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Rosemount 8732C Manual

Integral mount magnetic flowmeter system
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00809-0100-4725
English
Rev. BB
Model 8732C
Integral Mount
Magnetic
Flowmeter System

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Summary of Contents for Rosemount 8732C

  • Page 1 00809-0100-4725 English Rev. BB Model 8732C Integral Mount Magnetic Flowmeter System...
  • Page 3 For information on Rosemount nuclear-qualified products, contact your local Rosemount Sales Representative. Rosemount, the Rosemount logotype, and SMART FAMILY are registered trademarks of Rosemount Inc. HART is a registered trademark of the HART Communication Foundation. Cover Photo: 8732-002AB.

  • Page 5: Table Of Contents

    Table of Contents IMPORTANT Procedures and instructions in this manual may require special precautions to ensure the safety of the personnel performing the operations. Information that raises potential safety issues is indicated by a warning symbol ( ). Refer to the safety messages listed at the beginning of each section before performing an operation preceded by this symbol.
  • Page 6 Installation Procedures ........2-7 Handling ..........2-7 Flowtube Mounting .
  • Page 7 SECTION 4: Introduction ..........4-1 Safety Messages .
  • Page 8 Ordering Information ........6-4 Model 8732C Spare Parts ........6-5 SECTION 7: Specifications .
  • Page 9 APPENDIX A: Introduction ..........A-1 Safety Messages .

  • Page 11: Manual Scope

    Model 8732C Magnetic Flowmeter System. Section 3: Local Operator Interface introduces the Model 8732C local operator interface (LOI) and its function in configuring the Model 8732C. Section 4: Transmitter Functions guides you through the software configuration functions for the Model 8732C.

  • Page 12: System Description

    A complete magnetic flowmeter system consists of two components: the Rosemount Model 8732C microprocessor-based integral-mount magnetic flowmeter transmitter, and a Rosemount Model 8705 or 8711 flowtube. The flowtube is installed in-line with process piping, either vertically or horizontally. Coils located on opposite sides of the flowtube create a magnetic field, and conductive liquid moving through the magnetic field generates a voltage that is detected by two electrodes.

  • Page 13: Introduction

    Section Installation INTRODUCTION This section covers the installation procedures for the Model 8732C Magnetic Flowmeter System. SAFETY MESSAGES Instructions and procedures in this section may require special precautions to ensure the safety of the personnel performing the operations. Information that raises potential safety issues is indicated by a warning symbol ( ).

  • Page 14: Pre-Installation

    (22.50 mA) or low (3.75 mA). The switch is set in the High position when it leaves the factory. Current Output Internally or The Model 8732C 4–20 mA loop may be powered internally or by an Externally Powered external power supply. The Internal/External power supply switch determines the source of the 4–20 mA loop power.

  • Page 15: Changing Hardware Switch Settings

    3. Identify the location of each switch (see Figure 2-1). 4. Change the setting of the desired switches with a small screwdriver. 5. Reinstall and tighten the electronics cover. FIGURE 2-1. Model 8732C Electronics Board and Hardware Switches. Hi/Lo Alarm...

  • Page 16: Mechanical Considerations

    Rosemount Model 8732C Integral Mount Magnetic Flowmeter System Mechanical Considerations The mounting site for the Model 8732C Integral Mount Transmitter should provide enough room for secure mounting, easy access to the conduit ports, full opening of the transmitter covers, and easy readability of the local operator interface (LOI) screen (see Figure 2-2).

  • Page 17: Electrical Considerations

    The Model 8732C Transmitter is designed to be powered by voltages Transmitter Input Power ranging from 90 to 250 V ac (50 to 60 Hz) or 15–30 V dc. Units powered with an ac power supply should be connected to standard ac connections for 90 V ac or 250 V ac.

  • Page 18: Important User Notes

    Rosemount Model 8732C Integral Mount Magnetic Flowmeter System Figure 2-3 shows the surge current for each corresponding supply voltage. For combinations not shown above, you can calculate the maximum distance given the surge current, the voltage of the source, and the minimum start-up voltage of the transmitter, 15 V dc using the following equation: Max.

  • Page 19: Environmental Considerations

    Because the Model 8732C System requires external power, access to a suitable power source must be ensured. Overheating will damage the flowtube. Do not encapsulate the flowtube with heating elements.

  • Page 20: Flowtube Mounting

    Rosemount Model 8732C Integral Mount Magnetic Flowmeter System Flowtube Mounting Physical mounting of a flowtube is similar to installing a typical section of pipe. Only conventional tools, equipment, and accessories (such as bolts, gaskets, and grounding hardware) are required. Rosemount magnetic flowmeter systems are wet-calibrated at the Calibration factory and need no further calibration during installation.

