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Rosemount Model 8732C Integral Mount Magnetic Flowmeter System

4-12

NOISE REDUCTION

Damping

Damping allows selection of a response time, in seconds, to a step change in
flow rate. It is most often used to smooth fluctuations in output.

Coil Frequency

Coil Frequency allows pulse-rate selection of the flowtube coils.

6 Hz

The standard coil pulse mode is 6 Hz, which is sufficient for
nearly all applications.

30 Hz

If the process fluid causes a noisy or unstable output, increase the coil
pulse mode to 30 Hz. If the 30 Hz mode is selected, perform the Auto
Zero function as shown below.

Auto Zero

Auto Zero initializes the transmitter for use with the 30 Hz coil drive
mode only. Run this function only with the transmitter and flowtube
installed in the process. The flowtube must be filled with process fluid
at zero flow. Before running the auto zero function, be sure the coil
drive mode is set to 30 Hz.

Set the loop to manual if necessary. Then, begin the auto zero procedure. The
transmitter completes the procedure automatically in about two minutes. A
symbol appears in the lower right-hand corner of the display to indicate that
the procedure is running.

Low Flow Cutoff

Low Flow Cutoff allows you to specify the flow rate, between 0.001
and 1.0 foot per second, below which the outputs are driven to zero flow.
The units format for low flow cutoff cannot be changed. It is always
displayed as feet per second regardless of the format selected. The low
cutoff value applies to both forward and reverse flows.

Signal Processing

Signal Processing is a software algorithm that examines the quality
of the electrode signal against user-specified tolerances. If spurious
noise spikes are detected, they are automatically rejected. There are
three parameters associated with this function:

• Number of samples (0 to 125)

• Maximum percent limit (0 to 100 percent of running average)

• Time limit (0 to 256 seconds)

HART Fast Keys

1, 3, 7

LOI

Basic Setup

HART Fast Keys

1, 4, 4, 3

LOI

Detailed Setup

HART Fast Keys

1, 2, 4, 4

LOI

Transmitter Trim

HART Fast Keys

1, 4, 4, 1

LOI

Detailed Setup

HART Fast Keys

1, 4, 4

LOI

Detailed Setup

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Содержание 8732C

Страница 1: ...Model 8732C Integral Mount Magnetic Flowmeter System 00809 0100 4725 English Rev BB ...

Страница 2: ......

Страница 3: ...erican 1 800 654 7768 24 hours a day Includes Canada Response Center Equipment service needs For equipment service or support needs outside the United States contact your local Rosemount representative 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 m...

Страница 4: ......

Страница 5: ...l Considerations 2 5 Conduit Connections 2 5 Transmitter Input Power 2 5 dc Power Requirements 2 5 Important User Notes 2 6 Installation Category 2 6 Supply Wire Requirements 2 6 Disconnects 2 6 Overcurrent Protection 2 6 Transmitter Symbols 2 6 Environmental Considerations 2 7 Procedures and instructions in this manual may require special precautions to ensure the safety of the personnel performi...

Страница 6: ...rations and Procedures 2 20 Connect 4 20 mA Loop External Power Source 2 20 Connect Pulse Output Power Source 2 21 Connect Auxiliary Output Control 2 22 Quick Start Up 2 22 Installation Check and Guide 2 23 Process Leak Protection Model 8705 Only 2 23 Process Leak Containment 2 24 Relief Valves 2 25 Field Removable Electrodes 2 26 SECTION 3 Local Operator Interface The Local Operator Interface LOI...

Страница 7: ... 4 8 Auxiliary Output Control 4 8 Pulse Width 4 9 Totalizer Configuration 4 11 Totalizer Display 4 11 Noise Reduction 4 12 Damping 4 12 Coil Frequency 4 12 Auto Zero 4 12 Low Flow Cutoff 4 12 Signal Processing 4 12 Signal Processing Control 4 13 Number of Samples 4 13 Maximum Percent Limit 4 13 Time Limit 4 13 Calibration 4 14 Gain Electronics Trim 4 14 Transmitter Information Configuration 4 15 T...

Страница 8: ... 6 Model 8732C Specifications and Reference Data Specifications 6 1 Functional Specifications 6 1 Performance Specifications 6 3 Physical Specifications 6 4 Ordering Information 6 4 Model 8732C Spare Parts 6 5 SECTION 7 Model 8705 Specifications and Reference Data Specifications 7 1 Functional Specifications 7 1 Performance Specifications 7 2 Physical Specifications 7 3 SECTION 8 Model 8711 Specif...

Страница 9: ...pass Piping B 2 Process Conditions B 3 Adequate Space B 3 Earth Ground B 3 Low Noise Environment B 3 Conductivity B 3 Flowtube Orientation B 4 Upstream Piping Length B 4 Vertical Installation B 4 Horizontal Installation B 4 Magnetic Flowmeter Sizing B 4 APPENDIX C Transmitter Output Instability Safety Messages C 1 Warnings C 1 Procedures C 2 Auto Zero C 2 Signal Processing C 2 How Does It Really W...

Страница 10: ...vi ...

Страница 11: ...ional performance and physical specifications for the Model 8732C It also includes ordering information and approvals Section 7 Model 8705 Specifications and Reference Data provides functional performance and physical specifications for Model 8705 Flanged Magnetic Flowmeter Flowtubes It also includes ordering information and approvals Section 8 Model 8711 Specifications and Reference Data provides...

Страница 12: ...etic field and conductive liquid moving through the magnetic field generates a voltage that is detected by two electrodes The transmitter controls the generation of the magnetic field and senses the voltage detected by the electrodes Based on the sensed voltage the transmitter calculates a flow rate and produces analog and frequency output signals proportional to this flow rate SAFETY MESSAGES Pro...

Страница 13: ...er is consistent with the appropriate hazardous locations certifications Do not remove the transmitter cover in explosive atmospheres when the circuit is alive 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 Both transmitter covers must be fully e...

Страница 14: ...ee Changing Hardware Switch Settings on page 2 3 Failure Mode If the Model 8732C experiences a catastrophic failure in the electronics the current output can be driven high 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 Externally Powered The Model 8732C 4 20 mA loop may be powered internally or by an external power supply The...

