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Rosemount 1151DP, 1151HP, 1151GP, 1151AP, 1151LT Reference Manual

Reference Manual
00809-0100-4360, Rev BA August 2008
Rosemount 1151 Pressure Transmitter
www.rosemount.com
Reference Manual
NOTICE
00809-0100-4360, Rev BA August 2008
Rosemount 1151
Rosemount 1151 Pressure Transmitter
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.
For technical assistance, contacts are listed below:
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 8211
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 Process Management 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 Emerson Process Management Sales Representative.
www.rosemount.com
Reference Manual
00809-0100-4360, Rev BA August 2008

Table of Contents

Rosemount 1151
SECTION 1 Introduction
SECTION 2 Installation
Using This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Models Covered . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
General Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Transmitter Access Requirements. . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Mechanical Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Mounting Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Mounting Requirements (for Steam, Liquid, Gas) . . . . . . . . . . . . . 2-8
Process Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Mounting Brackets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Electrical Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Conduit Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
Hazardous Locations Certifications . . . . . . . . . . . . . . . . . . . . . . . 2-17
Environmental Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Liquid Level Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Closed Vessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Installation Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
Mounting Brackets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
Analog Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
LCD Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
Terminal Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24
SECTION 3 Configuration (Smart Only)
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Commissioning the Transmitter on the Bench. . . . . . . . . . . . . . . . 3-1
Setting Hardware Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Commissioning with a HART-Based Communicator . . . . . . . . . . . 3-3
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Bench Hook-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Field Hook-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Hart Communicator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Testing the Equipment and the Loop . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Common Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Configure the Analog Output Parameters . . . . . . . . . . . . . . . . . . . 3-7
Reranging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Advanced Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
Multidrop Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
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Reference Manual
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August 2008
SECTION 4 Operation and Maintenance
SECTION 5 Troubleshooting
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Smart Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Calibration Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Calibrate the Sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Digital to Analog Converter Trim . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Analog Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
Calibration Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
Quick Calibration Procedure (for E and G Electronics) . . . . . . . . . 4-9
Quick Calibration Procedure (For L and M Electronics) . . . . . . . . . 4-9
Data Flow with Calibration Options . . . . . . . . . . . . . . . . . . . . . . . 4-11
Span Adjustment Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Zero Adjustment Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Zero and Span Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
Elevated or Suppressed Zeros . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
Linearity Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
Damping Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
Static Pressure Span Correction Factor . . . . . . . . . . . . . . . . . . . . 4-16
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Smart Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Disassembly Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Reassembly Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Optional Plug-in Meters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
Sensor Module Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
Analog Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
Hardware Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
Transmitter Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12
Process Sensor Body Removal . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13
Reassembly Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15
Backup Ring and O-ring Installation . . . . . . . . . . . . . . . . . . . . . . . 5-16
Optional Plug-in Meters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18
SECTION 6 Retrofitting the Rosemount 1151 Transmitter
TOC-2
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Retrofitting Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Removing the Analog Electronics Assembly . . . . . . . . . . . . . . . . . . . . 6-2
Installing the Smart Retrofit Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
Characterization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12
Before Characterizing the Transmitter . . . . . . . . . . . . . . . . . . . . . 6-13
Characterizing with a HART Communicator. . . . . . . . . . . . . . . . . 6-14
Reference Manual
00809-0100-4360, Rev BA August 2008
Rosemount 1151
APPENDIX A Reference Information
APPENDIX B Product Certifications
Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Functional Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8
Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8
Process Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8
1151 Process Wetted Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8
1151LT Process Wetted Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-9
Non-wetted Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-9
Dimensional Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-11
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-16
1151 Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-22
1151LT Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-30
Display Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-34
Approved Manufacturing Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
European Directive Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Hazardous Locations Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
North American Certifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
European Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
Australian Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
Combination Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-4
Approval Drawings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4
APPENDIX C Glossary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1 to C-2
Index Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Index-1 to Index-2
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Rosemount 1151
Reference Manual
00809-0100-4360, Rev BA
August 2008
TOC-4
Reference Manual
00809-0100-4360, Rev BA August 2008
Rosemount 1151

Section 1 Introduction

Using This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-1
Models Covered . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-2
USING THIS MANUAL This manual provides information on installation, operation, and maintenance
of Rosemount 1151 Pressure Transmitters. This manual is organized into the following sections:
Section 2–Installation
This section provides mechanical and electrical installation instructions.
Section 3–Configuration
This section contains commissioning, output check, basic setup, LCD Display configuration, detailed setup, diagnostic and services, and advanced functions.
Section 4–Operation and Maintenance
This section contains calibration and trim procedures.
Section 5–Troubleshooting
This section provides troubleshooting techniques for the most common operating problems.
Section 6–Retrofitting the Rosemount 1151 Transmitter
This section describes how the Rosemount Smart Retrofit Kit can be used to retrofit a Rosemount 1151AP, DP, GP, HP, or LT transmitter with 4-20 mA linear or square root output.
Appendix A–Reference Information
This appendix supplies reference and specification data, as well as ordering information and spare parts tables.
