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User Manual, Volume 3, Configuration and Advanced Operation

1. SETUP MENU Misc Configuration _ Time Date Setup Station Setup Meter Run Setup Temperature Setup Pressure Setup Grav Density Setup PID Control Setup Prover Setup Product Setup Batch Preset Setup Batch Sequence Factor Setup Printer Setup Use the TU VW up down arrow keys to move the cursor to the appropriate entry and press Enter to access a particular submenu The first menu Misc Configuration should always be completed first as these entries specify the number and type of input and output devices connected to the flow computer Le the menus following the Misc Configuration menu do not ask for configuration data unless a transducer has been defined 2 2 4 Random Access Method In addition to the Setup Menu the data is also presented in related groups such as Temperature Pressure Meter etc You press the group key of your choice to get to a data area By specifying a meter run before or after a group you go directly to the data for that group and that group only Once a group is selected use the Up Down arrow keys to step to a specific data entry within the group You can view data and assuming a valid password has been entered change its value as required If an error is made press Clear re enter the correct data and press Enter to enter the new value The cursor will automatically step to the next data item in that group unless that would cause a total change of screen i e you can always veri
2. ssssssnsseenennnunnnnnnnnnnnnnnnnnnnnnnnnnnnn 1 1 1 2 Product Configuration sitet i ele ee 1 2 1 3 Configurable Sensors per Meter RUN ccscseeecesseeeeeeeseeneeeeeeeeeeeeenseeeeeeeeeeseeaaes 1 2 1 4 Configurable Sensors per Provelr ccccceeccessseceeeeseeneeeeeeeeeeeeeneeeeeeeenseeeneeeneeenaees 1 2 1 5 Temperature iviisiesisshaisnticnsenenauccsannisanaiessiehiesdnhanash tend iuatiaansnsadednaanatemeninandunncnsteemectanniians 1 2 1 6 E E ois esiciin cases sccit so cdieds de neces tases cents nana eda eee deena 1 2 1 7 Station Gea aN EE 1 2 BG Auxiliary INpUtS wisisesssinestancecunassentenaravacsanaiaciatannartuniciainntainaneenantucabsientinenaraseanniaioes 1 2 1 9 Number of products Information Stored Product ecccccscssesseeeeeeeeeeneesees 1 2 1 10 Type of Products Measured cccccccssssseeeessceeeesessennnennenneeeeeesensenneneeeeeneneenenss 1 3 1 11 Batching and Interface Detection sseeeeeeeeeeseseseeneeenneeeeeeeenseeneneeeeeeeeeensesee 1 3 1 12 Auto Proving E TT 1 3 1 13 Retroactive Meter Factors and Override Gravity ssssunssnunnnnnnnnnnnnnnnnnnnnnnnnnnnnnne 1 3 1 14 Retroactive Density Correction Factor eccccsssseeeeeeseeeeeneeeeeeeeeeeeeeeeeneeeeneees 1 3 1 15 Meter Factor LineariZing Curves cccssecesssseeeeeeseeeeeeeeeseeeeeeeseseeeeeeseseeeeeenseeneees 1 4 1 16 PID Control Functions sinc icecsisencetesansceceieaincsteeeeasiecenincnentasesdens
3. 22 26 74 e 06 07 Volume 3c INFO Characters in refer to password levels TIP Use the blank lines provided next to each configuration option to write down the corresponding settings you entered in the flow computer Product Setup via the Random Access Method Setup entries require that you be in the Program Mode In the Display Mode press the Prog key The Program LED will glow green and the Select Group Entry screen will appear Then press Product Enter or Product n Enter n Product 1 through 8 Use WN V keys to scroll 22 26 74 e 06 07 Configuration and Advanced Operation Meter 1 Meter 2 Meter 3 Meter 4 L1A Date of Meter Factor Curve Use this entry to record the date which helps identify when the meter factor curve was determined L1A Meter Factor 1 Up to twelve meter factors per product per meter can be entered The flow computer dynamically interpolates the curve to determine the correct factor to apply at any flow rate L1A Flow Rate 1 Enter the flow rate that existed when the meter factor was determined Up to twelve meter factor flow rates can be entered per meter per product Data sets must be entered lowest flow rate first working up to maximum flow rate last L1A Meter Factor 2 L1A Flow Rate 2 L1A Meter Factor 3 L1A Flow Rate 3 L1A Meter Factor 4 L1A Flow Rate 4 L1A Meter Factor 5 L1A Flow Rate 5
4. Password Maint Y Check Modules Y Config Station Y Config Meter n Config PID n Config D A Out n Front Pnl Counters Program Booleans Program Variables _ Scroll down to Program Variables Y and enter Y Assuming that no variables are as yet programmed the display shows PROG VARIABLE 70xx Note that the cursor is on the line labeled 25 At this point enter the variable equation that will calculate the value of variable 7025 Example 1 To provide a variable 7025 which represents Meter Run 1 gross flow rate in MCF per day in place of the usual MCF per hour multiply the MCF per hour variable 7101 by the constant 24 PROG VARIABLE 70xx 25 7101 24 bbls hr x 0 7 gal min 26 7101 7_ Example 2 To provide a variable that represents gallons per minute 7026 we can convert the barrels per hour variable 7101 to gallons by multiplying by 0 7 0 7 42 60 which is the number of gallons in a barrel divided by the number of minutes in an hour PROG VARIABLE 70xx 25 7101 24 22 26 74 06 07 Omni ERT Chapter 3 User Programmable Functions Example 3 To provide a variable 7028 that represents meter run 1 temperature in degrees Celsius we subtract 32 from the degrees Fahrenheit variable 7105 and divide the result 7027 by 1 8 bbls hr x 24 bbls day PROG VARIABLE 70xx 7101 24 7101 7_ 7105 32 7027 1 8 bbls hr x 0
5. Bbls cccccceeseeceeneeeeeeeeeaeeeeeaeseceeesaeessaeenenees 4 12 4 4 4 Net Weight Delivered NW 4 12 Omni v OMNI 6000 OMNI 3000 User Manual Contents of Volume 3 4 5 Liquid Flow Rate for Prove csccsssesscssessssccrssssccsrsseecocesseneceersesseceosennsessosenss 4 13 4 5 1 Prove Gross Flow Rate at Flowing Conditions Gilet 4 13 4 5 2 Prove Flow Rate using Pulse Interpolation Method 4 13 ds Nomenclature seresa erne Er EIEEE SNR AASE 4 14 4 5 4 Meter Factors for ProversS sssssssssssssssssssssssserssrnssrnssressressressrenstensrnnnsrensrensrensrnnt 4 15 4 6 Calculations for PID Gontrpt essesenseeg ege 4 18 4 6 1 Primary Variable Error Y ep acstasisinccacssarssmtindanamanandincan ia a iria 4 18 4 6 2 Secondary Variable Error e 4 18 4 6 3 Control Output Ce Before Startup Limit Function c cecceeeeeeeeeeeeeteeeeeeees 4 18 4 6 4 Integral Error e 4 19 5 Flow Equations and Algorithms for SI Metric Units Revision 26 74 5 1 5 1 Liquid Flow Rate for Flowmeters ccessssccssssssssccesssscsrensccsussencoeersesensserensazoes 5 1 5 1 1 Volumetric Flow Rate at Flowing Conditions Qy mb 5 1 5 1 2 Volumetric Flow Rate at Base Conditions Qy M AN c sesccccssecsessssesseseseeseseeeseees 5 1 5 1 3 Mass Flow Rate Qm onbe 5 1 SIA Nomenclature EE 5 2 5 2 Correction Factors for Liquid FIOW c ccsecccseseeeeeesseeeeeeeseneeeeeeeeeeeeeeeese
6. Characters in TT refer to L1 Index Points Index Points Index Points Index Points key presses 1 l 2 l 3 4 TIP Use the blank lines 5 6 7 8 provided next to each configuration option to write 9 10 11 12 down the corresponding settings you entered in the 13 14 15 16 flow computer Some of these entries may 17 18 19 20 not appear on the display or in OmniCom Depending on the various configuration Custom Modbus Data Packet 2 Addressed at 201 settings of your specific metering system only those L1 Index Points Index Points Index Points Index Points configuration options which are applicable will be 1 2 3 4 displayed 5 6 7 8 Custom Modbus Data Packet 3 Addressed at 401 L1 Index Points Index Points Index Points Index Points 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2 5 18 Programmable Logic Controller Setup Note See Technical Bulletin TB 960702 Communicating with Allen Bradley Programmable Logic Controllers in Volume 5 for information on the PLC Group n submenu Dm 22 26 74 06 07 a Omni 2 27 Chapter 2 INFO Characters in refer to password levels Characters in refer to key presses TIP Use the bl
7. Density Range 610 5 in Kgs m to 1075 838 5 kl 613 9723 186 9696 594 5418 346 4228 L k o0 04862 o0 0 4388 RHO product density at reference temperature When Product is between Jet Group and Gasoline aTr Ai A RHO Where A amp B are numerical constants obtained from API Standards as follows Between Jet amp Gasoline API Tables 54B Density Range Kgs m 770 5 to 787 5 CA 0 00336312 2680 3206 5 4 YY Omni 26 74 06 07 Volume 3c Configuration and Advanced Operation AT differential temperature Ta Tr Where Ta actual temperature in C T reference temperature in C 5 2 3 Correction Factor for Pressure on Liquid Cp 1 1 P P xF Cp Where Cp correction factor for pressure on liquid dimensionless P flowing pressure in kiloPascals gauge kPag Pe equilibrium vapor pressure calculated from the correlations developed by Dr R W Hankinson et al of Phillips Petroleum Company for members of the GPA and published as GPA Technical Publication N 15 F Compressibility factor for hydrocarbons using API Chapter 11 2 1M for Crude Oil 638 to 1075 kg m density 30 C to 90 C using API Chapter 11 2 2M for Hydrocarbon Products 350 637 kg m density 46 C to 60 C Dm 26 74 06 07 Omni 5 5 Chapter 5 Flow Equations and Algorithms for SI Metric Units Revision 26 74 5 3 Densities and Other Propertie
8. S also labeled Print T also labeled Prove U also labeled Status V also labeled Alarms W also labeled Product X also labeled Setup Y also labeled Input Z also labeled Output The TF HA Up Down Left Right arrow keys and the Prog Alpha Shift and Clear keys cannot be used in a key press sequence 2 22 User Display 4 Key Press Sequence 1 Variable 297 Variable 3 Variable 4 Variable Tag User Display 5 Key Press Sequence 17 Variable 2 Variable 3 Variable 4 Variable Taq User Display 6 Key Press Sequence 1 Variable 2 Variable 3 Variable 4 Variable Taq User Display 7 Key Press Sequence 1 Variable 297 Variable 3 Variable 4 Variable Tag User Display 8 Key Press Sequence 1 Variable 297 Variable 3 Variable 4 Variable Tag User Programmable Functions es FE fe Index Decimal Points a ye G G Index Decimal Points a ee Index Decimal Points Late Index Decimal Points ee Index Decimal Points 22 26 74 e 06 07 Volume 3c TIP Use the blank lines provided next to each configuration option to write down the corresponding settings you entered in the flow computer Some of these entries may not appear on the display or in OmniCom Depending on the various configuration settings of your specific metering system only those configuration options which are app
9. Example 2 Automatic Run Switching for 4 Meter Run Application Object To improve metering accuracy by automatically selecting the correct flow meter run to be active in a multi run application Small turbines need to be protected from over speeding while for best accuracy larger turbines should be valved off when the flow drops below their minimum rate In the example shown except when switching from one flow meter to the other only one flow meter run is active at one time This is one example only The number of runs open for a given application at any flow rate obviously depends on the size of the flow meters used J sh Sey H Aiea H THRESHOLD D zi K us 3 LO x oe Z THRESHOLI y 2 HIGH DK g THRESHOL 49 LO Sp i 0 v7 THRESHOLL THRESHOLD RK F 1 HIGH 1 BBLS Hf NUMBERS IN P amp RENTHESE RESPOND TO BOOLEAN POINT ASSIGNED TO THE ABOVE EXAMPLE Fig 3 1 Figure Showing Automatic Four Meter Flow Zone Thresholds Switching is based on the station flow gross flow rate which is compared to preset switching thresholds entered by the user See Meter Station Settings in Chapter 2 Threshold Flags 1 2 and 3 are set and reset according to the actual station flow rate The first task is to identify the 4 zones and assign programmable Boolean points to them This allows us to include them in further Boolean statements Zone 1 NOT Flag 1 AND NOT Flag 2 AND NOT Flag 3 Zone 2 Flag 1 AND NOT F
10. L1 Prover Wall Thickness This entry is not applicable to Master Meter proving Enter the wall thickness of the prover tube in inches or mm which is used to calculate the CPSP factor 2 54 Omni 22 26 74 06 07 Volume 3c Prover Setup via the Random Access Method Setup entries require that you be in the Program Mode In the Display Mode press the Prog key The Program LED will glow green and the Select Group Entry screen will appear Then press Prove Setup Enter and use WN WV keys to scroll 22 26 74 e 06 07 Configuration and Advanced Operation L1 Modulus of Elasticity This entry is not applicable to Master Meter proving Enter the Prover Tube Modulus of Elasticity used to calculate the CPSP factor 6 For US Units Mild Steel 3 0E7 Stainless Steel 2 8E7 to 2 9E7 D For Metric Units 2 07E8 or 1 93E8 to 2 0E8 L1 Cubical Thermal Expansion Coefficient of Tube This entry is not applicable to Compact Provers and Master Meter proving Enter the Prover Tube Cubical Coefficient of Thermal Expansion for full sized pipe provers used to calculate the CTSP factor 6 For US Units Mild Steel 0 0000186 Stainless Steel 0 0000265 6 For Metric Units Mild Steel 0 0000335 Stainless Steel 0 00000477 L1 Base Pressure This entry is not applicable to Master Meter proving Enter the atmospheric pressure in PSlg or kPag at which the prover was water drawn L1 Base Temperatu
11. L1 Target Slave ID Each transfer of data is called a transaction Enter the Modbus ID of the other slave involved in the transaction Modbus ID 0 can be used to broadcast write to all Modbus slave devices connected to the peer to peer link Other valid IDs range from 1 247 L1 Read Write Enter R if data will be read from the slave Enter W if data will be written to the slave L1 Source Index Enter the database index number or address of the Modbus point where the data is to be obtained corresponding to the first data point of the transaction This is the slave s database index number when the transaction is a read and the master s database index number when the transaction is a write Refer to Volume 4 for a list of available database addresses or index numbers L1 Number of Points Enter the number of contiguous points to transfer Each transaction can transfer multiple data points that can be any valid data type recognized by the OMNI The maximum number of points that can be transferred depends on the type of data IEEE floats 4bytes each 63 max 32 bit Integers 4 bytes each 63 max 16 bit integers 2 bytes each 127 max D Packed coils or status 8 to a byte 2040 max The OMNI automatically knows what Modbus function to use and what data types are involved by the Modbus index number of the data within the flow computer database The destination index number d
12. Sarasota 6 UGC L1 Password Level required except for the Correction Factor Solartron Station Meter 1 Meter 2 Meter 3 Meter 4 Pycnometer Density correction factor usually very close to 1 0000 An A and B factor are provided to cover differing products limit 0 8 to 1 2 Meter Station only applies Factor A L1A Corr Factor B L1 Ko L1 K L1 K2 L1 Kis L1 Kis L1 K2oa L1 Koos L1 Kata L1 Kan L1 Kp L1 Ky Sarasota Meter 1 Meter 2 Meter 3 Meter 4 Pycnometer Density correction factor usually very close to 1 0000 An A and B factor are provided to cover differing products limit 0 8 to 1 2 L1B Corr Factor B L1 Do L1 To L1 Tei L1 Tear L1 Proet L1 Peai 2 49 Chapter 2 User Programmable Functions UGC Station Meter 1 Meter 2 Meter 3 Meter 4 INFO Characters in at D L1 A Corr Factor A refer to password levels Tae ts eae EE EE Pycnometer Density correction factor usually very close to 1 0000 An A and B factor are provided to cover differing products limit 0 8 to 1 2 TIP Use the blank lines provided next to each L1A Corr Factor B configuration option to write down the corresponding settings you entered in the L1 Ko sg Oe EE flow computer L1 K Digital Densitometer L1 K2 Be E Setup via the Random L1 Te Access Method To access these settings inthe L1 Ky Program Mode press SE aa Factor Density Meter L1
13. n Heptane n Octane n Nonane 7219 721 19 n Decane 7342 733 48 Propylene figures are derived from API 11 3 3 2 INFO API 2540 Tables 23A or 23B US or 53A or 53B metric are also automatically used when applicable Tables 24A and 53A apply to Generalized Crude Oils SG range 1 076 6110 Dens range 1075 610 4 Tables 24B and 53B apply to Generalized Products SG range 1 076 6535 Dens range 1075 652 8 GPA TP16 and TP16M apply to LPG NGL Products SG range 637 495 on Version 20 and 636 4 494 5 on Version 24 of the OMNI These calculation methods use API Chapter 11 2 1 or 11 2 2 and 11 2 1M or 11 2 2M to calculate the pressure correction factor CPL 2 66 Product 8 L1 Name L1 Table Select L2 API Relative Density Gravity Override L2 Relative Density SG Override L2 Reference Density Override L2 Reference Temperature L2 Alpha Coefficient L2 F Factor Override L2 Vapor Pressure at 100 F 37 8 C L1A Density Factor A B Meter 1 L1A Date of Meter Factor Curve L1A Meter Factor 1 L1A Flow Rate 1 L1A Meter Factor 2 L1A Flow Rate 2 L1A Meter Factor 3 L1A Flow Rate 3 L1A Meter Factor 4 L1A Flow Rate 4 L1A Meter Factor 5 L1A Flow Rate 5 L1A Meter Factor 6 L1A Flow Rate 6 L1A Meter Factor 7 L1A Flow Rate 7 L1A Meter Factor 8 L1A Flow Rate 8 L1A Meter Factor 9 L1A Flow Rate 9 L1A Meter Factor 10 L1A Fl
14. 2 64 Product 6 L1 Name L1 Table Select L2 API Relative Density Gravity Override L2 Relative Density SG Override L2 Reference Density Override L2 Reference Temperature L2 Alpha Coefficient L2 F Factor Override L2 Vapor Pressure at 100 F 37 8 C L1A Density Factor A B Meter 1 L1A Date of Meter Factor Curve L1A Meter Factor 1 L1A Flow Rate 1 L1A Meter Factor 2 L1A Flow Rate 2 L1A Meter Factor 3 L1A Flow Rate 3 L1A Meter Factor 4 L1A Flow Rate 4 L1A Meter Factor 5 L1A Flow Rate 5 L1A Meter Factor 6 L1A Flow Rate 6 L1A Meter Factor 7 L1A Flow Rate 7 L1A Meter Factor 8 L1A Flow Rate 8 L1A Meter Factor 9 L1A Flow Rate 9 L1A Meter Factor 10 L1A Flow Rate 10 L1A Meter Factor 11 L1A Flow Rate 11 L1A Meter Factor 12 L1A Flow Rate 12 Meter 2 Meter 3 Meter 4 SS Womni 22 26 74 e 06 07 Volume 3c INFO Characters in refer to password levels TIP Use the blank lines provided next to each configuration option to write down the corresponding settings you entered in the flow computer Product Setup via the Random Access Method Setup entries require that you be in the Program Mode In the Display Mode press the Prog key The Program LED will glow green and the Select Group Entry screen will appear Then press Product Enter or Product n Enter n Product 1 through 8 Us
15. Controlling on Secondary Variable e Repeats per Minute of Sec Variable x Sample period x es Xe n 4 Ei 5 16 Omni 26 744 06 07
16. Enter the Override Code strategy 0 Never use override code 1 Always use override code 2 Use override code on transmitter failure 3 On transmitter failures use last hour s average L1 at 4mA Enter the temperature engineering units that the transducer outputs at 4mA or 1volt or lower range limit LRV of Honeywell Smart Transmitters L1 at 20mA Enter the temperature engineering units that the transducer outputs at 20mA or 5volts or upper range limit URV of Honeywell Smart Transmitters L1 Damping Code This entry only applies to Honeywell digital transmitters connected to an H Type combo module The process variable i e temperature is filtered by the transmitter before being sent to the flow computer The time constant used depends on this entry For Temperature Transmitters enter the selected Damping Code 0 0 seconds 5 6 3 seconds 1 0 3 seconds 6 12 7 seconds 2 0 7 seconds 7 25 5 seconds 3 1 5 seconds 8 51 5 seconds 4 3 1 seconds 9 102 5 seconds 5 YY Omni 2 43 Chapter 2 INFO The first menu Misc Configuration should always be completed first as these entries specify the number and type of input and output devices connected to the flow computer i e the menus following the Misc Configuration menu do not ask for configuration data unless a transducer has been defined Flow Computer Configuration via the Menu Selection Method It is best to use this me
17. Flow Rate 9 L1A Meter Factor 10 L1A Flow Rate 10 L1A Meter Factor 11 L1A Flow Rate 11 L1A Meter Factor 12 L1A Flow Rate 12 Meter 2 Meter 3 Meter 4 SS Womni 22 26 74 e 06 07 Volume 3c INFO Characters in refer to password levels TIP Use the blank lines provided next to each configuration option to write down the corresponding settings you entered in the flow computer Product Setup via the Random Access Method Setup entries require that you be in the Program Mode In the Display Mode press the Prog key The Program LED will glow green and the Select Group Entry screen will appear Then press Product Enter or Product n Enter n Product 1 through 8 Use IM V keys to scroll 22 26 74 e 06 07 Configuration and Advanced Operation Product 5 L1 Name L1 Table Select L2 API Relative Density Gravity Override L2 Relative Density SG Override L2 Reference Density Override L2 Reference Temperature L2 Alpha Coefficient L2 F Factor Override L2 Vapor Pressure at 100 F 37 8 C L1A Density Factor A B Meter 1 L1A Date of Meter Factor Curve L1A Meter Factor 1 L1A Flow Rate 1 L1A Meter Factor 2 L1A Flow Rate 2 L1A Meter Factor 3 L1A Flow Rate 3 L1A Meter Factor 4 L1A Flow Rate 4 L1A Meter Factor 5 L1A Flow Rate 5 L1A Meter Factor 6 L1A Flow Rate 6 L1A Meter Factor 7 L1
18. L1A Meter Factor 6 L1A Flow Rate 6 L1A Meter Factor 7 L1A Flow Rate 7 L1A Meter Factor 8 L1A Flow Rate 8 L1A Meter Factor 9 L1A Flow Rate 9 L1A Meter Factor 10 L1A Flow Rate 10 L1A Meter Factor 11 L1A Flow Rate 11 L1A Meter Factor 12 L1A Flow Rate 12 Ei YY Omni 2 59 Chapter 2 User Programmable Functions INFO The following data rounded to 4 digits is from GPA 2145 92 and TP16 Product S G kg m Ethane 3562 355 85 Propane 5070 506 90 HD5 5010 500 50 5050 504 50 5100 509 50 152285 522 28 5629 562 34 5650 564 44 5840 583 42 5850 584 42 Iso Pentane 6247 624 08 n Pentane 6311 630 48 n Hexane 6638 663 14 Natural Gasolines 6650 6882 7070 Propylene Iso Butane n Butane 664 34 687 52 706 30 n Heptane n Octane n Nonane 7219 721 19 n Decane 7342 733 48 Propylene figures are derived from API 11 3 3 2 INFO API 2540 Tables 23A or 23B US or 53A or 53B metric are also automatically used when applicable Tables 24A and 53A apply to Generalized Crude Oils SG range 1 076 6110 Dens range 1075 610 4 Tables 24B and 53B apply to Generalized Products SG range 1 076 6535 Dens range 1075 652 8 GPA TP16 and TP16M apply to LPG NGL Products SG range 637 495 on Version 20 and 636 4 494 5 on Version 24 of the OMNI These calculation methods use API Chapter 11 2 1 or 11 2 2 and 11 2 1M or 11 2 2M to calculate
19. actual correction factor for percent of sediment and water S amp W content in fluid dimensionless Omni 4 11 Chapter 4 Flow Equations and Algorithms for US Customary Units Revision 22 74 Recalculated Net Standard Volume in Metric Units Nm m Nm Recalc NSVpecalc C APleo Where Nm Recalc recalculated net standard volume at 15 C and 101 325 kPa in cubic meters m CAPIg9 correction factor for APlgo see table below 0 0 12 0 0 15893 12 1 31 4 0 15892 4 4 3 Factored Gross Volume FGV Bbls FGV BGF x Me Where FGV factored gross volume in barrels Bbls BGF batch gross flow rate in barrels per hour Bbls hr Mr average meter factor see 5 2 1 this chapter 4 4 4 Net Weight Delivered NWD m 589 9483 NWD kton NSVpecaic x 0 0375 gt APL 1315 EEE NWD orton NWD iton x 1 01605 Where NWD l ton net weight delivered in US customary units long tons NWD m ton net weight delivered in metric units metric tons NSVRecalc recalculated net standard volume at 60 F and 0 PSlg in barrels Bbls 4 12 Omni 22 74 07 07 Volume 3c 22 74 e 06 07 Configuration and Advanced Operation 4 5 Liquid Flow Rate for Provers The calculations performed for unidirectional bi directional and small volume compact provers are as follows 4 5 1 Prove Gross Flow Rate at Flowing Conditions Bbls hr Gross Flow Rate for Uni and Bi directional P
20. is best to use this method when programming an application for the first time as every possible option and variable will be prompted Once a computer is in operation and you become familiar with the application you can decide to use the faster Random Access Method described below Once you have finished entering data in a setup submenu press the Prog key to return to the Select Group Entry screen Proceed as described in this manual for each setup option Time and Date Setup via the Random Access Method Setup entries require that you be in the Program Mode In the Display Mode press the Prog key The Program LED will glow green and the Select Group Entry screen will appear Then press Time Enter and use WN V keys to scroll 22 26 74 e 06 07 Configuration and Advanced Operation 2 6 Setting Up the Time and Date 2 6 1 Accessing the Time Date Setup Submenu Applying the Menu Selection Method see sidebar in the Select Group Entry screen Program Mode press Setup Enter and a menu similar to the following will be displayed kkk xk k SETUP MENU Misc Configuration Time Date Setup Station Setup Use the TU up down arrow keys to move the cursor to Time Date Setup and press Enter to access the submenu 2 6 2 L1 OMNI Time Enter Current Time using the correct method hh mm ss To change only the hour minutes or seconds move cursor to the respective p
21. it can be corrected for pressure effects by assigning a station pressure point If a separate pressure transmitter is not available enter a meter pressure transmitter I O point Density Pressure Tag Enter the 8 character tag name used to identify this density pressure transducer on the LCD display Chapter 2 INFO Characters in Y refer to password levels Characters in refer to key presses TIP Use the blank lines provided next to each configuration option to write down the corresponding settings you entered in the flow computer Some of these entries may not appear on the display or in OmniCom Depending on the various configuration settings of your specific metering system only those configuration options which are applicable will be displayed INFO The number of process variable I O points available depends on the number of combo modules installed see Chapter 2 in Volume 1 for more information Point numbers range from 01 through 24 Assign 0 to invalidate the assigning of a variable UO Type Mismatch The computer will not let you assign the same UO point to incompatible transducer types i e an I O point cannot be assigned as a temperature input for Meter Run 1 and a pressure input for Meter Run 2 If the I O Type Mismatch message is displayed recheck the I O Shared Transducers Enter the same UO point to share transducers between meter runs Correcting a M
22. l EI a Omni 3 7 Chapter 3 3 8 User Programmable Functions 3 2 4 How the Digital I O Assignments are Configured We will use Physical I O Points 11 12 13 and 14 to connect to valve limit switches SW1 SW2 SW3 and SW4 respectively The switches activate when the appropriate valve is fully open The points are designated as inputs by assigning them to the dummy input Boolean Point 1700 see the Command and Status Booleans on a later page Their data base point numbers are simply their I O point number preceded by 10 e g I O Point 11 1011 Physical I O points 15 16 17 and 18 are wired so as to open the meter run valves V1 V2 V3 and V4 They will be assigned to the Boolean Flags 32 Point 1032 through 35 Point 1035 which represent the required state of V1 through V4 as explained below The Boolean equations are as follows V1 NOT SW2 AND NOT SW3 AND NOT SW4 OR Zone 1 Valve 1 is opened when the flow is in Zone 1 and will remain open until at least 1 of the other 3 valves is fully open Valves V2 V3 and V4 are programmed in a similar fashion V2 NOT SW1 AND NOT SW3 AND NOT SW4 OR Zone 2 V3 NOT SW1 AND NOT SW2 AND NOT SW4 OR Zone 3 V4 NOT SW1 AND NOT SW2 AND NOT SW3 OR Zone A To simplify we pre process the common terms The term NOT SW3 AND NOT SW4 is used to determine V1 and V2 The term NOT SW1 AND NOT SW2 is used to determine V3 and V4 Assigning the next valid point numbers to our statement
