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00809-0100-4801, Rev HC
Rosemount™ 3051S Series Scalable
Pressure, Flow, and Level Solution
with HART® Protocol
Reference Manual
March2024
™
Page 2
Safety messages
WARNING
Read this manual before working with the product. For personal and system safety, and for optimum product
performance, ensure the contents are thoroughly understood before installing, using, or maintaining this product.
WARNING
Explosions could result in death or serious injury.
Do not remove the transmitter cover in explosive atmospheres when the circuit is live.
Fully engage both transmitter covers to meet explosion-proof requirements.
Before connecting a handheld communicator in an explosive atmosphere, ensure the instruments in the segment
are installed in accordance with intrinsically safe or non-incendive field wiring practices.
Verify the operating atmosphere of the transmitter is consistent with the appropriate hazardous locations
certifications.
WARNING
Electrical shock could cause death or serious injury.
Avoid contact with the leads and terminals.
WARNING
Process leaks could result in death or serious injury.
Install and tighten all four flange bolts before applying pressure.
Do not attempt to loosen or remove flange bolts while the transmitter is in service.
WARNING
Replacement equipment or spare parts not approved by Emerson for use as spare parts could reduce the pressure
retaining capabilities of the transmitter and may render the instrument dangerous.
Use only bolts supplied or sold by Emerson as spare parts.
WARNING
Physical access
Unauthorized personnel may potentially cause significant damage to and/or misconfiguration of end users’
equipment. This could be intentional or unintentional and needs to be protected against.
Physical security is an important part of any security program and fundamental in protecting your system. Restrict
physical access by unauthorized personnel to protect end users’ assets. This is true for all systems used within the
facility.
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NOTICE
Improper assembly of manifolds to traditional flange can damage SuperModule™ Platform.
For safe assembly of manifold to traditional flange, bolts must break back plane of flange web (also called bolt
hole) but must not contact sensor module housing.
SuperModule and electronics housing must have equivalent approval labeling in order to maintain hazardous
location approvals.
When upgrading, verify SuperModule and electronics housing certifications are equivalent. Differences in
temperature class ratings may exist, in which case the complete assembly takes the lowest of the individual
component temperature classes (for example, a T4/T5 rated electronics housing assembled to a T4 rated
SuperModule is a T4 rated transmitter.)
Severe changes in the electrical loop may inhibit HART® communication or the ability to reach alarm values.
Therefore, Emerson cannot absolutely warrant or guarantee that the correct failure alarm level (HIGH or LOW)
can be read by the host system at the time of annunciation.
NOTICE
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 Emerson.com/global.
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4
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Reference Manual Contents
00809-0100-4801 March2024
Contents
Chapter 1 Introduction...............................................................................................................................7
1.1 Models covered............................................................................................................................7
1.2 Product recycling/disposal......................................................................................................... 8
Chapter 2 Configuration............................................................................................................................ 9
2.1 Overview.......................................................................................................................................9
2.2 Commissioning on the bench.................................................................................................... 9
2.3 Field Communicator..................................................................................................................10
2.4 Field Communicator menu trees.............................................................................................12
2.5 Check output..............................................................................................................................25
2.6 Basic setup................................................................................................................................. 27
2.7 LCD display (Optional Order Code)......................................................................................... 32
2.8 Detailed setup............................................................................................................................33
2.9 Diagnostics and service............................................................................................................ 41
2.10 Advanced functions.................................................................................................................43
2.11 Multidrop communication .................................................................................................... 46
Chapter 3 Hardware Installation............................................................................................................ 49
3.1 Overview.....................................................................................................................................49
3.2 Considerations...........................................................................................................................49
3.3 Installation procedures............................................................................................................ 54
3.4 Flange bolt installation............................................................................................................. 64
3.5 Wiring the device.......................................................................................................................85
Chapter 4 Operation and maintenance................................................................................................. 95
4.1 Calibration for HART® Protocol................................................................................................95
4.2 Field upgrades......................................................................................................................... 108
Chapter 5 Troubleshooting.................................................................................................................... 109
5.1 Disassembly procedures........................................................................................................ 109
5.2 Reassembly procedures......................................................................................................... 112
Chapter 6 Safety Instrumented Systems (SIS).....................................................................................115
6.1 Rosemount 3051S safety certified identification................................................................ 115
6.2 Installation in SIS applications...............................................................................................115
6.3 Configuring in SIS applications............................................................................................. 116
6.4 Damping ..................................................................................................................................116
6.5 Alarm and saturation levels................................................................................................... 116
6.6 SIS Operation and maintenance........................................................................................... 118
6.7 Inspection.................................................................................................................................120
Chapter 7 Advanced HART Diagnostic Suite........................................................................................ 123
7.1 Advanced HART® Diagnostic Suite........................................................................................ 123
Appendix A Appendix A: Specifications and Reference Data............................................................... 163
A.1 Product Certifications.............................................................................................................163
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Contents Reference Manual
March2024 00809-0100-4801
A.2 Ordering Information, Specifications, and Drawings........................................................ 163
6 Emerson.com/RosemountRosemount 3051S
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Reference Manual Introduction
00809-0100-4801 March2024
1 Introduction
1.1 Models covered
The following transmitters and the Rosemount 300S Housing Kit are covered in this
manual:
The Rosemount 3051S provides a wide range of applications, and many of these different
applications have their own reference manuals. This manual covers the 3051S HART®,
Advanced Diagnostics, and Safety Instrumented Systems (SIS).
Table 1-1: Rosemount 3051S Coplanar™ Pressure Transmitter
Performance class Measurement type
Differential Gauge Absolute
Ultra X X X
Ultra for Flow X N/A N/A
Classic X X X
Table 1-2: Rosemount 3051S In-Line Pressure Transmitter
Performance class Measurement type
Differential Gauge Absolute
Ultra N/A X X
Classic N/A X X
Table 1-3: Rosemount 3051S Liquid Level Pressure Transmitter
Performance class Measurement type
Differential Gauge Absolute
Classic X X X
Table 1-4: Rosemount 3051S SIS Safety Certified Transmitter
Performance class Measurement type
Differential Gauge Absolute
Classic X X X
Table 1-5: Rosemount 3051S Transmitter with FOUNDATION™ Fieldbus Diagnostics
Transmitter
Performance class Measurement type
Differential Gauge Absolute
Ultra X X X
Ultra for Flow X N/A N/A
Classic X X X
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Introduction Reference Manual
March2024 00809-0100-4801
For information on other 3051S transmitters, refer to the following reference manuals:
• Rosemount 3051S Pressure Transmitter with FOUNDATION Fieldbus Protocol Reference
Manual
• Rosemount 3051S Wireless Series Reference Manual
• Rosemount 3051S Electronic Remote Sensor (ERS™) System Reference Manual
• Rosemount 3051S MultiVariable™ Transmitter Reference Manual
Rosemount 300S Scalable Housing Kits
Kits are available for all models of 3051S Pressure Transmitters.
1.2
Product recycling/disposal
Consider recycling equipment and packaging.
Dispose of the product and packaging in accordance with local and national legislation.
8 Emerson.com/RosemountRosemount 3051S
Page 9
Reference Manual Configuration
00809-0100-4801 March2024
2 Configuration
2.1 Overview
This section contains information on commissioning and tasks that should be performed
on the bench prior to installation.
Instructions for performing configuration functions are given for handheld communication
devices like the Field Communicator or asset management software like Emerson's
AMS Device Manager. For convenience, Field Communicator Fast Key sequences (where
supported) are labeled Fast Keys for each software function below the appropriate
headings.
2.1.1 Example software function
The Device Dashboard Fast Keys apply to Device Descriptor Revision 9 or newer. The HART
5 with Diagnostics Fast Keys apply to Device Descriptor Revision 1. The HART 7 Fast Keys
apply to Device Descriptor Revision 2. Contact Emerson or refer to previous reference
manuals for information on older revisions.
®
Device Dashboard Fast Keys
HART 5 with Diagnostics Fast Keys 1, 2, 3, etc.
HART 7 Fast Keys 1, 2, 3, etc.
2.2 Commissioning on the bench
Commissioning consists of testing the transmitter and verifying transmitter configuration
data. Rosemount™ 3051S Pressure Transmitters can be commissioned either before or after
installation. Commissioning the transmitter on the bench before installation using a Field
Communicator or AMS Device Manager ensures all transmitter components are in working
order.
Equipment required to commission on the bench includes a power supply, a milliamp
meter, and a Field Communicator or AMS Device Manager. Wire the equipment as
shown in Figure 2-1. Verify transmitter terminal voltage is between 10.5–42.4 Vdc. To
ensure successful communication, a resistance of at least 250 ohms must be present
between the Field Communicator loop connection and the power supply. Connect the
Field Communicator leads to the terminals labeled PWR/COMM on the terminal block.
(Connecting across the “TEST” terminals will prevent successful communication.)
Set all transmitter hardware adjustments during commissioning to avoid exposing the
transmitter electronics to the plant environment after installation. Refer to Wire the device.
When using a Field Communicator, any configuration changes made must be sent to
the transmitter by using the Send key. AMS Device Manager configuration changes are
implemented when the Apply button is selected.
1, 2, 3, etc.
2.2.1
Setting the loop to Manual
Whenever sending or requesting data that would disrupt the loop or change the output
of the transmitter, set the process application loop to Manual. The Field Communicator
or AMS Device Manager will prompt you to set the loop to manual when necessary.
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A
B
Configuration Reference Manual
March2024 00809-0100-4801
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.
2.2.2 Wiring diagrams
Benchhook-up
Connect the bench equipment as shown in Figure 2-1, and turn on the Field Communicator
or log into AMS Device Manager. The Field Communicator or AMS Device Manager will
search for a HART®-compatible device and indicate when the connection is made. If the
Field Communicator or AMS Device Manager fail to connect, it indicates that no device was
found. If this occurs, refer to Troubleshooting.
Fieldhook-up
Figure 2-1 illustrates wiring loops for a field hook-up with a Field Communicator or AMS
Device Manager. The Field Communicator or AMS Device Manager may be connected
at “PWR/COMM” on the transmitter terminal block, across the load resistor, or at any
termination point in the signal loop. Signal point may be grounded at any point or left
ungrounded.
Figure 2-1: Typical wiring (4–20mA)
A. Power supply
B. RL ≥ 250Ω
2.3
Field Communicator
For convenience, Field Communicator Fast Key sequences are labeled Fast Keys for each
software function below the appropriate headings. The Device Dashboard Fast Keys apply
to Device Descriptor Revision 9 or newer. The HART® 5 with Diagnostics Fast Keys apply to
Device Descriptor Revision 1. The HART 7 Fast Keys apply to Device Descriptor Revision 2.
10 Emerson.com/RosemountRosemount 3051S
Page 11
SAVE
3051S DIAG: HDT 93207
Online
1 Overview
2 Configure
3 Service Tools
Reference Manual Configuration
00809-0100-4801 March2024
2.3.1 Field Communicator user interface
Figure 2-2: HART 5 with Diagnostics Dashboard
Note
The corresponding menu tree is shown in Figure 2-3. The Fast Key sequence can be viewed
on Device Dashboard Fast Key sequence.
