Emerson Rosemount 2051 Wireless Series User manual

Quick Start Guide
00825-0600-4101, Rev DB
September2023
Rosemount™ 2051 Pressure
Transmitter and Rosemount 2051CF
Series Flow Meter
with FOUNDATION™ Fieldbus Protocol

Contents
About this guide .......................................................................................................................... 3
System readiness......................................................................................................................... 5
Mount the transmitter.................................................................................................................7
Tagging....................................................................................................................................... 14
Rotate housing........................................................................................................................... 15
Set the switches......................................................................................................................... 16
Wire, ground, and power up.................................................................................................... 18
Configuration............................................................................................................................. 21
Zero trim the transmitter..........................................................................................................29
Rosemount 2051 product certifications..................................................................................30
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1 About this guide
This guide provides basic guidelines for Rosemount 2051 Pressure
Transmitters. It does not provide instructions for configuration,
diagnostics, maintenance, service, troubleshooting, explosionproof,
flameproof, or intrinsically safe (I.S.) installations. Refer to the
Rosemount 2051 Pressure Transmitter Reference Manual for
more instructions. This guide is also available electronically at
Emerson.com.
1.1 Safety messages
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.
In an explosionproof/flameproof installation, do not remove the
transmitter covers when power is applied to the transmitter.
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 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 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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2 System readiness
Note
Before installing the transmitter, confirm the correct device driver is
loaded on the host systems.
2.1 Confirm correct device driver
•Verify the correct device driver (DD/DTM™) is loaded on your
systems to ensure proper communications.
•Download the correct device driver at your host vendor download
site, Emerson.com/DeviceInstallKits, or FieldCommGroup.org.
2.1.1 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 2051 FOUNDATION™ Fieldbus device revisions and files
Device
revision
(1)
Host Device
driver
(DD)(2)
Obtain at Device driver
(DTM)
Reference
document
2 All DD4: DD Rev
1
FieldComm
Group
Emerson.com 00809-0200-41
01,
Rev BA or
newer
All DD5: DD Rev
1
FieldComm
Group
Emerson AMS Device
Manager V
10.5 or
higher: DD
Rev 2
Emerson.com
Emerson AMS Device
Manager V 8
to 10.5: DD
Rev 1
Emerson.com
Emerson 375/475: DD
Rev 2
475 Field
Communicator
1 All DD4: DD Rev
4
FieldComm
Group
Emerson.com 00809-0200-41
01,
Rev BA
All DD5: NA N/A
Emerson AMS Device
Manager V 8
or higher:
DD Rev 2
Emerson.com
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Table 2-1: Rosemount 2051 FOUNDATION™ Fieldbus device revisions and
files (continued)
Device
revision
(1)
Host Device
driver
(DD)(2)
Obtain at Device driver
(DTM)
Reference
document
Emerson 375/475: DD
Rev 2
475 Field
Communicator
(1) FOUNDATIONFieldbus® device revision can be read using a FOUNDATION Fieldbus
capable configuration tool.
(2) Device driver file names use device and DD revision. To access functionality, the
correct device driver must be installed on your control and asset management
hosts and on your configuration tools.
Figure 2-1: Installation flowchart
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3 Mount the transmitter
3.1 Liquid applications
Procedure
1. Place taps to the side of the line.
2. Mount beside or below the taps.
3. Mount the transmitter so the drain/vent valves are oriented
upward.
3.2 Gas applications
Procedure
1. Place taps on the top or side of the line.
2. Mount beside or above the taps.
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3.3 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.
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3.4 Panel and pipe mounting
Figure 3-1: Panel and pipe mounting
Panel mount(1) Pipe mount
Coplanar flange
Traditional flange

