Emerson Process Management 2051CF, 2051 User Manual
Quick Installation Guide
Start
End
Step 1: Mount the Transmitter
Step 2: Consider Housing Rotation
Step 3: Set the Jumpers
Step 4: Connect the Wiring and Power
Step 5: Verify Configuration
Step 6: Trim the Transmitter
Safety Instrumented Systems
Product Certifications
00825-0100-4101, Rev EA
June 2010
Rosemount 2051
Rosemount 2051 Pressure Transmitter
with HART 4-20 mA and HART 1-5 Vdc Low Power Protocol
Rosemount 2051CF Series Flowmeter T ransmitter
with HART 4-20 mA and HART 1-5 Vdc Low Power Protocol
www.rosemount.com
¢00825-0100-4101¤
Quick Installation Guide
IMPORTANT NOTICE
WARNING
00825-0100-4101, Rev EA
Rosemount 2051
© 2010 Rosemount Inc. All rights reserved. All marks property of owner. Rosemount and the Rosemount logotype are
registered trademarks of Rosemount Inc.
Rosemount Inc.
8200 Market Boulevard
Chanhassen, MN USA 55317
T (US) (800) 999-9307
T (Intnl) (952) 906-8888
F (952) 949-7001
Emerson Process Management Asia Pacific
Private Limited
1 Pandan Crescent
Singapore 128461
T (65) 6777 8211
F (65) 6777 0947/65 6777 0743
This installation guide provides basic guidelines for Rosemount
2051 transmitters. It does not provide instructions for configuration, diagnostics,
maintenance, service, troubleshooting, Explosion-proof, Flameproof, or intrinsically safe
(I.S.) installations. Refer to the 2051 reference manual (document number
00809-0100-4101) for more instruction. This manual is also available electronically on
www.emersonprocess.com/rosemount.
Emerson Process Management GmbH & Co.
OHG
Argelsrieder Feld 3
82234 Wessling
Germany
T 49 (8153) 9390
F49 (8153) 939172
Beijing Rosemount Far East Instrument Co.,
Limited
No. 6 North Street,
Hepingli, Dong Cheng District
Beijing 100013, China
T (86) (10) 6428 2233
F (86) (10) 6422 8586
June 2010
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. Please
review the approvals section of the 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 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 can result in death or serious injury.
• Avoid contact with the leads and the terminals. High voltage that may be present on
leads can cause electrical shock.
Conduit/Cable Entries
1
• Unless marked, the conduit/cable entries in the transmitter housing use a
/2-14 NPT
thread form. Only use plugs, adapters, glands or conduit with a compatible thread
form when closing these entries.
2
Quick Installation Guide
STEP 1: MOUNT THE TRANSMITTER
F
lo
w
F
lo
w
F
lo
w
00825-0100-4101, Rev EA
June 2010
A. Applications
Liquid Flow Applications
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.
Gas Flow Applications
1. Place taps in the top or side of the line.
2. Mount beside or above the taps.
Rosemount 2051
Steam Flow Applications
1. Place taps to the side of the line.
2. Mount beside or below the taps.
3. Fill impulse lines with water.
3
Quick Installation Guide
STEP 1 CONTINUED...
00825-0100-4101, Rev EA
Rosemount 2051
June 2010
B. Optional Mounting Brackets
When installing the transmitter to one of the optional mounting brackets, torque the bracket
bolts to 125 in.-lbs. (0,9 N-m).
Rosemount 2051C
Pipe Mount
Coplanar Flange
Traditional Flange
Panel Mount
(1)
(1) Panel bolts are customer supplied.
4
Rosemount 2051T
Quick Installation Guide
STEP 1 CONTINUED...
4 x 1.75-in. (44 mm)
4 x 2.88-in. (73 mm)
A. Transmitter with
Coplanar Flange
B. Transmitter with Copla nar
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
4 x 1.75-in. (44 mm)
4 x 1.50-in. (38 mm)
4 x 1.75-in. (44 mm)
4 x 2.25-in. (57 mm)
00825-0100-4101, Rev EA
June 2010
Rosemount 2051
C. Bolting Considerations
If the transmitter installation requires assembly of the process flanges, manifolds, or flange
adapters, follow these 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 1 illustrates common transmitter assemblies with the bolt
length required for proper transmitter assembly.
Figure 1. Common Transmitter Assemblies
Bolts are typically carbon steel or stainless steel. Confirm the material by viewing the
markings on the head of the bolt and referencing Figure 2. If bolt material is not shown in
Figure 2, contact the local Emerson Process Management representative for more
information.
Use the following bolt installation procedure:
1. 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.
2. Finger-tighten the bolts.
3. T orque the bolt s to the initial torque value using a crossing pattern. See Figure 2 for initial
torque value.
4. Torque the bolts to the final torque value using the same crossing pattern. See Figure 2
for final torque value.
5. Verify that the flange bolts are protruding through the isolator plate before applying
pressure.
5
Quick Installation Guide
STEP 1 CONTINUED...
WARNING
B7M
316
316
316
SW
316
STM
316
R
B8M
Rosemount 3051S / 3051 / 2051 / 3095
Rosemount 1151
Flange Adapter
O-ring
Flange Adapter
O-ring
PTFE Based
Elastomer
PTFE
Elastomer
00825-0100-4101, Rev EA
Rosemount 2051
Figure 2. Torque values for the flange and flange adapter bolts
Bolt Material Head Markings Initial Torque Final Torque
Carbon Steel (CS) 300 in.-lbs. 650 in.-lbs.
Stainless Steel (SST) 150 in.-lbs. 300 in.-lbs.
June 2010
D. O-rings with Flange Adapters
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.
Whenever the flanges or adapters are removed, visually inspect the o-rings. Replace them if
there are any signs of damage, such as nicks or cuts. If you replace the o-rings, re-torque
the flange bolts and alignment screws after installation to compensate for seating of the
PTFE o-ring.
6
Quick Installation Guide
STEP 2: CONSIDER HOUSING ROTATION
STEP 3: SET THE JUMPERS
Low side pressure port
(atmospheric reference)
Housing Rotation Set Screw
(5/64-inch)
00825-0100-4101, Rev EA
June 2010
Rosemount 2051
E. Inline 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.)
Keep the vent path free of any obstruction, including but not limited to paint, dust, and
lubrication by mounting the transmitter so that the contaminants can drain away.
Figure 3. Inline Gage Transmitter
To improve field access to wiring or to better view the optional LCD display:
1. Loosen the housing rotation set screw.
2. First rotate the housing clockwise to the desired location. If
the desired location cannot be achieved due to thread limit,
rotate the housing counter clockwise to the desired location
(up to 360° from thread limit).
3. Retighten the housing rotation set screw.
If alarm and security jumpers are not installed, the transmitter will operate normally with the
default alarm condition alarm high and the security off.
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. Reposition the jumper. Avoid contact with the leads and the terminals. See Figure 4 for
the location of the jumper and the ON and OFF positions.
4. Reattach the transmitter cover. The cover must be fully engaged to comply with
explosion-proof requirements.
7
Rosemount 2051
Security
Alarm
Alarm
Security
Figure 4. 2051 Transmitter Electronics Board
Without LCD Meter With LCD Display
1-5 Vdc HART Low Power
Without LCD Meter With LCD Display
Quick Installation Guide
00825-0100-4101, Rev EA
June 2010
4-20 mA HART
8
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