Страница 15: ...ning the electronics housing make every attempt possible to carry out these procedures away from the plant environment to protect the electronics 1 Disconnect power to the transmitter 2 Unscrew and remove the electronics cover 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 FIG...

Страница 16: ...n 90 increments This can be done by loosening the four mounting bolts on the bottom of the housing rotating the housing and reinstalling the bolts Be sure the surface is clean and there is not a gap when returning the housing to its original position The LOI can also be rotated in 90 increments This should be performed prior to installing the magnetic flowmeter system Refer to LOI Rotation on page...

Страница 17: ...derations DC Power Requirements Units powered with 15 30 V dc may draw up to 2 amps of current As a result the input power wire must meet certain gauge requirements Table 2 1 and Table 2 2 show the maximum wire length for corresponding supply voltages wire gauges and wire type TABLE 2 1 Length of Annealed Copper Wires TABLE 2 2 Length of Hand drawn Copper Wires Types of Power Supply Wires Maximum ...

Страница 18: ... in ambients in excess of 60 C 140 F use wire rated to at least 90 C 194 F Disconnects The supply wires should be connected to the device through an external disconnect or circuit breaker The disconnect or circuit breaker should be clearly labeled and located near the transmitter Overcurrent Protection Model 8732 requires overcurrent protection of the supply lines Maximum rating of overcurrent dev...

Страница 19: ... transport the system to the installation site in the original shipping containers The flowtube is shipped with end covers to protect it from mechanical damage and normal unrestrained distortion End covers should not be removed until just before installation Keep shipping plugs in conduit connections until conduits are connected and sealed All flowtube liners are vulnerable to handling damage Neve...

Страница 20: ...ted at the factory and need no further calibration during installation Upstream Downstream Piping To ensure specific accuracy over widely varying process conditions install the flowtube with a minimum of five straight pipe diameters upstream and two pipe diameters downstream from the electrode plane as shown in Figure 2 5 This flowtube placement is usually adequate to allow for disturbances create...

Страница 21: ...o ensure that the flowtube remains full Horizontal Installation Horizontal installation should be restricted to low piping sections that are normally full Orient the electrode plane to within 45 degrees of horizontal in horizontal installations A deviation of more than 45 degrees of horizontal would place an electrode at or near the top of the flowtube making it more susceptible to insulation by a...

Страница 22: ...sure is inadequate to ensure that the flowtube remains full The electrodes in the Model 8711 are properly oriented when the top of the flowtube is either vertical or horizontal as shown in Figure Avoid any mounting orientation that positions the top of the flowtube at 45 from the vertical or horizontal position Model 8711 Mounting Position Flow B 8705 0005A01E 0005A01F FIGURE 2 8 Incline or Declin...

Страница 23: ...acent equipment or piping The gasket material selected must be compatible with the process fluid and operating conditions and must not damage the liner NOTE To avoid possible flowtube damage do not use metallic or spiral wound gaskets FIGURE 2 9 Flow Direction 8705 0005G01A Flow Direction Arrow Flow FLANGE GASKETS FOR ALL OTHER FLOWTUBES FLANGE GASKETS WITH NON ATTACHED GROUNDING RINGS Grounding R...

Страница 24: ... damage to the flowtube lining and possible flowtube replacement Always check for leaks after tightening flange bolts All flowtubes require a second torquing 24 hours after initial flange bolt tightening TABLE 2 3 Model 8705 Flange Bolt Torque Specifications Torque the flange bolts in increments according to the above numerical sequence 8701 0589A 4 Bolt 8 Bolt 12 Bolt 14 Bolt 20 Bolt FIGURE 2 11 ...

Страница 25: ...Sleeves Alignment with Centering Rings 1 Insert the two studs for the bottom side of the flowtube between the pipe flanges 2 Place the two centering rings over each end of the flowtube 3 Place the flowtube between the flanges Make sure that the centering rings are properly placed in the studs The studs should be aligned with the markings on the rings that correspond to the flange you are using 4 I...

Страница 26: ...g sleeves between the flanges 3 Insert the remaining studs 4 Install the washers and nuts 5 Tighten the nuts to the specifications listed in Table 2 4 TABLE 2 4 Flange Bolt Torque Specifications 4 Bolt 8 Bolt 12 Bolt 1 12 10 11 9 5 3 7 2 6 4 8 1 5 3 7 2 6 4 8 1 3 2 4 Torque the flange bolts in increments according to the above numerical sequence FIGURE 2 13 Model 8711 Flange Bolt Torquing Sequence...

Страница 27: ...Type of Pipe No Grounding Options Grounding Rings Grounding Electrodes Lining Protectors Conductive Unlined Pipe See Figure 2 14 Not Required Not Required See Figure 2 15 Conductive Lined Pipe Insufficient Grounding See Figure 2 16 See Figure 2 14 See Figure 2 15 Non conductive Pipe Insufficient Grounding See Figure 2 18 See Figure 2 19 See Figure 2 17 Earth Ground 0281A02A FIGURE 2 14 Model 8705 ...

Страница 28: ... 8705 Grounding for Conductive Lined Pipe with Grounding Rings Earth Ground Lining Protector Tab 8732 00281K02A Lining Protectors FIGURE 2 17 Model 8705 Grounding for Non Conductive Pipe with Lining Protectors 8732 0281L02A Grounding Rings Earth Ground FIGURE 2 18 Model 8705 Grounding for Non Conductive Pipe with Grounding Rings ...

Страница 29: ...unding Options Type of Pipe No Grounding Options Grounding Rings Grounding Electrodes Conductive Unlined Pipe See Figure 2 20 Not Required Not Required Conductive Lined Pipe Insufficient Grounding See Figure 2 21 See Figure 2 20 Non conductive Pipe Insufficient Grounding See Figure 2 22 See Figure 2 23 8711 0360A01C FIGURE 2 20 Model 8711 Grounding for Conductive Unlined Pipe and Grounding for Con...