23. 1 1A and 2 below The initial privileged password for each Modbus port is selected via this password level This level allows technician access to most entries within the flow computer with the exception of I O Points assignments programmable variables and Boolean statements and passwords other than Keypad Level 1 This level allows technician access to the following entries only Meter Factors K Factors e Densitometer Correction Factors Pycnometer Factor Allows access to the operator type entries These entries include Transducer Manual Overrides e Product Gravity Overrides Prover Operations Batching Operations 22 26 74 06 07 Omni 2 3 Chapter 2 INFO Characters in refer to key presses INFO See Technical Bulletin TB 960701 in Volume 5 for setting Level B and Level C passwords using OmniCom Note Level B and Level C passwords for each Modbus port cannot be viewed or changed from the keypad INFO The Help System is not limited to just the Program Mode Context sensitive help is available in all modes of operation CAUTION 5 These units have an integral latching mechanism which first must be disengaged by lifting the bezel upwards before withdrawing the unit from the case 2 4 User Programmable Functions Changing Passwords at the Keypad 1 At the keypad press Prog Setup Enter 2 With the cursor blinking on Misc Configuratio
24. 2 172 Pinter ne EE 2 69 SIT 22 26 74 06 07 Volume 3c Configuration and Advanced Operation 3 User Programmable Functions sciiicciccccsicicinacsasiesccscnssssssnscennnacdsnesessssnansauasasesnsdans 3 1 Ski aoo LU Lenio a T a a E E 3 1 3 2 User Programmable Boolean Flags and Statements cssseseseesseeeesseenees 3 1 KE Whatis a Boolean EEN 3 1 3 2 2 Sign of Analog or Calculated Variables 5001 Gpo0o0t 3 3 3 2 3 Boolean Statements and Functions ccccececeeseeeeeneeceeeee sean eeeeaeeeeeeeesaeeesaeeseneeees 3 3 3 2 4 How the Digital I O Assignments are Confgured 3 8 3 3 User Programmable Variables and Statements ccssseeeceesseeeeeeeeeneeeeeeeeees 3 10 3 3 1 Variable Statements and Mathematical Operators Allowed 3 10 3 3 2 Using Boolean Variables in Variable Giaiements 3 12 3 3 3 Entering Values Directly into the User Variables cc cccccceeseeeeeeeeeeeeeeeseeeeeeeees 3 13 3 3 4 Using the Variable Expression as a Promi 3 13 3 3 5 Password Level Needed to Change the Value of a User Variable seseseseeesses 3 13 3 3 6 Using Variables in Boolean Expressions cc cccceceeeeeeeeeeeeeeeeeeeeeetaeeeeeeseneees 3 14 3 4 User Configurable Display Screens ccccesseeeeeeeeeeeeeeeeeeeeeeeseeeeeeesseneeeeeeeeees 3 15 4 Flow Equations and Algorithms for US Customary Units Revision 22 74 4 1 4 1 4 2 4 3 4 4 22 26 74 e 06 07 Liquid Flow
25. 26 74 06 07 Omni iii 2 8 2 9 2 10 2 11 2 12 2 13 2 14 2 15 2 16 2 17 OMNI 6000 OMNI 3000 User Manual Contents of Volume 3 2 7 2 Meter Station Settings 0 ccccccceececneceeeeeeeeeeecaeeeeaeeeeeaeeesaaeeeeaaeseeeeeseaeessaeeseaeeseaees 2 34 Configuring Meter RUNS saicciscssncetescseseceteesssce suse secencnsetnccceceensesasasanetesanseccneaceannecs 2 37 2 8 1 Accessing the Meter Run Setup Submenu cceeceeeeeeeeeeeeeeeeeeteeeeeseaeeeeaeeeeaees 2 37 SR Meter Run Settings eeeeEeggek ae 2 37 Configuring Temperature scvisiesceicsecsccetcesssec execs anccenceinesaetaczatesensenensteemetenneaesannnes 2 40 2 9 1 Accessing the Temperature Setup Gubmen 2 40 2 9 2 Station and Meter Run Temperature Geitings eee reeerer neeese rrene 2 40 2 9 3 Station and Meter Run Density Temperature Geitigs errereen 2 41 2 9 4 Prover Temperature Settings cccccsceceeceeeeeeeeeeneeceeeeeceaeeesaaeeseaeeseeeeeseaeeseaeeeeaees 2 42 2 9 5 Prover Density Temperature Settings cecccccssecseseeeeeeeeeeeaeeeeeeeseeeesaeeseaeeeenees 2 43 Configuring Pressure sasssssnnneunnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnunnnnnnnnnn nnmnnn nnmnnn nnnm 2 44 2 10 1 Accessing the Pressure Setup Gubmen 2 44 2 10 2 Station and Meter Run Pressure Gettings 2 44 2 10 3 Station and Meter Run Density Pressure Settings cccccceeeeeeeseeeeeeseeeeeeeeeeees 2 45 2 10 4 Prover Pressure Gettngs scenes eaeeee
26. 5 15 55 4 Integral E Tossebierg ee aA aiaa a a aaia iaaa 5 16 vi SIT 22 26 74 06 07 Volume 3c Configuration and Advanced Operation Figures of Volume 3 Fig 1 1 Typical Configuration Using Helical Turbine Positive Displacement Flowmeters se0sne 1 1 Fig 2 1 Figure Showing Program Inhibit Switch 0 0 2 ccceeeseeeeeeeeceeeeeeeaeceeeeeeeeaeeeeaaeseeeeesaeeesaaeeseaeeseaees 2 4 Fig 3 1 Figure Showing Automatic Four Meter Flow Zone ThresholdS AA 3 6 Fig 3 2 Figure Showing Four Meter Run Valve Switching essessssessssssisssrssrisssrrssrrssrrssrnssrnssressrnssre 3 7 Fig 3 3 Keypad Layout A through Z Keys 3 16 Dm 22 26 74 06 07 Omni vii OMNI 6000 OMNI 3000 User Manual Contents of Volume 3 Ei viii Omni 22 26 74 06 07 Volume 3c Configuration and Advanced Operation He For Your information Rt Omni Measure the Difference OMNI flow computers Our products are currently being used world wide at Offshore oil and gas production facilities Crude oil refined products LPG NGL and gas transmission lines Storage truck and marine loading offloading terminals Refineries petrochemical and cogeneration plants 22 26 74 e 06 07 About Our Company OMNI Flow Computers Inc is the world s leading manufacturer and supplier of panel mount custody transfer flow computers and controllers Our mission is to continue to achieve higher levels of customer and user satisfa
27. 53A or 53B metric are also automatically used when applicable Tables 24A and 53A apply to Generalized Crude Oils SG range 1 076 6110 Dens range 1075 610 4 Tables 24B and 53B apply to Generalized Products SG range 1 076 6535 Dens range 1075 652 8 GPA TP16 and TP16M apply to LPG NGL Products SG range 637 495 on Version 20 and 636 4 494 5 on Version 24 of the OMNI These calculation methods use API Chapter 11 2 1 or 11 2 2 and 11 2 1M or 11 2 2M to calculate the pressure correction factor CPL 2 58 User Programmable Functions L2 Relative Density SG Override This entry applies only to US units Revision 22 It will appear depending on which table is selected above You may enter an override gravity as either API or SG units when measuring crude oil or generalized refined products The Computer will accept any positive override value and use it in the calculations To use the live measured density or gravity value obtained from a densitometer gravitometer in the equations enter any minus number The flow computer will then correct the signal from the densitometer or gravitometer to 60 F if required this may be flowing at flowing or reference conditions see Meter Run I O Point Configuration Should the gravitometer fail the flow computer can be made to use the absolute value of the API Gravity Override If the override code in Grav Density Setup is set to 5 On transmitter fai
28. 6 Using Variables in Boolean Expressions In some cases it is also necessary to trigger some type of an event based on the value of a calculated variable Boolean variables used in the Boolean expressions and described in the previous text can have only one of two values ON or OFF TRUE or FALSE How can the floating point numbers described in this chapter be used in a Boolean expression Simply using the fact that a variable can be either positive TRUE or negative FALSE Any variable or floating point can be used in a Boolean expression Example Provide an alarm and snapshot report which will occur when the absolute difference in net flow rate between Meter Runs 1 and 2 exceeds 10 bbls hr but only when Meter Run 1 flow rate is greater than 1000 bbls hr PROG VARIABLE 70xx 30 7102 7202 31 7030 10 32 7102 1000 Variable 7031 will be positive TRUE if Meter Runs 1 and 2 flow rates differ by more than 10 bbls hr Variable 7032 will be positive TRUE when Meter Run 1 flow rate exceeds 1000 bbls hr User variables 7031 and 7032 shown above must both be positive for the alarm to be set In addition we will require that the condition must exist for 5 minutes to minimize spurious alarms The alarm will be activated by Physical I O Point 02 and we will use Boolean statements 1025 and 1026 Enter the following Boolean statements 1025 and 1026 used as example only BOOLEAN POINT 10xx 25 7031 amp 7032 26 171
29. 7 gal min Example 4 Gross barrels within the flow computer are simply flow meter counts divided by the flow meter K Factor pulses per barrel i e gross barrels are not meter factored To provide a variable 7029 which represents Meter Run 1 gross meter factored barrels multiply the batch gross barrel totalizer 5101 by the batch flow weighted average meter factor 5114 PROG VARIABLE 70xx 7101 24 7101 7_ 7105 32 7027 1 8 5101 5114 3 3 2 Using Boolean Variables in Variable Statements Boolean points used in a programmable variable statement are assigned the value 1 0 when the Boolean value is TRUE and 0 0 when the Boolean value is FALSE By multiplying by a Boolean the user can set a variable to 0 0 when the Boolean point has a value FALSE Example Provide a variable 7025 which functions as a Report Number The report number which will appear on each batch end report must increment automatically after each batch and reset to zero at the contract day start hour on January 1 of each year PROG VARIABLE 70xx Clear batch report 25 7025 1835 ear _ number on Jan 1 26 1834 7025 0 Contract Hour 27 Boolean 1835 is true one calculation cycle at the end of a batch Boolean point 1834 is equal to 1 0 for one calculation cycle on the contract day start hour on January 1 If statement 1834 is true we reset counter 7025 3 12 Y Omni 22 26 74 06 07 Volume 3c Current v
30. Enter an I O point of 0 to cancel an incorrectly entered I O point then enter the correct number 22 26 74 e 06 07 Configuration and Advanced Operation PL Density Temperature I O Point Number Enter the I O point number to which the temperature sensor used to compensate the station densitometer is connected When a digital densitometer is used as the station transducer it can be corrected for temperature effects by assigning a temperature UO point For the station product interface densitometer enter a meter run temperature sensor in cases where a separate temperature transmitter is not available RTD probes should be assigned to the 1 channel on any type of combo module RTD probes can also be assigned to the 2 channel of B Type combo modules Density Temperature Tag Enter the 8 character tag name used to identify this density temperature transducer on the LCD display Density Temperature Type Enter the densitometer temperature transmitter type 0 RTD probes that follow the DIN curve and a 0 0385 1 RTD probes that follow the American curve and a 0 0392 2 Honeywell smart transmitter connected to an H combo module or a transducer with a 4 20mA linear output PL Density Pressure I O Point Number Enter the I O point number to which the pressure transmitter used to compensate the station digital densitometers is connected When a digital densitometer is used as the product interface detector
31. Installation Installers System Project Managers Engineers Programmers Advanced Operators Operators o o Volume 2 Basic Operation e All Users Volume 3 Configuration and Advanced Operation e Engineers Programmers e Advanced Operators Volume 4 Modbus Database Addresses and Index Numbers e Engineers Programmers e Advanced Operators Volume 5 Technical Bulletins Users with different levels of expertise x Omni 22 26 74 06 07 Volume 3c User Reference Documentation The User Manual is structured into five volumes Volumes 1 and 5 are generic to all flow computer application revisions Volumes 2 3 and 4 are application specific These have four versions each published in separate documents i e one per application revision per volume You will receive the version that corresponds to your application revision The volumes respective to each application revision are Revision 20 24 74 Volume s 2a 3a 4a Revision 21 25 74 Volume s 2b 3b 4b Revision 22 26 74 Volume s 2c 3c 4c Revision 23 27 74 Volume s 2d 3d 4d For example if your flow computer application revision is 20 24 74 you will be supplied with Volumes 2a 3a amp 4a along with Volumes 1 amp 5 22 26 74 e 06 07 Configuration and Advanced Operation Manual Structure The User Manual comprises 5 volumes each contained in separate binding for easy manipulation You will find a detaile
32. Meter Factor Old API Run counts repeatability is a more stringent test but may be difficult to achieve due to changing temperature and pressure during the prove sequence Calculating repeatability based upon the calculated meter factor takes into account variations in temperature and pressure and may be easier to achieve L2 Run Repeatability Maximum Deviation Enter the maximum allowable percentage deviation between run counts or run meter factors depending on selection of previous entry The deviation is calculated by comparing the high low meter counts or meter factors based on their low point as follows Deviation 100 High Low Low Point This deviation is always calculated using the meter factor when the Master Meter Method of proving is selected Ei a Omni 2 55 Chapter 2 INFO Characters in refer to password levels TIP Use the blank lines provided next to each configuration option to write down the corresponding settings you entered in the flow computer 2 56 User Programmable Functions L2 Meter Factor Deviation from Meter Factor Curve The maximum deviation allowed between the new calculated meter factor and the interpolated meter factor obtained from the meter factor curve for the current product see Product Setup this chapter L2 Number of Meter Factors in Historical Average A maximum of 10 previous meter factors normalized to base prove flow rate can be s
33. PID Control Settings cerun aaa aaa aaa ii 2 14 2 5 10 Analog Output Gettinge 2 15 2 5 11 Front Panel Counter Settings cccscesesceeceneeeeeaeeeeneeeeeeeeeaeseeaaeeseeeeseaeeesaeeesenees 2 16 2 5 12 Programmable Boolean Statement cccccccceeeceeseeceeeeeeeaeeeeeeeseeeeeseaeessnaeeeeees 2 17 2 5 13 Programmable Variable Statement ccccccccsseceeeeeseeeeeeeeaeeeeneeseeeeeseaeeeenaeeeenes 2 19 2 5 14 User Display Settings eecccceccceccceceeneeeeeeee cee eeeaaeeeeeeeeseaeeeeaaesseneesnaeeesaeeseaaeeenees 2 21 2 5 15 Digital UO Point Geng 2 23 2 5 16 Serial Input Output Geitings ccc cece ceesceeceeeeeeeeeeeeeeeeeeeeecaeessaaeeeeeeeseeessnaeeseneees 2 25 2 5 17 Custom Modbus Data Packet SettingS c cccccceeseeceeeeeeeeeeeeeeeeseeeeeseaeeseaeeeeeees 2 27 2 5 18 Programmable Logic Controller Setup ccccccseeeeeeeeeeeeeeeeaeeeeneeseeeeeseaeeeeaeeeeeees 2 27 2 5 19 Archive File Setup nutristinon ea aaa a a aea 2 28 2 5 20 Peer to Peer Communications Settings c ccccecceesceceeeeeceeeeeeeeeseeeeeseaeeeenaeeeenees 2 28 2 6 Setting Up the Time and Date cccccsseeeeesseeeeeeeeseeeeeeeessneeeeeesseeeeesnsenneneenesnees 2 33 2 6 1 Accessing the Time Date Setup Gubmen 2 33 2 6 2 Vue BREET 2 33 2 7 Configuring the Meter Station cccssseecessseeeeeeeseeeeeeeeseneeeeeeseeeeeeneeeneeeeeeeseees 2 34 2 7 1 Accessing the Station Setup Guten 2 34 Dm 22
34. Rate for FlIOWMeteYS cc seeeeeeeeeeneeeeeeeneeeeeeeuseseeeeneneeseeeeeeesesneneeees 4 1 4 1 1 Volumetric Flow Rate at Flowing Conditions Qy Bbls hr ceeceeeteeeeteeeeeeeee 4 1 4 1 2 Volumetric Flow Rate at Base Conditions Qy Bblsibr 4 1 4 1 3 Mass Flow Rate Qm Klbshr 4 1 4 1 4 Nomenclature A 4 2 Correction Factors for Liquid FIOW 1ccccesseeeceeeeeeeeeeeeeeeeeeeeeeeeeeseseeeeeeeseneeneeeees 4 3 4 2 1 Meter Factor in Use Mp oo ccccccccccccccccccceceeceeeeeeeeeeeceeeeeeecececacesecaeaeasenasenenenanenenens 4 3 4 2 2 Volume Correction Factor Met 4 4 4 2 3 Correction Factor for Pressure on Liquid Ce 4 5 4 2 4 Correction Factor for Sediment and Water Content Cog scccccsceesessseceseeeeees 4 5 Densities and Other Properties Of Liquids ccccseseeeeeeeeeeeeeseeeeeeeeseneeneeeees 4 6 4 3 1 Flowing Density o for Crude Oil and Refined Products 4 6 4 3 2 Density and Relative Density Specific Gravity Calculated from Live Digital Densitometer Output Frequency ssssssssersseernsetnresttnnnnttnnnstntnnnnttn annt rn annn nn nnne en nnan 4 7 Recalculation of Batch Ticket sicissisnicidcsscicnaneewnssinnncienisedndsianinninndandeninennnnsanen 4 11 4 4 1 Recalculated Gross Standard Volume GSVrecaic DS 4 11 4 4 2 Recalculated Net Standard Volume ccccccccceceeeceeneeeeeeeeceaaeeeeneeseeeesaeeesaeeeeeees 4 11 4 4 3 Factored Gross Volume FGV
35. SIT 22 26 74 06 07 Volume 3c Configuration and Advanced Operation 2 Flow Computer Configuration seccssesriccesicicsnacsassesccscnsssacsnscencnnacdsnesessssnanaauanasesnsanan 2 1 CRT E dE 2 1 2 2 Configuring with the Keypad in Program MOde cccesssecccessseceeeeseeeeeneneenees 2 1 2 2 1 Entering the Program Mode ccccccceeeeeseeceeeeeeeaeeeeeeeseeeeecaeeesaaeseeneeseeeeesaeeneneeee 2 1 ER Gh a nging NA TEE 2 1 2 2 3 Menu Selection Method 2 2 2 2 4 Random Access Method rieien eiiiai einai aiaa eaae EAEE E 2 2 22 5 PASSWOIMS EE 2 3 2 3 Getting Helpis eee oe Pe ee iaaa EE ARAU RREAN Eaa 2 4 2 4 Program inhibit Switch ssssnsssunnnnnnnnnnnnnnunnnnunnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn mnnn nnmn 2 4 2 5 Configuring the Physical Inputs Outputs snssssnnnnnnnnnnunnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 2 5 2 5 1 Miscellaneous Configuration Misc Setup Menu 2 5 2 5 2 Physical I O Points not Available for Confiouraiion 2 6 2 5 3 Password Maintenance Settings 0 cccccceceeeeeeeeeeeeneeceeeeeseaeeeseaeeseeeeeseaeessaeeseneeee 2 6 2 5 4 Entries Requiring a Valid Privileged Password 2 7 2 5 5 Mod le SONOS E 2 8 2 5 6 Meter Station Settings cccceccceeceeeeceeeeeeeeee cece eeeeaeeeeeeeseeeeesaeesseaeeseneeesiaeeesaeeneneeee 2 8 2 5 7 Meter RUN SENGS eciciucacceccnescesesevareseebeestineteasecaventacreestlandeestessceresiineevartarttentieaseees 2 11 25 8 Prover ne EE 2 13 25 9
36. Select Group Entry screen Program Mode press Setup Enter and a menu similar to the following will be displayed A kkk SETUP MENU PID Control Setup Prover Setup Product Setup Use the II up down arrow keys to move the cursor to Product Setup and press Enter to access the submenu 2 14 2 Product Settings Product 1 L1 Name Enter the name of the product up to 8 alphanumeric characters right justified L1 Table Select Enter the number that corresponds to the API or GPA table to use for the product O API 2540 Table 24A US units Table 54A metric units 1 API 2540 Table 24B US units Table 54B metric units 2 Table 24C US units Table 54C metric units 3 GPA TP16 US units TP16M metric units 4 Table 24 1952 Edition US units Table 54 1952 Edition metric units 5 E P Mixture 15 GPA TP27 23E 24E 28 API 11 1 2004 Crude Oil 29 API 11 1 2004 Refined Products 30 API 11 1 2004 Lubricating Oil 31 API 11 1 2004 Special Applications L2 API Relative Density Gravity Override This entry applies only to US units Revision 22 It will appear depending on which table is selected above Enter the API Gravity at reference conditions It is used to calculate the Volume Correction Factor VCF and the Pressure Correction Factor CPL The flow computer will accept any positive override value and use it as the API in calculations The override gravity can also be entere
37. Stack Enter Y to set up the flow computer to use a common product on all four meter runs Le to run the same product at the same time on all 4 meter runs Enter N to run different products at the same time on each meter run See Volume 2b on Batching Operations L1 Batch Preset Warning Enter the quantity of barrels for the Batch Preset Warning This entry displays only when Common Batch Stack is selected The Batch preset counters are activated when a non zero number is entered for batch size on the batch sequence stack see Volume 2b on Batching Operations The batch preset reached flag database point 1819 will be activated whenever the batch preset counter counts down to zero The batch warning flag database point 1818 will be activated when the batch preset counter is equal or less than this entry L1 Relative Density Gravity Density Rate of Change This entry displays only when a Station Density I O Point has been assigned It is used to detect product changes in the pipeline product interface Enter the Gravity or Density Rate of Change in relative density units per barrel US units or in Kgs m per cubic meter metric units for this limit The Relative Density Density Rate of Change Flag database point 1813 is activated if the flowing gravity density measured by the station densitometer exceeds this preset rate of change L1 Line Pack Delay This entry displays only when a Station Density I O Point has been
38. USER DISPLAY 1 M1 MSCF 1234 56 M1 MMSCF 123456789 M1 MFACT 1 0000 EI Omni 22 26 74 06 07 Volume 3c Configuration and Advanced Operation WE Chapter 4 Flow Equations and Algorithms for US Customary Units Revision 22 74 4 1 Liquid Flow Rate for Flowmeters The calculations performed for liquid helical turbine positive displacement and mass flowmeters are as follows 4 1 1 Volumetric Flow Rate at Flowing Conditions Qy Bbls hr Q Je lt 3600 m K Fnom 4 1 2 Volumetric Flow Rate at Base Conditions Qp Bbls hr G T Vor i Cp lt M Queen S Crew Daisy Des 4 1 3 Mass Flow Rate Qm KLbs hr Q Avm lt Pp M m 1000 Q m Ph 1000 8 22 744 06 07 Womni 4 1 Chapter 4 4 1 4 Qviy Qbiasv Qbinsv Qm fz KF nom MF VCF CPL Csaw 4 2 Flow Equations and Algorithms for US Customary Units Revision 22 74 Nomenclature gross indicated volumetric flow rate at flowing conditions in barrels per hour Bbls hr gross standard volumetric flow rate at base conditions in barrels per hour Bbls hr net standard volumetric flow rate at base conditions in barrels per hour Bbls hr mass flow rate at flowing conditions for gas turbine flowmeters in thousands of pounds mass per hour Klbm hr total number of pulses emitted from the flowmeter pulse train per second nominal K factor in pulses per barrel fHz Bbl supplied
39. Volume 5 and in OmniCom Help Method 3 is described here 2 2 Configuring with the Keypad in Program Mode 2 2 1 Entering the Program Mode INFO Key presses are While in the Display Mode press the Prog key The front panel Program LED denoted in bold face above the key will glow green and the following selection menu will be displayed on the first three lines of the LCD display between brackets e g the enter key appears in this manual as Enter Press Keys to Select Group Entr or The 4 line of the display is p Y gt used to show the user key presses Press Prog to Exit 2 2 2 Changing Data Data can be accessed using a sequential list of menu prompts or in a random access manner by going directly to a specific group of entries 22 26 74 06 07 Omni 2 1 Chapter 2 User Programmable Functions INFO Characters in refer to key presses TIP It is best to use the menu selection method when programming an application for the first time as every possible option and variable will be prompted Once a computer is in operation and you become familiar with the application you can decide to use the faster Random Access Method described on the facing page While in the Program Mode program LED on press Setup Enter A menu similar to the following will be displayed The 4 line of the display is used to show the user key presses 2 2 3 Menu Selection Method kkk
40. Y N Omni 22 26 74 06 07 Volume 3c INFO The first menu Misc Configuration should always be completed first as these entries specify the number and type of input and output devices connected to the flow computer i e the menus following the Misc Configuration menu do not ask for configuration data unless a transducer has been defined Flow Computer Configuration via the Menu Selection Method It is best to use this method when programming an application for the first time as every possible option and variable will be prompted Once a computer is in operation and you become familiar with the application you can decide to use the faster Random Access Method described below Once you have finished entering data in a setup submenu press the Prog key to return to the Select Group Entry screen Proceed as described in this manual for each setup option Product Setup via the Random Access Method Setup entries require that you be in the Program Mode In the Display Mode press the Prog key The Program LED will glow green and the Select Group Entry screen will appear Then press Product Enter or Product n Enter n Product 1 through 8 Use WN V keys to scroll 22 26 74 e 06 07 Configuration and Advanced Operation 2 14 Configuring Products 2 14 1 Accessing the Product Setup Submenu Applying the Menu Selection Method see sidebar in the
41. above which the Flow High Alarm database point 1n22 activates The High High Alarm database point 1n23 activates when the flow rate rises 5 above this limit L1 Gross Flow Rate at Full Scale Enter the gross flow rate at full scale for each meter run Sixteen bit integer variables representing meter run gross and net flow rate are included in the database at 3n42 and 3n40 respectively These variables are scaled using this entry and stored as percentage of full scale with a resolution of 0 1 i e 0 to 1000 0 to 100 0 L1 Mass Flow Rate at Full Scale Enter the mass flow rate at full scale for each meter run A 16 bit integer variable representing meter run mass flow rate is included in the database at 3n44 This variable is scaled using this entry and stored as percentage of full scale with a resolution of 0 1 i e 0 to 1000 0 to 100 0 L1 Active Frequency Threshold Enter the Active Frequency Threshold for each meter run Flow meter pulse frequencies equal or greater than this threshold will cause the Meter Active Flag 1n05 to be set By using any Boolean statement you can use this flag bit to enable and disable totalizing by controlling the Disable Meter Run Totalizer Flags Modbus database points 1736 1737 1738 amp 1739 Example 1030 1736 1105 gt Turn off Meter 1 flow if not greater than Active Frequency 2 37 Ei Womni Chapter 2 INFO Characters in Y refer to password levels Charact
42. and outlet temperature and pressure sensors Both up stream and downstream water draw volume inputs are available Plenum chamber pressure on a Brooks prover is also input as an analog and controlled by the computer Master meter proving is also featured Provings can be triggered on change of flow rate versus last known prove for each meter or on the amount of flow which has occurred since the last prove Proves can also be triggered by a meter being shut in for more than a specified amount of time 1 13 Retroactive Meter Factors and Override Gravity Meter factors and override product gravity can be applied retroactively for a selectable number of barrels at any time during a batch Meter factors determined by a prove can be automatically implemented from that point or retroactively to the beginning of the batch 1 14 Retroactive Density Correction Factor Density correction factors can be applied retroactively for a selectable number of barrels at any time during a batch Chapter 1 Overview of Firmware Revision 22 74 26 74 1 15 Meter Factor Linearizing Curves Variations in flowmeter performance due to viscosity and flow rate are corrected by the use of twelve point meter factor versus flow rate curves Curves are provided for each meter measuring each product 1 16 PID Control Functions Four independent control loops are provided for control of a primary variable with either high or low override control by a secondary variabl
43. as efficient as the ASCII protocol Serial Ports 3 and 4 have additional protocol options Modicon Compatible OmniCom will not operate if downloading configuration with this entry set to Y 22 26 74 e 06 07 Configuration and Advanced Operation 2 5 16 Serial Input Output Settings Enter 1 2 3 4 5 or 6 at Serial I O n of the Misc Setup menu to open the following entries L1 Baud Rate Computer Default 9600 L1 Number of Stop Bits Computer Default 1 L1 Number of Data Bits Computer Default 8 L1 Parity Bit Even Odd None Computer Default N L1 Transmit Carrier Key Delay Computer Default 0 Enter one of the following options 0 O msec delay 2 100 msec delay 1 50 msec delay 3 150 msec delay You must enter 0 for Transmitter Carrier Key Delay for any port that will be used with a shared printer L1 Serial Port Type Computer Port 1 Default 0 Printer This entry corresponds to Serial Port 1 only Enter one of the following options 0 Printer 1 Modbus RTU L1 Modbus Protocol Type Computer Default 2 This entry does not apply to Serial Port 1 Enter the type of protocol to be used on this port 0 Modbus RTU 1 Modbus ASCII 2 Modbus RTU modem Serial Port 4 has the following additional options 3 Allen Bradley Full Duplex 4 Allen Bradley Half Duplex Mixed protocols are not allowed on a communication link All dev