Appendix B–Product Certifications
This appendix contains European directive information, Hazardous Location Certifications, and approval drawings.
Appendix C–Glossary
This section provides brief definitions of the terms used in this manual.
Index
This section provides a comprehensive index.
www.rosemount.com
Reference Manual
00809-0100-4360, Rev BA
Rosemount 1151
August 2008
MODELS COVERED This manual provides basic installation, commissioning, and troubleshooting
information for the following Rosemount 1151 Pressure Transmitters:
Rosemount 1151DP—Differential Pressure Transmitter
Measures differential pressure up to 1,000 psi (6895 kPa).
Rosemount 1151HP—Differential Pressure Transmitter for High Line Pressures
Provides high line pressure up to 300 psi (2068 kPa).
Rosemount 1151GP—Gage Pressure Transmitter
Measures gage pressure up to 6,000 psi (41369 kPa).
Rosemount 1151AP—Absolute Pressure Transmitter
Measures absolute pressure up to 1,000 psi (6895 kPa).
Rosemount 1151LT—Flange-Mounted Liquid Level Transmitter
Provides precise level and specific gravity measurements up to 2,770 inH2O (690 kPa) for a wide variety of tank configurations.
1-2
Reference Manual
00809-0100-4360, Rev BA August 2008
Rosemount 1151

Section 2 Installation

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-1
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-2
General Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-4
Mechanical Considerations . . . . . . . . . . . . . . . . . . . . . . . . page 2-6
Mounting Considerations . . . . . . . . . . . . . . . . . . . . . . . . . page 2-8
Electrical Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-14
Liquid Level Measurement . . . . . . . . . . . . . . . . . . . . . . . . . page 2-18
Installation Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-21
OVERVIEW This section is designed to guide you through a successful Rosemount 1151
installation. This section contains an installation flow chart; safety messages; general, mechanical, mounting, and electrical installation information; as well as installation guidance for optional parts. Dimensional drawings for each Rosemount 1151 variation and mounting configuration are included.
www.rosemount.com
Rosemount 1151
No
No Smart Analog
B
Yes
Yes
A
Yes
A
A
No
Check Jumper
or Switches
Wire
Transmitte
Power
Transmitter
Zero
Transmitter
DONE
Repeat Steps
until
Calibrated
Turn Span Screw
above or below Desired Output by Value in Last Step
Mount
Transmitter
Press Both Zero
and Span Button
Simultaneously
Set Units
Set
Range Points
Set
Output Type
Set
Damping
Apply Pressure
Refer to
Section 4
Troubleshooting
Apply Zero Point
Pressure and
Press Zero Button
Apply Span Point
Pressure and Press
Span Button
CONFIGURE
Within
Specification?
VERIFY
START HERE
CALIBRATE
Analog
or
Smart?
Using a
communicator?
FIELD
INSTALL
ADJUST ANALOG
ZERO/SPAN
B
B
Check for Leaks
(Process Connections)
No
No Smart Analog
B
Yes
Yes
A
Yes
A
A
No
Check Jumper
or Switches
Wire
Transmitte
Power
Transmitter
Zero
Transmitter
DONE
Repeat Steps
until
Calibrated
Turn Span Screw
above or below Desired Output by Value in Last Step
Mount
Transmitter
Press Both Zero
and Span Button
Simultaneously
Set Units
Set
Range Points
Set
Output Type
Set
Damping
Apply Pressure
Refer to
Section 4
Troubleshooting
Apply Zero Point
Pressure and
Press Zero Button
Apply Span Point
Pressure and Press
Span Button
CONFIGURE VERIFY
START HERE
CALIBRATE
Analog
or
Smart?
Bench
Calibration?
Using a
communicator?
FIELD
INSTALL
ADJUST ANALOG
ZERO/SPAN
B
B
Check for Leaks
(Process Connections)
No
No Smart Analog
B
Yes
Yes
A
Yes
A
A
No
Check Jumper
or Switches
Wire
Transmitter
Power
Transmitter
Zero
Transmitter
DONE
Divide
Difference
by 5
Repeat Steps
until
Calibrated
Turn Span Screw
above or below Desired Output by Value in Last Step
Mount
Transmitter
Press Both Zero
and Span Button
Simultaneously
Set Units
Set
Range Points
Set
Output Type
Set
Damping
Apply Pressure
Refer to
Section 4
Troubleshooting
Apply Zero Point
Pressure and
Press Zero Button
Apply Span Point
Pressure and Press
Span Button
CONFIGURE VERIFY
START HERE
CALIBRATE
Analog
or
Smart?
Using a
communicator?
FIELD
INSTALL
ADJUST ANALOG
ZERO/SPAN
B
B
Subtract Actual
Output from Desired
Output
Apply
20 mA-point
Pressure
Apply 4 mA-point
Pressure and Turn
Zero Screw to Output
4 mA
Check for Leaks
(Process Connections)
Figure 2-1. Rosemount 1151 Installation Flowchart.
