Emerson Rosemount 2051G User manual

Quick Start Guide
00825-0700-4101, Rev AD
May 2019
Rosemount™ 2051G Pressure
Transmitter
with 4-20 mA HART® Protocol (Revision 5
and 7)

Contents
About this guide...........................................................................................................................3
System readiness......................................................................................................................... 5
Mount the transmitter..................................................................................................................6
Set the switches........................................................................................................................... 9
Connect the wiring and power up...............................................................................................10
Verify transmitter configuration.................................................................................................13
Trim the transmitter...................................................................................................................19
Safety instrumented systems..................................................................................................... 22
Product certifications................................................................................................................. 23
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1 About this guide
This guide provides basic guidelines for Rosemount™ 2051G Transmitters. It
does not provide instructions for configuration, diagnostics, maintenance,
service, troubleshooting, Explosion-proof, Flameproof, or intrinsically safe
(I.S.) installations. See the Rosemount 2051G Reference Manual for more
information.
WARNING
Explosions could result in death or serious injury.
Installation of these transmitters in an explosive environment must be in
accordance with the appropriate local, national, and international
standards, codes, and practices. Review the approvals section of the
Rosemount 2051 Reference Manual for any restrictions associated with a
safe installation.
Before connecting a HART-based communicator in an explosive
atmosphere, make sure the instruments in the loop are installed in
accordance with intrinsically safe or non-incendive field wiring practices.
In an explosion-proof/flameproof installation, do not remove the
transmitter covers when power is applied to the unit.
Process leaks could result in death or serious injury.
To avoid process leaks, only use the O-ring designed to seal with the
corresponding flange adapter.
Electrical shock could cause death or serious injury.
Avoid contact with the leads and terminals. High voltage that may be
present on leads can cause electrical shock.
Conduit/cable entries
Unless marked, the conduit/cable entries in the transmitter housing use a
½–14 NPT thread form. Entries marked “M20” are M20 × 1.5 thread form.
On devices with multiple conduit entries, all entries will have the same
thread form. Only use plugs, adapters, glands, or conduit with a
compatible thread form when closing these entries.
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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 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
2.1 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 the transmitter,
see Switch HART revision mode.
2.2 Confirm correct device driver
Procedure
1. Verify the latest Device Driver (DD/DTM™) is loaded on your systems
to ensure proper communications.
2. Reference Emerson.com or FieldCommGroup.org for the latest DD.
3. Select desired product and download the DD.
a) Reference Table 2-1 for the correct DD.
Table 2-1: Device Revisions and Files
Identify device Find device driver
files
Review
instructio
ns
Review
functionali
ty
Softwar
e release
date
NAMUR
hardwar
e
revision(
1)
NAMUR
software
revision(
1)
HART
software
revision(
2)
HART
universa
l revision
Device
revision(
3)
00809-04
00-4101
Changes to
software(4)
June
2016
1.1.xx 1.0.xx 03 7 10 Reference
Manual
(4)
5 9
(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, expanded engineering units. Updated electronics hardware design.
Intrinsically Safe temperature classification change.
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3 Mount the transmitter
Mount directly to the impulse line without using an additional mounting
bracket or mount directly to a wall, panel, or two-inch pipe using an optional
mounting bracket.
Figure 3-1: Transmitter Direct Mounting
A. Process connection
Note
Do not apply torque directly to the electronics housing. To avoid damage,
apply torque only to the hex-shaped process connection.
Figure 3-2: Panel and Pipe Mounting
Panel mount Pipe mount
3.1 Liquid flow applications
Procedure
1. Place taps to the side of the line.
2. Mount beside or below the taps.
3. Mount the transmitter so the drain/vent valves are oriented upward.
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3.2 Gas flow applications
Procedure
1. Place taps in the top or side of the line.
2. Mount level or above the taps.
3.3 Steam flow applications
Procedure
1. Place taps to the side of the line.
2. Mount beside or below the taps.
3. Fill impulse lines with water.
3.4 Environmental seal for housing
Thread sealing (PTFE) tape or paste on male threads of conduit is required to
provide a water/dust tight conduit seal and meets requirements of NEMA®
Type 4X, IP66, and IP68. Consult factory if other ingress protection ratings
are required.
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For M20 threads, install conduit plugs to full thread engagement or until
mechanical resistance is met.
3.5 Gage transmitter orientation
The low side pressure port (atmospheric reference) on the inline 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 3-3).
CAUTION
Keep the vent path free of any obstruction, including but not limited to
paint, dust, and lubrication by mounting the transmitter so the
contaminants can drain away.
Figure 3-3: Gage Low Side Pressure Port
ALow side pressure port (atmospheric reference)
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4 Set the switches
Set alarm and security switch configuration before installation as shown in
Figure 4-1.
•The alarm switch sets the analog output alarm to high or low. Default
alarm is high.
•The security switch allows ( ) or prevents ( ) any configuration of the
transmitter. Default security is off ( ).
Use the following procedure to change the switch configuration:
Procedure
1. If the transmitter is installed, secure the loop, and remove power.
2. Remove the housing cover opposite the field terminal side. Do not
remove the instrument cover in explosive atmospheres when the
circuit is live.
