Rosemount 8782 Operating Manual
Reference Manual
00809-0100-8782, Rev AA
Rosemount® 8782 Slurry Magnetic Flow
Meter Transmitter with HART Protocol
November 2019
2
Reference Manual Contents
00809-0100-8782 November 2019
Contents
Chapter 1 Hazard messages........................................................................................................... 7
1.1 Safety messages...............................................................................................................................8
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..................................................................................................................... 14
3.3 Sensor Installation.......................................................................................................................... 17
3.4 Process reference connection.........................................................................................................20
Chapter 4 Remote Transmitter Installation...................................................................................25
4.1 Pre-installation............................................................................................................................... 25
4.2 Transmitter symbols.......................................................................................................................28
4.3 Mounting....................................................................................................................................... 28
4.4 Wiring............................................................................................................................................ 29
Chapter 5 Basic Configuration...................................................................................................... 41
5.1 Basic Setup..................................................................................................................................... 41
5.2 Local operator interface (LOI)......................................................................................................... 42
5.3 Other configuration tools............................................................................................................... 42
5.4 Measurement units........................................................................................................................ 42
Chapter 6 Advanced installation details........................................................................................45
6.1 Hardware switches......................................................................................................................... 45
6.2 Pulse output and discrete input/outputs........................................................................................ 47
6.3 Coil housing configuration............................................................................................................. 56
Chapter 7 Operation.................................................................................................................... 61
7.1 Introduction................................................................................................................................... 61
7.2 Local operator interface (LOI)......................................................................................................... 61
Chapter 8 Advanced Configuration Functionality......................................................................... 69
8.1 Introduction................................................................................................................................... 69
8.2 Configure outputs.......................................................................................................................... 69
8.3 Configure HART..............................................................................................................................81
8.4 Configure LOI/Display.....................................................................................................................84
8.5 Additional parameters....................................................................................................................85
8.6 Configure special units................................................................................................................... 87
Chapter 9 Advanced Diagnostics Configuration............................................................................89
Reference Manual iii
Contents Reference Manual
November 2019 00809-0100-8782
9.1 Introduction................................................................................................................................... 89
9.2 Meter factors..................................................................................................................................90
9.3 Licensing and enabling................................................................................................................... 90
9.4 Tunable empty pipe detection........................................................................................................91
9.5 Electronics temperature................................................................................................................. 92
9.6 Ground/wiring fault detection........................................................................................................ 93
9.7 High process noise detection..........................................................................................................94
9.8 Coated electrode detection............................................................................................................95
9.9 4-20 mA loop verification............................................................................................................... 96
9.10 Smart Meter Verification.............................................................................................................. 98
9.11 Run commanded Smart Meter Verification.................................................................................100
9.12 Continuous Smart Meter Verification......................................................................................... 101
9.13 Smart Meter Verification test results.......................................................................................... 102
9.14 Smart Meter Verification measurements.................................................................................... 103
9.15 Optimizing the Smart Meter Verification.................................................................................... 105
Chapter 10 Digital Signal Processing............................................................................................ 107
10.1 Introduction............................................................................................................................... 107
10.2 Process noise profiles................................................................................................................. 107
10.3 High process noise diagnostic.................................................................................................... 107
10.4 Optimizing flow reading in noisy applications.............................................................................108
10.5 Explanation of signal processing algorithm.................................................................................111
Chapter 11 Maintenance..............................................................................................................115
11.1 Introduction............................................................................................................................... 115
11.2 Safety information......................................................................................................................115
11.3 Installing a LOI/Display............................................................................................................... 116
11.4 Replacing a terminal block socket module..................................................................................117
11.5 Replacing a terminal block with amp clips.................................................................................. 118
11.6 Trims..........................................................................................................................................119
Chapter 12 Troubleshooting........................................................................................................ 123
12.1 Introduction............................................................................................................................... 123
12.2 Safety information......................................................................................................................123
12.3 Installation check and guide....................................................................................................... 124
12.4 Diagnostic messages..................................................................................................................125
12.5 Basic troubleshooting.................................................................................................................135
12.6 Sensor troubleshooting.............................................................................................................. 140
12.7 Installed sensor tests.................................................................................................................. 142
12.8 Uninstalled sensor tests..............................................................................................................144
12.9 Technical support and service.....................................................................................................146
Appendix A Product Specifications................................................................................................149
A.1 Rosemount 8782 Slurry Magnetic Flow Meter Platform Specifications......................................... 149
iv Rosemount® 8782 Slurry Magnetic Flow Meter Transmitter with HART Protocol
Reference Manual Contents
00809-0100-8782 November 2019
A.2 Transmitter specifications............................................................................................................ 153
A.3 MS Sensor Specifications..............................................................................................................160
A.4 8785 Reference Calibration Standard........................................................................................... 165
Appendix B Product Certifications................................................................................................ 167
Appendix C Wiring Diagrams........................................................................................................ 169
C.1 Wiring sensor to transmitter........................................................................................................ 169
C.2 775 Smart Wireless THUM™ Adapter wiring diagrams...................................................................170
C.3 Field Communicator wiring diagrams...........................................................................................172
Reference Manual v
Contents Reference Manual
November 2019 00809-0100-8782
vi Rosemount® 8782 Slurry Magnetic Flow Meter Transmitter with HART Protocol
Reference Manual Hazard messages
00809-0100-8782 November 2019
1 Hazard messages
This document uses the following criteria for hazard messages based on ANSI standards
Z535.6-2011 (R2017).
