Reference manual
00809-0100-4444, Rev AG
October 2018
Rosemount™ 8732EM Transmitter with HART
Protocol Reference Manual
2
Reference manual Contents
00809-0100-4444 October 2018
Contents
Chapter 1 Safety messages.............................................................................................................7
Chapter 2 Introduction.................................................................................................................11
2.1 System description.........................................................................................................................11
2.2 Product recycling/disposal............................................................................................................. 12
Chapter 3 Sensor Installation....................................................................................................... 13
3.1 Handling and Lifting Safety.............................................................................................................13
3.2 Location and Position..................................................................................................................... 13
3.3 Sensor Installation.......................................................................................................................... 16
3.4 Process reference connection.........................................................................................................24
Chapter 4 Remote Transmitter Installation...................................................................................29
4.1 Pre-installation............................................................................................................................... 29
4.2 Transmitter symbols.......................................................................................................................31
4.3 Mounting....................................................................................................................................... 31
4.4 Wiring............................................................................................................................................ 32
Chapter 5 Basic Configuration...................................................................................................... 47
5.1 Cover jam screw............................................................................................................................. 47
5.2 Basic Setup..................................................................................................................................... 47
5.3 Local operator interface (LOI)......................................................................................................... 48
5.4 Field Communicator interface........................................................................................................ 48
5.5 Measurement units........................................................................................................................ 49
Chapter 6 Advanced installation details........................................................................................51
6.1 Hardware switches......................................................................................................................... 51
6.2 Additional loops............................................................................................................................. 54
6.3 Coil housing configuration............................................................................................................. 63
Chapter 7 Operation.................................................................................................................... 71
7.1 Introduction................................................................................................................................... 71
7.2 Local operator interface (LOI)......................................................................................................... 71
7.3 Field Communicator interface........................................................................................................ 81
Chapter 8 Advanced Configuration Functionality......................................................................... 89
8.1 Introduction................................................................................................................................... 89
8.2 Configure outputs.......................................................................................................................... 89
8.3 Configure HART............................................................................................................................102
8.4 Configure LOI............................................................................................................................... 106
8.5 Additional parameters..................................................................................................................106
8.6 Configure special units................................................................................................................. 108
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Contents Reference manual
October 2018 00809-0100-4444
Chapter 9 Advanced Diagnostics Configuration..........................................................................111
9.1 Introduction................................................................................................................................. 111
9.2 Licensing and enabling................................................................................................................. 112
9.3 Tunable empty pipe detection......................................................................................................112
9.4 Electronics temperature............................................................................................................... 114
9.5 Ground/wiring fault detection...................................................................................................... 114
9.6 High process noise detection........................................................................................................115
9.7 Coated electrode detection..........................................................................................................116
9.8 4-20 mA loop verification............................................................................................................. 117
9.9 SMART™ Meter Verification...........................................................................................................119
9.10 Run manual SMART Meter Verification....................................................................................... 121
9.11 Continuous SMART Meter Verification........................................................................................123
9.12 SMART Meter Verification test results.........................................................................................123
9.13 SMART Meter Verification measurements.................................................................................. 125
9.14 Optimizing the SMART Meter Verification.................................................................................. 127
Chapter 10 Digital Signal Processing............................................................................................ 131
10.1 Introduction............................................................................................................................... 131
10.2 Safety messages.........................................................................................................................131
10.3 Process noise profiles................................................................................................................. 132
10.4 High process noise diagnostic.................................................................................................... 132
10.5 Optimizing flow reading in noisy applications.............................................................................132
10.6 Explanation of signal processing algorithm.................................................................................135
Chapter 11 Maintenance..............................................................................................................139
11.1 Introduction............................................................................................................................... 139
