Emerson Rosemount 8750WA Quick Installation Manual
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Emerson Rosemount 8750WA Quick Installation Manual

Emerson Rosemount 8750WA Quick Installation Manual

Magnetic flowmeter system transmitter and sensor
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Quick Installation Guide
00825-0100-4750, Rev BB
January 2013
Rosemount 8750WA Magnetic Flowmeter
System (Transmitter and Sensor)
www.rosemount.com
¢00825-0100-4725.¤
Start
Step 1: Pre-Installation
Step 2: Handling
Step 3: Mounting
Step 4: Installation
(Flanged Sensors)
(Wafer Sensors)
Step 5: Grounding
Step 6: Wiring
Step 7: Basic Configuration
Product Certifications
End
Rosemount 8750WA

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Summary of Contents for Emerson Rosemount 8750WA

  • Page 1 Quick Installation Guide 00825-0100-4750, Rev BB Rosemount 8750WA January 2013 Rosemount 8750WA Magnetic Flowmeter System (Transmitter and Sensor) Start Step 1: Pre-Installation Step 2: Handling Step 3: Mounting Step 4: Installation (Flanged Sensors) (Wafer Sensors) Step 5: Grounding Step 6: Wiring...

  • Page 2: Important Notice

    (I.S.) installations. Refer to the Rosemount 8750WA reference manual (document number 00809-0100-4750) for more instructions. The manual and this QIG are also available electronically on www.rosemount.com.

  • Page 3: Step 1: Pre -Installation

    LOI screen (see Figure 1 and Figure 2). If the Rosemount 8750WA transmitter is mounted separately from the sensor, it is not subject to limitations that might apply to the sensor.
  • Page 4 Quick Installation Guide 00825-0100-4750, Rev BB Rosemount 8750WA January 2013 Figure 2. 8750WA12E Dimensional Drawing WITH STANDARD COVER 9.01 (229) 4.31 0.44 (109) 3.11 2.81 (11) (79) (71) 12.02 (305) 11.15 (283) 2.96 (75) WITH LOI COVER 1 / 2 –14 NPT...

  • Page 5: Installation Procedures

    Pipe Mounting To mount the transmitter on a pipe: 1. Attach the mounting bracket to the pipe using the mounting hardware. 2. Attach the Rosemount 8750WA transmitter to the mounting bracket using the mounting screws. Identify Options and Configurations The standard application of the 8750WA includes a 4–20 mA output and control of the sensor coils and electrodes.
  • Page 6 Electrical Considerations Before making any electrical connections to the Rosemount 8750WA, consider the local and plant electrical standards and be sure to have the proper power supply, conduit, and other accessories.
  • Page 7 PTFE-lined sensors are shipped with end covers that protect it from both mechanical damage and normal unrestrained distortion. Remove the end covers just before installation. Figure 3. Rosemount 8750WA Flanged Sensor Support for Handling 6-Inch and Larger Sensors ½- through 4-Inch Sensors...
  • Page 8 Quick Installation Guide 00825-0100-4750, Rev BB Rosemount 8750WA January 2013 3: M OUNTING Upstream/Downstream Piping To ensure specification accuracy over widely varying process conditions, install the sensor a minimum of five straight pipe diameters upstream and two pipe diameters downstream from the electrode plane (see Figure 4).
  • Page 9 Figure 5. Sensor Orientation FLOW FLOW The electrodes in the Rosemount 8750WA flanged sensor are properly orientated when the two measurement electrodes are in the 3 and 9 o’clock positions, as shown on the right of Figure 5. The electrodes in the Rosemount 8750WA wafer sensor are properly orientated when the top of the sensor is either vertical or horizontal, as shown in Figure 6.
  • Page 10 Quick Installation Guide 00825-0100-4750, Rev BB Rosemount 8750WA January 2013 4: I NSTALLATION Flanged Sensors Gaskets The sensor requires a gasket at each of its connections to adjacent devices or piping. The gasket material selected must be compatible with the process fluid and operating conditions. Metallic or spiral-wound gaskets can damage the liner.
  • Page 11 Quick Installation Guide 00825-0100-4750, Rev BB Rosemount 8750WA January 2013 Figure 8. Flange Bolt Torquing Sequence Table 1. Suggested Flange Bolt Torque Values for ASME B16.5 (ANSI) Flanged Sensors PTFE Liner Polyurethane/Neoprene liner Size Class 150 Class 300 Class 150...

  • Page 12: Wafer Sensors

    Quick Installation Guide 00825-0100-4750, Rev BB Rosemount 8750WA January 2013 Wafer Sensors Gaskets The sensor requires a gasket at each of its connections to adjacent devices or piping. The gasket material selected must be compatible with the process fluid and operating conditions. Metallic or spiral-wound gaskets can damage the liner.