Reference Manual
00809-0100-4360, Rev BA
August 2008
SAFETY MESSAGES
Warnings ( ) Procedures and instructions in this section that raise potential safety issues
are indicated by a warning symbol ( ). Refer to the following warning messages before performing an operation preceded by this symbol.
2-2
Reference Manual
Failure to install proper flange adapter O-rings may cause process leaks, which can result in death or serious injury. The two flange adapters are distinguished by unique O-ring grooves.
Only use the O-ring that is designed for its specific flange adapter, as shown below.
ROSEMOUNT 3051S / 3051 / 2051 / 3001 / 3095 / 2024
ROSEMOUNT 1151
Flange Adapter
O-ring
Flange Adapter
O-ring
PTFE Based
Elastomer
PTFE
Elastomer
00809-0100-4360, Rev BA August 2008
Rosemount 1151
• Explosions can result in death or serious injury. Before connecting a communicator in an explosive atmosphere, make sure the instruments in the loop are installed in accordance with intrinsically safe or nonincendive field wiring practice.
• Process leaks can cause death or serious injury. Install and tighten all four flange bolts before applying pressure, or process leakage may result. Attempting to remove the flange bolts while the transmitter is in service may cause process fluid leaks.
• All explosion-proof, flameproof, and dust-ignition-proof installations require insertion of conduit plugs in all unused openings with a minimum of 40 ft-lb (54 N-m) of torque. This will maintain five full threads of engagement.
• When adding a meter option to a Rosemount 1151 with an Option Code R1 terminal block, make sure to change to cemented meter covers with a glass window. Make sure a sticker is located inside the cover that indicates a “cemented cover.” This cover is required to maintain explosion-proof approval.
• Explosions can cause death or serious injury. Do not remove the instrument cover in explosive atmospheres when the circuit is alive.
• Explosions can cause death or serious injury. To meet hazardous location requirements, any transmitter with a tag specifying Option Codes I5, I1, N1, I8, I7, or N7 requires an intrinsically safe analog display (Part Nos. 01151-2614-0004 through
0009) or an LCD Display (Part Nos. 01151-1300-1000,01151-1300-1001).
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Rosemount 1151
Reference Manual
00809-0100-4360, Rev BA
August 2008
GENERAL CONSIDERATIONS
Transmitter Access Requirements
The accuracy of a flow, pressure, or level measurement depends on proper installation of the transmitter and impulse piping. The piping between the process and transmitter must accurately transmit process pressure to the transmitter. Mount the transmitter close to the process and use a minimum of piping to achieve best accuracy. However, keep in mind the need for easy access, safety of personnel, practical field calibration, and a suitable transmitter environment.
In general, install the transmitter so as to minimize vibration, shock, and temperature fluctuations.
Installations in food, beverage, and pharmaceutical processes may require sanitary seals and fittings. Regulations may dictate special installation requirements to maintain sanitation and cleanability. See www.emersonprocess.com for more information about sanitary pressure instruments.
When choosing an installation location and position, take into account the need for access to the transmitter.
Process Flange Orientation
Orient the process flanges to enable process connections to be made. For safety reasons, orient the drain/vent valves so that process fluid is directed down and away from technicians when the valves are used. This can be accomplished by pointing the hole in the outside valve body downward and away.
Housing Rotation
Do not rotate the transmitter housing more than 90 degrees without disconnecting the header board. Exceeding 90 degrees rotation will damage the internal sensor module wiring.
The electronics housing is designed to be rotated up to 90 degrees in order to provide field access to the two housing compartments. (If rotating the housing more than 90 degrees is necessary, follow the transmitter disassembly procedures in Section 5: Troubleshooting.) To rotate the housing up to 90 degrees, loosen the housing lock nut and turn the housing not more than 90 degrees.
NOTE
Seal module threads with Loctite (see Connecting the Electrical Housing to the Sensor on page 5-7.)
Terminal Side of Electronics Housing
The terminal side is marked on the nameplate located on the side of the transmitter. Mount the transmitter so that the terminal side of the housing is accessible by providing:
3
/4-inch clearance for cover removal with no meter
•A
• A 3-inch clearance for cover removal with a meter installed
®
222 before retightening housing lock nut
2-4
Reference Manual
00809-0100-4360, Rev BA August 2008
Rosemount 1151
If practical, provide approximately 6 inches clearance so that a meter may be installed later.
Circuit Side of Electronics Housing
The circuit compartment should not routinely need to be opened when the unit is in service. However, provide 6 inches clearance, if possible, to allow access to the integral zero and span buttons or for on-site maintenance. The circuit side of the housing is marked on the nameplate located on the side of the transmitter.
Exterior of Electronics Housing
The Rosemount 1151 Smart Pressure Transmitter uses the same housing as the Rosemount 1151 Analog. For this reason, integral span and zero screws—non-functional on the Rosemount 1151 Smart Pressure Transmitter—are located under the nameplate on the side of the transmitter.
