Page 1
Reference Manual
00821-0100-4810, Rev EB
May 2022
Rosemount™ 405 Compact Orifice Series and
Rosemount 1595 Conditioning Orifice Plate
Flow Test Data Book and Flow Handbook
Page 2
Safety messages
WARNING
Read this manual before working with the product. For personal and system safety, and for optimum product performance,
ensure you thoroughly understand the contents before installing, using, or maintaining this product.
Customer Central
1-800-999-9307 (7:00 a.m. to 7:00 P.M. CST)
National Response Center
1-800-654-7768 (24 hours a day)
Equipment service needs
International
1-(952) 906-8888
NOTICE
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
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.
Emerson satisfies all obligations coming from legislation to harmonize product requirements in the
European Union.
2
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Reference Manual Contents
00821-0100-4810 May 2022
Contents
Chapter 1 Introduction.............................................................................................................. 5
1.1 Product features.......................................................................................................................... 5
1.2 Testing........................................................................................................................................ 5
1.3 Product specifications..................................................................................................................7
Chapter 2 Theory of operation................................................................................................... 9
2.1 Overview..................................................................................................................................... 9
2.2 Technical detail............................................................................................................................9
2.3 Compact orifice plate technology..............................................................................................10
2.4 Conditioning orifice plate technology........................................................................................11
Chapter 3 Test facilities and flow tests......................................................................................13
3.1 Overview................................................................................................................................... 13
3.2 Testing laboratories...................................................................................................................13
3.3 Gravimetric testing....................................................................................................................13
3.4 Flow tests.................................................................................................................................. 14
3.5 Run to run repeatability............................................................................................................. 16
3.6 Single elbow tests......................................................................................................................39
3.7 Double elbows in plane..............................................................................................................44
3.8 Double elbows out of plane....................................................................................................... 50
3.9 Swirl generator.......................................................................................................................... 57
3.10 8 x 6-in reduction.....................................................................................................................68
3.11 Butterfly valve at 75 percent open........................................................................................... 72
3.12 Gate valve................................................................................................................................76
Chapter 4 Flow calculations..................................................................................................... 79
4.1 Rosemount 405C and 1595 Conditioning Orifice Plate.............................................................. 79
4.2 Rosemount 405P Compact Orifice Plate.................................................................................... 83
4.3 Flow calculation tables...............................................................................................................85
Rosemount 405 and 1595 3
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Contents Reference Manual
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4 Emerson.com/Rosemount
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Reference Manual Introduction
00821-0100-4810 May 2022
1 Introduction
1.1 Product features
The Rosemount 405 Compact Orifice Series (standard and condition plate options) and
Rosemount 1595 Conditioning Orifice Plate primary flow elements maintain the
traditional strengths of orifice plate technology with improved features/performance.
The strengths of the Rosemount 405 include:
• More economical than a traditional orifice plate installation
• Accurate and repeatable
• Short straight run requirements (405C — 2D upstream and 2D downstream)
• Self centering mechanism
• Based on ASME/ISO corner tap design
The strengths of the Rosemount 1595 include:
• Based on the most common primary element in the world with established standards
for manufacture and installation.
• Easy to use, prove, and troubleshoot
• Accurate and repeatable
• Short straight run requirements (2D upstream and 2D downstream)
• Based on ASME/ISO/AGA standards
The Rosemount 405 and 1595 primary flow elements are sized using Rosemount's
Instrument Toolkit sizing program. This program provides accurate flow calculations using
installation details and fluid properties for the flowmeter and presents this on a calculation
data sheet or specification sheet.
1.2 Testing
Tests performed on the Rosemount 405/1595 primary flow elements are divided into
three major categories:
• Mechanical and structural testing
• In-house performance testing
• Independent laboratory testing
All categories are ongoing and continue to be a part of the current Rosemount test
program for the Rosemount 405/1595 primary flow elements.
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Introduction
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Reference Manual
1.2.1 Structural testing
Emerson performed integrity testing for:
• Allowable stress limits
• Hydrostatic pressure
• Thermal effects
• Vibration
At the following labs:
• Hauser Laboratories, Boulder, CO
• Rosemount Vibration Laboratory, Eden Prairie, MN
1.2.2
In-house performance testing
Emerson conducted extensive in-house testing on Rosemount 1595, 405C, and 405P
Orifice Plate Primary Elements to verify performance standards.
Emerson performed flow tests in the Rosemount flow laboratory in 2 in (51 mm) to 10 in
(254 mm) pipeline, using independently certified magnetic flow meters or the laboratory's
gravimetric system as primary reference.
In house performance tests
• Straight run requirements
• Run to run repeatability (with and without disassembly/re-assembly)
• Pipe adjustment factors
• Sensitivity to centering
Testing was also performed to determine minimum straight run requirements after the
following upstream disturbances:
• Single elbow
• Double elbows in plane
• Double elbows out of plane
• Reduction
• Expansion
• Butterfly valve
Emerson also evaluated performance with up to 20 degrees of induced swirl.
1.2.3
6 Emerson.com/Rosemount
Independent testing
Four independent laboratories tested the Rosemount 405 and 1595 primary flow element
models.
• Colorado Engineering Experiment Station, Inc. (CEESI)
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Introduction
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• Southwest Research Institute (SwRI)
• Foxboro Co. Flow Lab
• Daniel Flow Lab
Each facility supplied certified flow data sheets.
Related information
Test facilities and flow tests
1.3 Product specifications
With testing, Emerson has confirmed that these products conform to the following
specifications:
Table 1-1: Rosemount 405 Compact Orifice Flow Meter
Type Beta Discharge coefficient
uncertainty
Conditioning 0.4 ±0.50%
Conditioning 0.50 ±1.00%
Conditioning 0.65 ±1.00%
Standard (½ to 1½-in line size)
Standard (½ to 1½-in line size)
Standard (½ to 1½-in line size)
Standard (2 to 8-in line size) 0.4 ±1.25%
Standard (2 to 8-in line size) 0.50 ±1.25%
Standard (2 to 8-in line size) 0.65 ±1.25%
(1) Discharge coefficient uncertainty for ½-in units with Beta = 0.65 is ±2.25% (2.5% of flow).
(1)
(1)
(1)
Table 1-2: Rosemount 1595 Conditioning Orifice Plate
Beta ratio Discharge coefficient uncertainty
β = 0.40 ±0.50%
β = 0.50 ±1.00%
β = 0.65 ±1.00%
1.3.1 Straight pipe requirement
0.4 ±1.75%
0.50 ±1.75%
0.65 ±1.75%
Use the appropriate lengths of straight pipe upstream and downstream of the Rosemount
405 to minimize the effects of moderate flow disturbances in the pipe.
Table 1-4 lists recommended lengths of straight pipe per ISO 5167.
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Introduction Reference Manual
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Table 1-3: Rosemount 405C/1595 straight pipe requirements
Location of flow
disturbance
(1)
Upstream (inlet) side of
primary
Beta 0.40 0.50 0.65
Reducer (1 line size) 2 2 2
Single 90° bend or tee 2 2 2
Two or more 90° bends
2 2 2
in the same plane
Two or more 90° bends
2 2 2
in different plane
Up to 10° of swirl 2 2 2
Butterfly valve (75% to
2 N/A N/A
100% open)
Downstream (outlet) side
N/A 2 2 2
of primary
(1) Consult an Emerson representative if disturbance is not listed.
Table 1-4: Rosemount 405P straight pipe requirements
Location of flow
disturbance
(1)(2)(3)
Upstream (inlet) side of
primary
Beta 0.40 0.50 0.65
Reducer 5 8 12
Single 90° bend or tee 16 22 44
Two or more 90° bends
10 18 44
in the same plane
Two or more 90° bends
50 75 60
in different plane
Expander 12 20 28
Ball / gate valve fully open 12 12 18
Downstream (outlet) side
N/A 6 6 7
of primary
(1) Consult an Emerson representative if disturbance is not listed.
(2) Recommended lengths represented in pipe diameters per ISO 5167.
(3) Refer to ISO 5167 for recommended lengths when using flow straighteners.
8 Emerson.com/Rosemount
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Reference Manual Theory of operation
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2 Theory of operation
2.1 Overview
The Rosemount 405 and 1595, based on orifice plate technology, are devices used to
measure the flow of a liquid, gas, or steam fluid that flows through a pipe.
These devices enable flow measurement by creating a differential pressure (DP) that is
proportional to the square of the velocity of the fluid in the pipe, in accordance with
Bernoulli's theorem. This DP is measured and converted into a flow rate using a secondary
device, such as a DP pressure transmitter.
The flow is related to DP through the following relationship.
Figure 2-1: Relationship of flow to differential pressure
where:
Q = Flow rate
K = Units conversion factor, discharge coefficient, and other factors
DP = Differential Pressure
ρ = Density
Related information
Flow calculations
2.2 Technical detail
Traditional orifice plate flow meters are based on Bernoulli's theorem, which states that
along any one streamline in a moving fluid, the total energy per unit mass is constant,
being made up of the potential energy (the pressure energy), and the kinetic energy of the
fluid.
Figure 2-2: Bernoulli's theorem of differential pressure
where:
P1 = Upstream pressure
P2 = Downstream pressure
ρ1 = Upstream density
Rosemount 405 and 1595 9
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C
A
T
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Theory of operation Reference Manual
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ρ2 = Downstream density
V1 = Upstream velocity
V2 = Downstream velocity
When fluid passes through the orifice, the velocity of the fluid through the orifice
increases. This increase in fluid velocity causes the kinetic energy of the fluid immediately
downstream of the orifice plate to increase, while simultaneously decreasing the static
pressure energy of the fluid at that same point. By sensing the static pressure on the
upstream and downstream sides of the orifice plate, a flow meter can determine the fluid
velocity.
Some assumptions were made in deriving the theoretical equation, which in practice are
not valid:
1. Energy is conserved in the flow stream.
2. Pressure taps are at ideal locations.
3. Velocity profile is flat.
These items are corrected by the discharge coefficient which is derived from experimental
data and is different for each primary element.
Figure 2-3: Discharge coefficient
Where:
A = Actual flow
T = Theoretical flow
C = Discharge coefficient
2.3 Compact orifice plate technology
The Rosemount 405P Compact Orifice Plate is a wafer style meter and has a traditional
style orifice plate integrally machined into the wafer. The wafer is one inch thick. Meter
inlet and outlet sections in this wafer are sized for schedule 40 pipe.
If the operator installs meter in a pipe where the schedule is something other than
schedule 40, they must make adjustments in the flow calculations to accommodate the
pipe schedule mismatch.
Orifice plates work well when the velocity profile is symmetrical about the longitudinal axis
of the pipe in which the fluid is flowing. In such cases, where the flow is conditioned or
there is an adequate amount of straight run, the highest velocity fluid is along the central
axis of the pipe, coaxial with the orifice of the conditioning plate. This is the situation
under which the discharge coefficient was determined and is how most standard orifice
plates are used. However, if you install an orifice plate immediately after an upstream
fitting, the velocity profile will be skewed. This may take the form of profile distortion
and/or swirl.
10 Emerson.com/Rosemount
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Reference Manual Theory of operation
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Additionally, secondary flows may develop after the fitting. Any of these conditions will
cause a subsequent change in the performance of the orifice plate. In general, profile
distortion results in higher differential pressure being reported, and swirl results in lower
differential pressure being reported. The differential pressure thus produced across the
standard orifice plate will not be a true indication of the rate of fluid flow in this situation.
2.4 Conditioning orifice plate technology
The Rosemount 405C and 1595 Conditioning Orifice Plate has the added advantage of
being able to operate with reduced straight run requirements.
With its multiple orifices in the flow stream, the plate much less susceptible to velocity
profile distortion, swirl, and secondary flows. If the velocity profile is skewed, each of the
orifices will conduct a part of the total fluid flow within the pipe. The fluid pressure on the
downstream side of the conditioning plate that is attributable to each of the separate
orifices will be averaged within the fluid to provide an average downstream pressure. The
average downstream pressure is compared with the upstream pressure to provide an
average differential pressure for whatever velocity profile is presented to the multiple
orifice plate, resulting in an accurate measurement of the rate of fluid flow in the pipe.
Emerson flow calibrates every Rosemount 405C and 1595 as part of the manufacturing
process. The purpose of this calibration is to determine a calibration factor which is applied
to the flow calculations as an adjustment to correct for bias error from the ISO-5167
discharge coefficient equations. This results in an accurate flow meter which conforms to
the ISO-5167 equations.
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12 Emerson.com/Rosemount
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Reference Manual Test facilities and flow tests
00821-0100-4810 May 2022
3 Test facilities and flow tests
3.1 Overview
The following descriptions of tests and testing methods are abbreviated versions.
For detailed descriptions of the individual laboratories, contact the facility in question.
3.2 Testing laboratories
Rosemount Boulder, Colorado Flow Laboratory
Emerson tests and calibrates the Rosemount 405 and 1595 in water. Line sizes available
for testing range from 0.5 in (13 mm) to 12 in (305 mm). A secondary set of reference
magnetic flow meters, routinely calibrated against a gravimetric primary standard,
provide an uncertainty of 0.25 percent. Calibrations that use the primary-measurement
device, gravimetric method, can be calibrated with an uncertainty of 0.1 percent.
SwRI Gas Research Institute (GRI), Meter Research Facility (MRF)
Flow meters are tested and calibrated on a recirculating natural gas loop. A sonic nozzle
bank provides secondary flow calibration. This permits high repeatability and excellent
test accuracy's via calibration against the gravimetric primary standards. The sonic nozzle
banks produce an accuracy on flow rate of 0.25 percent of reading.
Colorado Engineering Experiment Station (CEESI), Inc.
The flow lab uses critical flow venturis (CFV) for calibrations in air. The uncertainty in mass
flow rate is estimated to be ±0.50 percent. Calibrations are traceable by the National
Institute of Standards and Technology (NIST).
Foxboro Co. Flow Lab
The flow lab uses a gravimetric system for water calibrations. Calibrations are NIST
traceable.
Daniel Flow Lab
The flow lab uses a dynamic weighing system for water calibrations. Calibrations are NIST
traceable.
3.3 Gravimetric testing
The technician selects piping to match the inside diameter of the flow meter being tested.
They normally use carbon steel piping for these tests. The technician also carefully installs
and checks gaskets between pipe flanges to ensure that they not interfere with the flow.
They make sure that proper alignment of the flow meter with the piping is maintained.
After all piping is secured with bolts, couplings, or clamps, the technician gradually
introduces water into the line. They set flow to purge air from the system and to bring the
flow meter to steady-state temperature. After operating the system for a period of time,
Rosemount 405 and 1595 13
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Test facilities and flow tests Reference Manual
May 2022 00821-0100-4810
they purge air from all instrumentation lines, instruments, and the flow meter. After air
purging, they check all instrumentation for zero-flow indication.
Technicians set the flow rate by adjusting the control valve at the end of the test line to a
desired flow. They allow this flow to stabilize and reach steady-state condition. This
condition is achieved when the average flow-meter readout is constant with time. At this
point, the technician begins the calibration run.
A calibration run consists of simultaneously recording the flow meter output while the
weighing tank is filled and timing the filling process. The technician activates and
deactivates electronic timers using electric eyes on the switch way. During this time, they
record outputs at 1 Hz. The duration of the run is typically between 50 and 100 seconds.
In addition to recording weight and time, the technician also records the water
temperature, air temperature at the weigh tank, and air temperature adjacent to the
readout. They also record barometric pressure at the start and at the end of the test.
After a run is completed, the technician resets the control valve to another flow rate and
repeats the process. They normally conduct runs at 10 different flow rates, approximately
equally spaced from the maximum to the minimum flow rates. In some cases, the
maximum flow obtainable by the test facility determines the upper flow limit of the test.
3.4 Flow tests
3.4.1 Run to run repeatability
Meter section was assembled, tested, disassembled, re-assembled and re-tested.