  • Page 13: Flange Bolts

    Wafer sensors require threaded studs. See Table 8 on page 11 for torque sequence. Always check for leaks at the flanges after tightening the flange bolts. All sensors require a second torquing 24 hours after initial flange bolt tightening. Table 4. Rosemount 8750WA Wafer Sensor Torque Specifications Size Code Line Size...
  • Page 14 Quick Installation Guide 00825-0100-4750, Rev BB Rosemount 8750WA January 2013 5: G ROUNDING Use Table 5 to determine which process grounding option to follow for proper installation. The sensor case should be earth grounded in accordance with national and local electrical codes.
  • Page 15 Quick Installation Guide 00825-0100-4750, Rev BB Rosemount 8750WA January 2013 Figure 12. Grounding with Grounding Rings or Lining Protectors Grounding Rings or Lining Protectors Figure 13. Grounding with Grounding Electrode...
  • Page 16 Quick Installation Guide 00825-0100-4750, Rev BB Rosemount 8750WA January 2013 6: W 6: W IRING IRING This wiring section covers the connection between the transmitter and sensor, the 4-20 mA loop, and supplying power to the transmitter. Follow the conduit information, cable requirements, and disconnect requirements in the sections below.
  • Page 17 Quick Installation Guide 00825-0100-4750, Rev BB Rosemount 8750WA January 2013 CONTINUED Run the appropriate size cable through the conduit connections in your magnetic flowmeter system. Run the power cable from the power source to the transmitter. Run the coil drive and signal cables between the flowmeter sensor and transmitter.
  • Page 18 Quick Installation Guide 00825-0100-4750, Rev BB Rosemount 8750WA January 2013 CONTINUED To order cable specify length as quantity desired. 25 feet = Qty (25) 08732-0753-1003 Table 6. Cable Requirements Description Length Part Number Coil Drive Cable (14 AWG) 08712-0060-0001 Belden 8720, Alpha 2442...
  • Page 19 Quick Installation Guide 00825-0100-4750, Rev BB Rosemount 8750WA January 2013 CONTINUED Figure 16. Remote Mount Wiring Diagrams NOTE When using the Rosemount supplied combination cable, the signal wires for terminals 18 and 19 contain an addition shield wire. These two shield wires should be tied with the main shield wire at terminal 17 at the sensor terminal block and cut back to the insulation in the transmitter junction box.
  • Page 20 Integral Mount Transmitters The interconnecting wire harness for an integral mount transmitter is installed at the factory. See Figure 18. Do not use cable other than that supplied by Emerson Process Management, Rosemount, Inc. Figure 18. 8750WA32EST Integral Mount Wiring Diagram Connecting the 4–20 mA Analog Signal...
  • Page 21 Quick Installation Guide 00825-0100-4750, Rev BB Rosemount 8750WA January 2013 8750WA32E - connect negative (-)DC to Terminal 1 and positive (+)DC to Terminal 2. See Figure 19. Figure 19. 8750WA32E Analog Signal Wiring Diagram +4–20 mA –4–20 mA 8750WA12E - connect negative (-)DC to Terminal 8 and positive (+)DC to Terminal 7. See Figure 20.
  • Page 22 The 8750WA transmitter is designed to be powered by 90-250 Vac, 50–60 Hz, or 12–42 Vdc. Before connecting power to the Rosemount 8750WA, consider the following standards and be sure to have the proper power supply, conduit, and other accessories. Wire the transmitter according to national, local, and plant electrical requirements for the supply voltage.
  • Page 23 Installation Category The installation category for the 8750WA is (Overvoltage) Category II. Overcurrent Protection The Rosemount 8750WA flowmeter transmitter requires overcurrent protection of the supply lines. Maximum ratings of overcurrent devices are shown in Table 9. Table 9. Overcurrent Limits...
  • Page 24 Quick Installation Guide 00825-0100-4750, Rev BB Rosemount 8750WA January 2013 8750WA12E Power Supply For AC power applications (90-250 VAC, 50-60 Hz), connect AC Neutral to terminal N and connect AC Line to terminal L1. For DC power applications, connect negative to terminal N (DC -) and positive to terminal L1 (DC +).