  • Page 21: Flowtube Orientation

    Installation Flowtube Orientation Vertical Installation Vertical installation allows upward process fluid flow and is generally preferred. Upward flow keeps the cross-sectional area full, regardless of flow rate. Orientation of the electrode plane is unimportant in vertical installations. NOTE As shown in Figure 2-6, avoid downward vertical flows where back pressure is inadequate to ensure that the flowtube remains full.
  • Page 22 Rosemount Model 8732C Integral Mount Magnetic Flowmeter System An inclined installation, as shown in Figure 2-8, is an acceptable installation technique. This tends to keep the cross-sectional area full. NOTE As shown in Figure 2-8, avoid declining installations where back pressure is inadequate to ensure that the flowtube remains full.

  • Page 23: Flow Direction

    Installation Flow Direction The flowtube should be mounted so that the FORWARD end of the flow arrow, shown on the flowtube identification tag, points in the direction of flow through the tube (see Figure 2-9). FIGURE 2-9. Flow Direction. Flow Flow Direction Arrow Gaskets The flowtube requires gaskets at each of its connections to adjacent...

  • Page 24: Flange Bolts

    Rosemount Model 8732C Integral Mount Magnetic Flowmeter System Flange Bolts Flowtube sizes and torque values for Class 150 and Class 300 flanges are listed in Table 2-3. Tighten flange bolts in the incremental sequence shown in Figure 2-11. Correct flange bolt tightening is crucial for proper flowtube operation and Model 8705 life.

  • Page 25: Model 8711

    Installation For Model 8711, the flowtube inside diameter should be centered with Model 8711 respect to the inside diameter of the adjoining upstream and downstream piping. This will ensure the flowmeter achieves its specified accuracy. Mounting bolts supplied with 0.15 through 1-inch (4–25 mm) line sizes are specifically sized to properly align these flowtubes with the flange configurations specified.
  • Page 26 Rosemount Model 8732C Integral Mount Magnetic Flowmeter System Alignment with Centering Sleeves Follow the instructions below for the 1.5- through 8-inch (40 to 200 mm) line sizes if you received two centering sleeves instead of centering rings: 1. Insert the two studs for the bottom side of the flowtube, with the centering sleeves, between the pipe flanges.

  • Page 27: Grounding

    Installation Grounding Grounding the flowtube is one of the most important details of flowtube installation. Proper grounding ensures that only the voltage induced in the flowtubes magnetic field is measured. Use Table 2-5 to determine which grounding option figure to use for Model 8705 proper installation.
  • Page 28 Rosemount Model 8732C Integral Mount Magnetic Flowmeter System FIGURE 2-16. Model 8705 Grounding for Conductive Lined Pipe with Grounding Rings. Earth Ground Grounding Rings FIGURE 2-17. Model 8705 Grounding for Non-Conductive Pipe with Lining Protectors. Earth Ground Lining Protector Tab...

  • Page 29: Model 8711

    Installation FIGURE 2-19. Model 8705 Grounding for Non-Conductive Pipe with Grounding Electrodes. Use Table 2-6 to help determine the grounding option required for Model 8711 proper operation. TABLE 2-6. Model 8711 Grounding Installation. Grounding Options Type of Pipe No Grounding Options Grounding Rings Grounding Electrodes Conductive Unlined Pipe...
  • Page 30 Rosemount Model 8732C Integral Mount Magnetic Flowmeter System FIGURE 2-21. Model 8711 Grounding for Conductive Lined Pipe with Grounding Rings. Earth Ground Grounding Rings FIGURE 2-22. Model 8711 Grounding for Non-Conductive Pipe with Grounding Rings. Earth Ground Grounding Rings FIGURE 2-23. Model 8711 Grounding for Non-Conductive Pipe with Grounding Electrodes.

  • Page 31: Install Conduit

    Installation Install Conduit Transmitter junction boxes have ports for ¾-inch NPT conduit connections. 1. Connect the ¾-inch NPT conduit to the transmitter in accordance with local or plant electrical codes. 2. Seal unused ports to prevent moisture or other contamination from entering the junction box.

  • Page 32: Options, Considerations, And Procedures

    250 ohms resistance in the loop. External External power must be supplied if the Model 8732C is to be used in a multidrop installation (see Multidrop Communications on page 4-18). A 10–30 V dc power source is required. If a HART-based Communicator or DCS is used, it must be connected across a minimum of 250 ohms resistance in the loop.

  • Page 33: Connect Pulse Output Power Source

    Installation Connect Pulse Output The Pulse Output function provides an isolated switch-closure frequency output signal that is proportional to the flow through the Power Source flowtube. The signal is normally used in conjunction with an external totalizer or control system. The following requirements apply: Supply Voltage: Up to 24 V ac or dc.

  • Page 34: Connect Auxiliary Output Control

    Rosemount Model 8732C Integral Mount Magnetic Flowmeter System Connect Auxiliary In lieu of pulse output, the auxiliary output control function allows you to externally signal a zero flow or reverse flow condition. The following Output Control requirements apply: Supply Voltage: Up to 24 V ac or dc.