44. below which the Low Alarm activates The low low alarm activates when the auxiliary Input signal falls 5 below this value High Alarm Limits Enter the auxiliary input signal value above which the High Alarm activates The high high alarm will activate when the auxiliary Input signal rises 5 above this value L2 Override Values Enter the value in engineering units which will be substituted for the transducer value depending on the override code selected An displayed along side of the value indicates that the override value is substituted L2 Override Codes Enter the Override Code which represents the strategy used regarding each auxiliary input override value 0 Never use override value Always use override value 2 On transmitter failure use override value 3 On transmitter failure use last hour s average L1 at 4mA Enter the value in engineering units that produces a transducer output of 4mA or 1volt or the lower range limit LRV of Honeywell Smart Transmitters L1 at 20mA Enter the value in engineering units that produces a transducer output of 20mA or 5 Volts or upper range limit URV of Honeywell Smart Transmitters L1 Damping Code This entry only applies to Honeywell digital transmitters connected to an H type combo module The process variable i e temperature pressure is filtered by the transmitter before being sent to the flow computer The time constant used
45. by Solartron E Omni 22 74 07 07 Volume 3c 22 74 e 06 07 4 4 Configuration and Advanced Operation Recalculation of Batch Ticket The actual values of Alen and S amp W that correspond to a batch are obtained after the batch has ended The option to recalculate the batch ticket adjusts the batch quantities to actual results when the new actual values of Alen and S amp W are entered The calculations performed are Recalculated Gross Standard Volume Recalculated Net Standard Volume Factored Gross Volume Net Weight Delivered 4 4 1 Recalculated Gross Standard Volume GSVpecaic Bbls GSVrecalc BGF x Ver x CPL x Me Where GSVRecalc recalculated gross standard volume in barrels Bbls BGF batch gross volume Ver recalculated volume correction factor correction for temperature on liquid ASTM D1250 using batch average temperature and entered actual APlgo see 5 2 2 this chapter CPL recalculated correction factor for pressure on liquid using batch average pressure and entered actual Alen see 5 2 3 this chapter Mr average meter factor see 5 2 1 this chapter 4 4 2 Recalculated Net Standard Volume Recalculated Net Standard Volume in US Customary Units NSV Bbls NSVRecalc GSVRecalc X Csawa Where NSVRecalc recalculated net standard volume at 60 F and 0 PSlg in barrels Bbls GSVRecalc recalculated gross standard volume in barrels Bbls Csaw
46. factors K Factors and Density Correction Factors only PL Level 2 Enter the Level 2 password which is required for operator type entries such as gravity overrides and meter factors PL Serial Port 1 Password Enter the Serial Port password All data in the Modbus database except passwords can be read via the serial ports These passwords allow writes to the Modbus database Password protection can be disabled by entering a blank field as a password PL Lockout Switch Active Serial Port 1 Enter N for the lockout switch to be inactive for this serial port Enter Y for the lockout switch to be active for this serial port PL Serial Port 2 Password Enter the Serial Port 2 Password PL Lockout Switch Active Serial Port 2 PL Serial Port 3 Password PL Lockout Switch Active Serial Port 3 PL Serial Port 4 Password PL Lockout Switch Active Serial Port 4 22 26 74 e 06 07 l Omni Volume 3c 22 26 74 e 06 07 Configuration and Advanced Operation PL Serial Port 5 Password PL Lockout Switch Active Serial Port 5 PL Serial Port 6 Password PL Lockout Switch Active Serial Port 6 2 5 4 Entries Requiring a Valid Privileged Password The following entries display only when a Valid Privileged Password is entered PL Model Number 0 3000 1 6000 This entry is used by the OmniCom configuration software to determine the maximum UO capability of the computer
47. in the Program Mode In the Display Mode press the Prog key The Program LED will glow green and the Select Group Entry screen will appear Then press Meter n Enter n Meter Run 1 2 3 or 4 Use WN V keys to scroll Alternate Access to Meter Run Settings from Meter Station Setup After entering the Meter Station Settings without exiting press the W key and you will scroll down through each Meter Run setup entry 22 26 74 e 06 07 Configuration and Advanced Operation 2 8 Configuring Meter Runs 2 8 1 Accessing the Meter Run Setup Submenu Applying the Menu Selection Method see sidebar in the Select Group Entry screen Program Mode press Setup Enter and a menu similar to the following will be displayed kkk kkk SETUP MENU Time Date Setup Station Setup Meter Run Setup Use the Tal up down arrow keys to move the cursor to Meter Run Setup and press Enter to access the submenu 2 8 2 Meter Run Settings Meter 1 Meter 2 Meter 3 Meter 4 L1 Meter ID Enter the ID of the flowmeter up to 8 alphanumeric characters for each meter run This ID usually appears on reports Flow Low Alarm Limit Enter the flow rate for each meter run below which the Flow Low Alarm database point 1n21 activates The Low Low Alarm database point 1n20 activates when the flow rate falls 5 below this limit Flow High Alarm Limit Enter the flow rate for each meter run
48. list of Modbus database addresses and index numbers is included SE in Volume 4 of the OMNI Any pulse signal can be latched by using a small program similar to the User Manual following a BOOLEAN POINT 10xx 026 is set by 1834 and 25 1834 amp 1026 cleared by 1835 26 1835 amp 1025 27 22 26 74 06 07 Omni 3 9 Chapter 3 3 3 TIP The order of precedence is ABSOLUTE POWER MULTIPLY amp DIVIDE ADD amp SUBTRACT Where operators have the same precedence the order is left to right TIP RH Right Hand Variable LH Left Hand Variable 3 10 User Programmable Functions User Programmable Variables and Statements There are 64 user programmable floating point variables within the flow computer numbered 7025 through 7088 The value stored in each of these variables depends on an associated equation or statement These statements are evaluated every 500 msec and the resultant variable values can be displayed on the LCD display printed on a report output to a D A output or accessed via one of the communication ports Typical uses for the variables and statements include providing measurement units conversions special averaging functions limit checking and comparisons 3 3 1 Variable Statements and Mathematical Operators Allowed Each statement can contain up to 3 variables or constants The following symbols are used to represent the functions Operator Symbol Desc
49. manufacturers are based on SI or metric units You must ensure that the constants entered are based on Kom C and kPa Contact the densitometer manufacturer or OMNI if you require assistance Note Do must be expressed in kilograms per cubic meter Kg m 26 74 e 06 07 Configuration and Advanced Operation 5 3 3 Density and Relative Density Specific Gravity Calculated from Live Digital Densitometer Output Frequency The calculations expressed in this section are performed by the OMNI to determine the density from frequency signals received from the following third party densitometers and gravitometers Sarasota Peek 6 UGC 6 Solartron Sarasota Density Kgs m Sarasota density is calculated using the frequency signal produced by a Sarasota densitometer and applying temperature and pressure corrections as shown below SC t t d d Where De corrected density DcF Density correction factor Do calibration constant in mass volume t densitometer oscillation period in microseconds usec to calibration constant in microseconds to Tcoet X Tf Tcal Poet x Pf Peal to where Tf flowing temperature in C Tcoef temperature coefficient in usec C Dr flowing pressure in kPag Pcoef pressure coefficient in usec kPag Peal calibration pressure in kPag K spool calibration constant Ei a Omni 5 7 Chapter 5 Density and Relative Density
50. meter runs what types of transducers are to be used and to which physical I O points they are connected 2 5 1 Miscellaneous Configuration Misc Setup Menu The physical I O configuration of the flow computer is changed by entering the Misc Setup menu while the Select Group Entry screen is displayed see 2 2 1 Entering the Program Mode Press Keys to Select Group Entry or Press Prog to Exit Setup Press Setup then Enter and the following selection menu will be displayed SETUP MENU Misc Configuration _ Time Date Setup Station Setup The cursor automatically appears at the Misc Configuration option Press Enter and the following selection menu will be displayed Misc Setup Password Maint Y Check Modules Y Config Station Y Config Meter n Config Prove Y Config PID n Config D A Out n Front Pnl Counters Program Booleans Program Variables User Display n Config Digital n Serial I 0 n Peer Peer Comm Y Custom Packet n Archive File n PLC Group n a Omni 2 5 Chapter 2 User Programmable Functions 2 5 2 Physical UO Points not Available for Configuration Configuration parameter groups are only prompted as needed Meter runs and transducers which are not assigned to a physical I O point will not be available for configuration In these cases the following message will be displayed Varia
51. number between 0 255 will be accepted Set this to 0 if your printer supports hardware handshaking and you have connected pin 20 of the printer connector to terminal 6 of the flow computer see Chapter 3 L1 Use Default Snapshot Report Y Entering Y instructs the flow computer to use the default report Enter N if you have downloaded your own custom report t format L1 Use Default Batch Report Y L1 Use Default Daily Report Y L1 Use Default Prove Report Y L1 Condensed Print Mode Conirol String Certain default report templates exceed 80 columns when the computer is configured for 4 meter runs and a station Enter the hexadecimal character string which will put the printer into the condensed print mode Data must be in sets of 2 characters i e 05 not 5 A maximum of 5 control characters are allowed L1 Cancel Condensed Print Mode Control String Uncondensed Print Mode Enter the hexadecimal character string which when sent to the printer will cancel the condensed print mode Data must be in sets of 2 characters i e 05 not 5 A maximum of 5 control characters are allowed L1 Company Name Two lines of the display allow entry of the Company Name On each line enter a maximum of 19 characters and press Enter Both lines are concatenated and appear on all reports L1 Location Two lines of the display allow entry of the station location Name On each line enter a maximum of 19 characters and press En
52. outlet pressure sensor readings are averaged to determine the actual prover pressure To use the meter run pressure enter 0 for both inlet and outlet If there is only one pressure sensor enter 0 for outlet or enter the same number for both prover inlet and outlet PL Prover Pressure Transducer Tag Enter the 8 character tag name used to identify this pressure transducer on the LCD display PL Prover Plenum Pressure I O Point Number Applies only when a Brooks s compact prover is specified Enter the I O point number used to input the compact prover plenum pressure sensor input PL Prover Plenum Pressure Tag Enter the 8 character tag name used to identify this plenum pressure transducer on the LCD display Ei Womni 2 13 Chapter 2 Proportional Integral Derivative PID For practical reasons we refer to PID Control Loops in this manual However your flow computer actually performs the Proportional Integral Pl function and does not apply the derivative term The addition of the derivative term would greatly complicate tuning of the control loop and besides is not normally applicable to the types of flow and pressure control used in pipelines Valid Assignments Any 32 bit integer or floating point variable within the database can be assigned to be the primary or secondary controlled variable see Volume 4 for a complete listing of database addresses and index numbers 2 14 User Program
53. require that you be in the Program Mode In the Display Mode press the Prog key The Program LED will glow green and the Select Group Entry screen will appear Then press Prove Temp Enter or Temp Prove Enter Use WN V keys to scroll 2 42 User Programmable Functions 2 9 4 Prover Temperature Settings Inlet Outlet Low Alarm Limit Enter the temperature below which the prover low alarm activates Transducer values approximately 5 below this entry activate the transducer fail low alarm High Alarm Limit Enter the temperature above which the prover high alarm activates Transducer values approximately 10 above this entry activate the transducer fail high alarm L2 Override Enter the temperature value that is substituted for the live transducer value depending on the override code An displayed along side of the value indicates that the override value is substituted L2 Override Code Enter the Override Code strategy 0 Never use override code 1 Always use override code 2 Use override code on transmitter failure 3 On transmitter failures use last hour s average L1 4mA Enter the temperature engineering units that the transducer outputs at 4mA or 1volt or lower range limit LRV of Honeywell Smart Transmitters L1 20mA Enter the temperature engineering units that the transducer outputs at 20mA or 5volts or upper range limit URV of Honeywell Smart Transmitt
54. same precedence statements are evaluated PL 44 left to right PL 45 E g The value of floating point variable 7035 is PL 46 defined as 7035 7027 amp 0 5 7026 PL 47 The power operator is i evaluated first the value of PL 48 Point 7035 is set equal to PL 49 the square root of the number contained in Point PL 50 7027 and the result is multiplied by the number PL 51 stored in variable 7026 Note that statements can PL 52 contain the results of other statements See Omnicom PL 53 Help for more information by pressing F1 on your PC PL 54 keyboard in the Configure Variable Statement menu PL 55 Dm 22 26 74 06 07 Y Omni 2 19 Chapter 2 User Programmable Functions Prog Variable 70xx Equation or Statement Comment or Remark TIP Use the blank lines PL 56 provided next to each configuration option to write PL 57 down the corresponding settings you enter in the PL 58 flow computer PL 59 Note See Volume 4 for PL JS detailed list of Booleans and PL 61 Status Commands PL 62 Valid Numeric Variables PL 63 Pee PL ou 5000 8989 including PL 65 eee PL 66 Boolean variables have the value of 1 0 if they are True PL 67 and 0 0 if they are False PL 68 PL 69 PL 70 PL 71 PL 72 PL 73 PL 74 PL 75 PL 76 PL 77 PL 78 PL 79 PL 80 PL 81 PL 82 PL 83 PL 84 PL 85
55. sound effects in Kgs m Dip temperature and pressure compensated density in Kgs m ei Kj Users wishing to implement the above term are advised to contact Solartron to obtain a reworked calibration sheet containing the coefficients K and Kr Typically K 1 1 and Kj 500 If you do not want to implement the above term enter 0 0 for Kr calibration constants supplied by Solartron Ei 5 10 Omni 26 744 06 07 Volume 3c 26 74 e 06 07 Configuration and Advanced Operation 5 4 Liquid Flow Rate for Provers The calculations performed for unidirectional bi directional and small volume compact provers are as follows 5 4 1 Prove Gross Flow Rate at Flowing Conditions m hr Gross Flow Rate for Uni and Bi directional Provers PQ ye PQ ie 3600 Fnom Gross Flow Rate for Small Volume Compact Provers PQy syp lt 3600 _ PV T vol PQ SVP 5 4 2 Nomenclature PQvu p prove gross flow rate at flowing conditions for uni and bi directional provers in cubic meters per hour m hr PQvisvp prove gross flow rate at flowing conditions for small volume compact provers in cubic meters per hour m hr PVp base prover volume at 15 C and equilibrium pressure in cubic meters Im PfHz total number of flow pulses per second during the prove KF nom nominal K factor in pulses per barrel fHz m supplied by the flow transmitter manufacturer Tdyo timer
56. the text in bold face characters and Use Up Down Arrows To Adjust Contrast Left Right Arrows To Adjust Backlight mono spaced font The flow computer display is actually 4 lines by 20 characters Screens that are more than 4 lines must be scrolled to reveal the text shown in the manual 22 26 74 e 06 07 Volume 3c Configuration and Advanced Operation CONVENTION USED DESCRIPTION Headin SE oadings Sequential heading numbering is used to categorize Example topics within each volume of the User Manual The highest heading level is a chapter which is divided 2 Chapter Heading into sections which are likewise subdivided into subsections Among other benefits this facilitates 2 3 Section Heading f ee information organization and cross referencing 2 3 1 Subsection Heading Figure Captions Figure captions are numbered in sequence as they Example appear in each chapter The first number identifies the chapter followed by the sequence number and Fig 2 3 Figure No 3of title of the illustration Chapter 2 Page Numbers Page numbering restarts at the beginning of every chapter and technical bulletin Page numbers are Example preceded by the chapter number followed by a 2 8 hyphen Technical bulletins only indicate the page number of that bulletin Page numbers are located on the outside margin in the footer of each page Application Revision and The contents of Volume 1 and Volume 5 are Effective
57. to delay or stretch a control output The delay is measured using 100msec ticks i e 10 1 second Assigning as Status or Command Inputs Switches etc can be used to trigger events within the flow computer such as end a batch or start a prove sequence see the facing page for more details 1700 Dummy Boolean Assign all physical I O points which will be used only in Boolean statements for sequencing or control to 1700 This sets up the points as an input only Note See Volume 4 for valid assignments 2 24 Digital UO 13 Remark Digital UO 14 Remark Digital UO 15 Remark Digital O 16 Remark Digital UO 17 Remark Digital UO 18 Remark Digital I O 19 Remark Digital UO 20 Remark Digital UO 21 Remark Digital I O 22 Remark Digital I O 23 Remark Digital UO 24 Remark User Programmable Functions Assign Pulse Width Pulse Unit or Delay On Delay Off 22 26 74 e 06 07 Volume 3c Baud Rates Available 300 600 1200 2400 4800 9600 19200 38400 57600 Data Bits 7 or 8 7 for ASCII Modbus 8 for RTU Modbus Stop Bits 0 1 or 2 Parity Bit Odd Even None Transmitter Carrier Key Delay Delays are approximate only O msec 1 50msec 2 100msec 3 150msec Modbus Type Select the protocol type which matches the Modbus master device If the master can support either ASCII or RTU choose RTU protocol as it is approximately twice
58. using archive records and files 1 27 OmniCom Windows Version Software Communications Package OmniCom software is provided with each flow computer and allows the user to configure the computer on line or off line using a personal computer 1 28 OmniView Windows Version Interface Software Package A Man Machine Interface package for the OMNI Flow Computer is also available as an option Ei Womni 1 5 Chapter 1 Overview of Firmware Revision 22 74 26 74 1 29 Ethernet Module An Ethernet module 68 6209 has been added that will allow users to send reports thru the Ethernet module or communications via a hub See Technical Bulletin TB 020101 for more information Ei 1 6 Omni 22 26 74 06 07 Volume 3c Configuration and Advanced Operation aa Chapter 2 Flow Computer Configuration 2 1 Introduction Configuration data is stored in the computer s battery backed up RAM memory which will retain its data for at least 1 to 2 months with no power applied Configuration data can be entered using one of three methods 1 Configure off line using the OmniCom PC configuration program and then uploading all data at once 2 Configure on line using the OmniCom PC configuration program which uploads each change as it is entered 3 Enter configuration data via the front panel keypad using the Program Mode Methods 1 and 2 require an IBM compatible PC running the OmniCom Configuration Software and are described in
59. 25 ON whenever Boolean 1005 is OFF OR whenever 1006 is ON enter 1005 1006 note the use of the to indicate the NOT function Boolean Point 10XX 25 1005 1006 Boolean 1025 could then be used in the statement following which defines Boolean 1026 For example by including Boolean 1205 which indicates that Meter 2 is active and flowing see following page Boolean 1026 will be ON whenever Meier 2 is active and flowing AND 1005 is NOT ON OR 1006 is ON Boolean Point 10xx 25 1005 1006 Rmk 26 120581025 Use the Up Down arrow keys to scroll though all 64 programmable Boolean points 22 26 74 e 06 07 Y Omni Volume 3c INFO Use the Exclusive OR function to compare 2 points The result of an Exclusive OR of 2 points is true only if both points are different states INFO Booleans 1025 1026 and 1027 are only used as an example here Any unused programmable Booleans can be used for this function True if Meter 1 fails True if Meter 2 fails Request snapshot if either meter fails Notes Boolean Point 1025 is true Meter 1 failed whenever Meter 1 Active Point 1105 differs from Flow Detected Flow Switch 1 Point 02 Boolean Point 1026 is true Meter 2 failed whenever Meter 2 Active Point 1205 differs from Flow Detected Flow Switch 2 Point 03 Boolean Point 1027 is true Meter 1 OR 2 failed whenever point 1025 OR 0126 are true The
60. 9 1002 27 To complete the example we assign Digital I O Point 02 Point 1002 to 1025 and select a delay on of 3000 to provide a 5 minute delay on activate 3000 ticks 3000 x 100 msec 300 seconds Set the delay off to 0 Omni 22 26 74 06 07 Volume 3c 3 4 INFO The computer checks for the user display key presses first so you may override an existing display screen by selecting the same key press sequence 22 26 74 e 06 07 Configuration and Advanced Operation User Configurable Display Screens The user can specify up to eight display screen setups Each display screen can be programmed to show four variables each with a descriptive tag Any variable within the data base can be selected for display Steps needed to configure a display screen are 1 Specify a sequence of up to four key presses that will be used to recall the display Key presses are identified by the A through Z character on each key For each variable four maximum 2 Specify the eight character string to be used to identify the variable Any valid characters on the keypad can be used 3 Specify the database index or point number 4 Specify the display resolution of the variable i e how many digits to the right of the decimal point Should the number exceed the display capacity the decimal will be automatically shifted right to counter the overflow The computer will shift to scientific display mode if the in
61. 9 9 L1 Mass Flow Rate at Full Scale Enter the mass flow rate at full scale for the meter station A 16 bit integer variable representing station mass flow rate is included in the database at 3806 This variable is scaled using this entry and stored as percentage of full scale with a resolution of 0 1 i e 0 to 1000 0 to 100 0 Flag 3 Flag 1 Flag 2 L1 Run Switching Threshold Low Enter the flow rate Low Threshold value which resets each Station Run Switching Flag when the station gross flow rate falls below this limit see sidebar L1 Run Switching Threshold High Enter the flow rate High Threshold value which sets each Station Run Switching Flag when the station gross flow rate exceeds this limit see sidebar 22 26 74 e 06 07 Omni Volume 3c INFO Characters in refer to password levels Characters in refer to key presses TIP Use the blank lines provided next to each configuration option to write down the corresponding settings you entered in the flow computer Some of these entries may not appear on the display or in OmniCom Depending on the various configuration settings of your specific metering system only those configuration options which are applicable will be displayed INFO See the previous chapter for a description of batching features of the OMNI flow computer 22 26 74 e 06 07 Configuration and Advanced Operation L1 Use Common Batch
62. A Flow Rate 7 L1A Meter Factor 8 L1A Flow Rate 8 L1A Meter Factor 9 L1A Flow Rate 9 L1A Meter Factor 10 L1A Flow Rate 10 L1A Meter Factor 11 L1A Flow Rate 11 L1A Meter Factor 12 L1A Flow Rate 12 Meter 2 Meter 3 Omni Meter 4 2 63 Chapter 2 User Programmable Functions INFO The following data rounded to 4 digits is from GPA 2145 92 and TP16 Product S G kg m Ethane 3562 355 85 Propane 5070 506 90 HD5 5010 500 50 5050 504 50 5100 509 50 152285 522 28 5629 562 34 5650 564 44 5840 583 42 5850 584 42 Iso Pentane 6247 624 08 n Pentane 6311 630 48 n Hexane 6638 663 14 Natural Gasolines 6650 6882 7070 Propylene Iso Butane n Butane 664 34 687 52 706 30 n Heptane n Octane n Nonane 7219 721 19 n Decane 7342 733 48 Propylene figures are derived from API 11 3 3 2 INFO API 2540 Tables 23A or 23B US or 53A or 53B metric are also automatically used when applicable Tables 24A and 53A apply to Generalized Crude Oils SG range 1 076 6110 Dens range 1075 610 4 Tables 24B and 53B apply to Generalized Products SG range 1 076 6535 Dens range 1075 652 8 GPA TP16 and TP16M apply to LPG NGL Products SG range 637 495 on Version 20 and 636 4 494 5 on Version 24 of the OMNI These calculation methods use API Chapter 11 2 1 or 11 2 2 and 11 2 1M or 11 2 2M to calculate the pressure correction factor CPL
63. Boolean 1026 is true when Boolean 1025 is NOT true PL 83 OR Point 1105 is true Using the operator the PL 84 result of a statement can PL 85 initiate a command g E g 1027 1719 1026 PL 86 Request a Snapshot Report when Boolean 1026 PL 87 is true PL 88 2 18 YY Omni 22 26 74 06 07 Volume 3c Configuration and Advanced Operation 2 5 13 Programmable Variable Statements Programmable Variables Enter Y at Program Variables of the Misc Setup menu to open the These 64 variable following entries statements are evaluated every 500 msec starting at the statement that Prog Variable 70xx Equation or Statement Comment or Remark determines the value of Points 7025 through 7088 PL 25 Each statement can contain up to 3 variables or PL 26 constants Variables can be optionally preceded by the PL 27 symbol denoting the ABSOLUTE value of the PL 28 variable is to be used Constants are identified by PL 29 placing a 8 symbol ahead of the number These and PL 30 other operators are PL 31 Operator Symbol ABSOLUTE PL 32 CONSTANT POWER PL 33 MULTIPLY PL 34 DIVIDE ADD PL 35 SUBTRACT PL 36 EQUAL IF PL 37 GOTO MOVE PL 38 COMPARE PL 39 INDIRECT The order of precedence is PL 40 1 ABSOLUTE PL 41 2 POWER 3 MULTIPLY DIVIDE PL 42 4 ADD SUBTRACT PL 43 In cases where operators have the
64. Boolean Command Bit 1719 is set when Boolean Point 1027 is true 22 26 74 e 06 07 Configuration and Advanced Operation Remember that the Boolean statements are evaluated in order starting from 1025 proceeding to 1088 For maximum speed always ensure that statements used in other statements are evaluated ahead of time by placing them in the correct order Example 1 Meter Failure Alarm for Two Meter Run Application Object Using signals from flow sensing switches inserted into the pipeline provide an alarm output which activates whenever the signals from the flow switches and flow meter signals differ also provide a snapshot report by setting command point 1719 How the hardware is configured Physical I O points 02 and 03 are setup as inputs by assigning them to 1700 see the Command and Status Booleans on a later page They are connected to flow sensing switches on meter runs 1 and 2 respectively The switches activate with flow Physical I O point 04 is connected to a meter fail alarm bell The output is assigned to Programmable Boolean 1027 A delay ON of 5 seconds is selected to eliminate spurious alarms which would occur during startup and shutdown A delay OFF of 5 seconds is selected to ensure that the alarm bell remains on for at least 5 seconds The Booleans are programmed as follows BOOLEAN POINT 10xx 1105 1002 1205 1003 1719 1025 1026 0 a Omni 3 5 Chapter 3 User Programmable Functions