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Home
Overview
1 Device Status
2 Comm Status
3 Pressure
4 PV Loop Current
5 Pressure URV
6 Pressure LRV
7 Device Information
Device Information
1 Identification
2 Revisions
3 Material of Construction
4 RS Material of Construction
5 Analog Alarm
6 Security
Identification
1 Tag
2 Model
3 Transmitter S/N
4 Date
5 Description
6 Message
7 Model Number 1
8 Model Number 2
9 Model Number 3
Revisions
1 Universal Revision
2 Field Device Revision
3 Software Revision
4 Hardware Revision
5 Device Driver Revision
Materials of Construction
1 Module Configuration
2 Sensor Range
3 Upper Sensor Limit
4 Lower Sensor Limit
5 Isolator Materials
6 Fill Fluid
7 Process Connection
8 Process Connection Material
9 O-Ring Material
10 Drain Vent Material
RS Material of Construction
1 # of Remote Seals
2 RS Seal Type
3 RS Fill Fluid
4 RS Isolator Material
Analog Alarm
1 Alarm Direction
2 High Alarm
3 High Saturation
4 Low Saturation
5 Low Alarm
Security
1 Write Protect Status
2 Local Zero/Span
1 Overview
2 Configure
3 Service Tools
Configuration Reference Manual
March2024 00809-0100-4801
2.4 Field Communicator menu trees
Device Dashboard menu tree
Figure 2-3: Overview
12 Emerson.com/RosemountRosemount 3051S
Page 13
Home
1 Overview
2 Configure
3 Service Tools
1 Pressure Alert
2 Temperature Alert
Alert Setup
Configure
1 Guided Setup
2 Manual Setup
3 Alert Setup
Pressure Alert
1 Alert Mode
2 High Alert Value
3 Low Alert Value
Temperature Alert
1 Alert Mode
2 High Alert Value
3 Low Alert Value
Guided Setup
1 Basic Setup
2 Zero
3 Configure Display
4 Variable Mapping
5 Configure Alarm and Sat levels
6 Process Alerts
7 Scaled Variable
Manual Setup
1 Basic Setup
2 Scaled Variable
3 Display
4 HART
5 Device Information
6 Materials of Construction
7 Security
Basic Setup
1 Tag
2 Unit
3 Range Values
4 Transfer Function
5 Pressure Damping
6 Module Temperature Units
7 Configure Alarm and Sat Levels
8 Range by Applying Pressure
Scaled Variable
1 SV Data Points
2 SV Units
3 SV Transfer Function
4 SV Linear Offset
5 SV Config
Display
1 Pressure
2 Scaled Variable
3 Module Temperature
4 Percent of Range
HART
1 Variable Mapping
2 Polling Address
3 Burst Mode
4 Burst Option
Device Information
1 Tag
2 Model
3 Transmitter S/N
4 Date
5 Description
6 Message
7 Model Number 1
8 Model Number 2
9 Model Number 3
Range Values
1 Pressure URV
2 Pressure LRV
Variable Mapping
1 Primary Variable
2 Secondary Variable
3 Third Variable
Materials of Construction
1 Process Connection
2 Process Connection Material
3 Drain Vent Material
4 # of Remote Seals
5 RS Seal Type
6 RS Fill Fluid
7 RS Isolator Material
Security
1 Write Protect Status
2 Local Zero/Span
Burst Option
PV
% range/current
Dyn Vars/current
Tag, Description, Message, Date, Pressure Units,
Temperature Units, Transfer Function, URV, LRV
Reference Manual Configuration
00809-0100-4801 March2024
Figure 2-4: Configure
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Home
1 Overview
2 Configure
3 Service Tools
Service Tools
1 Device Alerts
2 Variables
3 Trends
4 Routine Maintenance
5 Simulate
Variables
1 Pressure
2 Scaled Variable
3 Module Temperature
Trends
1 Pressure
2 Scaled Variable
3 Module Temperature
Routine Maintenance
1 Pressure Calibration
2 Analog Output Calibration
3 Recall Factory Calibration
Simulate
1 Loop Test
Device Alerts
1 Refresh Alerts
2 Configuration Changed
Only Active Alerts show up
Trend Graph
Pressure Calibration
1 Upper Sensor Trim
2 Lower Sensor Trim
3 Zero
4 Last Calibration Points
5 Sensor Limits
Last Calibration Points
1 Upper Calibration Point
2 Lower Calibration Point
Sensor Limits
1 Upper
2 Lower
3 Minimum Span
Configuration Reference Manual
March2024 00809-0100-4801
Figure 2-5: Service Tools
14 Emerson.com/RosemountRosemount 3051S
Page 15
Home
1 Overview
2 Configure
3 Service Tools
Overview
1 Status
2 Primary Purpose Variable
3 Shortcuts
Status
1 Device Status: Good
2 Communications: Polled
Shortcuts
1 Calibration
2 SPM Status
3 All Variables
4 View Logs
5 Device Information
Calibration
1 Pressure
2 Analog Output
3 Restore Factory Calibration
Pressure
1 Sensor Calibration
2 Range Values
3 Current Measurement
4 Last Calibration Points
5 Sensor Limits
Primary Purpose Variable
1 Pressure
2 Analog Output
SPM Status
1 Detection Status
2 Statistical Values
3 Time Stamp
4 Trends
Analog Output
1 Analog Output
2 Percent of Range
3 Analog Calibration
Detection Status
1 SPM Status
2 SPM Status (cont.)
3 Standard Deviation Sensitivity*
4 Mean Sensitivity**
*If CV is selected, "Coefficient of Variation Sensitivity"
**If CV is selected, this is not shown
Statistical Values
1 Standard Deviation*
2 Mean
*Or Coefficient of Variation
Time Stamp
1 Time Since Detection
2 Total Operating Time
Trends
1 Standard Deviation*
2 Mean
*If CV is selected, "Coefficient of Variation"
All Variables
1 Primary Variable
2 2nd Variable
3 3rd Variable
4 4th Variable
5 Other Variables
Primary Variable
1 <Mapped variable>
2nd Variable
1 <Mapped variable>
3rd Variable
1 <Mapped variable>
4th Variable
1 <Mapped variable>
Other Variables
1 <Unmapped variable>
2 <Unmapped variable>
Device Information
1 General
2 Model Numbers
3 Revision Numbers
4 Materials of Construction
5 Alarm and Security
View Logs
1 Diagnostic Log
2 Pressure Variable Logging
3 Temperature Variable Logging
Diagnostic Log
1 Most Recent Status Event
2 View Other Status Events
3 Total Operating Time
4 Clear Log
Pressure Variable Logging
1 Pressure Variable Log
2 Time Outside Sensor Limits
3 Pressure
4 Total Operating Time
5 Reset All Pressure Events
Temperature Variable Logging
1 Temperature Variable Log
2 Time Outside Sensor Limits
3 Module Temperature
4 Total Operating Time
5 Reset All Temperature Events
Sensor Calibration
1 Upper Sensor Trim
2 Lower Sensor Trim
3 Zero
Range Values
1 Upper Range value (20 mA)
2 Lower Range Value (4 mA)
Current Measurement
1 Pressure
2 Damping
3 Transfer Function
Last Calibration Points
1 Upper
2 Lower
Sensor Limits
1 Upper
2 Lower
3 Minimum Span
SPM Status (cont.)
1 SPM Insufficient Variability
2 SPM Low Pressure Status
Most Recent Status Event
1 Event 1 - Time since
View Other Status Events
1 Event 2 - Time since
2 Event 3 - Time since
3 Event 4 - Time since
4 Event 5 - Time since
5 Event 6 - Time since
6 Event 7 - Time since
7 Event 8 - Time since
8 Event 9 - Time since
9 Event 10 - Time since
Pressure Variable Log
1 Minimum Pressure
2 Time Since Minimum Event
3 Reset Minimum
4 Maximum Pressure
5 Time Since Maximum Event
6 Reset Maximum
Time Outside Sensor Limits
1 Above Upper Sensor Limit
2 Below Lower Sensor Limit
3 Reset Time Since 1st Events
Temperature Variable Log
1 Minimum Temperature
2 Time Since Minimum Event
3 Reset Minimum
4 Maximum Temperature
5 Time Since Maximum Event
6 Reset Maximum
Time Outside Sensor Limits
1 Above Upper Sensor Limit
2 Below Lower Sensor Limit
3 Reset Time Since 1st Events
General
1 Tag
2 Model
3 Date
4 Descriptor
5 Message
6 Serial Number
Model Numbers
1 Model Number 1
2 Model Number 2
3 Model Number 3
Revision Numbers
1 HART Universal
2 Field Device
3 Electronics SW
4 Electronics HW
5 Sensor SW
6 Sensor HW
Materials of Construction
1 Sensor Module Information
2 Flange Information
3 Remote Seal Information
Alarm and Security
1 Alarm Direction
2 High Alarm
3 High Saturation
4 Low Saturation
5 Low Alarm
6 Write Protect Status
7 Local ZERO/SPAN Buttons
Serial Number
1 Transmitter
2 Electronics
Sensor Module Information
1 Serial Number
2 Type
3 Configuration
4 Sensor Range
5 Sensor Limits
6 Isolator Material
7 Fill Fluid
Flange Information
1 Process Connection
2 Process Connection Material
3 O-ring Material
4 Drain Vent Material
Remote Seal Information
1 Number
2 Type
3 Diaphragm Material
4 Fill Fluid
Reference Manual Configuration
00809-0100-4801 March2024
HART 5 with Diagnostic menu trees
Figure 2-6: Overview
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Home
1 Overview
2 Configure
3 Service Tools
Configure
1 Guided Setup
2 Manual Setup
3 Alert Setup
(see Figure 7-33)
Guided Setup
1 Initial Setup
2 Diagnostics Setup
3 Optional Configuration
Manual Setup
1 Process Variables
2 Analog Output
3 Scaled Variable
4 Display Options
5 HART
6 Security
7 Device Information
Initial Setup
1 Basic Setup
2 Zero Trim
Diagnostics Setup
1 Statistical Process Monitoring
2 Power Advisory
3 Process Alerts
4 Service Alert
Optional Configuration
1 Configure Display
2 Configure Burst Mode
Basic Setup
1 Device Tagging
2 Units of Measure
3 Pressure Damping
4 Variable Mapping
5 Analog Output
6
Config Alarm & Saturation Levels
Display Options
1 Pressure: On or Off
2 Scaled Variable: On or Off
3 Module Temperature: On or Off
4 Percent of Range: On or Off
5 Standard Deviation: On or Off
6 Mean: On or Off
7 Coefficient of Variation: On or Off
Process Variables
1 Pressure Setup
2 Module Temperature Setup
Analog Output
1 Set Range Points
2 Set Range Points Manually
3 Sensor Limits
4 Readings
5 Alarm and Saturation Levels
Pressure Setup
1 Pressure
2 Units
3 Damping
4 Transfer Function
Module Temperature Setup
1 Module Temperature
2 Units
Set Range Points
1 PV Upper Range Value
2 PV Lower Range Value
3 Primary Variable
Set Range Points Manually
1 Range By Applying Pressure
Sensor Limits
1 Upper
2 Lower
3 Minimum Span
Readings
1 Analog Output
2 Percent of Range
Alarm and Saturation Levels
1 Alarm Direction
2 High Alarm
3 High Saturation
4 Low Saturation
5 Low Alarm
6 Config Alarm & Saturation Levels
Scaled Variable Setup
1 Scaled Variable
2 Units
3 Transfer Function
4 Linear Options*
5 Configure Scaled Variable
*If Square Root is selected for Transfer Function,
"Square Root Options"
Linear Options
1 Offset
Square Root Options
1 Cutoff Mode
2 Low Flow Cutoff
Display
1 Display Options
Display Options
1 Pressure: On or Off
2 Scaled Variable: On or Off
3 Module Temperature: On or Off
4 Percent of Range: On or Off
5 Standard Deviation: On or Off
6 Mean: On or Off
7 Coefficient of Variation: On or Off
HART
1 Variable Mapping
2 Burst Mode Configuration
3 Communication Settings
Variable Mapping
1 Primary Variable
2 2nd Variable
3 3rd Variable
4 4th Variable
Burst Mode Configuration
1 Mode
2 Option
Communication Settings
1 Polling Address
Security
1 Write Protect Status
2 Local ZERO/SPAN Buttons
Device Information
1 Identification
2 Flange Information
3 Remote Seal Information
Identification
1 Tag
2 Model
3 Date
4 Descriptor
5 Message
6 Transmitter Serial Number
7 Model Numbers
Flange Information
1 Process Connection
2 Process Connection Material
3 O-ring Material
4 Drain/Vent Material
Remote Seal Information
1 Number
2 Type
3 Diaphragm Material
4 Fill Fluid
Configuration Reference Manual
March2024 00809-0100-4801
Figure 2-7: Configure (Guided Setup and Manual Setup)
16 Emerson.com/RosemountRosemount 3051S
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Home
1 Overview
2 Configure
3 Service Tools
Configure
1 Guided Setup
2 Manual Setup
3 Alert Setup
Alert Setup
1 Statistical Process
Monitoring
2 Power Advisory Diagnostic
3 Device Diagnostics
4 Process Alerts
5 Service Alerts
Statistical Process Monitoring
Status
Baseline Configuration
Detection Configuration
Operational Values
Status
1 Detection Status
2 SPM Control
3 Statistical Values
4 Time Stamp
5 Trends
Detection Status
1 SPM Status
2 SPM Status (cont.)
3 Standard Deviation Sensitivity*
4 Mean Sensitivity**
*If CV is selected, "Coefficient of Variation Sensitivity"
**If CV is selected, this is not shown
SPM Control
1 Mode
2 Reset
3 Relearn
Statistical Values
1 Standard Deviation*
2 Mean
*Or Coefficient of Variation
Time Stamp
1 Time Since Detection
2 Total Operating Time
Trends
1 View Standard Deviation Trend*
2 View Mean Trend
*Or Coefficient of Variation
Baseline Configuration
1 Learn Settings
2 Verification Criteria
Learn Settings
1 SPM Variable
2 Learn/Monitor Period
3 Power Interruption Action
4 Low pressure Cut-off *
*Shown only when CV is selected
Verification Criteria
1 Insufficient Variability
2 Standard Deviation Difference
3 Mean Difference
Detection Configuration
1 Standard Deviation Detection Settings*
2 Mean Detection Settings**
*If CV is selected, "Coefficient of Variation
Detection Settings"
**If CV is selected, this is not shown
Standard Deviation Change*
1 Standard Deviation Sensitivity
2 Threshold Value**
3 Configure Sensitivity
4 Action
5 Alert Delay
6 High Detection Message
7 Low Detection Message
* If CV is selected, “Coefficient of Variation Change”
**Shown only if Sensitivity is set to "Custom"
Mean Change**
1 Mean Sensitivity
2 Threshold Value
3 Configure Sensitivity
4 Action
5 Mean Change Message
**If CV is selected, this is not shown
Operational Values
1 Standard Deviation
2 Mean
3 Coefficient of Variation
4 SPM Detection Values
5 Number of Relearns
6 Reset Relearn Counter
SPM Detection Values
1 Standard Deviation
2 Mean
3 Coefficient of Variation
Power Advisory Diagnostic
1 Power Advisory Diagnostic
2 Loop Power Characterization
Power Advisory Diagnostic
1 Terminal Voltage
2 Terminal Voltage Deviation Limit
3 Action
4 Reset Alert
Loop Power Characterization
1 Resistance
2 Power Supply
3 Characterization Time Stamp
4 Characterize Loop
Resistance
1 Previous Baseline
2 Baseline
Power Supply
1 Previous Baseline
2 Baseline
Characterization Time Stamp
1 Previous Characterization
2 Time Since Characterization
Device Diagnostics
1 mA Output Diagnostic
2 Transmitter Power Consumption
mA Output Diagnostic
1 Action
2 Reset Alert
Transmitter Power Consumption
1 Action
2 Reset Alert
Process Alerts
1 Pressure Alerts
2 Temperature Alerts
Pressure Alerts
1 View Trend
2 Pressure
3 Alert Settings
4 Pressure Alert Events
Temperature Alerts
1 View Trend
2 Module Temperature
3 Alert Settings
4 Module Temperature Alert Events
Service Alerts
1 Time Remaining
2 Message
3 Alert Mode
4 Configure
5 Reset Alert
Alert Settings
1 Alert Mode
2 High Alert Value
3 Low Alert Value
Pressure Alert Events
1 High Alert Events
2 Low Alert Events
3 Reset Alert Events
Alert Settings
1 Alert Mode
2 High Alert Value
3 Low Alert Value
Temperature Alert Events
1 High Alert Events
2 Low Alert Events
3 Reset Alert Events
Reference Manual Configuration
00809-0100-4801 March2024
Figure 2-8: Configure (Alert Setup)
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Home
1 Overview
2 Configure
3 Service Tools
Service Tools
1 Device Alerts
2 Variables
3 Trends
4 Routine Maintenance
5 Simulate
Variables
1 Pressure
2 Scaled Variable
3 Module Temperature
Trends
1 Pressure
2 Scaled Variable
3 Module Temperature
Routine Maintenance
1 Pressure Calibration
2 Analog Output Calibration
3 Recall Factory Calibration
Simulate
1 Loop Test
Device Alerts
1 Refresh Alerts
2 Configuration Changed
Only Active Alerts show up
Trend Graph
Pressure Calibration
1 Upper Sensor Trim
2 Lower Sensor Trim
3 Zero
4 Last Calibration Points
5 Sensor Limits
Last Calibration Points
1 Upper Calibration Point
2 Lower Calibration Point
Sensor Limits
1 Upper
2 Lower
3 Minimum Span
Configuration Reference Manual
March2024 00809-0100-4801
Figure 2-9: Service Tools
18 Emerson.com/RosemountRosemount 3051S
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Reference Manual Configuration
00809-0100-4801 March2024
HART 7 menu trees
Figure 2-10: Overview
19
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Configuration Reference Manual
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Figure 2-11: Configure (Guided Setup and Manual Setup)
20 Emerson.com/RosemountRosemount 3051S
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Reference Manual Configuration
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Figure 2-12: Configure (Alert Setup)
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Configuration Reference Manual
March2024 00809-0100-4801
Figure 2-13: Service Tools
Device Dashboard Fast Key sequence
The following menu indicates Fast Key sequences for common functions. A check (✓)
indicates the basic configuration parameters. At minimum, these parameters should be
verified as part of the configuration and startup procedure.
