Emerson Rosemount 3051 User manual

Quick Start Guide
00825-0100-5007, Rev DC
June2023
Rosemount™ 3051 Pressure
Transmitter

Contents
About this guide .......................................................................................................................... 3
System readiness......................................................................................................................... 5
Transmitter installation...............................................................................................................7
Safety instrumented systems installation...............................................................................21
Product certifications................................................................................................................ 22
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1 About this guide
This guide provides basic guidelines for Rosemount 3051 Pressure
Transmitters. It does not provide instructions for configuration,
diagnostics, maintenance, service, troubleshooting, Explosion-proof,
Flameproof, or intrinsically safe (I.S.) installations. Refer to
Rosemount 3051 Reference Manual for more instructions. This guide
is also available electronically at Emerson.com/Rosemount.
1.1 Safety messages
WARNING
Explosions
Explosions could result in death or serious injury.
Installation of device in an explosive environment must be in
accordance with appropriate local, national, and international
standards, codes, and practices. Review the approvals section of
the Rosemount 3051 Reference Manual for any restrictions
associated with a safe installation.
In an explosion-proof/flameproof installation, do not remove the
transmitter covers when power is applied to the unit.
Process leaks
Process leaks may cause harm or result in death.
To avoid process leaks, only use the O-ring designed to seal with the
corresponding flange adapter.
Electrical shock
Electrical shock can result in death or serious injury.
Avoid contact with the leads and terminals. High voltage that may be
present on leads can cause electrical shock.
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WARNING
Conduit/cable entries
Unless otherwise marked, the conduit/cable entries in the
housing enclosure use a ½–14 NPT form. Only use plugs,
adapters, glands, or conduit with a compatible thread form when
closing these entries.
Entries marked M20 are M20 x 1.5 thread form. On devices with
multiple conduit entries, all entries will have the same thread
form.
When installing in a hazardous location, use only appropriately
listed or Ex certified plugs, glands, or adapters in cable/conduit
entries.
Physical access
Unauthorized personnel may potentially cause significant damage to
and/or misconfiguration of end users’ equipment. This could be
intentional or unintentional and needs to be protected against.
Physical security is an important part of any security program and
fundamental to protecting your system. Restrict physical access by
unauthorized personnel to protect end users’ assets. This is true for
all systems used within the facility.
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2 System readiness
Confirm HART revision capability
•If using HART-based control or asset management systems,
confirm the HART capability of those systems prior to transmitter
installation. Not all systems are capable of communicating with
HART Revision 7. This transmitter can be configured for either
HART Revision 5 or 7.
•For instructions on how to change the HART revision of your
transmitter, see Switch HART revision mode.
2.1 Confirm correct device driver
•Verify the latest device driver (DD/DTM™) is loaded on your
systems to ensure proper communications.
•Download the latest device driver at Emerson.com or
Fieldcommgroup.org.
Rosemount 3051 device revisions and drivers
Table 2-1 provides the information necessary to ensure you have the
correct device driver and documentation for your device.
Table 2-1: Rosemount 3051 with 4-20 mA HART Protocol Device Revisions
and Files
Releas
e date
Device identification Device driver
identification
Review
instruction
s
Review
functionalit
y
NAMUR
hardwar
e
revision
(1)
(1) HART
softwar
e
revision
(2)
HART
universa
l
revision
Device
revisio
n
(3)
Rosemount
2088,
2090P, and
2090F
Pressure
transmitter
s
Change
description
Aug-16 1.1.xx 1.0.x
x
3 7 10 with HART
and 1–5 Vdc
Low Power
Protocol
Reference
Manual