65. EE EE Enter the pressure below which the flowmeter low alarm activates Transducer values approximately 5 below this entry fail to low High Alarm Limit EE ess EE Enter the pressure above which the flowmeter high alarm activates Transducer values approximately 10 above this entry fail to high L2 Override Enter the pressure value that is substituted for the live transducer value depending on the override code An displayed along side of the value indicates that the override value is substituted L2 Override Code Enter the Override Code strategy 0 Never use override code 1 Always use override code 2 Use override code on transmitter failure 3 On transmitter failures use last hour s average L1 at 4mA ee a E E Enter the pressure engineering units that the transmitter outputs at 4mA or 1volt or lower range limit LRV of Honeywell Smart Transmitters L1 at 20mA Enter the pressure engineering units that the transmitter outputs at 20mA or 5volts or upper range limit URV of Honeywell Smart Transmitters 22 26 74 e 06 07 Volume 3c INFO Characters in refer to password levels TIP Use the blank lines provided next to each configuration option to write down the corresponding settings you entered in the flow computer Meter Density Pressure Setup via the Random Access Method To access these settings in the Program Mode press Density Press Enter INFO The Density
66. Enter 2 46 User Programmable Functions 2 10 4 Prover Pressure Settings Inlet Outlet Low Alarm Limit Enter the pressure below which the prover low alarm activates Transducer values approximately 5 below this entry activate the transducer fail low alarm High Alarm Limit Enter the pressure above which the prover high alarm activates Transducer values approximately 10 above this entry activate the transducer fail high alarm L2 Override Enter the pressure value that is substituted for the live transducer value depending on the override code An displayed along side of the value indicates that the override value is substituted L2 Override Code Enter the Override Code strategy 0 Never use override code 1 Always use override code 2 Use override code on transmitter failure 3 On transmitter failures use last hour s average L1 at 4mA Enter the pressure engineering units that the transducer outputs at 4mA or 1volt or lower range limit LRV of Honeywell Smart Transmitters L1 at 20mA Enter the pressure engineering units that the transducer outputs at 20mA or 5volts or upper range limit URV of Honeywell Smart Transmitters L1 Damping Code This entry only applies to Honeywell digital transmitters connected to an H Type combo module The process variable i e pressure is filtered by the transmitter before being sent to the flow computer The time constant used depends on this entry Fo
67. Enter the 8 character tag name used to identify this density temperature transducer on the LCD display PL Density Temperature Type Enter the Densitometer Temperature Transmitter Type 0 RTD probes that follow the DIN curve and a 0 0385 1 RTD probes that follow the American curve and a 0 0392 2 Honeywell smart transmitter connected to an H combo module or a transducer with a 4 20mA linear output PL Density Pressure I O Point Enter the I O point number used to input the signal applied to compensate for pressure effects at the densitometer for each meter run If the densitometer has no pressure sensor fitted enter the same I O point assignment as the meter run pressure sensor PL Density Pressure Tag Enter the 8 character tag name used to identify this density pressure transducer on the LCD display 22 26 74 e 06 07 Volume 3c INFO Characters in refer to password levels Characters in refer to key presses TIP Use the blank lines provided next to each configuration option to write down the corresponding settings you entered in the flow computer Some of these entries may not appear on the display or in OmniCom Depending on the various configuration settings of your specific metering system only those configuration options which are applicable will be displayed Configuring the Prover When an input and output transducer signal is available the computer uses the aver
68. H RIBBON CABLE TO FRONT PANEL ENABLE LOCK MEMORY BACKUP BATTERY _ PROGRAM LOCKOUT SWITCH Fig 2 1 Figure Showing Program Inhibit Switch SS Womni 22 26 74 e 06 07 Volume 3c Tip It is best to use the Menu Selection Method see 2 2 3 when programming an application for the first time as every possible option and variable will be prompted Once a computer is in operation and you become familiar with the application you can decide to use the faster Random Access Method see 2 2 4 INFO Characters in refer to key presses INFO The first menu Misc Configuration should always be completed first as these entries specify the number and type of input and output devices connected to the flow computer You are advised to complete all entries under this menu before proceeding Only transducers that have been assigned to physical I O points will be available for further configuration i e the menus following the Misc Configuration menu do not ask for or accept configuration data unless a transducer has been defined See 2 5 2 22 26 74 e 06 07 Configuration and Advanced Operation 2 5 Configuring the Physical Inputs Outputs The OMNI Flow Computer can accept many I O modules and be configured to match just about any combination of measurement transmitters Configuring the physical I O means setting up the number of
69. K ee wm settings of your specific Enter the size of the flowmeter up to 8 alphanumeric characters This entry usually appears metering system only those on the prove report configuration options which are applicable will be L1 Meter Serial Number SS Enter the serial number of the flowmeter up to 8 alphanumeric characters This entry usually appears on the prove report Enter the model number of the flowmeter up to 8 alphanumeric characters This entry usually appears on the prove report Meter Run Setup via the Random Access Method Setup entries require that you be in the Program Mode In the Display Mode press the Prog key The Program LED will glow green and the Select Group Entry screen will appear Then press Meter n Enter n Meter Run 1 2 3 or 4 Use WN V keys to scroll Dm 22 26 74 06 07 YY Omni 2 39 Chapter 2 INFO The first menu Misc Configuration should always be completed first as these entries specify the number and type of input and output devices connected to the flow computer i e the menus following the Misc Configuration menu do not ask for configuration data unless a transducer has been defined Flow Computer Configuration via the Menu Selection Method It is best to use this method when programming an application for the first time as every possible option and variable will be prompted Once a computer is in operation and you
70. Kv n Enter or Density Factor Meter n Enter L1 Kis Ne Meter Run 1 2 3 or L1 P L1 Kp L1 Kp2 L1 Kps 2 50 YY Omni 22 26 74 06 07 Volume 3c INFO Characters in refer to password levels TIP Use the blank lines provided next to each configuration option to write down the corresponding settings you entered in the flow computer Some of these entries may not appear on the display or in OmniCom Depending on the various configuration settings of your specific metering system only those configuration options which are applicable will be displayed Flow Computer Configuration via the Menu Selection Method It is best to use this method when programming an application for the first time as every possible option and variable will be prompted Once a computer is in operation and you become familiar with the application you can decide to use the faster Random Access Method described below Once you have finished entering data in a setup submenu press the Prog key to return to the Select Group Entry screen Proceed as described in this manual for each setup option PID Control Output Setup via the Random Access Method Setup entries require that you be in the Program Mode In the Display Mode press the Prog key The Program LED will glow green and the Select Group Entry screen will appear Then press Control n Enter n PID Cont
71. Note The A through Z keys are used simply to identify key presses The Alpha Shift key does not need to be used when recalling user displays 22 26 74 e 06 07 Configuration and Advanced Operation 2 5 14 User Display Settings Enter 1 through 8 for the selected user display at User Display n of the Misc Setup menu to open the following password Level 1 L1 entries User Display 1 Key Press Sequence C LJ Using the keys marked A through Z enter the sequence of key presses needed to recall the selected user display see the side bar for details A maximum of 4 keys are allowed User key press sequences take priority over any existing resident key press sequences 1 Variable Tag Enter an 8 character tag name used to identify the display variable on the LCD display 1 Variable Index Number Enter the database index number of the variable that you want to appear on the LCD display Each variable within the flow computer database is assigned an index number or address Any Boolean integer or floating point variable within the database can be displayed 1 Variable Decimal Point Position Enter the number of digits to the right of the decimal point for the variable Valid entries are 0 through 7 The computer will display each variable using the display resolution that you have selected except in cases where the number is too large or too small In either case the flow comp
72. PL 86 PL 87 PL 88 2 20 Omni 22 26 74 06 07 Volume 3c Valid Index Number Assignments Any 32 bit integer or floating point variable within the database can be assigned to be viewed via a user display see Volume 4 for a complete listing Valid Key Press Sequences You may select a sequence of up to 4 key presses to recall each display This does not count the Display Enter key press which must be used to signal the end of the sequence Each key is identified by the red A through Z character on each valid key Valid keys are listed below A also labeled Gross B also labeled Net C also labeled Mass D also labeled Energy E also labeled S G API F also labeled Control G also labeled Temp H also labeled Press I also labeled Density J also labeled D P K also labeled Orifice L also labeled Meter M also labeled Time N also labeled Counts O also labeled Factor P also labeled Preset Q also labeled Batch R also labeled Analysis S also labeled Print T also labeled Prove U also labeled Status V also labeled Alarms W also labeled Product X also labeled Setup Y also labeled Input Z also labeled Output The TVNVI lt Up Down Left Right arrow keys and the Prog Alpha Shift and Clear keys cannot be used in a key press sequence
73. PL Re configure Archive Enter Y to re configure archive records definition Enter N when finished PL Archive Run Y N Enter Y to start the archive running PL Delay Cycle 0 20 Enter a number between 0 20 as number of 500ms cycle delays to differentiate between simultaneous noise with A 0 and an A failure with Dual pulse fidelity Alarms PL Reset All Totalizers Y N Entering Y will reset all current meter totalizers to 0 0 Once this has been done the user will see another display All Totalizers now reset and the user can now select the totalizers resolution of digits 0 9 and 1 8 Next the user can select the decimal place resolution for the front panel by selecting the number of decimal places required for Gross Net and Mass The three electromechanical totalizers on the front of the computer cannot be zeroed PL Reset All RAM Y N Resetting all RAM will clear all configuration data calibration data and totalizers This means that all configuration data will have to be re entered PL Input Calibrate Default Entering a Y here will set all the analog input calibration constants used to scale zero and span settings to the default value This will require you to re calibrate all the inputs You can also do this on a channel by channel basis by entering the input channel number PL D A Calibrate Default Entering a Y here will set all the analog output calibration constants used to scale
74. Pp base prover pressure in kPag D internal prover tube diameter in mm E modulus of elasticity for prover tube t wall thickness of prover tube in mm correction factor for effects of temperature on liquid volume correction factor at the prover volume correction factor Vcr where the actual temperature Tq is replaced by the average temperature during the prove at the prover see 5 2 2 this chapter correction factor for effects of pressure on liquid at the prover correction factor for pressure on liquid Cp where the flowing pressure P is replaced by average pressure during the prove at the prover see 5 2 3 this chapter correction factor for effects of temperature on liquid volume correction factor at the flowmeter volume correction factor Vcr where the actual temperature Ta is replaced by the average temperature during the prove at the flowmeter see 5 2 2 this chapter correction factor for effects of pressure on liquid at the flowmeter correction factor for pressure on liquid Ce where the flowing pressure P is replaced by average pressure during the prove at the flowmeter see 5 2 3 this chapter Ei Womni 5 13 Chapter 5 Flow Equations and Algorithms for SI Metric Units Revision 26 74 Prove Meter Factor at Base Prove Flow Rate PMFpg PM PM zl MI Fic Poy Where Mr meter factor at base prove flow rate PMF prove meter factor MFecpa meter fa
75. Pressure sensor is used to compensate for pressure effects which effect the periodic time of oscillation of the densitometer It is also used when desired to calculate the density of the liquid at the densitometer to equilibrium pressure using API 2540 MPMS 11 2 1 or 11 2 2 Note Not Valid when a RTD Probe is specified 22 26 74 e 06 07 Configuration and Advanced Operation Station Meter 1 Meter 2 Meter 3 Meter 4 This entry only applies to Honeywell digital transmitters connected to an H Type combo module The process variable i e pressure is filtered by the transmitter before being sent to the flow computer The time constant used depends on this entry For Pressure Transmitters enter the selected Damping Code 0 0 seconds 5 2 seconds 1 0 16 seconds 6 4seconds 2 0 32 seconds 7 8 seconds 3 0 48 seconds 8 16 seconds 4 1 seconds 9 32 seconds 2 10 3 Station and Meter Run Density Pressure Settings Station Meter 1 Meter 2 Meter 3 Meter 4 Low Alarm Limit L Enter the pressure below which the densitometer low alarm activates Transducer values approximately 5 below this entry activate the transducer fail low alarm High Alarm Limit Enter the pressure above which the densitometer high alarm activates Transducer values approximately 10 above this entry activate the transducer fail high alarm L2 Override Enter the pressure value that is substituted for the live transducer val
76. Publication Date common to all application revisions and are denoted as All 74 Content of Volumes 2 3 and 4 are Examples application specific and are identified with the All 74 06 07 application number These identifiers are included on every page in the inside margin of the footer SE opposite the page number The publication effective 21 25 74 06 07 date of the manual follows the application 22 26 74 06 07 identification The date is expressed as month year 23 27 74 06 07 e g June 2007 is 06 07 Trademark References The following are trademarks of OMNI Flow Computers Inc o OMNI 3000 o OMNI 6000 o OmniCom Other brand product and company names that appear in this manual are trademarks of their respective owners Dm 22 26 74 06 07 Omni xiii OMNI 6000 OMNI 3000 User Manual For Your Information Important Xiv Copyright Information and Modifications Policy This manual is copyright protected All rights reserved No part of this manual may be used or reproduced in any form or stored in any database or retrieval system without prior written consent of OMNI Flow Computers Inc Sugarland Texas USA Making copies of any part of this manual for any purpose other than your own personal use is a violation of United States copyright laws and international treaty provisions OMNI Flow Computers Inc in conformance with its policy of product development and improvement may make any necessary ch
77. Values Determined from Densitometer and Gravitometer Frequency Signals The equations used to determine the density and relative density via density transducers are provided by the respective manufacturers Flow Equations and Algorithms for SI Metric Units Revision 26 74 UGC Density Kgs m UGC density is calculated using the frequency signal produced by a UGC densitometer and applying temperature and pressure corrections as shown below UNCORRECTED DENSITY D Ko Ky x t K x t Where D uncorrected density in Kgs m Ko Rue Calibration constants of density probe entered via the keypad K2 ll densitometer oscillation time period in microseconds usec CORRECTED DENSITY 2 De Der x lr D K D K x Tj i D Where De corrected density in Kgs m Det density correction factor D uncorrected density in Kgs m Kp pressure constants P flowing pressure in kPag Pc Calibration pressure in kPag Ki temperature constants T flowing temperature in C Tc Calibration temperature in C E Omni 26 74 06 07 Volume 3c Configuration and Advanced Operation Solartron Density Kgs m Densitometer Calibration Solartron density is calculated using the frequency signal produced by a Constants In many cases Solartron frequency densitometer and applying temperature and pressure the densitometer constants ueia by te corrections
78. Volume 3c Configuration and Advanced Operation Ss Volume 3 CONFIGURATION AND ADVANCED OPERATION Contents of Volume 3 FIQUFES f Volume EEN Vii About O r TE ix Contacting Our Corporate Headquarters cccccceseeceeeseneeeeeeeseeeeeeneeeneeseneseeeeeeneeneeeenes ix Getting User SUpPOMt 6 6520 ek teen eae eet EECHER eich aai aeiia aia ea aoa eebe ix About the Flow Computer Applications cccccesseeneeeeeseeeeeneeeeeeeeeeeeeneeeeneeeeeeeseneeneees x About the User Mantel iciiisiascascansiwercisannisnnserians sntaaiastenaswinciaieecaennenentecaiiannaadeetientiaeiiien X Ree ge Xx Manual Structure TEEN xi Volume 1 System Architecture and Installation 0 ccccccceeeeeeeceeeeeeeeeseeeeeeseaeeeeeeeeeeee xi Volume 2 Basic Operation xi Volume 3 Configuration and Advanced Operation xi Volume 4 Modbus Database Addresses and Index Number xii Volume 5 Technical Buileins xii Conventions Used in this Manual xii Trademark EE xiii Copyright Information and Modifications Policy cccccccceeeeeeeeceeeeeeeeeeeeeneeseeeeeseaeeseaeeeenees xiv Warranty Licenses and Product Registration eeeccesseseeeseeeeeeeeeeeeeeeneeeeeeeneenees xiv 22 26 74 06 07 Omni i 1 OMNI 6000 OMNI 3000 User Manual Contents of Volume 3 Overview of Firmware Revisions 22 74 26 74 ssssssuunnnnnnennnnnunnnnnnnnnnnnnnnnnnnn nenna 1 1 1 1 Number of Meter Runs Type of FlowmeterS
79. aaesseaeesecaeeesaeeseeeeeaes 2 46 2 10 5 Prover Density Pressure Getings 2 47 Configuring Meter Relative Density API Relative Density ccsssee 2 48 2 11 1 Accessing the Gravity Density Setup Gubmen eter eeeeaeeeeneeeeeeees 2 48 2 11 2 Meter Relative Density Density Settings 0 cceeeeceeceeeeeeeeeeeeeeeseeeeeeeaeeeeeeeeeaees 2 48 Configuring PID Control Outputs cceeeeeeeeeeeeeeseneeeeeeeeeeeeeeeeeeeeseeneeeeeeeeneeeees 2 51 2 12 1 Accessing the PID Control Setup Guten 2 51 2 12 2 PID Control Output Settings cece ceee cece ee cent eeeeeeeeeeeesaeeeeaaeeeeneeseeeesaeeeeeaeeseaees 2 51 Configuring NET 2 53 2 13 1 Accessing the Prover Setup Gubmen 2 53 2 1 3 2 Prover ne E 2 53 Configuring PIOGUCUS icc iicnceccsscesetiecrie eceiediceneenteeee nate 2 57 2 14 1 Accessing the Product Setup Submenu sssesssseeseesisesisssietesrserinsissrensrresrnnrnn 2 57 2 14 2 PrOGUCESOMINGS EE 2 57 un e UR TE 2 67 2 15215 Batch PreSet S Ctu pisccasecscsdcevadeasdeccecvsuncecdase ce ote Wises dee Eege ee Deeg 2 67 Configuring Miscellaneous Factors s sssussssussnunnnnunnnnnnnnnnnunnnnunnnnnnnnnnnnnnnnnnnnnnnn 2 68 2 16 1 Accessing the Factor Setup Submenu ecccceeeeeeeeeeeeeeeeaeeeeeeeseeeesaeeeeaeeennees 2 68 2 16 2 F ctor Settings sises neeaaeia ananira aaa aaiae aaaea Sec 2 68 Configuring Wl E 2 69 2 17 1 Accessing the Printer Setup Gubmen cent eeeaeeeeeeeceeeesaeeeeaeeeenees 2 69
80. acters in 11 This entry applies to unidirectional compact provers only except Brooks SVP see following refer to password levels setting Enter the squared coefficient of thermal expansion for any switch rod components i which may affect the water draw volume of the compact prover This Thermal Expansion Coefficient is used to calculate the CTSP factor for the compact prover Ta pee the plani Ines o For US Units Carbon Steel 0 0000124 Stainless Steel 0 0000177 provided next to each configuration option to write 6 For Metric Units Carbon Steel 0 0000223 Stainless Steel 0 0000319 down the correspondin a settings you Wou de L1 Coefficient of Invar Rod eS flow computer This entry applies to Brooks Compact Provers only This prover uses an invar rod to separate the optical detector switches The rod has a coefficient of 0 0000008 per F US units or 0 0000014 per C metric units L1 Plenum Pressure Constant This entry applies to Brooks Compact Provers only Enter the Nitrogen Spring Plenum Pressure Constant used to calculate the plenum pressure needed to operate the Brooks Compact Prover This pressure is related to the prover line pressure at the time of proving Plenum Pressure Line Pressure Plenum Constant 60 Psig The plenum constant depends on the size of the Brooks Compact Prover Valid values are saz Pinow constant sze Prenom Conta 12inch Mini 12 inch Standard Refer to Brooks L2 Pl
81. age of both signals Otherwise it uses the signal from the available transducer The pressure or temperature of the meter run being proved will be used to compensate the prover if either left or right transducer is assigned to an UO point 22 26 74 e 06 07 Configuration and Advanced Operation 2 5 8 Prover Settings Enter Y at Config Prove of the Misc Setup menu to open the following entries Inlet Outlet PL Prover Temperature I O Point Number Enter the I O point number used to input the prover inlet outlet temperature signal Inlet and outlet temperature sensor readings are averaged to determine the actual prover temperature To use the meter run temperature enter 0 for both inlet and outlet If there is only one temperature sensor enter 0 for outlet or enter the same number for both prover inlet and outlet PL Prover Temperature Transducer Tag Enter the 8 character tag name used to identify this temperature transducer on the LCD display PL Prover Temperature Transmitter Type Enter the Prover Temperature Transmitter Type RTD probes that follow the DIN curve and a 0 0385 RTD probes that follow the American curve and a 0 0392 2 Honeywell smart transmitter connected to an H combo module or a transducer with a 4 20mA linear output O HU H PL Prover Pressure UO Point Number Enter the I O point number used to input the prover inlet outlet pressure signal Inlet and
82. allowed in one transaction for each meter run The alarm points are 6 1n48 A B Comparator Error Detected 1n49 A Channel Failed 1n50 B Channel Failed 1n51 A and B Channels not equal The dual pulse A B Comparator Error Alarm 1n48 is activated when the accumulated error counts between the flowmeter channels exceeds this count threshold Accumulated error counts are cleared for every batch ooo L1A Meter K Factor Enter the number of pulses per unit volume that the flowmeter produces i e pulses barrel US units or pulses m or pulses liter metric units The K factor is used to calculate the gross flow rate L1 Prove Base Flow Rate Enter the base prove flow rate This should be the normal flow rate of the flowmeter For comparison and historical averaging purposes the flow computer will normalize all meter factors to this flow rate using the base meter factor curve entered in the Product Setup submenu see Configuring Products this chapter L1 Upstream Prover Volume This entry displays only when the prover type selected is a Uni Compact see Configuring Provers in this chapter Enter Y to select upstream volume as the prove volume Enter N to select downstream volume as the prove volume Certain models of compact provers such as the Brooks compact prover have different water draw volumes depending on whether the flowmeter is upstream or downstream of the prover This entry has no meaning wh
83. alue can be changed by the user Expression for this variable cannotbe changed from this entry 22 26 74 e 06 07 Configuration and Advanced Operation 3 3 3 Entering Values Directly into the User Variables In some cases it may be necessary to enter data directly into a user variable not the expression just the variable For example to preset the Report Number Variable 7025 in the example above we proceed as follows While in the Display Mode press Prog Input Enter the following will display USER VARIABLE 7025 Value 1234 7025 1835 3 3 4 Using the Variable Expression as a Prompt Entering plain text into the expression associated with the variable causes the computer no problems It ignores the text and leaves the variable unchanged For example USER VARIABLE 7025 Value 00018 Enter Lbs to SCF 3 3 5 Password Level Needed to Change the Value of a User Variable The first four variables 7025 7026 7027 and 7028 require Level 2 password the remaining variables require Level 1 Omni 3 13 Chapter 3 Note See the beginning of this chapter on how to program a Boolean expression if necessary Result can be positive or negative i Absolute flow difference minus 10 i Positive if flow rate is greater than 1000 True when both are positive Snapshot report when i alarm active 3 14 User Programmable Functions 3 3
84. an 1026 PL 50 is true PL 51 Note See Volume 4 for PL 52 detailed list of Booleans and Status Commands PL 53 PL 54 PL 55 Dm 22 26 74 06 07 a Omni 2 17 Chapter 2 User Programmable Functions Boolean Point 10xx Equation or Statement Comment or Remark TIP Use the blank lines PL 56 provided next to each configuration option to write PL 57 down the corresponding settings you entered in the PL 58 flow computer PL 59 Program Booleans These PL 60 64 Boolean statements are evaluated every 100 msec PL 61 starting at Point 1025 continuing through 1088 PL 62 Each statement can contain up to 3 Boolean variables PL 63 optionally preceded by the slash denoting the NOT PL 64 Function and separated by a valid Boolean operator PL 65 Operator Symbol PL 66 NOT AND PL 67 OR EXOR PL 68 So PL 69 GOTO PL 70 MOVE COMPARE PL 71 INDIRECT RISINGEDGE PL 72 FALLING EDGE PL 73 ONE SHOT PL 3 E g 1025 10028 1003 PL 74 Boolean 1025 is true when point 1002 is true AND point PL 75 1003 is NOT true PL 76 Note Points 1002 and 1003 in this example reflect the PL 77 status of Physical Digital I O Points 2 and 3 PL 78 There are no limitations as to what Boolean points can PL 79 be used in a statement Statements can contain the PL 80 results from other statements PL 81 E g 1026 1025 1105 PL 82
85. and Enter the dead band percent range PID Control will only compensate for setpoint deviations out of this range The control output will not change as long as the process input and the setpoint error deviation is within this dead band percentage limit range L1 Startup Ramp Enter the maximum percentage to which the valve movement is limited per 500 msec at start up The control output is clamped at 0 until the 17 PID Permissive PID 1 4 gt database points 1722 1725 is set true The control output is then allowed to increase at the start up ramp rate L1 Shutdown Ramp Enter the maximum percentage to which the valve movement is limited per 500 msec at shutdown When the 1 PID Permissive is lost the control output will ramp down towards 0 at the shutdown ramp rate During the ramp down phase a 2 PID Permissive PID 1 4 gt database points 1752 1755 is used to provide a ramp hold function If this om permissive is true 100 msec before entering the ramp down phase the control output will ramp down and be held at the minimum ramp down limit see the following entry until it goes false The control output will then immediately go to 0 see sidebar L1 Minimum Ramp to Enter the minimum percentage that the control output will be allowed to ramp down to In many cases it is important to deliver a precise amount of product This requires that the control output be ramped to some minimum and he