Страница 30: ... FIGURE 2 21 Model 8711 Grounding for Conductive Lined Pipe with Grounding Rings 8711 03660a01B Earth Ground Grounding Rings FIGURE 2 22 Model 8711 Grounding for Non Conductive Pipe with Grounding Rings 8711 0368A01A Earth Ground FIGURE 2 23 Model 8711 Grounding for Non Conductive Pipe with Grounding Electrodes ...

Страница 31: ... in Transmitter Input Power on page 2 5 2 Turn off the power source 3 Open the power terminal cover 4 Run the power cable through the conduit to the transmitter 5 Loosen the terminal cable guard for the input power terminals L1 and N or dc and dc 6 Connect the power cable leads as follows For an ac powered transmitter Connect ac Ground to a grounding lug Connect ac Neutral to terminal N Connect ac...

Страница 32: ...st be connected across a minimum of 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 If your application uses the exte...

Страница 33: ...ustable Maximum Power 5 75 watts Switch Closure Bi directional MOFSET If your application uses the pulse output option complete the following steps to connect the power source to the transmitter 1 Ensure that the power source and connecting cable meet the requirements outlined above 2 Turn off the transmitter and pulse output power sources 3 Run the power cable into the transmitter 4 Connect the t...

Страница 34: ...r cable into the transmitter 4 Connect the two wires that convey switch closure information to the positive and negative terminals NOTE If dc power is used it is preferred to connect dc to terminal and dc to terminal QUICK START UP Once the magnetic flowmeter system is installed and communication is established final configuration of the transmitter must be completed You may perform these function...

Страница 35: ...lations ensure that process fluid is flowing up into the flowtube to keep the electrodes covered by process fluid 3 Ensure that the grounding straps on the flowtube are connected to grounding rings lining protectors or the adjacent pipe flanges Improper grounding will cause erratic operation of the system Process Fluid 1 Process fluid conductivity should be 5 µmhos per centimeter minimum 2 Process...

Страница 36: ...e compartments from outside the flowtube drainports are provided in each cover for the removal of fluid The electrode compartment could contain full line pressure and it must be depressurized before the cover is removed Removing the cover before depressurizing may result in death or serious injury If it is necessary to capture any process fluid leakage for fugitive emission control connect the app...

Страница 37: ...essure inside the flowtube housing exceeds 5 psi Additional piping provided by the user may be connected to this relief valve to drain any process leakage to safe containment see Figure 2 28 In the event of a process leak these models will not protect the coils or other sensitive areas of the flowtube from exposure to the pressure fluid NPT Optional Plumb to an area consistent with the type of pro...

Страница 38: ...emove the electrode assembly from the flowtube 1 Loosen and remove the screws that secure the electrode cover 2 Remove the electrode cover and o rings It is generally recommended that new o rings be installed upon reassembly 3 Loosen and remove the screw that secures the signal wire to the electrode 4 Remove the retaining nut 5 Take the electrode from the electrode housing by pulling it out with f...

Страница 39: ...2 27 Installation ...

Страница 40: ...Rosemount Model 8732C Integral Mount Magnetic Flowmeter System 2 28 ...

Страница 41: ...ssages before performing an operation preceded by this symbol Explosions could result in death or serious injury Verify that the operating atmosphere of the flowtube and transmitter is consistent with the appropriate hazardous locations certifications Do not remove the transmitter cover in explosive atmospheres when the circuit is alive Both transmitter covers must be fully engaged to meet explosi...

Страница 42: ... Interface TABLE 3 1 LOI Keys and Functions 8732 0031A01A Transmitter Parameter Keys Transmitter Parameter Keys Key Press Indicator Liquid Crystal Display LOI Key Function Performed Enter Moves to the previous display field Starts the totalizing function if it is stopped and stops the function if it is running Moves the cursor to the next higher field Changes user selected variables in a field to ...

Страница 43: ...ngaged 7 Position the LOI in a preferred 90 rotation and carefully press LOI into the pin assembly NOTE Misalignment may cause permanent pin damage 8 Fasten the two screws that attach the LOI to the main circuit assembly 9 Replace the LOI cover Data Entry The LOI keypad has no numerical keys Enter numerical data using the following procedure 1 Access the appropriate function 2 Use to highlight the...

Страница 44: ...number Values are entered one character at a time using the data entry keys Table Value Example Setting the TUBE SIZE 1 Access the tube size through basic setup 2 Press or to increment the tube size to the next value 3 When you reach the desired size press E 4 Set the loop to manual if necessary and press E again After a moment the LCD will display the new tube size and the maximum flow rate Selec...

Страница 45: ...ig Out Config Special Units Coil Frequency Sig Processing End of List Xmtr Test Loop Test Pulse Test End of List 4 20 mA Trim Auto Zero Gain Trim Error Messages Xmtr Tag Xmtr S N Software Rev Description Messages Flowtube Tag Flowtube S N Liner Material Electrode Type Electrode Material Flange Type Flange Material URV Configure LRV Configure Dig Out Select Pulse Output Aux Output Sig Processing Co...

Страница 46: ...version and time base for special units Coil Frequency Specifies coil drive frequency of 6 or 30 Hz Sig Processing Specifies signal processing status on off and sets signal processing parameters Transmitter Test XMTR Test Performs a test of the transmitter electronics Loop Test Drives the transmitter analog output to a user specified value Pulse Test Drives the transmitter digital output to a user...

Страница 47: ...nicator see Appendix A HART Communicator or a control system Configuration variables may be changed at any time and specific instructions are provided through on screen instructions Set up Parameters Page Basic Configuration 4 4 Special Units Configuration 4 5 Analog Output Configuration 4 6 Digital Output Configuration 4 8 Totalizer Configuration 4 11 Noise Reduction 4 12 Calibration 4 14 Transmi...

Страница 48: ...smitter cover in explosive atmospheres when the circuit is alive Before connecting a HART based communicator in an explosive atmosphere make sure the instruments in the loop are installed in accordance with intrinsically safe or non incendive field wiring practices Do not make connections to the HART Communicator s serial port or NiCad recharger jack in an explosive atmosphere Both transmitter cov...