• Rosemount 405P, water, 06442, 1.5-in, 0.40 beta
• Rosemount 405P, water, 13443, 2-in, 0.65 beta
• Rosemount 405P, water, 26171, 4-in, 0.65 beta
• Rosemount 405C, water, 08261, 2-in, 0.40 beta
• Rosemount 405C, water, 12402, 2-in, 0.60 beta
• Rosemount 405C, water, 16261, 4-in, 0.40 beta
• Rosemount 405C, water, 24061, 4-in, 0.60 beta
• Rosemount 1595, water, AT24261, 6-in, 0.40 beta
• Rosemount 1595, water, AT39422, 6-in, 0.65 beta
• Rosemount 1595, water, AT48003, 12-in, 0.40 beta
Related information
Run to run repeatability
3.4.2
14 Emerson.com/Rosemount
Meter installed 2D downstream of the following fittings
Single elbow
• Rosemount 405C, water, 08261, 2-in, 0.40 beta
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Reference Manual Test facilities and flow tests
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• Rosemount 405C, natural gas, 08261, 2-in, 0.40 beta
Double elbows in plane
• Rosemount 405C, water, 08261, 2-in, 0.40 beta
• Rosemount 405C, natural gas, 08261, 2-in, 0.40 beta
• Rosemount 405C, water, 12402, 2-in, 0.60 beta
Double elbows out of plane
• Rosemount 405C, water, 08261, 2-in, 0.40 beta
• Rosemount 405C, natural gas, 08261, 2-in, 0.40 beta
• Rosemount 405C, water, 12402, 2-in, 0.60 beta
Swirl generator
• Rosemount 405C, water, 08261, 2-in, 0.40 beta
• Rosemount 405C, air, 08261, 2-in, 0.40 beta
• Rosemount 405C, natural gas, 08261, 2-in, 0.40 beta
• Rosemount 405C, water, 04D407574, 4-in, 0.40 beta
• Rosemount 1595, Water, AT24261, 6-in, 0.40 beta
8 × 6-in reduction
• Rosemount 1595, water, A24261, 6-in, 0.40 beta
• Rosemount 1595, water, A39421, 6-in, 0.65 beta
Butterfly valve at 75% open
• Rosemount 405C, water, 12402, 2-in, 0.60 beta
• Rosemount 1595, water, A24261, 6-in, 0.40 beta
Gate valve
• Rosemount 1595, water, 04D407574, 4-in, 040 beta
Related information
Single elbow tests
Double elbows in plane
Double elbows out of plane
Swirl generator
8 x 6-in reduction
Butterfly valve at 75 percent open
Gate valve
Rosemount 405 and 1595 15
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Test facilities and flow tests Reference Manual
May 2022 00821-0100-4810
3.5 Run to run repeatability
Sensor serial number 06442
Test laboratory
Model
Fluid
Sensor serial number
Beta ratio
Pipe size
Pipe inner dimension
Test date
Rosemount Boulder, Colorado flow lab
Rosemount 405P
Water
06442
0.40
1.5 in (38 mm) schedule 40
1.61 in (40.9 mm)
March 8, 2001
Figure 3-1: Sensor 06442 test results
Table 3-1: Test 1, sensor serial number 06442
Data
point
number
1 66.7 19.3 28.2 1.95 1.0204 62.3168 254.354 22.88 4.40E +040.6009
2 66.7 19.3 28.2 1.94 1.0202 62.3167 254.120 22.88 4.40E +040.6010
3 66.7 19.2 28.2 1.95 1.0306 62.3169 156.639 17.98 3.46E +040.6016
4 66.7 19.3 28.2 1.95 1.0203 62.3167 137.781 16.87 3.24E +040.6018
16 Emerson.com/Rosemount
Temperature Pressure Viscos-
ity
°F °C psig barg cP lb/ft
Density Differen
-tial
pressure
3
in water GPM
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
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Reference Manual Test facilities and flow tests
00821-0100-4810 May 2022
Table 3-1: Test 1, sensor serial number 06442 (continued)
Data
point
number
Temperature Pressure Viscos-
Density Differen
ity
°F °C psig barg cP lb/ft
-tial
pressure
3
in water GPM
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
5 66.7 19.3 28.2 1.94 1.0204 62.3169 91.223 13.74 2.64E +040.6026
6 66.9 19.4 28.1 1.94 1.0172 62.3151 56.368 10.82 2.09E +040.6035
7 66.8 19.4 28.1 1.94 1.0179 62.3154 57.750 10.95 2.11E +040.6034
8 67.0 19.5 28.1 1.93 1.0155 62.3142 30.006 7.91 1.53E +040.6046
9 67.1 19.5 28.0 1.93 1.0137 62.3132 17.030 5.97 1.15E +040.6055
10 67.3 19.6 28.0 1.93 1.0116 62.3124 7.628 4.01 7.77E +030.6073
11 67.5 19.7 28.0 1.93 1.0091 62.3104 4.359 3.03 5.90E +030.6088
12 67.5 19.7 28.0 1.93 1.0085 62.3103 4.342 3.03 5.89E +030.6089
Table 3-2: Test 2, sensor serial number 06442
Data
point
number
1 72.7 22.6 28.2 1.94 0.9415 62.2692 248.988 22.65 4.72E +040.6009
2 72.7 22.6 28.1 1.94 0.9409 62.2688 255.919 22.95 4.78E +040.6006
3 72.8 22.7 28.1 1.93 0.9394 62.2677 156.139 17.96 3.75E +040.6015
4 72.9 22.7 28.0 1.93 0.9385 62.2671 146.624 17.40 3.63E +040.6015
5 73.1 22.8 28.0 1.93 0.9359 62.2653 91.484 13.77 2.88E +040.6026
6 73.4 23.0 27.9 1.92 0.9330 62.2633 57.017 10.89 2.29E +040.6035
7 73.3 22.9 27.9 1.92 0.9337 62.2637 57.898 10.97 2.30E +040.6035
8 73.7 23.2 27.9 1.92 0.9283 62.2598 30.126 7.93 1.67E +040.6049
Temperature Pressure Viscos-
Density Differen
ity
°F °C psig barg cP lb/ft
-tial
pressure
3
in water GPM
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
Rosemount 405 and 1595 17
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Test facilities and flow tests Reference Manual
May 2022 00821-0100-4810
Table 3-2: Test 2, sensor serial number 06442 (continued)
Data
point
number
9 74.2 23.4 27.8 1.92 0.9230 62.2558 17.114 5.98 1.27E +040.6054
10 75.1 23.9 27.8 1.91 0.9122 62.2480 7.602 4.00 8.59E +030.6070
11 76.0 24.5 27.7 1.91 0.9017 62.2395 4.403 3.05 6.62E +030.6077
12 76.1 24.5 27.7 1.91 0.9008 62.2384 4.347 3.03 5.59E +030.6079
Temperature Pressure Viscos-
ity
°F °C psig barg cP lb/ft
Density Differen
-tial
pressure
3
in water GPM
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
Sensor serial number 13443
Test laboratory
Model
Fluid
Sensor serial number
Beta ratio
Pipe size
Rosemount Boulder, Colorado flow lab
Rosemount 405P
Water
13443
0.65
2 in (51 mm) schedule 40
Pipe inner dimension
Test date
2.067 in (52.50 mm)
January 17, 2001
Figure 3-2: Sensor 13443 test results
18 Emerson.com/Rosemount
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Reference Manual Test facilities and flow tests
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Table 3-3: Test 1, sensor serial number 13443
Data
point
number
Temperature Pressure Viscos-
Density Differen
ity
°F °C psig barg cP lb/ft
-tial
pressure
3
in water GPM
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
1 66.3 19.1 28.8 1.92 1.0250 62.3192 248.526 109.75 1.64E +050.6046
2 66.4 19.1 28.2 1.94 1.0247 62.3190 182.047 93.84 1.40E +050.6041
3 66.4 19.1 28.4 1.96 1.0238 62.3186 106.591 71.81 1.07E +050.6041
4 66.5 19.2 28.5 1.96 1.0228 62.3180 61.849 54.84 8.19E +040.6057
5 66.5 19.2 28.5 1.96 1.0224 62.3178 61.803 84.83 8.19E +040.6058
6 66.5 19.2 28.4 1.96 1.0220 62.3176 51.317 49.97 7.47E +040.6059
7 66.6 19.2 28.4 1.96 1.0207 62.3169 31.492 39.19 5.86E +040.6066
8 67.8 19.3 28.3 1.95 1.0188 62.3159 15.869 27.99 4.20E +040.6103
9 67.0 19.4 28.2 1.94 1.0160 62.3145 5.781 17.00 2.55E +040.6140
10 67.2 19.6 28.1 1.94 1.0129 62.3129 3.783 13.80 2.08E +040.6161
11 67.2 19.5 28.1 1.94 1.0135 62.3130 3.820 13.86 2.09E +040.6160
Table 3-4: Test 2, sensor serial number 13443
Data
point
number
1 66.5 19.2 27.8 1.92 1.0228 62.3180 248.957 109.62 1.64E +050.6034
2 66.5 19.2 28.2 1.94 1.0222 62.3177 181.498 93.71 1.40E +050.6041
3 66.6 19.2 28.5 1.96 1.0214 62.3173 106.147 71.85 1.07E +050.6057
4 66.7 19.3 28.5 1.96 1.0205 62.3168 62.069 55.05 8.24E +040.6069
5 66.7 19.3 28.5 1.96 1.0201 62.3166 61.437 54.72 8.19E +040.6064
Temperature Pressure Viscos-
Dens-ity Differen
ity
°F °C psig barg cP lb/ft
-tial
pressure
3
in water GPM
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
Rosemount 405 and 1595 19
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Test facilities and flow tests Reference Manual
May 2022 00821-0100-4810
Table 3-4: Test 2, sensor serial number 13443 (continued)
Data
point
number
6 66.7 19.3 28.4 1.96 1.0195 62.3163 52.008 50.32 7.54E +040.6061
7 66.7 19.3 28.4 1.96 1.0184 62.3157 30.888 38.87 5.83E +040.6074
8 66.9 19.4 28.3 1.95 1.0165 62.3147 15.937 28.01 4.21E +040.6094
9 67.0 19.4 28.3 1.95 1.0160 62.3145 5.821 17.01 2.56E +040.6123
10 67.1 19.5 28.2 1.95 1.0140 62.3134 3.759 13.71 2.06E +040.6142
11 67.1 19.5 28.2 1.95 1.0139 62.3134 3.815 13.81 2.08E +040.6141
Temperature Pressure Viscos-
ity
°F °C psig barg cP lb/ft
Dens-ity Differen
-tial
pressure
3
in water GPM
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
Sensor serial number 26171
Test laboratory
Model
Rosemount Boulder, Colorado flow lab
Rosemount 405P
Fluid
Sensor serial number
Beta ratio
Pipe size
Pipe inner dimension
Test date
Water
26171
0.65
4 in (102 mm) schedule 40
4.026 in (102.26 mm)
February 12, 2001
20 Emerson.com/Rosemount
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Reference Manual Test facilities and flow tests
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Figure 3-3: Sensor 26171 test results
Table 3-5: Test 1, sensor serial number 26171
Data
point
number
Temperature Pressure Viscos-
Density Differen
ity
°F °C psig barg cP lb/ft
-tial
pressure
3
in water GPM
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
1 67.1 19.5 39.1 2.70 1.0145 62.3137 239.216 401.62 3.11E +050.6024
2 67.1 19.5 39.1 2.70 1.0138 62.3133 239.236 401.59 3.11E +050.6023
3 67.1 19.5 36.3 2.51 1.0148 62.3138 165.292 333.92 2.58E +050.6025
4 67.5 19.7 39.8 2.75 1.0092 62.3108 96.979 255.97 1.99E +050.6030
5 67.6 19.8 40.2 2.77 1.0068 62.3095 56.898 196.54 1.53E +050.6044
6 67.7 19.8 40.2 2.77 1.0061 62.3091 56.884 196.50 1.53E +050.6044
7 67.4 19.7 36.2 2.50 1.0097 62.3111 46.432 177.61 1.38E +050.6046
8 67.5 19.7 36.8 2.54 1.0081 62.3102 27.880 137.90 1.07E +050.6058
9 67.7 19.8 37.3 2.57 1.0062 62.3092 14.235 98.76 7.70E +040.6072
10 67.8 19.9 37.6 2.59 1.0042 62.3081 5.057 59.23 4.63E +040.6109
Rosemount 405 and 1595 21
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May 2022 00821-0100-4810
Table 3-5: Test 1, sensor serial number 26171 (continued)
Data
point
number
11 68.0 20.0 37.8 2.60 1.0022 62.3069 3.538 49.53 3.88E +040.6108
12 68.0 20.0 37.8 2.60 1.0015 62.3066 3.557 49.71 3.89E +040.6114
Temperature Pressure Viscos-
ity
°F °C psig barg cP lb/ft
Density Differen
-tial
pressure
3
in water GPM
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
Table 3-6: Test 2, sensor serial number 26171
Data
point
number
1 66.8 19.3 39.1 2.69 1.0188 62.3160 238.770 401.39 3.09E +050.6026
2 66.8 19.3 39.0 2.69 1.0182 62.3156 238.510 401.34 3.09E +050.6028
3 66.8 19.3 36.7 2.53 1.0188 62.3159 164.445 333.38 2.57E +050.6031
4 67.0 19.4 38.1 2.62 1.0162 62.3146 96.245 255.27 1.97E +050.6036
Temperature Pressure Viscos-
ity
°F °C psig barg cP lb/ft
Density Differen
-tial
pressure
3
in water GPM
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
5 67.2 19.5 39.0 2.69 1.0135 62.3131 56.888 196.62 1.52E +050.6047
6 67.2 19.6 39.0 2.69 1.0129 62.3128 56.943 196.52 1.52E +050.6041
7 67.1 19.5 36.0 2.48 1.0137 62.3132 46.106 177.19 1.37E +050.6053
8 67.3 19.6 36.6 2.52 1.0119 62.3123 27.775 137.87 1.07E +050.6068
9 67.4 19.7 37.2 2.56 1.0100 62.3113 14.234 98.94 7.69E +040.6083
10 67.6 19.8 37.5 2.58 1.0079 62.3101 5.058 59.22 4.61E +040.6109
11 67.6 19.8 37.6 2.60 1.0077 62.3100 3.535 49.56 3.86E +040.6115
12 67.6 19.8 37.6 2.59 1.0079 62.3101 3.530 49.56 3.89E +040.6119
Sensor serial number 08261
Test laboratory
Model
Rosemount Boulder, Colorado flow lab
Rosemount 405C
22 Emerson.com/Rosemount
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Reference Manual Test facilities and flow tests
00821-0100-4810 May 2022
Fluid
Sensor serial number
Beta ratio
Pipe size
Pipe inner dimension
Test date
Water
08261
0.40
2 in (51 mm) schedule 40
2.066 in (52.48 mm)
May 29, 2002
Figure 3-4: Sensor 08261 test results
Table 3-7: Test 1, sensor serial number 08261
Data
point
number
1 85.0 29. 4 28.3 1.95 0.8074 62.1497 246.390 37.87 7.15E +050.6049
2 85.1 29.5 28.3 1.95 0.8062 62.1484 246.087 37.84 7.15E +050.6048
3 85.1 29.5 28.3 1.95 0.8057 62.1479 173.118 31.76 6.01E +050.6052
4 85.2 29.6 28.2 1.94 0.8050 62.1470 105.641 24.83 4.70E +050.6056
5 85.1 29.5 28.3 1.95 0.8059 62.1480 61.992 19.05 3.60E +050.6066
6 85.1 29.5 28.2 1.95 0.8062 62.1484 62.056 19.06 3.60E +050.6065
7 85.1 29. 5 28.2 1.95 0.8061 62.1483 48.369 16.83 3.18E +050.6069
Temperature Pressure Viscos-
ity
°F °C psig barg cP lb/ft
Dens-ity Differen
-tial
pressure
3
in water GPM
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
Rosemount 405 and 1595 23
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Test facilities and flow tests Reference Manual
May 2022 00821-0100-4810
Table 3-7: Test 1, sensor serial number 08261 (continued)
Data
point
number
Temperature Pressure Viscos-
Dens-ity Differen
ity
°F °C psig barg cP lb/ft
-tial
pressure
3
in water GPM
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
8 85.1 29.5 28.1 1.94 0.8060 62.1481 27.581 12.73 2.41E +050.6078
9 85.2 29.6 28.2 1.94 0.8054 62.1475 16.431 9.85 1.86E +040.6095
10 85.2 29.6 28.1 1.94 0.8050 62.1471 6.005 5.98 1.13E +040.6122
Table 3-8: Test 2, sensor serial number 08261
Data
point
number
1 67.5 19.7 28.4 1.96 1.0088 62.3106 240.299 37.41 5.67E +040.6060
2 67.4 19.7 28.4 1.95 1.0099 62.3112 240.572 37.43 5.66E +040.6060
3 67.5 19.7 28.3 1.95 1.0094 62.3109 177.971 32.21 4.88E +040.6064
Temperature Pressure Viscos-
Density Differen
ity
°F °C psig barg cP lb/ft
-tial
pressure
3
in water GPM
