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Index

March 2004

Index

Symbols

#Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

Numerics

4-20 Loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4-20 mA, Trimming . . . . . . . . . . . . . . . . . . . . 5-3

Acceleration Limit . . . . . . . . . . . . . . . . . . . . 2-20
Amplitude Error - E5 . . . . . . . . . . . . . . . . . . . 6-2
Analog Output Error - E7. . . . . . . . . . . . . . . . 6-3

Base Output Value, Entering . . . . . . . . . . . . . 4-2
Base Value, Entering . . . . . . . . . . . . . . . . . . . 4-3
Baud Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

CAL Menu . . . . . . . . . . . . . . . . . . . . . . . . . . .A-3
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
CE Mark Compliance. . . . . . . . . . . . . . . . . . . B-1
Channel Disabled

E30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

Channel, Changing (in Display). . . . . . . . . . . 3-2
Channel/Path (Status), Activating . . . . . . . . . 2-4
CONFIG Menu. . . . . . . . . . . . . . . . . . . . 4-1, A-2
Contrast,Setting . . . . . . . . . . . . . . . . . . . . . . . 3-5
Cycle Skip, Acceleration Error - E6 . . . . . . . 6-3
Cycle Time . . . . . . . . . . . . . . . . . . . . . . . 6-5, D-3

Data Bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
Data Record . . . . . . . . . . . . . . . . . . . . . . . . . C-1
Delta T . . . . . . . . . . . . . . . . . . . . . . . . . .6-5, D-3
Delta-T Offset . . . . . . . . . . . . . . . . . . . . . . . .2-16
Diagnostic Parameters, Displaying . . . . . . . . .6-4
Diagnostics

Service Record . . . . . . . . . . . . . . . . . . . . . D-1
Table of Values . . . . . . . . . . . . . . . . . . . . . D-3

DISP Menu . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
Display

Locking . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
Unlocking . . . . . . . . . . . . . . . . . . . . . . . . . .2-2

Display, Adjusting Numeric Format . . . . . . . .3-3
Display, Setting Up . . . . . . . . . . . . . . . . . . . . .3-1
DN +- Peak . . . . . . . . . . . . . . . . . . . . . . .6-5, D-3
DN Amp Disc . . . . . . . . . . . . . . . . . . . . .6-5, D-3
DN Signal Q . . . . . . . . . . . . . . . . . . . . . .6-5, D-3
DN Transit. . . . . . . . . . . . . . . . . . . . . . . .6-5, D-3

Содержание UTX878 Ultrasonic

Страница 1: ...March 2004 Process Control Instruments UTX878 Ultrasonic Flow Transmitter User s Manual 910 253A ...

Страница 2: ...iii March 2004 The UTX878 Flow Transmitter and Transducers ...

Страница 3: ...arranties arising from course of dealing or usage or trade Return Policy If a GE Panametrics instrument malfunctions within the warranty period the following procedure must be completed 1 Notify GE Panametrics giving full details of the problem and provide the model number and serial number of the instrument If the nature of the problem indicates the need for factory service GE Panametrics will is...

Страница 4: ... Transducers on the Pipe 1 7 Wiring the Transducers 1 8 Wiring the RS232 Serial Port 1 9 What s Next 1 10 Chapter 2 Programming Site Data Introduction 2 1 Unlocking and Locking the UTX878 2 2 Unlocking the UTX878 2 2 Locking the UTX878 2 3 Activating a Channel Path Status 2 4 Entering Transducer Parameters 2 6 Other Transducers 2 7 Entering Pipe Parameters 2 8 Entering the Pipe Material 2 8 Enteri...

Страница 5: ... 3 5 Setting the Number of Screen Views 3 5 Chapter 4 Configuring Meter Data Introduction 4 1 Entering Global Units 4 1 Entering Base Zero and Span Output Values 4 2 Entering Output Type and Units 4 2 Entering Base and Span Values 4 3 Entering Error Handling 4 3 Entering RS232 Communication Settings 4 5 Resetting Forward and Reverse Totals 4 6 What s Next 4 6 Chapter 5 Calibration Introduction 5 1...

Страница 6: ...4 Fluid and Pipe Problems 6 6 Fluid Problems 6 6 Pipe Problems 6 7 Transducer Problems 6 8 Clamp on Transducer Problems 6 8 Chapter 7 Specifications General Specifications 7 1 Hardware Configuration 7 1 Environmental 7 1 Measurement Parameters 7 1 Keypad 7 1 Flow Accuracy of Reading 7 1 Range 7 1 Rangeability 7 1 Repeatability 7 1 Fluid Types 7 1 Electrical Specifications 7 2 Power Requirements 7 ...

