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Quick Installation Guide

00825-0100-4750, Rev BA
June 2009

Rosemount 8750WA

21

S

TEP

6

CONTINUED

...

Remote transmitter installations require equal lengths of signal and coil drive cables.
Integrally mounted transmitters are factory wired and do not require interconnecting cables.

Lengths from 5 to 1,000 feet (1.5 to 300 meters) may be specified, and will be shipped with
the sensor.

When connecting the remote cables, be sure to connect the signal cables (20 AWG) to
terminals 17, 18 and 19. The coil drive cable (14 AWG) should be used to connect terminals
1, 2 and ground. Table 8 below shows the required wiring connections. Figure 17 shows the
terminal block connections at the sensor and transmitter.

Table 8. Remote Wiring Connections Using Individual Coil and Signal Cable

Table 7. Cable Requirements

Description

Unit of Measure

Part Number

Signal Cable (20 AWG) Belden 8762, Alpha
2411 equivalent

ft

m

08712-0061-0001
08712-0061-0003

Coil Drive Cable (14 AWG) Belden 8720,
Alpha 2442 equivalent

ft

m

08712-0060-0001
08712-0060-0013

Combination Signal and Coil Drive Cable (18
AWG)

(1)

(1)

For remote mount installations, combination signal and coil drive cable should be limited to less than
330 ft. (100 m).

ft

m

08712-0752-0001
08712-0752-0003

Transmitter Terminal

Sensor Terminal

Wire Gauge

Wire Color

1

1

14

White

2

2

14

Black

Ground

Ground

14

Shield

17

17

20

Shield

18

18

20

Black

19

19

20

White

4750RevBAQIG.fm Page 21 Thursday, July 16, 2009 3:52 PM

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Содержание 8750WA

Страница 1: ...0 Rev BA June 2009 Rosemount 8750WA 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 End Rosemount 8750WA Magnetic Flowmeter System Transmitter and Sensor ...

Страница 2: ...the operating instructions unless qualified Verify that the operating environment of the sensor and transmitter is consistent with the appropriate FM or CSA approval WARNING The sensor liner is vulnerable to handling damage Never place anything through the sensor for the purpose of lifting or gaining leverage Liner damage can render the sensor useless To avoid possible damage to the sensor liner e...

Страница 3: ...quirements Mechanical Considerations The mounting site for the Rosemount 8750WA transmitter should provide enough room for secure mounting easy access to conduit ports full opening of the transmitter covers and easy readability of the LOI screen see Figure 1 If the Rosemount 8750WA is mounted separately from the sensor it is not subject to limitations that might apply to the sensor Figure 1 Rosemo...

Страница 4: ...ludes both detailed mechanical and electrical installation procedures Mount the Transmitter At a remote site the transmitter may be mounted on a pipe up to two inches in diameter or against a flat surface 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 ...

Страница 5: ...f the hardware switches If you need to change the switch settings complete the steps outlined in the manual 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 Rotate Transmitter Housing The integral electronics housing can be rotated on...

Страница 6: ...sport the system to the installation site in the original shipping containers 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 2 Rosemount 8750WA Flanged Sensor Support for Handling through 4 Inch Sensors 6 Inch and Larger Sensors ...

Страница 7: ... with as few as zero diameters of straight run Flow Direction The sensor should be mounted so the FORWARD end of the flow arrow shown on the sensor identification tag points in the direction of flow through the sensor Sensor Orientation The sensor should be installed in a position that ensures the sensor remains full during operation Vertical installation allows upward process fluid flow and keeps...

Страница 8: ...ons as shown on the right of Figure 4 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 5 Avoid any mounting orientation that positions the top of the sensor at 45 from the vertical or horizontal position Figure 4 Sensor Orientation Figure 5 Rosemount 8750WA Wafer Sensor Mounting Position FLOW ...

Страница 9: ...epeat the process on the downstream side of the sensor For sensors with more or less flange bolts tighten the bolts in a similar crosswise sequence Repeat this entire tightening sequence at 40 60 80 and 100 of the suggested torque values or until the leak between the process and sensor flanges stop If leakage has not stopped at the suggested torque values the bolts can be tightened in additional 1...

