Rosemount 8782 Operating Manual

Reference Manual

00809-0100-8782, Rev AA

November 2019

Rosemount® 8782 Slurry Magnetic Flow Meter Transmitter with HART Protocol

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

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	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

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	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

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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.

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1.1Safety 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.

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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

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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.

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Reference Manual	Introduction
00809-0100-8782	November 2019

2 Introduction

2.1System 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.

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Figure 2-3: Sensor cross section

A.Electrode

B.Coils

2.2Product 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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3 Sensor Installation

This chapter provides instructions for handling and installing the flow sensor with a remotely mounted transmitter.

Related information

Remote Transmitter Installation

3.1Handling 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.

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3.1.1Lifting 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

3.2Location and Position

3.2.1Environmental 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

3.2.2Upstream 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.

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Figure 3-2: Upstream and downstream straight pipe diameters

A

B

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.

3.2.3Flow direction

The sensor should be mounted so that the arrow points in the direction of flow.

Figure 3-3: Flow direction arrow

3.2.4Sensor 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.

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Figure 3-4: Sensor orientation

A.Flow direction

3.2.5Electrode 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

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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.

3.3Sensor Installation

3.3.1Flanged 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

B

A

A.Grounding ring and gasket (optional)

B.Customer-supplied gasket

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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 5

6 3 2 7

Prior to installation, identify the lining material of the flow sensor to ensure the suggested torque values are applied.

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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	Line size	Fluoropolymer liners		Other liners
code
		Class 150 (lb ft)	Class 300 (lb ft)	Class 150 (lb ft)		Class 300 (pound
						feet)
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

Table 3-3: Suggested flange bolt torque values for Rosemount MS sensors with fluoropolymer liners (EN 1092-1)

Size	Line size	Fluoropolymer liners (in Newton-meters)
code
		PN 10	PN 16	PN 25	PN 40
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

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Table 3-3: Suggested flange bolt torque values for Rosemount MS sensors with fluoropolymer liners (EN 1092-1) (continued)

Size	Line size	Fluoropolymer liners (in Newton-meters)
code
		PN 10	PN 16	PN 25	PN 40
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

Table 3-4: Suggested flange bolt torque values for Rosemount MS sensors with non-fluoropolymer liners (EN 1092-1)

Size	Line size	Non-fluoropolymer liners (in Newton-meters)
code
		PN 10	PN 16	PN 25	PN 40
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
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

3.4Process 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.

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	Table 3-5: Process reference options
	Type of pipe	Grounding	Grounding rings	Reference		Lining protectors
		straps		electrode
	Conductive	See Figure 3-8	See Figure 3-9	See Figure 3-11		See Figure 3-9
	unlined pipe
	Conductive lined	Insufficient	See Figure 3-9	See Figure 3-8		See Figure 3-9
	pipe	grounding
	Non-conductive	Insufficient	See Figure 3-10	Not		See Figure 3-10
	pipe	grounding		recommended

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

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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

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Figure 3-11: Grounding with reference electrode in conductive unlined pipe

Figure 3-12: Grounding for line sizes 10-in. and larger

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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

4.1Pre-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.

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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)
2.8	3.1
(71)	(79)
C

12.0

11.2 (306)

(283)

D

A

B

3.5

(89)

17.7
(449)
			11.4
1.9	1.7	1.9	(289)
(49)	(43)	(49)
			1.6
			(40)
3.9
(99)	7.8
	(198)

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)

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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.

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4.2Transmitter symbols

Caution symbol — check product documentation for details

Protective conductor (grounding) terminal

4.3Mounting

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

A

B

B

A

B

B

A.U-bolt

B.Fasteners

4.3.1Pipe 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.

28	Rosemount® 8782 Slurry Magnetic Flow Meter Transmitter with HART Protocol

Reference Manual	Remote Transmitter Installation
00809-0100-8782	November 2019

4.3.2Surface 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).

4.4Wiring

4.4.1Conduit 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.

4.4.2Conduit 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

A	C D E	A
	B

A

A.Safety ground

B.Power

C.Coil

D.Output

E.Electrode

4.4.3Sensor 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	Coil	2442C
		(includes Coil and Electrode)	Electrode	2413C
08732-0065-0002	(meters)	Kit, component cables, Std temp	Coil	2442C
		(includes Coil and Electrode)	Electrode	2413C

30	Rosemount® 8782 Slurry Magnetic Flow Meter Transmitter with HART Protocol