Function Fast Key sequence
Alarm and Saturation Levels 1, 4, 5
Alarm Level Configuration 1, 7, 5
Analog Output Alarm Direction 1, 7, 5, 1
Burst Mode Control 2, 2, 4, 3
Burst Option 2, 2, 4, 4
Custom Display Configuration 2, 1, 3
✓ Damping 2, 2, 1, 5
Date 2, 2, 5, 4
22 Emerson.com/RosemountRosemount 3051S
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Reference Manual Configuration
00809-0100-4801 March2024
Function Fast Key sequence
Descriptor 2, 2, 5, 5
Digital to Analog Trim (4 - 20 mA Output) 3, 4, 2
Disable Zero & Span Adjustment 2, 2, 7, 2
Field Device Information 1, 7
LCD Display Configuration 2, 2, 3
Loop Test 3, 5, 1
Lower Sensor Trim 3, 4, 1, 2
Message 2, 2, 5, 6
Module Temperature/Trend 3, 3, 3
Poll Address 1, 2, 2
Pressure Alert Configuration 2, 3, 1
Range Values 2, 2, 1, 3
Re-mapping 2, 2, 4, 1
Rerange - Keypad Input 1, 5
Rerange with Keypad 2, 2, 1, 3
Saturation Level Configuration 2, 2, 1, 7
Scaled D/A Trim (4–20 mA Output) 3, 4, 2
Scaled Variable Configuration 2, 2, 2
Sensor Information (Materials of Construction) 1, 7, 3
Sensor Trim 3, 4, 1
Sensor Trim Points 3, 4, 1, 4
✓ Tag 2, 2, 5, 1
Temperature Alert Configuration 2, 3, 2
✓ Transfer Function (Setting Output Type) 2, 2, 1, 4
Transmitter Security (Write Protect) 2, 2, 7, 1
✓ Units (Process Variable) 2, 2, 1, 2
Upper Sensor Trim 3, 4, 1, 1
Zero Trim 3, 4, 1, 3
HART 5 with Diagnostics Fast Key sequence
The following menu indicates Fast Key sequences for common functions. A check (✓)
indicates the basic configuration parameters. At minimum, these parameters should be
verified as part of the configuration and startup procedure.
Function Fast Key sequence
Alarm and Saturation Levels 2, 2, 2, 5
Alarm Level Configuration 2, 1, 1, 1, 6
Analog Output Alarm Direction 2, 2, 2, 5, 5, 1
Burst Mode On/Off 2, 2, 5, 2, 1
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Function Fast Key sequence
Burst Option 2, 2, 5, 2, 2
Damping 2, 2, 1, 1, 3
Date 2, 2, 7, 1, 3
Descriptor 2, 2, 7, 1, 4
Digital to Analog Trim (4–20 mA Output) 3, 4, 1, 2, 3
Field Device Information 1, 3, 5
LCD Display Configuration 2, 2, 4
Loop Test 3, 5
Lower Sensor Trim 3, 4, 1, 1, 1, 2
Message 2, 2, 7, 1, 5
Module Temperature 2, 2, 1, 2
Poll Address 2, 2, 5, 3, 1
Pressure Alert Configuration 2, 3, 4, 1, 3
Range Values 3, 4, 1, 1, 2
Re-mapping 2, 2, 5, 1
Rerange - Keypad Input 2, 2, 2, 1
Rerange with Pressure Source 2, 2, 2, 2
Saturation Level Configuration 2, 1, 1, 1, 6
Scaled Variable Configuration 2, 2, 3, 5
Sensor Information 1, 3, 5, 4, 1
Sensor Trim Points 1, 3, 1, 1, 4
✓ Tag 2, 2, 7, 1, 1
Temperature Alert Configuration 2, 3, 4, 2, 3
✓ Transfer Function (Setting Output Type) 2, 2, 1, 1, 4
Transmitter Security (Write Protect) 1, 3, 5, 5, 6
✓ Units (Process Variable) 2, 2, 1, 1, 2
Upper Sensor Trim 3, 4, 1, 1, 1, 1
Zero Trim 3, 4, 1, 1, 1, 3
HART 7 Fast Key sequence
Function
Alarm and Saturation Levels 2, 2, 2, 5
Alarm Level Configuration 2, 2, 2, 5, 6
Analog Output Alarm Direction 2, 2, 2, 5, 1
Burst Mode Control 2, 2, 5, 3
Burst Option 2, 2, 5, 3, 1
Damping 2, 2, 1, 1, 3
Fast Key sequence
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Function Fast Key sequence
Date 2, 2, 5, 4
Descriptor 2, 2, 7, 1, 4
Digital to Analog Trim (4–20 mA Output) 3, 4, 1, 2, 3, 1
Disable Zero & Span Adjustment 2, 2, 6, 4
Field Device Information 1, 7
LCD Display Configuration 2, 2, 4
Loop Test 3, 5, 1
Lower Sensor Trim 3, 4, 1, 2
Message 2, 2, 7, 1, 6
Module Temperature/Trend 3, 3, 2
Poll Address 2, 2, 5, 2, 1
Pressure Alert Configuration 2, 3, 4, 1
Range Values 2, 2, 2, 2
Re-mapping 2, 2, 5, 1
Rerange - Keypad Input 2, 2, 2, 2, 1
Rerange with Keypad 2, 2, 2, 3
Saturation Level Configuration 2, 2, 2, 5, 6
Scaled D/A Trim (4–20 mA Output) 3, 4, 1, 2, 3, 2
Scaled Variable Configuration 2, 2, 3, 7
Sensor Information (Materials of Construction) 1, 7, 3, 1
Sensor Trim 3, 4, 1, 1, 1
Sensor Trim Points 3, 4, 1, 1, 4
Tag 2, 2, 7, 1, 1
Temperature Alert Configuration 2, 3, 4, 2
Transfer Function (Setting Output Type) 2, 2, 3, 3
Transmitter Security (Write Protect) 1, 7, 4, 6, 1
Units (Process Variable) 2, 2, 1, 1, 2
Upper Sensor Trim 3, 4, 1, 1
Zero Trim 3, 4, 1, 3
2.5 Check output
Before performing other transmitter online operations, review the digital output
parameters to ensure that the transmitter is operating properly and is configured to the
appropriate process variables.
2.5.1
Process variables
The process variables for the Rosemount 3051S provide transmitter output, and are
continuously updated. The pressure reading in both engineering units and percent of
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range will continue to track with pressures outside of the defined range from the lower to
the upper range limit of the SuperModule™.
View process variables on the Field Communicator
Table 2-1: Field Communicator Fast Key sequences
Device Dashboard Fast Keys 3, 2
HART 5 with Diagnostics Fast Keys 3, 2, 1
HART 7 Fast Keys 3, 2, 2
Enter the Fast Key sequence process variables to view the process variables.
Note
Regardless of the range points, the 3051S will measure and report all readings within
the digital limits of the sensor. For example, if the 4and 20mA points are set to
0and10inH2O, and the transmitter detects a pressure of 25inH2O, it digitally outputs
the 25inH2O reading and a 250 percent of span reading.
View Process Variables on the AMS Device Manager
Procedure
1. Right click on the device and select Overview from the menu.
2. Select All Variables to display the primary, secondary, tertiary, and quaternary
variables.
2.5.2 Module temperature
The Rosemount 3051S contains a temperature sensor near the pressure sensor in the
SuperModule™. When reading this temperature, keep in mind module temperature is not a
process temperature reading.
View the Module Temperature reading on the Field Communicator
Table 2-2: Field Communicator Fast Key Sequences
Device Dashboard Fast Keys 3, 2, 3
HART 5 with Diagnostics Fast Keys 3, 2, 1, 2
HART 7 Fast Keys 3, 2, 2, 2
Enter the Fast Key sequence Module Temperature to view the module temperature
reading.
View the Module Temperature reading on the AMS Device Manager
Procedure
1. Right click on the device and select Overview from the menu.
2. Click All Variables.
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2.6 Basic setup
2.6.1 Set Process Variable Units
The PV Unit command sets the process variable units to allow you to monitor your process
using the appropriate units of measure.
Set Process Variable Units on the AMS Device Manager
Procedure
1. Right click on the device and select Configure from the menu.
2. Select Manual Setup from the left window pane.
3. Select the Process Variables tab.
4. Click the Unit drop-down menu to select units.
2.6.2 Set output (transfer function)
The Rosemount 3051S has two output settings: linear and square root. Activate the square
root output option to make analog output proportional to flow. As input approaches zero,
the pressure transmitter automatically switches to linear output in order to ensure a more
smooth, stable output near zero (see Figure 2-14 ).
From 0 to 0.6 percent of the ranged pressure input, the slope of the curve is unity (y =
x). This allows accurate calibration near zero. Greater slopes would cause large changes in
output (for small changes at input). From 0.6 to 0.8 percent, curve slope equals 42 (y = 42x)
to achieve continuous transition from linear to square root at the transition point.
Note
If low flow cutoff configuration is desired, use Scaled variable configuration to configure
square root and Remapping to map the scaled variable as the primary variable.
Note
If scaled variable is mapped as the primary variable and square root mode is selected,
ensure that transfer function is set to linear. Do not set the transfer function to square root
if square root mode is selected for the primary variable, as this would cause the square
root function to be performed twice.
Set Output on the Field Communicator
Device Dashboard Fast Keys
HART 5 with Diagnostics Fast Keys 2, 2, 1, 1, 4
HART 7 Fast Keys 2, 2, 1, 1, 4
Procedure
1. Enter the Fast Key sequence for Set Output (Transfer Function).
2. Select Send.
2, 2, 1, 4
Set the Output on the AMS Device Manager
Procedure
1. Right click on the device and select Configure from the menu.
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2. Select Manual Setup from the left window pane.
3. Select the Process Variables tab.
4. Select the Transfer Function drop-down menu to select output.
Figure 2-14: Square Root Output Transition Point
A. Full scale output (mA DC)
B. Full scale flow (%)
C. Square root curve
D. Transition point
E. Slope = 42
F. Slope = 1
G. Pressure input
H. Sq. root curve
I. Transition point
J. Linear section
Note
For a flow turn down of greater than 10:1, it is not recommended to perform
a square root extraction in the transmitter. Instead, perform the square root
extraction in the system. Alternatively, you can configure scaled variable for square
root output. This configuration allows you to select a low flow cutoff value, which
will work best for the application. If low flow cutoff configuration is desired, use
Scaled variable configuration to configure square root and Remapping to map
scaled variable as the primary variable.
2.6.3 Rerange
Range Values command sets each of the lower and upper range analog values (4 and
The
20 mA points) to a pressure. The lower range point represents 0 percent of range and
the upper range point represents 100 percent of range. In practice, the transmitter range
values may be changed as often as necessary to reflect changing process requirements.
For a complete listing of range and sensor limits, refer to the Specifications section of the
Rosemount 3051S Series of Instrumentation Product Data Sheet.
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Note
Transmitters are shipped from Emerson fully calibrated per request or by the factory
default of full scale (zero to upper range limit.)
Select from one of the methods below to rerange the transmitter. Each method is unique;
examine all options closely before deciding which method works best for your process.
• Rerange with a Field Communicator or AMS Device Manager only.
• Rerange with a pressure input source and a Field Communicator or AMS Device
Manager.
• Rerange with a pressure input source and the local zero and span buttons (option D1).
Note
If the transmitter security jumper/switch is ON, adjustments to the zero and span cannot
be made. Refer to Wiring the device for security information.
Rerange with a Field Communicator or AMS Device Manager only
The easiest and most popular way to rerange is to use the Field Communicator only. This
method changes the range values of the analog 4 and 20 mA points independently without
a pressure input. This means that when you change either the 4 or 20 mA setting, you also
change the span.
An example for the 4–20 mA HART output:
If the transmitter is ranged so that
4 mA = 0 inH2O, and 20 mA = 100 inH2O,
and you change the 4 mA setting to 50 inH2O using the communicator only, the new
settings are:
4 mA = 50 inH2O, and 20 mA = 100.
Note that the span was also changed from 100 inH2O to 50 inH2O, while the 20 mA setpoint
remained at 100 inH2O.
To obtain reverse output, simply set the 4 mA point at a greater numerical value than the
20 mA point. Using the above example, setting the 4 mA point at 100 inH2O and the 20 mA
point at 0 inH2O will result in reverse output.
Rerange on Field Communicators
Device Dashboard Fast Keys
HART 5 with Diagnostics Fast Keys 2, 2, 2, 1
HART 7 Fast Keys 2, 2, 2, 4
From the HOME screen, enter the Fast Key sequence Rerange with a Field Communicator
Only.
Procedure
1. From Keypad Input, select 2 and use the keypad to enter lower range value.
2. From Keypad Input, select 1 and use the keypad to enter upper range value.
3. To complete reranging the transmitter, select Send.
1, 5
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Rerange on AMS Device Manager
Procedure
1. Right click on the device and select Configure from the menu.
2. Select Manual Setup from the left window pane.
3. In the Analog Output tab, locate the Configuration box and perform the following
procedure:
a) Enter the lower range value (LRV) and the upper range value (URV) in the
fields provided.
b) Select Send.
c) After carefully reading the warning provided, select Yes.
Rerange with a Pressure Input Source and a Field Communicator or AMS Device Manager
Reranging using the Field Communicator and applied pressure is a way of reranging the
transmitter when specific 4 and 20mA points are not calculated.
Note
The span is maintained when the 4 mA point is set. The span changes when the 20 mA
point is set. If the lower range point is set to a value that causes the upper range point to
exceed the sensor limit, the upper range point is automatically set to the sensor limit, and
the span is adjusted accordingly.
Rerange with a Pressure Input Source and Field Communicator
Device Dashboard Fast Keys
HART 5 with Diagnostics Fast Keys 2, 2, 2, 2, 1
HART 7 Fast Keys 2, 2, 2, 3
From the HOME screen, enter the Fast Key sequence Rerange with a Pressure Input
Source and a Field Communicator or AMS Device Manager. Follow the on-screen
instructions.