  • Page 25: Step 7: Basic Configuration

    Quick Installation Guide 00825-0100-4750, Rev BB Rosemount 8750WA January 2013 7: B ASIC ONFIGURATION Once the magnetic flowmeter is installed and power has been supplied, the transmitter must be configured through the basic setup. These parameters can be configured through either a local operator interface or a HART communication device.
  • Page 26 Quick Installation Guide 00825-0100-4750, Rev BB Rosemount 8750WA January 2013 Table 10. HART Field Communicator Fast Keys for 8750WA32 Function HART Fast Keys Process Variables 1, 1 Primary Variable (PV) 1, 1, 1 PV Percent of Range 1, 1, 2...
  • Page 27 Quick Installation Guide 00825-0100-4750, Rev BB Rosemount 8750WA January 2013 Function HART Fast Keys Set Pass/Fail Criteria 1,2,3,1,4 No Flow Limit 1,2,3,1,4,1 Flowing Limit 1,2,3,1,4,2 Empty Pipe Limit 1,2,3,1,4,3 Measurements 1,2,3,1,5 4-20 mA Verify 1,2,3,2 4-20 mA Verification 1,2,3,2,1 4-20 mA Verify Result...
  • Page 28 Quick Installation Guide 00825-0100-4750, Rev BB Rosemount 8750WA January 2013 Function HART Fast Keys Special Units 1,3,2,2 Volume Unit 1,3,2,2,1 Base Volume Unit 1,3,2,2,2 Conversion Number 1,3,2,2,3 Base Time Unit 1,3,2,2,4 Flow Rate Unit 1,3,2,2,5 Line Size 1,3,3 PV Upper Range Value (URV)
  • Page 29 Quick Installation Guide 00825-0100-4750, Rev BB Rosemount 8750WA January 2013 Function HART Fast Keys Start Totalizer 1,4,2,5,5 Stop Totalizer 1,4,2,5,6 Reset Totalizer 1,4,2,5,7 Alarm Level 1,4,2,6 HART Output 1,4,2,7 Variable Mapping 1,4,2,7,1 TV is 1,4,2,7,1,1 4V is 1,4,2,7,1,2 Poll Address...
  • Page 30 Quick Installation Guide 00825-0100-4750, Rev BB Rosemount 8750WA January 2013 Function HART Fast Keys Final Assembly # 1,4,6,10,4 Construction Materials 1,4,6,11 Flange Type 1,4,6,11,1 Flange Material 1,4,6,11,2 Electrode Type 1,4,6,11,3 Electrode Material 1,4,6,11,4 Liner Material 1,4,6,11,5 Review (1) Scroll through the menu on the 375 to access this item.
  • Page 31 Quick Installation Guide 00825-0100-4750, Rev BB Rosemount 8750WA January 2013 Function HART Fast Keys Control 2 1,2,2,7,1 Mode 2 1,2,2,7,2 High Limit 2 1,2,2,7,3 Low Limit 2 1,2,2,7,4 Flow Limit Hysteresis 1,2,2,7,5 Total Limit 1,2,2,8 Total Control 1,2,2,8,1 Total Mode...
  • Page 32 Quick Installation Guide 00825-0100-4750, Rev BB Rosemount 8750WA January 2013 Function HART Fast Keys License Key 1,2,3,2,2 Device ID 1,2,3,2,2,1 License Key 1,2,3,2,2,2 Diagnostic Variables 1,2,4 EP Value 1,2,4,1 Electronics Temp 1,2,4,2 Line Noise 1,2,4,3 5 Hz Signal to Noise Ratio (SNR)
  • Page 33 Quick Installation Guide 00825-0100-4750, Rev BB Rosemount 8750WA January 2013 Function HART Fast Keys PV Damping 1,3,7 Detailed Setup Additional Params 1,4,1 Coil Drive Freq 1,4,1,1 Density Value 1,4,1,2 PV USL 1,4,1,3 PV LSL 1,4,1,4 PV Min Span 1,4,1,5 Configure Output...
  • Page 34 Quick Installation Guide 00825-0100-4750, Rev BB Rosemount 8750WA January 2013 Function HART Fast Keys Total Mode 1,4,2,3,5,2 Total High Limit 1,4,2,3,5,3 Total Low Limit 1,4,2,3,5,4 Total Limit Hysteresis 1,4,2,3,5,5 Diagnostic Status Alert 1,4,2,3,6 Reverse Flow 1,4,2,4 Totalizer Setup 1,4,2,5 Totalizer Units...
  • Page 35 Quick Installation Guide 00825-0100-4750, Rev BB Rosemount 8750WA January 2013 Function HART Fast Keys Descriptor 1,4,6,3 Message 1,4,6,4 Date 1,4,6,5 Device ID 1,4,6,6 PV Sensor S/N 1,4,6,7 PV Sensor Tag 1,4,6,8 Write Protect 1,4,6,9 Revision No. 1,4,6,10 Universal Rev 1,4,6,10,1...

  • Page 36: Canadian Standards Association (Csa)

    Quick Installation Guide 00825-0100-4750, Rev BB Rosemount 8750WA January 2013 RODUCT ERTIFICATIONS North American Certifications Factory Mutual (FM) NOTE For the 8750WA32 transmitters with a local operator interface (LOI), the lower ambient temperature limit is -20 °C. NH Ordinary Location Approval...
  • Page 37 Quick Installation Guide 00825-0100-4750, Rev BB Rosemount 8750WA January 2013...
  • Page 38 Quick Installation Guide 00825-0100-4750, Rev BB Rosemount 8750WA January 2013...

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