Rosemount 2051T
(1) 5/16 × 1½ panel bolts are customer supplied.
3.5 Install bolts
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
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characteristics of the transmitters. Use only bolts supplied with the
transmitter or sold by Emerson as spare parts. Figure 3-2 illustrates
common transmitter assemblies with the bolt length required for
proper transmitter assembly.
Figure 3-2: Common transmitter assemblies
A
4 × 1.75-in.
(44 mm)
D
4 × 1.75-in.
(44 mm)
4 × 2.25-in.
(57 mm)
C
4 ×1.75-in.
(44 mm) 4 ×1.50-in.
(38 mm)
B
4 × 2.88-in.
(73 mm)
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 3-1,
contact a local Emerson representative for more information.
Carbon steel bolts do not require lubrication, and the stainless steel
bolts are coated with a lubricant to ease installation. However, do not
apply any additional lubricant when installing either type of bolt.
Procedure
1. Tighten the bolts by hand.
2. Torque the bolts to the initial torque value using a crossing
pattern.
See Table 3-1 for initial torque value.
3. Torque the bolts to the final torque value using the same
crossing pattern.
See Table 3-1 for final torque value.
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4. Verify the flange bolts are protruding through the sensor
module bolt holes 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.
3.6 O-rings
The two styles of Rosemount flange adapters (Rosemount
3051/2051/2024/3095) each require a unique O-ring (see Figure 3-3).
Use only the O-ring designed for the corresponding flange adapter.
WARNING
Failure to install proper flange adapter O-rings may cause process
leaks, which can result in death or serious injury.
The two flange adapters are distinguished by unique O-ring grooves.
Only use the O-ring that is designed for its specific flange adapter, as
shown in Figure 3-3. When compressed, PTFE O-rings tend to cold
flow, which aids in their sealing capabilities.
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Figure 3-3: O-rings
A. Flange adapter
B. O-ring
C. PFTE based
D. Elastomer
NOTICE
Replace PTFE O-rings if you remove the flange adapter.
3.7 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.
For M20 threads, install conduit plugs to full thread engagement or
until mechanical resistance is met.
3.8 In-line gauge transmitter orientation
The low side pressure port (atmospheric reference) on the in-line
gauge 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 3-4.)
Keep the vent path free of any obstruction, including but not limited
to paint, dust, and lubrication by mounting the transmitter so fluids
can drain away.
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Figure 3-4: In-line gauge low side pressure port
A
A. Pressure port location
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4 Tagging
4.1 Commissioning (paper) tag
To identify which device is at a particular location use the removable
tag provided with the transmitter. Ensure the physical device tag
(PD tag field) is properly entered in both places on the removable
commissioning tag and tear off the bottom portion for each
transmitter.
Figure 4-1: Commissioning tag
A. Device revision
Note
The device description loaded in the host system must be
at the same revision as this device. You can download the
device description from the host system website or Emerson.com/
Rosemount by selecting Download Device Drivers under Product
Quick Links. You can also visit FieldComm Group and select
Resources.
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5 Rotate housing
To improve field access to wiring or to better view the optional LCD
display:
Procedure
1. Loosen the housing rotation set screw using a 5/64 -in. hex
wrench.
Figure 5-1: Housing rotation
A
A. Housing rotation set screw (5/64-in.)
2. Rotate the housing clockwise to the desired location.
3. If the desired location cannot be achieved due to thread
limitation, rotate the housing counterclockwise to the desired
location (up to 360° from thread limit).
4. Retighten the housing rotation set screw to no more than 7
in.-lbs. when desired location is reached.
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6 Set the switches
Set simulate and security switch configuration before installation as
shown in Figure 6-1.
•The simulate switch enables or disables simulated alerts and
simulated AI Block status and values. The default simulate switch
position is enabled.
•The security switch allows (unlocked symbol) or prevents (locked
symbol) any configuration of the transmitter.
•Default security is off (unlocked symbol).
•You can enable or disable the security switch in the software.
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.
WARNING
Do not remove the instrument cover in explosive atmospheres
when the circuit is live.
3. Slide the security and simulate switches into the preferred
position.
4. Replace the housing cover.
NOTICE
Emerson recommends tightening the cover until there is no
gap between the cover and housing.
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Figure 6-1: Simulate and security switches
A. Simulate disabled position
B. Simulate switch
C. Simulate enabled position (default)
D. Security locked position
E. Security switch
F. Security unlocked position (default)
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7 Wire, ground, and power up
Prerequisites
Use copper wire of sufficient size to ensure that the voltage across
the transmitter power terminals does not drop below 9 Vdc. Power
supply voltage can be variable, especially under abnormal conditions,
such as when operating on battery backup. Emerson recommends
using a minimum of 12 Vdc under normal operating conditions and
using shielded twisted pair Type A cable.
Procedure
1. To power the transmitter, connect the power leads to the
terminals indicated on the terminal block label.
Figure 7-1: Wiring terminals
DP
A
B
C
F
D
E
A. Minimize distance
B. Trim shield and insulate
C. Protective grounding terminal (do not ground cable shield
at the transmitter)
D. Insulate shield
E. Minimize distance
F. Connect shield back to the power supply ground
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NOTICE
The Rosemount 2051 power terminals are polarity insensitive,
which means the electrical polarity of the power leads does
not matter when connecting to the power terminals. If polarity
sensitive devices are connected to the segment, follow
terminal polarity. When wiring to the screw terminals,
Emerson recommends using crimped legs.
2. 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.
No additional power is needed.
NOTICE
Emerson does not recommend using a pin or ferrule wire, as
the connection may be more susceptible to loosening over
time or under vibration.
7.1 Power supply
The transmitter requires between 9 and 32 Vdc (9 and 30 Vdc for
intrinsic safety, and 9 and 17.5 Vdc for FISCO intrinsic safety) to
operate and provide complete functionality.
7.2 Power conditioner
A Fieldbus segment requires a power conditioner to isolate the
power supply, filter, and decouple the segment from other segments
attached to the same power supply.
7.3 Grounding
NOTICE
Do not ground the Fieldbus segment's signal wiring. Grounding out
one of the signal wires will shut down the entire Fieldbus segment.
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7.4 Ground shield wire
NOTICE
To protect the Fieldbus segment from noise, grounding techniques
for shield wire require a single grounding point for shield wire to
avoid creating a ground loop.
Connect the cable shields for the entire segment to a single good
earth ground at the power supply.
7.5 Signal termination
Install a terminator at the beginning and at the end of every Fieldbus
segment.
7.6 Locate devices
Devices are frequently installed, configured, and commissioned over
time by different personnel. Emerson provides a Locate Device
capability to assist personnel in finding a device.
From the device Overview screen, select Locate Device. This will
launch a method allowing you to display a Find me message or
enter a custom message to display on the device LCD display.
When you exit the Locate Device method, the device LCD display
automatically returns to normal operation.
Note
Some hosts do not support Locate Device in the device driver (DD).
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20 Rosemount 2051 and 2051CF