  • Page 35: Installation Check And Guide

    Installation Installation Check Use this guide to check new installations of Rosemount Magnetic Flowmeter Systems that appear to malfunction. For detailed and Guide troubleshooting instructions, see Section 5: Troubleshooting. Before You Begin Be sure that power to your system is off before beginning these checks.

  • Page 36: Process Leak Containment

    Rosemount Model 8732C Integral Mount Magnetic Flowmeter System Process Leak As shown in Figure 2-27, the standard configuration divides the housing into three separate compartments: one for each electrode and Containment one for the coils. The electrodes are separated from the rest of the internal components and the coils.

  • Page 37: Relief Valves

    Installation Relief Valves Housing configuration “W1” provides a relief valve in the housing to prevent possible overpressuring caused by damage to the lining or other situations that might allow process pressure to enter the housing. The relief valve will vent when the pressure inside the flowtube housing exceeds 5 psi.

  • Page 38: Field-Removable Electrodes

    Rosemount Model 8732C Integral Mount Magnetic Flowmeter System Field-Removable The field-removable electrode option allows the user to remove the electrode assembly with the flowtube still mounted in the line. Electrodes Frequently, this option will be used for cleaning the electrode head when coating is of concern.
  • Page 39 Installation 2-27...
  • Page 40 Rosemount Model 8732C Integral Mount Magnetic Flowmeter System 2-28...

  • Page 41: The Local Operator Interface (Loi)

    Local Operator Interface THE LOCAL OPERATOR The LOI option is an operator communications center for the Model 8732C. Through the LOI, the operator can access any transmitter INTERFACE (LOI) function for changing configuration parameter settings, checking totalized values, or other functions.

  • Page 42: Loi Features

    Rosemount Model 8732C Integral Mount Magnetic Flowmeter System LOI Features The LOI option contains a two-line, 16-character liquid crystal display (LCD) that is back-lit and visible from any angle. This display uses optical switches that reliably detect the touch of a finger on the LOI glass.

  • Page 43: Loi Rotation

    Local Operator Interface LOI Rotation Each magnetic flowmeter installation is different from application to application; therefore, the LOI display can be rotated to accommodate various setups using the following procedure: 1. Remove power from the transmitter. 2. Unscrew and remove the LOI cover. Do not remove the cover in explosive atmospheres when the circuit is alive.

  • Page 44: Loi Examples

    Rosemount Model 8732C Integral Mount Magnetic Flowmeter System LOI EXAMPLES Use the Transmitter Parameter keys shown in Figure 3-1 to change the parameters. The parameters are set in one of two ways: Table Value and Select Value. Table Values Parameters that are available from a predefined list, such as units.

  • Page 45: Loi Screen Flow

    Local Operator Interface LOI SCREEN FLOW ↑ → DISPLAY TOTALIZER ↑ DISPLAY SETUP Flow Rate Display ↓ Totalize Display Display Lock ↑ →Units Tube Size BASIC SETUP Tube Cal. No. ↑ →URV Configure URV, LRV ↓ LRV Configure Damping ↓ End of List ↑...

  • Page 46: Diagnostic Messages

    Rosemount Model 8732C Integral Mount Magnetic Flowmeter System TABLE 3-2. LOI Display and Functions. LOI Display Transmitter Function Display Setup Display Lock ....Locks out configuration changes (including totalizer start/stop/reset) from being made via the LOI. A DL indicator will show on the main flow rate screen. All values can still be viewed.

  • Page 47: Introduction

    Section Transmitter Functions INTRODUCTION The Model 8732C features a full range of software functions for configuration of output from the transmitter. Software functions are accessed through the LOI (see Section 3: Local Operator Interface), a HART-based communicator (see Appendix A: HART Communicator), or a control system.

  • Page 48: Safety Messages

    Rosemount Model 8732C Integral Mount Magnetic Flowmeter System SAFETY MESSAGES Instructions and procedures in this section may require special precautions to ensure the safety of the personnel performing the operations. Information that raises potential safety issues is indicated by a warning symbol ( ). Please refer to the following safety messages before performing an operation preceded by this symbol.

  • Page 49: Review Variables

    Transmitter Functions REVIEW VARIABLES Before operating the Model 8732C in an actual installation, review all of the factory set configuration data to ensure that they reflect the current application. Review the flowmeter configuration parameters set at the factory to Review...

  • Page 50: Basic Configuration

    Rosemount Model 8732C Integral Mount Magnetic Flowmeter System BASIC CONFIGURATION The basic configuration functions of the Model 8732C must be set for all applications of the transmitter in a magnetic flowmeter system. If your application requires the advanced functionality features of the Model 8732C, see Special Units Configuration on page 4-5.

  • Page 51: Special Units Configuration

    Example Suppose you work for a brewery, and want the Model 8732C to display flow in barrels per hour. One barrel of beer is equal to 31.0 gallons. You would set the following: Volume Unit = BARL.