86. and Advanced Operation 2 5 12 Programmable Boolean Statements Program Booleans These Enter Y at Program Booleans of the Misc Setup menu to open the 64 Boolean statements are following entries evaluated every 100 msec starting at Point 1025 Boolean Point 10xx Equation or Statement Comment or Remark continuing through 1088 a Each statement can contain PL 25 up to 3 Boolean variables optionally preceded by the PL 26 slash denoting the NOT Function and separated by PL 27 a valid Boolean operator Operator Symbol PL 28 NOT PL 29 AND OR PL 30 EXOR EQUAL PL 31 IF GOTO PL 32 MOVE 3 PL 33 COMPARE INDIRECT PL 34 RISING EDGE FALLING EDGE PL 35 ONE SHOT PL 36 E g 1025 10028 1003 PL 37 Boolean 1025 is true when point 1002 is true AND point PL 38 1003 is NOT true PL 39 Note Points 1002 and 1003 i in this example reflect the PL 40 status of Physical Digital I O Points 2 and 3 PL 41 There are no limitations as to what Boolean points can PL 42 be used in a statement Statements can contain the PL 43 results from other i statements PL 44 E g 1026 1025 1105 PL 45 Boolean 1026 is true when Boolean 1025 is NOT true PL 46 OR Point 1105 is true Using the operator the PL a7 result of a statement can PL 48 initiate a command i E g 1027 1719 1026 PL 49 Request a Snapshot Report when Boole
87. anges to this document without notice Warranty Licenses and Product Registration Product warranty and licenses for use of OMNI flow computer firmware and of OmniCom Configuration PC Software are included in the first pages of each Volume of this manual We require that you read this information before using your OMNI flow computer and the supplied software and documentation If you have not done so already please complete and return to us the product registration form included with your flow computer We need this information for warranty purposes to render you technical support and serve you in future upgrades Registered users will also receive important updates and information about their flow computer and metering system Copyright 1991 2007 by OMNI Flow Computers Inc All Rights Reserved EI Omni 22 26 74 06 07 Volume 3c Configuration and Advanced Operation es Chapter 1 Overview of Firmware Revisions 22 74 26 74 Turbine Positive Displacement Liquid Flow Metering Systems with Meter Factor Linearization 1 1 Number of Meter Runs Type of Flowmeters Minimum 1 run Maximum 4 runs Turbine Positive Displacement Flowmeters Level A dual channel Pulse Fidelity checking can be performed on all 4 meter runs LD BROOKS COMPACT PROVER PRODUCT 1 T DO DQG gt lt gt lt A m gt lt DK D PRODUCT 2 a9 Lo pt n OA m gt lt T gt lt PRODUCT 3 090 LOO pat ta 2 FM gt l
88. ank lines provided next to each configuration option to write down the corresponding settings you entered in the flow computer Some of these entries may not appear on the display or in OmniCom Depending on the various configuration settings of your specific metering system only those configuration options which are applicable will be displayed TIP For maximum efficiency always start Modbus ID numbers from 1 2 28 User Programmable Functions 2 5 19 Archive File Setup Note See Technical Bulletin TB 960703 Storing Archive Data within the Flow Computer in Volume 5 for information on the Archive File n submenu 2 5 20 Peer to Peer Communications Settings Serial Port 2 of the flow computer can be configured to act as a simple Modbus slave port or as a peer to peer communication link Using the peer to peer link allows multiple flow computers to be interconnected and share data Enter Y at Peer Peer Comm Y of the Misc Setup menu to open the following submenu L1 Activate Redundancy Mode The active redundancy mode feature allows two flow computers to operate as a pair Each flow computer receives the same process signals and performs the same calculations i e in redundancy This mode is typically used in critical applications where failure of a flow computer cannot be tolerated Enter Y to allow both flow computers to manage the peer to peer link between the
89. ansaction 7 Target Slave ID Read Write Source Index Number of Points Destination Index Transaction 8 Target Slave ID Read Write Source Index Number of Points Destination Index 22 26 74 e 06 07 Volume 3c INFO Characters in refer to password levels Characters in refer to key presses TIP Use the blank lines provided next to each configuration option to write down the corresponding settings you entered in the flow computer Some of these entries may not appear on the display or in OmniCom Depending on the various configuration settings of your specific metering system only those configuration options which are applicable will be displayed INFO The OMNI Flow Computer determines what Modbus function code and what data type is involved by the Modbus index number of the data within the OMNI s database The Source Index determines the data type for a write The Destination Index determines the data type for a read Function codes used are 01 Read Multiple Booleans 15 Write Multiple Booleans 03 Read Multiple Variables 16 Write Multiple Variables 22 26 74 e 06 07 Transaction 9 Target Slave ID Read Write Source Index Number of Points Destination Index Transaction 10 Target Slave ID Read Write Source Index Number of Points Destination Index Transaction 11 Target Slave ID Read Write Source Index Numb
90. as detailed below manufacturers are based on SI or metric units You must UNCORRECTED DENSITY ensure that the constants entered are based on es i Les 2 Kg m C and kPa Contact D Ko T K t K d the densitometer manufacture or OMNI if you Where require assistance uncorrected density in Kgs m calibration constants supplied by Solartron in Kgs m and C A fb ll densitometer oscillation time period in microseconds usec TEMPERATURE COMPENSATED DENSITY D D gt 1 K T 20 K T 20 Where Dt temperature corrected density in Kgs m D uncompensated density in Kgs m K Calibration constants supplied by Solartron Tf Temperature in C TEMPERATURE AND PRESSURE COMPENSATED DENSITY D D gt 1 K Bir P Where Dpr temperature and pressure compensated density in Kgs m Dt temperature compensated density in Kgs m kan Kaoa Kao x H ka Kaa Kaa x P K 20A K 20B ban Ko1B Calibration constants supplied by Solartron P flowing pressure in kPag 26 74 06 07 Omni 5 9 Chapter 5 Flow Equations and Algorithms for SI Metric Units Revision 26 74 Additional Density Equation for Velocity of Sound Effects For LPG Products in the range of 350 to 550 Kgs m the following term can be applied to the temperature and pressure compensated density Dip Dos D K Dy K j Where Dyos density for velocity of
91. assigned In many cases the station densitometer that detects the product interfaces is installed many net barrels in advance of the metering skid to provide prior warning of a product change Enter the Line Pack Delay as the quantity of net barrels or net m between the product interface detector densitometer or gravitometer and the valve manifold used to end the batch A Delayed Gravity Rate of Change Flag database point 1814 is set when this number of barrels or m has been measured after the Product Interface Flag database point 1813 is activated i e a line pack delay is counted down to zero when a product interface is detected L1 Relative Density Specific Gravity Sample Time This entry displays only when a Station Density I O Point has been assigned It is used with the previous entry to determine the relative density rate of change Estimate the minimum amount of time in seconds it takes for a product change to be complete and set this timer by entering approximately 1 4 to 1 3 of that time False triggering of the product interface detection flag can be eliminated by ensuring that any density change must exist for at least this many seconds L1 Gross Batch Preset Counter Units Enter Y to select gross actual volume units IV Enter N to select net volume units GSV PL Select Volume Units This entry corresponds to metric units only and applies globally to all volumes within the flow computer Enter the volume un
92. ated from base meter factor curve MFpo meter factor offset from base meter factor curve obtained from proving Chapter 4 Flow Equations and Algorithms for US Customary Units Revision 22 74 4 2 2 Volume Correction Factor Vcr 4 AT log Ei caT Vor ES Where Ver volume correction factor e Napierian constant 2 71828 aTr correction for expansion at reference temperature Ka K RHO RHO P Where Kp amp K physical constants derived from mathematical data published in the API MPMS as follows Product Type Crude Oil Fuel Oil Jet Group Gasoline API Tables 6A 23A 6B 23B 6B 23B 6B 23B API Gravity e 7 S 5 8 0 to 100 owes a7 to 47 9 52 1 to 85 Relative 06110 E EE 0 6535 Boe 1 0760 1 0760 0 8395 0 7705 Ko 341 0957 103 8720 330 3010 192 4571 PK o om o oms RHO product density at reference temperature 141 5x Dun Alen 131 5 Where On density of water API gravity in degrees APleo When Product is between Jet Group and Gasoline B aTr At KSE RHO Where A amp B are numerical constants obtained from API Standards as follows Between Jet amp Gasoline API Tables 6B 24B 5B 23B API Gravity Range 48 0 to 52 0 Relative Density Range 0 7710 to 0 7885 Cl Eeer PB eo x Dei 4 4 YY Omni 22 74 07 07 Volume 3c Configuration and Advanced Operation AT differential temperature Ta Tr Wh
93. ation 2 5 17 Custom Modbus Data Packet Settings INFO Packets defined are Custom Modbus Data Packets are provided to reduce the number of polls usually read only and must needed to read multiple variables which may be in different areas of the always be retrieved as a packet When Modicon 984 database Groups of data points of any type of data can be concatenated into is selected these packet one packet by entering each data group starting index numbers 001 201 and setup entries are used to 401 The number of data bytes in a custom packet in non Modicon compatible define a logical array of mode cannot exceed 250 RTU mode or 500 ASCII mode When Modicon variables which can be read compatible is selected the number of data bytes in a custom packet cannot exceed 400 RTU mode or 800 ASCII mode Enter 1 2 or 3 to select a data packet at Custom Packet n of the Misc or written in any grouping The number of data points is always input in terms of OMNI logical elements i e an IEEE floating point Setup menu to open the entries below Under Index enter the database number comprises two 16 address or Modbus index number for each start data point of each group Under bit words but is considered Points enter the number of consecutive data points to include in each data one logical element group NE OMe naracar ni Custom Modbus Data Packet 1 Addressed at 001 refer to password levels
94. become familiar with the application you can decide to use the faster Random Access Method described below Once you have finished entering data in a setup submenu press the Prog key to return to the Select Group Entry screen Proceed as described in this manual for each setup option Meter Temperature Setup via the Random Access Method Setup entries require that you be in the Program Mode In the Display Mode press the Prog key The Program LED will glow green and the Select Group Entry screen will appear Then press Temp Enter or Temp Meter n Enter or Meter n Temp Enter n Meter Run 1 2 3 or 4 Use WN V keys to scroll Note Not Valid when a RTD Probe is specified 2 40 User Programmable Functions 2 9 Configuring Temperature 2 9 1 Accessing the Temperature Setup Submenu Applying the Menu Selection Method see sidebar in the Select Group Entry screen Program Mode press Setup Enter and a menu similar to the following will be displayed kk SETUP MENU Station Setup Meter Run Setup Temperature Setup Use the NJ W up down arrow keys to move the cursor to Temperature Setup and press Enter to access the submenu 2 9 2 Station and Meter Run Temperature Settings Station Meter 1 Meter 2 Meter 3 Meter 4 Low Alarm Limit EE Enter the temperature below which the flowmeter low alarm activates Transduce
95. ble Selected is Not Assigned to a If this message is displayed check the I O point assignment for the variable INFO Characters in refer to password levels Characters in refer to key presses TIP Use the blank lines provided next to each configuration option to write down the corresponding settings you entered in the flow computer Some of these entries may not appear on the display or in OmniCom Depending on the various configuration settings of your specific metering system only those configuration options which are applicable will be displayed Note In the privileged password area all passwords are legible upon entering the correct privileged password In all other cases when requested for a password upon entering the password the OMNI will display all entered characters as asterisk 2 6 Physical I O Point 2 5 3 Password Maintenance Settings Password maintenance settings can only be entered via the OMNI front panel keypad Enter Y at Password Maint of the Misc Setup menu to open the following entries PL Privileged Enter the privileged password to allow you to view and change all configuration data including other passwords PL Level 1 Enter the Level 1 password to allow entry of all configuration data except entries which determine the physical I O personality of the computer PL Level 1A Enter the Level 1A password to allow entry of Meter
96. by the flow transmitter manufacturer meter factor in use dimensionless volume correction factor dimensionless see 5 2 2 this chapter correction factor for pressure on liquid dimensionless see 5 2 3 this chapter correction factor for percent of sediment and water S amp W content in fluid dimensionless see 5 2 4 this chapter fluid live density at flowing conditions actual temperature and pressure in gm cc see 5 3 this chapter calculated reference density at base conditions standard or reference temperature and pressure in gm cc relative density at 60 F and equilibrium pressure multiplied by the weight in pounds of one cubic foot water at 60 F and 14 696 pounds per square inch absolute PSla 22 74 e 07 07 Volume 3c Dimensionless Values The calculated correction factors for liquid flow equations are dimensionless however consistent units must be used when applicable 22 74 e 06 07 Configuration and Advanced Operation 4 2 Correction Factors for Liquid Flow The flow rate equations for flowmeters require calculating the following correction factors oo od CO Meter Factor in Use Mp Volume Correction Factor Vcr Correction Factor for Pressure on Liquid Cp Correction Factor for Sediment and Water Content Csg w 4 2 1 Meter Factor in Use Mp MF MFgc MFpo Where Mr meter factor in use dimensionless Mr meter factor interpol
97. can decide to use the faster Random Access Method described below Once you have finished entering data in a setup submenu press the Prog key to return to the Select Group Entry screen Proceed as described in this manual for each setup option Prover Setup via the Random Access Method Setup entries require that you be in the Program Mode In the Display Mode press the Prog key The Program LED will glow green and the Select Group Entry screen will appear Then press Prove Setup Enter and use WN bal keys to scroll 22 26 74 e 06 07 Configuration and Advanced Operation 2 13 Configuring Provers 2 13 1 Accessing the Prover Setup Submenu Applying the Menu Selection Method see sidebar in the Select Group Entry screen Program Mode press Setup Enter and a menu similar to the following will be displayed SETUP MENU Grav Density Setup PID Control Setup Prover Setup Use the TM up down arrow keys to move the cursor to Prover Setup and press Enter to access the submenu 2 13 2 Prover Settings L2 Number of Runs to Average Enter the number of consecutive runs required to be considered a complete prove sequence This number must be between 2 and 10 L2 Maximum Number of Runs Enter the maximum number of runs that will be attempted to achieve a complete prove sequence This number must be between 2 and 99 L1 Prover Type Enter the type of pr
98. corders they are usually linear with relative density units 4 20mA output signal linear with relative density SG units 4 20mA output signal linear with grs cc density Solartron digital pulse Sarasota digital pulse UGC digital pulse oak WP Il 22 26 74 e 06 07 Omni Volume 3c INFO Characters in y refer to password levels Characters in refer to key presses TIP Use the blank lines provided next to each configuration option to write down the corresponding settings you entered in the flow computer Some of these entries may not appear on the display or in OmniCom Depending on the various configuration settings of your specific metering system only those configuration options which are applicable will be displayed INFO The number of process variable I O points available depends on the number of combo modules installed see Chapter 2 in Volume 1 for more information Point numbers range from 01 through 24 Assign 0 to invalidate the assigning of a variable UO Type Mismatch The computer will not let you assign the same UO point to incompatible transducer types i e an I O point cannot be assigned as a temperature input for Meter Run 1 and a pressure input for Meter Run 2 If the I O Type Mismatch message is displayed recheck the I O Shared Transducers Enter the same UO point to share transducers between meter runs Correcting a Mistake
99. ct n Enter n Product 1 through 8 Use IM V keys to scroll 22 26 74 e 06 07 Configuration and Advanced Operation Product 3 L1 Name L1 Table Select L2 API Relative Density Gravity Override L2 Relative Density SG Override L2 Reference Density Override L2 Reference Temperature L2 Alpha Coefficient L2 F Factor Override L2 Vapor Pressure at 100 F 37 8 C L1A Density Factor A B Meter 1 L1A Date of Meter Factor Curve L1A Meter Factor 1 L1A Flow Rate 1 L1A Meter Factor 2 L1A Flow Rate 2 L1A Meter Factor 3 L1A Flow Rate 3 L1A Meter Factor 4 L1A Flow Rate 4 L1A Meter Factor 5 L1A Flow Rate 5 L1A Meter Factor 6 L1A Flow Rate 6 L1A Meter Factor 7 L1A Flow Rate 7 L1A Meter Factor 8 L1A Flow Rate 8 L1A Meter Factor 9 L1A Flow Rate 9 L1A Meter Factor 10 L1A Flow Rate 10 L1A Meter Factor 11 L1A Flow Rate 11 L1A Meter Factor 12 L1A Flow Rate 12 Meter 2 Meter 3 Omni Meter 4 2 61 Chapter 2 User Programmable Functions INFO The following data rounded to 4 digits is from GPA 2145 92 and TP16 Product S G kg m Ethane 3562 355 85 Propane 5070 506 90 HD5 5010 500 50 5050 504 50 5100 509 50 152285 522 28 5629 562 34 5650 564 44 5840 583 42 5850 584 42 Iso Pentane 6247 624 08 n Pentane 6311 630 48 n Hexane 6638 663 14 Natural Gasolines 6650 6882 7070 Propylene I
100. ction by applying the basic company values our people our products and productivity Our products have become the international flow computing standard OMNI Flow Computers pursues a policy of product development and continuous improvement As a result our flow computers are considered the brain and cash register of liquid and gas flow metering systems Our staff is knowledgeable and professional They represent the energy intelligence and strength of our company adding value to our products and services With the customer and user in mind we are committed to quality in everything we do devoting our efforts to deliver workmanship of high caliber Teamwork with uncompromising integrity is our lifestyle Contacting Our Corporate Headquarters OMNI Flow Computers Inc 12620 West Airport Suite 100 Sugar Land Texas 77477 USA Phone 281 240 6161 Fax 281 240 6162 World wide Web Site http www omniflow com E mail Addresses seed EEN Helpdesk omniflow com ANA Getting User Support Technical and sales support is available world wide through our corporate or authorized representative offices If you require user support please contact the location nearest you see insert or our corporate offices Our staff and representatives will enthusiastically work with you to ensure the sound operation of your flow computer Ei Womni ix OMNI 6000 OMNI 3000 User Manual For Your Information About the Flow Comp
101. ctor Setup Submenu Applying the Menu Selection Method see sidebar in the Select Group Entry screen Program Mode press Setup Enter and a menu similar to the following will be displayed kk SETUP MENU Batch Preset Setup Batch Sequence Factor Setup Use the TIME up down arrow keys to move the cursor to Factor Setup and press Enter to access the submenu 2 16 2 Factor Settings L1 Weight of Water Also known as absolute density of water Weight of a barrel of water at 60 F or 15 C and 14 696 PSla or 101 325 kPa a Used to convert from specific gravity units to mass From GPA 2145 92 8 3372 Lbm Gal 350 161 Lbs Bbl Note This is the true weight of water NOT the conversion factor used to convert grs cc to Lbs Bbl sometimes given as 350 507 For metric versions Revision 26 the default value is 999 012 kg m L1 Flow Average Factor The flow averaging factor is the number of calculation cycles used to smooth the displayed flow rate A number 1 99 will be accepted A calculation cycle is 500msec L1 Atmospheric Pressure ABS This setting is used to convert flowing pressure readings in Psig to absolute pressure units PSla for US Units and for the metric version in absolute units in conformance to pressure metric units selected Number of Digits 0 9 1 8 Number of digits for the totalizer displayed Decimal Places Gross Decimal Places Net Decimal Places Mass The above
102. ctor interpolated from base flowmeter factor curve using base prove flow rate MFecra meter factor interpolated from base flowmeter factor curve using actual prove flow rate Meter Factor Offset from Base Curve Obtained from Proving Mr M WM 8 Mp PO Where Mr meter factor offset from base meter factor curve obtained from proving Mr meter factor at base prove flow rate MFecpa meter factor interpolated from base flowmeter factor curve using base prove flow rate Ei 5 14 Omni 26 744 06 07 Volume 3c 5 5 26 74 e 06 07 Configuration and Advanced Operation Calculations for PID Control 5 5 1 Primary Variable Error ee Forward Action ep Primary Setpoint Span Primary Variable Span Reverse Action ep Primary Variable Span Primary Setpoint 5 5 2 Secondary Variable Error e Forward Action Ge Secondary Gain x Sec Setpoint Span Sec Variable Span Reverse Action Ge Secondary Gain x Sec Variable Span Sec Setpoint Span 5 5 3 Control Output Co Before Startup Limit Function Controlling on Primary Variable Co Primary Gain x ep Le Controlling on Secondary Variable Co Primary Gain x es Xe 5 Womni 5 15 Chapter 5 Flow Equations and Algorithms for SI Metric Units Revision 26 74 5 5 4 Integral Error Ye Controlling on Primary Variable Xe Repeats per Minute of Primary Variable x Sample Period x ep Xe n 1
103. d as specific gravity see next entry To use the live measured density or gravity value obtained from a densitometer gravitometer in the equations enter any minus number The flow computer will then correct the signal from the densitometer or gravitometer to 60 F if required this may be flowing at flowing or reference conditions see Meter Run I O Point Configuration Should the gravitometer fail the flow computer can be made to use the absolute value of the API Gravity Override If the override code in Grav Density Setup is set to 5 On transmitter failure use absolute value of override SG API for this product 2 57 Ei Womni Chapter 2 INFO Characters in refer to password levels TIP Use the blank lines provided next to each configuration option to write down the corresponding settings you entered in the flow computer INFO The following data rounded to 4 digits is from GPA 2145 92 and TP16 Product S G kg m Ethane 3562 355 85 Propane 5070 506 90 HD5 5010 500 50 5050 504 50 5100 509 50 Propylene 5228 522 28 Iso Butane 5629 562 34 5650 564 44 n Butane 5840 583 42 5850 584 42 Iso Pentane 6247 624 08 n Pentane 6311 630 48 n Hexane 6638 663 14 Natural Gasolines 6650 664 34 n Heptane 6882 687 52 n Octane 2070 706 30 n Nonane 7219 721 19 n Decane 7342 733 48 Propylene figures are derived from API 11 3 3 2 INFO API 2540 Tables 23A or 23B US or
104. d in a Boolean statement including the results of other Boolean statements or the status of physical I O points Programmable Accumulator Points 1089 1099 There are 11 Programmable points that are used with Variable Points 7089 through 7099 for programming pulse outputs for Digital I O or Front Panel Counters 22 26 74 e 06 07 Volume 3c 22 26 74 e 06 07 Configuration and Advanced Operation One Shot Boolean Points 1501 1649 The 149 Boolean flags located between 1501 and 1650 are used to store temporary data that has been received via the Modbus link or put there by a Boolean statement These Boolean variables can be sent to a digital output or used in the Boolean statements described above Scratch Pad Boolean Points 1650 1699 The 50 Boolean flags located between 1650 and 1699 can be use as momentary commands When set true they remain on for two seconds 3 2 2 Sign of Analog or Calculated Variables 5001 8999 The sign of analog or calculated variables can also be used in a Boolean statements by simply specifying the point number The Boolean value of the variable is true if itis positive and false if it has a negative value 3 2 3 Boolean Statements and Functions Each Boolean statement consists of up to 3 variables optionally preceded by the Boolean NOT function and separated by one of the Boolean functions AND OR Exclusive OR or EQUAL The following symbols ar
105. d table of contents at the beginning of each volume Volume 1 System Architecture and Installation Volume 1 is generic to all applications and considers both US and metric units This volume describes Basic hardware software features Installation practices Calibration procedures Flow computer specifications Volume 2 Basic Operation This volume is generic to all applications and considers both US and metric units It covers the essential and routine tasks and procedures that may be performed by the flow computer operator Both US and metric units are considered General computer related features are described such as Overview of keypad functions Adjusting the display Clearing and viewing alarms Computer totalizing Printing and customizing reports Co o On o The application related topics may include Batching operations Proving functions PID control functions Audit trail Other application specific functions ooo o Depending on your application some of these topics may not be included in your specific documentation An index of display variables and corresponding key press sequences that are specific to your application are listed at the end of each version of this volume Volume 3 Configuration and Advanced Operation Volume 3 is intended for the advanced user It refers to application specific topics and is available in four separate versions one for each application revision This
106. depends on this entry For Pressure Transmitters enter the selected Damping Code Il 0 0 seconds 5 2 seconds 1 0 16 seconds 6 4 seconds 2 0 32 seconds 7 8 seconds 3 0 48 seconds 8 16 seconds 4 1 seconds 9 32 seconds For Temperature Transmitters enter the selected Damping Code 0 0 seconds 5 6 3 seconds 1 0 3 seconds 6 12 7 seconds 2 0 7 seconds 7 25 5 seconds 3 1 5 seconds 8 51 5 seconds 4 3 1 seconds 9 102 5 seconds 22 26 74 e 06 07 Volume 3c INFO The first menu Misc Configuration should always be completed first as these entries specify the number and type of input and output devices connected to the flow computer i e the menus following the Misc Configuration menu do not ask for configuration data unless a transducer has been defined Flow Computer Configuration via the Menu Selection Method It is best to use this method when programming an application for the first time as every possible option and variable will be prompted Once a computer is in operation and you become familiar with the application you can decide to use the faster Random Access Method described below Once you have finished entering data in a setup submenu press the Prog key to return to the Select Group Entry screen Proceed as described in this manual for each setup option Meter Run Setup via the Random Access Method Setup entries require that you be
