page 4-5)

• Scaled digital to analog trim
(See Scaled Digital-to-Analog Trim on page 4-5)

4-2

Figure 4-1 on page 4-2 illustrates the Model 1810 Flush Mount Transmitter
data flow. This data flow can be summarized in four major steps:

1. A change in pressure is measured by a change in the sensor output
(Sensor Signal).

2. The sensor signal is converted to a digital format that can be understood
by a microprocessor (Analog to Digital Signal Conversion).

3. Corrections are performed in the microprocessor to obtain a digital
representation of the process input (Digital PV).

4. The Digital PV is converted to an analog value (Digital-to-Analog Signal
Conversion).

Reference Manual

00809-0100-4020, Rev BA
September 2002

Deciding which trim procedure to use

Follow the steps below to determine whether the analog-to-digital section or
the digital-to-analog section of the transmitter electronics is in need of
calibration.

1. Connect a pressure source, a HART communicator, and a digital readout
device to the transmitter.

2. Establish communication between the transmitter and the communicator.

3. Apply pressure.

4. Compare the applied pressure to the Process Variable (PV) line on the
Communicator Online Menu. If the PV reading on the communicator
does not match the applied pressure, and you are certain your test
equipment is accurate, perform a sensor trim.

5. Compare the Analog Output (AO) line on the communicator online menu
to the digital readout device. If the AO reading on the communicator
does not match the digital readout device, and you are certain that your
test equipment is accurate, perform an output trim.

Model 1810

SENSOR TRIM You can trim the sensor using either a full trim or the zero trim function. The

trim functions vary in complexity, and their use is application dependent. Both
alter the transmitter’s interpretation of the input signal.

Zero Trim A Zero Trim is a single-point adjustment. It is useful for compensating for

HART Fast Keys 1, 2, 3, 3, 1

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 full trim over the full sensor range.

NOTE

Use full trim on absolute transmitters; do not use zero trim.

To calibrate the sensor using the Zero Trim function, perform the following
procedure:

1. Vent the transmitter and attach a communicator to the measurement
loop.

2. From the HOME screen select 1: Device setup, 2: Diagnostics and
service, 3: Calibration, 3: Sensor Trim, 1: Zero trim to prepare and adjust
the zero trim.

3. Follow the commands provided by the communicator to complete the
adjustment of the zero trim.

4-3

Reference Manual

00809-0100-4020, Rev BA

Model 1810

September 2002

Full Trim A Full Trim is a two-point sensor calibration where two end-point pressures

HART Fast Keys 1, 2, 3, 3

are applied, and all output is linearized between them. You should 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 factory-established characterization curve is
not changed by this procedure. The trim values allow you to optimize
performance over your specified measuring range at the calibration
temperature.

To calibrate the sensor using the Full Trim function, perform the following
procedure:

1. Assemble and power the entire calibration system including a
transmitter, communicator, power supply, pressure input source, and
readout device.

NOTE

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

2. From the communicator menu select 1: Device setup, 2: Diagnostics and
service, 3: Calibration, 3: Sensor trim, 2: Lower sensor trim to prepare
and adjust lower trim point.

NOTE

Do not attempt to obtain reverse output by reversing the high and low points.
The transmitter allows approximately a 5% URL deviation from the
characterization curve established at the factory.

3. Follow the commands provided by the communicator to complete the
adjustment of the lower value.

4. Repeat the procedure for the upper value, replacing 2: Lower sensor trim
with 3: Upper sensor trim in Step 2.

RECALL FACTORY TRIM The Recall Factory Trim commands allow the restoration of the as-shipped

factory settings of the sensor trim and analog output trim.

Recall Factory Trim—
Sensor Trim

Fast Keys

1, 2, 3, 4, 1

Recall Factory Trim—
Analog Output

Fast Keys

1, 2, 3, 4, 2

This command resets the transmitter sensor trim to the “as shipped” factory
settings. The Recall Factory Trim—Sensor Trim command can be useful for
recovering from an inadvertent zero trim of an absolute pressure unit or
inaccurate pressure source.

This command resets the transmitter analog output trim to the “as shipped”
factory settings. The Recall Factory Trim—Analog Output command can be
useful for recovering from an inadvertent trim, incorrect Plant Standard or
faulty meter.

4-4

Reference Manual

00809-0100-4020, Rev BA
September 2002

Model 1810

ANALOG OUTPUT TRIM The Output Trim commands allow you to alter the transmitter’s conversion of

the input signal to a 4-20 mA output (See Check Output on page 3-3). You
can trim the transmitter output using either the digital to analog trim or the
scaled digital to analog trim function.

Digital-to-Analog Trim To perform a Digital-to-Analog Trim, perform the following procedure:

HART Fast Keys 1, 2, 3, 2, 1

1. From the HOME screen, select 1: Device setup, 2: Diag/Service,
3: Calibration, 2: Analog output trim, 1: D/A trim. Select OK after you set

the control loop to manual.

