Emerson Rosemount 8782 User manual

Quick Start Guide
00825-0100-8782, Rev AA
November 2019
Rosemount™ 8782 Slurry Magnetic Flow
Meter Transmitter

1 Safety
WARNING
•Failure to follow these installation guidelines could result in serious injury
or death.
•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.
•Potential electrostatic charging hazard: Rosemount Magnetic 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.
•Verify that the operating environment of the sensor and transmitter is
consistent with the appropriate Agency Approval.
•If installed in an explosive atmosphere, verify that the device certification
and installation techniques are suitable for that particular environment.
•To prevent ignition of flammable or combustible atmosphere,
disconnect power before servicing circuits.
•Explosion hazard: Do not disconnect equipment when a flammable or
combustible atmosphere is present.
•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.
•Shock hazard: Shut off power before servicing. Do not operate without
power compartment cover.
CAUTION
•In cases where high voltage/high current are present near the meter
installation, ensure proper protection methods are followed to prevent
stray voltage/current 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.
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2 Introduction
This document provides basic installation guidelines for the Rosemount
8782 Magnetic Slurry wall-mount transmitter.
•For sensor installation refer to the Rosemount™ MS Magnetic Slurry Flow
Meter Sensor Quick Installation Guide
•For additional installation information, configuration, maintenance, and
troubleshooting, refer to the Rosemount™ 8782 Magnetic Slurry Flow
Meter with HART Protocol Reference Manual
All user documentation can be found at www.emerson.com. For more
contact information see Emerson Flow customer service.
2.1 Return policy
Emerson procedures must be followed when returning equipment. These
procedures ensure legal compliance with government transportation
agencies and help provide a safe working environment for Emerson
employees. Failure to follow Emerson procedures will result in your
equipment being refused delivery.
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2.2 Emerson Flow customer service
Email:
•Worldwide: [email protected]
•Asia-Pacific: [email protected]
Telephone:
North and South America Europe and Middle East Asia Pacific
United States 800 522 6277 U.K. 0870 240
1978
Australia 800 158 727
Canada +1 303 527
5200
The
Netherlands
+31 (0) 704
136 666
New Zealand 099 128 804
Mexico +41 (0) 41
7686 111
France 0800 917 901 India 800 440 1468
Argentina [phone]
7000
Germany 0800 182
5347
Pakistan 888 550 2682
Brazil [phone]
8000
Italy 8008 77334 China [phone]
9000
Venezuela [phone]
3446
Central &
Eastern
+41 (0) 41
7686 111
Japan +81 3 5769
6803
Russia/CIS +7 495 995
9559
South Korea +82 2 3438
4600
Egypt 0800 000
0015
Singapore +65 6 777
8211
Oman 800 70101 Thailand 001 800 441
6426
Qatar 431 0044 Malaysia 800 814 008
Kuwait 663 299 01
South Africa 800 991 390
Saudi Arabia 800 844 9564
UAE 800 0444
0684
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3 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 the product reference manual 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 3-1: 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 the product
reference manual.
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.
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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).
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Figure 3-1: Rosemount 8782 Dimensional Drawing
D
B
A
C
9.0
(229)
2.8
(71)
3.1
(79)
3.5
(89)
12.0
(306)
17.7
(449)
11.4
(289)
1.6
(40)
3.9
(99)
1.9
(49)
1.7
(43)
1.9
(49)
7.8
(198)
11.2
(283)
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)
Electrical considerations
Before making any electrical connections to the transmitter, consider
national, local, and plant electrical installation requirements. Be sure to have
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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 3-2: 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 3-3: 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, refer to the product
reference manual.
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4 Mounting
Wall mount transmitters are shipped with mounting hardware for use on a
2 inch (50 mm) pipe or flat surface.
Figure 4-1: Mounting bracket
A
A
B
B
B
B
A. U-bolt
B. Fasteners
4.1 Pipe mounting
1. Assemble the hardware and transmitter housing on the pole as
shown in Figure 4-1.
2. Tighten the nuts to ensure a snug fit.
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4.2 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).
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5 Wiring
5.1 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.
5.2 Conduit requirements
•For installations with an intrinsically safe electrode circuit, a separate
conduit for the coil cable and the electrode cable may be required.
•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 5-1.
•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.
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Figure 5-1: Best practice conduit preparation
AA
A
B
C D E
A. Safety ground
B. Power
C. Coil
D. Output
E. Electrode
5.3 Sensor to transmitter wiring
Remote cable kits can be ordered directly using the kit numbers shown in
Table 5-1 and Table 5-2. 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
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Table 5-1: 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)
Coil
Electrode
2442C
2413C
08732-0065-0002 (meters) Kit, component cables, Std
temp (includes Coil and
Electrode)
Coil
Electrode
2442C
2413C
08732-0065-0003 (feet) Kit, component cables, Std
temp (includes Coil and I.S.
Electrode)
Coil
Instrinsically
Safe Blue
Electrode
2442C
Not available
08732-0065-0004 (meters) Kit, component cables, Std
temp (includes Coil and I.S.
Electrode)
Coil
Instrinsically
Safe Blue
Electrode
2442C
Not available
Table 5-2: Component cable kits - extended temperature (-50°C to 125°C)
Cable kit # Description Individual
cable
Alpha p/n
08732-0065-1001 (feet) Kit, Component Cables, Ext
Temp. (includes Coil and
Electrode)
Coil
Electrode
Not available
Not available
08732-0065-1002 (meters) Kit, Component Cables, Ext
Temp. (includes Coil and
Electrode)
Coil
Electrode
Not available
Not available
08732-0065-1003 (feet) Kit, Component Cables, Ext
Temp. (includes Coil and I.S.