Страница 10: ...ide of the sensor between the pipe flanges Stud specifications are listed in Table 2 NOTE Using carbon steel bolts on smaller line sizes 0 5 and 1 in 15 and 25 mm rather than the required stainless steel bolts will degrade performance Table 1 Suggested Flange Bolt Torque Values for Rosemount 8750WA Flanged Sensors PTFE Polyurethane Neoprene liner Size Code Line Size Class 150 pound feet Class 300 ...

Страница 11: ... flanges after tightening the flange bolts All sensors require a second torquing 24 hours after initial flange bolt tightening Table 2 Stud Specifications Nominal Sensor Size Stud Specifications 0 5 1 inch 15 25 mm 316 SST ASTM A193 Grade B8M Class 1 threaded mounted studs 1 5 8 inch 40 200 mm CS ASTM A193 Grade B7 threaded mounting studs Figure 7 Gasket Placement with Centering Rings Table 3 Rose...

Страница 12: ...impair the protection provided by the equipment Table 4 Process Grounding Installation Process Grounding Options Type of Pipe Grounding Straps Grounding Rings Grounding Electrode Lining Protectors Conductive Unlined Pipe See Figure 8 Not Required Not Required See Figure 9 Conductive Lined Pipe Insufficient Grounding See Figure 9 See Figure 8 See Figure 9 Non Conductive Pipe Insufficient Grounding ...

Страница 13: ...BA June 2009 Rosemount 8750WA 13 STEP 5 CONTINUED Figure 9 Grounding with Grounding Rings or Lining Protectors Figure 10 Grounding with Grounding Rings or Lining Protectors Grounding Rings or Lining Protectors Grounding Rings or Lining Protectors ...

Страница 14: ...Quick Installation Guide 00825 0100 4750 Rev BA June 2009 Rosemount 8750WA 14 STEP 5 CONTINUED Figure 11 Grounding with Grounding Electrode ...

Страница 15: ...conduits to meet IP68 protection requirements Conduit Cables 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 electrode cables between the flowmeter sensor and transmitter Prepare the ends of the coil drive and electrode cables as shown in Figure 15 Limit the unshield...

Страница 16: ...reaker Clearly label the disconnect or circuit breaker and locate it near the transmitter and per local electrical control Installation Category The installation category for the 8750WA32 is Overvoltage Category II Overcurrent Protection The Rosemount 8750WA32 Flowmeter Transmitter requires overcurrent protection of the supply lines Maximum ratings of overcurrent devices are as follows Table 5 Max...

Страница 17: ...DC external analog power source If a HART Field Communicator or control system is to be used it must be connected across a minimum of 250 ohms resistance in the loop To connect external power to the 4 20 mA loop connect DC to Terminal 1 and DC to Terminal 2 NOTE To connect any of the other output options pulse output and or digital input output consult the comprehensive product manual 8750WA12 Wir...

Страница 18: ...transmitter Disconnects Connect the device through an external disconnect or circuit breaker Clearly label the disconnect or circuit breaker and locate it near the transmitter and per local electrical control Overcurrent Protection The Rosemount 8712 Flowmeter Transmitter requires overcurrent protection of the supply lines Maximum ratings of overcurrent devices are as follows Figure 14 Power Suppl...

Страница 19: ...loop External HART multidrop installations require a 10 30 V DC external analog power source If a HART Field Communicator or control system is to be used it must be connected across a minimum of 250 ohms resistance in the loop To connect external power to the 4 20 mA loop connect DC to Terminal 8 and DC to Terminal 7 NOTE To connect any of the other output options pulse output and or digital input...

Страница 20: ...25 0100 4750 Rev BA June 2009 Rosemount 8750WA 20 STEP 6 CONTINUED Figure 16 Conduit Preparation Wrong Correct Coil Drive and Electrode Cables Power Outputs Power Outputs Coil Drive and Electrode Cables Power Outputs Power Outputs ...

Страница 21: ...uired wiring connections Figure 17 shows the terminal block connections at the sensor and transmitter Table 8 Remote Wiring Connections Using Individual Coil and Signal Cable Table 7 Cable Requirements Description Unit of Measure Part Number Signal Cable 20 AWG Belden 8762 Alpha 2411 equivalent ft m 08712 0061 0001 08712 0061 0003 Coil Drive Cable 14 AWG Belden 8720 Alpha 2442 equivalent ft m 0871...