  • Page 52: Analog Output Configuration

    Rosemount Model 8732C Integral Mount Magnetic Flowmeter System ANALOG OUTPUT The standard 4–20 mA analog output can be configured to meet the special requirements of your application. In the standard configuration, CONFIGURATION a 4 mA output (LRV) corresponds to 0.0 ft/s in the line, while a 20 mA output (URV) corresponds to a maximum flow of 30 ft/s.

  • Page 53: 4-20 Ma Output Trim

    Transmitter Functions For maximum accuracy, the analog output should be calibrated and, if 4–20 mA Output Trim necessary, trimmed for your system loop. The 4–20 mA Output Trim HART Fast Keys 1, 2, 4, 1 procedure alters the conversion of the digital signal into an analog 4–20 mA output.

  • Page 54: Digital Output

    When selecting pulse output scaling, remember that the maximum pulse rate is 1000 Hz. With the 110 percent overrange capability, the absolute limit is 1100 Hz. For example, if you want the Model 8732C to pulse every time 0.01 gallons pass through the flowtube, and the flow...

  • Page 55: Pulse Width

    Transmitter Functions Pulse Width, or duration, of the frequency output pulse can be Pulse Width adjusted to match the requirements of different counters HART Fast Keys 1, 4, 3, 3, 2 or controllers (See Figure 4-1). The pulse width adjusts the time that the switch is closed.
  • Page 56 Rosemount Model 8732C Integral Mount Magnetic Flowmeter System Example The external counter is ranged for 350 gpm. You want to set 1 pulse for every gallon of flow. What is the maximum frequency output? (Assume the pulse width = 0.5 ms.)

  • Page 57: Totalizer Configuration

    Transmitter Functions TOTALIZER The totalizer tracks total flow in the process line. You can start, stop, or reset the totalizer as well as configure it to present the data specific to CONFIGURATION your application on the LOI display. On the LOI, the Totalizer Display allows you to choose the desired Totalizer Display format for indicating the totalized values.

  • Page 58: Noise Reduction

    Rosemount Model 8732C Integral Mount Magnetic Flowmeter System NOISE REDUCTION Damping allows selection of a response time, in seconds, to a step change in Damping flow rate. It is most often used to smooth fluctuations in output. HART Fast Keys...

  • Page 59: Signal Processing Control

    Transmitter Functions Signal Processing Control Signal Processing Control — On/Off When ON is selected, the Model 8732C output is derived using a running HART Fast Keys 1, 4, 4, 4 average of the individual flow inputs. This average is updated at the rate of 12 samples per second regardless of the selected coil drive mode.

  • Page 60: Calibration

    This procedure is rarely needed by customers. It is only necessary if you HART Fast Keys 1, 2, 4, 3 believe the Model 8732C is no longer accurate. It must be performed with the coil drive mode set to 6 Hz and with a nominal flowtube calibration Transmitter Trim number stored in the memory.

  • Page 61: Transmitter Information Configuration

    The tag may be up to eight characters long and is user-defined. Device Information The Model 8732C microcontroller will automatically read the Software Software Revision Number Revision Number and display it under this heading. The software...

  • Page 62: Liner Material

    Rosemount Model 8732C Integral Mount Magnetic Flowmeter System Liner Material enables you to select the liner material for the attached Liner Material flowtube. This variable needs to be changed only if you have replaced HART Fast Keys 1, 4, 5 your flowtube.

  • Page 63: Flange Type

    Transmitter Functions Flange Type enables you to specify the type of flange on the transmitter for Flange Type later reference. This variable is preset at the factory but can be changed HART Fast Keys 1, 4, 5 if necessary. Device Information •...

  • Page 64: Multidrop Communications

    Rosemount Model 8732C Integral Mount Magnetic Flowmeter System MULTIDROP Multidrop configuration refers to the connection of several transmitters to a single communications transmission line. Communication between COMMUNICATIONS the HART Communicator and the transmitters takes place digitally with the analog output of the transmitters deactivated. Using the HART communications protocol, up to 15 transmitters can be connected on a single twisted pair of wires or over leased phone lines.

  • Page 65: Auto Poll

    Model 8732C in the same way as it can a Model 8732C in a standard point-to-point installation. NOTE The Model 8732C is set to poll address zero at the factory, allowing it to operate in the standard point-to-point manner with a 4–20 mA output signal. To activate multidrop communication, the transmitter poll address must be changed to a number between 1 and 15.
  • Page 66 Rosemount Model 8732C Integral Mount Magnetic Flowmeter System 4-20...

  • Page 67: Basic Troubleshooting

    Section Troubleshooting BASIC Problems in the magnetic flowmeter system are usually indicated by incorrect output readings from the system, error messages, or failed TROUBLESHOOTING tests. Consider all sources when identifying a problem in your system. SAFETY MESSAGES Instructions and procedures in this section may require special precautions to ensure the safety of the personnel performing the operations.
  • Page 68 Rosemount Model 8732C Integral Mount Magnetic Flowmeter System TABLE 5-1. Basic Troubleshooting–Model 8732C. Symptom Potential Cause Corrective Action Output at 0 mA. No power to transmitter. Check power source and connections to the transmitter. Analog output improperly Check the analog power switch. See Hardware Switches on page 2-2 for configured.