2-5
Rosemount 1151
Range
Flange Distance “A”
Center to Center
inches mm
3, 4, 5 2.125 54
6, 7 2.188 56
8 2.250 57
9 2.281 58
0 2.328 59
½–14 NPT
Conduit
Connection
(2 Places)
Meter
Housing
Terminal Connections
This Side
¼–18 NPT on
Flanges for Pressure
Connection without
Flange Adapters
½–14 NPT on
Flange
Adapters
A
(See Table)
4.5 (114) Max.
7.5 (191) Max.
with Optional Meter
0.75 (19) Clearance for Cover Removal (Typical)
Transmitter Circuitry This Side
1.625 (41)
Blank Flange Used on AP and GP Transmitters
Flange
Adapter
4.5 (114)
3.375 (86)
Flanges Can Be Rotated
3.69 (94)
4.5 (114) Max.
Permanent Tag (Optional)
9.0 (229) Max.
Nameplate
Wired-on
Tag
(Standard)
Drain/Vent
Valve
¼–18 NPT for
Side Drain/Vent
(Optional Top
or Bottom)
NOTE Dimensions are in inches (millimeters).
Figure 2-2. Rosemount 1151AP, DP, GP, and HP Dimensional Drawings.
MECHANICAL CONSIDERATIONS
Dimensional Drawings
Reference Manual
00809-0100-4360, Rev BA
August 2008
2-6
Reference Manual
C
B
DIAPHRAGM ASSEMBLY
AND MOUNTING FLANGE
NOTE Dimensions are in inches (millimeters).
Permanent Tag
(optional)
11.38 (289) Max. Serrated Face
Gasket Surface
E
D
A
Wired-on Tag
(standard)
Flange
Adapter
2-, 4-, or 6-in. (51, 102, or 152) Extension
4.5 (114) Max.
4.45 (113) Max.
Flushing
Connection
1
(25)
F
G
E
OPTIONAL FLUSHING
CONNECTION RING
(LOWER HOUSING)
Meter
Housing
Terminal Connections This Side
Nameplate (Remove for Span and Zero Adjust)
Transmitter Circuitry This Side
½–14 NPT for Conduit Connection (2 places)
0.75 (19) Clearance for Cover Removal (typical)
½–14 NPT on Flange
Adapters
¼–18 NPT on Flanges for Pressure Connection without the Use of Flange Adapters
4.5 (114) Max.
7.5 (190.5) Max. with
Optional
Meter
Figure 2-3. Rosemount 1151LT Dimensional Drawing.
00809-0100-4360, Rev BA August 2008
Rosemount 1151
Table 2-1. Rosemount 1151LT Dimensional Specifications
Pipe Size
3 (76)
4 (102)
3 (76)
4 (102)
3 (76)
DN 50 26 mm 125 mm 165 mm 4 18 mm NA 95 mm 74 mm 55 mm
DN 80
DN 100
DN 100 26 mm 180 mm 220 mm 8 18 mm 89 mm 173 mm 103 mm 103 mm
Class
ANSI 150 2 (51)
ANSI 300 2 (51)
ANSI 600 2 (51)
DIN
PN10-40
DIN
PN 25/40
DIN
PN 10/16
(1) Tolerances are 0.040 (1.02), –0.020 (0.51).
Thickness A
Flange
1.12 (28)
1.31 (33)
1.31 (33)
1.25 (32)
1.50 (38)
1.62 (41)
1.12 (28)
1.37 (35)
30 mm 30 mm
Bolt Circle
Diameter B
4.75 (121)
6.0 (152)
7.5 (190)
5.0 (127)
6.62 (168)
7.88 (200)
5.0 (127)
6.62 (168)
160 mm 190 mm
Outside
Diameter C
6.0 (152)
7.5 (190)
9.0 (228)
6.5 (165)
8.25 (209)
10.0 (254)
6.5 (165)
6.62 (168)
200 mm 235 mm
No. of
Bolts
4 4 8
8 8 8
8 8
8 8
Bolt Hole Diameter
0.75 (19)
0.75 (19)
0.75 (19)
0.75 (19)
0.88 (22)
0.88 (22)
0.75 (19)
0.88 (22)NA2.58 (65)
18 mm 22 mm
Exten.
(1)
Diam. D
NA
2.58 (65)
3.5 (89)
NA
2.58 (65)
3.5 (89)
65 mm 89 mm
O.D.
Gask. Surf. E
3.75 (95)
5.0 (127)
6.81 (173)
3.75 (95)
5.0 (127)
6.81 (173)
3.75 (95)
5.0 (127)
127 mm 173 mm
Lower Housing
Xmtr
Side F
2.9 (74)
3.11 (79)
4.06 (103)
2.9 (74)
3.11 (79)
4.06 (103)
2.9 (74)
3.11 (79)
79 mm
103 mm
Proc.