Страница 49: ... of your flowmeter When commissioning a flowmeter review each process variable its function and output If you suspect a problem with the digital outputs you may need to reconfigure the transmitter or check the troubleshooting table in Section 5 Troubleshooting PV Process Variable is the actual configured flow rate in the line On the bench the PV value should be zero Check the units on the PV to ma...

Страница 50: ...res the value will be rounded to match the nearest choice The tube size choices available are as follows 0 15 0 30 0 50 1 1 5 2 3 4 6 8 10 12 14 16 18 20 24 30 36 42 48 54 60 inches NOTE The second line on the LOI screen MAX FLOW is strictly for informational purposes and indicates the maximum flow rate for a given line size Tube Cal Number The tube calibration number is a 16 digit number used to ...

Страница 51: ...convert base units to special units For a straight conversion of volume units from one to another the conversion number is the number of base units in the new unit For example if you are converting from gallons to barrels and there are 31 gallons in a barrel the conversion factor is 31 Base Time Unit Base Time Unit provides the time unit from which to calculate the special units For example if you...

Страница 52: ...ange the size of the range or span between the URV and LRV Under normal circumstances the LRV should be set to a value near the minimum expected flow rate to maximize resolution LRV must be between 30 ft s to 30 ft s NOTE The LRV can be set to a value greater than the URV which will cause the analog output to operate in reverse In this mode the analog output will increase with lower more negative ...

Страница 53: ... Enter the 4 mA meter value when prompted to do so 5 Enter the 20 mA meter value when prompted to do so 6 Return the loop to automatic control if necessary The 4 20 mA trim is now complete You may repeat the 4 20 mA trim to check the results or use the analog output test Loop Test The Loop Test allows you to drive the transmitter output to a desired electric current output on the 4 20 mA terminals...

Страница 54: ...t the Model 8732C to pulse every time 0 01 gallons pass through the flowtube and the flow rate is 1000 gal min you will exceed the 1000 Hz full scale limit The best choice for this parameter depends upon the required resolution the number of digits in the totalizer the extent of range required and the maximum counter input frequency NOTE When totalizing on the LOI the maximum total value is 1 000 ...

Страница 55: ...a pulse width of 0 5 ms the maximum output would be 1000 Hz At the maximum frequency output there is a 50 percent duty cycle To achieve the greatest maximum frequency output set the pulse width to the lowest value that is consistent with the requirements of the pulse output power source pulse driven external totalizer or other peripheral equipment HART Fast Keys 1 4 3 3 2 LOI Detailed Setup Pulse ...

Страница 56: ...ume the pulse width 0 5 ms Example Set the pulse output scaling to get the most accurate reading from the totalizer highest resolution The 20 mA point 3 000 gpm Hint Range 1000 Hz to full scale analog reading Frequency Flow Rate gpm 60 s min Pulse Scaling gal pulse 350 gpm 60 s min 1 gal pulse 5 833 Hz Pulse Scaling Flow Rate gpm 60 s min Frequency 3000 gpm 60 s min 1000Hz 0 05 gal pulse 1 Pulse 0...

Страница 57: ...pped with the non volatile totalizer option Net Gross Net Gross shows both net and gross total values It updates continuously The net value can be reset by the operator The gross value cannot be reset by using the button Reset it indirectly by doing one of the following Change the pulse scaling Change the tube size Change the units Power down a transmitter that is not equipped with the non volatil...

Страница 58: ... the auto zero procedure The transmitter completes the procedure automatically in about two minutes A symbol appears in the lower right hand corner of the display to indicate that the procedure is running Low Flow Cutoff Low Flow Cutoff allows you to specify the flow rate between 0 001 and 1 0 foot per second below which the outputs are driven to zero flow The units format for low flow cutoff cann...

Страница 59: ...to deviation from the running average For example if the running average is 100 gal min and a 2 percent maximum limit is selected then the acceptable range is from 98 to 102 gal min Values within the limit are accepted while values outside the limit are analyzed to determine if they are a noise spike or an actual flow change Time Limit 0 to 256 Seconds This parameter forces the output and running ...

Страница 60: ...ube with the Model 8714D you must change the following parameters in the Model 8732C Tube Calibration Number 1000015010000000 Units ft s Upper Range Value 20 mA 30 00 ft s Lower Range Value 4 mA 0 ft s Coil Frequency 6 Hz The instructions for changing these parameters are located in the parameter descriptions in this section Set the loop to manual if necessary before you begin Complete the followi...

Страница 61: ... transmitter environments and provides 16 characters Message Message Variable provides an even longer user defined variable for identification and other purposes It provides 32 characters of information and is stored with the other configuration data Date Date is a user defined variable that provides a place to save the date of the last revision of configuration information Flowtube Tag Flowtube T...

Страница 62: ...rode type for your magnetic transmitter system This variable needs to be changed only if you have replaced electrodes in the hardware Standard Std and Ground Bullet Other Electrode Material Electrode Material enables you to select the electrode material for your magnetic transmitter system This variable needs to be changed only if you have replaced electrodes in the hardware 316L SST Hast C 276 Ta...

Страница 63: ... 600 ANSI 900 PN 10 PN 16 PN 25 PN 40 PN 64 Flangeless Other Flange Material Flange Material is a factory set configuration variable that reflects the construction of your flowtube Carbon steel 304 SST 316L SST Flangeless Other For flowtubes without flanges this screen can be ignored or used to indicate the adjacent pipe flange material HART Fast Keys 1 4 5 LOI Device Information HART Fast Keys 1 ...

Страница 64: ...e update rate necessary from each transmitter the combination of transmitter models and the length of the transmission line Multidrop installations are not recommended where intrinsic safety is a requirement Communication with the transmitters can be accomplished with commercially available Bell 202 modems and a host implementing the HART protocol Each transmitter is identified by a unique address...

Страница 65: ...e transmitter addresses to which it is connected If the address is 0 the HART Communicator enters its normal on line mode If it detects an address other than 0 the communicator finds each device in the loop and lists them by poll address and tag number Use the action keys to scroll through the list and select the transmitter with which you need to communicate If a single connected device has an ad...