  • Page 69: Advanced Troubleshooting

    Noisy Conditions Basic Procedure 1. Change coil drive to 30 Hz. 2. Increase the damping. 3. Activate signal processing. 4. Consult Rosemount Sales Representative about using a High-Signal Magnetic Flowmeter System. TABLE 5-2. Advanced Troubleshooting–Model 8732C. Accuracy Symptom...

  • Page 70: Software Testing

    Rosemount Model 8732C Integral Mount Magnetic Flowmeter System TABLE 5-2. Advanced Troubleshooting–Model 8732C. Symptom Potential Cause Corrective Action Noisy Process. Chemical additives upstream of Complete the Noisy Conditions Basic Procedure (page 5-3). magnetic flowmeter. Move injection point downstream of magnetic flowmeter, or move magnetic flowmeter.

  • Page 71: Flowtube Troubleshooting Procedures

    Troubleshooting Flowtube Troubleshooting The following tests can check Models 8705 or 8711 flowtubes in line and full of process material. The tests allow you to determine whether or Procedures not the flowtube needs to be removed from the process. The transmitter must be removed to conduct these tests.
  • Page 72 Rosemount Model 8732C Integral Mount Magnetic Flowmeter System FIGURE 5-1. Model 8705 Flowtube Circuit Diagram. Coil Coil Flowtube Chassis 50 k both FIGURE 5-2. Model 8711 Magnetic Flowmeter Flowtube Circuit Diagram. to Transmitter to Transmitter Shield – – Electrodes Coil...

  • Page 73: Return Of Materials

    Troubleshooting RETURN OF MATERIALS To expedite the return process outside the United States, contact the nearest Rosemount representative. Within the United States and Canada, call the North American Response Center using the 800-654-RSMT (7768) toll-free number. This center, available 24 hours a day, will assist you with any needed information or materials.
  • Page 74 Rosemount Model 8732C Integral Mount Magnetic Flowmeter System...

  • Page 75: Specifications

    SPECIFICATIONS Functional Specifications Flowtube Compatibility Compatible with Rosemount Model 8705 or Model 8711 Flowtubes. Flow Rate Range Capable of processing signals from fluids that are traveling between 0.04 and 30 ft/s (0.01 to 10 m/s) for both forward and reverse flow in all flowtube sizes.
  • Page 76 Rosemount Model 8732C Integral Mount Magnetic Flowmeter System Software Lockout Security switch on electronics can be set for deactivation of all LOI and HART-based communicator functions that affect the transmitter input/output. Auxiliary Output Function In lieu of a scalable frequency output, an auxiliary output is available using the digital output terminals.

  • Page 77: Performance Specifications

    KEMA/CENELEC Approval (ED) EEx d IIB T6. Special Conditions If the Magnetic Flowmeter Transmitter Type 8732C is used integrally with certified Magnetic Flowmeter Types 8705 or 8711, it shall be assured that the mechanical contact areas of the 8705 or 8711 and the 8732C comply with the requirements for flanged joints, EN 50018-1877, clause 4.1.

  • Page 78: Physical Specifications

    Rosemount Model 8732C Integral Mount Magnetic Flowmeter System Physical Specifications Electrical Connections ¾–14 NPT connections provided on the transmitter housing. PG13.5 and CM20 adapters are available. Screw terminals provided for all connections. Power wiring connected to transmitter only. Integrally mounted transmitters are factory wired to the flowtube.

  • Page 79: Model 8732C Spare Parts

    Electrical Connection Assembly (Flowtube to transmitter) 08732-0133-0001 Model 8732C Non-Volatile Totalizer Chip – C53641-0003 Transmitter and Flowtube Accessories Multi-Point Reference Calibration Standard (for use with Model 8712C, 8712U, or 8732C Transmitters) — Model 8714D Spare Model 8714D Cable (for Model 8732C Transmitters) — 08714-0205-0001 UMB Tube to 8732C Transmitter Conversion Bracket —...
  • Page 80 Rosemount Model 8732C Integral Mount Magnetic Flowmeter System...

  • Page 81: Specifications

    (15, 25, 40, 50, 80, 100, 150, 200, 250, 300, 350, 400, 450, 500, 600, 750, and 900 mm). Interchangeability All Model 8705 Flowtubes and Series 8712 or 8732C Transmitters are completely interchangeable. System accuracy is maintained regardless of line size or optional features. Each flowtube nameplate has a multi-...
  • Page 82 Rosemount Model 8732C Integral Mount Magnetic Flowmeter System TABLE 7-1. Relation Between Ambient Temperature, Process Meter Size Maximum Ambient Maximum Process Temperature Class Temperature, and (inches) Temperature Temperature Temperature Class. ½ 149 °F (65 °C) 240 °F (116 °C) 149 °F (65 °C) 248 °F (120 °C)
  • Page 83 Model 8705 Specifications and Reference Data TABLE 7-2. Flowtube Temperature vs. Pressure Limits. ANSI Class Flanges: ½ – 24 inch Line Sizes Pressure in psi PTFE Teflon ETFE Tefzel Natural Rubber Neoprene Polyurethane Liners Liner Liner Liner Liner Liner Flange Rating (@ 100 °F, 37.8 (@ 350 °F, 177 (@ 300 °F, 149...