DANGER
Serious injury or death will occur if a hazardous situation is not avoided.
WARNING
Serious injury or death could occur if a hazardous situation is not avoided.
CAUTION
Minor or moderate injury will or could occur if a hazardous situation is not avoided.
NOTICE
Data loss, property damage, hardware damage, or software damage can occur if a
situation is not avoided. There is no credible risk of physical injury.
Physical access
NOTICE
Unauthorized personnel can potentially cause significant damage and/or misconfiguration
of end users' equipment. Protect against all intentional or unintentional unauthorized use.
Physical security is an important part of any security program and fundamental to
protecting your system. Restrict physical access to protect users' assets. This is true for all
systems used within the facility.
Reference Manual 7
Hazard messages Reference Manual
November 2019 00809-0100-8782
1.1 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 components. 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 Safety Data Sheet (SDS) 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 Emerson nuclear-qualified products, contact your local sales
representative.
8 Rosemount® 8782 Slurry Magnetic Flow Meter Transmitter with HART Protocol
Reference Manual Hazard messages
00809-0100-8782 November 2019
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.
• 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.
• Flow meters 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 flow meter 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.
• Flow meters 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 flow meter with a dry cloth or clean with solvents.
NOTICE
Damage hazards
Failure to follow these instructions could result in damage or destruction of equipment.
• 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
Reference Manual 9
Hazard messages Reference Manual
November 2019 00809-0100-8782
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 stated 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 flow tube sensor or to the
transmitter coil excitation circuit.
10 Rosemount® 8782 Slurry Magnetic Flow Meter Transmitter with HART Protocol
Reference Manual Introduction
00809-0100-8782 November 2019
2 Introduction
2.1 System description
The flowmeter consists of a sensor and a transmitter. The sensor is installed in-line with
the process piping; the transmitter is remotely mounted away from the sensor.
Figure 2-1: 8782 transmitter
Figure 2-2: MS sensor
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 2-3.
Reference Manual 11
Introduction Reference Manual
November 2019 00809-0100-8782
Figure 2-3: Sensor cross section
A. Electrode
B. Coils
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.
12 Rosemount® 8782 Slurry Magnetic Flow Meter Transmitter with HART Protocol
Reference Manual Sensor Installation
00809-0100-8782 November 2019
3 Sensor Installation
This chapter provides instructions for handling and installing the flow sensor with a
remotely 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 flange sealing surfaces
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 safety
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.
Reference Manual 13
Sensor Installation Reference Manual
November 2019 00809-0100-8782
3.1.1 Lifting lugs
CAUTION
If provided, use the lifting lugs on each flange to handle the flow meter when it is
transported and lowered into place at the installation site. If lifting lugs are not
provided, the flow meter must be supported with a lifting sling on each side of the
housing.
• Standard pressure 3 inch through 36 inch flanged magnetic flowmeters come with
lifting lugs.
• High pressure (above 600#) 3 inch through 24 inch flanged magnetic flow meters
come with lifting lugs.