3. Slide the security and alarm switches into the preferred position
using a small screwdriver.
4. Reattach the transmitter cover. The cover must be fully engaged to
comply with explosion-proof requirements.
Figure 4-1: Transmitter Electronics Board
Without LCD display With LOI/LCD display
A. Alarm
B. Security
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5 Connect the wiring and power up
CAUTION
Do not tamper with or remove the electronics board in the Rosemount™
2051G. This will cause permanent damage to the transmitter.
Shielded twisted pair cable should be used for best results. Use 24 AWG or
larger wire that does not exceed 5000 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.
Figure 5-1: Wiring the Transmitter (4–20 mA HART)
AVdc supply
BRL ≥ 250 (necessary for HART® communication only)
CAUTION
Installation of the transient protection terminal block does not provide
transient protection unless the transmitter 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.
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2. Connect the leads as shown in Figure 5-1.
3. Tighten the terminal screws to ensure full contact with the terminal
block screw and washer. When using a direct wiring method, wrap
wire clockwise to ensure it is in place when tightening the terminal
block screw.
Note
The use of a pin or ferrule wire terminal is not recommended as the
connection may be more susceptible to loosening over time or under
vibration.
4. Ground housing to fulfill local grounding regulations.
5. Ensure proper grounding. It is important that the instrument cable
shield:
•Be trimmed close and insulated from touching the transmitter
housing
•Be connected to the next shield if cable is routed through a
junction box
•Be connected to a good earth ground at the power supply end
6. If transient protection is needed, refer to Grounding for transient
terminal block section for grounding instructions.
7. Plug and seal unused conduit connections.
8. Replace the housing cover.
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Figure 5-2: Grounding
DP
A
B
C
D
E
A. Trim shield and insulate
B. Insulate shield
C. Terminate cable shield drain wire to earth ground
D. Internal ground location
E. External ground location
5.1 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 5-2 for internal and external transient grounding
locations.
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6 Verify transmitter configuration
Verify the configuration using any HART® capable configuration tool or LOI -
option code M4. Configuration instructions for a Field Communicator and
LOI are included in this step. See Rosemount™ 2051 Reference Manual for
configuration instructions using AMS Device Manager.
6.1 Verifying configuration with a Field Communicator
A Rosemount™ 2051 DD must be installed on the Field Communicator to
verify configuration. Fast Key sequences vary depending on device and DD
revisions. Use the Determine Fast Key sequence table process below to
identify the appropriate Fast Key sequences.
6.2 Field Communicator user interface
6.2.1 Determine Fast Key sequence table
Procedure
1. Connect Field Communicator to Rosemount™ 2051G.
2. If Home screen matches Figure 6-1, refer to Table 6-1 for Fast Key
sequences.
3. If Home screen matches Figure 6-2:
a) Perform Fast Key sequence 1, 7, 2 to identify Field Revision
and HART® Revision.
b) Refer to Table 6-2 and the appropriate column based on your
Field Revision and HART Revision for Fast Key sequences.
Note
Emerson recommends installing the latest DD to access the
complete functionality. Visit Emerson.com or FieldCommGroup.org.
Figure 6-1: Traditional Interface
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Figure 6-2: Device Dashboard
Note
A check (✓) indicates the basic configuration parameters. At
minimum, these parameters should be verified as part of the
configuration and startup procedure.
Table 6-1: Traditional Interface Fast Keys
Function Fast Key sequence
✓Analog Output Alarm 1,4,3,2,4
Burst Mode Control 1,4,3,3,3
Burst Option 1,4,3,3,4
Calibration 1,2,3
✓Damping 1,3,5
Date 1,3,4,1
Descriptor 1,3,4,2
Digital To Analog Trim (4–
20 mA Output)
1,2,3,2,1
Disable Local Span/Zero
Adjustment
1,4,4,1,7
Field Device Info 1,4,4,1
Keypad Input 1,2,3,1,1
Loop Test 1,2,2
Lower Range Value 4,1
Lower Sensor Trim 1,2,3,3,2
Message 1,3,4,3
Meter Type 1,3,6,1
Number of Requested 1,4,3,3,2
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Table 6-1: Traditional Interface Fast Keys (continued)
Function Fast Key sequence
Output Trim 1,2,3,2
Percent Range 1,1,2
Poll Address 1,4,3,3,1
✓Range Values 1,3,3
Rerange 1,2,3,1
Scaled D/A Trim (4–20 mA 1,2,3,2,2
Self Test (Transmitter) 1,2,1,1
Sensor Info 1,4,4,2
Sensor Trim (Full Trim) 1,2,3,3
Sensor Trim Points 1,2,3,3,5
Status 1,2,1,2
✓Tag 1,3,1
Transmitter Security (Write
Protect)
1,3,4,4
✓Units (Process Variable) 1,3,2
Upper Range Value 5,2
Upper Sensor Trim 1,2,3,3,3
Zero Trim 1,2,3,3,1
Note
A check (✓) indicates the basic configuration parameters. At
minimum, these parameters should be verified as part of the
configuration and startup procedure.