Страница 7: ... Contents cont Appendix A Menu Maps Appendix B CE Mark Compliance Introduction B 1 EMC Compliance B 1 Appendix C Data Records Site Data C 1 Appendix D Service Record Introduction D 1 Data Entry D 1 Diagnostic Parameters D 3 ...

Страница 8: ...Chapter 1 ...

Страница 9: ...Installation Introduction 1 1 Unpacking 1 2 Site Considerations 1 2 Mounting the UTX878 Electronics Enclosure 1 4 Making the Electrical Connections 1 4 Installing the Transducers 1 6 ...

Страница 10: ...UTX878 system Selecting suitable sites for the electronics enclosure and the transducers Installing the transducers Installing the electronics enclosure Wiring the electronics enclosure WARNING Be sure to follow all applicable local safety codes and regulations for installing electrical equipment Consult company safety personnel or local safety authorities to verify the safety of any procedure or ...

Страница 11: ...acy depends primarily on the location and spacing of the transducers In addition to accessibility when planning for transducer location adhere to the following guidelines Locate the transducers so that there are at least 10 pipe diameters of straight undisturbed flow upstream and 5 pipe diameters of straight undisturbed flow downstream from the measurement point Undisturbed flow means avoiding sou...

Страница 12: ...transducer cables alongside high amperage AC power lines or any other cables that could cause electrical interference Also protect the transducer cables and connections from the weather and corrosive atmospheres Do not run the transducer cables along a pipe with a surface temperature over 75 C 167 F IMPORTANT Use only the cables and transducers that have been supplied with the UTX878 ...

Страница 13: ...del UTX878 flow transmitter Refer to Figure 1 7 on page 1 13 for a complete wiring diagram ATTENTION EUROPEAN CUSTOMERS To meet CE Mark requirements all cables must be installed as described in Appendix B CE Mark Compliance WARNING Always disconnect the line power from the Model UTX878 before removing the front cover Preparing the Unit Before Making Electrical Connections Prepare the unit as descr...

Страница 14: ...hrough the conduit hole and connect the power leads to the power terminal block as shown in Figure 1 7 on page 1 13 Tie the shield drain wire to the ground bus bar inside the UTX878 but leave the shield wire open on the power supply end to avoid AC ground loops and for CE certification 5 Leaving a small amount of slack secure the power line with the cable clamp Note If you are using a 4 20 mA loop...

Страница 15: ...Status Transducer Pipe Fluid and Path options of the Program menu pages 2 4 to 2 14 to calculate the appropriate setting To set the desired transducer spacing 1 Loosen the red screws on the adjustable transducer shown in Figure 1 1 above 2 Slide the adjustable transducer on the rails until you have positioned it at the desired spacing Use the ruler on the rails and the white tick mark on the trans...

Страница 16: ...ces 2 Put the transducer fixture at the desired location on the pipe Secure it with the supplied stainless steel clamps Figure 1 4 below illustrates a typical installation Note Installation on the sides at 3 and 9 o clock of the pipe is ideal The top of the pipe might contain bubbles while the bottom might contain sediment Figure 1 4 A Typical Transducer Installation Once on the pipe an internal s...

Страница 17: ...AN CUSTOMERS To meet CE Mark requirements all cables must be installed as described in Appendix B CE Mark Compliance 2 For a 2 path averaging UTX878 repeat step 1 to connect the CH2 transducers to the terminal block for Channel 2 It is not required that both channels paths of a 2 Channel unit be connected Note The UTX878 uses two channels or paths to make more accurate flow measurement by averagin...

Страница 18: ...ate cable may be purchased from GE Panametrics Note The DTR and RTS signals power the UTX878 communication circuit and are required for proper operation Consult the factory if you have additional questions Note Signal names that imply direction e g transmit and receive are named from the point of view of the DTE device the GE Panametrics meter is usually considered the DTE device When the RS232 st...

Страница 19: ...OMERS To meet CE Mark requirements all cables must be installed as described in Appendix B CE Mark Compliance After the wiring has been completed replace the front cover on the enclosure and tighten the screws Consult the user s manual for the external device to configure it for use with the UTX878 What s Next After the UTX878 has been completely installed and wired reconnect line power Check the ...

Страница 20: ...March 2004 Installation 1 11 Figure 1 5 UTX878 Outline and Installation Dwg 712 1196 rev 2 ...