with 4–20
mA HART
and 1–5 Vdc
Low Power
Protocol
(4)
5 9
Jan-13 N/A 1.0.x
x
1 7 10 (5)
5 9
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Table 2-1: Rosemount 3051 with 4-20 mA HART Protocol Device Revisions
and Files (continued)
Releas
e date
Device identification Device driver
identification
Review
instruction
s
Review
functionalit
y
NAMUR
hardwar
e
revision
(1)
(1) HART
softwar
e
revision
(2)
HART
universa
l
revision
Device
revisio
n
(3)
Rosemount
2088,
2090P, and
2090F
Pressure
transmitter
s
Change
description
Jan-98 N/A N/A 178 5 3 Reference
Manual
N/A
(1) NAMUR revision is located on the hardware tag of the device. Differences in level
3 changes, signified above by xx, represent minor product changes as defined
per NE53. Compatibility and functionality are preserved and product can be used
interchangeably.
(2) HART software revision can be read using a HART capable configuration tool. Value
shown is minimum revision that could correspond to NAMUR revisions.
(3) Device Driver file names use Device and DD Revision, e.g. 10_01. HART Protocol
is designed to enable legacy device driver revisions to continue to communicate
with new HART devices. To access new functionality, the new Device Driver must be
downloaded. It is recommended to download new Device Driver files to ensure full
functionality.
(4) HART revision 5 and 7 Selectable, local operator interface (LOI), scaled variable,
configurable alarms, and expanded engineering units.
(5) Rosemount 3051G Pressure Transmitter updated electronics hardware design.
Intrinsic Safety temperature classification change.
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3 Transmitter installation
3.1 Mount the transmitter
3.1.1 Liquid applications
Procedure
1. Place taps to the side of the line.
2. Mount beside or below the taps.
3. Mount the transmitter so that the drain/vent valves are
oriented upward.
Figure 3-1: Coplanar and In-line Liquid Applications
Coplanar In-line
Flow
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3.1.2 Gas applications
Procedure
1. Place taps in the top or side of the line.
2. Mount beside or above the taps.
Figure 3-2: Coplanar and In-line Gas Applications
Coplanar In-line
Flow
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3.1.3 Steam applications
Procedure
1. Place taps to the side of the line.
2. Mount beside or below the taps.
3. Fill impulse lines with water.
Figure 3-3: Coplanar and In-line Steam Applications
Coplanar In-line
Flow
Figure 3-4: Panel and Pipe Mounting
*5/6 x 1½ panel bolts are customer supplied
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3.1.4 Bolting considerations
If the transmitter installation requires assembly of the process
flanges, manifolds, or flange adapters, follow the assembly
guidelines to ensure a tight seal for optimal performance
characteristics of the transmitters. Use only bolts supplied with the
transmitter or sold by Emerson as spare parts. Figure 3-5 illustrates
common transmitter assemblies with the bolt length required for
proper transmitter assembly.
Figure 3-5: Common Transmitter Assemblies
A. Transmitter with coplanar flange
B. Transmitter with coplanar flange and optional flange adapters
C. Transmitter with traditional flange and optional flange adapters
D. Transmitter with coplanar flange and optional manifold and
flange adapters
Bolts are typically carbon steel (CS) or stainless steel (SST). Confirm
the material by viewing the markings on the head of the bolt and
referencing Table 3-1. If bolt material is not shown in Table 2-1,
contact a local Emerson representative for more information.
Use the following bolt installation procedure:
Procedure
1. CS bolts do not require lubrication and the SST bolts are
coated with a lubricant to ease installation. However, no
additional lubricant should be applied when installing either
type of bolt.
2. Finger-tighten the bolts.
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3. Torque the bolts to the initial torque value using a crossing
pattern. See Table 3-1 for initial torque value.
4. Torque the bolts to the final torque value using the same
crossing pattern. See Table 3-1 for final torque value.
5. Verify that the flange bolts are protruding through the isolator
plate before applying pressure.
Table 3-1: Torque Values for the Flange and Flange Adapter
Bolts
Bolt material Head
markings
Initial torque Final torque
CS
B7M


300 in-lb

650 in-lb
SST
316
316
316
SW
316
STM
316
R
B8M

150 in-lb 300 in-lb
3.1.5 In-line gage transmitter orientation
The low side pressure port (atmospheric reference) on the in-line
gage transmitter is located in the neck of the transmitter, behind the
housing. The vent path is 360° around the transmitter between the
housing and sensor. (See Figure 3-6)
Keep the vent path free of any obstruction, including but not limited
to paint, dust, and lubrication by mounting the transmitter so that
the process can drain away.
Figure 3-6: In-line Gage Low Side Pressure Port
A
A. Low side pressure port (atmospheric reference)
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3.1.6 Consider housing rotation
To improve field access to wiring or to better view the optional LCD
display:
Procedure
1. Loosen the housing rotation set screw using a -in. hex wrench.
2. Turn the housing left or right maximum up to 180° from its
original position.(1)
Note
Over-rotating can damage the transmitter.
3. Re-tighten the housing rotation set screw to no more than 7
in-lb when desired location is reached.
Figure 3-7: Housing Rotation Set Screw
A
A. Housing rotation set screw (5/64-in.)
CAUTION
Over rotation of housing may cause damage to module
communication cable.
3.2 Set the switches
Procedure
1. Set alarm and security switch configuration before installation
as shown in Figure 3-8.
2. The alarm switch sets the analog output alarm to high or low.
3. Default alarm is high.
4. The security switch allows (unlocked symbol) or prevents
(locked symbol) any configuration of the transmitter.
(1) Rosemount 3051D original position aligns with “H” side; Rosemount 3051G
original position is the opposite side of bracket holes.
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5. Default security is off (unlocked symbol).
6. If the transmitter is installed, secure the loop, and remove
power.
7. Remove the housing cover opposite the field terminal side.
Do not remove the instrument cover in explosive atmospheres
when the circuit is live.
8. Slide the security and alarm switches into the preferred
position using a small screwdriver.
9. Reattach the transmitter cover. The cover must be fully
engaged to comply with explosion-proof requirements.
Figure 3-8: Transmitter Electronics Board
Without LCD display With LCD/LOI display
A
B