107. e IM V keys to scroll 22 26 74 e 06 07 Configuration and Advanced Operation Product 7 L1 Name L1 Table Select L2 API Relative Density Gravity Override L2 Relative Density SG Override L2 Reference Density Override L2 Reference Temperature L2 Alpha Coefficient L2 F Factor Override L2 Vapor Pressure at 100 F 37 8 C L1A Density Factor A B Meter 1 L1A Date of Meter Factor Curve L1A Meter Factor 1 L1A Flow Rate 1 L1A Meter Factor 2 L1A Flow Rate 2 L1A Meter Factor 3 L1A Flow Rate 3 L1A Meter Factor 4 L1A Flow Rate 4 L1A Meter Factor 5 L1A Flow Rate 5 L1A Meter Factor 6 L1A Flow Rate 6 L1A Meter Factor 7 L1A Flow Rate 7 L1A Meter Factor 8 L1A Flow Rate 8 L1A Meter Factor 9 L1A Flow Rate 9 L1A Meter Factor 10 L1A Flow Rate 10 L1A Meter Factor 11 L1A Flow Rate 11 L1A Meter Factor 12 L1A Flow Rate 12 Meter 2 Meter 3 Omni Meter 4 2 65 Chapter 2 User Programmable Functions INFO The following data rounded to 4 digits is from GPA 2145 92 and TP16 Product S G kg m Ethane 3562 355 85 Propane 5070 506 90 HD5 5010 500 50 5050 504 50 5100 509 50 152285 522 28 5629 562 34 5650 564 44 5840 583 42 5850 584 42 Iso Pentane 6247 624 08 n Pentane 6311 630 48 n Hexane 6638 663 14 Natural Gasolines 6650 6882 7070 Propylene Iso Butane n Butane 664 34 687 52 706 30
108. e Contact closure inputs are activated to provide a startup and shutdown ramp function for each control loop if needed Primary setpoint can be adjusted via an analog input a keypad entry or communication link Control loops are not dedicated and may be cascaded Data is processed every 500 msec 1 17 Flow Weighted Averages Flow weighted averages are calculated for all input variables and correction factors based on hourly daily totals and running batch totals 1 18 User Programmable Digital I O Each I O point is individually configurable as either an input or output with variable Delay On and Delay Off Pulse widths are adjustable when used as auxiliary totalizer outputs or sampler outputs 1 19 User Programmable Logic Functions Sixty four logic statements can be user programmed to control meter run switching prover loop and provide user auxiliary control functions 1 20 User Programmable Alarm Functions Sixteen of the programmable logic statements described above can be used to contain custom text messages which can be displayed logged and printed 1 21 User Programmable Variables Sixty four user variables can be programmed to manipulate data for display and printing or remote access via a communication port Typical uses include special units conversions customer averaging algorithms for leak detection special limit checking and control functions The programmable variable statements can also be used to type ca
109. e and with the valve open as it was before the system reset PL PID Tag Enter an 8 character tag name to identify the PID controller output signal on the LCD display Omni Is secondary action forward 22 26 74 e 06 07 Volume 3c INFO Characters in refer to password levels Characters in refer to key presses TIP Use the blank lines provided next to each configuration option to write down the corresponding settings you entered in the flow computer Some of these entries may not appear on the display or in OmniCom Depending on the various configuration settings of your specific metering system only those configuration options which are applicable will be displayed 22 26 74 e 06 07 Configuration and Advanced Operation 2 5 10 Analog Output Settings Press n Enter at Config D A Out n of the Misc Setup menu to open the following entries n Analog Output 1 through 12 Assign 4mA 20mA L1 Analog Output 1 Under Assign enter the database index number of the variable that will be assigned to the digital to analog output points Under at 4mA and at 20mA enter the required scaling parameters in engineering units at 4mA and 20mA e g For Meter 1 Net Flow Rate assigns 7102 Typical scaling might be 4mA 0 0 bbls hr and 20mA 1000 0 bbls hr Remark Enter a remark in this 16 character field which identifies and documents the function
110. e used to represent the functions Function Symbol NOT AND amp OR EX OR S EQUAL IF GOTO G MOVE RANGE COMPARE RISING EDGE FALLING EDGE ONE SHOT The function allows a statement to be used to change the state of the Boolean point on the left of the equal sign usually a command point Evaluation precedence is left to right Chapter 3 INFO Points 1005 and 1006 reflect the current status of physical I O Points 05 and 06 which could be inputs connected to the outside world or outputs controlling relays etc TIP Leave plenty of empty statements between programmed ones This will allow you to modify the execution order of your program if you need to later User Programmable Functions To program the Boolean points proceed as follows From the Display Mode press Prog Setup Enter Enter and the following menu will be displayed Misc Setup Password Maint Y Check Modules Y Config Station Y Config Meter n Config PID n Config D A Out n Front Pnl Counters Program Booleans _ Program Variables User Display n Scroll down to Get Boolean Y and enter Y Assuming that no Booleans are as yet programmed the display shows Boolean Point 10xx Note that the cursor is on the line labeled 25 At this point enter the Boolean equation that will cause Boolean point 1025 to be ON True OFF False For example to turn Boolean 10
111. e will be displayed Meter Density Temperature Setup via the Random Access Method To access these settings in the Program Mode press Density Temp Enter INFO The Density Temperature sensor is used to compensate for temperature expansion effects which effect the periodic time of oscillation of the densitometer It is also used when desired to calculate the density of the liquid to reference temperature using API 2540 Table 23 23A or 23B Note Not Valid when a RTD Probe is specified 22 26 74 e 06 07 Configuration and Advanced Operation Station Meter 1 Meter 2 Meter 3 Meter 4 This entry only applies to Honeywell digital transmitters connected to an H Type combo module The process variable i e temperature is filtered by the transmitter before being sent to the flow computer The time constant used depends on this entry For Temperature Transmitters enter the selected Damping Code 0 0 seconds 5 6 3 seconds 1 0 3 seconds 6 12 7 seconds 2 0 7 seconds 7 25 5 seconds 3 1 5 seconds 8 51 5 seconds 4 3 1 seconds 9 102 5 seconds 2 9 3 Station and Meter Run Density Temperature Settings Station Meter 1 Meter 2 Meter 3 Meter 4 Low Limit Enter the temperature below which the densitometer low alarm activates Transducer values approximately 5 below this entry activate the transducer fail low alarm High Limit Enter the temperature above which the densitometer h
112. ective D Ko Ky i t IK x t manufacturers Where D uncorrected density in grams cc Ko Rue Calibration constants of density probe entered via the keypad K2 ll densitometer oscillation time period in microseconds usec CORRECTED DENSITY Keg D Kp D Kp x Pr Po Kaes l ENAA Where De corrected density in grams cc Det density correction factor D uncorrected density in grams cc Kp pressure constants P flowing pressure in PSlg Pc Calibration pressure in PSlg Ki temperature constants T flowing temperature in F Te calibration temperature in F 4 8 Omni 22 74 07 07 Volume 3c Densitometer Calibration Constants In many cases the densitometer constants supplied by the manufacturers are based on SI or metric units You must ensure that the constants entered are based on grams cc F and PSlg Contact the densitometer manufacture or OMNI if you require assistance 22 74 e 06 07 Configuration and Advanced Operation Solartron Density grams cc Solartron density is calculated using the frequency signal produced by a Solartron frequency densitometer and applying temperature and pressure corrections as detailed below UNCORRECTED DENSITY D Ko K4 x t K2 x t Where D uncorrected density in grams cc Ko K Calibration constants supplied by Solartron in grams cc and F K2 PR ll densitom
113. ed in this section are performed by the OMNI to determine the density from frequency signals received from the following third party densitometers and gravitometers Sarasota Peek 6 UGC 6 Solartron Sarasota Density gm cc Sarasota density is calculated using the frequency signal produced by a Sarasota densitometer and applying temperature and pressure corrections as shown below ER d 2 k t to D Dcr 7 to to Where De corrected density DcF Density correction factor Do calibration constant in mass volume t densitometer oscillation period in microseconds usec to calibration constant in microseconds to Tcoet X Tf Tcal Pcoef X Pf Peal to where Tf flowing temperature in F Tcoef temperature coefficient in usec F Dr flowing pressure in PSlg Pcoef pressure coefficient in usec PSlg Pcal calibration pressure in PSlg K spool calibration constant 4 7 Chapter 4 Flow Equations and Algorithms for US Customary Units Revision 22 74 UGC Density grams cc Density and Relative UGC density is calculated using the frequency signal produced by a UGC Density Values densitometer and applying temperature and pressure corrections as shown Determined from below Densitometer and Gravitometer Frequency Signals The equations used to determine the UNCORRECTED DENSITY density and relative density via density transducers are j 2 provided by the resp
114. eeeeeneeeees 5 3 5 2 1 Meter Factor in Use Mp ccccccsccccccsecsssnesececececseseaaeseeceseeeceeeaaeseseeeeeseeseaaeseeeeseeenes 5 3 5 2 2 Volume Correction Factor Mer ccccescccessescececseceeecseecececseeeeeescseeeeessseeeeessensaeesseeaaees 5 4 5 2 3 Correction Factor for Pressure on Liquid Cpp ceccccessesceceseeeeeeseeeeeeeseeaeesessenaees 5 5 5 3 Densities and Other Properties of Liquids ccssseeeeeesseeeeeeeeseeeeeeeeeeeeeeeneeeees 5 6 5 3 1 Flowing Density o for Crude Oil and Refined Producs 5 6 5 3 2 Density of Ethane Propane and C3 MiXes essesssesssrsssrssrrssrrssrrsssrrssrrssrrssrrssrns 5 6 5 3 3 Density and Relative Density Specific Gravity Calculated from Live Digital Densitometer Output Frequency ccceccceceeeceeeeeeeeeeeceaeeesaaeeeceeeeseeeesaeeeeaeeeeeeeeaas 5 7 5 4 Liquid Flow Rate for Provers sisiccsisccsasesnanedeinisnccintnnienasnssuasaniisneninedeastaniiadnannenasn 5 11 5 4 1 Prove Gross Flow Rate at Flowing Conditions mit 5 11 5 4 2 NOMONGCIALUIC es eSESd E REEENNEEE NEEN shubacdueeesavedcqvenddecsdeysscceesncesieesivtereens 5 11 5 4 3 Meter Factors for Provers A 5 12 5 5 Calculations for PID Control sissssscscccsscesccsccacsceecsasscecsiaeeaciccaveansessanennesenseannsesacancs 5 15 Soto Primary Variable Errors E 5 15 5 5 2 Secondary Variable Error e 5 15 5 5 3 Control Output Cy Before Startup Limit Function 0 ccceeeeeeeeeeeseeeeeneeees
115. en each interval report Entering 0 will disable interval reports The maximum allowed is 1440 minutes which will provide one interval report per 24 hour period L1 Print Interval Start Time Enter the start time from which the interval report timer is based e g Entering 01 00 with a Print Interval of 120 minutes will provide an interval report every odd hour only L1 Daily Report Time Enter the hour at which the daily report will print at the beginning of the contract day e g 07 00 L1 Disable Daily Report Enter Y to disable the Daily Report default is N This simply blocks the report from printing Data will still be sent to the historical buffers last 8 and archive if archive is setup L1 Daylight Savings Time Start Enter the Day Month Year that daylight savings time begins L1 Daylight Savings Time End Enter the Day Month Year that daylight savings time ends L1 Disable Batch Stack Operation L1 Clear Daily Totals at Batch End Enter N to provide 24 hour totals of all flow through the flowmeter regardless of what product is run Select Y to clear the totalizers at the end of each batch This would mean that the daily totalizers would not necessarily represent 24 hours of flow but the amount of flow since the last batch end or the daily report Ei Womni 2 69 Chapter 2 TIP Use the blank lines provided next to each configuration option to write down the c
116. en you are using a normal full sized prover with one water draw volume L1 Use Meter Factor in Net Y Enter Y to apply the meter factor in the net and mass flow equations Enter N to ignore the meter factor in flow calculations nonetheless it will still appear on all reports L1 Temperature Compensated In some cases the flowmeter may be fitted with a mechanical or electronic temperature compensator Enter Y for the OMNI Flow Computer to set the temperature correction VCF to 1 0000 in all equations Enter N if the meter provides gross uncompensated pulses 22 26 74 e 06 07 Volume 3c Configuration and Advanced Operation Meter 1 Meter 2 Meter 3 Meter 4 INFO Characters in L1 BS amp W as Aux n refer to password levels ie Tot Met a lt a a ce ee Characters in TT refer to Select the auxiliary input or other source to be used to input the S amp W for each meter run key presses 0 None 3 Use Auxiliary Input 3 1 Use Auxiliary Input 1 4 Use Auxiliary Input 1 TIP Use the blank lines 2 Use Auxiliary Input 2 5 Modbus Direct provided next to each The flow computer will use this input to determine Net Standard Volume S amp W corrected configuration option to write volume down the corresponding settings you entered in the L1 Meter Model flow computer Some of these entries may not appear on the display or in OmniCom Depending on P the various configuration L1 Meter Size K
117. enum Pressure Deadband This entry applies to Brooks Compact Provers only Enter the Plenum Pressure Deadband The Brooks Compact Prover requires that the plenum pressure be maintained within certain limits The flow computer calculates the correct plenum pressure at the beginning of each prove sequence and will charge or vent nitrogen until the measured plenum pressure is within the specified deadband L1 Prover Upstream Volume This entry applies to uni compact provers only Enter the upstream water draw volume at base temperature and pressure if applicable L1 Prover Downstream Volume This entry applies to uni compact provers only Enter the downstream water draw volume at base temperature and pressure if applicable L1 Over travel This entry does not apply to Master Meter proving Enter the estimated amount of flow that the sphere or piston displaces after activating the first detector switch multiplied by 1 25 L2 Inactivity Timer Enter the time in seconds before the prove is aborted due to prover inactivity Make sure you allow enough time for the sphere or piston to travel between detector switches at the lowest flow rate expected When using the Master Meter Method allow enough time for the amount of flow to pass through the master meter at the lowest expected flow rate L1 Prover Diameter This entry is not applicable to Master Meter proving Enter the internal diameter of the prover tube in inches or mm
118. er of Points Destination Index Transaction 12 Target Slave ID Read Write Source Index Number of Points Destination Index Transaction 13 Target Slave ID Read Write Source Index Number of Points Destination Index Configuration and Advanced Operation 2 31 Chapter 2 TIP Use the blank lines provided next to each configuration option to write down the corresponding settings you entered in the flow computer Some of these entries may not appear on the display or in OmniCom Depending on the various configuration settings of your specific metering system only those configuration options which are applicable will be displayed 2 32 Transaction 14 Target Slave ID Read Write Source Index Number of Points Destination Index Transaction 15 Target Slave ID Read Write Source Index Number of Points Destination Index Transaction 16 Target Slave ID Read Write Source Index Number of Points Destination Index User Programmable Functions 22 26 74 e 06 07 Volume 3c INFO The first menu Misc Configuration should always be completed first as these entries specify the number and type of input and output devices connected to the flow computer i e the menus following the Misc Configuration menu do not ask for configuration data unless a transducer has been defined Flow Computer Configuration via the Menu Selection Method It
119. ere Ta actual temperature in F T reference temperature in F 4 2 3 Correction Factor for Pressure on Liquid Cp 1 1 P P xF Cp Cp correction factor for pressure on liquid dimensionless P flowing pressure in pounds per square inch gauge PSlg Pe equilibrium vapor pressure calculated from the correlations developed by Dr R W Hankinson et al of Phillips Petroleum Company for members of the GPA and published as GPA Technical Publication N 15 F Compressibility factor for hydrocarbons using API MPMS 11 2 1 for liquids 0 to 90 API relative density and using API MPMS 11 2 2 for hydrocarbons ranging 0 35 to 0 637 relative density and 50 F to 140 F 4 2 4 Correction Factor for Sediment and Water Content Csaw AS amp W C oars SEW 100 Where Csaw correction factor for percent of sediment and water S amp W content in fluid dimensionless S amp W percent of sediment and water content in fluid Dm 22 744 06 07 YY Omni 4 5 Chapter 4 4 6 Flow Equations and Algorithms for US Customary Units Revision 22 74 4 3 Densities and Other Properties of Liquids The flow rate equations for flowmeters require determining the following densities and other properties 0 0 0 0 4 3 1 Flowing Density pf for Crude Oil and Refined Products Density of Ethane Propane and Methane Mixes Density of Water Density and Relative Density Specific G
120. ers L1 Damping Code This entry only applies to Honeywell digital transmitters connected to an H Type combo module The process variable i e temperature is filtered by the transmitter before being sent to the flow computer The time constant used depends on this entry For Temperature Transmitters enter the selected Damping Code 0 0 seconds 5 6 3 seconds 1 0 3 seconds 6 12 7 seconds 2 0 7 seconds 7 25 5 seconds 3 1 5 seconds 8 51 5 seconds 4 3 1 seconds 9 102 5 seconds 22 26 74 e 06 07 Volume 3c INFO Characters in Y refer to password levels TIP Use the blank lines provided next to each configuration option to write down the corresponding settings you entered in the flow computer 22 26 74 e 06 07 Configuration and Advanced Operation 2 9 5 Prover Density Temperature Settings Inlet Outlet Low Alarm Limit Enter the temperature below which the prover low alarm activates Transducer values approximately 5 below this entry activate the transducer fail low alarm High Alarm Limit Enter the temperature above which the prover high alarm activates Transducer values approximately 10 above this entry activate the transducer fail high alarm L2 Override Enter the temperature value that is substituted for the live transducer value depending on the override code An displayed along side of the value indicates that the override value is substituted L2 Override Code
121. ers in refer to key presses TIP Use the blank lines provided next to each configuration option to write down the corresponding settings you entered in the flow computer Some of these entries may not appear on the display or in OmniCom Depending on the various configuration settings of your specific metering system only those configuration options which are applicable will be displayed 2 38 User Programmable Functions Meter 1 Meter 2 Meter 3 Meter 4 L1 Error Check Threshold This entry will display only when Dual Pulse is selected under Config Meter Runs Misc Setup It applies only when a E combo module is fitted and Pulse Fidelity Checking is enabled Enter the Pulse Fidelity Error Check Threshold in Hz for each meter run To eliminate bogus alarms and error count accumulations the dual pulse error checking functions are disabled until the sum of both pulse trains exceeds the pulses per seconds entered for this setting Example Entering 50 for this threshold means that the dual pulse error checking will be disabled until both A and B channels of the flowmeter pick offs are providing 25 pulses per second each L1 Max Error Counts per Batch This entry will display only when Dual Pulse is selected under Config Meter Runs Misc Setup It applies only when a E combo module is fitted and Pulse Fidelity Checking is enabled Enter the maximum number of error pulses
122. etanaacceceteanennnieematocces 1 4 1 17 Flow Weighted Averages secceeeeesssseeeeeeceesesesssensnenenneeeeeeeensnsnneneeeeesenensnee 1 4 1 18 User Programmable Digital I O cc ccsseesssseeeeeeeseeeeeeeeeseeeeeensseeeeeeseeneeeeeeseeeees 1 4 1 19 User Programmable Logic Functions ssssssssennennnnnnnnunnnnnnnnnnnnnnnnnnnnnnnnnn nnmnnn 1 4 1 20 User Programmable Alarm Functions ccceecccesseeeeeeeeeeeeeeeeeeesneneeeeeeeeeneeeeees 1 4 1 21 User Programmable Variables ccccccsssseeeeseceesesessseneensneeeeeeeensessnenneeeeeeeensesnes 1 4 1 22 User Display Setups wise ctaicecissencetecanseaceiansncseceeventesenenccensisinecenectxansccteeinasectenectanceueis 1 5 1 23 User Report Template wsisicssscscsecsssasescesescsccissnsseensetscsesessnneasasnseseaeseassnseencsnenectsaens 1 5 1 24 Serial Communication LUM 2 sstseeueueuutesgEsSgakeuNSEEEESSRNEEENENRSSEEEEEEEAEEEENKEEESENEEAEN 1 5 1 25 Peer to Peer COMMUNICATIONG cccseeeeeeeseneeeeeeseeeeeeeeneeeeeeeeeeeneeeeesseeeeeenseeeneess 1 5 1 26 Archiv Date sgesssgdsseessuksk tesg easggkergegegkedgeeEReREShRREdESRSbEbNERAEENE Seu CNS bEEhRSEENEEgER 1 5 1 27 OmniCom Windows Version Software Communications Package 1 5 1 28 OmniView Windows Version Interface Software Package ss sceesseeeeeees 1 5 1 29 Ethernet Module icicvisinisiaccieansssnennsvinsennewawerinesnaiminainetdeiannnincarenand annienaneninmarenis 1 6
123. eter oscillation time period in microseconds usec TEMPERATURE COMPENSATED DENSITY Dr D x 1 Kyg Tp 68 Kig T 68 Where Dy temperature corrected density in grams cc D uncompensated density in grams cc K SCH Calibration constants supplied by Solartron 19 Tf Temperature in F TEMPERATURE AND PRESSURE COMPENSATED DENSITY Dpr Dz x 14K 29 Pr K 24 lt P Where Dpr temperature and pressure compensated density in grams cc Dy temperature compensated density in grams cc Koo Kaoa T Kao i P K Kaa M IR si K 20a K 20B ee Kaaf calibration constants supplied by Solartron bam flowing pressure in PSlg Di YY Omni 4 9 Chapter 4 4 10 Flow Equations and Algorithms for US Customary Units Revision 22 74 Additional Density Equation for Velocity of Sound Effects For LPG Products in the range of 0 350 0 550 grams cc the following term can be applied to the temperature and pressure compensated density Dip 3 Dyos Dip K Dip ki Where Dyos density for velocity of sound effects in grams cc Dip temperature and pressure compensated density in grams cc K Kj Users wishing to implement the above term are advised to contact Solartron to obtain a reworked calibration sheet containing the coefficients K and Kr Typically Kr 1 1 and Kj 0 5 If you do not want to implement the above term enter 0 0 for Ky calibration constants supplied
124. etermines the data type when the transaction is a read The source index number determines the data type when the transaction is a write L1 Destination Index Enter the database index number or address of where the data is to be stored destination index or address If the transaction is a read this will be the index number within the master OMNI s database If the transaction is a write this will be the register number within the remote slave s database Transaction 2 Target Slave ID Read Write Source Index Number of Points Destination Index Transaction 3 Target Slave ID Read Write Source Index Number of Points Destination Index 2 29 Chapter 2 User Programmable Functions TIP Use the blank lines provided next to each configuration option to write down the corresponding settings you entered in the flow computer Some of these entries may not appear on the display or in OmniCom Depending on the various configuration settings of your specific metering system only those configuration options which are applicable will be displayed 2 30 Transaction 4 Target Slave ID Read Write Source Index Number of Points Destination Index Transaction 5 Target Slave ID Read Write Source Index Number of Points Destination Index Transaction 6 Target Slave ID Read Write Source Index Number of Points Destination Index Tr
125. fications procedures and other information of interest This is the most dynamic and current volume Technical bulletins may be added to this volume after its publication You can view and print these bulletins from our website Conventions Used in this Manual Several typographical conventions have been established as standard reference to highlight information that may be important to the reader These will allow you to quickly identify distinct types of information CONVENTION USED DESCRIPTION Sidebar Notes Info Tips Example Sidebar notes or Info Tips consist of concise information of interest which is enclosed in a gray shaded box placed on the left margin of a page EE These refer to topics that are either next to them or to highlight important information on the same or facing page It is highly in a concise manner recommended that you read them Keys Keypress Keys on the flow computer keypad are denoted with Sequences brackets and bold face characters e g the up arrow key is denoted as Il The actual function of Example the key as it is labeled on the keypad is what appears between brackets Keypress sequences that are executed from the flow computer keypad are expressed in a series of keys separated by a space as shown in the example Prog Batch Meter n Screen Displays Sample screens that correspond to the flow Example computer display appear surrounded by a dark gray border with
126. four entries are Read Only To change these values the user must go thru the Password Maintenance mode and reset totalizer which will allow the user to change the decimal place resolution for these entries 22 26 74 e 06 07 Volume 3c INFO Characters in refer to password levels TIP Use the blank lines provided next to each configuration option to write down the corresponding settings you entered in the flow computer Printer Setup via the Random Access Method Setup entries require that you be in the Program Mode In the Display Mode press the Prog key The Program LED will glow green and the Select Group Entry screen will appear Then press Print Setup Enter and use WN bal keys to scroll 22 26 74 e 06 07 Configuration and Advanced Operation 2 17 Configuring Printers 2 17 1 Accessing the Printer Setup Submenu Applying the Menu Selection Method see sidebar in the Select Group Entry screen Program Mode press Setup Enter and a menu similar to the following will be displayed kkk SETUP MENU Batch Sequence Factor Setup Printer Setup Use the LH up down arrow keys to move the cursor to Printer Setup and press Enter to access the submenu 2 17 2 Printer Settings L1 Computer ID Appears on all reports Enter up to 8 alphanumeric characters to identify the flow computer L1 Print Interval in Minutes Enter the number of minutes betwe
127. fy your entry A list of data groups and associated key presses is listed later in this chapter Example Pressing Temp will allow you access to temperature data for all meter runs Pressing Meter 1 Temp or Temp Meter 1 will allow access to only Meter Run 1 temperature data For example pressing Meter 1 Temp will display the following until the Enter key is pressed Press Keys to Select Group Entry or Press Prog to Exit Meter 1 Temp 22 26 74 e 06 07 Volume 3c Configuration and Advanced Operation Pressing the Enter key will display a screen similar to this TEMPERATURE 1 Deg F Low Limit 30 0 High Limit 125 0 Override 60 0 2 2 5 Passwords INFO Most entry groups Except when changing transducer high low alarm limits a password is usually occupy multiple screens so asked for when changing the configuration data within the computer be sure to use bett V to scroll and see all data The flow computer has independent password protection of the following o Local Keypad Access Modbus Port 1 selectable Physical Serial Port 1 o Modbus Port 2 Physical Serial Port 2 o Modbus Port 3 Physical Serial Port 3 o Modbus Port 4 Physical Serial Port 4 Local Keypad Access Three password levels are provided 0 Privileged Level 6 Level 1 Level 1A 6 Level 2 Allows complete access to all entries within the flow computer including keypad passwords