Страница 21: ...March 2004 Installation 1 12 Figure 1 6 Clamping Fixture Outline and Installation Dwg 570 076 rev 1 ...

Страница 22: ...March 2004 Installation 1 13 Figure 1 7 UTX878 Wiring Diagram Dwg 702 528 rev 2 ...

Страница 23: ...Chapter 2 ...

Страница 24: ...hannel Path Status 2 4 Entering Transducer Parameters 2 6 Entering Pipe Parameters 2 8 Entering Fluid Data 2 12 Entering Path Data 2 15 Entering Signal Parameters 2 16 Entering the Meter Correction K Factor 2 18 Entering Error Limits 2 19 What s Next 2 20 ...

Страница 25: ...arameters Fluid enter fluid type and Reynolds Correction data Path enter number of traverses and transducer spacing for clamp on transducers Signal entering signal parameters such as Delta T offset zero cutoff and velocity averaging K Factor entering the Meter Correction K Factor as a single value or as a table of values Error Limits entering minimum and maximum signal velocity amplitude and sound...

Страница 26: ...NT ESC A Security Check window similar to Figure 2 2 below opens Figure 2 2 Security Check Window 2 Using the arrow keys change the code number to the value desired for your security level For Prog Lock granting access only to the display the number is 2719 For Full Lock granting access to the display and user program the number is 7378 3 Press ENT The display screen reappears with the lock remove...

Страница 27: ... changing any part of the display or user program without the appropriate code Prog Lock which allows a user to change the display but not to enter the user program Unlocked which allows access to both the display and the user program Scroll to the desired option and press ENT twice 5 Press ESC to return to the User Program or continue pressing ESC to return to the display screen If you have chose...

Страница 28: ...creen appears similar to Figure 2 4 below Note The 2 Path Avg option is intended for applications where two sets of transducers are installed in the same location in the same pipe to improve accuracy and the UTX878 operates in AVE mode see page 3 2 With this function enabled the UTX878 performs error handling only if both channels paths are in error If this function is disabled error handling occu...

Страница 29: ...user program returns to the PROG menu Do one of the following To enter transducer data press the T key to highlight the Transducer listing and press ENT To program in other menus refer to Appendix A Menu Maps to navigate to the desired menu To leave the User Program press ESC three times ...

Страница 30: ...ubmenu and press ENT 5 Scroll to Clamp on and press ENT 6 Scroll to either Preprogrammed for the standard transducers or Other for special transducers and press ENT 7 The program also asks for the Wedge Temperature Scroll to the Wedge TMP option and press ENT Then use the S and T keys to enter the temperature and press ENT Note The wedge temperature of the transducer can be approximated by inputti...

Страница 31: ...ssion in the transducer wedge Scroll to the Wedge Ang option and press ENT Use the arrow keys to enter the provided angle in degrees and press ENT 4 To enter the Wedge Soundspeed scroll to the Wedge SS option and press ENT Use the arrow keys to enter the provided soundspeed in m s or ft s and press ENT 5 The final parameter is the Temperature Coefficient Scroll to the TempCo option and press ENT U...

Страница 32: ...eted and press ENT 3 Use the S and T keys to scroll to the desired Channel and press ENT 4 Scroll to the Pipe submenu and press ENT Entering the Pipe Material 1 The menu offers two options Material and Lining Be sure the Material option is highlighted and press ENT 2 Two other options now appear Preprogrammed and Other Scroll to the desired option and press ENT 3 The menu now varies with your choi...

Страница 33: ...he meter also requires the Wall Thickness WT Scroll to the WT option and press ENT Use the arrow keys to enter the known thickness and press ENT Note To obtain an accurate pipe wall thickness measurement use an ultrasonic thickness gauge Table 2 1 Preprogrammed Pipe Materials Pipe Material Category Specific Material Al Aluminum Rolled or None Brass None Cu Copper Annealed Rolled or None CuNi Coppe...

Страница 34: ...proceed to step a below Once you enter the nominal pipe size and schedule number the UTX878 determines the OD and wall thickness from an internal table a Scroll to the Schedule option and press ENT b A list of pipe sizes opens from 15 to 200 mm 0 5 to 8 in Scroll to the desired pipe size and press ENT c A list of schedules opens Scroll to the desired schedule and press ENT You have finished enteri...

