Rosemount 2051CFC Operating Manual
Rosemount Compact Flowmeters
Reference Manual
00809-0100-4810, Rev EC
May 2015
Reference Manual
NOTICE
00809-0100-4810, Rev EC
Rosemount Compact Flowmeters
Read this manual before working with the product. For personal and system safety, and for
optimum product performance, make sure you thoroughly understand the contents
before installing, using, or maintaining this product.
The United States has two toll-free assistance numbers and one International number.
Customer Central
1-800-999-9307 (7:00 a.m. to 7:00 P.M. CST)
International
1-(952) 906-8888
National Response Center
1-800-654-7768 (24 hours a day)
Equipment service needs
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 Emerson Process Management nuclear-qualified products, contact your
local Emerson Process Management Sales Representative.
iii
Reference Manual
00809-0100-4810, Rev EC
Reference Manual
00809-0100-4810, Rev EC
Contents
1Section 1: Introduction
2Section 2: Installation
Contents
May 2015
1.1 Transmitter information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1.2 Receiving and inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1.3 Returning the product. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.4 Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
1.4.1 Functional. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.1 Safety messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.2 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2.1 Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2.2 Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.2.3 Straight run requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.2.4 Bolting a transmitter to the Rosemount 405. . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Location and orientation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
2.3.1 Liquid - Rosemount 405C, 405P, and 405A . . . . . . . . . . . . . . . . . . . . . . . . . . .8
2.3.2 Gas - Rosemount 405C, 405P, and 405A . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
2.3.3 Steam - Rosemount 405C, 405P, and 405A. . . . . . . . . . . . . . . . . . . . . . . . . .10
2.3.4 Top mounting for steam . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
2.3.5 Process Connections (Remote Mount Only) . . . . . . . . . . . . . . . . . . . . . . . . .12
2.4 405 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
2.4.1 Recommended insulation guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
2.4.2 Remote RTD installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
3Section 3: Commissioning
3.1 Safety messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
3.2 Direct mount applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
3.2.1 Liquid service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
3.2.2 Gas service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
3.2.3 Steam service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
3.3 Remote mount applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
3.3.1 Liquid service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
3.3.2 Gas service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Tab le of Content s
3.3.3 Steam service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
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Contents
May 2015
Reference Manual
00809-0100-4810, Rev EC
4Section 4: Operation and Maintenance
4.1 Safety messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
4.2 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
4.3 RTD maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
4.3.1 Replacing an RTD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
4.3.2 Direct Mount for Compact Conditioning and Standard Orifice . . . . . . . . .31
4.3.3 Electrical RTD check procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
AAppendix A: Reference Data
A.1 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
A.1.1 Rosemount 3051SF performance specifications . . . . . . . . . . . . . . . . . . . . .52
A.1.2 Rosemount 3051CF performance specifications . . . . . . . . . . . . . . . . . . . . .55
A.1.3 Rosemount 2051CF performance specifications . . . . . . . . . . . . . . . . . . . . .57
A.1.4 Rosemount 3051SF functional specifications . . . . . . . . . . . . . . . . . . . . . . . .58
A.1.5 Rosemount 3051CF functional specifications. . . . . . . . . . . . . . . . . . . . . . . .66
A.1.6 Rosemount 2051CF functional specifications. . . . . . . . . . . . . . . . . . . . . . . .73
A.1.7 Rosemount 3051SF physical specifications . . . . . . . . . . . . . . . . . . . . . . . . . .82
A.1.8 Rosemount 3051CF physical specifications. . . . . . . . . . . . . . . . . . . . . . . . . .84