Electrode)
Coil
Intrinsically
Safe Blue
Electrode
Not available
Not available
08732-0065-1004 (meters) Kit, Component Cables, Ext
Temp. (includes Coil and I.S.
Electrode)
Coil
Intrinsically
Safe Blue
Electrode
Not available
Not available
Cable requirements
Shielded twisted pairs or triads must be used. See Figure 5-2. Cable lengths
should be limited to less than 300 feet (100 m).
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Figure 5-2: Individual component cables
1 2 3317 18 19
DG
C
E
F
A B
A. Coil drive
B. Electrode
C. Twisted, stranded, insulated 14 AWG conductors
D. Drain
E. Overlapping foil shield
F. Outer jacket
G. Twisted, stranded, insulated 20 AWG conductors
•1 = Red
•2 = Blue
•3 = Drain
•17 = Black
•18 = Yellow
•19 = White
Cable preparation
Prepare the ends of the coil drive and electrode cables as shown in Figure
5-3. Remove only enough insulation so that the exposed conductor fits
completely under the terminal connection. Best practice is to limit the
unshielded length (D) of each conductor to less than one inch. Excessive
removal of insulation may result in an unwanted electrical short to the
transmitter housing or other terminal connections. Excessive unshielded
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length, or failure to connect cable shields properly, may also expose the unit
to electrical noise, resulting in an unstable meter reading.
Figure 5-3: Cable ends
B
C
A
A. Unshielded length
B. Coil
C. Electrode
WARNING
Shock hazard! Potential shock hazard across remote junction box terminals 1
and 2 (85V).
WARNING
Explosion hazard! Electrodes exposed to process. Use only compatible
transmitter and approved installation practices. For process temperatures
greater than 284°F (140°C), use a wire rated for 257°F (125°C).
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Remote junction box terminal blocks
Figure 5-4: Remote junction box views
A
B
A. Sensor
B. Transmitter
Note
Junction box appearance and configuration may vary, but terminal
numbering is consistent for all junction box types.
Table 5-3: Sensor/transmitter wiring
Wire color Sensor terminal Transmitter terminal
Red 1 1
Blue 2 2
Coil drain 3 or float 3
Black 17 17
Yellow 18 18
White 19 19
Electrode drain or float
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5.4 Wiring sensor to transmitter
Figure 5-5: Wiring using component cable
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5.5 Power and I/O terminal blocks
Open the bottom cover of the transmitter to access the terminal block.
Note
To connect pulse output and/or discrete input/output, and for installations
with intrinsically safe outputs, refer to the product reference manual.
Figure 5-6: Terminal blocks
N 1 2 9 10 5 6 19 18
L1 3 11 12 7 8 17
Table 5-4: Power and I/O terminals
Terminal number AC version DC version
1 Coil Positive Coil Positive
2 Coil Negative Coil Negative
3 Coil Shield Coil Shield
5 + Pulse + Pulse
6 – Pulse – Pulse
7(1) Analog HART Analog HART
8(1) Analog HART Analog HART
9(2) + Discrete In/Out 2 + Discrete In/Out 2
10(2) – Discrete In/Out 2 – Discrete In/Out 2
11(2) + Discrete In/Out 1 + Discrete In/Out 1
12(2) – Discrete In/Out 1 – Discrete In/Out 1
17 Electrode Reference Electrode Reference
18 Electrode Negative Electrode Negative
19 Electrode Positive Electrode Positive
N AC (Neutral) DC (–)
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Table 5-4: Power and I/O terminals (continued)
Terminal number AC version DC version
L1 AC L1 DC (+)
(1) Note Polarity: Internally Powered, Terminal 7 (–) Analog HART, Terminal 8 (+)
Analog HART. Externally Powered, Terminal 7 (+) Analog HART, Terminal 8 (–)
Analog HART
(2) Only available with ordering code AX.
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5.6 Powering the transmitter
Before connecting power to the transmitter, be sure to have the necessary
electrical supplies and required power source:
Wire the transmitter according to national, local, and plant electrical
requirements.
If installing in a hazardous location, verify that the meter has the appropriate
hazardous area approval. The hazardous area ratings are located on the main
nameplate tag attached to the side of the transmitter.
Supply wire requirements
Use 10–18 AWG wire rated for the proper temperature of the application.
For wire 10–14 AWG use lugs or other appropriate connectors. For
connections in ambient temperatures above 122 °F (50 °C), use a wire rated
for 194 °F (90 °C). For DC powered transmitters with extended cable lengths,
verify that there is a minimum of 12VDC at the terminals of the transmitter
with the device under load.
Electrical disconnect requirements
Connect the device through an external disconnect or circuit breaker per
national and local electrical code.
Overcurrent protection
The transmitter requires overcurrent protection of the supply lines. Fuse
rating and compatible fuses are shown in Line power fuses.
Installation category
The installation category for the transmitter is OVERVOLTAGE CAT II.
AC power system installation requirements
Neutral-earth power requirements
•The power system must have a neutral that is locally bonded to earth, or
provide both line to earth and neutral to earth voltage limitation of no
more than 250 VAC.
Power line impedance
•Sources of inductance on the AC power system, such as isolation
transformers, must be limited to less than 1 mH at 120 VAC, and 2 mH at
240 VAC.
Power terminals
For AC powered transmitter (90–250VAC, 50/60 Hz):
•Connect AC Neutral to Terminal N and AC Line to Terminal L1.
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