  • Page 84: Performance Specifications

    Performance (System specifications at reference conditions with frequency output and flowtube in new condition.) Accuracy (with Model 8712C, Model 8712U or Model 8732C) Specifications ±0.5% of rate from 1 to 30 ft/s (0.3 to 10 m/s). Includes combined effects of linearity, hysteresis, repeatability, and calibration uncertainty.
  • Page 85 Model 8705 Specifications and Reference Data TABLE 7-3. Model 8705 Dimensions with ANSI Flanges in Inches (Millimeters). Overall Body Line Size Liner Face Process Body Centerline Bolt Hole Number Flowtube Widest’ Bolt Hole and Flange Diameter Flange Height to Conduit Circle and Size Length...
  • Page 86 Rosemount Model 8732C Integral Mount Magnetic Flowmeter System TABLE 7-4. Flowtube Dimensions with DIN Flanges in Millimeters (Inches). Overall Line Size Liner Face Process Body Body Centerline Bolt Hole Flowtube Bolt Hole Number of and Flange Diameter Flange Height Width “D”...
  • Page 87 Model 8705 Specifications and Reference Data TABLE 7-5. Flowtube Dimensions with ANSI Flanges and Tri-Clamp Adaptors (A3) in Inches (Millimeters) Line Size Nominal Overall Process Body Centerline Tri- Flowtube Flange Height to Conduit Flange Clamp Length Rad. “B” “C” Max “E”...
  • Page 88 Rosemount Model 8732C Integral Mount Magnetic Flowmeter System 4.75 2.00 0.66 (121) (51) (17) 1.35 1.00 (34) (25) 2.00 2.00 (51) (51) ¾–14 NPT Conduit Connection “E” “C” “B” “A” “L” “D” NOTES Dimensions are in inches (millimeters). See Table 7-3 and 7-4 for variable dimensions.
  • Page 89 Model 8705 Specifications and Reference Data ORDERING INFORMATION Model Product Description 8705 Magnetic Flowmeter Flowtube Code Lining Material PTFE Teflon ETFE Tefzel Polyurethane   Neoprene Available in 1½- through 36-inch (40–900 mm) line sizes.  Natural Rubber ELECTRODE TYPE (see below) Code Electrode Material Code A (Add)
  • Page 90 Rosemount Model 8732C Integral Mount Magnetic Flowmeter System Code Optional Grounding Rings and Lining Protection Grounding Ring Grounding rings and lining protectors cannot be used together. Both options provide the same fluid grounding function. Lining Protectors Lining protectors available with PTFE liners only.

  • Page 91: Specifications

    Section Model 8711 Specifications and Reference Data SPECIFICATIONS Functional Specifications Service Conductive liquids and slurries. Line Sizes 0.15, 0.30, 0.5, 1, 1.5, 2, 3, 4, 6, and 8 inches (4, 8, 15, 25, 40, 50, 80, 100, 150, 200 mm). Upper Range Limit 30 ft/s (10 m/s).

  • Page 92: Performance Specifications

    Rosemount Model 8732C Integral Mount Magnetic Flowmeter System Standard Hazardous Locations Certifications Factory Mutual (FM) Approval Approved for Class I, Division 2, Groups A, B, C, and D; Class II, Division 1, Groups E, F, and G; Class III hazardous locations.
  • Page 93 Model 8711 Specifications and Reference Data Process Connections Mounts between these Flange Configurations ANSI: Class 150, 300.vv DIN: PN 10 and 25. BS: 10 Table D, E, and F. Mounting Studs 0.15, 0.30, 0.5, and 1 inch (4, 8, 15, 25 mm): 316 SST, ASTM A-193, Grade B7.
  • Page 94 Rosemount Model 8732C Integral Mount Magnetic Flowmeter System FIGURE 8-1. Model 8711 Dimensional Drawings 1.5- THROUGH 8-INCH LINE SIZES 4.75 (121) 0.66 (13) (17) 1.35 (34) 2.00 (51) “A” “B” Flow “C” “D” 0.15- THROUGH 1-INCH LINE SIZES 4.75 (121)
  • Page 95 8.0 (200) Code Transmitter Mounting Configuration Remote (2-inch Pipe or Surface Mount) Integral with Model 8712C Transmitter Integral with Model 8732C Transmitter Code Mounting Kit ANSI Class 150 DIN PN 10/16 (8 inch (200mm) has a PN 10 Mounting Kit Only.) ANSI Class 300 DIN PN 25/40 (8 inch (200mm) has a PN 25 Mounting Kit Only.)
  • Page 96 Rosemount Model 8732C Integral Mount Magnetic Flowmeter System...