11.2 Safety information......................................................................................................................139
11.3 Installing a Local Operator Interface........................................................................................... 139
11.4 Replacing electronics stack.........................................................................................................140
11.5 Replacing a socket module/terminal block................................................................................. 142
11.6 Trims..........................................................................................................................................147
11.7 Review........................................................................................................................................149
Chapter 12 Troubleshooting........................................................................................................ 151
12.1 Introduction............................................................................................................................... 151
12.2 Safety information......................................................................................................................151
12.3 Installation check and guide....................................................................................................... 152
12.4 Diagnostic messages..................................................................................................................154
12.5 Basic troubleshooting.................................................................................................................165
12.6 Sensor troubleshooting.............................................................................................................. 169
12.7 Installed sensor tests.................................................................................................................. 172
12.8 Uninstalled sensor tests..............................................................................................................174
12.9 Technical support.......................................................................................................................176
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00809-0100-4444 October 2018
12.10 Service..................................................................................................................................... 176
Appendix A Product Specifications................................................................................................179
A.1 Rosemount 8700M Flowmeter Platform specifications ................................................................179
A.2 Transmitter specifications............................................................................................................ 184
A.3 8705-M Flanged Sensor Specifications......................................................................................... 194
A.4 8711-M/L Wafer Sensor Specifications......................................................................................... 199
A.5 8721 Hygienic (Sanitary) Sensor Specifications............................................................................ 202
Appendix B Product Certifications................................................................................................ 207
Appendix C Wiring Diagrams........................................................................................................ 209
C.1 Wiring sensor to transmitter........................................................................................................ 209
C.2 775 Smart Wireless THUM™ Adapter wiring diagrams...................................................................211
C.3 475 Field Communicator wiring diagrams.................................................................................... 213
Appendix D Implementing a Universal Transmitter....................................................................... 215
D.1 Safety messages.......................................................................................................................... 215
D.2 Universal capability...................................................................................................................... 215
D.3 Three step process....................................................................................................................... 215
D.4 Wiring the universal transmitter...................................................................................................216
D.5 Rosemount sensors......................................................................................................................217
D.6 Brooks sensors............................................................................................................................. 220
D.7 Endress and Hauser sensors......................................................................................................... 222
D.8 Fischer and Porter sensors............................................................................................................223
D.9 Foxboro sensors...........................................................................................................................229
D.10 Kent Veriflux VTC sensor............................................................................................................ 234
D.11 Kent sensors.............................................................................................................................. 235
D.12 Krohne sensors.......................................................................................................................... 236
D.13 Taylor sensors............................................................................................................................ 237
D.14 Yamatake Honeywell sensors.....................................................................................................239
D.15 Yokogawa sensors..................................................................................................................... 241
D.16 Generic manufacturer sensor to 8732 Transmitter.....................................................................242
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Contents Reference manual
October 2018 00809-0100-4444
6 Rosemount™ 8732EM Transmitter with HART Protocol Reference Manual
Reference manual Safety messages
00809-0100-4444 October 2018
1 Safety messages
WARNING
General hazards. Failure to follow these instructions could result in death or serious
injury.
• Read this manual before working with the product. For personal and system
safety, and for optimum product performance, make sure you thoroughly
understand the contents before installing, using, or maintaining this product.
• Installation and servicing instructions are for use by qualified personnel only. Do
not perform any servicing other than that contained in the operating instructions,
unless qualified.
• Verify the installation is completed safely and is consistent with the operating
environment.
• Do not substitute factory components with non-factory compenents. Substitution
of components may impair Intrinsic Safety.
• Do not perform any services other than those contained in this manual.
• Process leaks may result in death or serious injury.
• Mishandling products exposed to a hazardous substance may result in death or
serious injury.
• The electrode compartment may contain line pressure; it must be depressurized
before the cover is removed.
• If the product being returned was exposed to a hazardous substance as defined by
OSHA, a copy of the required Material Safety Data Sheet (MSDS) for each
hazardous substance identified must be included with the returned goods.
• 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 Process Management Sales Representative.
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Safety messages Reference manual
October 2018 00809-0100-4444
WARNING
Explosion hazards. Failure to follow these instructions could cause an explosion,
resulting in death or serious injury.
• If installed in explosive atmospheres [hazardous areas, classified areas, or an “Ex”
environment], it must be assured that the device certification and installation
techniques are suitable for that particular environment.
• Do not remove transmitter covers in explosive atmospheres when the circuit is
live. Both transmitter covers must be fully engaged to meet explosion-proof
requirements.
• Do not disconnect equipment when a flammable or combustible atmosphere is
present.