Страница 35: ...ct None Press ENT to confirm the choice For other materials the next screen asks for the lining Soundspeed Press ENT to open the soundspeed window Use the arrow keys to enter the known soundspeed and press ENT Note If your pipe lining is not on the drop down list consult GE Panametrics for further information What s Next You have finished entering data in the Pipe submenu Do one of the following T...

Страница 36: ...roll to the desired Channel and press ENT 4 Scroll to the Fluid submenu and press ENT Entering Fluid Type 5 Two options appear Fluid Type and Reynolds Scroll to Fluid Type and press ENT 6 Two other options appear Normal and Tracking Tracking refers to Tracking Windows which are used to detect the receive signal when you are unsure of the fluid sound speed or when the fluid sound speed changes dras...

Страница 37: ...you return to the Fluid Type window discussed in Step 5 Entering Reynolds Correction Data Reynolds Correction is a correction factor based on the Kinematic Viscosity and flow rate of the fluid It is necessary as the velocity of the fluid measured along a diametrical path must be related to the total area average velocity over the entire pipe cross section This factor should be ON in most applicati...

Страница 38: ...ess ESC or ENT to return to the previous screen But if you scroll to Diagnostic and press ENT the meter asks for the type of signal to be used Signal Strength Up or Signal Strength Dn Scroll to the appropriate signal and press ENT b If you select Rows Used the program asks for the number of rows you wish to use Enter the desired number from 2 to 20 and press ENT c If you select Edit Table the tabl...

Страница 39: ...r installation and press ENT to confirm the entry Note The great majority of UTX applications call for two traverses Figure 2 5 below illustrates signal paths for a typical two traverse installation Figure 2 5 Signal Paths for a Two Traverse Installation 6 The remaining prompt displays the Transducer Spacing as calculated from the information entered Use this number to set the spacing of the trans...

Страница 40: ...he selection To enter the Signal submenu 1 Press ESC The UTX878 enters the User Program 2 Press the X key until PROG is bracketed and press ENT 3 Use the S and T keys to scroll to the desired Channel and press ENT 4 Scroll to the Signal option and press ENT 5 The first prompt Delta T Offset is the difference between the upstream and downstream transit times of the transducer signals It should norm...

Страница 41: ...n your selection in Step a If you select Peak no further options are available Press ESC to return to the Signal menu If you select Threshold and press ENT the screen shows three parameters Min Threshold Max Threshold and Percent of Peak For each parameter press ENT Use the arrow keys to enter the new value and press ENT 9 The next parameter is the Transmit Sample Size the number of pulses each tr...

Страница 42: ...e UTX878 displays the K Factor To change the value press ENT Use the arrow keys to change the value and press ENT IMPORTANT If you have enabled the Reynolds Correction factor in the Fluid option the K factor should be set to 1 00 Otherwise the typical factor is between 0 5 and 2 00 If you select Table the screen displays three options Units Rows Used and Edit Table a If you scroll to Units and pre...

Страница 43: ...ss ENT Use the arrow keys to change the value and press ENT 6 Repeat the steps above for the Maximum Signal limit 7 The next prompt calls for the Minimum Velocity limit Press ENT Use the arrow keys to change the value and press ENT 8 Repeat the steps above to change the Maximum Velocity limit The E3 VELOCITY RANGE error message appears if the velocity falls outside the minimum and maximum limits 9...

Страница 44: ... more than this limit from one reading to the next Press ENT Use the arrow keys to change the value and press ENT What s Next You have finished entering data in the PROG menu Do one of the following To program in other menus refer to Appendix A Menu Maps to navigate to the desired menu To return to the display screen press ESC until the display screen reappears To configure the display proceed to ...

Страница 45: ...Chapter 3 ...

Страница 46: ...Displaying Data Introduction 3 1 Setting Up the Display 3 1 Setting Screen Contrast 3 5 Setting the Number of Screen Views 3 5 ...

Страница 47: ...cal Display Screen To change the display screen press either the W or X keys The screen will highlight one of the parameters as shown in Figure 3 2 below Figure 3 2 Display Screen with Highlighted Parameter If you press the X key the UTX878 highlights the channel parameter in the upper left if you press the W key it highlights the error code parameter in the lower right Continue pressing the W or ...

Страница 48: ... The display screen reappears with the new channel Changing the Measurement Parameter The next parameter in the center is the measurement parameter velocity volumetric forward or reverse total soundspeed and diagnostic parameters To change the measurement parameter 1 Use the W or X key to highlight the measurement parameter and press ENT 2 The screen displays a list of parameters Velocity Volumetr...