2, 2, 1, 8
Rerange with a Pressure Input Source and AMS Device Manager
Procedure
1. Right click on the device, select Calibrate, then Apply Values from the menu.
2. After the control loop is set to manual, select Next.
3. From the Apply Values menu, follow the online instructions to configure lower and
upper range values.
4. Select Exit to leave the Apply Values screen.
5. Select Next to acknowledge the loop can be returned to automatic control.
6. Select Finish to acknowledge the method is complete.
Rerange with a Pressure Input Source and the local zero and span buttons (option D1)
Reranging using the local zero and span adjustments and a pressure source is a way
of reranging the transmitter when specific 4 and 20 mA points are not known and a
communicator is not available.
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Note
The span is maintained when the 4 mA point is set. The span changes when the 20 mA
point is set. If the lower range point is set to a value that causes the upper range point to
exceed the sensor limit, the upper range point is automatically set to the sensor limit, and
the span is adjusted accordingly.
To rerange the transmitter using the span and zero buttons, perform the following
procedure:
Procedure
1. Using a pressure source with an accuracy at least four times the desired calibrated
accuracy, apply a pressure equivalent to the lower range value to the high side of
the transmitter.
2. Push and hold the zero adjustment button for at least two seconds but no longer
than 10 seconds.
3. Apply a pressure equivalent to the upper range value to the high side of the
transmitter.
4. Push and hold the span adjustment button for at least two seconds but no longer
than 10 seconds.
Figure 2-15: Plantweb
™
A. Zero
B. Span
Figure 2-16: Junction box
A. Zero
B. Span
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2.6.4 Damping
Damping changes the response time of the transmitter; higher values can smooth
variations in output readings caused by rapid input changes. Determine the appropriate
damp setting based on the necessary response time, signal stability, and other
requirements of the loop dynamics of your system. The damping value of your device
is user selectable from 0 to 60 seconds.
Access Damping on the Field Communicator
Device Dashboard Fast Keys 2, 2, 1, 5
HART 5 with Diagnostics Fast Keys 2, 2, 1, 1, 3
HART 7 Fast Keys 2, 2, 1, 1, 3
Enter the Fast Key sequence Damping.
Set the Damping Value in AMS Device Manager
Procedure
1. Right click on the device and select Configure from the menu.
2. Select Manual Setup from the left window pane.
3. In the Process Variables tab, locate Damping and set to desired value.
2.7 LCD display (Optional Order Code)
The LCD display connects directly to the interface/electronics board which maintains direct
access to the signal terminals. The display indicates output and abbreviated diagnostic
messages. A display cover is provided to accommodate the display.
The LCD display features a four-line display and a 0–100 percent scaled bar graph. The
first line of five characters displays the output description, the second line of seven digits
displays the actual value, the third line of six characters displays engineering units and
the fourth line displays Error when the transmitter is in alarm. The LCD display can also
display diagnostic messages.
The LCD display configuration command allows customization of the LCD display to suit
application requirements. The LCD display will alternate between the selected items.
2.7.1 Configure the LCD display on the Field Communicator
Device Dashboard Fast Keys 2, 2, 3
HART 5 with Diagnostics Fast Keys 2, 2, 4
HART 7 Fast Keys 2, 2, 4
To configure the LCD display, enter the Fast Key sequence.
2.7.2
Configure the LCD display in AMS Device Manager
Procedure
1. Right click on the device and select Configure from the menu.
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2. Select Manual Setup from the left window pane.
3. In the Display tab, select which parameters to show.
2.8 Detailed setup
2.8.1 Failure mode alarm and saturation
Rosemount 3051S Transmitters automatically and continuously perform self-diagnostic
routines. If the self-diagnostic routines detect a failure, the transmitter drives the output to
configured alarm values. The transmitter will also drive the output to configured saturation
values if the applied pressure goes outside the 4–20 mA range values.
The transmitter will drive its output low or high based on the position of the alarm switch.
See Wiring the device.
Note
The failure mode alarm direction can also be configured using the Field Communicator or
AMS Device Manager if hardware switches are not present. See Alarm and saturation level
configuration.
3051S Transmitters have three configurable options for failure mode alarm and saturation
levels:
Table 2-3: Rosemount (Standard) Alarm and Saturation Values
Level 4–20 mA saturation 4–20 mA alarm
Low 3.9 mA ≤ 3.75 mA
High 20.8 mA ≥ 21.75 mA
Table 2-4: NAMUR-Compliant Alarm and Saturation Values
Level 4–20 mA saturation 4–20 mA alarm
Low 3.8 mA ≤ 3.6 mA
High 20.5 mA ≥ 22.5 mA
Table 2-5: Custom Alarm and Saturation Values
Level 4–20 mA saturation 4–20 mA alarm
Low 3.7 — 3.9 mA 3.4 — 3.8 mA
High 20.1 — 21.5 mA 20.2 — 23.0 mA
Per Table 2-5, custom alarm and saturation levels can be configured between 3.4 and 3.9
mA for low values and between 20.1 and 23.0 mA for high values. The following limitations
exist for custom levels:
• Low alarm level must be less than the low saturation level
• High alarm level must be higher than the high saturation level
• High saturation level must not exceed 21.5 mA
• Alarm and saturation levels must be separated by at least 0.1 mA
The Field Communicator or AMS Device Manager will provide an error message if a
configuration rule is violated.
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2.8.2 Alarm and saturation level configuration
Configure Alarm and Saturation Levels with a Field Communicator
Device Dashboard Fast Keys 2, 2, 1, 7
HART 5 with Diagnostics Fast Keys 2, 2, 2, 5
HART 7 Fast Keys 2, 2, 2, 5
Procedure
1. From the HOME screen, follow the Fast Key sequence.
2. To configure alarm levels, select 6: Config. Alarm and Sat. Levels.
3. Select desired setting.
If OTHER is selected, enter HI and LO custom values.
Configure Alarm and Saturation Levels with AMS Device Manager
Procedure
1. Right click on the device and select Configure from the menu.
2. Select Manual Setup from the left window pane.
3. In the Analog Output tab, select Configure Alarm and Saturation Levels.
4. Follow instructions presented on the screen.
2.8.3 Alarm and saturation levels for burst mode
Transmitters set to burst mode handle saturation and alarm conditions differently.
Alarm conditions
• Analog output switches to alarm value
• Primary variable is burst with a status bit set
• Percent of range follows primary variable
• Temperature is burst with a status bit set
Saturation
• Analog output switches to saturation value
• Primary variable is burst normally
• Temperature is burst normally
2.8.4 Alarm and saturation values for multidrop mode
Transmitters set to multidrop mode handle saturation and alarm conditions differently.
Alarm conditions
34 Emerson.com/RosemountRosemount 3051S
• Primary variable is sent with a status bit set
• Percent of range follows primary variable
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• Module temperature is sent with a status bit set
Saturation
• Primary variable is sent normally
• Temperature is sent normally
2.8.5 Alarm level verification
The transmitter alarm level should be verified before returning the transmitter to service if
the following changes are made:
• Replacement of electronics board, SuperModule, or LCD display
• Alarm and saturation level configuration
This feature is also useful in testing the reaction of the control system to a transmitter in
an alarm state. To verify the transmitter alarm values, perform a loop test, and set the
transmitter output to the alarm value.
Related information
Loop Test
2.8.6 Process alerts
Process alerts allow the user to configure the transmitter to output a HART message when
the configured data point is exceeded. Process Alerts can be set for pressure, module
temperature, or both.
A process alert will be transmitted continuously if the pressure or module temperature
set points are exceeded and the alert mode is ON. An alert will be displayed on a Field
Communicator, AMS Device Manager status screen, and in the error section of the LCD
display. The alert will reset once the value returns within range.
Note
HI alert value must be higher than the LO alert value. Both alert values must be within the
pressure or module temperature sensor limits.
Configure the process alerts with a Field Communicator
Device Dashboard Fast Keys
HART 5 with Diagnostics Fast Keys 2, 3, 4
HART 7 Fast Keys 2, 3, 4
Procedure
1. From the HOME screen, follow the Fast Key sequence Process Alerts.
2. To configure the process alerts, select an option:
• To configure the pressure alerts, select 1, Pressure Alerts
• To configure the temperature alerts, select 2, Temperature Alerts
a) To configure the high alert value, select 2, High Alert Value
b) To configure the low alert value, select 3, Low Alert Value
3. To enable changes, select Send.
2, 3
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Configure the Process Alerts with AMS Device Manager
Procedure
1. Right click on the device and select Configure from the menu.
2. Select Alert Setup from the left window pane and Process Alerts from the sub-menu.
3. In the Analog Output tab, enter High Alert Value and Low Alert Value to configure
the pressure alerts.
4. Configure pressure alert mode using the drop-down menu.
5. Click Send.
6. In the Temperature Alerts tab, enter High Alert Value and Low Alert Value to
configure the temperature alerts.
7. Configure temperature alert mode using the drop-down menu.
8. Click Send.
2.8.7 Scaled variable configuration
The scaled variable configuration allows the user to create a relationship/conversion
between the pressure units and user-defined/custom units.
The scaled variable configuration defines the following items:
Scaled variable
units
Scaled data options
Custom units to be displayed
Defines the transfer function for the application:
• Linear
• Square root
Pressure value
position 1
Scaled variable
value position 1
Pressure value
position 2
Scaled variable
value position 2
Linear offset
Lower known value point (possible 4 mA point) with consideration of
linear offset
Custom unit equivalent to the lower known value point (lower known
value point may or may not be the 4 mA point)
Upper known value point (possible 20 mA point)
Custom unit equivalent to the upper known value point (possible 20
mA point)
Value required to zero out pressures affecting the desired pressure
reading
Low flow cutoff
Point at which output is driven to zero to prevent problems caused
by process noise. It is highly recommended to use the low flow cutoff
function in order to have a stable output and avoid problems due to
process noise at a low flow or no flow condition. A low flow cutoff
value that is practical for the flow element in the application should
be entered.
Note
If Scaled Variable is mapped as the primary variable and square root mode is selected,
ensure transfer function is set to linear. Refer to Set output (transfer function).
Configure with Field Communicator
Device Dashboard Fast Keys
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HART 5 with Diagnostics Fast Keys 2, 2, 3
HART 7 Fast Keys 2, 2, 3
Procedure
1. From the HOME screen, follow the Fast Key sequence Scaled Variable Configuration.
2. Select SV Config to configure scaled variable.
Units can be up to five characters long and include A—Z, 0—9, –, /,%, and *.
Default unit is DEFLT. The first character is always an asterisk (*), which identifies
the units displayed are scaled variable units.
3. Select Scaled Data Options.
a) Select Linear if the relationship between process variable and scaled Variable
units is linear. Linear prompts for two data points, which results in four values
to enter.
b) Select Square Root if the relationship between PV and scaled Variable is
square root (flow applications). Square root will prompt for one data point,
requiring two values to be entered.
4. Enter Pressure Value Position 1.
Pressure values must be within the range of the transmitter.
a) If performing a Linear Function, enter the lower known value point
considering any linear offset.
b) If performing a Square Root Function, select OK to acknowledge pressure
value is set to zero.
5. Enter Scaled Variable Position 1.
a) If performing a Linear Function, enter the lower known value point in terms
of the scaled Variable; this value must be no longer than seven digits.
b) If performing a Square Root Function, select OK to acknowledge scaled
variable value is set to zero.
6. Enter Pressure Value Position 2.
Pressure values must be within the range of the transmitter.
a) Enter the upper known value point in terms of pressure.
7. Enter Scaled Variable Position 2.
a) If performing a Linear Function, enter custom unit equivalent to the upper
known value point; this value must be no longer than seven digits.
b) If performing a Square Root Function, enter the maximum scaled Variable
unit that is equated to the high pressure from Step6; this value must be no
longer than seven digits. Skip to Step 9.
8. If performing a Linear Function, enter linear offset value in pressure units. Skip to
Step 10.
9. If performing a Square Root Function, enter Low Flow Cutoff mode.
a) If a low flow cutoff value is not desired, select OFF.
b) If a low flow cutoff value is desired, select ON and enter this value in scaled
variable (custom) units on the next screen.
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10. To acknowledge that the loop can be returned to automatic control, select OK.
Configure the Scaled Variable with AMS Device Manager
Procedure
1. Right click on the device and select Configure from the menu.
2. Select Manual Setup from the left window pane.
3. In the Scaled Variable tab, select Configure Scaled Variable.
4. Follow instructions presented on the screen.
2.8.8 Differential pressure level example scaled variable
Below is an example of scaled variable in a DP level application. The Rosemount 3051S
reads the DP in units of inH2O, but the output scaled variable is the height of the liquid in
the tank in inches.
Figure 2-17: Example Tank
Note
Dimensions are in inches (mm).
A differential transmitter is used in a level application where the span is 188 inH2O (200-in.
0.94 sg). Once installed on an empty tank and taps vented, the process variable reading is
–209.4 inH2O. The process variable reading is the head pressure created by fill fluid in the
capillary. Based on Figure 2-15, the scaled variable configuration would be as follows:
Scaled variable units
Scaled data options Linear
Pressure value position 1 0 inH2O (0 mbar)
Scaled variable position 1 12 in. (305 mm)
Pressure value position 2 188 inH2O (0.47 bar)
Scaled Variable Position 2 212 in. (5385 mm)
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Linear offset –209.4 inH2O (–0.52 bar)
2.8.9 Differential pressure flow example of scaled variable
This DP Flow example of scaled variable takes the DP reading of inH2O, and outputs the
resulting flow in gal/h. Output is scaled with a square root operation internally. The DP
transmitter is used in conjunction with an orifice plate in a flow application where the
differential pressure at full scale flow is 125 inH2O. In this particular application, the flow
rate at full scale flow is 20,000 gallons of water per hour. Emerson highly recommends
using the low flow cutoff function in order to have a stable output and avoid problems due
to process noise at a low flow or no flow condition. A low flow cutoff value that is practical
for the flow element in the application should be entered. In this particular example, the
low flow cutoff value is 1000 gallons of water per hour. Based on this information, the
Scaled Variable configuration would be as follows:
Scaled variable units:
Scaled data options: Square root
Pressure value Position 2: 125 inH2O (311 mbar)
Scaled variable position 2: 20,000 gal/h (75,708 lt/hr)
Low flow cutoff: 1000 gal/h (ON)
Note
Pressure Value Position 1 and Scaled Variable Position 1 are always set to zero for a flow
application. No configuration of these values is required.