Страница 66: ...Rosemount Model 8732C Integral Mount Magnetic Flowmeter System 4 20 ...

Страница 67: ...e and transmitter is consistent with the appropriate hazardous locations certifications Do not remove the transmitter cover in explosive atmospheres when the circuit is alive 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 Both transmitter covers ...

Страница 68: ... Size on page 4 4 Output at alarm level Electronics failure Cycle power If alarm is still present replace the electronics boards Pulse output at zero regardless of flow No power to transmitter Check power source and connection to the transmitter Wiring error Check pulse output wiring at digital output terminals Refer to wiring diagram for pulse output Reverse flow Enable Reverse Flow function Puls...

Страница 69: ...gnetic Flowmeter System TABLE 5 2 Advanced Troubleshooting Model 8732C Accuracy Symptom Potential Cause Corrective Action Reading doesn t appear to be within rated accuracy Transmitter control system or other receiving device not configured properly Check all configuration variables for the transmitter flowtube communicator and or control system See Process Variables on page 4 3 Check these other ...

Страница 70: ...5 3 Move injection point downstream of magnetic flowmeter or move magnetic flowmeter Sludge flows Mining Coal Sand Slurries other slurries with hard particles Decrease flow rate below 10 ft s Styrofoam or other insulating particles in process Complete the Noisy Conditions Basic Procedure page 5 3 Consult factory Electrode coating Use replaceable electrodes in Model 8705 Use a smaller flowtube to i...

Страница 71: ...ing the lowest ohms scale The reading should be between 2 and 18 V A reading outside this range indicates that the coils or cables are open or shorted Test B Coil Shield to Coil Step 1 Step 2 Step 3 Remove transmitter Take all readings across flowtube terminals Measure the resistance from the coil shield ground to wires 1 and 2 using the highest ohms scale Both readings should be overrange Any rea...

Страница 72: ...r System 5 6 To Flowtube Chassis 8705 0007E04A Coil 50 kV both Coil FIGURE 5 1 Model 8705 Flowtube Circuit Diagram to Transmitter to Transmitter Shield Electrodes Coil 8711 0371A FIGURE 5 2 Model 8711 Magnetic Flowmeter Flowtube Circuit Diagram 50 kV both ...

Страница 73: ...d will provide a Return Material Authorization RMA number The center will also ask for the name of the process material to which the product was last exposed Mishandling products exposed to a hazardous substance may result in death or serious injury If the product being returned was exposed to a hazardous substance as defined by OSHA a copy of the required Material Safety Data Sheet MSDS for each ...

Страница 74: ...Rosemount Model 8732C Integral Mount Magnetic Flowmeter System 5 8 ...

Страница 75: ...wered 0 to 1000 ohm load On the digital output terminals a scalable frequency output is available 0 to 1000 Hz transistor switch closure up to 5 75 W externally powered 5 to 24 V ac or dc HART Communications digital flow signal superimposed on 4 20 mA signal available for control system interface 250 ohms required for HART Communications Analog Output Adjustment Engineering units lower and upper r...

Страница 76: ...ed current between 3 75 and 23 25 mA Frequency Source Transmitter can be commanded to supply a specified frequency between 1 and 1000 Hz Turn on Time 30 minutes to rated accuracy from power up 5 seconds from power interruption Start up Time 0 2 seconds from zero flow Low Flow Cutoff Adjustable between 0 001 and 1 ft s 0 003 and 0 3 m s Below selected value output is driven to the zero flow rate si...

Страница 77: ...nce Specifications System specifications are given using the frequency output and with the unit at reference conditions Accuracy With Model 8705 Flowtube System accuracy is 0 5 of rate from 1 to 30 ft s 0 3 to 10 m s below 1 0 ft s 0 3 m s the system has an accuracy of 0 005 ft s 0 0015 m s Analog output has the same accuracy as frequency output plus an additional 0 05 of span With Model 8711 Flow...

Страница 78: ...NG INFORMATION 1 Custom Configuration C1 Option When specifying custom configuration code C1 refer to Configuration Data Sheet 00806 0100 4668 and provide the additional information as requested 2 Non volatile Totalizer Non volatile totalizer will retain totalizer data during power interruption When power resumes totalizing will continue t Model Description 8732C Magnetic Flowmeter Transmitter Cod...

Страница 79: ...t Housing Assembly does not include terminal block assembly 9 08732 0004 0001 Standard Housing Cover without glass for LOI 10 08732 0005 0001 Local Operator Interface LOI Assembly does not include LOI cover 11 08732 0006 0002 LOI Cover 12 08732 0007 0002 Electrical Connection Assembly Flowtube to transmitter 13 08732 0133 0001 Model 8732C Non Volatile Totalizer Chip C53641 0003 Transmitter and Flo...

Страница 80: ...Rosemount Model 8732C Integral Mount Magnetic Flowmeter System 6 6 ...

Страница 81: ... nameplate has a multi digit calibration number that can be entered into any Series 8712 or 8732C Transmitter through the local operator interface LOI or the HART Communicator No further calibration is necessary Upper Range Limit 30 ft s 10 m s Process Temperature Limits Special Conditions At process temperatures X F 100 C the flowmeter must be used with heat resistant cables with a temperature ra...

Страница 82: ...its Process liquid must have a conductivity of 5 microsiemens cm 5 micromhos cm or greater Excludes the effect of interconnecting cable length in remote mount transmitter installations Pressure Limits See Table 7 2 MeterSize inches MaximumAmbient Temperature Maximum Process Temperature Temperature Class 149 F 65 C 240 F 116 C T3 1 1 149 F 65 C 95 F 35 C 248 F 120 C 95 F 35 C T3 T4 1 1 149 F 65 C 1...

Страница 83: ...Steel 275 190 205 240 240 255 Class 300 Carbon Steel 740 645 655 685 685 705 DIN Flanges Line Sizes 15 80 mm Pressure in Bars Flange Rating All Liners 100 F 37 8 C PTFE Teflon Liner 350 F 177 C ETFE Tefzel Liner 300 F 149 C Natural Rubber Liner 185 F 85 C Neoprene Liner 185 F 85 C Polyurethane Liner 150 F 66 C PN 10 40 29 5 24 8 27 7 29 5 29 5 29 5 DIN Flanges Line Sizes 100 600 mm 1 Pressure in B...