Side G
2.16 (55)
3.11 (79)
4.06 (103)
2.16 (55)
3.11 (79)
4.06 (103)
2.16 (55)
3.11 (79)
79 mm
103 mm
2-7
Rosemount 1151
Reference Manual
00809-0100-4360, Rev BA
August 2008
MOUNTING CONSIDERATIONS
Mounting Requirements (for Steam, Liquid, Gas)
The Rosemount 1151 Pressure Transmitter weighs 12 lb. (5.4 kg) without a meter and 15 lb. (6.8 kg) with a meter. This weight must be securely supported. The transmitter is calibrated in an upright position at the factory. If this orientation is changed during mounting, the zero point will shift by an amount equivalent to the liquid head caused by the mounting position. For Smart Transmitters, follow “Because a zero trim must be zero-based, it generally should not be used with Rosemount 1151 Smart Absolute Pressure Transmitters. Absolute pressure transmitters reference absolute zero. To correct mounting position effects on a Rosemount 1151 Smart Absolute Pressure Transmitter, perform a low trim within the full sensor trim function. The low trim function provides a “zero” correction similar to the zero trim function but it does not require the input to be zero based.” on page 4-5 to correct this shift. For Analog Transmitters, follow “Zero and Span Adjustment” on page 4-15 to correct this shift.
NOTE
Do not plug the low side with a solid plug. Plugging the low side will cause an output shift.
The following information applies to steam, liquid, and gas installations.
Taps
Tap placement is dependent on the type of process being measured, and on whether the transmitter has side drain/vent valves:
• For liquid flow measurement, place taps to the side of the line to prevent sediment deposits, and mount the transmitter beside or below these taps so gases can vent into the process line and away from the transmitter.
• For gas flow measurement, place taps in the top or side of the line and mount the transmitter beside or above the taps so liquid will drain away from the transmitter.
• For steam flow measurement, place taps to the side of the line with the transmitter mounted below them to ensure that the impulse piping stays filled with condensate.
• For transmitters with side drain/vent valves, place taps to the side of the line.
2-8
See Figure 2-4 for a diagram of these arrangements.
Reference Manual
NOTE For steam service do not blow down impulse piping through transmitter. Flush lines with blocking valves closed and refill lines with water before resuming measurement.
Plugged Tee for Steam Service for Sealing Fluid
STEAM SERVICE
Sufficient
Length for
Cooling
Blocking
Valves
3-valve
Manifold
Flow
Vent/Drain
Valve
3-valve Manifold
GAS SERVICE
Flow
3-valve
Manifold
Drain/Vent
Valve
Flow
Optional
Side-mounted
Drain/Vent Valve
3-valve Manifold
Flow
Figure 2-4. Steam, Liquid, and Gas Service Installation Diagrams.
H
L
LIQUID SERVICE
H
H
H
L
L
L
00809-0100-4360, Rev BA August 2008
Rosemount 1151
2-9
Rosemount 1151
Reference Manual
00809-0100-4360, Rev BA
August 2008
Drain/Vent Va lves
Drain/vent valve orientation is also dependent on the process being measured:
• For liquid service, mount the side drain/vent valve upward to allow the gases to vent.
• For gas service, mount the drain/vent valve down to allow any accumulated liquid to drain.
To change the drain/vent valve orientation from top to bottom, rotate the process flange 180 degrees.
Impulse Piping
The piping between the process and the transmitter must accurately transfer the pressure in order to obtain accurate measurements. In this pressure transfer, there are five possible sources of error:
•Leaks
• Friction loss (particularly if purging is used)
• Trapped gas in a liquid line
• Liquid in a gas line
• Temperature-induced or other density variation between the legs
The best location for the transmitter in relation to the process pipe depends on the process itself. Consider the following general guidelines in determining transmitter location and placement of impulse piping:
• Keep impulse piping as short as possible.
• Slope the impulse piping at least 1 inch per foot (8 centimeters per meter) upward from the transmitter toward the process connection for liquid.
• Slope the impulse piping at least 1 inch per foot (8 centimeters per meter) downward from the transmitter toward the process connection for gas.
• Avoid high points in liquid lines and low points in gas lines.
• Make sure both impulse legs are the same temperature.
• Use impulse piping large enough to avoid friction effects and prevent blockage.
• Vent all gas from liquid piping legs.
• For steam service, fill impulse piping with water to prevent contact of live steam with the transmitter.
Steam or other elevated temperature processes can cause damage to the sensor. Do not allow the temperature inside the process flanges to exceed the transmitter limit of 220 °F (104 °C).
2-10
Reference Manual
Rosemount 3051/2024/3001/3095/2051
Rosemount 1151
Flange Adapter
Flange Adapter
O-ring
Unique O-ring
Grooves
O-ring
00809-0100-4360, Rev BA August 2008
• When using a sealing fluid, fill both piping legs to the same level.
• When purging is necessary, 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 process material out of direct contact with the sensor module and flanges.