A.1.9 Rosemount 2051CF physical specifications. . . . . . . . . . . . . . . . . . . . . . . . . .86
A.2 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91
A.2.1 Rosemount 405 performance specifications. . . . . . . . . . . . . . . . . . . . . . . . .91
A.2.2 Rosemount 405 functional specifications . . . . . . . . . . . . . . . . . . . . . . . . . . .91
A.2.3 Rosemount 405 physical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
A.2.4 Installation consideration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96
A.3 Dimensional drawings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .98
A.3.1Rosemount 3051 SFC Compact Flowmeter . . . . . . . . . . . . . . . . . . . . . . . . . .98
A.3.2Rosemount 3051 CFC Compact Flowmeter . . . . . . . . . . . . . . . . . . . . . . . . . .99
A.3.3Rosemount 2051 CFC Compact Flowmeter . . . . . . . . . . . . . . . . . . . . . . . . 100
A.3.4Rosemount 405 Compact Orifice Primary Element . . . . . . . . . . . . . . . . . . 101
A.4 Spare parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
BAppendix B: Product Certifications
B.1 Rosemount 3051SF Measurement Type D Certifications. . . . . . . . . . . . . . . . . . 109
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Table of Contents
Reference Manual
00809-0100-4810, Rev EC
Section 1 Introduction
1.1 Transmitter information
If the 405 Primary Element was ordered assembled to a Rosemount 3051S Transmitter, the new
assembly is the Rosemount 3051SFC Compact Flowmeter. See the Rosemount 3051S Series
Pressure Transmitter Reference Manual (document number 00809-0100-4801) for information
regarding transmitter installation, configuration, and operation.
If the 405 Primary Element was ordered assembled to a Rosemount 3051S MultiVariable
transmitter, the new assembly is the Rosemount 3051SFC Compact Mass Flowmeter. See the
Rosemount 3051S MultiVariable Mass Flow Transmitter Reference Manual (document number
00809-0100-4803) for information regarding transmitter installation, configuration, and
operation.
If the 405 Primary Element was ordered assembled to a Rosemount 3051 Transmitter, the new
assembly is the Rosemount 3051CFC Compact Flowmeter. See the Rosemount 3051 Pressure
Transmitter Reference Manual (document number 00809-0100-4001) for information
regarding transmitter installation, configuration, and operation.
Section 1: Introduction
May 2015
If the 405 Primary Element was ordered assembled to a Rosemount 2051 Transmitter, the new
assembly is the Rosemount 2051CFC Compact Flowmeter. See the Rosemount 2051 Pressure
Transmitter Reference Manual (document number 00809-0100-4101) for information
regarding transmitter installation, configuration, and operation.
1.2 Receiving and inspection
Flowmeters are available in different models and with different options, so it is important to
inspect and verify that the appropriate model was delivered before installation.
Upon receipt of the shipment, check the packing list against the material received and the
purchase order. All items are tagged with a model number, serial number, and customer tag
number. Report any damage to the carrier.
1.3 Returning the product
To expedite the return process, call the Rosemount National Response Center toll-free at
800-654-7768. This center, available 24 hours a day, will assist you with any needed information
or materials.
The center will ask for:
Introduction
Product model
Serial numbers
The last process material to which the product was exposed
1
Section 1: Introduction
May 2015
The center will provide:
A Return Material Authorization (RMA) number
Instructions and procedures that are necessary to return goods that were exposed to
hazardous substances
Note
If a hazardous substance is identified, a Material Safety Data Sheet (MSDS), required by law to be
available to people exposed to specific hazardous substances, must be included with the
returned materials.
1.4 Considerations
1.4.1 Functional
The Rosemount 405 produces the most accurate and repeatable measurement when it is used
in single-phase flow or steam flow above the saturation temperature. Location of the 405 in
pulsating flow will cause a noisy signal. Vibration can also distort the output signal and
compromise the structural limits of the flowmeter.
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00809-0100-4810, Rev EC
Mount the 405 in a secure run of pipe as far as possible from pulsation sources such as check
valves, reciprocating compressors or pumps, and control valves.
Install the 405 in the correct location within the piping branch to prevent measurement
inaccuracies caused by flow disturbances.