Страница 22: ...unt 8750WA 22 STEP 6 CONTINUED Sensor to Remote Mount Transmitter Connections Figure 17 8750WA32ES Remote Mount Wiring Diagram Do not connect AC power to the sensor or to terminals 1 and 2 of the transmitter or replacement of the electronics board will be necessary ...

Страница 23: ...ify that the cover is tight against the housing 3 Using an M4 hex wrench loosen the jam screw until it contacts the transmitter cover 4 Turn the jam screw an additional 1 2 turn counterclockwise to secure the cover Note Application of excessive torque may strip the threads 5 Verify that the cover cannot be removed Figure 18 8750WA32ES Integral Mount Wiring Diagram Electronics Board Do not connect ...

Страница 24: ...according to the requirements of your application The tag may be up to eight characters long Flow Rate Units The flow rate units variable specifies the format in which the flow rate will be displayed Units should be selected to meet your particular metering needs URV Upper Range Value The upper range value URV sets the 20 mA point for the analog output This value is typically set to full scale flo...

Страница 25: ...V Analog Output AO 1 1 3 Totalizer Set Up 1 1 4 Totalizer Units 1 1 4 1 Gross Total 1 1 4 2 Net Total 1 1 4 3 Reverse Total 1 1 4 4 Start Totalizer 1 1 4 5 Stop Totalizer 1 1 4 6 Reset Totalizer 1 1 4 7 Pulse Output 1 1 5 Diagnostics 1 2 Diagnostic Controls 1 2 1 Basic Diagnostics 1 2 2 Self Test 1 2 2 1 AO Loop Test 1 2 2 2 Pulse Output Loop Test 1 2 2 3 Empty Pipe Limits 1 2 2 4 Empty Pipe EP Va...

Страница 26: ...pe 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 1 2 3 2 2 Licensing 1 2 3 3 License Status 1 2 3 3 1 License Key 1 2 3 3 2 Device ID 1 2 3 3 2 1 License Key 1 2 3 3 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 1 2 4 4 37 Hz SNR 1 2 4 5 Signal Power 1...

Страница 27: ... 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 1 3 4 PV Lower Range Value LRV 1 3 5 Calibration Number 1 3 6 PV Damping 1 3 7 Detailed Setup 1 4 Additional Parameters 1 4 1 Coil Drive Frequency 1 4 1 1 Density Value 1 4 1 2 PV Upper Sensor Limit USL 1 4 1 3 PV Lower Sensor Limit LSL 1 4 1 4 PV Minimum Span 1 4 1 5 Configure Output 1 4 2 Analog Output 1 ...

Страница 28: ... 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 1 4 2 7 2 of Req Preams 1 4 2 7 3 of Resp Preams 1 4 2 7 4 Burst Mode 1 4 2 7 5 Burst Option 1 4 2 7 6 LOI Config 1 4 3 Language 1 4 3 1 Flowrate Display 1 4 3 2 Totalizer Display 1 4 3 3 Display Lock 1 4 3 4 Signal Processing 1 4 4 Operating Mode 1 4 4...

Страница 29: ...lay To deactivate the display lock DL hold the UP arrow for 10 seconds Once deactivated the DL will no longer appear in the lower left hand corner of the display Manufacturer 1 4 6 1 Tag 1 4 6 2 Descriptor 1 4 6 3 Message 1 4 6 4 Date 1 4 6 5 Device ID 1 4 6 6 PV Sensor Serial Number 1 4 6 7 Sensor Tag 1 4 6 8 Write Protect 1 4 6 9 Revision No 1 1 4 6 10 Universal Rev 1 1 4 6 10 1 Transmitter Rev ...

Страница 30: ...ut 1 1 5 Diagnostics 1 2 Diagnostic Controls 1 2 1 Basic Diagnostics 1 2 2 Self Test 1 2 2 1 AO Loop Test 1 2 2 2 Pulse Output Loop Test 1 2 2 3 Tune Empty Pipe 1 2 2 4 EP Value 1 2 2 4 1 EP Trigger Level 1 2 2 4 2 EP Counts 1 2 2 4 3 Electronics Temp 1 2 2 5 Flow Limit 1 1 2 2 6 Control 1 1 2 2 6 1 Mode 1 1 2 2 6 2 High Limit 1 1 2 2 6 3 Low Limit 1 1 2 2 6 4 Flow Limit Hysteresis 1 2 2 6 5 Flow ...

