Emerson Rosemount 2051CF series Manual de usuario
Quick Start Guide
00825-0100-4102, Rev DD
February 2019
Rosemount™ 2051 Pressure Transmitter
and Rosemount 2051CF DP Flowmeters
with WirelessHART® Protocol
Contents
Wireless considerations................................. 3
Mount the transmitter................................... 4
Housing rotation..........................................11
Connect the power module......................... 12
Trim the transmitter.................................... 13
Verify transmitter configuration...................15
Troubleshooting.......................................... 18
Product Certifications.................................. 19
Quick Start Guide February 2019
2 Rosemount 2051 Pressure Transmitter and Rosemount 2051CF DP Flowmeters Quick Start Guide
1 Wireless considerations
1.1 Power up sequence
The power module should not be installed on any wireless device until the
Emerson™ Smart Wireless Gateway (Gateway) is installed and functioning
properly. This transmitter uses the green power module (order model number
701PGNKF). Wireless devices should also be powered up in order of proximity
from the Gateway, beginning with the closest. This will result in a simpler and
faster network installation. Enable active advertising on the Gateway to
ensure new devices join the network faster. For more information, see the
Emerson Smart Wireless Gateway Reference Manual.
1.2 Connecting the transmitter with a Field Communicator
In order for the Field Communicator to interface with the Rosemount 2051
Wireless, the power module must be connected. This transmitter uses the
green power module (order model number 701PGNKF). Figure 1-1 shows how
to connect the Field Communicator to the transmitter. Open the power
module compartment to hook up the leads.
Figure 1-1: Field Communicator Connections
February 2019 Quick Start Guide
Quick Start Guide 3
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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4 Rosemount 2051 Pressure Transmitter and Rosemount 2051CF DP Flowmeters Quick Start Guide
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.
Quick Start Guide February 2019
6 Rosemount 2051 Pressure Transmitter and Rosemount 2051CF DP Flowmeters Quick Start Guide
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 or stainless steel. 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 Process
Management 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. Finger tighten the bolts.
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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Quick Start Guide 7
Example
Table 2-1: Torque Values for the Flange and Flange Adapter Bolts
Bolt material Head markings Initial
torque
Final torque
Carbon Steel (CS)
B7M
300 in-lb 650 in-lb
Stainless Steel (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.
Quick Start Guide February 2019
8 Rosemount 2051 Pressure Transmitter and Rosemount 2051CF DP Flowmeters Quick Start Guide
Figure 2-3: 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.
2.6 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.
2.7 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 2-4.)
February 2019 Quick Start Guide
Quick Start Guide 9
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.
Figure 2-4: In-line Gage Low Side Pressure Port
A
A. Pressure port location
Quick Start Guide February 2019
10 Rosemount 2051 Pressure Transmitter and Rosemount 2051CF DP Flowmeters Quick Start Guide
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