A. Alarm
B. Security
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3.3 Connect the wiring and power up
Figure 3-9: Transmitter Wiring Diagrams (4–20 mA)
A
B
C
A. 24 Vdc supply
B. RL≥ 250
C. Current meter (optional)
Shielded twisted pair cable should be used for best results. Use 24
AWG or larger wire that does not exceed 5,000 ft. (1500 m) in length.
If applicable, install wiring with a drip loop. Arrange the drip loop so
the bottom is lower than the conduit connections and the transmitter
housing.
CAUTION
Installation of the transient protection terminal block does not
provide transient protection unless the Rosemount 3051 case is
properly grounded.
Do not run signal wiring in conduit or open trays with power wiring,
or near heavy electrical equipment.
Do not connect the powered signal wiring to the test terminals.
Power could damage the test diode in the terminal block.
Use the following steps to wire the transmitter:
Procedure
1. Remove the housing cover on the FIELD TERMINALS side.
2. Connect the positive lead to the “+” terminal (PWR/COMM) and
the negative lead to the “–” terminal.
3. Ground housing to fulfill local grounding regulations.
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4. Ensure proper grounding. It is important that the instrument
cable shield be:
a) Trimmed close and insulated from touching the
transmitter housing
b) Connected to the next shield if cable is routed through
a junction box
c) Connected to a good earth ground at the power supply
end
5. If transient protection is needed, refer to "Grounding for
transient terminal block" for grounding instructions.
6. Plug and seal unused conduit connections.
7. Replace the housing cover.
Figure 3-10: Wiring
DP
A
B
C
A. Insulate shield and shield drain wire.
B. Insulate exposed shield drain wire.
C. Connect shield back to the power supply ground.
3.3 Grounding for transient terminal block
Ground termination is provided on the outside of the electronics
housing and inside the terminal compartment. These grounds are
used when the transient protection terminal blocks are installed. It is
recommended that 18 AWG or larger wire is used to connect housing
ground to earth ground (internal or external).
If the transmitter is currently not wired for power up and
communication, follow Connect the wiring and power up. When the
transmitter is properly wired, refer to Figure 3-10 for internal and
external transient grounding locations.
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3.4 Verifying configuration
Verify the configuration using any HART-capable configuration tool.
Configuration instructions for a Field Communicator are included in
this step. See Rosemount 3051 Reference Manual for configuration
instructions using AMS Device Manager.
3.4.1 Verifying configuration with a Field Communicator
A Rosemount 3051 DD must be installed on the Field Communicator
to verify configuration. Fast Key sequences for the latest DD are
shown in Table 2-2. For Fast Key sequences using legacy DD's,
contact your local Emerson representative.
Note
Emerson recommends installing the latest DD to access the complete
functionality. Visit Field Communicator for information on updating
the DD library.
Procedure
Verify device configuration using the Fast Key sequences in Table 2-2.
a) A check (✓) indicates the basic configuration parameters. At
minimum, these parameters should be verified as part of
configuration and startup.
b) A (7) indicates availability only in HART Revision 7 mode.
Function Fast Key sequence
HART 7 HART 5
✓Alarm and Saturation Levels 2, 2, 2, 5, 7 2, 2, 2, 5, 7
✓Damping 2, 2, 1, 1, 5 2, 2, 1, 1, 5
✓Range Values 2, 2, 2, 2, 2, 2
✓Tag 2, 2, 7, 1, 1 2, 2, 7, 1, 1
✓Transfer Function 2, 2, 1, 1, 6 2, 2, 1, 1, 6
✓Units 2, 2, 1, 1, 4 2, 2, 1, 1, 4
 Burst Mode 2, 2, 5, 3 2, 2, 5, 3
 Custom Display Configuration 2, 2, 4 2, 2, 4
 Date 2, 2, 7, 1, 4 2, 2, 7, 1, 3
 Descriptor 2, 2, 7, 1, 5 2, 2, 7, 1, 4
 Digital to Analog Trim (4–20 mA
output)
3, 4, 2 3, 4, 2
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 Function Fast Key sequence
HART 7 HART 5
 Disable Configuration Buttons 2, 2, 6, 3 2, 2, 6, 3
 Rerange with Keypad 2, 2, 2, 1 2, 2, 2, 1
 Loop Test 3, 5, 1 3, 5, 1
 Lower Sensor Trim 3, 4, 1, 2 3, 4, 1, 2
 Message 2, 2, 7, 1, 6 2, 2, 7, 1, 5
 Scaled D/A Trim (4–20 mA output) 3, 4, 2 3, 4, 2
 Sensor Temperature/Trend
(Rosemount 3051S)
3, 3, 3 3, 3, 3
 Upper Sensor Trim 3, 4, 1, 1 3, 4, 1, 1
 Digital Zero Trim 3, 4, 1, 3 3, 4, 1, 3
 Password 2, 2, 6, 5 2, 2, 6, 4
 Scaled Variable 3, 2, 2 3, 2, 2
 HART revision 5 to HART Revision 7
switch
2, 2, 5, 2, 3 2, 2, 5, 2, 3
✓Long Tag 2, 2, 7, 1, 2 N/A
✓Find Device 3, 4, 5 N/A
✓Simulate Digital Signal 3, 4, 5 N/A
Note
See Figure 3-10 to confirm external button functionality.
3.4.2 Verify configuration with LOI
The optional LOI can be used for commissioning the device. The
LOI is a two button design with internal and external buttons. The
internal buttons are located on the display of the transmitter, while
the external buttons are located underneath the top metal tag. To
activate the LOI, push any button. LOI button functionality is shown
on the bottom corners of the display. See Table 3-2 and Figure 3-12
for button operation and menu information.
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Figure 3-11: Internal and External LOI Buttons
AB
A. Internal buttons
B. External buttons
Table 3-2: LOI Button Operation
Button