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
4 67.6 19.8 28.2 1.95 1.0079 62.3101 107.432 25.05 3.80E +040.6068
5 67.6 19.8 28.3 1.95 1.0075 62.3099 60.460 18.84 2.86E +040.6084
6 67.6 19.8 28.3 1.95 1.0073 62.3097 60.423 18.83 2.86E +040.6084
7 67.6 19.8 28.3 1.95 1.0070 62.3096 50.926 17.29 2.62E +040.6085
8 67.7 19.8 28.2 1.94 1.0057 62.3089 28.372 12.93 1.97E +040.6098
9 67.9 19.9 28.2 1.95 1.0038 62.3078 17.078 10.06 1.53E +040.6111
10 68.0 20.0 28.1 1.94 1.0014 62.3066 6.160 6.07 9.26E +030.6140
24 Emerson.com/Rosemount
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Reference Manual Test facilities and flow tests
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Table 3-9: Test 3, sensor serial number 08261
Data
point
number
1 66.6 19.2 28.4 1.96 1.0218 62.3175 242.040 37.55 5.62E +040.6060
2 66.6 19.2 28.4 1.96 1.0216 62.3174 241.797 37.52 5.61E +040.6060
3 66.6 19.2 28.3 1.95 1.0207 62.3170 174.615 31.92 4.78E +040.6067
4 66.8 19.3 28.3 1.95 1.0190 62.3160 107.910 25.11 3.77E +040.6070
5 66.9 19.4 28.3 1.95 1.0173 62.3151 61.892 19.06 2.86E +040.6084
6 66.9 19.4 28.3 1.95 1.0168 62.3149 62.009 19.08 2.87E +040.6086
7 67.0 19.4 28.2 1.95 1.0161 62.3145 48.438 16.87 2.54E +040.6087
8 67.2 19.5 28.2 1.94 1.0131 62.3129 27.870 12.83 1.94E +040.6102
9 67.4 19.7 28.2 1.94 1.0105 62.3115 16.348 9.84 1.49E +040.6112
Temperature Pressure Viscos-
ity
°F °C psig barg cP lb/ft
Density Differen
-tial
pressure
3
in water GPM
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
10 67.6 19.8 28.1 1.94 1.0071 62.3095 5.917 5.95 9.02E +030.6139
Sensor serial number 12402
Test laboratory
Model
Fluid
Sensor serial number
Beta ratio
Pipe size
Pipe inner dimension
Test date
Rosemount Boulder, Colorado flow lab
Rosemount 405C
Water
12402
0.60
2 in (51 mm) schedule 40
2.066 in (52.48 mm)
May 29, 2002
Rosemount 405 and 1595 25
Page 26
Test facilities and flow tests Reference Manual
May 2022 00821-0100-4810
Figure 3-5: Sensor 12402 test results
Table 3-10: Test 1, sensor serial number 12402
Data
point
number
1 66.6 19.2 28.2 1.95 1.0215 62.3174 265.761 93.08 1.39E +050.6112
2 66.6 19.2 28.2 1.94 1.0218 62.3175 269.224 93.66 1.40E +050.6110
3 66.6 19.2 28.4 1.96 1.0217 62.3175 200.526 80.84 1.21E +050.6111
4 66.6 19.2 28.5 1.96 1.0210 62.3171 125.494 64.00 9.57E +040.6115
5 66.6 19.2 28.4 1.96 1.0210 62.3171 125.292 63.97 9.57E +040.6117
6 66.6 19.2 28.4 1.96 1.0208 62.3170 86.271 53.10 7.95E +040.6120
7 66.7 19.3 28.4 1.96 1.0197 62.3164 56.759 43.08 6.45E +040.6121
8 66.8 19.4 28.4 1.96 1.0178 62.3154 34.709 33.77 5.07E +040.6136
Temperature Pressure Viscos-
Density Differen
ity
°F °C psig barg cP lb/ft
-tial
pressure
3
in water GPM
Flow
rate
Pipe
Reynolds
number
Discharge
coefficie
nt
9 67.0 19.4 28.3 1.95 1.0159 62.3145 17.529 24.01 3.61E +040.6137
26 Emerson.com/Rosemount
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Reference Manual Test facilities and flow tests
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Table 3-11: Test 2, sensor serial number 12402
Data
point
number
1 67.0 19.4 28.2 1.94 1.0160 62.3145 263.666 92.83 1.40E +050.6119
2 67.0 19.4 28.2 1.94 1.0162 62.3146 264.049 92.87 1.40E +050.6118
3 67.0 19.4 28.3 1.95 1.0159 62.3144 200.742 81.05 1.22E +050.6123
4 67.1 19.5 28.4 1.96 1.0148 62.3139 124.906 63.99 9.63E +040.6129
5 67.1 19.5 28.4 1.96 1.0149 62.3139 124.940 63.98 9.63E +040.6127
6 67.1 19.5 28.4 1.96 1.0146 62.3137 84.779 52.74 7.94E +040.6132
7 67.1 19.5 28.3 1.95 1.0137 62.3132 57.319 43.38 6.54E +040.6133
8 67.3 19.6 28.3 1.95 1.0115 62.3120 35.026 33.96 5.13E +040.6142
9 67.4 19.7 28.2 1.95 1.0095 62.3109 17.140 23.78 3.60E +040.6149
Temperature Pressure Viscos-
ity
°F °C psig bar cP lb/ft
Density Differen
-tial
pressure
3
in water GPM
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
Sensor serial number 16261
Test laboratory
Model
Fluid
Sensor serial number
Beta ratio
Pipe size
Pipe inner dimension
Test date
Rosemount Boulder, Colorado flow lab
Rosemount 405C
Water
16261
0.40
4 in (102 mm) schedule 40
2.066 in (52.48 mm)
October 31, 2002
Rosemount 405 and 1595 27
Page 28
Test facilities and flow tests Reference Manual
May 2022 00821-0100-4810
Figure 3-6: Sensor 16261 test results
Table 3-12: Test 1, sensor serial number 16261
Data
point
number
1 68.0 20.0 36.4 2.51 1.0025 62.3071 243.769 144.92 1.13E +050.6107
2 68.0 20.0 36.4 2.51 1.0025 62.3072 243.604 144.93 1.13E +050.6109
3 67.9 20.0 35.8 2.47 1.0028 62.3073 195.795 130.02 1.02E +050.6114
4 67.9 20.0 35.9 2.48 1.0028 62.3073 155.412 115.82 9.06E +040.6113
5 67.9 20.0 36.0 2.48 1.0028 62.3073 118.376 101.13 7.91E +040.6115
6 67.9 20.0 36.0 2.48 1.0028 62.3073 118.489 101.18 7.91E +040.6116
7 67.9 20.0 36.1 2.49 1.0028 62.3073 88.385 87.29 6.83E +040.6109
8 67.9 20.0 36.2 2.50 1.0028 62.3073 61.124 72.65 5.68E +040.6114
Temperature Pressure Viscos-
ity
°F °C psig barg cP lb/ft
Density Differen
-tial
pressure
3
in water GPM
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
9 67.9 20.0 36.3 2.50 1.0027 62.3073 38.574 57.84 4.52E +040.6128
10 67.9 20.0 36.4 2.51 1.0028 62.3073 22.125 43.81 3.43E +040.6128
28 Emerson.com/Rosemount
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Table 3-13: Test 2, sensor serial number 16261
Data
point
number
Temperature Pressure Viscos-
Density Differen
ity
°F °C psig barg cP lb/ft
-tial
pressure
3
in water GPM
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
1 67.9 19.9 36.5 2.52 1.0035 62.3077 235.362 142.54 1.11E +050.6113
2 67.9 19.9 36.5 2.52 1.0035 62.3077 235.241 142.48 1.11E +050.6112
3 67.9 19.9 36.0 2.48 1.0038 62.3079 169.396 121.00 9.45E +050.6117
4 67.9 19.9 36.2 2.49 1.0038 62.3079 98.261 92.08 7.19E +040.6112
5 67.9 19.9 36.3 2.50 1.0038 62.3079 59.770 71.88 5.62E +040.6117
6 67.9 19.9 36.3 2.50 1.0038 62.3079 59.255 71.60 5.59E +040.6120
7 67.9 19.9 36.3 2.50 1.0039 62.3079 47.923 64.46 5.04E +040.6126
8 67.9 19.9 36.3 2.51 1.0039 62.3079 28.196 49.42 3.68E +040.6124
Table 3-14: Test 3, sensor serial number 16261
Data
point
number
1 67.0 19.4 34.4 2.38 1.0158 62.3144 225.173 139.36 1.08E +050.6111
2 67.0 19.4 34.5 2.38 1.0159 62.3144 224.968 139.33 1.08E +050.6112
3 67.0 19.4 34.7 2.39 1.0159 62.3144 162.283 118.48 9.15E +040.6120
4 67.0 19.4 35.2 2.43 1.0156 62.3143 94.731 90.54 6.99E +040.6121
5 67.0 19.4 35.7 2.46 1.0155 62.3142 57.254 70.49 5.44E +040.6130
6 67.0 19.4 36.0 2.48 1.0154 62.3142 57.511 70.58 5.45E +040.6124
7 67.0 19.4 36.1 2.49 1.0153 62.3141 45.688 62.95 4.86E +040.6128
8 67.0 19.4 36.2 2.49 1.0153 62.3141 27.085 48.52 3.75E +040.6135
Temperature Pressure Viscos-
Density Differen
ity
°F °C psig barg cP lb/ft
-tial
pressure
3
in water GPM
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
Rosemount 405 and 1595 29
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Test facilities and flow tests Reference Manual
May 2022 00821-0100-4810
Table 3-14: Test 3, sensor serial number 16261 (continued)
Data
point
number
9 67.0 19.4 36.2 2.50 1.0153 62.3140 14.370 35.45 2.74E +040.6152
Temperature Pressure Viscos-
ity
°F °C psig barg cP lb/ft
Density Differen
-tial
pressure
3
in water GPM
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
Sensor serial number 24061
Test laboratory
Model
Fluid
Sensor serial number
Beta ratio
Pipe size
Pipe inner dimension
Test date
Rosemount Boulder, Colorado flow lab
Rosemount 405C
Water
24061
0.60
4 in (102 mm) schedule 40
4.026 in (102.26 mm)
October 31, 2002
Figure 3-7: Sensor serial number 24061 test results
30 Emerson.com/Rosemount
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Reference Manual Test facilities and flow tests
00821-0100-4810 May 2022
Table 3-15: Test 1, sensor serial number 024061
Data
point
number
Temperature Pressure Viscos-
Density Differen
ity
°F °C psig bar cP lb/ft
-tial
pressure
3
in water GPM
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
1 67.3 19.6 37.4 2.58 1.0116 62.3121 236.845 327.56 2.54E +050.6055
2 67.3 19.6 37.8 2.61 1.0110 62.3118 138.245 250.32 1.94E +050.6057
3 67.4 19.7 38.2 2.63 1.0103 62.3115 81.917 192.90 1.50E +050.6064
4 67.4 19.7 38.2 2.63 1.0102 62.3114 81.996 192.96 1.50E +040.6063
5 67.3 19.6 37.4 2.58 1.0112 62.3119 66.511 173.96 1.35E +040.6069
6 67.3 19.6 37.6 2.59 1.0111 62.3119 40.670 136.01 1.05E +040.6068
7 67.2 19.6 35.8 2.47 1.0126 62.3127 20.340 96.45 7.47E +040.6084
8 67.2 19.6 36.1 2.49 1.0127 62.3127 7.372 58.24 4.51E +040.6102
Table 3-16: Test 2, sensor serial number 24061
Data
point
number
1 67.4 19.7 37.5 2.59 1.0097 62.3111 250.530 337.26 2.621E +050.6062
2 67.5 19.7 37.5 2.58 1.0093 62.3108 250.424 337.27 2.62E +050.6063
3 67.6 19.8 37.7 2.60 1.0075 62.3099 190.834 294.71 2.29E +050.6069
4 67.8 19.9 38.3 2.64 1.0052 62.3086 144.725 256.53 2.00E +040.6067
5 67.9 19.9 38.5 2.66 1.0035 62.3077 102.499 215.98 1.69E +040.6069
6 67.9 20.0 38.5 2.66 1.0028 62.3073 102.378 215.86 1.69E +040.6069
7 67.9 19.9 36.5 2.52 1.0036 62.3077 68.912 177.12 1.38E +040.6070
8 68.0 20.0 36.7 2.53 1.0021 62.3069 41.880 137.97 1.08E +040.6065
Temperature Pressure Viscos-
Density Differen
ity
°F °C psig bar cP lb/ft
-tial
pressure
3
in water GPM
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
Rosemount 405 and 1595 31
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Test facilities and flow tests Reference Manual
May 2022 00821-0100-4810
Table 3-17: Test 3, sensor serial number 24061
Data
point
number
1 67.2 19.5 37.4 2.58 1.0133 62.3130 237.830 327.55 2.54E +050.6043
2 67.2 19.6 37.3 2.57 1.0128 62.3128 238.520 327.80 2.54E +050.6039
3 67.3 19.6 37.6 2.59 1.0113 62.3120 184.534 288.58 2.24E +040.6044
4 67.4 19.7 37.8 2.61 1.0096 62.3111 139.408 251.02 1.95E +040.6048
5 67.5 19.7 38.1 2.63 1.0081 62.3102 99.134 211.80 1.65E +040.6052
6 67.6 19.8 38.1 2.63 1.0074 62.3099 99.382 212.16 1.65E +040.6055
7 67.6 19.8 37.5 2.58 1.0071 62.3097 66.986 174.14 1.36E +040.6053
8 67.6 19.8 34.4 2.37 1.0073 62.3098 40.265 135.07 1.05E +040.6056
9 67.7 19.8 34.8 2.40 1.0060 62.3091 20.458 96.48 7.52E +040.6069
Temperature Pressure Viscos-
ity
°F °C psig bar cP lb/ft
Density Differen
-tial
pressure
3
in water GPM
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
10 67.8 19.9 35.4 2.44 1.0044 62.3082 7.360 58.05 4.53E +040.6088
Sensor serial number AT24261
Test laboratory
Model
Fluid
Sensor serial number
Beta ratio
Pipe size
Pipe inner dimension
Test date
Rosemount Boulder, Colorado flow lab
Rosemount 1595
Water
AT24261
0.40
6 in (152.4 mm) schedule 40
6.065 in (154.05 mm)
June 25, 2003
32 Emerson.com/Rosemount
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Reference Manual Test facilities and flow tests
00821-0100-4810 May 2022
Figure 3-8: Sensor serial number AT24261 test results
Table 3-18: Test 1, sensor serial number AT24261
Data
point
number
1 67.9 19.9 37.0 2.55 1.0033 62.3076 242.929 314.82 1.63E +050.5951
2 67.9 19.9 37.0 2.55 1.0032 62.3076 242.995 315.07 1.63E +050.5955
3 67.9 20.0 37.2 2.57 1.0029 62.3073 184.667 274.84 1.43E +050.5958
4 68.0 20.0 37.6 2.59 1.0025 62.3071 136.368 236.09 1.23E +040.5956
5 68.0 20.0 37.9 2.62 1.0019 62.3068 94.751 196.82 1.02E +040.5657
6 68.0 20.0 37.9 2.61 1.0018 62.3067 94.573 196.88 1.02E +040.5964
7 67.8 19.9 35.5 2.45 1.0046 62.3083 60.441 157.43 8.16E +040.5966
8 67.8 19.9 35.9 2.47 1.0046 62.3083 34.000 118.12 6.12E +040.5968
Temperature Pressure Viscos-
Density Differen
ity
°F °C psig bar cP lb/ft
-tial
pressure
3
in water GPM
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
9 67.8 19.9 36.5 2.52 1.0043 62.3081 15.167 78.98 4.09E +040.5975
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Table 3-19: Test 2, sensor serial number AT24261
Data
point
number
1 68.3 20.2 36.8 2.54 0.9975 62.3043 184.537 274.44 1.43E +050.5952
2 68.4 20.2 37.0 2.55 0.9958 62.3043 136.605 236.11 1.23E +050.5952
3 68.5 20.3 37.2 2.57 0.9950 62.3029 94.477 196.61 1.03E +050.5959
4 68.5 20.3 37.2 2.56 0.9950 62.3029 94.477 196.56 1.03E +040.5958
5 68.4 20.2 34.3 2.37 0.9969 62.3040 60.230 157.01 8.20E +040.5960
6 68.4 20.2 34.7 2.39 0.9969 62.3040 34.353 118.65 6.19E +040.5964
7 68.4 20.2 35.0 2.41 0.9969 62.3040 15.183 79.11 4.13E +040.5981
Temperature Pressure Viscos-
ity
°F °C psig bar cP lb/ft
Density Differen
-tial
pressure
3
in water GPM
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
Sensor serial number AT39422
Test laboratory
Rosemount Boulder, Colorado flow lab
Model
Fluid
Sensor serial number
Beta ratio
Pipe size
Pipe inner dimension
Test date
Rosemount 1595
Water
AT39422
0.65
6 in (152.4 mm) schedule 40
6.065 in (154.05 mm)
December 8, 2003
34 Emerson.com/Rosemount
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Reference Manual Test facilities and flow tests
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Figure 3-9: Sensor serial number AT39422 test results
Table 3-20: Test 1, sensor serial number AT39422
Data
point
number
1 73.7 23.1 34.9 2.41 0.9293 62.2605 246.421 896.37 5.02E +050.5849
2 73.7 23.1 34.9 2.41 0.9287 62.2601 246.243 896.42 5.02E +050.5852
3 73.8 23.2 35.6 2.46 0.9274 62.2592 194.094 798.20 4.48E +050.5869