Страница 49: ...he S and T keys to enter the desired number of places and press ENT If you select Min or Max The program displays the programmed minimum or maximum value 4 After making your selection press ESC twice to return to the display screen with the changed parameter Changing the Measurement Units In addition to changing the measurement parameter you can select for some parameters the particular units in w...

Страница 50: ...ss an explanation of the error use the W or X key to highlight the error code and press ENT The screen appears similar to Figure 3 3 below Figure 3 3 A Typical Error Message Explanation Press ESC to return to the display screen For an explanation of all error codes refer to Chapter 6 Error Codes and Diagnostics E1 LOW SIGNAL Indicates poor ultrasonic signal strenght Check transducer cable programm...

Страница 51: ...d the desired contrast level press ENT Note The display is visible over the entire UTX878 temperature range without contrast adjustment 5 Press ESC to return to the User Program or continue pressing ESC to return to the display screen Setting the Number of Screen Views You can also choose to display either one or two measurement parameters on the same or different channels To select the number of ...

Страница 52: ...Chapter 4 ...

Страница 53: ...iguring Meter Data Introduction 4 1 Entering Global Units 4 1 Entering Base Zero and Span Output Values 4 2 Entering RS232 Communication Settings 4 5 Resetting Forward and Reverse Totals 4 6 What s Next 4 6 ...

Страница 54: ...he program is locked follow the directions on page 2 2 to unlock the user program Entering Global Units In the Units submenu you can choose to display all measurements in either metric or English formats Note You cannot choose to display some measurements in English formats and others in metric To access the Units submenu 1 Press ESC The UTX878 enters the User Program 2 Press the X key until CONFI...

Страница 55: ...s five options Channel 1 Channel 2 AVG SUM and DIFF Use the S and T keys to scroll to the desired option and press ENT Note Channel 2 AVG SUM and DIFF are only available for a two channel UTX878 3 The screen now displays three measurement parameters velocity volumetric and soundspeed Scroll to the desired selection and press ENT 4 The menu now asks for the unit type For velocity or soundspeed meas...

Страница 56: ...below and Table 4 2 on the next page Scroll to the desired option and press ENT If you select Force Value as shown in Table 4 1 above the meter asks for a specific value Use the arrow keys to enter the desired value and press ENT Table 4 1 Error Options and Responses for a 1 Channel Path Meter Option Output Response Totalizer Response Hold Value Holds the last good reading Holds the last good read...

Страница 57: ... vol etc Holds last good reading Holds last good reading and con tinues to totalize based on that good reading Stops totalizing SUM Adds two channels paths using the last good reading Holds last good reading and con tinues to totalize based on two channels paths Stops totaliz ing if either or both channels paths go into error DIF Subtracts two channels paths using the last good read ing Holds last...

Страница 58: ... 255 and press ENT If you select RS232 a list of six options appears Scroll to the desired option and press ENT a The first option asks for the RS232 Status Scroll to the desired selection ON or OFF and press ENT If you are not using RS232 selecting OFF increases response time at lower power settings b The next option asks for the Baud Rate The available choices extend from 300 to 115 200 baud Scr...

Страница 59: ...Reset Totals is highlighted Then press ENT 4 The next window asks you to choose the Channel 1 or 2 Use the S and T keys to scroll to the desired channel and press ENT 5 The next screen displays three choices Reset Fwd Total Reset Rev Total or Reset Both Scroll to the desired choice and press ENT What s Next You have finished entering data in the CONFIG menu Do one of the following To program in ot...

Страница 60: ...Chapter 5 ...

Страница 61: ...Calibration Introduction 5 1 Updating UTX878 Instrument Software 5 1 Checking the Meter Software 5 2 Trimming 4 20 mA via the Keypad 5 3 ...

Страница 62: ... Updating UTX878 Instrument Software 1 To set up the RS232 connect one end of a 9 pin RS232 cable to the COM 1 serial port on a PC and the other end to terminal block TB4 on the UTX878 as described in Chapter 1 Installation 2 On your PC set up the Hyperterminal program Note The use of Hyperterminal is shown here as an example If you are using a different communications software see its manual for ...

Страница 63: ...n 6 Press ENT on the UTX878 keypad Hyperterminal should display the status of the transfer The PC screen should display Update Complete 7 Repeat this procedure for each file that needs to be loaded 8 To check that the software has been loaded correctly proceed to the next section Checking the Meter Software 1 Turn power on The display should boot up with a typical cycling procedure After initializ...