2.8.10 Remapping
The remapping function allows the transmitter primary, secondary, tertiary, and
quaternary variables to be configured as desired.
Table 2-6: Default Configuration for Transmitter Variables
HART 5 HART 5 with Diagnostics HART 7
Primary Variable (PV) Pressure
Secondary Variable (SV) Module Temperature
Tertiary Variable (TV) Scaled
Quaternary Variable (QV) Coefficient of Variation Standard Deviation
gal/h
Standard Deviation Scaled Variable
Variable
Note
The variable assigned as the primary variable drives the 4–20 mA analog output. The scaled
variable can be remapped as the primary variable if desired.
Remapping with a Field Communicator
Device Dashboard Fast Keys
HART 5 with Diagnostics Fast Keys 2, 2, 5, 1
HART 7 Fast Keys 2, 2, 5, 1
2, 2, 4, 1
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Procedure
1. From the Home screen, enter the Fast Key sequence Remapping.
2. Set the control loop to Manual (see Setting the loop to Manual).
3. Select desired primary variable and select Enter.
4. Select desired secondary variable and select Enter.
5. If using 3051S HART 5 with Diagnostics or 3051S with HART 7, select desired
quaternary variable and select Enter. If using 3051S with HART 5, continue to Step 6.
6. Select Send to complete the changes, then return the loop to automatic control.
7. Select OK to acknowledge that the loop can be returned to automatic control.
Re-mapping with the AMS Device Manager
Procedure
1. Set the control loop to manual (see Setting the loop to Manual).
2. Right click on the device and select Configure from the menu.
3. Select Manual Setup from the left window pane.
4. In the HART tab, locate the Variable Mapping box.
5. Select desired primary variable.
6. Select desired secondary variable.
7. Select desired tertiary variable.
8. If using 3015A HART 5 with Diagnostics or 3051S with HART 7, select desired
quarternary variable and select Enter. If using 3051S with HART 5, continue to Step
9.
9. Select Send.
2.8.11 Module temperature unit
The sensor temperature unit command selects between Celsius and Fahrenheit units for
the module temperature.
Note
The module temperature output is accessible via HART only.
Configure the Module Temperature Unit on a Field Communicator
Device Dashboard Fast Keys
HART 5 with Diagnostics Fast Keys 2, 2, 1, 2, 2
HART 7 Fast Keys 2, 2, 1, 2, 2
Enter the Fast Key sequence Module Temperature Unit and select degC for Celsius or degF
for Fahrenheit.
Configure the Module Temperature Unit on a Field
Communicator
Device Dashboard Fast Keys
HART 5 with Diagnostics Fast Keys 2, 2, 1, 2, 2
HART 7 Fast Keys 2, 2, 1, 2, 2
2, 2, 1, 6
2, 2, 1, 6
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Enter the Fast Key sequence Module Temperature Unit and select degC for Celsius or degF
for Fahrenheit.
Configure the Module Temperature Unit on AMS Device Manager
Procedure
1. Right click on the device and select Configure from the menu.
2. Select Manual Setup from the left window pane.
3. In the Process Variables tab, locate the Module Temperature Setup box.
4. Use the Units drop-down menu to select degF (Fahrenheit) or degC (Celsius).
5. Select Send.
2.9 Diagnostics and service
Diagnostics and service functions listed below are primarily for use after field installation.
The transmitter test feature is designed to verify that the transmitter is operating properly,
and can be performed either on the bench or in the field. The loop test feature is designed
to verify proper loop wiring and transmitter output, and should only be performed after
you install the transmitter.
2.9.1 Loop Test
The Loop Test command verifies the output of the transmitter, the integrity of the loop,
and the operations of any recorders or similar devices installed in the loop.
Initiate a Loop Test on a Field Communicator
Device Dashboard Fast Keys
HART 5 with Diagnostics Fast Keys 3, 5, 1
HART 7 Fast Keys 3, 5, 1
To initiate a Loop Test, perform the following procedure:
Procedure
1. Connect a reference meter to the transmitter by either connecting the meter to the
test terminals on the terminal block, or shunting transmitter power through the
meter at some point in the loop.
2. From the Home screen, enter the Fast Key sequence Loop Test to verify the output
of the transmitter.
3. Select OK after the control loop is set to manual (see Setting the loop to Manual).
4. Select a discrete milliamp level for the transmitter to output. At the CHOOSE
ANALOG OUTPUT prompt, select 1: 4mA, 2: 20mA, or 3: “Other” to manually input a
value.
a) If you are performing a Loop Test to verify the output of a transmitter, enter a
3, 5, 1
value between 4 and 20 mA.
b) If you are performing a Loop Test to verify alarm levels, enter the milliamp
value representing an alarm state (see Table 2-1, Table 2-2, and Table 2-3).
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5. Check the reference meter installed in the test loop to verify it displays the
commanded output value.
a) If the values match, the transmitter and the loop are configured and
functioning properly.
b) If the values do not match, the current meter may be attached to the wrong
loop, there may be a fault in the wiring, the transmitter may require an
output trim, or the reference meter may be malfunctioning.
After completing the test procedure, the display returns to the loop test screen to choose
another output value or to end looptesting.
Initiate a Loop Test on AMS Device Manager
Procedure
1. Right click on the device and select Service Tools from the menu.
2. Select Simulate from the left window pane.
3. In the Simulate tab, locate and select Loop Test.
4. Follow instructions presented on the screen.
2.9.2 Simulate Device Variables
It is possible to temporarily set the pressure, module temperature, or scaled variable to a
user-defined fixed value for testing purposes. Once the simulated variable method is left,
the process variable will be automatically returned to a live measurement. Simulate Device
Variables is only available with HART Revision 7.
Simulate Device Variables on a Field Communicator
Device Dashboard Fast Keys
HART 5 with Diagnostics Fast Keys N/A
HART 7 Fast Keys 3, 5, 2
From the HOME screen, enter the Fast Key sequence Simulate digital signal with a Field
Communicator.
Simulate Device Variables on AMS Device Manager
Procedure
1. Right click on the device and select Service Tools from the menu.
2. Select Simulate from the left window pane.
3. Under Device Variables select a digital value to simulate.
• Pressure
• Sensor Temperature
• Scaled Variable
N/A
4. Follow the screen prompts to simulate selected digital value.
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2.10 Advanced functions
2.10.1 Saving, recalling, and cloning configuration data
Use the cloning feature of the Field Communicator or the AMS Device Manager User
Configuration feature to configure several Rosemount 3051S Transmitters similarly.
Cloning involves configuring a transmitter, saving the configuration data, and then sending
a copy of the data to a separate transmitter. Several possible procedures exist when
saving, recalling, and cloning configuration data or AMS Device Manager online guides.
Saving, Recalling, and Cloning Configuration Data on a Field Communicator
Device Dashboard Fast Keys
HART 5 with Diagnostics Fast Keys left arrow, 1, 2
HART 7 Fast Keys left arrow, 1, 2
Procedure
1. Confirm and apply configuration changes to the first transmitter.
2. Save the configuration data.
If transmitter configuration has not been modified, SAVE option will be disabled.
a) From the bottom of the Field Communicator screen, select SAVE.
b) Select to save your configuration on either the Internal Flash (default) or the
System Card.
c) Enter the name for this configuration file.
d) Select SAVE.
3. Power the receiving transmitter and connect with the Field Communicator.
4. Access the HART Application menu by pressing the left arrow from the HOME/
ONLINE screen.
5. Locate the saved transmitter configuration file.
a) Select Offline.
b) Select Saved Configuration.
c) Select either Internal Flash Contents or System Card Contents depending on
where the configuration was stored.
N/A
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 desired configuration.
7. Select Send to transfer the configuration to the receiving transmitter.
The transmitter receiving cloned data must have the same software version (or
later) as the original transmitter.
8. After the control loop is set to manual, select OK.
9. After the configuration has been sent, select OK to acknowledge that the loop can
be returned to automatic control.
When finished, the Field Communicator informs you of the status. Repeat Step 3 through
Step 9 to configure another transmitter.
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Note
The transmitter receiving cloned data must have the same software version (or later) as the
original transmitter.
Creating a Reusable Copy in AMS Device Manager
Create a reusable copy of a configuration.
Procedure
1. Completely configure the first transmitter.
2. Select View.
3. Select User Configurations from the menu (or select the toolbar button)
4. In the User Configurations window, right click and select New from the context
menu.
5. In the New window, select a device from the list of templates shown, and select OK.
6. The template is copied into the User Configurations window with the tag name
highlighted; rename it as appropriate and select Enter.
A device icon can also be copied by dragging and dropping a device template or any
other device icon from Wireless Explorer or Device Connection View into the User
Configurations window.
7. Right click on the copied device and select Configure/Setup from the User
Configurations window.
8. Select Compare from the bottom left window pane.
9. Transfer values from the current configuration to the user configuration as
appropriate or enter values by typing them into the available fields.
10. Select Save to apply the values.
Applying a User Configuration in AMS Device Manager
Any amount of User Configurations can be created for the application. They can also be
saved, and applied to connected devices or to devices in the device list or plant database.
Note
When using AMS Device Manager Revision 6.0 or later, the device to which the user
configuration is applied must be the same model type as the one created in the user
configuration.
Procedure
1. In the User Configurations window, select the desired user configuration.
2. Drag the icon onto a like device in Wireless Explorer or Device Connection View.
The Compare Configurations window opens, showing the parameters of the target
device on one side and the parameters of the user configuration on the other.
3. Transfer parameters from the user configuration to the target device as desired.
Select the Transfer Multiple button to send the configuration and close the window.
2.10.2 Burst mode
When configured for
communication from the transmitter to the control system by eliminating the time
required for the control system to request information from the transmitter. Burst mode
is compatible with the analog signal. Because the HART protocol features simultaneous
digital and analog data transmission, the analog value can drive other equipment in the
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Burst mode, the Rosemount 3051S provides faster digital
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loop while the control system is receiving the digital information. Burst mode applies only
to the transmission of dynamic data (pressure and module temperature in engineering
units, pressure in percent of range, and/or analog output), 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 Field Communicator, AMS Device
Manager, or the control system may request any of the information that is normally
available while the transmitter is in burst mode. Between each message sent by the
transmitter, a short pause allows the Field Communicator, AMS Device Manager, or a
control system to initiate a request. The transmitter will receive the request, process the
response message, and then continue bursting the data approximately three times per
second.
Selecting burst mode options in HART 5
Message content options:
• PV only
• Percent of range/current
• PV, 2V, 3V, 4V
• Process variables
Selecting burst mode options in HART 7
Message content options:
• PV only
• Percent of range/current
• PV, 2V, 3V, 4V
• Process variables and status
• Process variables
• Device status
• All dynamic variables
Selecting a HART 7 trigger mode
When in HART 7 mode, the following trigger modes can be selected.
• Continuous (same as HART 5 burst mode)
• Rising
• Falling
• Windowed
• On change
Note
Consult host system manufacturer for burst mode requirements.
Configure Burst Mode for Field Communicator
Enter the Fast Key sequence Burst Mode to configure the transmitter for burst mode.
Table 2-7:
Device Dashboard Fast Keys 2, 2, 4, 3
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Table 2-7:
HART 5 with Diagnostics Fast Keys 2, 2, 5, 2
HART 7 Fast Keys 2, 2, 5, 3
AMS Device Manager
1. Right click on the device and select Configure from the menu.
2. Select Manual Setup from the left window pane.
3. Select the HART tab.
4. Enter the configuration in Burst Mode Configuration fields.
(continued)
2.11 Multidrop communication
Multidropping transmitters refers to the connection of several transmitters to a single
communications transmission line. Communication between the host and the transmitters
takes place digitally with the analog output of the transmitters deactivated.
Multidrop installation requires consideration of the update rate necessary from each
transmitter, the combination of transmitter models, and the length of the transmission
line. Communication with transmitters can be accomplished with Bell 202 modems and a
host implementing HART protocol. Each transmitter is identified by a unique address and
responds to the commands defined in the HART protocol. Field Communicators and AMS
Device Manager can test, configure, and format a multidropped transmitter the same way
as a transmitter in a standard point-to-point installation.
Note
A transmitter in multidrop mode has the analog output fixed at 4mA. If a meter is installed
to a transmitter in multidrop mode, it will alternate the display between current fixed and
the specified meteroutput(s).
The Rosemount 3051S is set to address zero (0) at the factory, which allows operation in
the standard point-to-point manner with a 4–20 mA output signal. To activate multidrop
communication, the transmitter address must be changed to a number from 1 to 15
for HART Revision 5 or 1 to 63 for HART Revision 7. This change deactivates the 4–20
mA analog output, setting it to 4 mA. It also disables the failure mode alarm signal,
which is controlled by the upscale/downscale switch/jumper position. Failure signals in
multidropped transmitters are communicated through HART messages.
2.11.1 Changing a transmitter address
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.
Change a transmitter address with a Field Communicator
Device Dashboard Fast Keys
HART 5 with Diagnostics Fast Keys 2, 2, 5, 3, 1
HART 7 Fast Keys 2, 2, 5, 2, 1
1, 2, 2
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Procedure
1. From the HOME screen, enter the Fast Key sequence Changing a Transmitter
Address and select OK.
2. After removing loop from automatic control, select OK again and enter the address.
Change a transmitter address with AMS Device Manager
Procedure
1. Right click on the device and select Configure from the menu.
2. For HART Revision 5 devices:
a) Select Manual Setup and select the HART tab.
b) In the Communications Settings box, enter polling address in the Polling
Address box. Select Send.
3. For HART Revision 7 devices:
a) Select Manual Setup and select the HART tab.
b) Select the Change Polling Address button and follow instructions presented
on the screen.
4. Carefully read the warning and select Yes if it is safe to apply the changes.
2.11.2 Communicating with a multidropped transmitter
To communicate with a multidropped transmitter, the Field Communicator of AMS Device
Manager has to be set up for polling.
Set up the Field Communicator for Polling
Device Dashboard Fast Keys
HART 5 with Diagnostics Fast Keys Left arrow, 3, 1, 2
HART 7 Fast Keys Left arrow, 3, 1, 2
Procedure
1. Select Utility and Configure HART Application.
2. Select Polling Addresses.
3. Enter a polling address.
• For HART Revision 5 devices, enter address 0–15.
• For HART Revision 7 devices, enter address 0–63.