Maximum temperature for direct mount applications is 450 °F (232 °C). Maximum temperature
for remote mount applications is 850 °F (454 °C).
Vibration limits
Qualified per IEC61298-3 (2008) for field with general application or pipeline with low vibration
level (10-1000 Hz test frequency range, 0.15 mm displacement peak amplitude, 20 m/s
acceleration amplitude). The weight and length of the transmitter assembly shall not exceed 9.8
lbs (4.45 kg) and 8.60-in. (218.44 mm).
2
2
Introduction
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00809-0100-4810, Rev EC
Section 2 Installation
Safety messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4
Location and orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 8
405 installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 14
2.1 Safety messages
Instructions and procedures in this section may require special precautions to ensure the safety
of the personnel performing the operations. Refer to the following safety messages before
performing any operation in this section.
Section 2: Installation
May 2015
Explosions could result in death or serious injury.
Do not remove the transmitter cover in explosive atmospheres when the circuit is live.
Before connecting a HART
®
Communicator in an explosive atmosphere, make sure
the instruments in the loop are installed in accordance with intrinsically safe or
nonincendive field wiring practices.
Verify that the operating atmosphere of the transmitter is consistent with the
appropriate hazardous locations certifications.
Both transmitter covers must be fully engaged to meet explosion-proof requirements.
Failure to follow these installation guidelines could result in death or serious injury.
Make sure only qualified personnel perform the installation.
The product may be hot while in service, potentially causing burns. Handle with care.
Installation
3
Section 2: Installation
Start.
Unpack Instrument
Review Product
Manual.
Verify proper location.
Hazardous
Location?
Bench
Configure?
Review Appendix B.
Configure write-protect and
failure alarm
Connect the bench power supply
Connect the instrument to a PC
Perform bench configuration tasks
(Optional) Perform bench
calibration tasks
Veri fy mode l
Remote
Mounted
Electronics?
Install electronics
Install flowmeter
Wire
Remote
Mounted
Electronics?
Finish.
Commission
Install hardware
Commission
May 2015
2.2 Installation
2.2.1 Flowchart
Reference Manual
00809-0100-4810, Rev EC
Figure 2-1 is an installation flowchart that provides guidance through the installation process.
Following the figure, an installation checklist has been provided to verify that all critical steps
have been taken in the installation process. The checklist numbers are indicated in the
flowchart.
Figure 2-1. Commissioning Chart
4
Installation
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00809-0100-4810, Rev EC
2.2.2 Handling
The product tag is not designed to withstand the weight of the flowmeter - do not lift the
product by the tag.
Do not lift the product by the orifice holes. Holes have sharp edges that may cause personal
injury. Lift the product by the neck tube connecting the orifice plate to manifold/transmitter
assembly.
Section 2: Installation
May 2015
2.2.3 Straight run requirements
Table 2-1. 405C Straight Pipe Requirements
Beta 0.40 0.50 0.65
Reducer 2 2 2
Single 90° bend or tee 2 2 2
Two or more 90° bends in the same plane 2 2 2
Two or more 90° bends in different planes 2 2 2
Up to 10° of swirl 2 2 2
Butterfly valve (75% to 100% open) 2 5 5
Upstream (inlet)
side of primary
Downstream (outlet) side of primary
Table 2-2. 405P Straight Pipe Requirements
Beta 0.40 0.50 0.65
Reducer 5 8 12
Single 90° bend or tee 16 22 44
Two or more 90° bends in the same plane 10 18 44
Two or more 90° bends in different planes 50 75 60
Expander 12 20 28
Ball / Gate valve fully open 12 12 18
Upstream (inlet)
side of primary
Downstream (outlet) side of primary
(1)(2)(3) (4)
(1)
(1)(2)
2 2 2
6 6 7
Installation
Table 2-3. 405A Straight Run Requirements
(1)
Without
straightening
With straightening vane
vane
Annubar® averaging pitot tube -
sensor Size 1
Reducer 12 12 8 4
Expander 18 18 8 4
Single 90° bend or tee 8 10 8 4
Two or more 90 ° bends in the same plane 11 16 8 4
Two or more 90° bends in different planes 23 28 8 4
Butterfly Valve (75-100% open) 30 30 8 4
Ball/Gate Valve fully open 8 10 8 4
Upstream (inlet)
side of primary
Downstream (outlet) side of primary
(1) Consult an Emerson Process Management representative if a disturbance is not listed.