2. Connect an accurate reference meter to the transmitter at the Connect
reference meter prompt. Connect the meter in series with the signal
loop, or shunt the transmitter power through the reference meter at some
point.

3. Select OK after connecting the reference meter.

4. Select OK at the Setting fld dev output to 4 mA prompt. The transmitter
outputs 4.00 mA.

5. Record the actual value from the reference meter, and enter it at the
Enter Meter Value prompt. The communicator prompts you to verify
whether or not the output value equals the value on the reference meter.

6. Select 1: Yes if the reference meter value equals the transmitter output
value, or 2: No if it does not.

Scaled Digital-to-Analog Trim

HART Fast Keys 1, 2, 3, 2, 2

NOTE

If you selected 1 Yes, proceed to step 7.
If you selected 2 No, repeat step 5.

7. Select OK at the Setting fld dev output to 20 mA prompt, and repeat
steps 5 and 6 until the reference meter equals the transmitter output
value.

Select OK after you return the control loop to automatic control.

The Scaled Digital-to-Analog Trim command matches the 4 and 20 mA points
to user-selectable reference scale other than 4 and 20 mA. To perform a
scaled D/A trim, connect an accurate reference meter to the transmitter and
trim the output signal to scale as outlined in the Scaled Output Trim
procedure.

4-5

Model 1810

Reference Manual

00809-0100-4020, Rev BA

September 2002

4-6

Reference Manual

00809-0100-4020, Rev BA
September 2002

Appendix A Reference Data

Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . page A-1

Functional Specifications . . . . . . . . . . . . . . . . . . . . . . . . . page A-2

Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-4

Dimensional Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-5

Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-6

Model 1810

PERFORMANCE SPECIFICATIONS

Conformance to specifications (±3 Sigma)

Technology leadership, advanced manufacturing techniques and statistical
process control ensure specification conformance to at least ±3 sigma.

Reference Accuracy

For zero-baed spans, reference conditions, silicone oil fill, SST materials,
standard process connection, and digital trim values set to equal range points.

Includes the effects of nonlinearity, hysteresis, and repeatability
Range 1: ±0.15% of span for spans of 1:1 to 7.5:1
Ranges 2, 3, 4: ±0.1% of span for spans 1:1 to 10:1

Long Term Stability

±0.1% URL per year

Ambient Temperature Effect per 50°C (90°F)

±(0.25% URL + 0.25% span) per 50°C

Vibration Effect

Less than ±0.1% of URL when tested per the requirements of IEC60770-1
field or pipeline with high vibration level (10-60 Hz 0.21mm peak to peak
displacement / 60-2000 Hz 3g)

Power Supply Effect

Less than ± 0.005% of calibrated span per volt

www.rosemount.com

RFI Effects

± 0.1% of span from 20 to 1000 MHz and for field strength up to 10 V/m

Model 1810

Reference Manual

00809-0100-4020, Rev BA

September 2002

FUNCTIONAL SPECIFICATIONS

Range and Sensor Limits

Model 1810 Range and Sensor Limits

Range Minimum Span Upper (URL)

14 psi

(27.6 kPa)

2 15 psi

(103 kPa)

3 80 psi

(552 kPa)

4 250 psi

(1,724 kPa)

(1) Assume atmospheric pressure of 14.7 psig.

30 psi

(207 kPa)

150 psi

(1034 kPa)

800 psi

(5,516 kPa)

2500 psi

(17,237 kPa)

Overpressure Limits

Range 1: 750 psi (5,170 kPa)
Range 2: 1,500 psi (10, 342 kPa)
Range 3: 1,600 psi (11,032 kPa)
Range 4: 3,750 psi (25,855 kPa)

Burst Pressure

Ranges 1-4: 11,000 psi (75,842 kPa)

Service

Liquid, gas, slurry, and vapor applications

Lower (LRL)

(Abs.)

0 psia

(0 kPa)

0 psia

(0 kPa)

0 psia

(0 kPa)

0 psia

(0 kPa)

(1)

Lower

-14.7 psig

(-101.3 kPa)

-14.7 psig

(-101.3 kPa)

-14.7 psig

(-101.3 kPa)

-14.7 psig

(-101.3 kPa)

4-20 mA (output code A)

Zero and Span Adjustment

Zero and span values can be set anywhere within the range.
Span must be greater than or equal to the minimum span.

Output

Two-wire 4-20 mA output. Digital process variable superimposed on 4-20
mA signal, available to any host that conforms to the HART protocol.

Power Supply

External power supply required. Transmitter operates on 10.5 to 55.0 V
dc with no load.

Load Limitations

Maximum loop resistance is determined by the voltage level of the
external power supply, as described by Figure A-1 on page A-3.

A-2

Reference Manual

00809-0100-4020, Rev BA
September 2002

Model 1810

Figure A-1. Model 1810 Power Supply

Power Supply

Max. Loop Resistance = 43.5 (Power Supply Voltage – 10.5)

Operating

Region

Loop Resistance (Ohms)

Supply Voltage (Volts)

Communication requires a minimum

loop resistance of 250 ohms.