Страница 31: ... 1 1 2 3 1 2 11 Sensor Signature 1 2 3 1 3 Signature Values 1 2 3 1 3 1 Coil Resistance 1 2 3 1 3 1 1 Coil Signature 1 2 3 1 3 1 2 Electrode Resistance 1 2 3 1 3 1 3 Re Signature Meter 1 2 3 1 3 2 Recall Last Saved Values 1 2 3 1 3 3 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 Coil Resistance 1 2 3 1 5 1 C...

Страница 32: ...Test Result 1 2 4 7 11 Trims 1 2 5 D A Trim 1 2 5 1 Scaled D A Trim 1 2 5 2 Digital Trim 1 2 5 3 Auto Zero 1 2 5 4 Universal Trim 1 2 5 5 View Status 1 2 6 Basic Setup 1 3 Tag 1 3 1 Flow Units 1 3 2 PV Units 1 3 2 1 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 URV 1 3 4 PV LRV...

Страница 33: ...tal Input 1 1 4 2 3 1 3 Digital Output 1 1 4 2 3 1 4 DO 2 1 4 2 3 2 Flow Limit 1 1 4 2 3 3 Control 1 1 4 2 3 3 1 Mode 1 1 4 2 3 3 2 High Limit 1 1 4 2 3 3 3 Low Limit 1 1 4 2 3 3 4 Flow Limit Hysteresis 1 4 2 3 3 5 Flow Limit 2 1 4 2 3 4 Control 2 1 4 2 3 4 1 Mode 2 1 4 2 3 4 2 High Limit 2 1 4 2 3 4 3 Low Limit 2 1 4 2 3 4 4 Flow Limit Hysteresis 1 4 2 3 4 5 Total Limit 1 4 2 3 5 Total Control 1 ...

Страница 34: ...4 3 Language 1 4 3 1 Flow Rate Display 1 4 3 2 Totalizer Display 1 4 3 3 Display Lock 1 4 3 4 Signal Processing 1 4 4 Operating Mode 1 4 4 1 Man Config DSP 1 4 4 2 Status 1 4 4 2 1 Samples 1 4 4 2 2 Limit 1 4 4 2 3 Time Limit 1 4 4 2 4 Coil Drive Freq 1 4 4 3 Low Flow Cutoff 1 4 4 4 PV Damping 1 4 4 5 Universal Trim 1 4 5 Device Info 1 4 6 Manufacturer 1 4 6 1 Tag 1 4 6 2 Descriptor 1 4 6 3 Messag...

Страница 35: ... 4 Liner Material 1 1 4 6 11 5 Review 1 5 1 Scroll through the menu on the 375 to access this item Rosemount 8750WA32ES Flow Transmitter Power supply 250 V ac 1 A or 50 Vdc 2 5 A 20 W maximum Pulsed output circuit 30 V dc pulsed 0 25 A 7 5 W maximum 4 20 mA output circuit 30 V dc 30 mA 900 mW maximum Sensors Coil excitation circuit 40 V dc pulsed 0 5 A 20 W maximum Electrode circuit in type of exp...

Страница 36: ... at 40 C T5 8750WA32 at 60 C Enclosure Type 4X N5 Division 2 Approval All Transmitters For sensors with IS electrodes only Reference Rosemount Control Drawing 08732 1052 8750WA Class I Division 2 Groups A B C D Temp Codes T4 8750WA12 at 40 C T4 8750WA32 at 60 C 50 C Ta 60 C Dust ignition proof Class II III Division 1 Groups E F G Temp Codes T5 8750WA12 at 40 C T5 8750WA32 at 60 C Enclosure Type 4X...

Страница 37: ...Quick Installation Guide 00825 0100 4750 Rev BA June 2009 Rosemount 8750WA 37 ...

Страница 38: ...Quick Installation Guide 00825 0100 4750 Rev BA June 2009 Rosemount 8750WA 38 ...

Страница 39: ...Quick Installation Guide 00825 0100 4750 Rev BA June 2009 Rosemount 8750WA 39 ...

Страница 40: ...Quick Installation Guide 00825 0100 4750 Rev BA June 2009 Rosemount 8750WA 40 ...

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