(2) If using flow straighteners, refer to ISO 5167 for recommended links.
(3) Use straightening vane to reduce the required straight run length.
(4) In Plane means the Annubar is in the same plane as the elbow. Out of Plane means the bar is perpendicular to
the plane of the upstream elbow. Refer to Figure 2-2 on page 6.
In
plane
Out of
(4)
plane
4 4 4 4
From
(4)
disturbance
From
straightening
vane
(3)
5
Section 2: Installation
FLOW
In plane Out of plane
May 2015
Figure 2-2. Compact Annubar Flowmeter In Plane and Out of Plane
Note
The above figure depicts in plane and out of plane orientations only. Refer to
for recommended straight run requirements
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00809-0100-4810, Rev EC
FLOW
Table 2-3 on page 5
2.2.4 Bolting a transmitter to the Rosemount 405
If the Rosemount 405 is ordered separately from the Rosemount transmitter and will be used in
a direct mount configuration, it will need to be assembled to the transmitter. Follow the
directions below to assemble the 405 to a transmitter with a coplanar configuration.
Note
Units shipped from the factory direct mounted are pressure tested and characterized with the
primary attached. Factory assembly is recommended for best performance.
1. Remove the body bolts (4) from the transmitter.
2. Remove the socket head cap screws from the bottom of the coplanar flange and
remove the coplanar flange.
Note
Protect the transmitter sensing diaphragms and do not remove the O-rings in transmitter
sensor module.
3. Carefully assemble the 405 to the pressure transmitter sensor making sure the “H” and
“L” on transmitter and primary match.
4. Use studs and nuts supplied with the 405 to connect the transmitter sensor to the
manifold head of the 405.
5. Preload to 150 lbs/in. then final torque at 300 lbs/in. Tighten evenly in a cross pattern.
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Installation
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00809-0100-4810, Rev EC
Figure 2-3. Bolting the 405 to a Transmitter
Section 2: Installation
May 2015
A. Transmitter E. Sensing diaphragms and O-rings (do not disturb or remove)
B. Sensing module F. Transmitter
C. Coplanar flange G. Studs and nuts
D. Flange screws H. Rosemount 405
Installation
7
Section 2: Installation
30°
Recom mended
Zone 30°
Recommended
Zone 30°
45°
45°
May 2015
2.3 Location and orientation
The primary element can be installed in any position around the circumference of the pipe,
provided the vents are positioned properly for bleeding or venting. Optimal results for liquid in a
vertical line or steam are obtained when flow is up.
Note
The maximum acceptable temperature for direct mounting is 450 °F (232 C°). Refer to
and orientation” on page 8 if the process could potentially exceed this temperature.
2.3.1 Liquid - Rosemount 405C, 405P, and 405A
Note
The 405 should not be used in vertical liquid or steam applications if the fluid is flowing down.
Direct mount
Horizontal liquid
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00809-0100-4810, Rev EC
“Location
Remote mount
Horizontal liquid Vertical liquid
FLOW
Vent location will depend on direction of flow. The vent is fixed to the downstream side.
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Installation
Reference Manual
45°45°
Recom mended
Zone 90°
360°
Flow
FLOW
00809-0100-4810, Rev EC
2.3.2 Gas - Rosemount 405C, 405P, and 405A
Note
Due to drain vent orientation, a direct mount 405 should not be used in vertical gas applications
if the fluid is flowing up. Consider remote mounting the pressure transmitter to facilitate
condensate draining.