• Before connecting a HART-based communicator in an explosive atmosphere,
make sure the instruments in the loop are installed in accordance with
intrinsically safe or non-incendive field wiring practices.
• Do not connect a Rosemount transmitter to a non-Rosemount sensor that is
located in an explosive atmosphere. The transmitter has not been evaluated for
use with other manufacturers' magnetic flowmeter sensors in hazardous (Ex or
Classified) areas. Special care should be taken by the end-user and installer to
ensure the transmitter meets the safety and performance requirements of the
other manufacturer’s equipment.
• Follow national, local, and plant standards to properly earth ground the
transmitter and sensor. The earth ground must be separate from the process
reference ground.
• Rosemount Magnetic Flowmeters ordered with non-standard paint options or
non-metallic labels may be subject to electrostatic discharge. To avoid
electrostatic charge build-up, do not rub the flowmeter with a dry cloth or clean
with solvents.
WARNING
Electrical hazards. Failure to follow these instructions could cause damaging and
unsafe discharge of electricity, resulting in death or serious injury.
• Follow national, local, and plant standards to properly earth ground the
transmitter and sensor. The earth ground must be separate from the process
reference ground.
• Disconnect power before servicing circuits.
• Allow ten minutes for charge to dissipate prior to removing electronics
compartment cover. The electronics may store energy in this period immediately
after power is removed.
• Avoid contact with leads and terminals. High voltage that may be present on leads
could cause electrical shock.
• Rosemount Magnetic Flowmeters ordered with non-standard paint options or
non-metallic labels may be subject to electrostatic discharge. To avoid
electrostatic charge build-up, do not rub the flowmeter with a dry cloth or clean
with solvents.
NOTICE
Damage hazards. Failure to follow these instructions could resulting damage or
destruction of equipment.
8 Rosemount™ 8732EM Transmitter with HART Protocol Reference Manual
Reference manual Safety messages
00809-0100-4444 October 2018
• The sensor liner is vulnerable to handling damage. Never place anything through the
sensor for the purpose of lifting or gaining leverage. Liner damage may render the
sensor inoperable.
• Metallic or spiral-wound gaskets should not be used as they will damage the liner face
of the sensor. If spiral wound or metallic gaskets are required for the application, lining
protectors must be used. If frequent removal is anticipated, take precautions to
protect the liner ends. Short spool pieces attached to the sensor ends are often used
for protection.
• Correct flange bolt tightening is crucial for proper sensor operation and life. All bolts
must be tightened in the proper sequence to the specified torque specifications.
Failure to observe these instructions could result in severe damage to the sensor lining
and possible sensor replacement.
• In cases where high voltage/high current are present near the meter installation,
ensure proper protection methods are followed to prevent stray electricity from
passing through the meter. Failure to adequately protect the meter could result in
damage to the transmitter and lead to meter failure.
• Completely remove all electrical connections from both sensor and transmitter prior to
welding on the pipe. For maximum protection of the sensor, consider removing it from
the pipeline.
• Do not connect mains or line power to the magnetic flowtube sensor or to the
transmitter coil excitation circuit.
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Safety messages Reference manual
October 2018 00809-0100-4444
10 Rosemount™ 8732EM Transmitter with HART Protocol Reference Manual
Reference manual Introduction
00809-0100-4444 October 2018
2 Introduction
2.1 System description
The 8700M Magnetic Flowmeter Platform consists of a sensor and a transmitter. The
sensor is installed in-line with the process piping; the transmitter can be integrally
mounted or remotely mounted to the sensor.
Figure 2-1: Intergral field mount transmitter
Figure 2-2: Remote field mount transmitter
There are three Rosemount® flow sensors available.
Figure 2-3: 8705 Flanged sensor
(1)
(1) Also available for use with 8707 High Signal sensor with dual calibration (option code D2).
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Introduction
October 2018 00809-0100-4444
Figure 2-4: 8711 Wafer sensor
Figure 2-5: 8721 Hygienic sensor
Reference manual
The flow sensor contains two magnetic coils located on opposite sides of the sensor. Two
electrodes, located perpendicular to the coils and opposite each other, make contact with
the liquid. The transmitter energizes the coils and creates a magnetic field. A conductive
liquid moving through the magnetic field generates an induced voltage at the electrodes.
