Emerson Rosemount 2051CF series User manual

Quick Start Guide
00825-0600-4101, Rev CA
March 2020
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
Housing rotation........................................................................................................................ 15
Set the switches......................................................................................................................... 16
Wire, ground, and power up.......................................................................................................18
Configure................................................................................................................................... 21
Zero trim the transmitter........................................................................................................... 28
Product certifications................................................................................................................. 29
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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, Explosion-proof, Flameproof, or
intrinsically safe (I.S.) installations. Refer to Rosemount 2051 Reference
Manual for more instructions. This guide is also available electronically at
Emerson.com/Rosemount.
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 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 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 or Fieldbus.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
Fieldbus.org Emerson.com 00809-0200-
4101,
Rev BA or
newer
All DD5: DD
Rev 1
Fieldbus.org
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
FieldCommun
icator.com
1 All DD4: DD
Rev 4
Fieldbus.org Emerson.com 00809-0200-
4101,
Rev AA
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
FieldCommun
icator.com
(1) FOUNDATION Fieldbus 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 in 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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Figure 3-1: Panel and Pipe Mounting
Panel mount(1) Pipe mount
Coplanar flange
Traditional flange
Rosemount 2051T
(1) × 1 panel bolts are customer supplied.
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3.4 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 3-2 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, no additional lubricant
should be applied when installing either type of bolt.
Use the following bolt installation procedure:
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.
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3. Torque the bolts to the final torque value using the same crossing
pattern. See Table 3-1 for final torque value.
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
3.5 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 below. 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
Note
You should replace PTFE O-rings if you remove the flange adapter.
3.6 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.
3.7 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 3-4.)
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 Gage 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.
Note
The device description loaded in the host system must be at the same
revision as this device.
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. The device description can be downloaded from the
host system website or Emerson.com/Rosemount by selecting Download
Device Drivers under Product Quick Links. You can also visit Fieldbus.org and
select End User Resources.
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5 Housing rotation
To improve field access to wiring or to better view the optional LCD display
follow the procedure steps.
Figure 5-1: Housing Rotation
A
A. Housing rotation set screw (5/64 in.)
Procedure
1. Loosen the housing rotation set screw using a 5/64 -in. hex wrench.
2. Rotate the housing clockwise to the desired location.
3. 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).
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).
•The security switch can be enabled or disabled in 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. 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.
Note
It is recommended the cover be tightened 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
Use of 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. A minimum of 12 Vdc under normal operating
conditions is recommended. Shielded twisted pair Type A cable is
recommended.
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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Note
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, terminal polarity should be followed.
When wiring to the screw terminals, the use of crimped legs is
recommended.
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.
Note
The use of a pin or a ferrule wire terminal is not recommended as the
connection may be more susceptible to loosening over time or under
vibration.
7.1 Signal wiring grounding
Do not run signal wiring in conduit or open trays with power wiring, or near
heavy electrical equipment. Grounding terminations are provided on the
outside of the electronics housing and inside the terminal compartment.
These grounds are used when transient protect terminal blocks are installed
or to fulfill local regulations.
Procedure
1. Remove the field terminals housing cover.
2. Connect the wiring pair and ground as indicated in Figure 7-1.
a) Trim the cable shield as short as practical and insulate from
touching the transmitter housing.
Note
Do NOT ground the cable shield at the transmitter; if the cable shield
touches the transmitter housing, it can create ground loops and
interfere with communications.
3. Continuously connect the cable shields to the power supply ground.
a) Connect the cable shields for the entire segment to a single
good earth ground at the power supply.
Note
Improper grounding is the most frequent cause of poor segment
communications.
4. Replace the housing cover. It is recommended that the cover be
tightened until there is no gap between the cover and the housing.
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5. Plug and seal unused conduit connections.
7.2 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.
7.3 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.
7.4 Grounding
Signal wiring of the Fieldbus segment can not be grounded. Grounding out
one of the signal wires will shut down the entire Fieldbus segment.
7.5 Shield wire ground
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.
7.6 Signal termination
For every Fieldbus segment a terminator should be installed at the beginning
and at the end of each segment.
7.7 Locating devices
Devices are frequently installed, configured, and commissioned over time by
different personnel. A “Locate Device” capability has been provided to assist
personnel in finding the desired device.
From the device Overview screen, select the Locate Device button. This will
launch a method allowing the user to display a “Find me” message or enter a
custom message to display on the device LCD display.
When the user exits the “Locate Device” method, the device LCD display
automatically returns to normal operation.
Note
Some hosts do not support “Locate Device” in the DD.
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