4 73.9 23.3 36.2 2.50 0.9259 62.2581 143.752 686.74 3.86E +050.5867
5 74.1 23.4 36.7 2.53 0.9243 62.2569 104.087 584.45 3.29E +050.5868
6 74.1 23.4 36.7 2.53 0.9238 62.2565 104.126 584.84 3.29E +050.5871
7 74.3 23.5 37.4 2.58 0.9217 62.2550 64.776 461.19 2.60E +050.5870
8 74.5 23.6 38.0 2.62 0.9195 62.2534 38.887 358.02 2.02E +050.5881
Temperature Pressure Viscos-
Density Differen
ity
°F °C psig bar cP lb/ft
-tial
pressure
3
in water GPM
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
9 74.4 23.6 36.6 2.52 0.9204 62.2540 18.604 248.00 1.40E +050.5890
10 74.4 23.6 33.8 2.33 0.9206 62.2541 5.895 140.06 7.91E +040.5909
Rosemount 405 and 1595 35
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Table 3-21: Test 2, sensor serial number AT39422
Data
point
number
1 78.6 25.9 34.7 2.40 0.8732 62.2155 248.832 901.54 5.37E +050.5852
2 78.6 25.9 34.7 2.40 0.8727 62.2151 249.404 901.42 5.37E +050.5844
3 78.8 26.0 36.1 2.49 0.8703 62.2129 151.249 705.21 4.21E +050.5871
4 78.9 26.1 36.7 2.53 0.8688 62.2117 102.724 581.20 3.48E +040.5871
5 79.0 26.1 36.7 2.53 0.8683 62.2112 102.445 580.57 3.47E +040.5873
6 79.1 26.2 37.3 2.57 0.8667 62.2098 66.413 467.17 2.80E +040.5869
7 79.3 26.3 38.0 2.62 0.8647 62.2079 35.660 342.70 2.06E +040.5876
8 79.3 26.3 37.1 2.62 0.8649 62.2081 18.254 245.89 1.48E +050.5892
9 79.3 26.3 36.4 2.62 0.8647 62.2079 5.715 137.91 8.29E +050.5906
Temperature Pressure Viscos-
ity
°F °C psig bar cP lb/ft
Density Differen
-tial
pressure
3
in water GPM
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
Sensor serial number AT48003
Test laboratory
Model
Fluid
Sensor serial number
Beta ratio
Pipe size
Pipe inner dimension
Test date
Foxboro Co. flow lab
Rosemount 1595
Water
AT48003
0.40
12 in (304.8 mm) schedule 40
12 in (304.8 mm)
June 4, 2003
36 Emerson.com/Rosemount
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Reference Manual Test facilities and flow tests
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Figure 3-10: Sensor serial number AT39422 test results
Table 3-22: Test 1, sensor serial number AT48003
Data
point
number
1 83.8 28.8 37.4 2.58 0.8163 62.1338 243.953 1230.24 3.93E +050.5954
2 83.7 28.7 37.4 2.58 0.8172 62.1348 244.527 1231.76 3.93E +050.5955
3 83.8 28.8 37.8 2.61 0.8163 62.1338 194.976 1094.78 3.50E +050.5958
4 83.9 28.8 38.3 2.64 0.8153 62.1328 147.445 956.92 3.06E +050.5957
5 83.9 28.8 38.3 2.64 0.8153 62.1328 108.420 820.97 3.63E +050.5960
6 84.0 28.9 38.3 2.64 0.8143 62.1318 76.038 687.71 2.20E +050.5962
7 84.2 29.0 38.3 2.64 0.8123 62.1297 76.047 687.65 2.21E +050.5961
8 84.3 29.1 38.3 2.64 0.8114 62.1287 48.144 547.09 1.76E +050.5960
Temperature Pressure Viscos-
Density Differen
ity
°F °C psig bar cP lb/ft
-tial
pressure
3
in Water GPM
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
9 84.3 29.1 38.3 2.64 0.8114 62.1287 24.195 388.06 1.25E +050.5964
10 84.4 29.1 38.3 2.64 0.8104 62.1276 11.587 268.23 8.64E +040.5956
Rosemount 405 and 1595 37
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May 2022 00821-0100-4810
Table 3-23: Test 2, sensor serial number AT48003
Data
point
number
Temperature Pressure Viscos-
Density Differen
ity
°F °C psig bar cP lb/ft
-tial
pressure
3
in Water GPM
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
1 81.7 27.6 37.4 2.58 0.8374 62.1550 244.394 1232.03 3.84E +050.5959
2 81.7 27.6 37.4 2.58 0.8374 62.1550 244.315 1232.16 3.84E +050.5960
3 81.7 27.6 37.8 2.61 0.8374 62.1550 192.074 1092.15 3.41E +050.5958
4 81.8 27.7 38.3 2.64 0.8364 62.1540 148.351 959.64 3.00E +050.5957
5 82.0 27.8 38.3 2.64 0.8343 62.1520 108.735 821.89 2.57E +050.5959
6 82.2 27.9 38.3 2.64 0.8323 62.1500 76.239 688.29 2.16E +050.5960
7 82.3 27.9 38.3 2.64 0.8313 62.1490 76.240 689.03 2.16E +050.5966
8 82.7 28.2 38.3 2.64 0.8272 62.1450 47.980 546.88 1.73E +050.5969
9 82.1 27.8 38.3 2.64 0.8333 62.1510 24.072 387.54 1.21E +050.5972
10 82.0 27.8 38.3 2.64 0.8343 62.1520 11.542 267.86 8.38E +040.5961
Table 3-24: Test 3, sensor serial number AT48003
Data
point
number
1 82.0 27.8 37.4 2.58 0.8343 62.1520 248.670 1242.69 3.89E +050.5958
2 82.0 27.8 37.4 2.58 0.8343 62.1520 248.517 1242.52 3.89E +050.5959
3 82.0 27.8 37.8 2.61 0.8343 62.1520 192.911 1094.65 3.43E +050.5959
4 82.1 27.8 38.3 2.64 0.8333 62.1510 148.520 960.95 3.01E +050.5962
5 82.3 27.9 38.3 2.64 0.8313 62.1490 108.433 821.33 2.58E +050.5963
6 82.4 28.0 38.3 2.64 0.8302 62.1480 75.718 686.29 2.16E +050.5963
Temperature Pressure Viscos-
Density Differen
ity
°F °C psig bar cP lb/ft
-tial
pressure
3
in Water GPM
Flow
rate
Pipe
Reynolds
number
Dischar
ge coefficient
38 Emerson.com/Rosemount
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Reference Manual Test facilities and flow tests
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Table 3-24: Test 3, sensor serial number AT48003 (continued)
Data
point
number
7 82.7 28.2 38.3 2.64 0.8272 62.1450 75.828 686.79 2.17E +050.5963
8 83.1 28.4 38.3 2.64 0.8232 62.1410 48.240 548.29 1.74E +050.5968
9 82.4 28.0 38.3 2.64 0.8302 62.1480 24.287 389.31 1.22E +050.5973
10 82.4 28.0 38.3 2.64 0.8302 62.1480 12.004 273.51 8.60E +040.5968
Temperature Pressure Viscos-
ity
°F °C psig bar cP lb/ft
Density Differen
-tial
pressure
3
in Water GPM
Flow
rate
Pipe
Reynolds
number
Dischar
ge coefficient
3.6 Single elbow tests
Tests at Rosemount flow lab
Test laboratory
Model
Fluid
Sensor serial number
Rosemount Boulder, Colorado flow lab
Rosemount 405C
Water
08261
Beta ratio
Pipe size
Pipe inner dimension
Test date
0.40
2 in (51 mm) schedule 40
2.066 in (52.48 mm)
June 10, 2002
Rosemount 405 and 1595 39
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Test facilities and flow tests Reference Manual
May 2022 00821-0100-4810
Figure 3-11: Single elbow test results for sensor 08261 in water
Table 3-25: Straight run test, sensor serial number 08261
Data
point
number
1 85.1 29.5 28.3 1.95 0.8057 62.1479 173.118 31.76 6.01E +050.6052
2 85.2 29.6 28.2 1.94 0.8050 62.1470 105.641 24.83 4.70E +050.6056
3 85.1 29.5 28.3 1.95 0.8059 62.1480 61.992 19.05 3.60E +050.6066
4 85.1 29.5 28.2 1.95 0.5062 62.1484 62.056 19.06 3.60E +050.6065
5 85.1 29.5 28.2 1.95 0.8061 62.1483 48.369 16.83 3.18E +050.6069
6 85.1 29.5 28.1 1.94 0.8060 62.1481 27.581 12.73 2.41E +050.6078
Table 3-26: Test 2, sensor serial number AT48003
Data
point
number
Temperature Pressure Viscos-
Density Differen
ity
°F °C psig bar cP lb/ft
Temperature Pressure Viscos-
Density Differen
ity
°F °C psig bar cP lb/ft
-tial
pressure
3
in water GPM
-tial
pressure
3
in water GPM
Flow
rate
Flow
rate
Pipe
Reynolds
number
Pipe
Reynolds
number
Discharge
coefficient
Discharge
coefficient
1 67.3 19.6 36.7 2.53 1.0119 62.3123 232.053 36.70 5.54E +050.6050
2 67.3 19.6 36.7 2.53 1.0119 62.3123 231.905 36.68 5.54E +050.6049
40 Emerson.com/Rosemount
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Reference Manual Test facilities and flow tests
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Table 3-26: Test 2, sensor serial number AT48003 (continued)
Data
point
number
3 67.3 19.6 36.7 2.53 1.0119 62.3123 199.157 34.04 5.14E +050.6057
4 67.3 19.6 36.7 2.53 1.0120 62.3123 164.700 30.94 4.67E +050.6055
5 67.3 19.6 36.7 2.53 1.0120 62.3123 142.917 28.87 4.36E +050.6064
6 67.3 19.6 36.7 2.53 1.0120 62.3123 142.762 28.86 4.36E +050.6065
7 67.3 19.6 36.7 2.53 1.0119 62.3123 123.567 26.81 4.05E +050.6057
8 67.3 19.6 36.8 2.54 1.0120 62.3123 108.320 25.18 3.80E +050.6076
9 67.3 19.6 36.8 2.54 1.0120 62.3123 97.560 23.87 3.61E +050.6070
10 67.3 19.6 36.8 2.54 1.0120 62.3123 89.285 22.83 3.45E +050.6069
11 67.3 19.6 36.8 2.54 1.0120 62.3123 56.824 18.21 2.75E +050.6066
Temperature Pressure Viscos-
ity
°F °C psig bar cP lb/ft
Density Differen
-tial
pressure
3
in water GPM
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
Testing at SwRI flow lab
Model
Fluid
Sensor serial number
Beta ratio
Pipe size
Pipe inner dimension
Test date
Rosemount 405C
Natural gas
08261
0.40
2 in (51 mm)
2.066 in (52.48 mm)
August 21, 2002
Rosemount 405 and 1595 41
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Test facilities and flow tests Reference Manual
May 2022 00821-0100-4810
Figure 3-12: Test results for sensor 08261 in natural gas
Table 3-27: Straight run test results for sensor 08261 in natural gas
Data
point
number
1 74.6 23.7 188.7 13.01 0.5918 230.638 0.4877 4.78E +050.6034
2 74.4 23.6 188.6 13.00 0.5917 230.319 0.4874 4.78E +050.6035
3 74.4 23.5 188.5 12.99 0.5913 230.159 0.4871 4.78E +050.6035
4 74.8 23.8 189.1 13.04 0.5868 175.674 0.4252 4.17E +050.6036
5 74.8 23.8 189.0 13.03 0.5865 175.634 0.4249 4.16E +050.6035
6 74.7 23.7 188.8 13.02 0.5861 175.256 0.4247 4.16E +050.6038
7 76.4 24.7 189.8 13.09 0.5781 90.143 0.3035 2.97E +050.6031
8 76.4 24.7 189.7 13.08 0.5779 90.043 0.3033 2.97E +050.6033
Temperature Pressure Density Differen-
tial
pressure
°F °C psig bar lb/ft
3
in water lbm/sec
Flow rate Pipe Rey-
nolds
number
Discharge
coefficient
9 76.4 24.7 189.7 13.08 0.5776 90.143 0.3032 2.96E +050.6028
10 75.5 24.3 190.2 13.12 0.5738 33.370 0.1835 1.80E +050.5996
11 75.8 24.3 190.2 13.11 0.5736 33.370 0.1834 1.79E +050.5995
42 Emerson.com/Rosemount
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Table 3-27: Straight run test results for sensor 08261 in natural gas (continued)
Data
point
number
Temperature Pressure Density Differen-
tial
pressure
°F °C psig bar lb/ft
3
in water lbm/sec
Flow rate Pipe Rey-
nolds
number
Discharge
coefficient
12 76.0 24.4 190.09 13.11 0.5732 33.309 0.1833 1.79E +050.5999
13 77.3 25.2 190.5 13.14 0.5709 14.696 0.1219 1.19E +050.6013
14 77.6 25.3 190.49 13.13 0.5704 14.696 0.1218 1.19E +050.6013
15 77.8 25.5 190.4 13.13 0.5700 14.696 0.1218 1.19E +050.6012
Table 3-28: Natural gas test results after single elbow, sensor serial number 08261
Data
point
number
1 81.5 27.5 189.2 13.04 0.5903 292.520 0.4853 4.71E +050.6025
2 81.1 27.3 189.1 13.04 0.5904 229.361 0.4851 4.71E +050.6024
Temperature Pressure Density Differen-
tial
pressure
°F °C psig bar lb/ft
3
in water lbm/sec
Flow rate Pipe Rey-
nolds
number
Discharge
coefficient
3 80.9 27.2 189.0 13.03 0.5904 229.361 0.4850 4.71E +050.6023
4 80.7 27.1 189.5 13.07 0.5864 174.977 0.4237 4.12E +050.6027
5 80.7 27.0 189.5 13.06 0.5863 175.116 0.4237 4.12E +050.6025
6 80.6 27.0 189.4 13.06 0.5862 175.116 0.4236 4.12E +050.6024
7 80.9 27.2 190.0 13.10 0.5781 89.843 0.3025 2.94E +050.6021
8 81.0 27.2 189.9 13.10 0.5778 89.843 0.3025 2.94E +050.6021
9 81.1 27.3 189.9 13.09 0.5776 89.483 0.3024 2.94E +050.6021
10 82.1 27.8 190.7 13.15 0.5726 33.127 0.1829 1.77E +050.6004
11 82.3 27.9 190.7 13.15 0.5725 33.066 0.1829 1.779E +050.6011
12 82.5 28.0 190.7 13.15 0.5723 33.066 0.1828 1.77E +050.6011
Rosemount 405 and 1595 43
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May 2022 00821-0100-4810
Table 3-28: Natural gas test results after single elbow, sensor serial number 08261 (continued)
Data
point
number
13 83.0 28.3 190.4 13.13 0.5687 14.535 0.1212 1.17E +050.6025
14 83.3 28.5 190.4 13.13 0.5684 14.535 0.1212 1.17E +050.6026
15 83.5 28.6 190.4 13.13 0.5681 14.535 0.1212 1.17E +050.6026
Temperature Pressure Density Differen-
tial
pressure
°F °C psig bar lb/ft
3
in water lbm/sec
Flow rate Pipe Rey-
nolds
number
Discharge
coefficient
3.7 Double elbows in plane
Rosemount flow lab
Test laboratory
Model
Fluid
Sensor serial number
Beta ratio
Rosemount Boulder, CO flow lab
Rosemount 405C
Water
08261
0.40
Pipe size
Pipe inner dimension
Test date
2 in (50.8 mm) schedule 40
2.066 in (52.48 mm)
July 2, 2002
Figure 3-13: Double elbows in plane test results in water
44 Emerson.com/Rosemount
Page 45
Reference Manual Test facilities and flow tests
00821-0100-4810 May 2022
Table 3-29: Straight run test, sensor serial number 08261
Data
point
number
Temperature Pressure Viscos-
Density Differen
ity
°F °C psig bar cP lb/ft
-tial
pressure
3
in water lbm/sec
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
1 85.1 29.5 28.3 1.95 0.8057 62.1479 173.118 31.76 6.01E +050.6052
2 85.2 29.6 28.2 1.94 0.8050 62.1470 105.641 24.83 4.70E +050.6056
3 85.1 29.5 28.3 1.95 0.8059 62.1480 61.992 19.05 3.60E +050.6066
4 85.1 29.5 28.2 1.95 0.8062 62.1484 62.056 19.06 3.60E +050.6065
5 85.1 29.5 28.2 1.95 0.8061 62.1483 48.369 16.83 3.18E +050.6069
6 85.1 29.5 28.1 1.94 0.8060 62.1481 27.581 12.73 2.41E +050.6078
Table 3-30: Double elbows in plane, sensor serial number 08261
Data
point
number
Temperature Pressure Viscos-
Density Differen
ity
°F °C psig bar cP lb/ft
-tial
pressure
3
in Water lbm/sec
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
1 68.4 20.2 37.5 2.59 0.9959 62.3035 241.008 37.48 5.75E +050.6063
2 68.4 20.2 37.5 2.59 0.9961 62.3035 238.773 37.35 5.73E +050.6070
3 68.3 20.2 36.6 2.52 0.9972 62.3042 207.099 34.82 5.34E +050.6076
4 68.4 20.2 36.6 2.52 0.9970 62.3041 173.629 31.84 4.88E +050.6069
5 68.4 20.2 36.6 2.52 0.9969 62.3040 155.267 30.18 4.63E +050.6083
6 68.4 20.2 36.6 2.52 0.9969 62.3040 154.624 30.12 4.62E +050.6083
7 68.4 20.2 36.6 2.52 0.9967 62.3039 130.075 27.63 4.24E +050.6085