This voltage is proportional to the flow velocity. The transmitter converts the voltage
detected by the electrodes into a flow reading. A cross-sectional view is show in Figure 2-6.
Figure 2-6: (8705) Sensor cross section
2.2 Product recycling/disposal
Recycling of equipment and packaging should be taken into consideration and disposed of
in accordance with local and national legislation/regulations.
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Reference manual Sensor Installation
00809-0100-4444 October 2018
3 Sensor Installation
This chapter provides instructions for handling and installing the flow sensor with or
without an integrally mounted transmitter.
Related information
Remote Transmitter Installation
3.1 Handling and Lifting Safety
CAUTION
To reduce the risk of personal injury or damage to equipment, follow all lifting and
handling instructions.
• Handle all parts carefully to prevent damage. Whenever possible, transport the
system to the installation site in the original shipping container.
• PTFE-lined sensors are shipped with end covers that protect it from both
mechanical damage and normal unrestrained distortion. Remove the end covers
just before installation.
• Keep the shipping plugs in the conduit ports until you are ready to connect and
seal them. Appropriate care should be taken to prevent water ingress.
• The sensor should be supported by the pipeline. Pipe supports are recommended
on both the inlet and outlet sides of the sensor pipeline. There should be no
additional support attached to the sensor.
• Use proper PPE (Personal Protection Equipment) including safety glasses and steel
toed shoes.
• Do not lift the meter by holding the electronics housing or junction box.
• The sensor liner is vulnerable to handling damage. Never place anything through
the sensor for the purpose of lifting or gaining leverage. Liner damage can render
the sensor useless.
• Do not drop the device from any height.
3.2 Location and Position
3.2.1 Environmental considerations
To ensure maximum transmitter life, avoid extreme temperatures and excessive vibration.
Typical problem areas include the following:
• High-vibration lines with integrally mounted transmitters
• Tropical/desert installations in direct sunlight
• Outdoor installations in arctic climates
Remote mounted transmitters may be installed in the control room to protect the
electronics from the harsh environment and to provide easy access for configuration or
service.
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October 2018 00809-0100-4444
3.2.2 Upstream and downstream piping
To ensure specified accuracy over widely varying process conditions, install the sensor
with a minimum of five straight pipe diameters upstream and two pipe diameters
downstream from the electrode plane.
Figure 3-1: Upstream and downstream straight pipe diameters
A. Five pipe diameters (upstream)
B. Two pipe diameters (downstream)
C. Flow direction
3.2.3
Installations with reduced upstream and downstream straight runs are possible. In
reduced straight run installations, the meter may not meet absolute accuracy
specifications. Reported flow rates will still be highly repeatable.
Flow direction
The sensor should be mounted so that the arrow points in the direction of flow.
Figure 3-2: Flow direction arrow
3.2.4
14 Rosemount™ 8732EM Transmitter with HART Protocol Reference Manual
Sensor piping location and orientation
The sensor should be installed in a location that ensures it remains full during operation.
Depending on where it is installed, orientation must also be considered.
Reference manual Sensor Installation
00809-0100-4444 October 2018
• Vertical installation with upward process fluid flow keeps the cross-sectional area full,
regardless of flow rate.
• Horizontal installation should be restricted to low piping sections that are normally full.
Figure 3-3: Sensor orientation
3.2.5
A. Flow direction
Electrode orientation
The electrodes in the sensor are properly oriented when the two measurement electrodes
are in the 3 and 9 o’clock positions or within 45 degrees from the horizontal, as shown on
the left side of Figure 3-4. Avoid any mounting orientation that positions the top of the
sensor at 90 degrees from the vertical position as shown on the right of the Electrode
Orientation figure.
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October 2018 00809-0100-4444
Figure 3-4: Electrode orientation
A. Correct orientation
B. Incorrect orientation
The sensor may require a specific orientation to comply with Hazardous Area T-code
rating. Refer to the approrpirate reference manual for any potential restrictions.
3.3 Sensor Installation
3.3.1 Flanged sensors
Gaskets
The sensor requires a gasket at each process connection. The gasket material must be
compatible with the process fluid and operating conditions. Gaskets are required on each
side of a grounding ring (see Figure 3-5). All other applications (including sensors with
lining protectors or a grounding electrode) require only one gasket on each process
connection.