Figure 3-1: Example lifting without and with lifting lugs
A. Without lifting lugs
B. With lifting lugs
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:
• Tropical/desert installations in direct sunlight
• Outdoor installations in arctic climates
3.2.2
Upstream and downstream piping
To ensure specified accuracy over widely varying process conditions, it is recommended to
install the sensor with a minimum of five straight pipe diameters upstream and two pipe
diameters downstream from the electrode plane.
14 Rosemount® 8782 Slurry Magnetic Flow Meter Transmitter with HART Protocol
Reference Manual Sensor Installation
00809-0100-8782 November 2019
Figure 3-2: Upstream and downstream straight pipe diameters
3.2.3
A
C
A. Five pipe diameters (upstream)
B. Two pipe diameters (downstream)
C. Flow direction
Installations with reduced upstream and downstream straight runs are possible. In
reduced straight run installations, the meter may not meet accuracy specifications.
Reported flow rates will still be highly repeatable.
B
Flow direction
The sensor should be mounted so that the arrow points in the direction of flow.
Figure 3-3: Flow direction arrow
3.2.4
Reference Manual 15
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.
• 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.
Sensor Installation Reference Manual
November 2019 00809-0100-8782
Figure 3-4: 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 3-5. Avoid any mounting orientation that positions the top of the
sensor at 90 degrees from the vertical position as shown on the right of Figure 3-5.
Figure 3-5: Electrode orientation
A
B
A. Correct orientation
B. Incorrect orientation
16 Rosemount® 8782 Slurry Magnetic Flow Meter Transmitter with HART Protocol
Reference Manual Sensor Installation
00809-0100-8782 November 2019
The sensor may require a specific orientation to comply with Hazardous Area T-code
rating. Refer to the appropriate 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 3-6). 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.
Figure 3-6: Gasket placement for flanged sensors
A
B
A. Grounding ring and gasket (optional)
B. Customer-supplied gasket
Reference Manual 17
Sensor Installation Reference Manual
November 2019 00809-0100-8782
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 3-7 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
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 3-7: Flange bolt torquing sequence
8
1
4
6
2
5
3
7
Prior to installation, identify the lining material of the flow sensor to ensure the suggested
torque values are applied.
18 Rosemount® 8782 Slurry Magnetic Flow Meter Transmitter with HART Protocol
Reference Manual Sensor Installation
00809-0100-8782 November 2019
Table 3-1: Lining material
Fluoropolymer liners Other liners
T - PTFE P - Polyurethane
K - PFA+ N - Neoprene
L - Linatex (Natural Rubber)
D - Adiprene
Table 3-2: Suggested flange bolt torque values for Rosemount MS (ASME) sensors
Size
code
030 3 inch (80 mm) 34 35 23 23
040 4 inch (100 mm) 26 50 17 32
060 6 inch (150 mm) 45 50 30 37
080 8 inch (200 mm) 60 82 42 55
100 10 inch (250 mm) 55 80 40 70
120 12 inch (300 mm) 65 125 55 105
140 14 inch (350 mm) 85 110 70 95
160 16 inch (400 mm) 85 160 65 140
180 18 inch (450 mm) 120 170 95 150
200 20 inch (500 mm) 110 175 90 150
240 24 inch (600 mm) 165 280 140 250
300 30 inch (750 mm) 195 415 165 375
360 36 inch (900 mm) 280 575 245 525
Line size Fluoropolymer liners Other liners
Class 150 (lb‑ft) Class 300 (lb‑ft) Class 150 (lb‑ft) Class 300 (pound
feet)
Table 3-3: Suggested flange bolt torque values for Rosemount MS sensors with fluoropolymer liners
(EN 1092-1)
Size
code
030 3 inch (80 mm) N/A N/A N/A 50
040 4 inch (100 mm) N/A 50 N/A 70
060 6 inch (150mm) N/A 90 N/A 130
Reference Manual 19
Line size Fluoropolymer liners (in Newton-meters)
PN 10 PN 16 PN 25 PN 40
Sensor Installation Reference Manual
November 2019 00809-0100-8782
Table 3-3: Suggested flange bolt torque values for Rosemount MS sensors with fluoropolymer liners
(EN 1092-1) (continued)
Size
code
080 8 inch (200 mm) 130 90 130 170
100 10 inch (250 mm) 100 130 190 250
120 12 inch (300 mm) 120 170 190 270
140 14 inch (350 mm) 160 220 320 410
160 16 inch (400 mm) 220 280 410 610
180 18 inch (450 mm) 190 340 330 420