Set up the AMS Device Manager for Polling
Procedure
1. Select the HART modem icon.
2. Select Scan All Devices.
3, 1, 2
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3 Hardware Installation
3.1 Overview
The information in this section covers installation considerations for HART® Protocol. The
3051S Quick Start Guide for HART is shipped with every transmitter to describe basic
installation, wiring, and startup procedures. Dimensional drawings for each 3051S Pressure
Transmitter variation and mounting configuration are included in the 3051S Series of
Instrumentation Product Data Sheet.
Note
The following sections contain installation instructions for many optional features. Only
follow a section's directions if the transmitter being installed comes with the features
described.
3.2 Considerations
3.2.1 Installation considerations
Measurement performance depends upon proper installation of the transmitter and
impulse piping. Mount the transmitter close to the process and use minimum piping
to achieve best performance. Also, consider the need for easy access, personnel safety,
practical field calibration, and a suitable transmitter environment. Install the transmitter to
minimize vibration, shock, and temperature fluctuation.
NOTICE
Install the enclosed pipe plug in the unused conduit opening. For straight threads, a
minimum of six threads must be engaged. For tapered threads, install the plug wrenchtight. For material compatibility considerations, see Material Selection and Compatibility
Considerations for Rosemount Pressure Transmitters.
3.2.2 Environmental considerations
Best practice is to mount the transmitter in an environment that has minimal ambient
temperature change. The transmitter electronics temperature operating limits are –40 to
185 °F (–40 to 85 °C). Refer to Rosemount 3051S Series of Instrumentation Product Data
Sheet, which 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.
3.2.3 Mechanical considerations
Access requirements and cover installation can help optimize transmitter performance.
See the Rosemount 3051S Series of Instrumentation Product Data Sheet for temperature
operating limits.
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NOTICE
Ensure the transmitter is securely mounted. Tilting of the transmitter may cause a zero
shift in the transmitter output.
Side mounted
When the transmitter is mounted on its side, position the Coplanar™ flange to ensure
proper venting or draining. Mount the flange as shown in Figure 3-1 and Figure 3-4
keeping drain/vent connections on the bottom for gas service and on the top for liquid
service.
Figure 3-1: Coplanar Installation Example: Liquid service
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Figure 3-2: Coplanar Installation Example: Gas service
A. Flow
Figure 3-3: Coplanar Installation Example: Steam service
A. Flow
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Figure 3-4: Inline Installation Example: Liquid service
Figure 3-5: Inline Installation Example: Gas service
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Figure 3-6: Inline Installation Example: Steam service
3.2.4 Draft range
Installation
For the Rosemount 3051S_CD0 Draft Range Pressure Transmitter, it is best to mount the
transmitter with the isolators parallel to the ground. Installing the transmitter in this way
reduces oil mounting effect and provides for optimal temperature performance.
Reducing process noise
There are two recommended methods of reducing process noise:
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• Output damping
• Reference side filtering (in-gauge applications)
Reference side filtering
In gauge applications, it is important to minimize fluctuations in atmospheric pressure to
which the low side isolator is exposed.
Methods of reducing fluctuations in atmospheric pressure:
• Attach a length of tubing to the reference side of the transmitter to act as a pressure
buffer.
• Plumb the reference side to a chamber that has a small vent to atmosphere. If multiple
draft transmitters are being used in an application, the reference side of each device
can be plumbed to a chamber to achieve a common gauge reference.
3.3 Installation procedures
An overview of the installation steps for a Rosemount 3051S Pressure Transmitter is
depicted in the Figure 3-7. These steps are described in more detail in the following
sections.
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Figure 3-7: HART® Installation Flowchart
3.3.1 Mount the transmitter
LCDdisplay
In addition to housing rotation, the optional display can be rotated in 90-degree
increments by squeezing the two tabs, pulling out, rotating and snapping back into place.
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If the LCD display pins are inadvertently removed from the interface board when the
display is pulled from the housing, carefully remove the pins from the back of the display,
and then re-insert the pins into the interface board. Once the pins are back in place, snap
the display into place. Transmitters ordered with the LCD display will be shipped with the
display installed.
Electronics housing clearance
Mount the transmitter so the terminal side and the LCD display are accessible. Clearance
of 0.75 in. (19 mm) is required for cover removal on the terminal side. If a LCD display
isinstalled, then 3 in. (76 mm) of clearance is required for cover removal .
Flange bolt installation
If the transmitter installation requires assembly of the process flanges, manifolds, or
flange adapters, follow these assembly guidelines to ensure a tight seal for optimal
performance characteristics of the transmitters. Use only bolts supplied with the
transmitter or sold by Emerson as spare parts. Figure 3-8 illustrates common transmitter
assemblies with the bolt length required for proper transmitter assembly.
The transmitter can be shipped with a Coplanar™ flange or a traditional flange installed
with four 1.75-in. (44.45 mm) flange bolts. Stainless steel bolts supplied by Emerson are
coated with a lubricant to ease installation. Carbon steel bolts do not require lubrication.
No additional lubricant should be applied when installing either type of bolt.
Bolts supplied by Emerson are identified by their head markings:
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Figure 3-8: Flange bolt head markings
A. Carbon steel (CS) head markings
B. Stainless steel (SST) head markings
C. Alloy K-500 head marking
Note
The last digit in the F593_head marking may be any letter between A and M.
Bolt installation
Only use bolts supplied with the Rosemount 3051S or sold by Emerson as parts for the
transmitter. The use of non approved bolts could reduce pressure. Use the following bolt
installation procedure:
1. Finger-tighten the bolts.
2. Torque the bolts to the initial torque value using a crossing pattern.
3. Torque the bolts to the final torque value using the same crossing pattern.
Initial and final torque values for the flange and manifold adapter bolts are as follows:
Table 3-1: Torque Values
Bolt material Initial torque value Final torque value
Carbon steel-ASTM-A449
Standard
316 Stainless steel—Option L4 150 in.-lb. (17 N-m) 300 in.-lb. (34 N-m)
ASTM-A-193-B7M—Option L5 300 in.-lb. (34 N-m) 650 in.-lb. (73 N-m)
Alloy K-500 —Option L6 300 in.-lb. (34 N-m) 650 in.-lb. (73 N-m)
ASTM-A-453-660—Option L7 150 in.-lb. (17 N-m) 300 in.-lb. (34 N-m)
ASTM-A-193-B8M—Option L8 150 in.-lb. (17 N-m) 300 in.-lb. (34 N-m)
300 in.-lb. (34 N-m) 650 in.-lb. (73 N-m)
When installing the transmitter to one of the optional mounting brackets, torque the
mounting bolts to 125 in-lb (14.1 N-m).
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Figure 3-9: Flange Bolts and Adapters
Transmitter with flange bolts Transmitters with flange adapters and bolts
Note
Dimensions are in inches (millimeters).
Mounting brackets
Facilitate mounting transmitter to a 2-in. (50.8 mm) pipe, or to a panel. The B4
Bracket stainless steel option is standard for use with the coplanar and in-line process
connections. See Rosemount 3051S Series of Instrumentation Product Data Sheet for
bracket dimensions and mounting configurations for the B4 option.
Options B1–B3 and B7–B9 are sturdy, epoxy/polyester-painted brackets designed for use
with the traditional flange. The B1–B3 brackets have carbon steel bolts, while the B7–
B9 brackets have stainless steel bolts. The BA and BC brackets and bolts are stainless
steel. The B1/B7/BA and B3/B9/BC style brackets support 2-in. (50.8 mm) pipe-mount
installations, and the B2/B8 style brackets support panel mounting.
Table 3-2: Mounting brackets
Panel mount Coplanar flange Pipe mount
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Table 3-2: Mounting brackets
(continued)
Traditional flange
In-line
3.3.2 Impulse piping
Systems that will use impulse piping should follow the guidance in this section. Not all
Rosemount 3051S measurement systems will use impulse piping, especially systems with
remote seals, and Rosemount Annubar, compact orifice plates, or an integral orifice plate.
Each of these systems has their own manual to assist with installation.
Mounting requirements
Impulse piping configurations depend on specific measurement conditions. Refer to Figure
3-1 and Figure 3-4 for examples of the following mounting configurations:
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Steam service
NOTICE
For steam service or for applications with process temperatures greater than the limits of
the transmitter, do not blow down impulse piping through the transmitter. Flush lines with
the blocking valves closed and refill lines with water before resuming measurement.
Refer to Figure 3-1 for correct mounting orientation.
Note
For steam or other elevated temperature services, it is important that temperatures at the
process connection do not exceed the transmitter’s process temperature limits.
Best practices
The piping between the process and the transmitter must accurately transfer the pressure
to obtain accurate measurements. These are some possible sources of error: pressure
transfer, leaks, friction loss (particularly if purging is used), trapped gas in a liquid line,
liquid in a gas line, density variations between the legs, and plugged impulse piping.
The best location for the transmitter in relation to the process pipe is dependent on the
process. Use the following guidelines to determine transmitter location and placement of
impulse piping:
• Keep impulse piping as short as possible.
• For liquid service, slope the impulse piping at least 1 in./ft. (8cm/m) upward from the
transmitter toward the processconnection.
• For gas service, slope the impulse piping at least 1in./ft. (8cm/m) downward from the
transmitter toward the processconnection.
• Avoid high points in liquid lines and low points in gas lines.
• Ensure both impulse legs are the same temperature.
• Use impulse piping large enough to avoid friction effects andblockage.
• Vent all gas from liquid piping legs.
• When using a sealing fluid, fill both piping legs to the same level.
• When purging, make the purge connection close to the process taps and purge through
equal lengths of the same size pipe. Avoid purging through the transmitter.
• Keep corrosive or hot (above 250°F [121°C]) process material out of direct contact with
the sensor module and flanges.
• Prevent sediment deposits in the impulse piping.
• Maintain equal leg of head pressure on both legs of the impulse piping.
• Avoid conditions that might allow process fluid to freeze within the process flange.
3.3.3 Liquid measurement
1. Place taps to the side of the line to prevent sediment deposits on the transmitter’s
process isolators.
2. Mount the transmitter beside or below the taps so gases can vent into the process
line.
3. Mount drain/vent valve upward to allow gases to vent.
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3.3.4 Gas measurement
1. Place taps in the top or side of the line.
2. Mount the transmitter beside or above the taps so liquid will drain into the process
line.
3.3.5 Steam measurement
1. Place taps to the side of the line.
2. Mount the transmitter below the taps to ensure that the impulse piping will stay
filled with condensate.
3. In steam service above 250 °F (121 °C), fill impulse lines with water to prevent
steam from contacting the transmitter directly and to ensure accurate measurement
start-up.
3.3.6 Process connections
Flange bolt installation
If the transmitter installation requires assembly of the process flanges, manifolds, or
flange adapters, follow these assembly guidelines to ensure a tight seal for optimal
performance characteristics of the transmitters. Use only bolts supplied with the
transmitter or sold by Emerson as spare parts. Figure 3-10 illustrates common transmitter
assemblies with the bolt length required for proper transmitter assembly.
The transmitter can be shipped with a Coplanar™ flange or a traditional flange installed
with four 1.75-in. (44.45 mm) flange bolts. Stainless steel bolts supplied by Emerson are
coated with a lubricant to ease installation. Carbon steel bolts do not require lubrication.
No additional lubricant should be applied when installing either type of bolt.
Bolts supplied by Emerson are identified by their head markings:
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Figure 3-10: Flange bolt head markings
A. Carbon steel (CS) head markings
B. Stainless steel (SST) head markings
C. Alloy K-500 head marking
Note
The last digit in the F593_head marking may be any letter between A and M.
In-line process connection
In-line gauge transmitter orientation
NOTICE
Equipment damage
Interfering or blocking the atmospheric reference port will cause the transmitter to output
erroneous pressure values.
The low side pressure port (atmospheric reference) on the in-line gauge transmitter is
located under the sensor module neck label. See Figure 3-11.
NOTICE
Keep the vent path free of any obstruction, such as paint, dust, and lubrication by
mounting the transmitter so that any contaminants can drain away.
Figure 3-11: In-line Gauge Low Side Pressure Port
A. Low side pressure port (under neck label)
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3.3.7 Housing rotation
To improve field access to wiring or to better view the optional LCD display:
1. Loosen the housing rotation set screw.
2. First rotate the housing clockwise to the desired location. If the desired location
cannot be achieved due to thread limit, rotate the housing counterclockwise to the
desired location (up to 360° from thread limit).
3. Re-tighten the housing rotation set screw.
Figure 3-12: Plantweb™ Housing
A. Set screw
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Figure 3-13: Junction box housing
A. Set screw
3.4 Flange bolt installation
If the transmitter installation requires assembly of the process flanges, manifolds, or
flange adapters, follow these assembly guidelines to ensure a tight seal for optimal
performance characteristics of the transmitters. Use only bolts supplied with the
transmitter or sold by Emerson as spare parts. Figure 3-14 illustrates common transmitter
assemblies with the bolt length required for proper transmitter assembly.
The transmitter can be shipped with a Coplanar™ flange or a traditional flange installed
with four 1.75-in. (44.45 mm) flange bolts. Stainless steel bolts supplied by Emerson are
coated with a lubricant to ease installation. Carbon steel bolts do not require lubrication.
No additional lubricant should be applied when installing either type of bolt.
Bolts supplied by Emerson are identified by their head markings:
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Figure 3-14: Flange bolt head markings
A. Carbon steel (CS) head markings
B. Stainless steel (SST) head markings
C. Alloy K-500 head marking
Note
The last digit in the F593_head marking may be any letter between A and M.
3.4.1 Rosemount 304 and 305 Manifold styles
Rosemount 304 Manifolds
The 304 comes in two basic styles: traditional (flange + flange and flange + pipe) and wafer.
The 304 Traditional Manifold comes in 2-, 3-, and 5-valve configurations. The 304 Wafer
Manifold comes in 3- and 5-valve configurations.
Figure 3-15: 304 Manifold Styles
A. Traditional
B. Wafer
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Rosemount 305 Integral Manifold
The 305 Integral Manifold is available in two styles: coplanar and traditional. The traditional
305 can be mounted to most primary elements with mounting adapters.
Figure 3-16: 305 Integral Manifold Styles
A. Coplanar
B. Traditional
3.4.2 Rosemount 304 Conventional Manifold installation
To install a 304 Conventional Manifold to a 3051 Transmitter:
Procedure
1. Align the Conventional Manifold with the transmitter flange. Use the four manifold
bolts for alignment.