8 68.4 20.2 36.6 2.52 0.9967 62.3039 130.759 27.63 4.24E +050.6068
9 68.4 20.2 36.6 2.52 0.9965 62.3037 101.582 24.40 3.74E +050.6080
10 68.4 20.2 36.6 2.52 0.9962 62.3037 77.884 21.35 3.28E +050.6076
Rosemount 405 and 1595 45
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Test facilities and flow tests Reference Manual
May 2022 00821-0100-4810
Table 3-30: Double elbows in plane, sensor serial number 08261 (continued)
Data
point
number
11 68.4 20.2 36.6 2.52 0.9961 62.3035 58.274 18.54 2.84E +050.6100
Temperature Pressure Viscos-
ity
°F °C psig bar cP lb/ft
Density Differen
-tial
pressure
3
in Water lbm/sec
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
SwRI flow lab
Model
Fluid
Sensor serial number
Beta ratio
Pipe size
Pipe inner dimension
Test date
Rosemount 405C
Natural gas
08261
0.40
2 in (50.8 mm)
2.066 in (52.48 mm)
August 21, 2002
Figure 3-14: Double elbows in plane test results in natural gas
Table 3-31: Natural gas straight run test, sensor serial number 08261
Data
point
number
1 74.6 23.7 188.7 13.01 0.5918 230.638 0.4877 4.78E +050.6034
46 Emerson.com/Rosemount
Temperature Pressure Density Differen-
tial
pressure
°F °C psig bar lb/ft
3
in water lbm/sec
Flow rate Pipe Rey-
nolds
number
Discharge
coefficient
Page 47
Reference Manual Test facilities and flow tests
00821-0100-4810 May 2022
Table 3-31: Natural gas straight run test, sensor serial number 08261 (continued)
Data
point
number
Temperature Pressure Density Differen-
tial
pressure
°F °C psig bar lb/ft
3
in water lbm/sec
Flow rate Pipe Rey-
nolds
number
Discharge
coefficient
2 74.4 23.6 188.6 13.00 0.5917 230.319 0.4874 4.78E +050.6035
3 74.4 23.5 188.5 12.99 0.5913 230.159 0.4871 4.78E +050.6035
4 74.8 23.8 189.1 13.04 0.5868 175.674 0.4252 4.17E +050.6036
5 74.8 23.8 189.0 13.03 0.5865 175.534 0.4249 4.16E +050.6035
6 74.7 23.7 188.8 13.02 0.5861 175.256 0.4247 4.16E +050.6038
7 76.4 24.7 189.8 13.09 0.5781 90.143 0.3035 2.97E +050.6031
8 76.4 24.7 189.7 13.08 0.5779 90.043 0.3033 2.97E +050.6033
9 76.4 24.7 189.7 13.08 0.5776 90.143 0.3032 2.96E +050.6028
10 75.7 24.3 190.2 13.12 0.5738 33.370 0.1835 1.80E +050.5996
11 75.8 24.3 190.2 13.11 0.5736 33.370 0.1834 1.79E +050.5995
12 76.0 24.4 190.2 13.11 0.5732 33.309 0.1833 1.79E +050.5999
13 77.3 25.2 190.5 13.14 0.5709 14.696 0.1219 1.19E +050.6013
14 77.6 25.3 190.4 13.13 0.5704 14.696 0.1218 1.19E +050.6013
15 77.8 25.5 190.4 13.13 0.5700 14.696 0.1218 1.19E +050.6012
Table 3-32: Natural gas, double elbows in plane, sensor serial number 08261
Data
point
number
1 77.9 25.5 188.8 13.02 0.5928 230.798 0.4873 4.76E +050.6021
2 77.6 25.4 188.7 13.01 0.5927 230.638 0.4870 4.75E +050.6020
Temperature Pressure Density Differen-
tial
pressure
°F °C psig bar lb/ft
3
in water lbm/sec
Flow rate Pipe Rey-
nolds
Number
Discharge
coefficient
Rosemount 405 and 1595 47
Page 48
Test facilities and flow tests Reference Manual
May 2022 00821-0100-4810
Table 3-32: Natural gas, double elbows in plane, sensor serial number 08261 (continued)
Data
point
number
3 77.5 25.3 188.6 13.00 0.5927 230.319 0.4868 4.75E +050.6022
4 77.3 25.2 189.6 13.07 0.5901 175.953 0.4264 4.16E +050.6030
5 77.2 25.1 189.5 13.07 0.5899 175.814 0.4262 4.16E +050.6030
6 77.1 25.1 189.4 13.06 0.5897 175.814 0.4260 4.16E +050.6028
7 77.4 25.2 190.2 13.12 0.5825 90.243 0.3045 2.97E +050.6025
8 77.6 25.4 190.2 13.12 0.5821 90.243 0.3044 2.97E +050.6025
9 77.5 25.3 190.2 13.11 0.5821 90.243 0.3043 2.96E +050.6023
10 78.5 25.9 190.4 13.13 0.5754 33.248 0.1836 1.79E +050.6004
11 78.6 25.9 190.4 13.13 0.5753 33.248 0.1836 1.79E +050.6003
Temperature Pressure Density Differen-
tial
pressure
°F °C psig bar lb/ft
3
in water lbm/sec
Flow rate Pipe Rey-
nolds
Number
Discharge
coefficient
12 78.7 26.0 190.4 13.12 0.5749 33.248 0.1835 1.79E +050.6002
13 79.4 26.4 190.3 13.12 0.5719 14.616 0.1218 1.19E +050.6019
14 79.6 26.4 190.2 13.11 0.5715 14.616 0.1217 1.18E +050.6019
15 79.8 26.6 190.1 13.11 0.5712 14.575 0.1217 1.18E +050.6026
Test results for sensor serial number 12402
Model
Fluid
Sensor serial number
Beta ratio
Pipe size
Pipe inner dimension
Test date
Rosemount 405C
Water
12402
0.60
2 in (50.8 mm) schedule 40
2.066 in (52.48 mm)
July 9, 2002
48 Emerson.com/Rosemount
Page 49
Reference Manual Test facilities and flow tests
00821-0100-4810 May 2022
Figure 3-15: Test results for sensor 12402
Table 3-33: Straight run test, sensor serial number 12402
Data
point
number
1 66.6 19.2 28.2 1.95 1.0215 62.3174 265.761 93.08 1.39E +050.6112
2 66.6 19.2 28.2 1.94 1.0218 62.3175 269.224 93.66 1.40E +050.6110
3 66.6 19.2 28.4 1.96 1.0217 62.3175 200.526 80.84 1.21E +050.6111
4 66.6 19.2 28.4 1.96 1.0214 62.3173 165.081 73.51 1.10E +050.6124
5 66.6 19.2 28.5 1.96 1.0210 62.3171 125.494 64.00 9.57E +050.6115
6 66.6 19.2 28.4 1.96 1.0210 62.3171 125.292 63.97 9.57E +050.6117
7 66.6 19.2 28.4 1.96 1.0208 62.3170 86.271 53.10 7.95E +050.6120
8 66.7 19.3 28.4 1.96 1.0197 62.3164 56.759 43.08 6.45E +050.6121
Temperature Pressure Viscos-
Density Differen
ity
°F °C psig bar cP lb/ft
-tial
pressure
3
in water USGPM
Flow
rate
Pipe
Reynolds
number
Discharge
coefficient
9 66.8 19.4 28.4 1.96 1.0178 62.3154 34.709 33.77 5.07E +050.6136
10 67.0 19.4 28.3 1.95 1.0159 62.3145 17.529 24.01 3.61E +050.6137
Rosemount 405 and 1595 49
Page 50
Test facilities and flow tests Reference Manual
May 2022 00821-0100-4810
Table 3-34: Double elbows in plane, sensor serial number 12402
Data
point
number
1 68.0 20.0 35.1 2.42 1.0014 62.3066 254.411 91.24 1.39E +050.6123
2 68.0 20.0 35.2 2.42 1.0014 62.3066 254.177 91.21 1.39E +050.6123
3 68.1 20.1 36.0 2.48 1.0010 62.3063 207.469 82.38 1.26E +050.6121
4 68.1 20.1 36.5 2.52 1.0006 62.3061 161.025 72.62 1.11E +050.6125
5 68.1 20.1 36.7 2.53 1.0004 62.3060 119.624 62.63 9.56E +050.6129
6 68.1 20.1 36.7 2.53 1.0004 62.3060 119.516 62.57 9.55E +050.6126
7 68.1 20.1 36.6 2.52 1.0003 62.3059 85.703 53.01 8.09E +050.6129
8 68.1 20.1 36.7 2.53 1.0002 62.3059 57.811 43.59 6.65E +050.6136
9 68.1 20.1 36.7 2.53 1.0001 62.3057 34.682 33.79 5.16E +050.6141
Temperature Pressure Viscos-
ity
°F °C psig bar cP lb/ft
Density Differen
-tial
pressure
3
in Water USGPM
Flow
rate
Pipe
Reynolds
number
Dischar
ge coefficient
10 68.1 20.1 36.8 2.53 1.9999 62.3057 18.440 24.68 3.77E +050.6150
11 68.2 20.2 36.8 2.54 1.9998 62.3057 9.030 17.33 2.65E +050.6173
3.8 Double elbows out of plane
Testing sensor 08261 in water
Test laboratory
Model
Fluid
Sensor serial number
Beta ratio
Pipe size
Pipe inner dimension
Test date
Rosemount Boulder, Colorado flow lab
Rosemount 405C
Water
08261
0.40
2 in (51 mm) schedule 40
2.066 in (52.48 mm)
June 5, 2003
50 Emerson.com/Rosemount
Page 51
Reference Manual Test facilities and flow tests
00821-0100-4810 May 2022
Figure 3-16: Test results for sensor 08261 in water
Table 3-35: Straight run test, sensor serial number 08261
Data
point
number
1 85.0 29.4 28.3 1.95 0.8074 62.1497 246.390 37.87 7.15E +040.6049
2 85.1 29.5 28.3 1.95 0.8062 62.1484 246.087 37.84 7.15E +040.6048
3 85.1 29.5 28.3 1.95 0.8057 62.1479 173.118 31.76 6.01E +040.6052
4 85.2 29.6 28.2 1.94 0.8050 62.1470 105.641 24.83 4.70E +040.6056
5 85.1 29.5 28.3 1.95 0.8059 62.1480 61.992 19.05 3.60E +040.6066
6 85.1 29.5 28.2 1.94 0.8062 62.1484 62.056 19.06 3.60E +040.6065
7 85.1 29.5 28.2 1.94 0.8061 62.1483 48.369 16.83 3.18E +040.6069
Temperature Pressure Viscos-
Density Differen
ity
°F °C psig bar cP lb/ft
-tial
pressure
3
in Water USGPM
Flow
rate
Pipe
Reynold
s
Number
Dischar
ge
coefficie
nt
Table 3-36: Double elbows out of plane, sensor serial number 08261 in water
Data
point
number
Temperature Pressure Viscos-
Density Differen
ity
°F °C psig bar cP lb/ft
-tial
pressure
3
in Water USGPM
Flow
rate
Pipe
Reynold
s
number
Dischar
ge
coefficie
nt
1 68.0 20.0 37.0 2.55 1.0013 62.3065 253.472 38.42 5.86E +040.6059
Rosemount 405 and 1595 51
Page 52
Test facilities and flow tests Reference Manual
May 2022 00821-0100-4810
Table 3-36: Double elbows out of plane, sensor serial number 08261 in water (continued)
Data
point
number
2 68.1 21.1 37.0 2.55 1.0005 62.3060 253.453 38.42 5.87E +040.6060
3 68.2 21.1 36.1 2.49 0.9990 62.3052 217.241 35.63 5.45E +040.6070
4 68.2 21.1 36.2 2.49 0.9989 62.3051 192.623 33.59 5.14E +040.6077
5 68.2 21.1 36.2 2.49 0.9992 62.3052 174.461 31.98 4.89E +040.6079
6 68.2 21.1 36.2 2.49 0.9992 62.3053 174.474 32.01 4.89E +040.6085
7 68.2 21.1 36.2 2.49 0.9994 62.3054 153.099 29.99 4.58E +040.6086
8 68.2 21.1 36.2 2.49 0.9995 62.3055 130.873 27.74 4.24E +040.6089
9 68.1 21.1 36.2 2.49 0.9999 62.3057 95.054 23.64 3.61E +040.6088
10 68.1 21.1 36.2 2.49 1.0000 62.3057 87.212 22.65 3.46E +040.6092
Temperature Pressure Viscos-
ity
°F °C psig bar cP lb/ft
Density Differen
-tial
pressure
3
in Water USGPM
Flow
rate
Pipe
Reynold
s
number
Dischar
ge
coefficie
nt
Test results for sensor 08261 in natural gas
Test laboratory
Model
Fluid
Sensor serial number
Beta ratio
Pipe size
Pipe inner dimension
Test date
SwRI flow lab
Rosemount 405C
Natural gas
08261
0.40
2 in (51 mm) schedule 40
2.066 in (52.48 mm)
August 22, 2003
52 Emerson.com/Rosemount
Page 53
Reference Manual Test facilities and flow tests
00821-0100-4810 May 2022
Figure 3-17: Natural gas straight run test results, sensor serial number 08261
Table 3-37: Natural gas straight run test, sensor serial number 08261
Data
point
number
1 74.6 23.7 188.7 13.01 0.5918 230.638 0.4877 4.78E +050.6034
2 74.4 23.6 188.6 13.00 0.5917 230.319 0.4874 4.78E +050.6035
3 74.4 23.5 188.5 12.99 0.5913 230.159 0.4871 4.78E +050.6035
4 74.8 23.8 189.1 13.04 0.5868 175.674 0.4252 4.17E +050.6036
5 74.8 23.8 189.0 13.03 0.5865 175.534 0.4249 4.16E +050.6035
6 74.7 23.7 188.8 13.02 0.5861 175.256 0.4247 4.16E +050.6038
7 76.4 24.7 189.8 13.09 0.5781 90.143 0.3035 2.97E +050.6031
8 76.4 24.7 189.7 13.08 0.5779 90.043 0.3033 2.97E +050.6033
Temperature Pressure Density Differen-
tial
pressure
°F °C psig bar lb/ft
3
in water USGPM
Flow rate Pipe
Reynolds
number
Discharg
e
coefficien
t
9 76.4 24.7 189.7 13.08 0.5776 90.143 0.3032 2.96E +050.6028
10 75.7 24.3 190.2 13.12 0.5738 33.370 0.1835 1.80E +050.5996
Rosemount 405 and 1595 53
Page 54
Test facilities and flow tests Reference Manual
May 2022 00821-0100-4810
Table 3-37: Natural gas straight run test, sensor serial number 08261 (continued)
Data
point
number
Temperature Pressure Density Differen-
tial
pressure
°F °C psig bar lb/ft
3
in water USGPM
Flow rate Pipe
Reynolds
number
Discharg
e
coefficien
t
11 75.8 24.3 190.2 13.11 0.5736 33.370 0.1834 1.79E +050.5995
12 76.0 24.4 190.2 13.11 0.5732 33.309 0.1833 1.79E +050.5999
13 77.3 25.2 190.5 13.14 0.5709 14.696 0.1219 1.19E +050.6013
14 77.6 25.3 190.5 13.13 0.5704 14.696 0.1218 1.19E +050.6013
15 77.8 25.5 190.4 13.13 0.5700 14.696 0.1218 1.19E +050.6012
Table 3-38: Natural gas, double elbows out of plane, sensor serial number 08261
Data
point
number
1 74.7 23.7 188.7 13.01 0.5980 231.119 0.4894 4.80E +050.6017
Temperature Pressure Density Differen-
tial
pressure
°F °C psig bar lb/ft
3
in water USGPM
Flow rate Pipe
Reynolds
number
Discharg
e
coefficien
t
2 74.5 23.6 188.5 13.00 0.5978 231.119 0.4891 4.80E +050.6015
3 74.4 23.5 188.4 12.99 0.5976 230.958 0.4889 4.80E +050.6015
4 74.1 23.4 189.0 13.03 0.5934 175.534 0.4271 4.19E +050.6031
5 74.0 23.3 188.9 13.02 0.5933 175.534 0.4270 4.19E +050.6029
6 74.0 23.3 188.8 13.02 0.5932 175.395 0.4268 4.19E +050.6031
7 74.0 23.3 190.3 13.12 0.5885 90.543 0.3065 3.01E +050.6023
8 74.1 23.4 190.3 13.12 0.5882 90.443 0.3064 3.01E +050.6026
9 74.2 23.4 190.2 13.11 0.5881 90.443 0.3063 3.01E +050.6026
10 74.7 23.7 190.4 13.13 0.5818 33.370 0.1848 1.81E +050.6000
11 74.8 23.8 190.5 13.13 0.5817 33.370 0.1848 1.81E +050.6000
54 Emerson.com/Rosemount
Page 55
Reference Manual Test facilities and flow tests
00821-0100-4810 May 2022
Table 3-38: Natural gas, double elbows out of plane, sensor serial number 08261 (continued)
Data
point
number
12 74.9 23.8 190.4 13.13 0.5816 33.370 0.1848 1.81E +050.5999
13 75.1 23.9 190.2 13.11 0.5785 14.696 0.1226 1.20E +050.6009
14 75.3 24.1 190.2 13.11 0.5781 14.656 0.1226 1.20E +050.6017
15 75.6 24.2 190.1 13.11 0.5777 14.696 0.1225 1.20E +050.6009
Temperature Pressure Density Differen-
tial
pressure
°F °C psig bar lb/ft
3
in water USGPM
Flow rate Pipe
Reynolds
number
Discharg
e
coefficien
t
Testing sensor 12402 in water
Test laboratory
Model
Sensor serial number
Beta ratio
Pipe size
Pipe inner dimension
Rosemount Boulder, Colorado Flow lab
Rosemount 405C
12402
0.60
2 in (51 mm) schedule 40
2.066 in (52.48 mm)
Test date
June 5, 2003
Figure 3-18: Test results for sensor 12402 in water
Rosemount 405 and 1595 55
Page 56
Test facilities and flow tests Reference Manual
May 2022 00821-0100-4810
Table 3-39: Water, straight run test, sensor serial number 12402
Data
point
number
1 66.6 19.2 28.4 1.96 1.0217 62.3175 200.526 80.84 1.21E +050.6227
2 66.6 19.2 28.4 1.96 1.0214 62.3173 165.081 73.51 1.10E +050.6241
3 66.6 19.2 28.5 1.96 1.0210 62.3171 125.494 64.00 9.56E +050.6231
4 66.6 19.2 28.4 1.96 1.0210 62.3171 125.292 63.97 9.56E +050.6233