Direct mount
Horizontal gas Vertical gas
Section 2: Installation
May 2015
Remote mount
Horizontal gas Vertical gas
Gas in vertical pipes
The Rosemount 405 should be mounted with vents on bottom to allow condensate
drainage.
Installation
9
Section 2: Installation
30°
Recom mended
Zone 30°
Recommended
Zone 30°
45°
45°
FLOW
May 2015
2.3.3 Steam - Rosemount 405C, 405P, and 405A
Note
The 405 should not be used in vertical liquid or steam applications if the fluid is flowing down.
Direct mount
Horizontal steam
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00809-0100-4810, Rev EC
Remote mount
Horizontal steam Vertical steam
Note
For the 405A in steam applications, with DP readings in a low flow condition as low as 0.75
inH
O in horizontal pipes consider installing the primary element/flowmeter in the Top
2
Mounting for steam configuration.
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Installation
Reference Manual
60°
60°
Recommended
Zone 60°
00809-0100-4810, Rev EC
2.3.4 Top mounting for steam
Top mounting in steam is an alternative mounting method for steam installations that can be
used if there are space restrictions or other concerns. This installation method is intended for
applications that run with limited interruptions or shutdowns. Also, for outdoor applications,
top mounting can eliminate the need for heat tracing, if steam is flowing.
Direct mount - 405C, 405P, and 405A
Horizontal top mounting for steam up to 400 °F (204 °C)
Note
For the 405A in wet steam applications, do not mount the flowmeter at the direct vertical
position. Mounting at an angle will avoid measurement inaccuracy due to water running
along the bottom of the pipe.
Section 2: Installation
May 2015
Remote mount up to 850 °F (454 °C) - 405C, 405P, and 405A
Note
When top mounting with a remote mount transmitter, use enough impulse piping to dissipate
the process heat to avoid damaging the transmitter.
Suggested top mounting orientations: For steam up to 400 °F (204 °C) use direct mount
orientation and for steam up to 850 °F (454 °C) use remote mount orientation. For direct
mounting, ambient temperature should be less than 100 °F (38 °C). For remote mount
installations, the impulse piping should slope up slightly from the instrument connections on
the 405A Compact Annubar primary element to the cross fittings, allowing condensate to drain
back into the pipe. From the cross fittings, the impulse piping should be routed downward to
Installation
11
Section 2: Installation
May 2015
the transmitter and the drain legs. The transmitter should be located below the instrument
connections of the 405A Compact Annubar primary element.
For technologies C, P, and A, depending on the environmental conditions, it may be necessary
to insulate the mounting hardware.
2.3.5 Process connections (remote mount only)
The 405 is available with either ¼-in. – 18 NPT connections (standard) or 1/2-in. – 14 NPT
connections (option code E)
centers of 2-in. (51 mm), 2
lubricant or sealant when making the process connections.
Ensure all four flange studs are installed and tightened prior to applying pressure to prevent
process leakage. When properly installed, the flange studs will protrude through the top of the
module housing.
Note
Do not attempt to loosen or remove the flange studs while the 405 is in service.
(1)
. The 1/2-in. connections can be rotated to attain connection
1
/8-in. (54 mm), or 2 1/4-in. (57 mm). The threads are Class 2; use a
Reference Manual
00809-0100-4810, Rev EC
Perform the following to install flange adapters to the head of the 405.
1. Place O-ring in the groove on bottom of the flange adapter.
2. Position flange adapters over NPT connections on the adapter plate.
3. Insert studs through 405 head, adapter plate, and flange adapters.
4. Thread nuts onto studs. Tighten nuts to 300 in-lbs. (34 N-m).
(1) The Rosemount 405A is only available with 1/2-in. - 14 NPT connections for remote mount transmitter connections.