Страница 64: ...Press ENT Record the value shown on the current meter 6 Return to the Loop window and scroll to Base Trim Press ENT 7 Use the arrow keys to enter the base trim value the value recorded in step 5 The loop current should now be the same as the current meter It should read 4 0 0 01 mA Press ENT 8 Repeat steps 3 and 4 9 Return to the Loop window and scroll to Span Trim Press ENT 10 Use the arrow keys ...

Страница 65: ...Chapter 6 ...

Страница 66: ...Error Codes and Diagnostics Introduction 6 1 Error Codes 6 1 Displaying Diagnostic Parameters 6 4 Fluid and Pipe Problems 6 6 Transducer Problems 6 8 ...

Страница 67: ...de messages are discussed in this chapter along with the possible causes and the recommended actions When an error code is generated it will appear in the lower right corner of the LCD screen as discussed in Chapter 3 If an error message appears on the display screen during operation of the Model UTX878 refer to the appropriate section of this chapter for instructions on how to proceed E0 No Error...

Страница 68: ...imits option as described on page 2 18 Refer to the sections on Fluid and Pipe Problems page 6 6 and on Transducer Problems page 6 8 to correct any problems E4 Signal Quality Problem The signal quality is outside the limits programmed in the Error Limits option of the User Program Cause The peak of the upstream or downstream correlation signals has fallen below the correlation peak limit as set in...

Страница 69: ...t any problems E7 Analog Out Error Problem The current setting is outside the programmed limits Cause The calculated output value exceeds the programmed limits Action Verify that the 4 20 loop configuration base and span settings are correct for your process E30 Channel Disabled Problem The channel is not available Cause The channel has been turned off Action Enter the PROGRAM menu and enable the ...

Страница 70: ...and the security code Refer to page 2 2 for details 2 Press the X key The screen will highlight the channel you wish to check Be sure the desired channel appears on the screen or change it as discussed in Chapter 3 3 Press the X key to scroll to the measurement entry in the upper right Press ENT Be sure Diagnostic is highlighted and press ENT 4 Press the X key twice to access the units parameter P...

Страница 71: ...r the down stream transducer 50 75 50 or 75 Thresh Up Displays the value at which the UTX878 detects the signal arrival time for the upstream transducer 100 100 100 or 100 Thresh Dn Displays the value at which the UTX878 detects the signal arrival time for the downstream transducer 100 100 100 or 100 Norm Factor Displays the normalization factor 0 85 1 0 0 85 P Up Displays signal peaks for the ups...

Страница 72: ...particles will absorb or disperse the ultrasound signals This interference with the ultrasound transmissions through the fluid will cause inaccurate flow rate measurements In addition temperature gradients in the fluid flow may result in erratic or inaccurate flow rate readings 2 The fluid must not cavitate near the measurement point Fluids with a high vapor pressure may cavitate near the measurem...

Страница 73: ... installation practices 2 Inaccurate pipe measurements The accuracy of the flow rate measurements is no better than the accuracy of the programmed pipe dimensions Measure the pipe wall thickness and diameter with the same accuracy desired in the flow rate readings Also check the pipe for dents eccentricity weld deformity straightness and other factors that may cause inaccurate readings Refer to Ch...

Страница 74: ...e transducer alignment is critical to assure that the beam can travel from one transducer to the other without undue attentuation Be sure to exactly follow the instructions that came with your transducers and clamping fixtures Also be sure that the actual transducer spacing agrees with the calculated spacing S 3 INTERNAL DAMAGE Ultrasonic transducers consist of a ceramic crystal bonded to the tran...

Страница 75: ...Chapter 7 ...

Страница 76: ...Specifications General Specifications 7 1 Electrical Specifications 7 2 Transducer Specifications 7 3 Pipe Size and Materials 7 3 ...

Страница 77: ...etric flow totalized flow and flow velocity Keypad Six button external keypad Flow Accuracy of Reading Pipe Diameter ID 6 in 150 mm 1 to 2 of reading typical Pipe Diameter ID 6 in 150 mm 2 to 5 of reading typical Note Accuracy depends on pipe size and whether measurement is one path or two path Accuracy to 0 5 of reading may be achievable with process calibration Range 40 to 40 ft s 12 2 to 12 2 m...

Страница 78: ...ion Memory FLASH memory field upgradable Operating Mode Correlation Transit Time Mode with clamp on transducers Input Output Specifications Digital Display 132 X 64 LCD configurable to display up to 2 measurement parameters Digital Communications Standard RS232 serial port for PC or terminal Analog Output 4 20 mA on power loop Cable and Length Transducer 6 ft 10 ft 15 ft 25 ft 50 ft 100 ft integra...