  • Page 97: Appendix A: Introduction

    HART Communicator INTRODUCTION This appendix provides basic communicator information on the HART Communicator Model 275 when used with a Model 8732C Integral Mount Magnetic Flowmeter System. Included in this appendix are a menu tree, a table of fast key sequences, and information on using the HART communicator.

  • Page 98: Hart Communicator Menu Tree

    Rosemount Model 8732C Integral Mount Magnetic Flowmeter System FIGURE A-1. HART Communicator Menu Tree. 1 Gross Totalized Value 1 Flow Rate 2 Net Totalized Value 2 Percent of Range 1 PROCESS 3 Reverse Totalized Value 3 Analog Output VARIABLE 4 Start Totalizer...

  • Page 99: Hart Fast Key Sequence

    Appendix A TABLE A-1. HART Fast Key Sequences for the Model 8732C. Function HART Fast Key Function HART Fast Key AO Alarm Type 1, 4, 3, 1, 4 Message 1, 4, 5, 4 Analog Output 1, 1, 3 Net Totalized Value...

  • Page 100: Connections And Hardware

    Rosemount Model 8732C Integral Mount Magnetic Flowmeter System CONNECTIONS The HART Communicator exchanges information with the transmitter from the control room, the instrument site, or any wiring termination AND HARDWARE point in the loop. The HART Communicator should be connected in parallel with the transmitter.
  • Page 101 FIGURE A-4. Connecting the HART Communicator with the Optional Load Resistor. NOTE Loop must be broken to insert the optional 250 ohm resistor. 4–20 mA – Model 8732C 4–20 mA + Optional 250 ohm Fuse load resistor...

  • Page 102: Basic Features

    Rosemount Model 8732C Integral Mount Magnetic Flowmeter System BASIC FEATURES The basic features of the HART Communicator include Action Keys, Function Keys, and Alphanumeric and Shift Keys. FIGURE A-5. The HART Communicator. Function Keys Action Keys Alphanumeric Keys Shift Keys...

  • Page 103: Action Keys

    Appendix A Action Keys The Action Keys As shown in Figure A-5, the action keys are the six blue, white, and black keys located above the alphanumeric keys. The function of each key is described as follows: ON/OFF Key Use this key to power the HART Communicator. When the communicator is turned on, it searches for a transmitter on the 4–20 mA loop.

  • Page 104: Alphanumeric And Shift Keys

    Rosemount Model 8732C Integral Mount Magnetic Flowmeter System Alphanumeric The Alphanumeric keys perform two functions: the fast selection of menu options and data entry. and Shift Keys FIGURE A-6. HART Communicator Alphanumeric and Shift Keys. Data Entry Some menus require data entry. Use the Alphanumeric and Shift keys to enter all alphanumeric information into the HART Communicator.

  • Page 105: Menus And Functions

    Appendix A MENUS AND FUNCTIONS The HART Communicator is a menu driven system. Each screen provides a menu of options that can be selected as outlined above, or provides direction for input of data, warnings, messages, or other instructions. Main Menu When the HART Communicator is turned on, one of two menus will appear.

  • Page 106: Diagnostic Messages

    Rosemount Model 8732C Integral Mount Magnetic Flowmeter System Diagnostic Messages The following is a list of messages used by the HART Communicator (HC) and their corresponding descriptions. TABLE A-2. Diagnostic Messages. Message Description Add item for ALL device types or Asks the user whether the hot key item being added only for this ONE device type.
  • Page 107 Appendix A Message Description OFF KEY DISABLED Appears when the user attempts to turn the HC off before sending modified data or before completing a method. Online device disconnected with There is unsent data for a previously connected device. unsent data. RETRY or Press RETRY to send data, or press OK to disconnect OK to lose data.
  • Page 108 Rosemount Model 8732C Integral Mount Magnetic Flowmeter System A-12...

  • Page 109: Appendix B: Introduction

    INTRODUCTION Operation planning is necessary for successful installation. Process fluid conductivity should be 5 microsiemens/cm (5 micromhos/cm) or greater. All options available to the Model 8732C Integral Mount Magnetic Flowmeter System should be carefully reviewed before selection. Flowtube site and process fluid characteristics are also important considerations.

  • Page 110: Flowtube Site Selection

    Requirements for a satisfactory flowtube site depend on the exact installation configuration. Consider the following when planning a site. A Model 8732C Integral Mount Magnetic Flowmeter System requires Line Power Access a supply of ac power only at the transmitter, and not at the flowtube.

  • Page 111: Process Conditions

    Appendix B FIGURE B-2. Typical Bypass Piping Configuration. Flow Process Conditions Process conditions and loop elements must be considered during site selection to ensure an accurate, noise-free output signal. Avoid placement near pumps (especially positive displacement pumps) or flow variations may appear in the output signal. Also, keep slurries as homogeneous as possible to prevent damage to the flowtube electrodes and liner.