Note
Metallic or spiral-wound gaskets should not be used as they will damage the liner face of
the sensor. If spiral wound or metallic gaskets are required for the application, lining
protectors must be used.
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Reference manual Sensor Installation
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Figure 3-5: Gasket placement for flanged sensors
A. Grounding ring and gasket (optional)
B. Customer-supplied gasket
Bolts
Note
Do not bolt one side at a time. Tighten both sides simultaneously. Example:
1. Snug upstream
2. Snug downstream
3. Tighten upstream
4. Tighten downstream
Do not snug and tighten the upstream side and then snug and tighten the downstream
side. Failure to alternate between the upstream and downstream flanges when tightening
bolts may result in liner damage.
Suggested torque values by sensor line size and liner type are listed in Table 3-2 for ASME
B16.5 flanges and Table 3-3 or Table 3-4 for EN flanges. Consult the factory if the flange
rating of the sensor is not listed. Tighten flange bolts on the upstream side of the sensor in
the incremental sequence shown in Figure 3-6 to 20% of the suggested torque values.
Repeat the process on the downstream side of the sensor. For sensors with greater or
fewer flange bolts, tighten the bolts in a similar crosswise sequence. Repeat this entire
tightening sequence at 40%, 60%, 80%, and 100% of the suggested torque values.
If leakage occurs at the suggested torque values, the bolts can be tightened in additional
10% increments until the joint stops leaking, or until the measured torque value reaches
the maximum torque value of the bolts. Practical consideration for the integrity of the
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Sensor Installation Reference manual
October 2018 00809-0100-4444
liner often leads to distinct torque values to stop leakage due to the unique combinations
of flanges, bolts, gaskets, and sensor liner material.
Check for leaks at the flanges after tightening the bolts. Failure to use the correct
tightening methods can result in severe damage. While under pressure, sensor materials
may deform over time and require a second tightening 24 hours after the initial
installation.
Figure 3-6: Flange bolt torquing sequence
Prior to installation, identify the lining material of the flow sensor to ensure the suggested
torque values are applied.
Table 3-1: Lining material
Fluoropolymer liners Other liners
T - PTFE P - Polyurethane
F - ETFE N - Neoprene
A - PFA L - Linatex (Natural Rubber)
K - PFA+ D - Adiprene
Table 3-2: Suggested flange bolt torque values for Rosemount 8705 (ASME)
Size
Code
005 0.5-in. (15 mm) 8 8 N/A N /A
010 1-in. (25 mm) 8 12 6 10
015 1.5-in. (40 mm) 13 25 7 18
020 2-in. (50 mm) 19 17 14 11
025 2.5-in. (65 mm) 22 24 17 16
030 3-in. (80 mm) 34 35 23 23
040 4-in. (100 mm) 26 50 17 32
Line Size Fluoropolymer liners Other liners
Class 150
(pound-feet)
Class 300
(pound-feet)
Class 150
(pound-feet)
Class 300
(pound feet)
050 5-in. (125 mm) 36 60 25 35
060 6-in. (150 mm) 45 50 30 37
080 8-in. (200 mm) 60 82 42 55
100 10-in. (250 mm) 55 80 40 70
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Table 3-2: Suggested flange bolt torque values for Rosemount 8705 (ASME)
(continued)
Size
Code