Страница 79: ...ency Standard 2 MHz 4 MHz Mounting Fixture with stainless steel strap Pipe Size and Materials Clamp on Transducers Pipe Materials Can clamp to all metals and most plastics Consult GE Panametrics for concrete composite materials and highly corroded or lined pipes Pipe Sizes 0 5 to 8 in 12 mm to 200 mm Pipe Wall Thickness Up to 3 in 76 mm Area Classifications Standard general purpose ...

Страница 80: ...Appendix A ...

Страница 81: ...Menu Maps The UTX878 PROG Menu A 1 The UTX878 CONFIG Menu A 2 The UTX878 DISP CAL USER SERVICE and FACTORY Menus A 3 ...

Страница 82: ...g Traverses 1 2 3 4 5 Signal Delta T Offset Zero Cutoff Errors Allowed Peak Detection Peak Threshold Transmit Sample Size 1 2 4 8 16 32 Velocity Averaging None 2 5 10 30 60 Stat K Factor Table Single Off K Factor Velocity Meters sec Row 1 Row X Error Limits Min Signal Max Signal Min Vel Max Vel Min Amplitude Max Amplitude Soundspeed Acceleration Press ESC ENT ESC passcode if locked Velocity Meters...

Страница 83: ...Gal min Gal hr MGal day Bar sec Bar min Bar hr Bar day Liter sec Liter min Liter hr Mliter day CuM sec CuM min CuM hr MCuM day English Metric Units Base Span Error Level Hold Value Force HI Force LO Force HH Force LL Force Value Node ID RS232 1200 600 2400 300 4800 9600 19200 38400 57600 115200 Baud Rate Parity Stop Bits None Even Odd 1 2 Data Bits 7 8 Continued in Figure A 3 Ft sec Meters sec Eng...

Страница 84: ...T ESC passcode if locked DISP Contrast Views Contrast 1 2 CAL 4 20 Loop Internal Cal Base Span Percent Mode Base Value Span Value Test Test Trim Normal USER Set Security FullLocked ProgLocked UnLocked SERVICE Voltage Adjustment FACTORY Default Upgrade Versions Yes No Yes No Continued from Figure A 2 ...

Страница 85: ...Appendix B ...

Страница 86: ...CE Mark Compliance Introduction B 1 EMC Compliance B 1 ...

Страница 87: ...grounded as in Table B 1 below for EMC compliance After all the necessary electrical connections have been made seal any unused cable entry holes Note If the instructions in this appendix are followed the unit will comply with the EMC Directive 89 336 EEC Table B 1 Wiring Modifications Connection Cable Type Termination Modification Transducer Shielded cable Terminate shield to case Power Shields t...

Страница 88: ...Appendix C ...

Страница 89: ...Data Records Site Data C 1 ...

Страница 90: ...ransducers Other Transducers Wedge Temp Wedge Temp Frequency Hz Frequency Hz Tw µs Tw µs Wedge Angle Wedge Angle Wedge Sndspd Wedge Sndspd Pipe Material Pipe Material All Clamp On Transducers All Clamp On Transducers Pipe O D Pipe O D Pipe Wall Pipe Wall Path Length P Path Length P Axial Length L Axial Length L Lining Yes No Lining Yes No Lining Material Lining Material Lining Sndspd Lining Sndspd...

Страница 91: ...rors Detection Peak Threshold Detection Peak Threshold Min Thresh N A Min Thresh N A Max Thresh N A Max Thresh N A Xmit Sam Size N A Xmit Sam Size N A Vel Averaging Vel Averaging Global CONFIG System Units English Metric Node ID 4 20 Units Baud Rate 4 20 Base Parity 4 20 Span Stop Bits Error Level Data Bits Channelx Display Channel 1 Channel 2 if applicable Vol Units Vol Units Totalizer Units Tota...

Страница 92: ...12 13 13 14 14 15 15 16 16 17 17 18 18 19 19 20 20 Channelx Reynolds Number Table Channel 1 Channel 2 if applicable Reynolds Row Units kRe K Factor Row Units kRe 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 19 19 20 20 Table C 1 Site Data cont ...

Страница 93: ...Appendix D ...

Страница 94: ...Service Record Introduction D 1 Data Entry D 1 Diagnostic Parameters D 3 ...