Table 6-2: Device Dashboard Fast Keys
Function Fast Key sequence
Field Revision Rev 3 Rev 5 Rev 7
HART Revision HART 5 HART 5 HART 7
✓Alarm and Saturation
Levels
N/A 2,2,2,5,7 2,2,2,5,7
✓Damping 2,2,1,2 2,2,1,1,5 2,2,1,1,5
✓Range Values 2,2,2 2,2,2 2,2,2
✓Tag 2,2,6,1,1 2,2,7,1,1 2,2,7,1,1
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Table 6-2: Device Dashboard Fast Keys (continued)
Function Fast Key sequence
Field Revision Rev 3 Rev 5 Rev 7
HART Revision HART 5 HART 5 HART 7
✓Transfer Function 2,2,1,3 2,2,1,1,6 2,2,1,1,6
✓Units 2,2,1,1 2,2,1,1,4 2,2,1,1,4
Burst Mode 2,2,4,1 2,2,5,3 2,2,5,3
Custom Display
Configuration
2,2,3 2,2,4 2,2,4
Date 2,2,6,1,4 2,2,7,1,3 2,2,7,1,4
Descriptor 2,2,6,1,5 2,2,7,1,4 2,2,7,1,5
Digital to Analog Trim
(4-20 mA Output)
3,4,2 3,4,2 3,4,2
Disable Configuration
Buttons
2,2,5,2 2,2,6,3 2,2,6,3
Rerange with Keypad 2,2,2 2,2,2,1 2,2,2,1
Loop Test 3,5,1 3,5,1 3,5,1
Upper Sensor Trim 3,4,1,1 3,4,1,1 3,4,1,1
Lower Sensor Trim 3,4,1,2 3,4,1,2 3,4,1,2
Message 2,2,6,1,5 2,2,7,1,5 2,2,7,1,6
Sensor Temperature/Trend 3,3,2 3,3,3 3,3,3
Digital Zero Trim 3,4,1,3 3,4,1,3 3,4,1,3
Password N/A 2,2,6,4 2,2,6,5
Scaled Variable N/A 3,2,2 3,2,2
HART Revision 5 to HART
Revision 7 switch
N/A 2,2,5,2,3 2,2,5,2,3
Long Tag N/A N/A 2,2,7,1,2
Find Device N/A N/A 3,4,5
Simulate Digital Signal N/A N/A 3,4,5
6.3 Verifying 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
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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 6-3 and Figure 6-4 for button operation and menu information.
Figure 6-3: Internal and External LOI Buttons
A. Internal buttons
B. External buttons
Note
See Figure 7-1 to confirm external button functionality.
Table 6-3: LOI Button Operation
Butto
n
Left No SCROLL
Right Yes ENTER
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Figure 6-4: LOI Menu
Assign PV
HART Revision
6.3.1 Switch HART revision mode
If the HART configuration tool is not capable of communicating with HART®
Revision 7, the Rosemount™ 2051G 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.
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7 Trim the transmitter
Devices are calibrated by the factory. Once installed, it is recommended to
perform a zero trim on gage and absolute 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™ 2051
Reference Manual.
Note
When performing a zero trim, ensure the equalization valve is open and all
wet legs are filled to the correct level.
CAUTION
It is not recommended to zero an absolute transmitter
Procedure
Select trim procedure.
a) Analog Zero Trim – Sets the analog output to 4 mA.
•Also referred to as a “rerange,” it sets the Lower Range Value
(LRV) equal to the measured pressure.
•The display and digital HART output remains unchanged.
b) Digital Zero Trim – Recalibrates the sensor zero.
•The LRV is unaffected. The pressure value will be zero (on display
and HART output). 4 mA point may not be at zero.
•This requires that the factory calibrated zero pressure is within a
range of three percent of the URV [0 ± 3% x URV].
7.1 Example
URV = 150 psi
Applied Zero Pressure = + 0.03 x 150 psi = + 4.5 psi (compared to factory
settings) values outside this range will be rejected by the transmitter
7.2 Trimming with a Field Communicator
Procedure
1. Connect the Field Communicator, see Connect the wiring and power
up for instructions.
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2. Follow the HART menu to perform the desired zero trim.
Table 7-1: Zero Trim Fast Keys
Analog zero (set 4 mA) Digital zero
Fast Key Sequence 3, 4, 2 3, 4, 1, 3
7.3 Trimming with configuration buttons
A zero trim is to be performed using one of the three possible sets of
external configuration buttons located under the top tag.
To access the configuration buttons, loosen the screw and slide the tag on
the top of the transmitter. Confirm the functionality using Figure 6-3.
Figure 7-1: External Configuration Buttons
A. Configuration buttons
B. LOI
C. Analog zero and span
D. Digital zero
Use the following procedures to perform a Zero Trim:
7.3.1 Perform trim with LOI (option M4)
Procedure
1. Set the transmitter pressure.
2. See Figure 6-3 for the operating menu.
a) Select Rerange to perform an analog zero trim.
b) Select Zero Trim to perform a digital zero trim.
7.3.2 Perform trim with analog zero and span (option D4)
Procedure
1. Set the transmitter pressure.
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