120 12-in. (300 mm) 65 125 55 105
140 14-in. (350 mm) 85 110 70 95
160 16-in. (400 mm) 85 160 65 140
180 18-in. (450 mm) 120 170 95 150
200 20-in. (500 mm) 110 175 90 150
240 24-in. (600 mm) 165 280 140 250
300 30-in. (750 mm) 195 415 165 375
360 36-in. (900 mm) 280 575 245 525
Line Size Fluoropolymer liners Other liners
Class 150
(pound-feet)
Class 300
(pound-feet)
Class 150
(pound-feet)
Class 300
(pound feet)
Table 3-3: Suggested flange bolt torque values for Rosemount 8705 sensors with
fluoropolymer liners (EN 1092-1)
Size
code
005 0.5-in. (15 mm) N/A N/A N/A 10
010 1-in. (25 mm) N/A N/A N/A 20
Line size Fluoropolymer liners (in Newton-meters)
PN 10 PN 16 PN 25 PN 40
015 1.5-in. (40 mm) N/A N/A N/A 50
020 2-in. (50 mm) N/A N/A N/A 60
025 2.5-in. (65 mm) N/A N/A N/A 50
030 3-in. (80 mm) N/A N/A N/A 50
040 4-in. (100 mm) N/A 50 N/A 70
050 5.0-in. (125 mm) N/A 70 N/A 100
060 6-in. (150mm) N/A 90 N/A 130
080 8-in. (200 mm) 130 90 130 170
100 10-in. (250 mm) 100 130 190 250
120 12-in. (300 mm) 120 170 190 270
140 14-in. (350 mm) 160 220 320 410
160 16-in. (400 mm) 220 280 410 610
180 18-in. (450 mm) 190 340 330 420
200 20-in. (500 mm) 230 380 440 520
240 24-in. (600 mm) 290 570 590 850
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Sensor Installation Reference manual
October 2018 00809-0100-4444
Table 3-4: Suggested flange bolt torque values for Rosemount 8705 sensors with
non-fluoropolymer liners (EN 1092-1)
Size
Code
005 0.5-in. (15 mm) N/A N/A N/A 20
010 1-in. (25 mm) N/A N/A N/A 30
015 1.5-in. (40 mm) N/A N/A N/A 40
020 2-in. (50 mm) N/A N/A N/A 30
025 2.5-in. (65 mm) N/A N/A N/A 35
030 3-in. (80 mm) N/A N/A N/A 30
040 4-in. (100 mm) N/A 40 N/A 50
050 5.0-in. (125 mm) N/A 50 N/A 70
060 6-in. (150mm) N/A 60 N/A 90
080 8-in. (200 mm) 90 60 90 110
100 10-in. (250 mm) 70 80 130 170
120 12-in. (300 mm) 80 110 130 180
140 14-in. (350 mm) 110 150 210 288
160 16-in. (400 mm) 150 190 280 410
180 18-in. (450 mm) 130 230 220 280
Line Size Non-fluoropolymer liners (in Newton-meters)
PN 10 PN 16 PN 25 PN 40
200 20-in. (500 mm) 150 260 300 350
240 24-in. (600 mm) 200 380 390 560
3.3.2 Wafer sensors
When installing wafer sensors, there are several components that must be included and
requirements that must be met.
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Figure 3-7: Wafer sensors installation components and assembly requirements
A. Ground ring (optional)
B. Customer supplied gaskets
C. Spacer installation (horizontal meters)
D. Spacer installation (vertical meters)
E. O-ring
F. Installation studs, nuts, and washers (optional)
G. Wafer alignment spacer
H. Flow
Gaskets
The sensor requires a gasket at each process connection. The gasket material selected
must be compatible with the process fluid and operating conditions. Gaskets are required
on each side of a grounding ring. See Figure 3-7.
Note
Metallic or spiral-wound gaskets should not be used as they will damage the liner face of
the sensor.
Alignment spacers
On 1.5 inch through 8 inch (40 through 200 mm) line sizes, Rosemount requires installing
the alignment spacers to ensure proper centering of the wafer sensor between the process
flanges. To order an Alignment Spacer Kit (quantity 3 spacers) use p/n 08711-3211-xxxx
where xxxx equals the dash number shown in Table 3-5.