Страница 84: ...y C 276 tantalum platinum 10 iridium titanium Process Connections AISI Type 304 SST includes ANSI Class 150 flange to Tri Clover Tri Clamp 3 A quick disconnect ferrule Process Connections ANSI Class 150 or ANSI Class 300 through 24 inch AWWA Class 125 30 and 36 inch DIN PN 10 16 25 and 40 PN40 Standard Flange for 15 80 mm PN16 Standard Flange for 100 150 mm PN10 Standard Flange for 200 600 mm Elec...

Страница 85: ...5 19 0 88 22 8 5 8 8 6 inch 150 lb 6 inch 300 lb 8 50 216 8 50 216 5 50 140 6 25 159 11 81 300 13 06 332 14 39 366 14 39 366 10 41 264 10 41 264 8 05 204 8 05 204 9 50 241 10 62 270 0 88 22 0 88 22 8 12 8 inch 150 lb 8 inch 300 lb 10 62 270 10 62 270 6 75 171 7 50 191 13 78 350 15 60 396 16 33 415 16 33 415 11 38 289 11 38 289 9 02 229 9 02 229 11 75 298 13 00 330 0 88 22 1 00 25 8 12 7 8 10 inch ...

Страница 86: ...5 13 98 26 1 02 12 250 mm PN 25 335 13 19 213 8 39 381 15 00 485 19 11 432 17 00 265 10 44 370 14 67 30 1 18 12 250 mm PN 40 345 13 58 225 8 86 435 17 13 485 19 11 432 17 00 265 10 44 385 15 16 33 1 30 12 300 mm PN 10 370 14 57 223 8 76 457 18 00 540 21 27 487 19 16 265 10 44 400 15 75 22 0 87 12 300 mm PN 16 378 14 88 230 9 06 457 18 00 540 21 27 487 19 16 293 11 52 410 16 14 26 1 02 12 300 mm PN...

Страница 87: ...0 3 00 76 9 00 229 5 56 141 13 78 350 3 150 lb 4 00 100 3 75 95 12 00 305 6 57 167 13 78 350 Nominal Line Size 1 Inches mm Flowtube Flange Rating Flowtube Weight lb kg ANSI DIN 15 15 150 300 PN 40 20 9 22 10 1 25 1 25 150 300 PN 40 20 9 22 10 1 40 1 40 150 300 PN 40 22 10 24 11 2 50 2 50 150 300 PN 40 26 12 28 13 3 80 3 80 150 300 PN 40 40 18 47 21 4 100 4 100 150 300 PN 16 48 22 65 30 6 150 6 150...

Страница 88: ...ensions are in inches millimeters See Table 7 3 and 7 4 for variable dimensions 2 00 51 2 00 51 0 66 17 1 35 34 E 8705 1002A06A 1002B06A FIGURE 7 2 Dimensional Drawing of Model 8705 Flowtubes Typical of 6 through 36 inch 150 900 mm Line Sizes B NOTES Dimensions are in inches millimeters Consult factory for larger line sizes See Table 7 3 and 7 4 for variable dimensions 4 75 121 C L A D 2 00 51 2 0...

Страница 89: ...0 080 100 120 140 160 180 200 240 300 360 inch 15 mm 1 inch 25 mm 1 inch 40 mm 2 inch 50 mm 3 inch 80 mm 4 inch 100 mm 6 inch 150 mm 8 inch 200 mm 10 inch 250 mm 12 inch 300 mm 14 inch 350 mm 16 inch 400 mm 18 inch 450 mm 20 inch 500 mm 24 inch 600 mm 30 inch 750 mm 36 inch 900 mm Code Flange Material Type and Rating C1 C3 S1 S3 CD CE CF CH SD SE SF SH Carbon Steel ANSI Class 150 AWWA Class 125 30...

Страница 90: ...1 H1 B1 B3 KD Q4 Q5 Q8 Q9 A3 Standard sealed welded housing without sealed electrode compartments 1 Not available with field removable electrodes Option Code R Flowtube with Model 8701 lay length Available for through 16 inch 15 400 mm line sizes For through 4 inch 15 100 mm sizes the flowtube is shipped with a spool piece Integral Mount with Model 8712C Transmitter Integral Mount with Model 8732C...

Страница 91: ...ough 8 inch 15 200 mm line sizes 20 to 200 F 29 to 93 C for 0 15 and 0 3 inch 4 and 8 mm line sizes TABLE 8 1 Relation Between Ambient Temperature Process Temperature and Temperature Class MeterSize inches MaximumAmbient Temperature Maximum Process Temperature Temperature Class 149 F 65 C 240 F 116 C T3 1 1 149 F 65 C 95 F 35 C 248 F 120 C 95 F 35 C T3 T4 1 1 149 F 65 C 140 F 60 C 257 F 125 C 140 ...

Страница 92: ...T6 See Table 8 1 Maximum Safe Working Pressure at 100 F 38 C Tefzel Lining Full vacuum to 740 psi 5 1 MPa for through 8 inch 15 200 mm flowtubes 285 psi 1 96 MPa for 0 15 and 0 30 inch 4 and 8 mm flowtubes Performance Specifications System specifications are given using the frequency output and with the unit at referenced conditions Accuracy with Model 8712C U or Model 8732C Transmitters 0 5 of ra...

Страница 93: ...nium and tantalum Grounding Electrode A grounding electrode is installed similarly to the measurement electrodes through the flowtube lining It is available in 316L stainless steel Hastelloy C 276 titanium tantalum or platinum Weight See Table 8 2 1 0 15 and 0 30 inch 4 and 8 mm flowtubes mount between inch 13 mm flange TABLE 8 2 Flowtube Dimensions and Weight Nominal Line Size Inches mm Flowtube ...