5 66.6 19.2 28.4 1.96 1.0208 62.3170 86.271 53.10 7.94E +050.6236
6 66.7 19.3 28.4 1.96 1.0197 62.3164 56.759 43.08 6.44E +050.6237
7 66.8 19.4 28.4 1.96 1.0178 62.3154 34.709 33.77 5.06E +050.6253
8 67.0 19.4 28.3 1.95 1.0159 62.3145 17.529 24.01 3.60E +050.6254
Temperature Pressure Viscos-
ity
°F °C psig bar cP lb/ft
Density Differen
-tial
pressure
3
in Water USGPM
Flow
rate
Pipe
Reynold
s
number
Dischar
ge
coefficie
nt
Table 3-40: Rosemount Boulder, Colorado Flow Lab, Water. Double Elbows Out of Plane, Sensor Serial
Number 12402
Data
point
number
1 68.2 20.1 35.5 2.45 0.9994 62.3054 215.473 83.79 1.28E +050.6225
2 68.2 20.1 35.5 2.45 0.9995 62.3055 172.473 74.98 1.14E +050.6228
3 68.2 20.1 35.6 2.45 0.9996 62.3056 133.280 66.01 1.01E +050.6236
4 68.2 20.1 35.6 2.45 0.9997 62.3056 132.542 65.77 1.00E +050.6231
5 68.2 20.1 35.7 2.46 0.9998 62.3056 100.698 57.35 8.75E +050.6234
6 68.1 20.1 35.7 2.46 0.9999 62.3057 71.827 48.45 7.39E +050.6235
7 68.1 20.1 35.8 2.47 1.0000 62.3057 47.333 39.31 6.00E +050.6232
8 68.1 20.1 35.8 2.47 1.0001 62.3058 28.913 30.84 4.70E +050.6255
Temperature Pressure ViscosityDensity Differen
tial
pressure
°F °C psig bar cP lb/ft
3
in Water USGPM
Flow
rate
Pipe
Reynold
s
number
Dischar
ge
coefficie
nt
56 Emerson.com/Rosemount
Page 57
Reference Manual Test facilities and flow tests
00821-0100-4810 May 2022
3.9 Swirl generator
Testing sensor 08261 in water
Test laboratory
Model
Fluid
Sensor serial number
Beta ratio
Pipe size
Pipe inner dimension
Rosemount Boulder, Colorado flow lab
Rosemount 405C
Water
08261
0.40
2 in (51 mm) schedule 40
2.066 in (52.48 mm)
Figure 3-19: Test results for sensor 08261 in water
Table 3-41: Water straight run test, sensor serial number 08261
Data
point
number
1 85.0 29.4 28.3 1.95 0.8074 62.1497 246.390 37.87 7.15E +040.6049
2 85.1 29.5 28.3 1.95 0.8062 62.1484 246.087 37.84 7.15E +040.6048
3 85.1 29.5 28.3 1.95 0.8057 62.1479 173.118 31.76 6.01E +040.6052
4 85.2 29.6 28.2 1.94 0.8050 62.1470 105.641 24.83 4.70E +040.6056
Rosemount 405 and 1595 57
Temperature Pressure Viscos-
ity
°F °C psig bar cP lb/ft
Density Differen
-tial
pressure
3
in Water USGPM
Flow
rate
Pipe
Reynold
s
Number
Dischar
ge
coefficie
nt
Page 58
Test facilities and flow tests Reference Manual
May 2022 00821-0100-4810
Table 3-41: Water straight run test, sensor serial number 08261 (continued)
Data
point
number
Temperature Pressure Viscos-
Density Differen
ity
°F °C psig bar cP lb/ft
-tial
pressure
3
in Water USGPM
Flow
rate
Pipe
Reynold
s
Number
Dischar
ge
coefficie
nt
5 85.1 29.5 28.3 1.95 0.8059 62.1480 61.992 19.05 3.60E +040.6066
6 85.1 29.5 28.2 1.95 0.8062 62.1484 62.056 19.06 3.60E +040.6065
7 85.1 29.5 28.2 1.95 0.8061 62.1483 48.369 16.83 3.18E +040.6069
8 85.1 29.5 28.1 1.94 0.8060 62.1481 27.581 12.73 2.41E +040.6078
9 85.2 29.6 28.2 1.94 0.8054 62.1475 16.431 9.85 1.86E +040.6095
10 85.2 29.6 28.1 1.94 0.8050 62.1471 6.005 5.98 1.13E +040.6122
Table 3-42: Test results for sensor 08261 in water after swirl generator
Data
point
number
Temperature Pressure Viscos-
Density Differen
ity
°F °C psig bar cP lb/ft
-tial
pressure
3
in Water USGPM
Flow
rate
Pipe
Reynold
s
Number
Dischar
ge
coefficie
nt
1 67.3 19.6 28.4 1.96 1.0121 62.3124 246.487 37.88 5.72E +040.6060
2 67.2 19.5 28.4 1.96 1.0133 62.3130 246.808 37.88 5.71E +040.6055
3 67.0 19.4 28.3 1.95 1.0162 62.3146 168.363 31.28 4.70E +040.6055
4 67.0 19.5 28.3 1.95 1.0154 62.3141 126.037 27.06 4.07E +040.6054
5 67.0 19.4 28.3 1.95 1.0159 62.3144 61.311 18.91 2.85E +040.6066
6 67.0 19.4 28.3 1.95 1.0161 62.3146 61.210 18.90 2.84E +040.6066
7 67.1 19.5 28.3 1.95 1.0140 62.3135 49.420 16.98 2.56E +040.6066
8 67.3 19.6 28.2 1.94 1.0114 62.3120 28.640 12.94 1.96E +040.6072
9 67.5 19.7 28.2 1.94 1.0083 62.3105 15.748 9.62 1.46E +040.6085
10 67.8 19.9 28.1 1.94 1.0048 62.3086 5.825 5.88 8.93E +040.6113
58 Emerson.com/Rosemount
Page 59
0.5900
0.6000
0.6100
0.6200
0.6300
1.E+04 1.E+05 1.E+06
Pipe Reynolds Num ber
Cc
Straight Run Test
2D After Sw irl Generator
Calculated Cd
+/- 0.50%
Reference Manual Test facilities and flow tests
00821-0100-4810 May 2022
Testing sensor 08261 in air
Test laboratory
Model
Fluid
Sensor serial number
Beta ratio
Pipe size
Pipe inner dimension
Test date
CEESI, Colorado
Rosemount 405C
Air
08261
0.40
2 in (51 mm) schedule 40
2.066 in (52.48 mm)
February 27, 2002
Figure 3-20: Test results for sensor 08261 in air
Table 3-43: Air straight run test, sensor serial number 08261
Data
point
number
1 65.8 18.8 152.5 10.52 0.0181 0.7863 241.75 0.5728 3.50E
2 62.9 17.2 150.2 10.35 0.0180 0.7784 248.50 0.5773 3.54E
3 61.1 16.2 150.2 10.35 0.0180 0.7812 245.20 0.5747 3.54E
4 61.0 16.1 150.2 10.35 0.0179 0.7816 245.14 0.5747 3.54E
5 60.8 16.0 150.2 10.35 0.0179 0.7817 245.07 0.5747 3.54E
Rosemount 405 and 1595 59
Temperature Pressure Viscos-
ity
°F °C psig bar cP lb/ft
Density Differen
-tial
pressure
3
in water USGPM
Flow
rate
Pipe
Reynold
s
number
+05
+05
+05
+05
+05
Dischar
ge
coefficie
nt
0.6119
0.6117
0.6117
0.6118
0.6118
Page 60
Test facilities and flow tests Reference Manual
May 2022 00821-0100-4810
Table 3-43: Air straight run test, sensor serial number 08261 (continued)
Data
point
number
6 62.9 17.2 150.2 10.35 0.0180 0.7784 148.03 0.4489 2.75E
7 63.1 17.3 150.2 10.35 0.0180 0.7782 148.03 0.4489 2.75E
8 63.1 17.3 150.2 10.36 0.0180 0.7783 148.02 0.4489 2.75E
9 65.1 18.4 150.2 10.36 0.0181 0.7752 91.59 0.3539 2.16E
10 65.4 18.6 150.1 10.35 0.0181 0.7745 91.62 0.3537 2.16E
11 65.5 18.6 150.2 10.35 0.0181 0.7746 91.56 0.3537 2.16E
12 68.5 20.3 150.2 10.36 0.0182 0.7702 37.78 0.2277 1.39E
13 68.8 20.5 150.2 10.36 0.0182 0.7697 37.73 0.2275 1.38E
14 69.0 20.6 150.2 10.36 0.0182 0.7695 37.70 0.2274 1.38E
Temperature Pressure Viscos-
ity
°F °C psig bar cP lb/ft
Density Differen
-tial
pressure
3
in water USGPM
Flow
rate
Pipe
Reynold
s
number
+05
+05
+05
+05
+05
+05
+05
+05
+05
Dischar
ge
coefficie
nt
0.6124
0.6125
0.6125
0.6129
0.6128
0.6129
0.6140
0.6142
0.6142
15 71.8 22.1 150.2 10.36 0.0182 0.7655 11.42 0.1254 7.59E
+04
16 71.9 22.2 150.3 10.36 0.0182 0.7654 11.42 0.1254 7.59E
+04
17 72.1 22.3 150.2 10.36 0.0182 0.7649 11.41 0.1252 7.58E
+04
18 73.2 22.9 150.1 10.35 0.0183 0.7627 10.67 0.1207 7.29E
+04
19 74.7 23.7 150.2 10.36 0.0183 0.7610 6.32 0.0932 5.62E
+04
20 74.7 23.7 150.2 10.35 0.0183 0.7609 6.31 0.0932 5.62E
+04
21 74.7 23.7 150.2 10.35 0.0183 0.7607 6.32 0.0932 5.62E
+04
22 74.6 23.7 150.2 10.36 0.0183 0.7613 4.86 0.0815 4.92E
+04
23 74.8 23.8 150.2 10.36 0.0183 0.7610 3.71 0.0713 4.30E
+04
24 74.9 23.8 150.2 10.36 0.0183 0.7608 3.71 0.0714 4.30E
+04
0.6158
0.6158
0.6156
0.6140
0.6169
0.6171
0.6169
0.6157
0.6165
0.6166
60 Emerson.com/Rosemount
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Table 3-43: Air straight run test, sensor serial number 08261 (continued)
Data
point
number
Temperature Pressure Viscos-
Density Differen
ity
°F °C psig bar cP lb/ft
-tial
pressure
3
in water USGPM
Flow
rate
Pipe
Reynold
s
number
25 75.0 23.9 150.2 10.36 0.0183 0.7605 3.70 0.0714 4.30E
+04
Table 3-44: Air after swirl generator, sensor serial number 08261
Data
point
number
1 60.2 15.7 150.0 10.34 0.0179 0.7836 246.82 0.5775 3.56E
2 60.0 15.6 150.1 10.35 0.0179 0.7840 246.70 0.5776 3.56E
3 59.8 15.5 150.1 10.35 0.0179 0.7843 246.73 0.5777 3.57E
4 61.2 16.2 150.1 10.35 0.0180 0.7821 154.14 0.4588 2.83E
5 61.2 16.2 150.1 10.35 0.0180 0.7824 154.13 0.4588 2.83E
Temperature Pressure Viscos-
Density Differen
ity
°F °C psig bar cP lb/ft
-tial
pressure
3
in water USGPM
Flow
rate
Pipe
Reynold
s
Number
+05
+05
+05
+05
+05
Dischar
ge
coefficie
nt
0.6171
Dischar
ge
coefficie
nt
0.6117
0.6118
0.6117
0.6120
0.6120
6 61.1 16.2 150.1 10.35 0.0180 0.7825 154.15 0.4590 2.83E
+05
7 62.6 17.0 150.1 10.35 0.0180 0.7803 88.98 0.3498 2.15E
+05
8 62.5 17.0 150.1 10.35 0.0180 0.7803 89.00 0.3498 2.15E
+05
9 62.4 16.9 150.1 10.35 0.0180 0.7802 88.94 0.3498 2.15E
+05
10 64.4 18.0 150.1 10.35 0.0180 0.7774 38.32 0.2302 1.41E
+05
11 64.7 18.2 150.1 10.35 0.0180 0.7769 38.31 0.2301 1.41E
+05
12 64.9 18.3 150.1 10.35 0.0181 0.7765 38.27 0.2299 1.41E
+05
13 67.9 20.0 150.1 10.35 0.0181 0.7723 11.09 0.1237 7.55E
+04
14 68.1 20.1 150.2 10.35 0.0181 0.7720 11.08 0.1236 7.54E
+04
15 68.2 20.1 150.1 10.35 0.0181 0.7717 11.09 0.1236 7.54E
+04
0.6121
0.6124
0.6123
0.6126
0.6134
0.6134
0.6134
0.6137
0.6136
0.6136
Rosemount 405 and 1595 61
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May 2022 00821-0100-4810
Table 3-44: Air after swirl generator, sensor serial number 08261 (continued)
Data
point
number
16 70.0 21.1 150.2 10.36 0.0182 0.7696 9.45 0.1140 6.93E
17 70.4 21.4 150.0 10.34 0.0182 0.7677 5.98 0.0908 5.52E
18 70.5 21.4 150.1 10.35 0.0182 0.7680 5.98 0.0909 5.52E
19 70.6 21.5 150.1 10.35 0.0182 0.7680 5.98 0.0909 5.52E
20 70.6 21.5 150.0 10.34 0.0182 0.7676 5.97 0.0908 5.52E
21 71.0 21.7 150.1 10.35 0.0182 0.7675 3.61 0.0705 4.28E
22 71.1 21.7 150.1 10.35 0.0182 0.7675 3.61 0.0705 4.28E
23 71.1 21.7 150.1 10.35 0.0182 0.7673 3.61 0.0705 4.28E
Temperature Pressure Viscos-
ity
°F °C psig bar cP lb/ft
Density Differen
-tial
pressure
3
in water USGPM
Flow
rate
Pipe
Reynold
s
Number
+04
+04
+04
+04
+04
+04
+04
+04
Dischar
ge
coefficie
nt
0.6137
0.6155
0.6153
0.6155
0.6155
0.6146
0.6147
0.6146
Testing sensor 08261 in natural gas
Test laboratory
Model
Fluid
Sensor serial number
Beta ratio
Pipe size
Pipe inner dimension
Test date
SwRI flow lab
Rosemount 405C
Natural gas
08261
0.40
2 in (51 mm) schedule 40
2.066 in (52.48 mm)
August 20, 2002
62 Emerson.com/Rosemount
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Figure 3-21: Test results for sensor 08261 in natural gas
Table 3-45: Natural gas straight run test, sensor serial number 08261
Data
point
number
1 74.6 23.7 188.7 13.01 0.5918 230.638 0.4877 4.78E +040.6034
2 74.4 23.6 188.6 13.00 0.5917 230.319 0.4874 4.78E +040.6035
3 74.4 23.5 188.5 12.99 0.5913 230.159 0.4871 4.78E +040.6035
4 74.8 23.8 189.1 13.04 0.5868 175.674 0.4252 4.17E +040.6036
5 74.8 23.8 189.0 13.03 0.5865 175.534 0.4249 4.16E +040.3035
6 74.7 23.7 188.8 13.02 0.5861 175.256 0.4247 4.16E +040.6038
7 76.4 24.7 189.8 13.09 0.5781 90.143 0.3035 2.97E +040.6031
8 76.4 24.7 189.7 13.08 0.5779 90.043 0.3033 2.97E +040.6033
Temperature Pressure Density Differen-
tial
pressure
°F °C psig bar lb/ft
3
in Water USGPM
Flow rate Pipe
Reynolds
number
Discharg
e
coefficien
t
9 76.4 24.7 189.7 13.08 0.5776 90.143 0.3032 2.96E +040.6028
10 75.7 24.3 190.2 13.12 0.5738 33.370 0.1835 1.80E +040.5996
Rosemount 405 and 1595 63
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May 2022 00821-0100-4810
Table 3-45: Natural gas straight run test, sensor serial number 08261 (continued)
Data
point
number
Temperature Pressure Density Differen-
tial
pressure
°F °C psig bar lb/ft
3
in Water USGPM
Flow rate Pipe
Reynolds
number
Discharg
e
coefficien
t
11 75.8 24.3 190.2 13.11 0.5736 33.370 0.1834 1.79E +040.5995
12 76.0 24.4 190.1 13.11 0.5732 33.309 0.1833 1.79E +040.5999
13 77.3 25.2 190.5 13.14 0.5709 14.696 0.1219 1.19E +040.6013
14 77.6 25.3 190.5 13.13 0.5704 14.696 0.1218 1.19E +040.6013
15 77.8 25.5 190.4 13.13 0.5700 14.696 0.1218 1.19E +040.6012
Table 3-46: Natural gas after swirl generator, sensor serial number 08261
Data
point
number
1 85.0 29.4 188.5 12.99 0.5828 228.882 0.4818 4.65E +040.6028
Temperature Pressure Density Differen-
tial
pressure
°F °C psig bar lb/ft
3
in water USGPM
Flow rate Pipe
Reynolds
number
Discharg
e
coefficien
t
2 84.5 29.2 188.3 12.98 0.5829 228.723 0.4816 4.65E +040.6028
3 84.1 28.9 188.2 12.97 0.5829 228.405 0.4814 4.66E +040.6029
4 83.2 28.4 189.3 13.05 0.5814 174.698 0.4220 4.09E +040.6033
5 83.0 28.3 189.2 13.04 0.5814 174.559 0.4219 4.09E +040.6034
6 82.8 28.2 189.1 13.04 0.5812 174.420 0.4217 4.09E +040.6034
7 82.7 28.2 189.8 13.08 0.5742 89.444 0.3014 2.92E +040.6032
8 83.0 28.3 189.7 13.08 0.5736 89.444 0.3013 2.92E +040.6033
9 83.1 28.4 189.7 13.08 0.5737 89.444 0.3013 2.92E +040.6033
10 84.2 29.0 190.4 13.12 0.5682 33.006 0.1821 1.76E +040.6013
11 84.3 29.1 190.3 13.12 0.5679 33.006 0.1820 1.76E +040.6012
64 Emerson.com/Rosemount
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Table 3-46: Natural gas after swirl generator, sensor serial number 08261 (continued)
Data
point
number
12 84.5 29.2 190.2 13.12 0.5675 33.006 0.1820 1.76E +040.6012
13 84.8 29.4 190.3 13.12 0.5652 14.535 0.1209 1.17E +040.6026
14 85.1 29.5 190.2 13.11 0.5648 14.535 0.1208 1.17E +040.6026
15 85.2 29.6 190.1 13.11 0.5643 14.535 0.1208 1.17E +040.6024
Temperature Pressure Density Differen-
tial
pressure
°F °C psig bar lb/ft
3
in water USGPM
Flow rate Pipe
Reynolds
number
Discharg
e
coefficien
t
Testing sensor serial number 04D407574 in water
Test laboratory
Model
Fluid
Sensor serial number
Beta ratio
Pipe size
Daniel Flow Products, Inc. flow lab
Rosemount 405C
Water
04D407574
0.40
4 in (102 mm) schedule 40
Pipe inner dimension
Test date
4.026 in (102.26 mm)
January 23, 2004
Figure 3-22: Test results for sensor 04D407574 in water
Note
0.75% spec. for 20 to 30 degrees of swirl angle.