Table 3-5: Rosemount alignment spacers
Dash-no. (-xxxx) Line size Flange rating
(in) (mm)
0A15 1.5 40 JIS 10K-20K
0A20 2 50 JIS 10K-20K
0A30 3 80 JIS 10K
0B15 1.5 40 JIS 40K
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Table 3-5: Rosemount alignment spacers (continued)
Dash-no. (-xxxx) Line size Flange rating
(in) (mm)
AA15 1.5 40 ASME- 150#
AA20 2 50 ASME - 150#
AA30 3 80 ASME - 150#
AA40 4 100 ASME - 150#
AA60 6 150 ASME - 150#
AA80 8 200 ASME - 150#
AB15 1.5 40 ASME - 300#
AB20 2 50 ASME - 300#
AB30 3 80 ASME - 300#
AB40 4 100 ASME - 300#
AB60 6 150 ASME - 300#
AB80 8 200 ASME - 300#
DB40 4 100 EN 1092-1 - PN10/16
DB60 6 150 EN 1092-1 - PN10/16
DB80 8 200 EN 1092-1 - PN10/16
DC80 8 200 EN 1092-1 - PN25
DD15 1.5 40 EN 1092-1 - PN10/16/25/40
DD20 2 50 EN 1092-1 - PN10/16/25/40
DD30 3 80 EN 1092-1 - PN10/16/25/40
DD40 4 100 EN 1092-1 - PN25/40
DD60 6 150 EN 1092-1 - PN25/40
DD80 8 200 EN 1092-1 - PN40
RA80 8 200 AS40871-PN16
RC20 2 50 AS40871-PN21/35
RC30 3 80 AS40871-PN21/35
RC40 4 100 AS40871-PN21/35
RC60 6 150 AS40871-PN21/35
RC80 8 200 AS40871-PN21/35
Studs
Wafer sensors require threaded studs. See Figure 3-8 for torque sequence. Always check
for leaks at the flanges after tightening the flange bolts. All sensors require a second
tightening 24 hours after initial flange bolt tightening.
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Table 3-6: Stud specifications
Nominal sensor size Stud specifications
0.15–1-in. (4–25 mm) 316 SST ASTM A193, Grade B8M, Class 1
threaded mounted studs
1½–8-in. (40–200 mm) CS, ASTM A193, Grade B7, threaded mounting
studs
Figure 3-8: Flange bolt torquing sequence
Installation
Procedure
1. Insert studs for the the bottom side of the sensor between the pipe flanges and
center the alignment spacer in the middle of the stud. See Figure 3-7 for the bolt
hole locations recommended for the spacers provided. Stud specifications are listed
in Table 3-6.
2. Place the sensor between the flanges. Make sure the alignment spacers are properly
centered on the studs. For vertical flow installations slide the o-ring over the stud to
keep the spacer in place. See Figure 3-7. Ensure the spacers match the flange size
and class rating for the process flanges. See Table 3-5.
3. Insert the remaining studs, washers, and nuts.
4. Tighten to the torque specifications shown in Table 3-7. Do not over-tighten the
bolts or the liner may be damaged.
Table 3-7: Rosemount 8711 torque specifications
Size code Line size Pound-feet Newton-meter
015 1.5-in. (40 mm) 15 20
020 2-in. (50 mm) 25 34
030 3-in. (80 mm) 40 54
040 4-in. (100 mm) 30 41
060 6-in. (150 mm) 50 68
080 8-in. (200 mm) 70 95
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3.3.3 Sanitary senors
Gaskets
The sensor requires a gasket at each of its connections to adjacent devices or piping. The
gasket material selected must be compatible with the process fluid and operating
conditions.
Note
Gaskets are supplied between the IDF fitting and the process connection fitting, such as a
Tri-Clamp fitting, on all Rosemount 8721 Sanitary sensors except when the process
connection fittings are not supplied and the only connection type is an IDF fitting.
Alignment and bolting
Standard plant practices should be followed when installing a magmeter with sanitary
fittings. Unique torque values and bolting techniques are not required.
Figure 3-9: Sanitary sensor gasket and clamp alignment
A. User supplied clamp
B. User supplied gasket
3.4 Process reference connection
The figures shown in this chapter illustrate process reference connections only. Earth
safety ground is also required as part of this installation, but is not shown in the figures.
Follow national, local, and plant electrical codes for safety ground.
Use the Process reference options table to determine which process reference option to
follow for proper installation.