• Prevent sediment deposits in the impulse piping.
• Keep the liquid head balanced on both legs of the impulse piping.
Process Connections Flange Adaptors:
Rosemount 1151
Figure 2-5. O-Rings.
Rosemount 1151AP, DP, GP, and HP process connections on the transmitter
1
flanges are
/4–18 NPT. Flange adapters are available with standard 1/2–14 NPT Class 2 connections. The flange adapters allow users to disconnect from the process by removing the flange adapter bolts. Use plant-approved lubricant or sealant when making the process connections. Figure 2-2 shows
1
the distance between pressure connections. This distance may be varied ±
/8
in. (3.2 mm) by rotating one or both of the flange adapters.
On open vessels, the low-side process flange is open to atmosphere and should be mounted with the threaded hole pointed down. On closed vessels, this connection is used for the dry or wet leg.
High-pressure-side process connections for the Rosemount 1151LT Transmitter are offered with 2-, 3-, or 4-in., Class 150, 300, or 600 flanges; DN 50 (PN 10-40), DN 80 (PN 25/40), or DN 100 (PN 10/16, 25/40). Low-pressure-side process connections for the Rosemount 1151LT Transmitter are offered with ¼–18 NPT on the flange, and ½–14 NPT on the adapter.
O-rings:
The two styles of Rosemount flange adapters (Rosemount 1151 and Rosemount 3051/2024/3001/3095/2051) each require a unique O-ring (see Figure 2-5). Use only the O-ring designed for the corresponding flange adaptor.
When compressed, PTFE O-rings tend to “cold flow,” which aids in their sealing capabilities.
2-11
Reference Manual
00809-0100-4360, Rev BA
Rosemount 1151
August 2008
NOTE
PTFE O-rings should be replaced if the flange adapter is removed.
Tightening the Seal:
To ensure a tight seal on the flange adapters or a three-valve manifold, first finger-tighten both bolts, then wrench-tighten the first bolt to approximately 29 ft.-lbs (39 N-m). Wrench-tighten the second bolt to approximately 29 ft.-lbs (39 N-m).
Mounting Brackets Optional mounting brackets permit mounting the transmitter to a wall, a panel,
or a 2-inch horizontal or vertical pipe. Figure 2-6 illustrates some typical configurations these mounting brackets.
Table 2-2. Mounting Brackets
Mounting Material
Pipe
Option Code
B1 X X X B3 X X X B4 X X X B6 X X X B7 X X X B9 X X X
Mount
Panel
Mount
CS
Bracket
SST
Bracket
CS
Bolts
SST Bolts
2-12
Reference Manual
3.87 (98)
3.75 (95)
1.65 (42)
2.62 (67)
4.97
(127)
2.81 (71)
2.625 (67)
5.625 (143)
2.625 (67)
2.625 (67)
1.65 (42)
3.87 (98)
4.5 (114)
1.40 (36)
Mounting Holes
0.375 Diameter (10)
3.75 (95)
2.81 (71)
2.125 (54)
2.81 (71)
8 (203)
NOTE Dimensions are in inches (millimeters).
1.62 (41)
5.625 (143)
Figure 2-6. Mounting Bracket Option Codes B1, B4, and B7.
1.40 (36)
1.40 (36)
2.81 Typ. (71)
Figure 2-8. Flat Mounting Bracket Option Codes B3, B6, and B9
Figure 2-7. Panel Mounting Bracket Option Codes B2, and B5
00809-0100-4360, Rev BA August 2008
Rosemount 1151
2-13
Rosemount 1151
Code V
min
V
max
R
min
R
max
RL at Supply Voltage (Vs)
S
(1)
(1) A minimum of 250 ohms is required for communication.
12 45 0 1650 RL = 43.5 (VS–12)
E
(2)
(2) For CSA Approvals (code E), V
max
= 42.4 V dc.
12 45 0 1650 RL = 50 (VS – 12)
G308501100 R
L
= 20 (VS – 30)
L 5 12 Low Power Minimum Load Impedance:
100 k
M814
R
max
R
L
R
min
V
min
V
S
V
max
Operating
Region
Reference Manual
00809-0100-4360, Rev BA
August 2008
ELECTRICAL CONSIDERATIONS
NOTE
Make sure all electrical installation is in accordance with national and local code requirements.
Power Supply The DC power supply should provide power with less than 2% ripple. The
total load is the sum of the resistance of the signal leads and the load resistance of the controller, indicator, and related pieces. The resistance of intrinsic safety barriers, if used, must be included. Figure 2-7 illustrates power supply load limitations for the transmitter.
Figure 2-7. Power Supply Load Limitations.
Conduit Installation
2-14
If all connections are not sealed, excess moisture accumulation can damage the transmitter. Make sure to 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 or the transmitter housing.
Recommended conduit connections are shown in Figure 2-8.