Rosemount 405 and 1595 65
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May 2022 00821-0100-4810
Table 3-47: Water baseline test, sensor serial number 04D407574
Data
point
number
1 67.8 19.9 80.4 5.54 0.0101 62.3176 85.511 38.87 2.27E
2 67.8 19.9 79.8 5.50 0.0100 62.3170 85.291 38.81 2.27E
3 68.3 20.2 80.1 5.52 0.0100 62.3138 53.319 30.74 1.81E
4 68.8 20.4 80.1 5.52 0.0099 62.3102 28.605 22.56 1.33E
5 69.0 20.5 80.2 5.53 0.0099 62.3088 16.386 17.10 1.01E
6 78.2 25.7 80.4 5.55 0.0088 62.2327 8.6850 12.44 8.31E
(1) Inches of Hg under water
Temperature Pressure Viscos-
ity
°F °C psig bar absolute lb/ft
Density Differen
3
-tial
pressure
(1)ft3
in Hg
Flow
rate
/min
Pipe
Reynold
s
number
+05
+05
+05
+05
+05
+04
Table 3-48: Water, high swirl at 30 degrees, sensor serial number 04D407574
Data
point
number
Temperature Pressure Viscos-
ity
°F °C psig bar absolute lb/ft
Density Differen
3
-tial
pressure
(1)ft3
in Hg
Flow
rate
/min
Pipe
Reynold
s
Number
Dischar
ge
coefficie
nt
0.5963
0.5962
0.5973
0.5984
0.5992
0.5986
Dischar
ge
coefficie
nt
1 67.6 19.8 80.1 5.52 0.0101 62.3188 85.281 38.71 2.25E +050.5946
2 67.5 19.7 80.1 5.52 0.0101 62.3197 85.480 38.75 2.25E +050.5945
3 69.1 20.6 79.9 5.51 0.0099 62.3076 53.161 30.60 1.82E +050.5954
4 69.7 20.9 79.8 5.50 0.0098 62.3034 28.784 22.53 1.35E +050.5955
5 68.3 20.2 80.1 5.52 0.0100 62.3135 16.497 17.06 1.00E +050.5959
6 68.5 20.3 80.1 5.52 0.0099 62.3121 8.3600 12.14 7.15E +040.5954
(1) Inches of Hg under water
Testing sensor AT24261 in water
Test laboratory
Model
Fluid
Rosemount Boulder, Colorado flow lab
Rosemount 1595
Water
66 Emerson.com/Rosemount
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Sensor serial number`
Beta ratio
Pipe size
Pipe inner dimension
Test date
AT24261
0.40
6 in (152 mm) schedule 40
6.065 in (154.05 mm)
June 25, 2003
Figure 3-23: Test results for sensor AT24261 in water
Table 3-49: Water straight run test, sensor serial number AT24261
Data
point
number
1 67.9 19.9 37.0 2.55 1.0033 62.3076 242.929 314.82 1.63E +040.5951
2 67.9 19.9 37.0 2.55 1.0032 62.3076 242.995 315.07 1.63E +040.5955
3 67.9 19.9 37.2 2.57 1.0029 62.3073 184.667 274.84 1.43E +040.5958
4 68.0 20.0 37.6 2.59 1.0025 62.3071 136.368 236.09 1.23E +040.5956
5 68.0 20.0 37.9 2.62 1.0019 62.3068 94.751 196.82 1.02E +040.5957
6 68.0 20.0 37.9 2.62 1.0018 62.3067 94.573 196.88 1.02E +040.5964
7 67.8 19.9 35.5 2.45 1.0046 62.3083 60.441 157.43 8.16E +040.5966
Temperature Pressure Viscos-
ity
°F °C psig bar cP lb/ft
Density Differen
-tial
pressure
3
in water USGPM
Flow
rate
Pipe
Reynold
s
number
Dischar
ge
coefficie
nt
Rosemount 405 and 1595 67
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May 2022 00821-0100-4810
Table 3-49: Water straight run test, sensor serial number AT24261 (continued)
Data
point
number
8 67.8 19.9 35.9 2.47 1.0046 62.3083 34.000 118.12 6.12E +040.5968
9 67.8 19.9 36.5 2.52 1.0043 62.3081 15.167 78.98 4.09E +040.5975
Temperature Pressure Viscos-
ity
°F °C psig bar cP lb/ft
Density Differen
-tial
pressure
3
in water USGPM
Flow
rate
Pipe
Reynold
s
number
Dischar
ge
coefficie
nt
Table 3-50: Water after swirl generator, sensor serial number AT24261
Data
point
number
1 67.2 19.9 37.0 2.55 1.0122 62.3125 242.519 314.69 1.62E +050.5954
2 67.3 19.9 37.0 2.55 1.0116 62.3121 242.436 314.72 1.62E +050.5955
3 67.4 19.7 37.2 2.57 1.0095 62.3110 185.200 275.12 1.42E +050.5956
4 67.6 19.8 37.7 2.60 1.0072 62.3097 136.328 235.99 1.22E +050.5955
Temperature Pressure Viscos-
ity
°F °C psig bar cP lb/ft
Density Differen
-tial
pressure
3
in water USGPM
Flow
rate
Pipe
Reynold
s
number
Dischar
ge
coefficie
nt
5 67.8 19.9 38.0 2.62 1.0052 62.3087 94.236 196.36 1.02E +050.5960
6 67.8 19.9 38.0 2.62 1.0045 62.3082 94.252 196.50 1.02E +050.5963
7 67.8 19.9 36.2 2.49 1.0048 62.3084 60.524 157.40 8.15E +040.5961
8 67.9 20.0 36.4 2.51 1.0030 62.3074 34.133 118.32 6.14E +040.5967
9 68.0 20.0 36.1 2.49 1.0016 62.3066 15.357 79.49 4.13E +040.5976
3.10 8 x 6-in reduction
Testing sensor A24261 in water
Test laboratory
Model
Fluid
Sensor serial number
Rosemount Boulder, Colorado flow lab
Rosemount 1595
Water
A24261
68 Emerson.com/Rosemount
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Beta ratio
Pipe size
Pipe inner dimension
Test date
0.40
6 in (152 mm) schedule 40
6.065 in (154.05 mm)
July 8, 2003
Figure 3-24: Test results for sensor A24261 in water
Table 3-51: Water straight run test, sensor serial number A24261
Data
point
number
1 68.1 20.1 37.1 2.56 1.0006 62.3061 252.276 323.31 1.68E +040.5997
2 68.1 20.1 37.1 2.56 1.0007 62.3061 252.559 323.79 1.68E +040.6003
3 68.1 20.1 37.4 2.58 1.0002 62.3059 182.830 275.19 1.43E +040.5996
4 68.2 20.1 37.7 2.60 1.9997 62.3056 135.598 237.46 1.24E +040.6008
5 68.2 20.1 37.7 2.60 1.9996 62.3055 135.561 237.11 1.23E +040.6000
6 68.2 20.1 37.9 2.62 1.9992 62.3053 94.516 198.09 1.03E +040.6003
7 68.0 20.0 35.8 2.47 1.0018 62.3067 60.437 158.64 8.24E +040.6012
8 68.0 20.0 36.1 2.49 1.0017 62.3067 33.918 118.86 6.18E +040.6013
Temperature Pressure Viscos-
ity
°F °C psig bar cP lb/ft
Density Differen
-tial
pressure
3
in water USGPM
Flow
rate
Pipe
Reynold
s
number
Dischar
ge
coefficie
nt
Rosemount 405 and 1595 69
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May 2022 00821-0100-4810
Table 3-51: Water straight run test, sensor serial number A24261 (continued)
Data
point
number
9 68.0 20.0 36.6 2.52 1.0014 62.3066 15.333 80.04 4.16E +040.6022
Temperature Pressure Viscos-
ity
°F °C psig bar cP lb/ft
Density Differen
-tial
pressure
3
in water USGPM
Flow
rate
Pipe
Reynold
s
number
Dischar
ge
coefficie
nt
Table 3-52: Water after 8 x 6 reduction, sensor serial number A24261
Data
point
number
1 67.4 19.7 37.2 2.56 1.0100 62.3113 239.719 314.82 1.62E +050.5991
2 67.5 19.7 37.2 2.57 1.0093 62.3108 239.842 314.69 1.62E +050.5987
3 67.6 19.8 37.6 2.59 1.0069 62.3096 183.478 275.28 1.42E +050.5988
4 67.8 19.9 37.8 2.61 1.0049 62.3085 134.915 236.17 1.22E +050.5990
5 67.9 20.0 38.1 2.63 1.0031 62.3074 93.659 196.70 1.02E +050.5988
Temperature Pressure Viscos-
ity
°F °C psig bar cP lb/ft
Density Differen
-tial
pressure
3
in Water USGPM
Flow
rate
Pipe
Reynold
s
number
Dischar
ge
coefficie
nt
6 68.0 20.0 38.1 2.63 1.0024 62.3071 93.596 196.93 1.02E +050.5997
7 68.0 20.0 37.4 2.58 1.0019 62.3068 60.060 157.79 8.20E +050.5999
8 68.1 20.1 37.6 2.60 1.0000 62.3057 33.642 118.11 6.15E +050.5999
9 68.3 20.2 37.9 2.61 1.9981 62.3047 15.175 79.33 4.14E +050.6000
Testing sensor A39421 in water
Test laboratory
Model
Sensor serial number
Beta ratio
Pipe size
Pipe inner dimensions
Test date
Rosemount Boulder, Colorado flow lab
Rosemount 1595
A39421
0.65
6 in (152 mm) schedule 40
6.065 in (154.05 mm)
July 3, 2003
70 Emerson.com/Rosemount
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Reference Manual Test facilities and flow tests
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Figure 3-25: Test results for sensor A39421 in water
Table 3-53: Water straight run test, sensor serial number A39421
Data
point
number
1 67.9 19.9 35.8 2.47 1.0033 62.3076 0.593 799.89 4.15E +040.5935
2 68.0 20.0 36.5 2.51 1.0017 62.3067 0.593 691.96 3.60E +040.5931
3 68.2 20.1 37.0 2.55 0.9997 62.3056 0.593 584.16 3.04E +040.5929
4 68.2 20.1 37.0 2.55 0.9991 62.6052 0.593 583.78 3.04E +040.5932
5 68.4 20.2 37.6 2.59 0.9969 62.3040 0.593 471.89 2.46E +040.5931
6 68.6 20.3 38.3 2.64 0.9944 62.3025 0.593 356.62 1.87E +040.5927
Table 3-54: Water after 8 x 6 reduction, sensor serial number A39421
Data
point
number
Temperature Pressure Viscos-
Density Differen
ity
°F °C psig bar cP lb/ft
Temperature Pressure Viscos-
Density Differen
ity
°F °C psig bar cP lb/ft
-tial
pressure
3
in water USGPM
-tial
pressure
3
in water USGPM
Flow
rate
Flow
rate
Pipe
Reynold
s
number
Pipe
Reynold
s
number
Dischar
ge
coefficie
nt
Dischar
ge
coefficie
nt
1 68.5 20.3 35.8 2.47 0.9955 62.3032 191.064 794.40 4.15E +040.5890
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Table 3-54: Water after 8 x 6 reduction, sensor serial number A39421 (continued)
Data
point
number
2 68.6 20.3 36.4 2.51 0.9945 62.3026 146.954 696.11 3.64E +040.5885
3 68.6 26.0 36.9 2.49 0.9938 62.3022 104.287 586.60 3.07E +040.5887
4 68.6 26.1 36.9 2.53 0.9938 62.3022 104.102 586.56 3.07E +040.5892
5 68.7 26.1 37.6 2.53 0.9929 62.3017 65.934 466.88 2.45E +040.5892
6 68.8 26.1 38.3 2.57 0.9914 62.3008 37.840 353.91 1.86E +040.5896
Temperature Pressure Viscos-
ity
°F °C psig bar cP lb/ft
Density Differen
-tial
pressure
3
in water USGPM
Flow
rate
Pipe
Reynold
s
number
Dischar
ge
coefficie
nt
3.11 Butterfly valve at 75 percent open
Testing sensor 12402 in water
Test laboratory
Model
Rosemount Boulder, Colorado flow lab
Rosemount 405C
Fluid
Sensor serial number
Beta ratio
Pipe size
Pipe inner dimension
Test date
Water
12402
0.60
2 in (51 mm) schedule 40
2.066 in (52.48 mm)
April 22, 2002
72 Emerson.com/Rosemount
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Reference Manual Test facilities and flow tests
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Figure 3-26: Test results for sensor 12402 in water
Table 3-55: Water straight run test, sensor serial number 12402
Data
point
number
1 66.6 19.2 28.2 1.95 1.0215 62.3174 265.761 93.08 1.39E +050.6112
2 66.6 19.2 28.2 1.94 1.0218 62.3175 269.224 93.66 1.40E +050.6110
3 66.6 19.2 28.4 1.96 1.0217 62.3175 200.526 80.84 1.21E +050.6111
4 66.6 19.2 28.4 1.96 1.0214 62.3173 165.081 73.51 1.10E +050.6124
5 66.6 19.2 28.5 1.96 1.0210 62.3171 125.494 64.00 9.57E +040.6115
6 66.6 19.2 28.4 1.96 1.0210 62.3171 125.292 63.97 9.57E +040.6117
7 66.6 19.2 28.4 1.96 1.0208 62.3170 86.271 53.10 7.95E +040.6120
8 66.7 19.3 28.4 1.96 1.0197 62.3164 56.759 43.08 6.45E +040.6121
Temperature Pressure Viscos-
Density Differen
ity
°F °C psig bar cP lb/ft
-tial
pressure
3
in water USGPM
Flow
rate
Pipe
Reynold
s
number
Dischar
ge
coefficie
nt
9 66.8 19.4 28.4 1.96 1.0178 62.3154 34.709 33.77 5.07E +040.6136
10 67.0 19.4 28.3 1.95 1.0159 62.3145 17.529 24.01 3.61E +040.6137
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Table 3-56: Water after butterfly valve at 75 percent open, sensor serial number 12402
Data
point
number
1 67.3 19.6 28.2 1.95 1.0120 62.3123 273.212 94.11 1.42E +050.6094
2 67.3 19.6 28.2 1.94 1.0121 62.3124 273.273 94.11 1.42E +050.6094
3 67.3 19.6 28.4 1.96 1.0117 62.3122 202.406 80.96 1.22E +050.6091
4 67.3 19.6 28.4 1.96 1.0112 62.3119 161.512 72.28 1.09E +050.6088
5 67.3 19.6 28.5 1.97 1.0112 62.3119 125.685 63.84 9.64E +040.6095
6 67.4 19.6 28.5 1.97 1.0106 62.3116 125.710 63.84 9.65E +040.6095
7 67.4 19.7 28.5 1.96 1.0101 62.3113 85.354 52.60 7.95E +040.6094
8 67.4 19.7 28.4 1.96 1.0101 62.3113 57.501 43.18 6.53E +040.6096
9 67.6 19.8 28.4 1.96 1.0079 62.3101 35.038 33.81 5.12E +040.6113
Temperature Pressure Viscos-
ity
°F °C psig bar cP lb/ft
Density Differen
-tial
pressure
3
in water USGPM
Flow
rate
Pipe
Reynold
s
Number
Dischar
ge
coefficie
nt
10 67.7 19.8 28.3 1.95 1.0061 62.3091 17.864 24.25 3.68E +040.6140
Testing sensor A24621 in water
Test laboratory
Model
Sensor serial number
Beta ratio
Pipe size
Pipe inner dimension
Test date
Rosemount Boulder, Colorado flow lab
Rosemount 1595
A24621
0.40
6 in (152 mm) schedule 40
6.065 in (154.05 mm)
October 6, 2003
74 Emerson.com/Rosemount
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0.5900
0.6000
0.6100
0.6200
0.6300
1.E+04 1.E+05 1.E+06
Pipe Reynolds Numbe r
Cc
Straight Run Test
2D After Butterf ly Valve at 75% Open
Calculated Cd
+/- 0.50%
Reference Manual Test facilities and flow tests
00821-0100-4810 May 2022
Figure 3-27: Test results for sensor A24261 in water
Table 3-57: Water straight run test, sensor serial number A24261
Data
point
number
1 68.1 20.1 37.1 2.56 1.0006 62.3061 252.276 323.31 1.68E +050.5997
2 68.1 20.1 37.1 2.56 1.0007 62.3061 252.559 323.79 1.68E +050.6003
3 68.1 20.1 37.4 2.58 1.0002 62.3059 182.830 275.19 1.43E +050.5996
4 68.2 20.1 37.7 2.60 1.9997 62.3056 135.598 237.46 1.24E +050.6008
5 68.2 20.1 37.7 2.60 1.9996 62.3055 135.561 237.11 1.23E +040.6000
6 68.2 20.1 37.9 2.62 1.9992 62.3053 94.516 198.09 1.03E +040.6003
7 68.0 20.0 35.8 2.47 1.0018 62.3067 60.437 158.64 8.24E +040.6012
8 68.0 20.0 36.1 2.49 1.0017 62.3067 33.918 118.86 6.18E +040.6013
Temperature Pressure Viscos-
Density Differen
ity
°F °C psig bar cP lb/ft
-tial
pressure
3
in water USGPM
Flow
rate
Pipe
Reynold
s
number
Dischar
ge
coefficie
nt
9 68.0 20.0 36.6 2.52 1.0014 62.3066 15.333 80.04 4.16E +040.6022
Rosemount 405 and 1595 75
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Table 3-58: Water after butterfly valve at 75 percent open, sensor serial number A24261
Data
point
number
1 68.4 20.2 36.4 2.51 0.9965 62.3037 238.643 314.20 1.64E +050.5994
2 68.4 20.2 36.4 2.51 0.9965 62.3037 238.600 314.46 1.64E +050.6000
3 68.4 20.2 36.6 2.52 0.9964 62.3037 182.066 274.63 1.43E +050.5999
4 68.4 20.2 36.7 2.53 0.9963 62.3037 133.842 235.71 1.23E +050.6005
5 68.4 20.2 36.9 2.54 0.9961 62.3035 93.363 196.92 1.03E +040.6006
6 68.4 20.2 36.9 2.54 0.9961 62.3036 93.286 196.73 1.03E +040.6003
7 68.3 20.2 33.9 2.34 0.9977 62.3045 59.160 156.85 8.18E +040.6010
8 68.3 20.2 34.3 2.37 0.9977 62.3045 33.318 118.03 6.16E +040.6027
Temperature Pressure Viscos-
ity
°F °C psig bar cP lb/ft
Density Differen
-tial
pressure
3
in water USGPM
Flow
rate
Pipe
Reynold
s
number
Dischar
ge
coefficie
nt
3.12 Gate valve
Test laboratory
Model
Fluid
Sensor serial number
Beta ratio
Pipe size
Pipe inner dimension
Test date
Daniel Flow Products, Inc. flow lab
Rosemount 405C
Water
04D407574
0.40
4 in (102 mm) schedule 40
4.026 in (102.26 mm)
January 23, 2004
76 Emerson.com/Rosemount
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Figure 3-28: Gate valve test results for sensor 04D407574
Note
Gate valve was simulated using a segmental orifice plate.
Table 3-59: Water baseline test, sensor serial number 04D407574
Data
point
number
1 67.8 19.9 80.4 5.54 0.0101 62.3176 85.511 38.87 2.27E
2 67.8 19.9 79.8 5.50 0.0100 62.3170 85.291 38.81 2.27E
3 68.3 20.2 80.1 5.52 0.0100 62.3138 53.319 30.74 1.81E
4 68.8 20.4 80.1 5.52 0.0099 62.3102 28.605 22.56 1.33E
5 69.0 20.5 80.2 5.53 0.0099 62.3088 16.386 17.10 1.01E
6 78.2 25.7 80.4 5.55 0.0088 62.2327 8.6850 12.44 8.31E
(1) Inches of Hg under water
Temperature Pressure Viscos-
ity
°F °C psig bar absolute lb/ft
Density Differen
3
-tial
pressure
(1)ft3
in Hg
Flow
rate
/min
Pipe
Reynold
s
number
+05
+05
+05
+05
+05
+04
Dischar
ge
coefficie
nt
0.5963
0.5962
0.5973
0.5984
0.5992
0.5986
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Table 3-60: Water, simulated gate valve at 50 percent, sensor serial number 04D407574
Data
point
number
Temperature Pressure Viscos-
Density Differen
ity
°F °C psig bar absolute lb/ft
3
-tial
pressure
(1)ft3
in Hg
Flow
rate
/min
Pipe
Reynold
s
number
Dischar
ge
coefficie
nt
1 69.7 21.0 79.7 5.50 0.0098 62.3032 87.675 39.40 2.36E +050.5969
2 70.8 21.6 80.1 5.53 0.0096 62.2949 87.678 39.41 2.39E +050.5970
3 71.0 21.6 79.7 5.50 0.0096 62.2939 53.559 30.84 1.88E +050.5978
4 71.1 21.7 80.0 5.52 0.0096 62.2928 28.317 22.44 1.37E +050.5982
5 71.2 21.8 79.7 5.50 0.0096 62.2923 16.527 17.17 1.05E +050.5991
6 71.3 21.8 80.0 5.51 0.0096 62.2913 8.2390 12.12 7.41E +040.5991
(1) Inches of Hg under water.
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4 Flow calculations
The Rosemount 405 and 1595 Primary Flow Elements are sized using the
Instrument Toolkit™ sizing program. This program provides accurate flow calculations
using installation details and fluid properties for the flow meter and presents this on a
calculation data sheet or specification sheet.