128. ges This allows software developers an easy means of debugging communications software Error checking should only be disabled temporarily when debugging the master slave communication link The computer expects dummy characters in place of the CRC LRC or BCC Enter Y to perform error checking on incoming messages For maximum data integrity always enter Y during normal running conditions Enter N to disable error checking on incoming messages This entry will be disabled for Serial Port 1 if a printer is selected as the port type L1 New Ethernet Y N Computer Default N Allow users to set the mode to work with earlier or newer modules of the Ethernet card O earlier Ethernet modules with 384000 Baud and Only Modbus ID will be entered 1 Newer Ethernet Modules 57600 Baudrate and additional entries as shown below L1 Modbus ID Enter the Modbus ID of the Ethernet Module L1 IP Address All devices on a network require a unique IP address The IP is entered in dotted decimal notation L1 Netmask IP address contain a Netmask identifier The Netmask is entered in dotted decimal notation L1 Gateways Ifa default gateway exists for accessing other subnets it can be entered here The Gateway is entered in dotted decimal notation L1 Reports Y N Select Y to allow reports to be printed L1 Alarms Y N Select Y to allow Alarms reports to be printed 22 26 74 e 06 07 Volume 3c Configuration and Advanced Oper
129. ices must use the same protocol type The RTU protocol is preferred as it is twice the speed of the ASCII Selecting Modbus RTU Modem provides RTU protocol with relaxed timing which is usually needed when communicating via smart modems These modems have been found to insert inter character delays which cause a premature end of message to be detected by the flow computer IMPORTANT You must select either Modbus RTU or Modbus RTU Modem protocol for the port that will be used to communicate with OmniCom PC configuration software L1 Modbus ID Computer Default 1 This entry does not apply to Serial Port 1 when a printer is selected as the port type Enter the Modbus slave ID number that this serial port will respond to 1 through 247 acceptable This entry will be disabled for Serial Port 1 if a printer is selected as the port type Ei YY Omni 2 25 Chapter 2 INFO Characters in Y refer to password levels Characters in refer to key presses TIP Use the blank lines provided next to each configuration option to write down the corresponding settings you entered in the flow computer Some of these entries may not appear on the display or in OmniCom Depending on the various configuration settings of your specific metering system only those configuration options which are applicable will be displayed Skip CRC LCR Check If you have disabled the error checking on incoming messages you m
130. igh alarm activates Transducer values approximately 10 above this entry activate the transducer fail high alarm L2 Override ee Enter the temperature value that is substituted for the live transducer value depending on the override code An displayed along side of the value indicates that the override value is substituted L2 Override Code Enter the Override Code strategy 0 Never use override code 1 Always use override code 2 Use override code on transmitter failure 3 On transmitter failures use last hour s average L1 at 4mA Enter the temperature engineering units that the transducer outputs at 4mA or 1volt or lower range limit LRV of Honeywell Smart Transmitters L1 at 20mA Enter the temperature engineering units that the transducer outputs at 20mA or 5volts or upper range limit URV of Honeywell Smart Transmitters This entry only applies to Honeywell digital transmitters connected to an H Type combo module The process variable i e temperature is filtered by the transmitter before being sent to the flow computer The time constant used depends on this entry For Temperature Transmitters enter the selected Damping Code 0 0 seconds 5 6 3 seconds 1 0 3 seconds 6 12 7 seconds 2 0 7 seconds 7 25 5 seconds 3 1 5 seconds 8 51 5 seconds 4 3 1 seconds 9 102 5 seconds Ei YY Omni 2 41 Chapter 2 Prover Temperature Setup via the Random Access Method Setup entries
131. ilable I O point numbers are allocated to each module at this time according to the type and number of each module see Chapter 2 for more information 2 5 6 Meter Station Settings Enter Y at Config Station of the Misc Setup menu to open the following entries PL Station Configured As Station Totals and Flows Defined As Define which meter runs will be included in the station flow rates and totalizers Meter data can be added or subtracted Example Entering 1 2 3 4 defines the station flows and totals as the result of Meter Runs 1 and 2 added together subtracted by the flows of Meters 3 and 4 Enter 0 for no station totalizers PL Density UO Point Number Enter the I O point number that corresponds to the station density or gravity input used as the product interface detector Digital densitometers can be corrected for temperature and pressure effects using the station pressure and temperature points Digital pulse densitometers can only be assigned UO point numbers corresponding to the 4 input channel of a B Type Combo Module or Channels 3 or 4 of an E D Type Combo Module Densitometer Tag Enter the 8 character tag name used to identify this density transducer on the LCD display Densitometer Type Enter the densitometer type 0 No density type selected 1 420mA output signal linear with API gravity units many API devices are actually designed to drive non linear API chart re
132. ion option to write down the corresponding settings you entered in the flow computer Some of these entries may not appear on the display or in OmniCom Depending on the various configuration settings of your specific metering system only those configuration options which are applicable will be displayed 2 12 User Programmable Functions Meter 1 Meter 2 Meter 3 Meter 4 PL Densitometer Type Enter the Densitometer Type 0 No density type selected 1 4 20mA output signal linear with API gravity units many API devices are actually designed to drive non linear API chart recorders they are usually linear with relative density units 4 20mA output signal linear with relative density SG units 4 20mA output signal linear with grs cc density Solartron digital pulse Sarasota digital pulse UGC digital pulse OO P h Il PL Flowing Reference Conditions This entry applies only if you selected a 4 20mA type densitometer in the previous entry Specify if the density transducer signal represents density at 0 Flowing temperature and pressure 1 Reference temperature and pressure PL Density Temp I O Point Enter the I O point number used to input the signal applied to compensate for temperature effects at the densitometer for each meter run If the densitometer has no temperature sensor fitted enter the same UO point assignment as the meter run temperature sensor PL Density Temperature Tag
133. istake Enter an UO point of 0 to cancel an incorrectly entered I O point then enter the correct number 2 10 User Programmable Functions Auxiliary Input Assignment PL Auxiliary Input 1 UO Point Number Enter the physical UO point number to which this auxiliary input is connected Auxiliary Inputs can be used to enter S amp W viscosity and other miscellaneous variables Enter the 8 character tag name used to identify this transducer on the LCD display Auxiliary Input 1 Type Enter the Auxiliary Input Type 0 RTD probes that follow the DIN curve and a 0 0385 1 RTD probes that follow the American curve and a 0 0392 2 Transducer with a 4 20mA linear output or Honeywell smart transmitter connected to an H combo module PL Auxiliary Input 2 I O Point Number Auxiliary Input 2 Tag Auxiliary Input 2 Type PL Auxiliary Input 3 I O Point Number Auxiliary Input 3 Tag Auxiliary Input 3 Type PL Auxiliary Input 4 I O Point Number Auxiliary Input 4 Tag Auxiliary Input 4 Type YY Omni 22 26 74 06 07 Volume 3c Config Meter Runs Physical UO information for up to 4 meter runs can be entered Transducers that are not assigned an I O point will not be available for display or further configuration Assigning UO Point 99 This indicates that the associated variable will be available for display and be used in all calculations but will not be obtained via a live inpu
134. its 0 Cubic meters m 1 Liters Its Prove Report Batch Report PL Number of Decimal Places for Factors Enter the number of decimal places to use for correction factors appearing on prove and batch reports 4 5 or 6 decimal places These settings correspond to the following factors CTLM CTLP CPLM CPLP CTSP CPSP CCF The density pycnometer factor remains fixed at four decimal places For strict adherence to API MPMS 12 2 default select 4 decimal places This is the recommend selection Selecting 5 decimal places causes the flow computer to perform the normal API internal rounding and truncating rules with the exception of the last round which is to 5 places Selecting 6 decimal places causes the flow computer to perform no internal rounding and truncating and rounds the final result to 6 decimal places Ei Womni 2 35 Chapter 2 Auxiliary Input Setup via the Random Access Method Setup entries require that you be in the Program Mode In the Display Mode press the Prog key The Program LED will glow green and Select Group Entry screen will appear Then press Analysis Input Enter or Analysis Input n Enter n Auxiliary Input 1 2 3 or 4 Use M V keys to scroll Note Not Valid when a RTD Probe is specified 2 36 User Programmable Functions Auxiliary Inputs Input 1 Input 2 Input 3 Input 4 Low Alarm Limits Enter the auxiliary input signal value
135. lag 2 AND NOT Flag 3 Zone 3 Flag 1 AND Flag 2 AND NOT Flag3 Zone 4 Flag 1 AND Flag 2 AND Flag 3 EI Omni 22 26 74 06 07 Volume 3c Flag 2 amp Flag 3 22 26 74 e 06 07 Configuration and Advanced Operation As each statement can have only 3 terms in it we must pre process some part of the equations The term NOT Flag 2 AND NOT Flag 3 appears in Zone 1 and 2 equations Now we assign valid point numbers to our statements and rewrite them the way they will be input First one term needs to be pre processed to simplify 1025 NOT Flag 2 AND NOT Flag 3 25 18258 amp 1826 Next the flow Zones are defined Zone 1 NOT Flag 1 AND NOT Flag 2 AND NOT Flag 3 26 18248 amp 1025 Zone 2 Flag 1 AND NOT Flag 2 AND NOT Flag 3 27 182481025 Zone 3 Flag 1 AND Flag 2 AND NOT Flag 3 28 1824 amp 18258 1826 Zone 4 Flag 1 AND Flag 2 AND Flag 3 29 1824 amp 1825 amp 1826 The program thus far looks like BOOLEAN POINT 10xx 1105 1002 1205 1003 1719 10254 1026 1824 amp 18258 amp 1826 1824 amp 1825 amp 1826 In our example each meter run valve V1 V2 V3 and V4 fails closed energizes to open A limit switch mounted on each valve indicates the fully open position SW1 SW2 SW3 and SW4 SV 125 amp A 401 IND THAT swi VALVE IS FULLY OPEN Su ENERGISE SIGNALS NUMBERS IN PARENTHESES ARE PHYSICAL I D ASSIENNENT BERS Fig 3 2 Figure Showing Four Meter Run Valve Switching
136. lculate the volume correction factor VCF Enter the thermal expansion coefficient at reference temperature as 0 000xxxx L2 F Factor Override This entry applies depending on which table is selected above Enter 0 0 if you wish the flow computer to use API 11 2 1 or 11 2 2 to calculate the compressibility factor F used in the Cpl equation Enter the compressibility factor F if you wish to override the API calculated value L2 Vapor Pressure at 100 F 37 8 C This entry applies only when GPA TP16 or TP16M is entered for table select The GPA TP16 standard specifies that the equilibrium pressure of the flowing fluid be calculated according to GPA TP15 Two equations are specified The first designed for mainly pure products such as propanes butanes and natural gasolines requires no input data other than the temperature at flowing conditions and the specific gravity at reference conditions The second improved correlation is suitable for use with more varied NGL mixes where different product mixes could have the same specific gravity but different equilibrium pressures If you wish to use the improved second method enter the vapor pressure at 100 F or 37 8 C Enter a minus number to use the normal TP15 method for propanes butanes and natural gasolines L1A Density Factor A B Density correction factor Enter 0 to select Density Factor A to correct the densitometer Enter 1 to select Density Factor B to correct the densitometer
137. ld there until the required delivery is complete The control output is then immediately set to 0 Primary Controlled Remote Setpoint Variable L1 Low Limit Enter the engineering unit value below which the primary setpoint variable is not allowed to drop while in the remote setpoint mode L1 High Limit Enter the engineering unit value above which the primary setpoint variable is not allowed to rise while in the remote setpoint mode Secondary Controlled Setpoint Variable L1 Zero Value If a secondary controlled variable is used enter the value in engineering units of the variable which will represent zero L1 Full Scale Value Enter the value in engineering units of the secondary variable at controller full scale which is usually 2 times the normal operating setpoint setting Omni 22 26 74 06 07 Volume 3c INFO The first menu Misc Configuration should always be completed first as these entries specify the number and type of input and output devices connected to the flow computer i e the menus following the Misc Configuration menu do not ask for configuration data unless a transducer has been defined Flow Computer Configuration via the Menu Selection Method It is best to use this method when programming an application for the first time as every possible option and variable will be prompted Once a computer is in operation and you become familiar with the application you
138. licable will be displayed Config Digital n Assign each physical I O point to a Modbus address of a Boolean variable There are no limitations as to what Boolean points can be assigned to physical I O points Enter 0 zero for Modbus control Assigning as Pulse Outputs Meter and Station Accumulators may be output in the form of pulses Pulse Width Pulse width is measured using 10msec ticks i e 100 1 second Pulse per Unit Pulse per unit entry can be used to provide unit conversion e g entering 4 2 pulses per barrel will give 1 pulse every 10 gallons as there are 42 gallons in a barrel The units of volume mass and energy flow are the same as is displayed on the LCD Assigning as Control Output Any internal alarm or Boolean can be output 22 26 74 e 06 07 Configuration and Advanced Operation 2 5 15 Digital UO Point Settings Enter 1 through 24 for the selected digital I O Point at Config Digital n of the Misc Setup menu to open the following password Level 1 L1 entries Digital UO 1 Remark Digital UO 2 Remark Digital UO 3 Remark Digital UO 4 Remark Digital UO 5 Remark Digital UO 6 Remark Digital UO 7 Remark Digital UO 8 Remark Digital UO 9 Remark Digital UO 10 Remark Digital UO 11 Remark Digital UO 12 Remark Assign Pulse Width Pulse Unit or Delay On Delay Off Womni 2 23 Chapter 2 Delay On Off Used
139. lure use absolute value of override SG API for this product L2 Reference Density Override This entry applies only to metric units Revision 26 depending on which table is selected above This is the density at reference conditions kg m at reference temperature It is used to calculate the volume correction factor VCF and the pressure correction factor CPL Using a Live Densitometer Signal Entering a value with a minus sign ahead of it causes the flow computer to use the live density signal to calculate the density at reference temperature Using the Product Override if the Densitometer Fails Selecting fail code 5 at the densitometer setup menu will cause the flow computer to stop using the live density signal should it fail and substitute the absolute value of the density override entry as the reference density E g Entering 750 causes the computer to ignore the override and use the live densitometer signal as long as the transducer is OK A reference density of 750 kg m will be used if the densitometer should fail L2 Reference Temperature This entry applies only to metric units Revision 26 Enter the base or reference temperature in C at which net corrected volumes represent equivalent volumes of liquid L2 Alpha Coefficient This entry applies depending on which table is selected above API 2540 Tables 24C 54C equations require you to enter a value for alpha This alpha value is used to ca
140. m and automatically switch between being the master or slave computer Important data such as meter factors and PID control settings can be continually exchanged between flow computers ensuring that at any time should a failure occur to one the other unit would be able to assume control of the PID and ticketing functions The redundancy mode requires that four digital I O ports be cross connected to sense watchdog failure modes using the following points 2714 Input master status 2864 Output Master status 2713 Input watchdog status 2863 Output of watchdog status See Technical Bulletin TB 980402 in Volume 5 L1 Next Master in Sequence Enter the slave number of the next flow computer in sequence in the peer to peer communication sequence to pass over control After the flow computer completes all of its transactions it will attempt to pass over master control of the Modbus link to this Modbus ID For maximum efficiency always start Modbus ID definitions from 1 Enter the Modbus ID of this flow computer if there are no other peers in sequence on the communication link Enter 0 to disable the peer to peer feature and use Serial Port 2 as a standard Modbus slave port L1 Last Master in Sequence ID Enter the slave number of the last OMNI the highest Modbus ID number in the peer to peer communication sequence This is required for error recovery Should this flow computer be unable to hand over control to the next master in se
141. mable Functions 2 5 9 PID Control Settings Enter 1 2 3 or 4 at Config PID n of the Misc Setup menu to open the following entries Loop 1 Loop 2 Loop 3 Loop 4 PL Assign Primary Variable Enter the database index number of the primary variable in the PID loop see the sidebar Remarks Enter a remark in this 16 character field to identify the function of each variable assignment PL Primary Action F R Enter F forward action if the value of the primary variable increases as the controller output increases Enter R reverse action if the value of the primary variable decreases as the controller output increases PL Remote Setpoint I O Point Enter the I O point number that the remote set point analog signal is connected to 01 24 Assign this point to 99 in cases where the set point will be downloaded via a communication port Enter 0 if you will not be using a remote setpoint PL Assign Secondary Variable Enter the database index number of the secondary variable in the PID loop see the sidebar Remarks Enter a remark in this 16 character field to identify the function of each variable assignment PL Secondary Action F R Enter F forward action if the value of the primary variable increases as the controller output increases Enter R reverse action if the value of the primary variable decreases as the controller output increases PL Error Select L H This entry de
142. mary Integral Factor Enter a value between 0 0 and 40 00 for the Primary Integral Factor Repeats Min 1 Integral Factor gt the reciprocal of the reset period L1 Secondary Gain Factor Enter a value between 0 01 to 99 99 for the Secondary Gain Factor Gain 1 Proportional Band The actual controller gain factor used when controlling the secondary variable is the product of this entry and the Primary Gain Factor Tune the primary control variable first and then use this entry to adjust for stable control of the secondary variable L1 Secondary Integral Factor Enter a value between 0 and 40 00 for the Secondary Integral Factor Repeats Min 1 Integral Factor gt the reciprocal of the reset period 2 51 Ei Womni Chapter 2 INFO The first menu Misc Configuration should always be completed first as these entries specify the number and type of input and output devices connected to the flow computer i e the menus following the Misc Configuration menu do not ask for configuration data unless a transducer has been defined PID Startup Stop and Shutdown Ramp Command Points These have been added to eliminate the need to manipulate the PID permissives directly Using these command points greatly simplifies operation of the PID ramping functions See database points 1727 1730 1788 1791 1792 1795 respectively 2 52 User Programmable Functions Loop 1 Loop 2 Loop 3 Loop 4 L1 Deadb
143. mately 10 above this entry activate the transducer fail high alarm L2 Override Enter the gravity density value that is substituted for the live transducer value depending on the override code An displayed along side of the value indicates that the override value is substituted L2 Override Code Enter the Override Code strategy 0 Never use override code 1 Always use override code 2 Use override code on transmitter failure 3 On transmitter failures use last hour s average 4 On transmitter failure use station transducer value 5 On transmitter failure use absolute value of override SG API of the running product L1 at 4 mA These entries apply if an analog gravitometer or densitometer is specified during the Config Meter Run in Misc Setup Engineering units that the transmitter outputs at 4mA or 1volt or lower range limit LRV of Honeywell Smart Transmitters DI Womni 22 26 74 06 07 Volume 3c Meter Specific Gravity Density Setup via the Random Access Method Setup entries require that you be in the Program Mode In the Display Mode press the Prog key The Program LED will glow green and the Select Group Entry screen will appear Then enter the key press sequence that corresponds to the options you want to configure Specific Gravity API To access these settings press S G API Enter or S G API Meter n Enter or Meter n S G API Enter Density T
144. n press Enter With the cursor blinking on Password Maint press Enter Enter the Privileged Level Password up to 6 Characters and press Enter 5 The Level 1 1A and Level 2 passwords can now be viewed and changed if required Scroll down to access each of the Modbus serial port Level A passwords These are labeled Serial 1 if Modbus Protocol is selected Serial 2 Serial 3 and Serial A corresponding to the physical port numbering for Modbus Ports 1 2 3 and 4 kw ech KE 2 3 Getting Help Context sensitive help is available for most data entries Help is summoned by pressing the Display Enter key twice Help key with the cursor on the data field in question Help screens are frequently more than 1 full screen so always use the A V keys to scroll in case there is more Press Prog or Enter once to exit the help system and return to your original screen 2 4 Program Inhibit Switch A Program Inhibit Switch mounted behind the front panel prevents unauthorized changing of data when in the Inhibit position Most data can be viewed while the switch is in the program inhibit position but any attempt to alter data will be ignored and cause PROGRAM LOCKOUT to be displayed on the bottom line of the LCD display The inner enclosure of the flow computer can be locked or sealed within the outer enclosure blocking access to the Program Inhibit Switch ct RESET SWITC
145. ncel Ack Input Output Help a le Space yY E Display Clear a JU J Enter Fig 3 3 Keypad Layout A through Z Keys 3 16 Omni 22 26 74 06 07 Volume 3c Configuration and Advanced Operation Example You wish to recall User Display 1 by pressing Gross Meter 1 select the key sequence A L O as shown below USER DISPLAY 1 Key Press ALO Var 1 Tag Var 1 Index Var 1 Dec Continue configuring User Display 1 by entering the description tag index number and decimal position required for each variable Press Gross Meter 1 Index for Meter 1 Flo Rate Display XXXX XX USER DISPLAY 1 Press ALO 1 Tag M1 MSCF 1 Index 7101 1 Dec 2 2 Tag M1 MMSCF 2 Index 5101 2 Dec 2 Description Tag Index for Meter 1 Batch Barrels Display XXXX XX 3 Tag M1 PRSET 3 Index 5116 Index for Meter 1 3 Dec 2 Description Tag Preset Count 4 Tag M1 MFACT 4 Index 5114 4 Dec 4 4 Tag _ Display XXXX XX Description Tag Index for Meter 1 Batch F W A M F Display XXXX XX 22 26 74 06 07 Y Omni 3 17 Chapter 3 3 18 User Programmable Functions In the preceding example User Display 1 is used to display Meter Run 1 Variable 1 Flow rate in MSCF per Hour Variable 2 Accumulated Batch MSCF Variable 3 Meter Factor for the Batch Variable 4 Not Used The screen is recalled by pressing Gross Meter 1 Enter and displays
146. o access these settings press Density Enter or Density Meter n Enter or Meter n Density Enter Digital Densitometers To access these settings press Factor Density Meter n Enter or Density Factor Meter n Enter n represents the meter run 1 2 3 or 4 Note Digital densitometers can only be configured via the Random Access Method INFO Densitometer constants are usually ona calibration certificate supplied by the densitometer manufacturer Usually they are based on SI or metric units For US customary applications you must ensure that the constants entered are based on gr cc F and PSIG Constants are always displayed using scientific notation e g Ko 1 490205E 00 gr cc To enter Ko press Clear and press 1 490205 Alpha Shift E 00 Enter 22 26 74 e 06 07 Configuration and Advanced Operation Station Meter 1 Meter 2 Meter 3 Meter 4 L1 at 20 mA These entries apply if an analog gravitometer or densitometer is specified during the Config Meter Bun in Misc Setup Engineering units that the transmitter outputs at 20mA or 5 Volts or upper range limit URV of Honeywell Smart Transmitters Digital Densitometers The following entries are required if a digital densitometer is specified during the Config Meter Run in the Misc Setup menu There are three selections which refer to digital densitometers 4 Solartron 5
147. of each digital to analog output L1 Analog Output 2 L1 Remark L1 Analog Output 3 L1 Remark L1 Analog Output 4 L1 Remark L1 Analog Output 5 L1 Remark L1 Analog Output 6 L1 Remark L1 Analog Output 7 L1 Remark L1 Analog Output 8 L1 Remark L1 Analog Output 9 L1 Remark L1 Analog Output 10 L1 Remark L1 Analog Output 11 L1 Remark L1 Analog Output 12 L1 Remark Ei Womni 2 15 Chapter 2 2 16 User Programmable Functions 2 5 11 Front Panel Counter Settings Enter Y at Front Pnl Counters of the Misc Setup menu to open the following entries Counter A Counter B Counter C L1 Assign Front Panel Counter Enter the database index number of the accumulator variable that will be output to this electromechanical counter The unit of measure is the same as that shown on the LCD for the totalizer i e barrels klbs m etc The maximum count rate is limited to 10 counts per second Count rates higher than 10 pulses per second will cause the computer to remember how many counts did not get output and continue to output after the flow stops until all buffered counts are output L1 Remarks Enter a remark in this 16 character field which identifies and documents the function of each front panel counter L1 Pulses Unit Enter the number of pulses per unit volume mass energy Omni 22 26 74 06 07 Volume 3c Configuration
148. orresponding settings you entered in the flow computer Common Printer Control Codes Epson IBM amp Compatible Condensed Mode OF Cancel Condensed 12 OKI Data Models Condensed Mode 1D Cancel Condensed 1E HP Laser Jet I amp Compatible Condensed 1B266B3253 Cancel Cond 1B266B3053 2 70 User Programmable Functions L1 Automatic Hourly Batch Select Enter Y to automatically cause a batch end every hour on the hour If customized reports are selected a batch end report will be printed If default reports are selected no batch end report will be printed L1 Automatic Weekly Batch Select Enter a number 1 through 7 to automatically print a batch end report in addition to a daily report on a specific day of the week O No batch end 1 Monday 2 Tuesday etc L1 Automatic Monthly Batch Select Enter a number 1 through 31 to automatically print a batch end report in place of a daily report on a specific day of the month O No batch end L1 Print Priority Enter 0 when the computer is connected to a dedicated printer If several computers are sharing a common printer one computer must be designated as the master and must be assigned the number 1 The remaining computers must each be assigned a different Print Priority number between 2 and 12 L1 Number of Nulls For slow printers without an input buffer a number of null characters can be sent after each carriage return or line feed A