2. Finger-tighten the bolts, then tighten the bolts incrementally in a cross pattern to
final torque value.
See Flange bolt installation for complete bolt installation information and torque
values.
When fully tightened, the bolts will extend through the top of the sensor module
housing.
3. Leak-check assembly to maximum pressure range of transmitter.
3.4.3 Rosemount 305 Integral Manifold installation procedure
Prerequisites
Inspect the PTFE sensor module O-rings:
• If the O-rings are undamaged, then Emerson recommends reusing them.
• If the O-rings are damaged (if they have nicks or cuts, for example), replace them with
new O-rings designed for Rosemount transmitters.
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NOTICE
If replacing the O-rings, be careful not to scratch or deface the O-ring grooves or the
surface of the isolating diaphragm when removing the damaged O-rings.
Procedure
1. Install the integral manifold on the sensor module:
a) Finger-tighten the bolts.
b) Tighten the bolts incrementally in a cross pattern to final torque value.
Figure 3-17: Tighten the bolts
See #unique_99/unique_99_Connect_42_table_fcw_q4f_w3b for complete bolt
installation information and for torque values.
When fully tightened, the bolts should extend through the top of the module
housing plane of the flange web (bolt hole) but must not contact the module
housing.
2. If the PTFE sensor module O-rings have been replaced, re-tighten the flange bolts
after installation to compensate for cold flow of the O-rings.
3.4.4 Rosemount 306 Integral Manifold installation procedure
The 306 is for use only with a 3051S In-line Transmitter.
Assemble the 306 to the 3051S with a threadsealant. The proper installation torque value
for a 306 Manifold is 425 in-lb.
3.4.5 Manifold operation
WARNING
Process Leaks
Improper installation or operation of manifolds may result in process leaks, which may
cause death or serious injury.
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Always perform a zero trim on the transmitter/manifold assembly after installation to
eliminate any shift due to mounting effects.
Coplanar transmitters
3- and 5-valve manifolds
In normal operation the two isolate (block) valves between the process ports and
transmitter will be open and the equalize valve will be closed.
Figure 3-18: Normal operation
A. Drain/Vent valve
B. Isolate (open)
C. Equalize (closed)
D. Process
E. Drain/Vent valve
F. Isolate (open)
Procedure
1. To zero trim the transmitter, close the isolate valve on the low side (downstream)
side of the transmitter.
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Figure 3-19: Zero-trim
A. Drain/Vent valve
B. Isolate (open)
C. Equalize (closed)
D. Process
E. Drain/Vent valve
F. Isolate (closed)
2. Open the equalize valve to equalize the pressure on both sides of the transmitter.
The manifold is now in the proper configuration for performing a zero trim on the
transmitter.
Figure 3-20: Open the equalize valve
A. Drain/Vent valve
B. Isolate (open)
C. Equalize (open)
D. Process
E. Drain/Vent valve
F. Isolate (closed)
3. After performing a zero trim on the transmitter, close the equalize valve.
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Figure 3-21: Close the equalize valve
A. Drain/Vent valve
B. Isolate (open)
C. Equalize (closed)
D. Process
E. Drain/Vent valve
F. Isolate (closed)
4. Finally, to return the transmitter to service, open the low side isolate valve.
Figure 3-22: Return transmitter to service
A. Drain/Vent valve
B. Isolate (open)
C. Equalize (closed)
D. Process
E. Drain/Vent valve
F. Isolate (closed)
Performing zero trim at static line pressure with 3-valve and 5-valve manifolds
In normal operation, the two isolate (block) valves between the process ports and
transmitter will be open and the equalize valve will be closed.
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Figure 3-23: Normal operation
A. Drain/vent valve
B. Isolate (open)
C. Equalize (closed)
D. Process
E. Drain/vent valve
F. Isolate (open)
Procedure
1. To zero trim the transmitter, close the isolate valve on the low side (downstream)
side of the transmitter.
Figure 3-24: Zero-trim
A. Drain/vent valve
B. Isolate (open)
C. Equalize (closed)
D. Process
E. Drain/vent valve
F. Isolate (closed)
2. Open the equalize valve to equalize the pressure on both sides of the transmitter.
The manifold is now in the proper configuration for performing a zero trim on the
transmitter.
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Figure 3-25: Open the equalize valve
A. Drain/vent valve
B. Isolate (open)
C. Equalize (open)
D. Process
E. Drain/vent valve
F. Isolate (closed)
3. After performing a zero trim on the transmitter, close the equalize valve.
Figure 3-26: Close the equalize valve
A. Drain/vent valve
B. Isolate (open)
C. Equalize (open)
D. Process
E. Drain/vent valve
F. Isolate (closed)
4. Finally, to return the transmitter to service, open the low side isolate valve.
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Figure 3-27: Low side isolate valve
a. Drain/vent valve
b. Isolate (open)
c. Equalize (closed)
d. Process
e. Drain/vent valve
f. Isolate (open)
Performing zero trim at static line pressure with 5-valve natural gas manifold
5-valve natural gas configurations shown:
In normal operation, the two isolate (block) valves between the process ports and
transmitter will be open, and the equalize valves will be closed. Vent valves may be opened
or closed.
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Figure 3-28: Normal operation
A. Plugged
B. Isolate (open)
C. Process
D. Equalize (closed)
E. Drain vent (closed)
F. Equalize (closed)
G. Plugged
H. Isolate (open)
I. Process
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Procedure
1. To zero trim the transmitter, first close the isolate valve on the low-pressure
(downstream) side of the transmitter and the vent valve.
Figure 3-29: Zero-trim
A. Plugged
B. Isolate (open)
C. Process
D. Equalize (closed)
E. Drain vent (closed)
F. Equalize (closed)
G. Plugged
H. Isolate (closed)
I. Process
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2. Open the equalize valve on the high-pressure (upstream) side of the transmitter.
Figure 3-30: Open the high-pressure equalize valve
A. Plugged
B. Isolate (open)
C. Process
D. Equalize (open)
E. Drain vent (closed)
F. Equalize (closed)
G. Plugged
H. Isolate (closed)
I. Process
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3. Open the equalize valve on the low-pressure (downstream) side of the transmitter.
The manifold is now in the proper configuration for performing a zero trim on the
transmitter.
Figure 3-31: Open the low-pressure equalize valve
A. Plugged
B. Isolate (open)
C. Process
D. Equalize (open)
E. Drain vent (closed)
F. Equalize (open)
G. Plugged
H. Isolate (closed)
I. Process
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4. After performing a zero trim on the transmitter, close the equalize valve on the
low-pressure (downstream) side of the transmitter.
Figure 3-32: Close the low-pressure equalize valve
A. Plugged
B. Isolate (open)
C. Process
D. Equalize (open)
E. Drain vent (closed)
F. Equalize (closed)
G. Plugged
H. Isolate (closed)
I. Process
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5. Close the equalize valve on the high-pressure (upstream) side.
Figure 3-33: Close the high-pressure equalize valve
A. Plugged
B. Isolate (open)
C. Process
D. Equalize (closed)
E. Drain vent (closed)
F. Equalize (closed)
G. Plugged
H. Isolate (closed)
I. Process
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6. Finally, to return the transmitter to service, open the low side isolate valve and vent
valve.
The vent valve can remain open or closed during operation.
Figure 3-34: Return transmitter to service
A. Plugged
B. Isolate (open)
C. Process
D. Equalize (closed)
E. Drain vent (closed)
F. Equalize (closed)
G. Plugged
H. Isolate (open)
I. Process
In-line transmitter
Isolating the transmitter with 2-valve and block and bleed style manifolds
In normal operation the isolate (block) valve between the process port and transmitter
will be open and the test/vent valve will be closed. On a block and bleed style manifold,
a single block valve provides transmitter isolation and a bleed screw provides drain/vent
capabilities.
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Figure 3-35: Normal operation
A. Transmitter
B. Isolate
C. Process (open)
D. Vent (closed)
Procedure
1. To isolate the transmitter, close the isolate valve.
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Figure 3-36: Close the isolate valve
A. Transmitter
B. Isolate
C. Process (closed)
D. Vent (closed)
2. To bring the transmitter to atmospheric pressure, open the vent valve or bleed
screw.
NOTICE
Always use caution when venting directly to atmosphere. A ¼ in male NPT pipe plug
may be installed in the test/vent port and will need to be removed with a wrench in
order to vent the manifold properly.
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Figure 3-37: Open the vent or bleed screw
A. Transmitter
B. Isolate
C. Process (closed)
D. Vent (open)
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3. After venting to atmosphere, perform any required calibration and then close the
test/vent valve or replace the bleed screw.
Figure 3-38: Close test/vent valve or replace bleed screw
A. Transmitter
B. Isolate
C. Process (closed)
D. Vent (closed)
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4. Open the Isolate (block) valve to return the transmitter to service.
Figure 3-39: Open Isolate (block) valve
3.5
A. Transmitter
B. Isolate
C. Process (open)
D. Vent (closed)
Wiring the device
Remove orange conduit plugs
Use a conduit plug in the unused conduit opening. Thread-sealing PTFE tape or paste on
male threads of conduit is required to provide a water/dust tight conduit seal and meets
requirements of NEMA® Type 4X, IP66, and IP68. Consult Emerson.com/global if other
Ingress Protection ratings are required.
For M20 threads, install conduit plugs to full thread engagement or until mechanical
resistance is met.
NOTICE
Remove orange plugs from the transmitter conduit openings. The orange plugs are used
to keep the housing free of debris during shipping. They are not meant to be in the conduit
openings when the transmitter is installed and in use.
Install pipe plug in unused conduit opening
Important
Install the enclosed pipe plug (found in the box) in the unused conduit opening.
• For straight threads, a minimum of six threads must be engaged.
• For tapered threads, install the plug wrench-tight.
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For material compatibility considerations, refer to Material Selection and Compatibility
Considerations for Rosemount Pressure Transmitters Technical Note.
3.5.1 Wire the device
Use twisted pairs to yield best results. To ensure proper communication, use 24 to 14 AWG
wire. Do not exceed 5,000 ft. (1,500m).
NOTICE
Determine local wiring and conduit requirements. Understand local wiring and conduit
requirements prior to installation and be sure to follow all regulations during the
transmitter’s installation.
Figure 3-40: HART Terminal Blocks
A. Plantweb
B. Junction box
Procedure
1. Remove the housing cover on terminal compartment side. Signal wiring supplies all
power to the transmitter.
WARNING
Do not remove the cover in explosive environments when the circuit is live.
2. Connect the positive lead to the terminal marked (+) and the negative lead to the
terminal marked (PWR/COMM–).
NOTICE
Avoid contact with leads and terminals. Do not connect powered signal wiring to the
test terminals. Power could damage the test diode.
3. Ensure full contact with terminal block screw and washer. When using a direct
wiring method, wrap wire clockwise to ensure it is in place when tightening the
terminal block screw.
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NOTICE
Emerson does not recommend using a pin or ferrule as the connection may be more
susceptible to loosening over time or under vibration.
4. Plug and seal the unused conduit connection on the transmitter housing to avoid
moisture accumulation in the terminal side. Install wiring with a drip loop. Arrange
the drip loop so the bottom is lower than the conduit connections and the
transmitter housing.
Surges or transients
NOTICE
The transmitter will withstand electrical transients of the energy level usually encountered
in static discharges or induced switching transients. However, high-energy transients, such
as those induced in wiring from nearby lightning strikes, can damage the transmitter.
Optional transient protection terminal block
The transient protection terminal block can be ordered as an installed option (Option
Code T1 in the transmitter model number) or as a spare part to retrofit existing 3051S
Transmitters in the field. For a complete listing of spare part numbers for transient
protection terminal blocks, refer to Table 4-2. A lightning bolt symbol on a terminal block
identifies it as having transient protection.
Signal wiring grounding
WARNING
Do not run signal wiring in conduit or open trays with power wiring, or near heavy
electrical equipment. Grounding terminations are provided on the sensor module and
inside the terminal compartment. These grounds are used when transient protect terminal
blocks are installed or to fulfill local regulations.
The following section details more information on how the cable shield should be
grounded.
Electrical considerations
WARNING
Proper electrical installation is necessary to prevent errors due to improper grounding and
electrical noise. For Junction Box housing, shielded signal wiring should be used in high
EMI/RFI environments.
Note
Verify transmitter zero point after installation. To reset zero point, refer to Sensor trim
overview.
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Cover installation
NOTICE
Always ensure a proper seal by installing the electronics housing cover(s) so that metal
contacts metal. Use Rosemount O-rings.
3.5.2 Ground the transmitter housing
Transmittercase
WARNING
Always ground the transmitter case in accordance with national and local electrical codes.
The most effective transmitter case grounding method is a direct connection to earth
ground with minimal impedance. Methods for grounding the transmitter case include an
internal ground connection.
The internal ground connection screw is inside the terminal side of the electronics housing.
The screw is identified by a ground symbol ( ), and is standard on all Rosemount 3051S
Transmitters.
Table 3-3: Option Codes with External Ground Screw Included
Option
code
E1 ATEX Flameproof
N1 ATEX Type n
ND ATEX Dust
E4 TIIS Flameproof
K1 ATEX Flameproof, Intrinsic Safety, Type n, Dust (combination of E1, I1, N1, and ND)
E7 IECEx Flameproof, Dust ignition-proof
N7 IECEx Type n
K7 IECEx Flameproof, Dust ignition-proof, Intrinsic Safety, and Type n (combination of E7, I7,
KA ATEX and CSA Explosion-proof, Intrinsically Safe, Division 2 (combination of E1, E6, I1, and
KC FM and ATEX Explosion-proof, Intrinsically Safe, Division 2 (combination of E5, E1, I5, and
T1 Transient terminal block
D4 External ground screw assembly
Description
and N7)
I6)
I1)
NOTICE
Grounding the transmitter case using the threaded conduit connection may not provide a
sufficient ground. The transient protection terminal block (option code T1) will not provide
transient protection unless the transmitter case is properly grounded. Use the above
guidelines to ground the transmitter case. Do not run transient protection ground wire
with signal wiring; the ground wire may carry excessive current if a lightning strike occurs.
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3.5.3 Remote display wiring and power up
The remote mount display and interface system consists of a local transmitter and a
remote mount LCD display assembly. The local Rosemount 3051S Transmitter assembly
includes a junction box housing with a three position terminal block integrally mounted to
a SuperModule. The remote mount LCD display assembly consists of a dual compartment
Plantweb housing with a seven position terminal block. See Figure 1 for complete wiring
instructions. The following is a list of necessary information specific to the remote mount
display system:
• Each terminal block is unique for the remote display system.