200 20 inch (500 mm) 230 380 440 520
240 24 inch (600 mm) 290 570 590 850
Line size Fluoropolymer liners (in Newton-meters)
PN 10 PN 16 PN 25 PN 40
Table 3-4: Suggested flange bolt torque values for Rosemount MS sensors with non-fluoropolymer
liners (EN 1092-1)
Size
code
030 3 inch (80 mm) N/A N/A N/A 30
040 4 inch (100 mm) N/A 40 N/A 50
060 6 inch (150mm) N/A 60 N/A 90
Line size Non-fluoropolymer liners (in Newton-meters)
PN 10 PN 16 PN 25 PN 40
080 8 inch (200 mm) 90 60 90 110
100 10 inch (250 mm) 70 80 130 170
120 12 inch (300 mm) 80 110 130 180
140 14 inch (350 mm) 110 150 210 288
160 16 inch (400 mm) 150 190 280 410
180 18 inch (450 mm) 130 230 220 280
200 20 inch (500 mm) 150 260 300 350
240 24 inch (600 mm) 200 380 390 560
3.4 Process reference connection
The figures shown in this section illustrate best practice installations for process reference
connections only. For installations in conductive, unlined pipe it may be acceptable to use
one ground ring or one lining protector to establish a process reference connection. 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 Table 3-5 to determine which process reference option to follow for proper
installation.
20 Rosemount® 8782 Slurry Magnetic Flow Meter Transmitter with HART Protocol
Reference Manual Sensor Installation
00809-0100-8782 November 2019
Table 3-5: Process reference options
Type of pipe Grounding
straps
Conductive
unlined pipe
Conductive lined
pipe
Non-conductive
pipe
See Figure 3-8 See Figure 3-9 See Figure 3-11 See Figure 3-9
Insufficient
grounding
Insufficient
grounding
Grounding rings Reference
electrode
See Figure 3-9 See Figure 3-8 See Figure 3-9
See Figure 3-10 Not
recommended
Lining protectors
See Figure 3-10
Note
For line sizes 10-inch and larger the ground strap may come attached to the sensor body
near the flange. See Figure 3-12.
Figure 3-8: Grounding straps in conductive unlined pipe or reference electrode in
lined pipe
Reference Manual 21
Sensor Installation Reference Manual
November 2019 00809-0100-8782
Figure 3-9: Grounding with grounding rings or lining protectors in conductive pipe
A. Grounding rings or lining protectors
Figure 3-10: Grounding with grounding rings or lining protectors in non-conductive
pipe
A. Grounding rings or lining protectors
22 Rosemount® 8782 Slurry Magnetic Flow Meter Transmitter with HART Protocol
Reference Manual Sensor Installation
00809-0100-8782 November 2019
Figure 3-11: Grounding with reference electrode in conductive unlined pipe
Figure 3-12: Grounding for line sizes 10-in. and larger
Reference Manual 23
Sensor Installation Reference Manual
November 2019 00809-0100-8782
24 Rosemount® 8782 Slurry Magnetic Flow Meter Transmitter with HART Protocol
Reference Manual Remote Transmitter Installation
00809-0100-8782 November 2019
4 Remote Transmitter Installation
This chapter provides instructions for installing and wiring a remotely mounted
transmitter.
Related information
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
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.
Reference Manual 25
Remote Transmitter Installation Reference Manual
November 2019 00809-0100-8782
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 8782 Dimensional Drawing
9.0
(229)
(71)
2.8
(79)
3.1
C
12.0
(306)
11.2
(283)
D
(89)
3.5
A. Conduit entry,
½–14 NPT (4 places)
B. Ground lug
C. LOI keypad cover
D. Lower cover opens for electrical connections
Note
Dimensions are in inches (Millimeters)
17.7
(449)
11.4
(49)
1.9
1.7
1.9
(43)
(49)
(289)
A
B
3.9
(99)
7.8
(198)
(40)
1.6
26 Rosemount® 8782 Slurry Magnetic Flow Meter Transmitter with HART Protocol
Reference Manual Remote Transmitter Installation
00809-0100-8782 November 2019
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
Electrical data
Power input AC power:
90–250 VAC ( ), 1.5A, 120 VA
Standard DC power:
12–42 VDC ( ), 8.6 A, 120 W
Pulsed circuit Internally powered (Active): Outputs up to
12 VDC, 12.1 mA, 73 mW
Externally powered (Passive): Input up to
28 VDC, 100 mA, 1 W
4-20mA output circuit Internally Powered (Active): Outputs up to
25 mA, 24 VDC, 600 mW
Externally Powered (Passive): Input up to 25 mA,
30 VDC, 750 mW
Um 250 V
Coil excitation output 2.0 A, 85 V max, 80 W max
Environmental considerations
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.