Страница 95: ...vice should be recorded in this appendix An accurate service history of the meter can prove very helpful in troubleshooting any future problems Data Entry Record complete and detailed service data for the Model UTX878 in Table D 1 below Make additional copies of the table as needed Table D 1 Service Record Date Description of Service Performed By ...

Страница 96: ...March 2004 D 2 Service Record Table D 1 Service Record cont Date Description of Service Performed By ...

Страница 97: ... Diagnostic Parameters Parameter Initial Current Parameter Initial Current Channel 1 Channel 2 Delta T ns Delta T ns Amp Up Amp Up Amp Dn Amp Dn T Up µs T Up µs T Dn µs T Dn µs Gain Up dB Gain Up dB Gain Dn dB Gain Dn dB Signal Up Signal Up Signal Dn Signal Dn Thresh Up Thresh Up Thresh Dn Thresh Dn Norm Factor Norm Factor P Up P Up P Dn P Dn Quality Up Quality Up Quality Down Quality Down Reynold...

Страница 98: ...30 6 3 Channel Changing in Display 3 2 Channel Path Status Activating 2 4 CONFIG Menu 4 1 A 2 Contrast Setting 3 5 Cycle Skip Acceleration Error E6 6 3 Cycle Time 6 5 D 3 D Data Bits 4 5 Data Record C 1 Delta T 6 5 D 3 Delta T Offset 2 16 Diagnostic Parameters Displaying 6 4 Diagnostics Service Record D 1 Table of Values D 3 DISP Menu A 3 Display Locking 2 3 Unlocking 2 2 Display Adjusting Numeric...

Страница 99: ...or Message Interpreting 3 4 Errors Allowed 2 17 F FACTORY Menu A 3 Flow Accuracy 7 1 Flowcell Problems Fluid 6 6 Pipe 6 7 Fluid Entering Data 2 12 Physical Requirements 6 6 Problems 6 6 Soundspeed 6 6 Fluid Problems 6 6 Fluid Soundspeed 2 13 Fluid Temperature 2 12 Fluid Type Entering 2 12 Fluid Types Measured 7 1 Force Value 4 3 Forward and Reverse Totals Resetting 4 6 Frequency 2 7 Full Lock 2 2 ...

Страница 100: ...imum Velocity 2 19 N No Error E0 6 1 Node ID 4 5 Norm Factor 6 5 D 3 O Operating Mode 7 2 Output Type and Units Entering 4 2 P Parity 4 5 Peak Detection 2 17 Pipe Lining 2 11 Material 2 8 2 9 Measurements 6 7 Problems 6 7 Pipe Materials 7 3 Pipe Problems 6 7 Pipe Sizes 7 3 Pipe Submenu 2 8 Pipe Wall Thickness 7 3 Pipe Entering Parameters 2 8 Power Supply 7 2 Problems Transducers 6 8 Prog Lock 2 2 ...

Страница 101: ...1 Hardware 7 1 Input Output 7 2 Transducer 7 3 Status Submenu 2 4 Stop Bits 4 5 T T Up D 3 Temperature Coefficient 2 7 Thresh Dn 6 5 D 3 Thresh Up 6 5 D 3 Threshold 2 17 Time Delay 2 7 Tracking Windows 2 12 Transducer Cables 1 3 Location 1 2 Transducer Number 2 6 Transducer Operation 2 15 Transducer Spacing Entering in Meter 2 15 Transducer Spacing Setting 1 6 Transducer Specifications 7 3 Transdu...

Страница 102: ... UP Signal Q 6 5 D 3 USER Menu A 3 User Program Data Record C 1 Locking 2 3 Unlocking 2 2 V Velocity Averaging 2 17 Velocity Range Error E3 6 2 W Wall Thickness 2 9 Warranty 1 v Wedge Angle 2 7 Wedge Soundspeed 2 7 Wedge Temperature 2 6 Wiring CE Mark Compliance B 1 Diagram 1 13 Z Zero Cutoff 2 16 ...

Страница 103: ... 90 E mail panametrics panametrics fr Germany Mess und Pruftechnik Robert Bosch Straße 20a 65719 Hofheim Germany Telephone 49 6122 8090 Fax 49 6122 8147 E mail panametrics t online de Italy Via Feltre 19 A 20132 Milano Italy Telephone 02 2642131 Fax 02 26414454 E mail info panametrics it Japan 2F Sumitomo Bldg 5 41 10 Koishikawa Bunkyo Ku Tokyo 112 0002 Japan Telephone 81 03 5802 8701 Fax 81 03 58...

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