Temperature Limits

Ambient

Silicone and Inert: –40 to 85 °C (–40 to 185 °F)
Neobee: –20 to 85 °C (–4 to 185 °F)

Storage

Silicone and Inert: –46 to 110 °C (–50 to 230 °F)
Neobee: –30 to 85°C (–22 to 185°F)

Process Temperature Limits

Silicone: -40 to 121°C (-40 to 250°F)
Inert: -30 to 121°C (-22 to 250°F)
Neobee: -20 to 140°C (-4 to 284°F)

Humidity Limits

0–100% relative humidity

Turn -On Ti me

Performance within specifications less than 2.0 seconds after power is
applied to the transmitter

Damping

The default damping value is 0.40 seconds and can be reset in fixed
increments of 0.05, 0.10, 0.20, 0.40, 0.80, 1.60, 3.20, 6.40, 12.8, and 25.6
seconds.

Failure Mode Alarm

HART/4-20mA (output code A)

If self-diagnostics detect a gross transmitter failure, the analog signal will
be driven off scale to alert the user. The Model 1810 provides a high
alarm value of

≥21.75 mA.

A-3

Model 1810

Reference Manual

00809-0100-4020, Rev BA

September 2002

PHYSICAL SPECIFICATIONS

Electrical Connections

M20 × 1.5 (CM20) for use with supplied cable gland (use 7.5 - 10mm diameter
for best results). HART interface connections fixed to terminal block for output
code A.

Process Connections

• PASVE

• Welded process coupling

Process-Wetted Parts

Non-Wetted Parts

Sensor Module Fill Fluid

Silicone (standard)
Inert (optional ordering code)
Neobee (optional ordering code)

™

valve compatible process connection

Process Isolating Diaphragms

316L SST, Hastelloy C-276

Electronics Housing

316L SST
NEMA 4X

®

Shipping Weights for Model 1810

2.2lb (1 kg)

A-4

Reference Manual

00809-0100-4020, Rev BA
September 2002

DIMENSIONAL DRAWINGS

Model 1810 Flush Mount Transmitter

56 (2.20)

94 (3.72)

Cable
Gland

M20

Model 1810

NOTE
Dimensions are in
millimeters (inches)

Standard Coupling Hygienic Coupling

67.3 (2.65)

44.7 (1.76)

42 (1.65)

213 (8.40)

1810C01A

44.7 (1.76)

67.3 (2.65)

2.5 (0.10)

A-5

Model 1810

ORDERING INFORMATION

Model Transmitter Type

1810 Flush Mount Transmitter

Code Measurement Type

G Gauge
A Absolute

Code Pressure Range

1 30 psi (207 kPa)
2 150 psi (1034 kPa)
3 800 psi (5,516 kPa)
4 2500 psi (17,237 kPa)

Code Isolating Diagram/Process Connection Material

2 316L SST
3 Hastelloy C® -276

Code Process Coupling Style

D00 No Coupling
D01 Hygienic, 316L SST
D02 Hygienic, Hastelloy
D11 Standard 316L SST
D12 Standard Hastelloy

Code Output

A 4-20 mA HART® protocol

Code Electrical Connection

2B Terminal Box, M20

Code Options

A1 Shut-off Plug
C1 Calibration Data Sheet
L0 Neobee Oil Fill
L1 Inert Oil Fill
Q4 Calibration Certificate

Q8 Material traceability certificate per EN 10204-3.1B
Q31 Certificate of Compliance according to EN10204-2.1
Q32 Test Report according to EN10204-2.2

Typical Model Number: 1810 A 2 2 D11 A 2B A1

Reference Manual

00809-0100-4020, Rev BA

September 2002

A-6

Reference Manual

00809-0100-4020, Rev BA
September 2002

Model 1810

Rosemount and the Rosemount logotype are registered trademarks of Rosemount Inc.
PlantWeb is a mark of one of the Emerson Process Management companies.
All other marks are the property of their respective owners.
HART is a registered trademark of the HART Communication Foundations.
Foundation is a trademark of the Fieldbus Foundation.
Hastelloy and Hastelloy C are registered trademarks of Haynes International.
PASVE is a trademark of the Satron Instruments Inc.
Monel is a registered trademark of International Nickel Co.
Cover photo: 1810-1810h0101.tif

Emerson Process Management

Rosemount Inc.

8200 Market Boulevard
Chanhassen, MN 55317 USA
T (U.S.) 1-800-999-9307
T (International) [phone]
F [phone]

www.rosemount.com

Fisher-Rosemount Oy Finland

Pakkalankuja 6
FIN 01510 Vantaa
Finland
T (358) 201 111 200
F (358) 201 111 250

Fisher-Rosemount Singapore Pte, Ltd.

1 Pandan Cresent
Singapore 128461
T (65) 777-8211
F (65) 777-0947

¢00809-0100-4020b¤

© 2002 Rosemount Inc. All rights reserved.