Emerson Rosemount 2051L User manual

Quick Start Guide
00825-0100-4107, Rev EA
March 2020
Rosemount™ 2051 Pressure Transmitter
and Rosemount 2051CF Series Flow
Meter
with 4–20 mA HART® and 1–5 Vdc Low
Power HART Protocol (Revision 5 and 7)

Safety messages
This guide provides basic guidelines for the Rosemount 2051HT Transmitter. It does not provide
instructions for configuration, diagnostics, maintenance, service, troubleshooting, Explosion-proof,
Flameproof, or intrinsically safe (I.S.) installations.
CAUTION
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 your
local Emerson Sales Representative.
WARNING
Explosions could result in death or serious injury.
Installation of this transmitter in an explosive environment must be in accordance with the appropriate
local, national, and international standards, codes, and practices. Review the approvals section of this
manual for any restrictions associated with a safe
•Before connecting a Field Communicator in an explosive atmosphere, ensure 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 may cause harm or result in death.
•Install and tighten process connectors before applying pressure.
•Do not attempt to loosen or remove flange bolts while the transmitter is in service.
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.
•Before connecting a handheld communicator in an explosive atmosphere, ensure 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 may cause harm or result in death.
•Install and tighten process connectors before applying pressure.
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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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.
Improper assembly of manifolds to traditional flange can damage sensor module.
For safe assembly of manifold to traditional flange, bolts must break back plane of flange web (i.e., bolt
hole) but must not contact sensor module housing.
Contents
System readiness......................................................................................................................... 5
Mount the transmitter..................................................................................................................6
Housing rotation........................................................................................................................ 13
Set the switches......................................................................................................................... 14
Connect the wiring and power up...............................................................................................15
Verify configuration................................................................................................................... 18
Trim the transmitter...................................................................................................................22
Safety instrumented systems..................................................................................................... 25
Product certifications................................................................................................................. 26
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1 System readiness
1.1 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 protocol.
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.
1.2 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.
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2 Mount the transmitter
2.1 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.
2.2 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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2.3 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 2-1: Panel and Pipe Mounting
Panel mount(1) Pipe mount
Coplanar flange
Traditional flange
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Rosemount 2051T
(1) × 1 panel bolts are customer supplied.
2.4 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 2-2 illustrates common transmitter assemblies with the bolt length
required for proper transmitter assembly.
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Figure 2-2: 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 2-1. If bolt material is not shown in Table 2-1, 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 2-1 for initial torque value.
3. Torque the bolts to the final torque value using the same crossing
pattern. See Table 2-1 for final torque value.
4. Verify the flange bolts are protruding through the sensor module
bolt holes before applying pressure.
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Table 2-1: 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
2.5 O-rings
The two styles of Rosemount flange adapters (Rosemount 1151 and
Rosemount 3051/2051/2024/3095) each require a unique O-ring (see
Figure 2-3). 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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