Reference Manual
Sealing
Compound
Conduit
Lines
CORRECT CORRECT INCORRECT
Possible
Conduit Line
Positions
Sealing
Compound
Possible
Conduit Line
Positions
00809-0100-4360, Rev BA August 2008
Figure 2-8. Conduit Installation Diagrams.
Wiring
Rosemount 1151
Do not connect the power signal wiring to the test terminals. Voltage may burn out the reverse-polarity protection diode in the test connection. If the test diode is destroyed, then the transmitter can still be operated without local indication by jumping the test terminals.
High voltage (greater than 50 V and greater than 0.005 amperes) can cause damage to the transmitter. Do not apply high voltage to the test terminals.
The signal terminals and test terminals are located in a compartment of the electronics housing that is separate from the transmitter electronics. The nameplate on the side of the transmitter indicates the locations of both of these compartments. The upper pair of terminals are the signal terminals and the lower pair are the test terminals. The test terminals have the same 4–20 mA output as the signal terminals and are only for use with the optional integral meter or for testing.
NOTE
An alternate location to connect an ammeter is on the set of terminals labeled “TEST.” Connect the positive lead of the ammeter to the positive test terminal, and the negative lead of the ammeter to the negative test terminal.
To make connections, remove the cover on the side marked “Terminal” on the nameplate. All power to the transmitter is supplied over the signal wiring. Connect the lead that originates at the positive side of the power supply to the terminal marked “+” and the lead that originates at the negative side of the power supply to the terminal marked “–”. No additional wiring is required.
Do not run signal wiring in conduit or open trays with power wiring or near heavy electrical equipment.
For improved performance against EMI/RFI effects, refer to “Terminal Blocks” on page 2-24 for information on transient protection terminal blocks.
2-15
Reference Manual
00809-0100-4360, Rev BA
Rosemount 1151
Shielded cable should be used for best results in electrically noisy environments. Refer to “Grounding” on page 2-16 for more details.
NOTE
When conduit lines are used, signal wiring need not be shielded, but twisted pairs should be used for best results. Wiring must be 24 AWG or larger and not exceed 5,000 feet (1500 meters).
NOTE
A minimum loop resistance of 250 hand-held HART-based communicator. With 250 transmitter requires a minimum of 17 volts to output 20 mA. If a single power supply is used to power more than one Rosemount 1151 Smart transmitter, the power supply used, and circuitry common to the transmitters should not have more than 20 of impedance at 1200 Hz.
is required to communicate with a
of loop resistance, the
August 2008
Grounding Use the following techniques to properly ground the transmitter signal wiring
and case:
Signal Wiring
Do not run signal wiring in conduit or open trays with power wiring or near heavy electrical equipment. It is important that the instrument cable shield be:
• Trimmed close and insulated from touching the transmitter housing
• Connected to the next shield if cable is routed through a junction box
• Connected to a good earth ground at the power supply end
Signal wiring may be grounded at any one point on the signal loop or may be left ungrounded. The negative terminal of the power supply is a recommended grounding point.
Transmitter Case
The transmitter case must be grounded in accordance with national and local electrical codes. The most effective transmitter case grounding method is a direct internal connection to earth ground with minimal impedance. The transmitter case may also be grounded through the process or conduit connections.
Internal Ground Connection: Inside the field terminals side of the
electronics housing is the internal ground connection screw. This screw is identified by a ground symbol: .
NOTE
Grounding the transmitter case via threaded conduit connection may not provide sufficient ground continuity.
2-16
NOTE
The transient protection terminal block (page 2-25) does not provide transient protection unless the transmitter case is properly grounded. Use the preceding guidelines to ground the transmitter case. Do not run the transient protection ground wire with signal wiring as the ground wire may carry excessive current if a lightning strike occurs.
Reference Manual
PT
LOAD
PS
+
–
Ungrounded System
Impressed Voltage: 12 to 22 mV
p-p
32 kHz
Effect: 0.01% of span, max.
PT
LOAD
PS
+
–
PT
LOAD
PS
+
–
PT
LOAD
PS
+
–
Ground Between Negative Side of Power Supply and Load
Impressed Voltage: 35 to 60 mVp-p
32 kHz
Effect: 0.03% of span, max.
Ground Between Positive Side of Transmitter and Power Supply
Impressed Voltage: 35 to 60 mVp-p
32 kHz
Effect: 0.03% of span, max.
Ground Between Negative Terminal of Transmitter and Load
Impressed Voltage: 500 to 600 mVp-p
32 kHz
Effect: 0.27% of span, max.
*The effect caused by the impressed voltage on a computer with a sampling time of 100 microseconds using a 2 to 10 volt signal.
00809-0100-4360, Rev BA August 2008
Figure 2-9. Effects of Grounding on Accuracy for Fast Sample Computers.
Rosemount 1151
Grounding Effects
The capacitance sensing module requires alternating current to generate a capacitance signal. This alternating current is developed in an oscillator circuit with a frequency of approximately 32 kHz. This signal is capacitor-coupled to transmitter-case ground through the sensing module. Because of this coupling, a voltage may be imposed across the load, depending on the choice of grounding. See Figure 2-9.