Table 4-3: Transmitter housing environmental ratings
Type Rating
Ingress protection IP66, IP69
NEMA 4X
Pollution Degree 2
Maximum altitude rating • 13,123 ft (4000 m) at rated input power
voltage (90–250 VAC)
• 16,404 ft (5000 m) at maximum input
power voltage of 150 VAC
Note
For complete environmental and other specifications, see Product Specifications.
Reference Manual 27
Remote Transmitter Installation Reference Manual
November 2019 00809-0100-8782
4.2 Transmitter symbols
Caution symbol — check product
documentation for details
Protective conductor (grounding) terminal
4.3 Mounting
Wall mount transmitters are shipped with mounting hardware for use on a 2 inch (50 mm)
pipe or flat surface.
Figure 4-2: Mounting bracket
B
A. U-bolt
B. Fasteners
A
B
A
B
B
4.3.1
28 Rosemount® 8782 Slurry Magnetic Flow Meter Transmitter with HART Protocol
Pipe mounting
1. Assemble the hardware and transmitter housing on the pole as shown in Figure 4-2.
2. Tighten the nuts to ensure a snug fit.
Reference Manual Remote Transmitter Installation
00809-0100-8782 November 2019
4.3.2 Surface mounting
Attach the transmitter to the mounting location using customer supplied mounting
screws. The installation of the transmitter shall be rated for four (4) times the weight of
the transmitter or 44lbs (20kgs).
4.4 Wiring
4.4.1 Conduit entries and connections
Transmitter conduit entries ports are ½"-14NPT as standard, M20 conduit connections will
use an adapter. Conduit connections should be made in accordance with national, local,
and plant electrical codes. Unused conduit entries should be sealed with the appropriate
certified plugs. The plastic shipping plugs do not provide ingress protection.
4.4.2
Conduit requirements
• For installations with an intrinsically safe electrode circuit, a separate conduit for the
coil cable and the electrode cable may be required. Refer to Product
Certifications.Refer to the product reference manual.
• For installations with non-intrinsically safe electrode circuit, a single dedicated conduit
run for the coil drive and electrode cable between the sensor and the remote
transmitter may be acceptable. Removal of the barriers for intrinsic safety isolation is
permitted for non-intrinsically safe electrode installations.
• Bundled cables from other equipment in a single conduit are likely to create
interference and noise in the system. See Figure 4-3.
• Electrode cables should not be run together in the same cable tray with power cables.
• Output cables should not be run together with power cables.
• Select conduit size appropriate to feed cables through to the flowmeter.
Reference Manual 29
Remote Transmitter Installation Reference Manual
November 2019 00809-0100-8782
Figure 4-3: Best practice conduit preparation
4.4.3
A
C D E
B
A
A
A. Safety ground
B. Power
C. Coil
D. Output
E. Electrode
Sensor to transmitter wiring
Remote cable kits can be ordered directly using the kit numbers shown in Table 4-4 and
Table 4-5. Equivalent Alpha cable part numbers are also provided as an alternative. To
order cable, specify length as quantity desired. Equal length of component cables is
required.
Examples:
• 25 feet = Qty (25) 08732-0065-0001
• 25 meters = Qty (25) 08732-0065-0002
Table 4-4: Component cable kits - standard temperature (-20°C to 75°C)
Cable kit # Description Individual cable Alpha p/n
08732-0065-0001 (feet) Kit, component cables, Std temp
(includes Coil and Electrode)
08732-0065-0002 (meters) Kit, component cables, Std temp
(includes Coil and Electrode)
30 Rosemount® 8782 Slurry Magnetic Flow Meter Transmitter with HART Protocol
Coil
Electrode
Coil
Electrode
2442C
2413C
2442C
2413C
Loading...