• A 316 SST housing adapter is permanently secured to the remote mount LCD display
Plantweb housing providing an external ground and a means for field mounting with
the provided mounting bracket.
• A cable is required for wiring between the transmitter and remote mount LCD display.
The cable length is limited to 100 ft. (30 m)
• 50 ft. (50 m) (option M8) or 100 ft. (30 m) (option M9) cable is provided for wiring
between the transmitter and remote mount LCD display. Option M7 does not include
cable. Other comparable cable may be used as long as it has independent dual twisted
shielded pair wires with an outer shield. The power wires must be 22 AWG minimum
and the CAN communication wires must be 24 AWG minimum.
Note
Cable length may be up to 100 ft. (31 m), depending on cable capacitance. The capacitance
as wired must be less than 5,000 picofarads total. This allows up to 50 picofarads per 1 ft.
(0.3 m) for a 100 ft. (31 m) cable.
WARNING
Intrinsic Safety Consideration:The transmitter assembly with remote display has been
approved with Madison AWM Style 2549 cable. Alternate cable may be used as long as the
transmitter with remote display and cable is configured according to the installation
control drawing or certificate. Refer to appropriate approval certificate or control drawing
in for remote cable IS requirements.
NOTICE
Do not apply power to the remote communications terminal. Follow wiring instructions
carefully to prevent damage to system components.
NOTICE
For ambient temperatures above 140 °F (60 °C), cable wiring must be rated at least 9 °F (5
°C) above the maximum ambient temperature.
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Figure 3-41: Remote Mount Display Wiring Diagram
A. Junction box housing
B. Remote mount display
C. White 24 AWG
D. Blue 24 AWG
E. Black 22 AWG
F. Red 22 AWG
G. 4-20 mA
Note
Wire colors provided above are per Madison AWM Style 2549 cable. Wire color may vary
depending on cable selected.
Madison AWM Style 2549 cable includes a ground shield. This shield must be connected to
earth ground at either the SuperModule™ or the remote display, but not both.
3.5.4 Eurofast®/Minifast® connection
For Rosemount 3051S Transmitters with conduit electrical connectors GE or GM,
refer to the cordset manufacturer’s installation instructions for wiring details. For FM
Intrinsically Safe, non-incendive or FM FISCO Intrinsically Safe hazardous locations, install
in accordance with Rosemount drawing 03151-1009 to maintain outdoor rating (NEMA
and IP66).
Reassembly of conduit receptacles
If the conduit receptacle is removed or replaced, follow the instructions below to re-wire
the GE or GM conduit receptacle to the terminal block:
®
Procedure
1. Connect the green/yellow lead wire to the internal ground screw.
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2. Connect the brown lead wire to the terminal marked (+).
3. Connect the blue lead wire to the terminal marked (pwr/comm-).
3.5.5 Quick Connect wiring
As standard, the Rosemount 3051S Quick Connect arrives properly assembled to the
SuperModule and is ready for installation. Cordsets and field wireable connectors (in
shaded area) are sold separately.
Figure 3-42: Quick Connect Exploded View
A. Quick Connect housing
B. Straight field wireable connector
C. Right angle field wireable connector
D. Cordset
E. Cordset/field wireable coupling nut
F. Quick Connect coupling nut
Important
If Quick Connect is ordered as a 300S spare housing or is removed from the SuperModule,
follow the instructions for proper assembly prior to field wiring.
Procedure
1. Place the Quick Connect onto the SuperModule. To ensure proper pin alignment,
remove coupling nut prior to installing quick Connect onto SuperModule.
2. Place coupling nut over quick connect and wrench tighten to a maximum of 300
in-lb (34 N-m).
3. Tighten the set screw using a 3/32-in. hex wrench.
4. Install cordset/Field Wireable Connectors onto the Quick Connect. Do not
overtighten.
Order part number 03151-9063-0001.
(1)
(2) Field wiring supplied by customer.
(3) Order part number 03151-9063-0002.
(4) Supplied by cordset vendor.
(1) (2)
(3)(2)
(4)
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Figure 3-43: Quick Connect HousingPin-Out
A. Ground
B. No connection
For other wiring details, refer to pin-out drawing and the cordset manufacturer’s
installation instructions.
3.5.6 Power the transmitter
Power supply 4–20mA transmitters
The DC power supply should provide power with less than two percent ripple. Total
resistance load is the sum of resistance from signal leads and the load resistance of the
controller, indicator, and related pieces. Note the resistance of intrinsic safety barriers, if
used, must be included.
3.5.7 Cover jam screw
For transmitter housings shipped with a cover jam screw, as shown in Figure 3-44, the
screw should be properly installed once the transmitter has been wired and powered
up. The cover jam screw is intended to disallow the removal of the transmitter cover in
flameproof environments without the use of tooling.
Procedure
1. Verify the cover jam screw is completely threaded into the housing.
2. Install the transmitter housing cover and verify that the cover is tight against the
housing.
3. Using an M4 hex wrench, loosen the jam screw until it contacts the transmitter
cover.
4. Turn the jam screw an additional ½ turn counterclockwise to secure the cover.
NOTICE
Application of excessive torque may strip the threads.
5. Verify the cover cannot be removed.
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Figure 3-44: Cover Jam Screw
A. Plantweb housing
B. 2x cover jam screw (1 per side)
C. Junction box housing
D. Cover jam screw
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4 Operation and maintenance
™
This section contains information on commissioning and operating Rosemount
Pressure Transmitters. Tasks that should be performed on the bench prior to installation
are explained in thissection.
Field Communicator and AMS Device Manager instructions are given to perform
configuration functions. For convenience, Field Communicator Fast Key sequences are
labeled Fast Keys for each software function below the appropriate headings.
3051S
4.1
Calibration for HART® Protocol
Calibrating a Rosemount 3051S Transmitter may include the following procedures:
Rerange:Sets the 4
and 20 mA points at
required pressures.
The Rosemount 3051S SuperModule™ uses a microprocessor that contains information
about the sensor’s specific characteristics in response to pressure and temperature inputs.
A smart transmitter compensates for these sensor variations. The process of generating
the sensor performance profile is called factory sensor characterization. Factory sensor
characterization also provides the ability to readjust the 4 and 20mA points without
applying pressure to the transmitter.
Trim and rerange functions also differ. Reranging sets analog output to the selected
upper and lower range points and can be done with or without an applied pressure.
Reranging does not change the factory sensor characterization curve stored in the
microprocessor. Sensor trimming requires an accurate pressure input and adds additional
compensation that adjusts the position of the factory sensor characterization curve to
optimize performance over a specific pressure range.
Note
Sensor trimming adjusts the position of the factory sensor characterization curve. It is
possible to degrade performance of the transmitter if the trim is done improperly or with
inaccurate equipment.
Sensor trim: Adjusts the position of the factory sensor
characterization curve to optimize performance over a specified
pressure range, or to adjust for mounting effects.
Analog output trim:Adjusts the analog output to match the plant
standard or the control loop.
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Table 4-1: Recommended Calibration Tasks
Transmitter Bench calibration tasks Field calibration tasks
Rosemount
3051S_ CD,
3051S_ CG,
3051S_SAL,
3051S_SAM,
3051S_TG, Range
1–4
1. Set output configuration
parameters:
a. Set the range points.
b. Set the output units.
c. Set the output type.
d. Set the damping value.
• Optional: Perform a sensor
trim (accurate pressure source
required).
• Optional: Perform an analog
output trim (accurate multimeter
required).
• Reconfigure parameters if
necessary.
• Zero trim the transmitter to
compensate for mounting effects
or static pressure effects.
Rosemount
3051S_ CA,
3051S_ TA, 3051S_
TG, Range 5
1. Set output configuration
parameters:
a. Set the range points.
b. Set the output units.
c. Set the output type.
d. Set the damping value.
• Optional: Perform a sensor
trim if equipment available
(accurate absolute pressure source
required). Otherwise, perform the
low trim value section of the sensor
trim procedure.
• Optional: Perform an analog
output trim (accurate multimeter
required).
• Reconfigure parameters if
necessary.
• Perform low trim value section
of the sensor trim procedure
to correct for mounting position
effects.
Note
A Field Communicator is required for all sensor and output trim procedures. 3051S_C
Range 4 and Range 5 Transmitters require a special calibration procedure when used
in differential pressure applications under high static line pressure. 3051S_TG Range 5
Transmitters use an absolute sensor that requires an accurate absolute pressure source to
perform the optional sensor trim.
Related information
Compensating for line pressure (Range 4 and 5)
4.1.1 Calibration overview
Complete calibration of the Rosemount 3051S involves the following tasks:
Configure the analog output parameters
• Set Process Variable Units
• Set Output Type
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• Rerange
• Set Damping
Calibrate the sensor
• Sensor Trim
• Zero Trim
Calibrate the 4–20 mA output
• 4–20 mA Output Trim; or
• 4–20 mA Output Trim Using Other Scale
Data flow
Not all calibration procedures should be performed for each transmitter. Some procedures
are appropriate for bench calibration, but should not be performed during field calibration.
Table 4-1 identifies the recommended calibration procedures for each type of transmitter
for bench or field calibration. 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 is understood by the
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 Primary Variable (PV) is converted to an analog value (Digital-to-Analog
signal conversion).
4.1.2 Determining calibration frequency
Calibration frequency can vary greatly depending on the application, performance
requirements, and process conditions.
Procedure
1. Determine the performance required for your application.
2. Determine the operating conditions.
3. Calculate the Total Probable Error (TPE).
4. Calculate the stability per month.
5. Calculate the calibration frequency.
Sample calculation
Procedure
1. Determine the performance required for your application.
Required
performance
0.30 percent of span
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2. Determine the operating conditions.
Transmitter Rosemount 3051S_CD, range 2A [Upper range value
URV = 250 inH2O (623 mbar)], classic performance
Calibrated span 150 inH
Ambient temperature
change
Line pressure 500 psig (34.5 bar)
± 50 °F (28 °C)
O (374 mbar)
2
3. Calculate Total Probable Error (TPE).
Example
TPE = = 0.112% of
span
Where:
Reference accuracy = ± 0.055% of span
Ambient temperature effect =
Span static pressure effect
(5)
=
4. Calculate the stability per month.
Example
5. Calculate calibration frequency.
Example
4.1.3 Selecting a trim procedure
Prerequisites
To decide which trim procedure to use, you must first determine whether the analogto-digital section or the digital-to-analog section of the transmitter electronics needs
trimming.
Zero static pressure effect removed by zero trimming at line pressure.
(5)
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Procedure
1. Connect a pressure source, a Field Communicator or AMS Device Manager, and a
digital readout device to the transmitter.
2. Establish communication between the transmitter and theField Communicator.
3. Apply pressure equal to the upper range point pressure.
4. Compare the applied pressure to the pressure process variable value.
• On the Field Communicator, access the pressure process variable value on the
Process Variables menu.
• On the AMS Device Manager, access the pressure process variable on the
Process Variables screen.
If the pressure reading does not match the applied pressure (with high-accuracy test
equipment), perform a sensor trim. See Process variables to determine which trim to
perform.
For instructions on how to access process variables, see Sensor trim overview.
5. Compare the Analog Output (AO) line, on the Field Communicator or AMS Device
Manager, to the digital readout device.
If the AO reading does not match the digital readout device (with high-accuracy test
equipment), perform an analog output trim. See Analog output trim.
4.1.4 Sensor trim overview
Trim the sensor using either sensor or zero trim functions. Trim functions vary in
complexity and are application-dependent. Both trim functions alter the transmitter’s
interpretation of the input signal.
Zero trim is a single-point offset adjustment. It is useful for compensating for mounting
position effects and is most effective when performed with the transmitter installed in its
final mounting position. Since this correction maintains the slope of the characterization
curve, it should not be used in place of a sensor trim over the full sensor range.
When performing a zero trim with a manifold, refer to Manifold operation.
Note
Do not perform a zero trim on Rosemount 3051S Absolute Pressure Transmitters. Zero
trim is zero based, and absolute pressure transmitters reference absolute zero. To correct
mounting position effects on an absolute pressure transmitter, perform a low trim within
the sensor trim function. The low trim function provides an offset correction similar to the
zero trim function, but it does not require zero-based input.
Sensor trim is a 2-point sensor calibration where two end-point pressures are applied, and
all output is linearized between them. Always adjust the low trim value first to establish
the correct offset. Adjustment of the high trim value provides a slope correction to the
characterization curve based on the low trim value. The trim values allow you to optimize
performance over your specified measuring range at the calibration temperature.
4.1.5 Zero trim
Device Dashboard Fast Keys 3, 4, 1, 3
HART 5 with Diagnostics Fast Keys 3, 4, 1, 1, 1, 3
HART 7 Fast Keys 3, 4, 1, 1, 1, 3
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Note
The transmitter must be within three percent of true zero (zero-based) in order to calibrate
with zero trim function.
Calibrate the sensor with the Field Communicator Zero Trim Function
Calibrate the sensor with a Field Communicator using the zero trim function.
Procedure
1. Vent the transmitter and attach a Field Communicator to the measurement loop.
2. From the Home screen, follow the Fast Key sequence Zero Trim.
3. Follow the commands provided by the Field Communicator to complete the zero
trim adjustment.
Calibrate the sensor with the AMS Device Manager Zero Trim Method
Procedure
1. Right click on the device and from the menu, select Methods.
2. Select Calibrate.
3. Select Zero Trim.
4. Follow the on-screen prompts.
5. Select Finish to acknowledge the method is complete.
4.1.6 Sensor trim
Device Dashboard Fast Keys 3, 4, 1
HART 5 with Diagnostics Fast Keys 3, 4, 1, 1, 1
HART 7 Fast Keys 3, 4, 1, 1, 1
Note
Use a pressure input source that is at least four times more accurate than the transmitter,
and allow the input pressure to stabilize for 10seconds before entering any values.
Calibrate the Field Communicator with the Sensor Trim Function
Calibrate the sensor with a Field Communicator using the sensor trim function.
Procedure
1. Assemble and power the entire calibration system including a transmitter, Field
Communicator, power supply, pressure input source, and readout device.
2. From the Home screen, enter the Fast Key sequence Sensor Trim.
3. Select 2: Lower Sensor Trim. The lower sensor trim value should be the sensor trim
point that is closest to zero.
Note
Select pressure input values so that lower and upper values are equal to or outside
the 4 and 20mA points. Do not attempt to obtain reverse output by reversing the
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