  • Page 112: Flowtube Orientation

    Rosemount Model 8732C Integral Mount Magnetic Flowmeter System Flowtube Orientation Upstream Piping Length Magnetic flowmeters are less sensitive to liquid velocity profile variation than most other flowmeters. However, to ensure specification accuracy over widely varying process conditions, install the flowtube with a minimum of five straight pipe diameters upstream and two straight pipe diameters downstream from the electrode plane.
  • Page 113 Appendix B TABLE B-1. Sizing Guidelines. Velocity Range Velocity Range Application (ft/s) (m/s) Normal Service 2–20 0.6–6.1 Abrasive Slurries 3–10 0.9–3.1 Non-Abrasive Slurries 5–15 1.5–4.6 To convert flow rate to velocity, use the appropriate factor listed in Table B-2 and the following equation: Flow Rate Velocity = Factor...
  • Page 114 Rosemount Model 8732C Integral Mount Magnetic Flowmeter System FIGURE B-3. Fluid Velocity vs. Rate Curves for Model 8705. FLOW RATE (liters/minute) 150K 10K 20K 30K 50K 100K 200K 40K 60K 80K FLOW RATE (gallons/minute) FIGURE B-4. Fluid Velocity vs. Rate Curves for Model 8711...
  • Page 115 Appendix B TABLE B-3. Line Size vs. Fluid Velocity/Rate Minimum/Maximum Flow Rate Nominal Gallons per Minute Liters per Minute Line Size in Inches at 0.04 ft/s at 0.3 m/s at 10 m/s at 1 ft/s at 30 ft/s at 0.012 m/s (mm) (Low-flow (Min.
  • Page 116 Rosemount Model 8732C Integral Mount Magnetic Flowmeter System...

  • Page 117: Appendix C: Safety Messages

    Appendix Transmitter Output Instability SAFETY MESSAGES Instructions and procedures in this section may require special precautions to ensure the safety of the personnel performing the operations. Please read the following safety messages before performing any operation described in this section. Warnings Explosions could result in death or serious injury: •...

  • Page 118: Auto Zero

    Rosemount Model 8732C Integral Mount Magnetic Flowmeter System PROCEDURES If the output of your Model 8732C is unstable, first check the wiring and grounding associated with the magnetic flowmeter system (see the Installation Check and Guide on page 2-23).Ensure that the following conditions are met: •...

  • Page 119: How Does It Really Work

    125 samples, it is this number of previous inputs that are averaged together to arrive at the average value. Because the output stage of the 8732C circuit is updated twelve times each second, regardless of coil drive mode, twelve samples equals one second (i.e., 0 to 120 samples = 0 to 10 seconds).

  • Page 120: When Should Signal Processing Be Used?

    When Should Signal The Model 8732C offers three separate functions that can be used in Processing Be Used? series for improving a noisy output. The first step is to toggle the coil drive to the 30 Hz mode and initialize with an auto zero.

  • Page 121: Appendix D: Operating Principle

    V, because field strength is a controlled constant and electrode spacing is fixed. Therefore, the output voltage E is directly proportional to liquid velocity, resulting in the inherently linear output of the Rosemount Magnetic Flowmeter System. FIGURE D-1. Flowtube Cross Section.

  • Page 122: Primary And Secondary Devices

    Rosemount Model 8732C Integral Mount Magnetic Flowmeter System PRIMARY AND The Series 8700 System consists of primary and secondary devices. The primary Series 8700 Flowtube is a pipe section with coils and SECONDARY DEVICES electrodes. The secondary Series 8700 Transmitter generates the coil drive signal.
  • Page 123 Appendix D Although stray noise may be picked up with induced flow voltage at the electrodes, it is easily separated by the following procedure: 1. Measure voltage with the magnetic field high and note the amount. 2. Measure voltage with magnetic field low and note the amount. 3.
  • Page 124 Rosemount Model 8732C Integral Mount Magnetic Flowmeter System The pulsed dc field coil design has the following advantages: • Automatic Zeroing — A new reference is established with each sample of the flow signal, several times a second. This eliminates the need to zero the system under a no-flow condition that requires process shutdown.

  • Page 125: Index

    Index Action Keys A-7 Electrical Considerations Handling 2-7 Alphanumeric Keys A-8 Input Power 2-5 Hardware A-4 Auto Zero 4-12, C-2 Wire Lengths 2-5 Hardware Switches 2-2 Auxiliary Output 2-22 Electrical Design D-2 HART Communicator A-1 Electrode Material 4-16 Action Keys A-7 Electrode Type 4-16 Alphanumeric Keys A-8 Environmental Considerations 2-6...
  • Page 126 Rosemount Model 8732C Integral Mount Magnetic Flowmeter System Liner Material 4-16 Rate Unit 4-5 Vertical Installation 2-9 LOI Keys Relief Valves 2-26 Function Definition 3-6 Return of Materials 5-7 Lower Range Value A-3 Reverse Flow Enable 4-8 Wire Lengths 2-5...

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