Left No SCROLL
Right Yes ENTER
Figure 3-12: LOI Menu
Assign PV
HART Revision
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3.4.3 Switch HART revision mode
If the HART configuration tool is not capable of communicating with
HART Revision 7, the Rosemount 3051 will load a generic menu with
limited capability. The following procedures will switch the HART
revision mode from the generic menu:
Procedure
Manual Setup → Device Information → Identification → Message
a) To change to HART Revision 5, Enter: “HART5” in the Message
field
b) To change to HART Revision 7, Enter: “HART7” in the Message
field
3.5 Trim the transmitter
Devices are calibrated by the factory. Once installed, it is
recommended to perform a zero trim on gage and differential
pressure transmitters to eliminate error due to mounting position
or static pressure effects. A zero trim can be performed using either a
Field Communicator or configuration buttons.
For instructions using AMS Device Manager, see the Rosemount 3051
Reference Manual.
Note
When performing a zero trim, ensure that the equalization valve is
open and all wet legs are filled to the correct level.
Procedure
1. Choose your trim procedure.
a) Analog zero trim – Sets the analog output to 4 mA.
2. Also referred to as a “rerange,” it sets the lower range value
(LRV) equal to the measured pressure.
3. The display and digital HART output remains unchanged.
a) Digital zero trim – Recalibrates the sensor zero.
4. The LRV is unaffected. The pressure value will be zero (on
display and HART output). 4 mA point may not be at zero.
5. This requires that the factory calibrated zero pressure is within
a range of 3% of the URV [0 + 3% x URV].
Example: URV = 250 inH2O Applied Zero Pressure = + 0.03 x
250 inH2O = + 7.5 inH2O (compared to factory settings) values
outside this range will be rejected by the transmitter.
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3.5.1 Trimming with a Field Communicator
Procedure
1. Connect the Field Communicator. See "Connect the wiring and
power up" for instructions.
2. Follow the HART menu to perform the desired zero trim.
Table 3-3: Zero Trim Fast Keys
 Analog zero (Set 4 mA) Digital zero
Fast Key sequence 3, 4, 2 3, 4, 1, 3
Figure 3-13: External Configuration Buttons
AB C
D
A. LOI
B. Analog zero and span
C. Digital zero
D. Configuration buttons
Perform trim with LOI (option M4) for a zero trim.
3. Set the transmitter pressure.
4. See Figure 3-12 for the operating menu.
a) Perform an analog zero trim by selecting Rerange.
b) Perform a digital zero trim by selecting Zero Trim.
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