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Installation
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00809-0100-4810, Rev EC
Figure 2-4. Installing the Flange Adapters to a 405
Section 2: Installation
May 2015
A. Nut D. Nut
B. Adapter plate E. Flange adapter
C. Stud F. O -R ing
When compressed, PTFE O-rings tend to cold flow, which aids in their sealing capabilities. When
removing adapter plates or adapters, visually inspect the O-rings. Replace them if there are any
signs of damage, such as nicks or cuts. If they are undamaged, you may reuse them. If you
replace the O-rings, retorque the nuts after installation to compensate for cold flow.
High temperature units (option code T)
Alloy O-rings should be replaced any time the unit is disassembled.
Installation
13
Section 2: Installation
May 2015
2.4 405 installation
Install the 405 according to the procedure below.
Reference Manual
00809-0100-4810, Rev EC
1. Orient the assembly according to the guidelines provided in
page 8
. Ensure the flow arrow is pointing in the same direction as the process flow.
“Location and orientation” on
Note
An ANSI alignment ring is provided standard with the 405. If a DIN or JIS alignment ring is
required, it must be ordered as an option. Contact an Emerson Process Management sales
representative for additional information.
Note
For ease of installation, the gasket may be secured to the flange face with small pieces of tape.
Be sure the gasket and/or tape do not protrude into the pipe.
2. If using an alignment ring with through holes, proceed to
Step 9.
3. Insert two studs through the flange holes located opposite the head of the 405.
4. Place the alignment ring on the 405 body (see
Figure 2-5).
5. Insert gaskets.
6. Insert the 405 between the flanges so that the indentations on the alignment ring
contact the installed studs. The studs must contact the alignment ring in the
indentation marked with the appropriate flange rating to ensure proper alignment.
7. Install remaining studs and nuts (hand tight). Ensure that three of the studs are in
contact with the alignment ring.
8. Lubricate studs and tighten nuts in a cross pattern to the appropriate torque per local
standards.
Note
Step 9 through Step 12 are for use with alignment rings that have through holes.
9. Place the alignment ring on the 405 body (see
Figure 2-5).
10. Insert the 405 between the flanges. Insert one stud through the flange hole located
opposite the 405 head; passing through the alignment ring through hole and the
opposite flange hole. The stud must contact the alignment ring through the through
hole marked with the appropriate flange rating to ensure proper alignment.
11. Repeat
Step 10 for a second (2) stud opposite the 405 head.
12. Insert gaskets.
13. Install remaining studs and nuts (hand tight). Ensure that three of the studs are in
contact with the alignment ring.
14. Lubricate studs and tighten nuts in a cross pattern to the appropriate torque per local
standards.
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Installation
Reference Manual
00809-0100-4810, Rev EC
Section 2: Installation
May 2015
Note
Standard
1
/16-in. gaskets are recommended for use with the 405. Using other gaskets could
potentially caused a bias shift in the measurement.
2.4.1 Recommended insulation guidelines
For Flowmeters with integral temperature assembly:
It is recommended for the meter to be insulated when the process ambient temperature is
greater than 30 °F (-1 °C).
1. For line sizes
(100 mm) of insulation of at least a 4.35 R-factor.
2. For line sizes 6-in. (150 mm) to 12-in. (300 mm), it is recommended to have 5-in.
(125 mm) of insulation of at least a 4.35 R-factor.
The full thickness stated above may not be necessary for the entire flowmeter, but is required
for the temperature sensor area at a minimum. Insulation is needed to ensure meeting our
specified temperature measurement accuracy.
Figure 2-5. 405 Installation
1
/2-in. (15 mm) to 4-in. (100 mm), it is recommended to have 4-in.
Installation
(1)
A. 405
B. Alignment Ring G. 405
C. Existing Pipe Assembly with Flange H. Transmitter
D. Nut I. Stud
E. (2) Gasket
(1) This installation drawing applies to the 405C, 405P, and 405A.