4.1 Rosemount 405C and 1595 Conditioning Orifice Plate
4.1.1 Calculated values and variables designations
C = Discharge coefficient
CC = Discharge coefficient corrected by calibration factor
d = Bore diameter corrected for thermal expansion (inches [US units], m [SI units])
dc = Calculated bore diameter (inches [US units], m [SI units])
d
= Measured typical orifice bore diameter (assumed to be 68 °F (20 °C)). See Table 4-1 or
meas
FC = Calibration factor (0.750 < Fc < 1.250)
FS = Pipe schedule adjustment factor (see Table 4-6 for value)
hw = Differential pressure (inwc [US units], Pa[SI units])
ΔP = Differential pressure (inwc [US units], Pa [SI units])
MID = Meter internal diameter corrected for thermal expansion (inches [US units], m [SI units])
M
ID
meas
PID = Pipe internal diameter corrected for thermal expansion (inches [US units], m [SI units])
P
ID
meas
P1 = Upstream static pressure (PSI [US units], Pa [SI units])
P2 = Downstream static pressure (PSI [US units], Pa [SI units])
qm = Mass flow rate (in lbm/s [US units] or kg/s [SI units], a conversion factor must be applied
RD = Pipe Reynolds number
t = Process temperature (°F [US units], °C [SI units])
Table 4-2. (inches [US units], m [SI units])
= Meter internal ID (assumed to be 68 °F (20 °C)) See Table 4-1. (inches [US units], m [SI
units])
= Measured ID (assumed to be 68 °F (20 °C)) (inches [US units], m [SI units])
to other units)
t
= Temperature at bore / pipe internal diameter measurement (assumed to be 68 °F (20 °C))
meas
Y1 = Gas expansion factor
αP = Thermal expansion factor of the pipe (in./in./°F [US units], m/m/°C [SI units])
αPE = Thermal expansion factor of the primary element (in./in./°F [US units], m/m/°C [SI units])
Rosemount 405 and 1595 79
(°F [US units], °C [SI units])
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βc = Beta ratio using calculated bore diameter
ε 1 = Gas expansion factor
κ = Isentropic exponent
μ = Viscosity (cP [US units], Pa-s [SI units])
ρ = Density (lbm/ft3 [US units])
ρ
= Density (kg/m3 [SI units])
F
1
4.1.2 Equations
Figure 4-1: Equation 1: Flow rate equations (ASME MFC-3M and ISO-5167)
Figure 4-2: Equation 2: Reynolds number equation
Figure 4-3: Equation 3: Calculated bore size
The calculated bore size is twice the typical hole size (size of one of the four holes).
dc = 2d
Figure 4-4: Equation 4: Beta
Beta is calculated using the meter internal diameter and calculated bore diameter.
Figure 4-5: Thermal expansion corrections
dc = [1 + αPE(t - t
MID = [1 + αPE(t - t
PID = [1 + αP(t - t
meas
meas
meas
)]d
)]P
meas
)]M
ID
ID
meas
meas
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Figure 4-6: Equation 5: Discharge coefficient equations (ISO-5167)
Rosemount 405C Compact Conditioning Orifice Plate, line sizes 2 in (51 mm) to 8 in
(203 mm)
For 2 in (51 mm) models, add this additional term when calculating C:
Figure 4-7: Equation 6: Discharge coefficient calibration factory adjustment
Cc = CFcF
s
Figure 4-8: Equation 7: Rosemount 1595 Conditioning Orifice Plate line sizes 2 in
(51 mm) to 24 in (610 mm)
Beta is calculated using the pipe diameter and calculated bore diameter.
Figure 4-9: Equation 8: Discharge coefficient calibration factory adjustment
Cc = CF
c
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Figure 4-10: Equation 9: Calculated bore size
The calculated bore size is twice the typical hole size (size of one of the four holes).
dc = 2d
Where:
If the 2 in (51 mm) model or pipe internal diameter is less than 2.8 in (71 mm), add this
additional term when calculating C:
Figure 4-11: Equation 10: Gas expansion factor (ISO-5167) equation
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4.2 Rosemount 405P Compact Orifice Plate
4.2.1 Calculated values and variables designations
Cd = Discharge coefficient
CS = Discharge coefficient corrected by pipe schedule adjustment factor
d = Bore diameter corrected for thermal expansion (inches [US units], m [SI units])
d
= Measured typical orifice bore diameter (assumed to be 68 °F (20 °C)). See Table 4-1 or
meas
Fs = Pipe schedule adjustment factor (see Table 4-5 for value)
hw = Differential pressure (inwc [US units], Pa[SI units])
ΔP = Differential pressure (inwc [US units], Pa[SI units])
MID = Meter internal diameter corrected for thermal expansion (inches [US units], m [SI units])
M
ID
meas
Table 4-2. (inches [US units], m [SI units])
= Meter internal ID (assumed to be 68 °F (20 °C)) See Table 4-1. (inches [US units], m [SI
units])
PID = Pipe internal diameter corrected for thermal expansion (inches [US units], m [SI units])
P
= Measured ID (assumed to be 68 °F) (inches [US units], m [SI units])
ID
meas
P1 = Upstream static pressure (PSI [US units], Pa [SI units])
P2 = Downstream static pressure (PSI [US units], Pa [SI units])
qm = Mass flow rate (in lbm/s [US units] or kg/s [SI units], a conversion factor must be applied
to other units)
RD = Pipe Reynolds number
t = Process temperature (°F [US units], °C [SI units])
t
= Temperature at bore / pipe internal diameter measurement (assumed to be 68 °F (20 °C))
meas
(°F [US units], °C [SI units])
Y1 = Gas expansion factor
αP = Thermal expansion factor of the pipe (in./in./°F [US units], m/m/°C [SI units])
αPE = Thermal expansion factor of the primary element (in./in./°F [US units], m/m/°C [SI units])
β = Beta ratio
ε 1 = Gas expansion factor
κ = Isentropic exponent
μ = Viscosity (cP [US units], Pa-s [SI units])
ρ = Density (lbm/ft3 [US units])
ρ
= Density (kg/m3 [SI units])
F
1
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A, B, C, D,
E, F, G, H, I,
J
A, B, C, D,
E, F
See ½, 1, 1½ discharge coefficient table of coefficients
See effective beta table of coefficients
4.2.2 Equations
Figure 4-12: Equation 11: Flow rate equations (ASME MFC-3M and ISO-5167)
Figure 4-13: Equation 12: Reynolds number equation
Figure 4-14: Thermal expansion corrections
d = [1 + αPE(t - t
MID = [1 + αPE(t - t
PID = [1 + αP(t - t
meas
meas
)]d
meas
)]P
meas
)]M
ID
ID
meas
meas
Figure 4-15: Equation 13: Discharge coefficient equations (ISO-5167)
Line sizes 0.5 in (13 mm), 1 in (25 mm), and 1.5 in (38 mm)
Figure 4-16: Equation 14
Line sizes 0.5 in (13 mm), 1 in (25 mm), and 1.5 in (38 mm)
CS = CdF
S
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Figure 4-17: Equation 15
Line sizes 2 in (51 mm), 3 in (76 mm), 4 in (102 mm), 6 in (152 mm), and8 in (203 mm)
Figure 4-18: Equation 16
Line sizes 2 in (51 mm), 3 in (76 mm), 4 in (102 mm), 6 in (152 mm), and8 in (203 mm)
CS = CdF
S
Figure 4-19: Equation 17: Gas expansion factor (ISO-5167) equation
4.3 Flow calculation tables
Table 4-1: Rosemount 405C nominal meter inside diameter and typical orifice hole size
Line size Beta ratio (β) Meter inside diameter Typical orifice hole size
2 in (51 mm) 0.40 2.067 in (52.5 mm) 0.413 in (10.5 mm)
0.50 2.067 in (52.5 mm) 0.517 in (13.13 mm)
0.60 2.067 in (52.5 mm) 0.62 in (15.7 mm)
3 in (76 mm) 0.40 3.068 in (77.9 mm) 0.614 in (15.6 mm)
0.50 3.068 in (77.9 mm) 0.767 in (19.48 mm)
0.65 3.068 in (77.9 mm) 0.997 in (25.3 mm)
4 in (102 mm) 0.40 4.026 in (102.3 mm) 0.805 in (20.4 mm)
0.50 4.026 in (102.3 mm) 1.007 in (25.58 mm)
0.65 4.026 in (102.3 mm) 1.309 in (33.2 mm)
6 in (152 mm) 0.40 6.065 in (154.1 mm) 1.213 in (30.8 mm)
0.50 6.065 in (154.1 mm) 1.516 in (38.51 mm)
0.65 6.065 in (154.1 mm) 1.971 in (50.1 mm)
8 in (203 mm) 0.40 7.981 in (202.7 mm) 1.596 in (40.5 mm)
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Table 4-1: Rosemount 405C nominal meter inside diameter and typical orifice hole size (continued)
Line size Beta ratio (β) Meter inside diameter Typical orifice hole size
0.50 7.981 in (202.7 mm) 1.995 in (50.67 mm)
0.65 7.981 in (202.7 mm) 2.594 in (65.9 mm)
10 in (254 mm) 0.40 10.02 in (254.5 mm) 2.004 in (50.9 mm)
0.50 10.02 in (254.5 mm) 2.505 in (63.63 mm)
0.65 10.02 in (254.5 mm) 3.257 in (82.73 mm)
12 in (305 mm) 0.40 12 in (305 mm) 2.4 in (60.96 mm)
0.50 12 in (305 mm) 3 in (76.2 mm)
0.65 12 in (305 mm) 3.9 in (99.06 mm)
Table 4-2: Rosemount 1595 typical orifice hole size
Line size Beta ratio (β) Typical orifice hole size
2 in (51 mm) 0.40 0.413 in (10.5 mm)
0.50 0.517 in (13.13 mm)
0.60 0.62 in (15.7 mm)
3 in (76 mm) 0.40 0.614 in (15.6 mm)
0.50 0.767 in (19.48 mm)
0.65 0.997 in (25.3 mm)
4 in (102 mm) 0.40 0.805 in (20.4 mm)
0.50 1.007 in (25.58 mm)
0.65 1.309 in (33.2 mm)
6 in (152 mm) 0.40 1.213 in (30.8 mm)
0.50 1.516 in (38.51 mm)
0.65 1.971 in (50.1 mm)
8 in (203 mm) 0.40 1.596 in (40.5 mm)
0.50 1.995 in (50.67 mm)
0.65 2.594 in (65.9 mm)
10 in (254 mm) 0.40 2.004 in (50.9 mm)
0.50 2.505 in (63.63 mm)
0.65 3.257 in (82.7 mm)
12 in (305 mm) 0.40 2.4 in (61 mm)
0.50 3 in (76 mm)
0.65 3.9 in (99 mm)
14 in (356 mm) 0.40 2.625 in (66.7 mm)
0.50 3.281 in (83.34 mm)
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Table 4-2: Rosemount 1595 typical orifice hole size (continued)
Line size Beta ratio (β) Typical orifice hole size
0.65 4.265 in (108.3 mm)
16 in (406 mm) 0.40 3 in (76 mm)
0.50 3.75 in (95.2 mm)
0.65 4.875 in (123.8 mm)
18 in (457 mm) 0.40 3.375 in (85.7 mm)
0.50 4.219 in (107.16 mm)
0.65 5.485 in (139.3 mm)
20 in (508 mm) 0.40 3.762 in (95.6 mm)
0.50 3.762 in (95.6 mm)
0.65 6.114 in (155.3 mm)
24 in (610 mm) 0.40 4.525 in (114.9 mm)
0.50 5.656 in (143.66 mm)
0.65 7.353 in (186.8 mm)
Table 4-3: Rosemount 405P nominal inside diameter and orifice bore diameter
Line size Beta ratio (β) Meter inside diameter Typical orifice hole size
0.5 in (13 mm) 0.40 0.622 in (15.8 mm) 0.249 in (6.3 mm)
0.50 0.622 in (15.8 mm) 0.311 in (7.90 mm)
0.65 0.622 in (15.8 mm) 0.404 in (10.3 mm)
1 in (25 mm) 0.40 1.049 in (26.6 mm) 0.42 in (10.7 mm)
0.50 1.049 in (26.6 mm) 0.525 in (13.33 mm)
0.65 1.049 in (26.6 mm) 0.682 in (17.3 mm)
1.5 in (38 mm) 0.40 1.61 in (40.9 mm) 0.644 in (16.4 mm)
0.50 1.61 in (40.9 mm) 0.805 in (20.45 mm)
0.65 1.61 in (40.9 mm) 1.047 in (26.6 mm)
2 in (51 mm) 0.40 2.067 in (52.5 mm) 0.827 in (21.0 mm)
0.50 2.067 in (52.5 mm) 1.034 in (26.26 mm)
0.65 2.067 in (52.5 mm) 1.344 in (34.1 mm)
3 in (76 mm) 0.40 3.068 in (77.9 mm) 1.227 in (31.2 mm)
0.50 3.068 in (77.9 mm) 1.534 in (38.96 mm)
0.65 3.068 in (77.9 mm) 1.994 in (50.6 mm)
4 in (102 mm) 0.40 4.026 in (102.3 mm) 1.61 in (40.9 mm)
0.50 4.026 in (102.3 mm) 2.013 in (51.13 mm)
0.65 4.026 in (102.3 mm) 2.617 in (66.5 mm)
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Table 4-3: Rosemount 405P nominal inside diameter and orifice bore diameter (continued)
Line size Beta ratio (β) Meter inside diameter Typical orifice hole size
6 in (152 mm) 0.40 6.065 in (154.1 mm) 2.426 in (61.6 mm)
0.50 6.065 in (154.1 mm) 3.033 in (77.04 mm)
0.65 6.065 in (154.1 mm) 3.942 in (100.1 mm)
8 in (203 mm) 0.40 7.981 in (202.7 mm) 3.192 in (81.1 mm)
0.50 7.981 in (202.7 mm) 3.991 in (101.37 mm)
0.65 7.981 in (202.7 mm) 5.188 in (131.8 mm)
Table 4-4: Coefficients for determination of 0.5 in (13 mm), 1 in (25 mm), and 1.5 in (38 mm) Cd
A B C D E
D = 0.5 in
(13 mm)
D = 1 in (25 mm) 0.07300363 -0.346828 0.2588337 -0.03890471 0.595342
D = 1.5 in
(38 mm)
F G H I J
D = 0.5 in
(13 mm)
D = 1 in (25 mm) 6.377415 12.17111 -6.079081 0.6620094 1.408031
D = 1.5 in
(38 mm)
2.854437 -3.378356 1.205753 -0.07817863 0.5884229
-0.3459831 0.040353 0.2830634 -0.1111218 0.6051001
52.11968 -77.01062 56.26178 -17.54468 3.146987
89.79559 -124.0909 66.42804 -13.71296 2.337983
Table 4-5: Rosemount 405P pipe adjustment factors
Pipe size Beta ratio (β) Schedule 10 (Fs) Schedule 40 (Fs) Schedule 80 (Fs)
0.5 in (13 mm) 0.40 1.0148 1.0208 1.0299
0.50 0.9899 0.9921 1.0271
0.65 0.9540 0.9768 1.0112
1 in (25 mm) 0.40 1.0139 1.0188 1.0287
0.50 1.0186 1.0151 1.0302
0.65 1.0143 1.0339 1.0737
1.5 in (38 mm) 0.40 1.0103 1.0163 1.0262
0.50 0.9959 1.0075 1.0253
0.65 1.0038 1.0288 1.0702
2-in. (50.8 mm) 0.40 1.0058 1.0097 1.0157
0.50 0.9934 1.0000 1.0094
0.65 0.9915 1.0163 1.0553
3 in (76 mm) 0.40 1.0026 1.0083 1.0141
88 Emerson.com/Rosemount
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Reference Manual Flow calculations
00821-0100-4810 May 2022
Table 4-5: Rosemount 405P pipe adjustment factors (continued)
Pipe size Beta ratio (β) Schedule 10 (Fs) Schedule 40 (Fs) Schedule 80 (Fs)
0.50 0.9911 1.0000 1.0078
0.65 0.9793 1.0133 1.0496
4 in (102 mm) 0.40 1.0034 1.0073 1.0118
0.50 0.9878 1.0000 1.0104
0.65 0.9896 1.0106 1.0368
6 in (152 mm) 0.40 0.9988 1.0027 1.0052
0.50 0.9918 1.0000 1.0085
0.65 0.9819 0.993 1.0178
8 in (203 mm) 0.40 0.9970 0.990 1.0036
0.50 0.9911 1.000 1.0091
0.65 0.9833 0.9937 1.0212
10 in (254 mm) 0.40 0.9960 0.9999 1.0052
0.50 0.9911 1.0000 1.0085
0.65 0.9764 0.9968 1.0178
12 in (305 mm) 0.40 0.9950 0.9979 1.0036
0.50 0.9943 1.0000 1.0091
0.65 0.9740 0.9908 1.0212
Table 4-6: Rosemount 405C pipe adjustment factors
Pipe size Beta ratio (β) Schedule 10 (Fs) Schedule 40 (Fs) Schedule 80 (Fs)
2 in (51 mm) 0.40 0.9984 1.0000 1.0077
0.50 0.9957 1.0000 1.0062
0.60 0.9950 1.0000 1.0165
3 in (76 mm) 0.40 0.9960 1.0000 1.0050
0.50 0.9980 1.0000 1.0018
0.65 0.9927 1.0000 1.0033
4 in (102 mm) 0.40 0.9965 1.0000 1.0064
0.50 0.9955 1.0000 1.0038
0.65 0.9945 1.0000 1.0052
6 in (152 mm) 0.40 0.9973 0.9999 1.0021
0.50 0.9975 1.0000 1.0026
0.65 0.9896 1.0001 1.0095
8 in (203 mm) 0.40 0.9984 1.0003 1.0016
0.50 0.9974 1.0000 1.0026
Rosemount 405 and 1595 89
Page 90
Flow calculations Reference Manual
May 2022 00821-0100-4810
Table 4-6: Rosemount 405C pipe adjustment factors (continued)
Pipe size Beta ratio (β) Schedule 10 (Fs) Schedule 40 (Fs) Schedule 80 (Fs)
0.65 0.9836 0.9998 1.0048
10 in (254 mm) 0.40 0.9989 1.0003 1.0010
0.50 0.9978 1.0000 1.0015
0.65 0.9980 0.9997 1.0032
12 in (305 mm) 0.40 0.9985 1.0001 0.9967
0.50 0.9983 1.0000 1.0043
0.65 0.9871 0.9997 0.9845
90 Emerson.com/Rosemount
Page 91
Reference Manual
00821-0100-4810 May 2022
Rosemount 405 and 1595 91
Page 92
00821-0100-4810
Rev. EB
2022
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