Impressed voltage, which is seen as high frequency noise, will have no effect on most instruments. Computers with short sampling times in circuits will detect a significant noise signal, which should be filtered out by using a large capacitor (1 μF) or by using a 32 kHz LC filter across the load. Computers that are wired and grounded, as shown in Figure 2-9, are negligibly affected by this noise and do not need filtering.
2-17
Rosemount 1151
Reference Manual
00809-0100-4360, Rev BA
August 2008
Hazardous Locations Certifications
Environmental Requirements
LIQUID LEVEL MEASUREMENT
Open Vessels
The Rosemount 1151 was designed with an explosion-proof housing and circuitry suitable for intrinsically safe and nonincendive operation. Factory Mutual explosion-proof certification is standard for the Rosemount 1151 Transmitter. Individual transmitters are clearly marked with a tag indicating the approvals they carry. Transmitters must be installed in accordance with all applicable codes and standards to maintain these certified ratings. Refer to “Hazardous Locations Certifications” on page B-2 for information on these approvals.
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). Refer to Section A: Reference Information that lists the sensing element operating limits. Mount the transmitter so that it is not susceptible to vibration and mechanical shock and does not have external contact with corrosive materials.
Differential pressure transmitters used for liquid level applications measure hydrostatic pressure head. Liquid level and specific gravity of a liquid are factors in determining pressure head. This pressure is equal to the liquid height above the tap multiplied by the specific gravity of the liquid. Pressure head is independent of volume or vessel shape.
A pressure transmitter mounted near a tank bottom measures the pressure of the liquid above.
Make a connection to the high pressure side of the transmitter, and vent the low pressure side to the atmosphere. Pressure head equals the liquid’s specific gravity multiplied by the liquid height above the tap.
Zero range suppression is required if the transmitter lies below the zero point of the desired level range. Figure 2-10 shows a liquid level measurement example.
Closed Vessels Pressure above a liquid affects the pressure measured at the bottom of a
closed vessel. The liquid specific gravity multiplied by the liquid height plus the vessel pressure equals the pressure at the bottom of the vessel.
To measure true level, the vessel pressure must be subtracted from the vessel bottom pressure. To do this, make a pressure tap at the top of the vessel and connect this to the low side of the transmitter. Vessel pressure is then equally applied to both the high and low sides of the transmitter. The resulting differential pressure is proportional to liquid height multiplied by the liquid specific gravity.
2-18
Reference Manual
ZERO
SUPRESSION
mA dc
20
540
900
inH2O
4
Figure 2-10. Liquid Level Measurement Example.
Let X equal the vertical distance between the minimum and maximum measurable levels (500 in.). Let Y equal the vertical distance between the transmitter datum line and the minimum measurable level (100 in.). Let SG equal the specific gravity of the fluid (0.9). Let h equal the maximum head pressure to be measured in inches of water. Let e equal head pressure produced by Y expressed in inches of water. Let Range equal e to e + h. Then h = (X)(SG)
= 500 x 0.9 = 450 inH
2
O
e= (Y)(SG)
= 100 x 0.9 =90 inH
2
O
Range = 90 to 540 inH
2
O
T
Y
X
00809-0100-4360, Rev BA August 2008
Rosemount 1151
Dry Leg Condition
Low-side transmitter piping will remain empty if gas above the liquid does not condense. This is a dry leg condition. Range determination calculations are the same as those described for bottom-mounted transmitters in open vessels, as shown in Figure 2-10.
Wet Leg Condition
Condensation of the gas above the liquid slowly causes the low side of the transmitter piping to fill with liquid. The pipe is purposely filled with a convenient reference fluid to eliminate this potential error. This is a wet leg condition.
The reference fluid will exert a head pressure on the low side of the transmitter. Zero elevation of the range must then be made. See Figure 2-11.
2-19
Rosemount 1151
Figure 2-11. Bubbler Liquid Level Measurement Example.
mA dc
Let X equal the vertical distance between the minimum and maximum measurable levels (100 in.).
Let SG equal the specific gravity of the fluid (1.1). Let h equal the maximum head pressure to be measured in inches of water. Let Range equal zero to h. Then h = (X)(SG)
= 100 x 1.1 = 110 inH
2
O
Range = 0 to 110 inH
2
O
20
inH2O
0
4
110
T
AIR
X
Reference Manual
00809-0100-4360, Rev BA
August 2008
Bubbler System in Open Vessel
A bubbler system that has a top-mounted pressure transmitter can be used in open vessels. This system consists of an air supply, pressure regulator, constant flow meter, pressure transmitter, and a tube that extends down into the vessel.
Bubble air through the tube at a constant flow rate. The pressure required to maintain flow equals the liquid’s specific gravity multiplied by the vertical height of the liquid above the tube opening. Figure 2-11 shows a bubbler liquid level measurement example.
2-20
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