(2) The installation drawing applies when using the Rosemount 3051S, Rosemount 3051S MultiVariable,
Rosemount 3051, and Rosemount 2051 Transmitter. See the following documents for quick installation
instruction of the transmitters:
Rosemount 3051S MultiVariable Transmitter: document number 00825-0100-4803
Rosemount 3051S: document number 00825-0100-4801
Rosemount 3051: document number 00825-0100-4001
Rosemount 2051: document number 00825-0100-4101
F. Alignment Ring
(1)
(2)
15
Section 2: Installation
May 2015
2.4.2 Remote RTD installation
A remote RTD requires that the process piping be modified. Follow site specific requirements for
installation. Install the RTD thermowell in close proximity downstream
element. The standard supplied RTD connection cable is 12 ft long. Consult factory for longer
lengths.
5
Drill a
/8-in. (16 mm) to 3/4-in. (19 mm) hole at the RTD location and weld on a customer
supplied 1-in. (25 mm) tall
weld coupling. The thermowell material is 316 SST with
will be inserted 1
1
/2-in. (38 mm) into the pipe internal diameter.
For remote RTD applications with pipe diameters less than 2 inches (50 mm) consult factory.
1
/2 inch -14 NPT weld coupling. The RTD thermowell threads into the
Reference Manual
00809-0100-4810, Rev EC
(1)
of the primary
1
/2–14 ANPT threads. When installed It
(1) For the 405P, at least six pipe diameters downstream of the primary element. For the 405C, two pipe diameters downstream of the primary
element.
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Installation
Reference Manual
00809-0100-4810, Rev EC
Section 3 Commissioning
Safety messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 17
Direct mount applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 18
Remote mount applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 21
3.1 Safety messages
Instructions and procedures in this section may require special precautions to ensure the safety
of the personnel performing the operations. Refer to the following safety messages before
performing any operation in this section.
Explosions could result in death or serious injury.
Do not remove the transmitter cover in explosive atmospheres when the circuit is live.
Before connecting a HART
the instruments in the loop are installed in accordance with intrinsically safe or
nonincendive field wiring practices.
Verify that the operating atmosphere of the transmitter is consistent with the
appropriate hazardous locations certifications.
Both transmitter covers must be fully engaged to meet explosion-proof requirements.
®
Communicator in an explosive atmosphere, make sure
Section 3: Commissioning
May 2015
Failure to follow these installation guidelines could result in death or serious injury.
Make sure only qualified personnel perform the installation.
If the line is pressurized, serious injury or death could occur by opening valves.
Commissioning
17
Section 3: Commissioning
May 2015
3.2 Direct mount applications
3.2.1 Liquid service
1. Pressurize line.
2. Open the equalizer valve.
3. Open the high and low side valves.
4. Bleed drain/vent valves until no gas is apparent in the liquid.
5. Close the vent/drain valves.
6. Close the low side valve.
7. Check transmitter zero according to the transmitter product manual so that the output
on the test meter reads zero percent of span.
8. Close the equalizer valve.
Reference Manual
00809-0100-4810, Rev EC
9. Open the low side valve. The system is now operational.
Figure 3-1. Direct Mount Liquid Service
A. (2) Drain/Vent C. Equalizer Valve
B. Low Valve D. High Valve
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Commissioning
Reference Manual
00809-0100-4810, Rev EC
3.2.2 Gas service
1. Pressurize line.
2. Open the equalizer valve.
3. Open the high and low side valves.
4. Open drain/vent valves to ensure no liquid is present.
5. Close the vent/drain valves.
6. Close the low side valve.
7. Check transmitter zero according to the transmitter product manual so the output on
the test meter reads zero percent of span.