Страница 94: ...6 17 1 35 34 C B A 0 50 13 Flow 4 75 121 D Grounding Clamp Nameplate Wiring Connection Cover 1 5 THROUGH 8 INCH LINE SIZES 8711 1012B04A A04A B03A A03A 0 15 THROUGH 1 INCH LINE SIZES NOTES Dimensions are in inches millimeters See Table 8 2 for variable dimensions Flow D FIGURE 8 1 Model 8711 Dimensional Drawings 4 75 121 0 5 13 1 35 34 0 66 17 2 00 51 ...

Страница 95: ... 6 0 150 8 0 200 Code Transmitter Mounting Configuration R S U Remote 2 inch Pipe or Surface Mount Integral with Model 8712C Transmitter Integral with Model 8732C Transmitter Code Mounting Kit 1 2 3 4 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 Code Option E5 G1 G2 G3 G4 CD Q4 Q8 Q9 Factory Mutual FM ...

Страница 96: ...Rosemount Model 8732C Integral Mount Magnetic Flowmeter System 8 6 ...

Страница 97: ...ore performing any operation described in this section Explosions could result in death or serious injury Verify that the operating atmosphere of the flowtube and transmitter is consistent with the appropriate hazardous locations certifications Do not remove the transmitter cover in explosive atmospheres when the circuit is alive Before connecting a HART based communicator in an explosive atmosphe...

Страница 98: ...ne Menu 1 View Status 2 Self Test 1 D A Trim 2 Scaled D A Trim 3 Electronics Trim 4 Auto Zero Trim 1 ANALOG OUTPUT 2 Aux Pulse Output Control 3 PULSE OUTPUT 4 AUX OUTPUT 5 TOTALIZER 6 HART OUTPUT 1 Pulse Output Scaling 2 Pulse Width 3 Pulse Output Test 1 Poll Address 2 Preambles 3 Burst Mode Control 4 Burst Option 1 Gross Totalized Value 2 Net Totalized Value 3 Reverse Totalized Value 4 Start Tota...

Страница 99: ...Flow Units 1 4 2 Gross Totalized Value 1 4 1 Line Size 1 3 5 Loop Test 1 2 2 Low Flow Cutoff 1 4 4 1 Lower Range Value 1 3 4 Function HART Fast Key Message 1 4 5 4 Net Totalized Value 1 4 2 Number Requested Preams 1 4 3 6 2 Poll Address 1 4 3 6 1 Process Variables PV 1 1 Pulse Output 1 1 5 Pulse Output Loop Test 1 2 3 Pulse Scaling 1 4 3 3 1 Pulse Width 1 4 3 3 2 PV Percent Range 1 1 2 PV Unit 1 3...

Страница 100: ...ection ports on the rear panel of the HART Communicator see Figure A 2 The connections are non polarized Do not make connections to the serial port or NiCad recharger jack in an explosive atmosphere Before connecting the HART Communicator in an explosive atmosphere make sure the instruments in the loop are installed in accordance with intrinsically safe or nonincendive field wiring practices Loop ...

Страница 101: ...irectly FIGURE A 3 Connecting the HART Communicator to a Transmitter Loop Power Supply Current Meter RL 250V 8712 8712Q11A Fuse 4 20 mA 4 20 mA FIGURE A 4 Connecting the HART Communicator with the Optional Load Resistor Optional 250 ohm load resistor 8712 0068A 0275B01A Fuse 4 20 mA 4 20 mA Model 8732C NOTE Loop must be broken to insert the optional 250 ohm resistor ...

Страница 102: ...gnetic Flowmeter System A 6 BASIC FEATURES The basic features of the HART Communicator include Action Keys Function Keys and Alphanumeric and Shift Keys Function Keys Action Keys Alphanumeric Keys Shift Keys FIGURE A 5 The HART Communicator ...

Страница 103: ...enu HOT Key Use this key to quickly access important user defined options when connected to a HART compatible device Pressing the Hot Key turns the HART Communicator on and displays the Hot Key Menu See Customizing the Hot Key Menu in the HART Communicator manual for more information Function Keys Use the four software defined function keys located below the LCD to perform software functions On an...

Страница 104: ... functions Instead of stepping your way through the menu structure using the Action Keys you can press a HART Fast Key Sequence to move from the Online Menu to the desired variable or function On screen instructions guide you through the rest of the screens HART Fast Key Example The HART Fast Key sequences are made up of the series of numbers corresponding to the individual options in each step of...

Страница 105: ...ter data to the HART Communicator Changes in on line data are made active by pressing SEND F2 The transfer function is used only for off line data retrieval and sending Frequency Device The Frequency Device option displays the frequency output and corresponding pressure output of current to pressure transmitters Utility The Utility option provides access to the contrast control for the HART Commun...

Страница 106: ... edit format Exceed precision Indicates that the precision for the current arithmetic variable exceeds the device specified description edit format Ignore next 50 occurrences of status Asked after displaying device status Softkey answer determines whether next 50 occurrences of device status will be ignored or displayed Illegal character An invalid character for the variable type was entered Illeg...

Страница 107: ...t been set by the user These variables should be set or invalid values may be sent to the device There is unsent data Send it before shutting off Press YES to send unsent data and turn the HC off Press NO to turn the HC off and lose the unsent data Too few data bytes received Command returns fewer data bytes than expected as determined by the device description Transmitter Fault Device returns a c...

Страница 108: ...Rosemount Model 8732C Integral Mount Magnetic Flowmeter System A 12 ...

Страница 109: ...ing safety messages before performing any operation described in this section Explosions could result in death or serious injury Verify that the operating atmosphere of the flowtube and transmitter is consistent with the appropriate hazardous locations certifications Do not remove the transmitter cover in explosive atmospheres when the circuit is alive Before connecting a HART based communicator i...

Страница 110: ... A Model 8732C Integral Mount Magnetic Flowmeter System requires a supply of ac power only at the transmitter and not at the flowtube Check the power service requirements on the transmitter identification tag Bypass Piping Bypass piping may be desirable to allow isolating the flowtube for servicing cleaning and replacement Two configurations are shown in Figures B 1 and B 2 Figure B 2 illustrates ...