Table 3-8: Process reference options
Type of pipe Grounding
straps
Conductive
unlined pipe
24 Rosemount™ 8732EM Transmitter with HART Protocol Reference Manual
See Figure 3-10 See Figure 3-11 See Figure 3-13 See Figure 3-11
Grounding rings Reference
electrode
Lining protectors
Reference manual Sensor Installation
00809-0100-4444 October 2018
Table 3-8: Process reference options (continued)
Type of pipe Grounding
straps
Conductive lined
pipe
Non-conductive
pipe
Insufficient
grounding
Insufficient
grounding
Grounding rings Reference
electrode
See Figure 3-11 See Figure 3-10 See Figure 3-11
See Figure 3-12 Not
recommended
Lining protectors
See Figure 3-12
Note
For line sizes 10-inch and larger the ground strap may come attached to the sensor body
near the flange. See Figure 3-14.
Figure 3-10: Grounding straps in conductive unlined pipe or reference electrode in
lined pipe
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Sensor Installation Reference manual
October 2018 00809-0100-4444
Figure 3-11: Grounding with grounding rings or lining protectors in conductive pipe
A. Grounding rings or lining protectors
Figure 3-12: Grounding with grounding rings or lining protectors in non-conductive
pipe
A. Grounding rings or lining protectors
26 Rosemount™ 8732EM Transmitter with HART Protocol Reference Manual
Reference manual Sensor Installation
00809-0100-4444 October 2018
Figure 3-13: Grounding with reference electrode in conductive unlined pipe
Figure 3-14: Grounding for line sizes 10-in. and larger
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Sensor Installation Reference manual
October 2018 00809-0100-4444
28 Rosemount™ 8732EM Transmitter with HART Protocol Reference Manual
Reference manual Remote Transmitter Installation
00809-0100-4444 October 2018
4 Remote Transmitter Installation
This chapter provides instructions for installing and wiring a remotely mounted
transmitter.
Related concepts
Sensor Installation
4.1 Pre-installation
Before installing the transmitter, there are several pre-installation steps that should be
completed to make the installation process easier:
• Identify options and configurations that apply to your application
• Set the hardware switches if necessary
• Consider mechanical, electrical, and environmental requirements
Note
Refer to Product Specifications for more detailed requirements.
Identify options and configurations
The typical transmitter installation includes a device power connection, a 4-20mA output
connection, and sensor coil and electrode connections. Other applications may require
one or more of the following configurations or options
• Pulse output
• Discrete input/discrete output
• HART multidrop configuration
Hardware switches
The transmitter may have up to four user-selectable hardware switches. These switches
set the alarm mode, internal/external analog power, internal/external pulse power, and
transmitter security. The standard configuration for these switches when shipped from the
factory is as follows:
Table 4-1: Hardware switch default settings
Setting Factory configuration
Alarm mode High
Internal/external analog power Internal
Internal/external pulse power External
Transmitter security Off
The analog power switch and pulse power switches are not available when ordered with
intrinsically safe output, ordering code B.
In most cases, it is not necessary to change the setting of the hardware switches. If the
switch settings need to be changed, refer to Hardware switches.
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Remote Transmitter Installation Reference manual
October 2018 00809-0100-4444
Be sure to identify any additional options and configurations that apply to the installation.
Keep a list of these options for consideration during the installation and configuration
procedures.
Mechanical considerations
The mounting site for the transmitter should provide enough room for secure mounting,
easy access to conduit entries, full opening of the transmitter covers, and easy readability
of the Local Operator Interface (LOI) screen (if equipped).
Figure 4-1: Rosemount 8732EM Dimensional Drawing
7.49
[190,0]
6.48
[164,6]
A
3.07
[78,0]
8.81
[224,0]
B
10.5
[130]
5.0
[128]
1.94
[49,0]
3.00
[76,2]
2.71
[76,2]
5.0
[128]
A
11.02
[280.0]
6.48
[164,6]
5.82
[148,0]
1.97
[50,0]
A. Conduit entry
½–14 NPT or M20
2.71
[68,8]
C
B. LOI cover
C. Mounting screws
Electrical considerations
Before making any electrical connections to the transmitter, consider national, local, and
plant electrical installation requirements. Be sure to have the proper power supply,
conduit, and other accessories necessary to comply with these standards.
The transmitter requires external power. Ensure access to a suitable power source.
Table 4-2: Electrical Data
Rosemount 8732EM Flow Transmitter
Power input AC power:
90–250VAC, 0.45A, 40VA
30 Rosemount™ 8732EM Transmitter with HART Protocol Reference Manual
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