8. Close the equalizer valve.
9. Open the low side valve. The system is now operational.
Section 3: Commissioning
May 2015
Figure 3-2. Direct Mount Gas Service
A. High Valve C. Low Valve
B. Equalizer Valve D. (2) Drain/Vent
Commissioning
19
Section 3: Commissioning
May 2015
3.2.3 Steam service
1. Remove pressure from line.
2. Open equalizer, high, and low side valves.
3. Zero electronics.
4. Fill manifold and transmitter with water via drain vents.
5. Close low side valve to prevent possible heat damage to transmitter.
6. Pressurize line.
7. Gently tap electronics body, manifold head, and 405 body with a small wrench to
dislodge any entrapped air.
8. Zero electronics.
9. Close the equalizer valve. Then open the low side valve.
Reference Manual
00809-0100-4810, Rev EC
10. The system is now operational.
Figure 3-3. Direct Mount Steam Service
A. (2) Drain/Vent C. Equalizer Valve
B. Low Valve D. High Valve
20
Commissioning
Reference Manual
00809-0100-4810, Rev EC
3.3 Remote mount applications
3.3.1 Liquid service
1. Zero electronics and pressurize line.
2. Open equalizer valves on transmitter manifold and 405.
3. Open high and low side transmitter manifold valves and 405 valves.
4. Bleed vent valves on transmitter manifold until no air is present.
5. Close vent valves.
6. Close equalizer valve on 405.
7. Check transmitter zero. If transmitter does not read zero repeat Step 1 through Step 7.
8. Close equalizer valve on transmitter manifold.
Figure 3-4. Remote Liquid Service
Section 3: Commissioning
May 2015
Commissioning
A. Vents F. Transmit ter
B. 405 High Valve G. Manifold Low Valve
C. Transmitter Manifold H. Manifold Vent
D. Manifold High Valve I. 405 Equalizer Valve
E. Manifold Equalizer Valve J. 405 Low Valve
21
Section 3: Commissioning
May 2015
3.3.2 Gas service
1. Zero electronics and pressurize line.
2. Open equalizer valves on transmitter manifold and 405.
3. Open high and low side transmitter manifold valves and 405 valves.
4. Open drain/vent valves on transmitter manifold to ensure no liquids are present.
5. Close drain/vent valves.
6. Close low side transmitter manifold valve.
7. Close 405 equalizer valve.
8. Check transmitter zero. If transmitter does not read zero repeat Step 1 through Step 7.
9. Close equalizer on transmitter manifold.
10. Open low side valve on transmitter manifold. The system is now operational.
Reference Manual
00809-0100-4810, Rev EC
Figure 3-5. Remote Gas Service
A. Manifold Vents F. Manifold High Valve
B. 405 Low Valve G. Manifold Equalizer Valve
C. 405 Equalizer Valve H. Manifold Low Valve
D. 405 High Valve I. Transmitter Manifold
E. Drain/Vents J. Transmitter
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Commissioning
Reference Manual
00809-0100-4810, Rev EC
3.3.3 Steam service
1. Remove pressure from line.
2. Open equalizer valves, high side valves, and low side valves on both the 405 and
transmitter manifold.
3. Zero electronics.
4. Fill transmitter manifold, instrument lines, and 405 with water via drain vents on
transmitter manifold.
5. Close 405 equalizer valve and transmitter manifold vents.
6. Close low side transmitter manifold valve.
7. Pressurize line.
8. Gently tap electronics body, transmitter manifold, instrument lines, and 405 with a
small wrench to dislodge any trapped air.
Section 3: Commissioning
May 2015
9. Check transmitter zero. If transmitter does not read zero repeat Step 4 through Step 8.
10. Close the transmitter equalizer and open low side valve on transmitter manifold. The
system is now operational.
Commissioning
23
Section 3: Commissioning
May 2015
Figure 3-6. Remote Steam Service
Reference Manual
00809-0100-4810, Rev EC
A. Drain/Vents F. Tran smitter
B. 405 High Valve G. Manifold Low Valve
C. Transmitter Manifold H. Manifold Vent
D. Manifold High Valve I. 405 Equalizer Valve
E. Manifold Equalizer Valve J. 405 Low Valve
24
Commissioning
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