Страница 111: ...aneuverability during installation and removal Note that integrally mounted transmitters require more space at the flowtube site Earth Ground Specification accuracy and safety considerations require flowtube grounding Low Noise Environment Although a pulsed dc coil design reduces flowtube susceptibility to extraneous noise some environments are more suitable than others Avoid a close proximity to ...

Страница 112: ...is unimportant in vertical installations NOTE Avoid downward vertical flows where back pressure is inadequate to ensure that the flowtube remains full Horizontal Installation Horizontal installation should be restricted to low piping sections that are normally full Orient the electrode plane to within 45 degrees of horizontal in horizontal installations A deviation of more than 45 degrees of horiz...

Страница 113: ... 39 679 Velocity 7 56 ft s Example English Units Magmeter Size 100 mm factor from Table B 2 495 73 Normal Flow Rate 800 l min Velocity 800 l min 495 73 Velocity 1 61 m s Example SI Units u Nominal Line Size Inches mm Gallons Per Minute Factor Liters Per Minute Factor 0 15 4 0 055 0 687 0 30 8 0 220 2 750 15 0 947 11 834 1 25 2 693 33 657 1 40 6 345 79 297 2 50 10 459 130 67 3 80 23 042 287 88 4 10...

Страница 114: ...D VELOCITY ft s FLUID VELOCITY m s 8705 0141C 10 20 50 100 200 500 1K 2K 5K 10K 20K 30K 50K 100K 200K 10 100 1K 10K 20K 40K 60K 80K 150K 300 FIGURE B 4 Fluid Velocity vs Rate Curves for Model 8711 8711 0369A FLUID VELOCITY ft s FLOW RATE gallons minute FLUID VELOCITY m s FLOW RATE liters minute 1 2 5 10 20 50 100 200 500 1000 2000 5000 10 000 20 000 01 1 1 10 100 1 000 10 000 ...

Страница 115: ...24 107 55 305 91 720 36 2 50 3 80 4 100 0 418 0 922 1 588 10 459 23 042 36 679 313 77 691 26 1 190 4 1 582 3 490 6 010 39 598 87 237 150 22 1 187 7 2 616 7 4 506 0 6 150 8 200 10 250 3 600 6 240 9 840 90 048 155 94 245 78 2 701 4 4 677 8 7 373 4 13 620 23 620 37 240 340 92 590 39 930 52 10 226 17 707 27 911 12 300 14 350 16 400 14 200 16 800 22 000 352 51 421 70 550 80 10 575 12 651 16 524 53 400 ...

Страница 116: ...Rosemount Model 8732C Integral Mount Magnetic Flowmeter System B 8 ...

Страница 117: ...e 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 Both transmitter covers must be fully engaged to meet explosion proof requirements Failure to follow safe installation and servicing guidelines could result in death or serious injury Make sure only quali...

Страница 118: ...il drive mode to 30 Hz Auto Zero To ensure optimum accuracy when using 30 Hz coil drive mode there is an auto zero function that must be initiated during start up The auto zero operation is also discussed in the start up and configuration sections When using 30 Hz coil drive mode it is important to zero the system for the specific application and installation The auto zero procedure should be perf...

Страница 119: ...the average Values within the limit are accepted while value outside the limit are scrutinized to determine if they are a noise spike or an actual flow change Factory Preset Value 2 percent 3 Time Limit Forces the output and running average values to the new value of an actual flow rate change that is outside the percent limit boundaries thereby limiting response time to real flow changes to the t...

Страница 120: ... above the input is outside the tolerance band This first signal is held in memory and compared to the next signal The next signal is also outside the tolerance band in the same direction so the stored value is added to the running average as the next input and the running average begins to slowly approach the new input level To avoid waiting for the slowly incrementing average value to catch up t...

Страница 121: ...wmeter and Faraday s law Field coils placed on opposite sides of the pipe generate a magnetic field As the conductive process liquid moves through the field with average velocity V electrodes sense the induced voltage The width of the conductor is represented by the distance between electrodes An insulating liner prevents the signal from shorting to the pipe wall The only variable in this applicat...

Страница 122: ...electrodes into a usable signal for process control or monitoring The pulsed dc design of the Series 8700 System makes this signal particularly resistant to electrical interference For a remote mounted transmitter this design allows the coil drive and electrode cables to share a single dedicated conduit The conductivity of the process fluid is a factor in specifying a cable run of up to 1 000 feet...

Страница 123: ...fe from stray 50 or 60 Hz noise in the environment because the sample period is equal in length to one power line cycle 60 Hz This allows the coil drive and signal wires to share the same conduit using standard cables The issues of reference voltage quadrature voltage phase detection and zero controls are not applicable to pulsed dc systems EVENT SEQUENCE Magnetic Field Transition Begins Transient...

Страница 124: ...he system under a no flow condition that requires process shutdown Low Power Consumption The field coils are energized with a controlled amplitude current thereby reducing the power requirements of pulse dc systems Simplified Installation Fewer electrical connections and conduit runs are required in comparison to most ac systems In addition special power shielded cables are eliminated because the ...

Страница 125: ...ence Table A 3 Flange Bolts Model 8705 2 12 Model 8711 2 13 Flow Rate Unit 4 5 Flowtube Orientation B 4 Flowtube Problems 5 5 Flowtube Serial Number A 3 Flowtube Site Selection B 2 Function Keys A 7 Functions A 9 G Gross Totalized Value A 3 Grounding Grounding Electrodes 2 15 2 17 Grounding Rings 2 15 2 17 Model 8705 2 14 Model 8711 2 17 H Handling 2 7 Hardware A 4 Hardware Switches 2 2 HART Commu...

Страница 126: ... Process Conditions B 3 Process Leak Containment 2 24 Process Noise 5 3 Pulse Output Test 4 10 5 4 Pulse Width 4 9 Pulsed dc Field Coil Advantages D 2 Zeroing D 4 R Rate Unit 4 5 Relief Valves 2 26 Return of Materials 5 7 Reverse Flow Enable 4 8 S Shift Keys A 8 Signal Processing 4 12 C 2 Sizing B 4 Special Units 4 5 Supply Wire 2 6 Switch Changing Settings 2 3 Failure Mode 2 2 Output Power 2 2 Tr...

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