149. osition and enter the new setting L1 OMNI Date Enter Current Date using the correct method mm dd yy or dd mm yy To change only the month day or year move cursor to the respective position and enter the new setting Time and Date Settings L1 Select Date Format Type Select date format required by entering Y or N Y month day year N day month year 2 33 Chapter 2 Meter Station Setup via the Random Access Method Setup entries require that you be in the Program Mode In the Display Mode press the Prog key The Program LED will glow green and Select Group Entry screen will appear Then press Meter Enter and use N V keys to scroll Meter Station Run Switching Flow Rate Thresholds The OMNI flow computer has 3 Boolean flags which are set or reset depending on the station flow rate Run Switching Flag 1 at Modbus database point 1824 Run Switching Flag 2 at Modbus database point 1825 Run Switching Flag 3 at Modbus database point 1826 Each of these flags has a low threshold and high threshold flow rate Each flag is set when the station flow rate exceeds the corresponding high threshold value These flags reset when the station flow rate falls below the respective low threshold limit See Chapter 3 for more information on how to include these flags in Boolean statements to automatically switch meter runs depending on flow ra
150. over in use 0 Unidirectional Pipe Prover 1 Bi directional Pipe Prover 2 Unidirectional Compact Prover 3 Bi directional Small Volume Prover 4 Master Meter 5 Two Series Bi directional Pipe Prover Select the Unidirectional Compact 2 if you are using a Brooks Compact Prover Select the Master Meter Method to compare meter 1 2 or 3 against the master meter Meter 4 is always the master meter For Double Chronometry Proving use type 2 or 3 L1 Prover Volume This entry does not apply when the prover type selected is a Uni Compact Enter the water draw volume of the prover at base temperature and pressure Certain models of compact provers have different water draws depending on whether the meters are upstream or downstream This entry represents the round trip volume for bi directional provers and the downstream volume for compact provers When using the Master Meter Method enter the minimum volume that must flow through the master meter Meter 4 for each prove run L2 Number of Passes per Run to Average This entry applies to Unidirectional and Bi directional compact provers only Enter the number of single passes that will be averaged to make each run when using the pulse interpolation method Valid entries are 1 through 25 A pass is round trip when using a bi directional prover l E a Omni 2 53 Chapter 2 User Programmable Functions L1 Linear Thermal Expansion Coeff of Switch Rod INFO Char
151. ow Rate 10 L1A Meter Factor 11 L1A Flow Rate 11 L1A Meter Factor 12 L1A Flow Rate 12 Meter 2 Meter 3 Meter 4 SS Womni 22 26 74 e 06 07 Volume 3c Configuration and Advanced Operation 2 15 Configuring Batches INFO Characters in Note See Chapter 3 Computer Batching Operations in Volume 2 for refer to password levels information on configuring your flow computer for batches TIP Use the blank lines provided next to each configuration option to write down the corresponding 2 15 1 Batch Preset Setup settings you entered in the flow computer SETUP MENU Batch Preset Setup Batch Sequence Factor Setup L1 Adjust 1 Batch Size Enter Amount to Adjust Enter a positive or a negative number to adjust the size of the current running batch Size Now Displays the current batch size L1 Batch Sequence Meter 1 Current Batch Each Meter in the Common Batch Stack N entry can be setup with a batch sequence of up to 6 different batches If the Batch Stack is Y Common on all meters then 16 batch sequences can be entered ID Customer Batch ID number Running Product Current running product Size BBL M3 Current Batch size M1 1 l Ins D Del Batch Meter 1 l Insert a new batch into the batch sequence or D delete a batch sequence ID Installing or Deleting Batch ID number Product to Run Select the product to be setup in the new batch seq
152. p correction factor for effects of temperature on steel at the prover For Uni and Bi directional Provers an 1 T T toe Where T average prover temperature in F Tp average base prover temperature in F teoet Coefficient of cubical expansion per F of the prover tube For Small Volume Compact Provers Crsp l t coef l h T T teoer e Where T average prover temperature in F Ti average prover switch rod temperature in F To average base prover temperature in F Loost square coefficient of expansion per F of the prover tube linear coefficient of cubical expansion per F of the prover Leoet i 1 switch rod A 22 744 06 07 Y Omni 4 15 Chapter 4 Flow Equations and Algorithms for US Customary Units Revision 22 74 Cpsp CTLP CPLP CTLM CPLM 4 16 correction factor for effects of pressure on steel at the prover P P xD 1 Ext Where P internal prover pressure in PSlg Pp base prover pressure in PSIg D internal prover tube diameter in inches E modulus of elasticity for prover tube wall thickness of prover tube in inches correction factor for effects of temperature on liquid volume correction factor at the prover volume correction factor Vcr where the actual temperature Tq is replaced by the average temperature during the prove at the prover see 5 2 2 this chapter correction factor for effects of p
153. p submenu press the Prog key to return to the Select Group Entry screen Proceed as described in this manual for each setup option 2 48 User Programmable Functions 2 11 Configuring Meter Relative Density API Relative Density 2 11 1 Accessing the Gravity Density Setup Submenu Applying the Menu Selection Method see sidebar in the Select Group Entry screen Program Mode press Setup Enter and a menu similar to the following will be displayed SETUP MENU Temperature Setup Pressure Setup Grav Density Setup _ Use the J up down arrow keys to move the cursor to Grav Density Setup and press Enter to access the submenu 2 11 2 Meter Relative Density Density Settings Relative Density API Gravity or Density Station Meter 1 Meter 2 Meter 3 Meter 4 L1A Corr Factor These entries apply if an analog gravitometer or densitometer is specified during the Config Meter Run in Misc Setup They are not available when using API or Specific Gravity gravitometers Enter the Pycnometer Density Correction Factor Limit 0 8 to 1 2 Usually very close to 1 0000 Low Alarm Limit Enter the gravity density below which the prover densitometer low alarm activates Transducer values approximately 5 below this entry activate the transducer fail low alarm High Alarm Limit Enter the gravity density above which the prover densitometer high alarm activates Transducer values approxi
154. pulses accumulated between detectors switches each pulse is 200 nanoseconds Tdimp timer pulses accumulated between first flow pulse after each detector switches each pulse is 200 nanoseconds Omni 5 11 Chapter 5 Flow Equations and Algorithms for SI Metric Units Revision 26 74 5 4 3 Meter Factors for Provers Prove Meter Factor Pr PV i Cisr Leer i Crp Corp F D G Crum Lo PM Where PMF prove meter factor dimensionless PVp base prover volume Pf number of flow pulses during the prove Ctsp correction factor for effects of temperature on steel at the prover For Uni and Bi directional Provers Cep 1 Bling Th x toer Where T average prover temperature in C Tp average base prover temperature in C teoet coefficient of cubical expansion per C of the prover tube For Small Volume Compact Provers Crap HT eina l Lia e Where T average prover temperature in C al Il average prover switch rod temperature in C Tp average base prover temperature in C Loo square coefficient of expansion per C of the prover tube tooet linear coefficient of cubical expansion per C of the prover switch rod a Ei 5 12 Omni 26 744 06 07 Volume 3c 26 74 e 06 07 Cpsp Configuration and Advanced Operation correction factor for effects of pressure on steel at the prover 14 P P xD Ext Where P internal prover pressure in kPag
155. quence see previous entry it will attempt to establish communications with a Modbus slave with a higher Modbus ID It will keep trying until the ID number exceeds this entry At that point the flow computer will start at Modbus ID 1 Enter the Modbus ID of this flow computer if it is the only master on the link L1 Retry Timer Should any slave device fail to respond to a communication request the master device will retry to establish communications several times Enter the number of 50 millisecond ticks that the flow computer should wait for a response from the slave device To ensure fast recovery from communication failures set this entry to as low a number as possible Enter 3 for peer to peer links involving only OMNI flow computers Other Modbus devices may require more time to respond 22 26 74 e 06 07 Volume 3c INFO Characters in Y refer to password levels Characters in refer to key presses INFO The OMNI Flow Computer determines what Modbus function code and what data type is involved by the Modbus index number of the data within the OMNI s database The Source Index determines the data type for a write The Destination Index determines the data type for a read Function codes used are 01 Read Multiple Booleans 15 Write Multiple Booleans 03 Read Multiple Variables 16 Write Multiple Variables 22 26 74 e 06 07 Configuration and Advanced Operation Transaction 1
156. r Pressure Transmitters enter the selected Damping Code 0 0 seconds 5 2 seconds 1 0 16 seconds 6 4seconds 2 0 32 seconds 7 8 seconds 3 0 48 seconds 8 16 seconds 4 1 seconds 9 32 seconds L1 Plenum Pressure at 4mA The plenum pressure applies only to Brooks compact provers Enter the engineering units that the transmitter outputs at 4mA or 1volt or lower range limit LRV of Honeywell Smart Transmitters L1 Plenum Pressure at 20mA The plenum pressure applies only to Brooks compact provers Enter the engineering units that the transmitter outputs at 20mA or 5volts or upper range limit URV of Honeywell Smart Transmitters L1 Plenum Pressure Damping Code This entry only applies to Honeywell digital transmitters connected to an H Type combo module The process variable i e pressure is filtered by the transmitter before being sent to the flow computer The time constant used depends on this entry For Pressure Transmitters enter the selected Damping Code 0 0 seconds 5 2 seconds 1 0 16 seconds 6 4seconds 2 0 32 seconds 7 8 seconds 3 0 48 seconds 8 16 seconds 4 1 seconds 9 32 seconds 22 26 74 e 06 07 Omni Volume 3c INFO Characters in Y refer to password levels TIP Use the blank lines provided next to each configuration option to write down the corresponding settings you entered in the flow computer Prover Density Pressure Setup via the Random Acce
157. r values approximately 5 below this entry fail to low High Alarm Limit ee ee EE Enter the temperature above which the flowmeter high alarm activates Transducer values approximately 5 above this entry fail to high L2 Override Enter the temperature value that is substituted for the live transducer value depending on the override code An displayed along side of the value indicates that the override value is substituted L2 Override Code Enter the Override Code strategy 0 Never use override code 1 Always use override code 2 Use override code on transmitter failure 3 On transmitter failures use last hour s average L1 at 4mA a Enter the temperature engineering units that the transmitter outputs at 4mA or 1volt or lower range limit LRV of Honeywell Smart Transmitters L1 at 20mA Enter the temperature engineering units that the transmitter outputs at 20mA or 5 Volts or upper range limit URV of Honeywell Smart Transmitters 22 26 74 e 06 07 Volume 3c INFO Characters in Y refer to password levels Characters in refer to key presses TIP Use the blank lines provided next to each configuration option to write down the corresponding settings you entered in the flow computer Some of these entries may not appear on the display or in OmniCom Depending on the various configuration settings of your specific metering system only those configuration options which are applicabl
158. ravity Calculated from Live Digital Densitometer Output Frequency Flowing Density o for Crude Oil and Refined Products Pt Po x Vor x CpL Where pt fluid density at flowing conditions actual temperature and pressure in gm cc pb fluid density at base conditions standard reference temperature and pressure in gm cc relative density at 60 F and equilibrium pressure multiplied by the weight in pounds of one cubic foot water at 60 F and 14 696 pounds per square inch absolute PSla Ver volume correction factor ASTM D1250 Cp correction factor for pressure on liquid E Omni 22 74 07 07 Volume 3c Density and Relative Density Values Determined from Densitometer and Gravitometer Frequency Signals The equations used to determine the density and relative density via density transducers are provided by the respective manufacturers Densitometer Calibration Constants In many cases the densitometer constants supplied by the manufacturers are based on SI or metric units You must ensure that the constants entered are based on grams cc F and PSlg Contact the densitometer manufacturer or OMNI if you require assistance Note Do must be expressed in pounds per cubic foot gm cc 22 74 e 06 07 Configuration and Advanced Operation 4 3 2 Density and Relative Density Specific Gravity Calculated from Live Digital Densitometer Output Frequency The calculations express
159. rbine positive displacement and mass flowmeters are as follows 5 1 1 Volumetric Flow Rate at Flowing Conditions Qy m hr Suz Qv v Renae x 3600 5 1 2 Volumetric Flow Rate at Base Conditions Qp m hr Ge nay GSV vav Vor x Cp x Me 5 1 3 Mass Flow Rate Qm Ton hr g E GH lt Py M m 1000 xX O _ Viesv la b Qn 1000 26 74 06 07 Womni 5 1 Chapter 5 Flow Equations and Algorithms for SI Metric Units Revision 26 74 5 1 4 Qviy Qbiasv Qm SHz KF nom MF VCF CPL 5 2 Nomenclature gross indicated volumetric flow rate at flowing conditions in cubic meters per hour m hr gross standard volumetric flow rate at base conditions in cubic meters per hour m hr mass flow rate at flowing conditions for gas turbine flowmeters in ton per hour ton hr total number of pulses emitted from the flowmeter pulse train per second nominal K factor in pulses per cubic meter fHz m supplied by the flow transmitter manufacturer meter factor in use dimensionless volume correction factor dimensionless see 6 2 2 this chapter correction factor for pressure on liquid dimensionless see 6 2 3 this chapter fluid live density at flowing conditions actual temperature and pressure in kilograms per cubic meter Kgs m see 6 3 this chapter calculated reference density at base conditions standard or reference
160. re This entry is not applicable to Master Meter proving Enter the Base Temperature in F or C at which the prover was water drawn This entry is used to calculate CTSP L2 Stability Check Sample Time Enter the Stability Check Sample Time in seconds used to calculate the rate of change of temperature and flow rate at the prover or master meter The prove sequence will not start until the temperature and flow rate are stable L2 Sample Time Temperature Change ATemp Enter the temperature change allowed during the stability sample time see previous entry The change in temperature per sample period must be less than this value for the temperature to be considered stable enough to start a prove L2 Sample Time Flow Rate Change AFlow Enter the change in flow rate allowed during the stability sample time see previous two entries The change in flow rate per sample period must be less than this value before the flow rate is considered to be stable enough to start a prove L2 Prover to Meter Temperature Deviation Range Enter the prover to meter temperature range C or F allowable after the temperature and flow rate have stabilized The temperature at the meter and the prover must be within this limit or the prove sequence attempt will be aborted L2 Prove Run Meter Factor Counts Repeatability Enter for the run repeatability calculation based on 0 Run Counts 1 Run Calculated Meter Factor 2 Count Old API 3
161. re than one meter run PL Temperature Transducer Tag Enter the 8 character tag name used to identify this temperature transducer on the LCD display PL Temperature Transducer Type Enter the Temperature Transmitter Type 0 RTD probes that follow the DIN curve and a 0 0385 1 RTD probes that follow the American curve and a 0 0392 2 Honeywell smart transmitter connected to an H combo module or a transducer with a 4 20mA linear output PL Pressure I O Point Enter the I O point number used to input the pressure signal for each meter run Duplicate I O assignments are allowed when a sensor is shared by more than one meter run Pressure Transducer Tag Enter the 8 character tag name used to identify this pressure transducer on the LCD display PL Density UO Point Enter the I O point number used to input the density signal for each meter run Duplicate I O assignments are allowed when a densitometer is shared by more than one meter run Digital pulse densitometers can only be assigned UO point numbers corresponding to the AN input channel of a B Type Combo Module or the 3 and AN input channels of an E D Combo Module PL Densitometer Tag Enter the 8 character tag name used to identify this density transducer on the LCD display 2 11 Chapter 2 INFO Characters in refer to password levels Characters in refer to key presses TIP Use the blank lines provided next to each configurat
162. ressure on liquid at the prover correction factor for pressure on liquid Cp where the flowing pressure P is replaced by average pressure during the prove at the prover see 5 2 3 this chapter correction factor for effects of temperature on liquid volume correction factor at the flowmeter volume correction factor Vcr where the actual temperature Ta is replaced by the average temperature during the prove at the flowmeter see 5 2 2 this chapter correction factor for effects of pressure on liquid at the flowmeter correction factor for pressure on liquid Ce where the flowing pressure P is replaced by average pressure during the prove at the flowmeter see 5 2 3 this chapter E Omni 22 74 07 07 Volume 3c Configuration and Advanced Operation Prove Meter Factor at Base Prove Flow Rate MN ST DM PM We 7 We j Where meter factor at base prove flow rate Mr PMF prove meter factor MFBcPOp meter factor interpolated from base flowmeter factor curve using base prove flow rate MFecray meter factor interpolated from base flowmeter factor curve using actual prove flow rate Meter Factor Offset from Base Curve Obtained from Proving Mr Meo WK T MF cpa Where MFpo Meter factor offset from base meter factor curve obtained from proving Mr meter factor at base prove flow rate MFecra meter factor interpolated from base flowmeter factor curve using base prove flow ra
163. ription ADD Add the two variables or constants SUBTRACT Subtract the RH variable or constant from LH MULTIPLY R Multiply the two variables or constants DIVIDE Divide the two variables or constants CONSTANT The number following is interpreted as a constant POWER amp Raise the LH variable to the power of the RH ABSOLUTE Use the abs unsigned value of variable following EQUAL Make the variable on left equal to the expression IF STATEMENT Compares the variable to another What if GOTO STATEMENT G Go to a different variable MOVE RANGE Move statement or result to another variable EXACT COMPARE Compare a value with or equal to TOTALIZE Used to create custom totalizers where Remainders need to be carried into the custom totalizer in the next calculation cycle INDIRECT REFERENCE Use the contents of the point following to Determine the address of the target data base point WRITE ASCII STRING S Write the ASCII string data contained between the quotes to the address to the left of the sign RISING EDGE Rising Edge Operator eg 7501 FALLING EDGE Falling Edge Operator eg 7501 ONE SHOT One Shot Operator eg 7505 RANGE CHECKER lt Ranger Checking operator Omni 22 26 74 06 07 Volume 3c Configuration and Advanced Operation To program the user variables proceed as follows From the Display Mode press Prog Setup Enter Enter and the following menu will be displayed Misc Setup
164. rol Loop 1 2 3 or 4 Use N V keys to scroll 22 26 74 e 06 07 Configuration and Advanced Operation 2 12 Configuring PID Control Outputs 2 12 1 Accessing the PID Control Setup Submenu Applying the Menu Selection Method see sidebar in the Select Group Entry screen Program Mode press Setup Enter and a menu similar to the following will be displayed kkk Kk k SETUP MENU Pressure Setup Grav Density Setup PID Control Setup Use the Tt up down arrow keys to move the cursor to PID Control Setup and press Enter to access the submenu 2 12 2 PID Control Output Settings Loop 1 Loop 2 Loop 3 Loop 4 Operating Mode Manual Valve Open Y N Enter Y to adjust the valve open and adjust using the W keys Enter N to change to AUTO mode Local Setpoint Y N Enter Y to use a local set point and adjust using the pit keys Enter N for Remote set point mode Secondary Setpoint Value Enter the value in engineering units for the set point of the secondary variable The primary variable will be the controlled variable until the secondary variable reaches this set point The secondary variable will not be allowed to drop below or rise above this set point depending on the Error Select entry in the Config PID menu Tuning Adjustments L1 Primary Gain Factor Enter a value between 0 01 to 99 99 for the Primary Gain Factor Gain 1 Proportional Band L1 Pri
165. rovers PQ ue D S _ Dr 3600 U B K F hom Gross Flow Rate for Small Volume Compact Provers POeuet PV v x 3600 SVP Tdyol 4 5 2 Prove Flow Rate using Pulse Interpolation Method Td Prove Interpoated Counts Integer Counts Jha fmp Ei Womni 4 13 Chapter 4 Flow Equations and Algorithms for US Customary Units Revision 22 74 4 5 3 PQviuyp PQvsvp PVb Pfuz WS Tdvol 4 14 Nomenclature prove gross flow rate at flowing conditions for uni and bi directional provers in barrels per hour Bbls hr prove gross flow rate at flowing conditions for small volume compact provers in barrels per hour Bbls hr base prover volume at 60 F and 0 PSlg in barrels Bbls total number of flow pulses per second during the prove nominal K factor in pulses per barrel f4z Bbl supplied by the flow transmitter manufacturer timer pulses accumulated between detectors switches each pulse is 200 nanoseconds timer pulses accumulated between first flow pulse after each detector switches each pulse is 200 nanoseconds E Omni 22 74 07 07 Volume 3c Configuration and Advanced Operation 4 5 4 Meter Factors for Provers Prove Meter Factor Pr PV x em X Opss X Chp XCO DM b PF PSP TLP PLP xC xC F TLM PLM Where PMfF prove meter factor dimensionless PVp base prover volume at 60 F and 0 PSig in barrels Bbls Pf number of flow pulses during the prove Cts
166. s and re write them the way they will be input 1030 NOT SW3 AND NOT SW4 30 10138 1014 1031 NOT SW1 AND NOT SW2 31 10118 amp 1012 The final Equations to determine the state of V1 V2 V3 and V4 are as follows V1 NOT SW2 AND NOT SW3 AND NOT SW4 OR Zone 1 23 1012 amp 1030 1026 V2 NOT SW1 AND NOT SW3 AND NOT SW4 OR Zone 2 33 1011 amp 1030 1027 V3 NOT SW1 AND NOT SW2 AND NOT SW4 OR Zone 3 34 10318 amp 1014 1028 V4 NOT SW1 AND NOT SW2 AND NOT SW3 OR Zone 4 35 10318 amp 1013 1029 The computer evaluates each expression from left to right so the order of the variables in the above statements is critical The logic requires that the OR variable comes last EI Omni 22 26 74 06 07 Volume 3c Configuration and Advanced Operation The final program consists of 11 statements BOOLEAN POINT 10xx 1825 amp 1826 18248 amp 1025 182481025 1824 amp 18258 amp 1826 1824 amp 1825 amp 1826 1013 amp 1014 1011 amp 1012 1012 amp 1030 1026 1011 amp 1030 1027 1031 amp 1014 1028 10318 amp 10134 1029 The only thing left to do now is assign Booleans 1032 1033 1034 and 1035 to the appropriate digital I O points which control V1 V2 V3 and V4 Here is a summary of all of the digital I O as assigned Valve 1 Fully Open Switch Valve 2 Fully Open Switch Valve 3 Fully Open Switch Valve 4 Fully Open Switch Valve 1 Actuator Valve 2 Actuator Valve 3 Actuator Valve 4 Actuator INFO A
167. s of Liquids The flow rate equations for flowmeters require determining the following densities and other properties Flowing Density pf for Crude Oil and Refined Products Density of Ethane Propane and Methane Mixes Density and Relative Density Specific Gravity Calculated from Live Digital Densitometer Output Frequency 5 3 1 Flowing Density o for Crude Oil and Refined Products Pt Po x Vor x Get Where pt fluid density at flowing conditions actual temperature and pressure in kilograms per cubic meter Kgs m pb fluid density at base conditions standard reference temperature and pressure in kilograms per cubic meter Kgs m density at 15 C and equilibrium pressure Ver volume correction factor ASTM D1250 CPL correction factor for pressure on liquid 5 3 2 Density of Ethane Propane and C3 Mixes The density of these mixes at flowing temperature and pressure is calculated from a computer algorithm developed by Phillips Petroleum August 1992 The algorithm was based on data published in GPA TP1 TP2 and TP5 5 6 Omni 26 74 06 07 Volume 3c Density and Relative Density Values Determined from Densitometer and Gravitometer Frequency Signals The equations used to determine the density and relative density via density transducers are provided by the respective manufacturers Densitometer Calibration Constants In many cases the densitometer constants supplied by the
168. so Butane n Butane 664 34 687 52 706 30 n Heptane n Octane n Nonane 7219 721 19 n Decane 7342 733 48 Propylene figures are derived from API 11 3 3 2 INFO API 2540 Tables 23A or 23B US or 53A or 53B metric are also automatically used when applicable Tables 24A and 53A apply to Generalized Crude Oils SG range 1 076 6110 Dens range 1075 610 4 Tables 24B and 53B apply to Generalized Products SG range 1 076 6535 Dens range 1075 652 8 GPA TP16 and TP16M apply to LPG NGL Products SG range 637 495 on Version 20 and 636 4 494 5 on Version 24 of the OMNI These calculation methods use API Chapter 11 2 1 or 11 2 2 and 11 2 1M or 11 2 2M to calculate the pressure correction factor CPL 2 62 Product 4 L1 Name L1 Table Select L2 API Relative Density Gravity Override L2 Relative Density SG Override L2 Reference Density Override L2 Reference Temperature L2 Alpha Coefficient L2 F Factor Override L2 Vapor Pressure at 100 F 37 8 C L1A Density Factor A B Meter 1 L1A Date of Meter Factor Curve L1A Meter Factor 1 L1A Flow Rate 1 L1A Meter Factor 2 L1A Flow Rate 2 L1A Meter Factor 3 L1A Flow Rate 3 L1A Meter Factor 4 L1A Flow Rate 4 L1A Meter Factor 5 L1A Flow Rate 5 L1A Meter Factor 6 L1A Flow Rate 6 L1A Meter Factor 7 L1A Flow Rate 7 L1A Meter Factor 8 L1A Flow Rate 8 L1A Meter Factor 9 L1A
169. ss Method To access these settings in the Program Mode press Prove Density Press Enter INFO The Density Pressure sensor is used to compensate for pressure effects which effect the periodic time of oscillation of the densitometer It is also used when desired to calculate the density of the liquid at the densitometer to equilibrium pressure using API 2540 MPMS 11 2 1 or 11 2 2 Note Not Valid when a RTD Probe is specified 22 26 74 e 06 07 Configuration and Advanced Operation 2 10 5 Prover Density Pressure Settings Inlet Outlet Low Alarm Limit Enter the pressure below which the prover densitometer low alarm activates Transducer values approximately 5 below this entry activate the transducer fail low alarm High Alarm Limit Enter the pressure above which the prover densitometer high alarm activates Transducer values approximately 10 above this entry activate the transducer fail high alarm L2 Override Enter the pressure value that is substituted for the live transducer value depending on the override code An displayed along side of the value indicates that the override value is substituted L2 Override Code Enter the Override Code strategy 0 Never use override code 1 Always use override code 2 Use override code on transmitter failure 3 On transmitter failures use last hour s average L1 at 4mA Enter the pressure engineering units that the transducer outputs a
170. st data of one type to another i e change a floating point variable to an integer type so that a PLC or DCS system can make use of it E Omni 22 26 74 06 07 Volume 3c 22 26 74 e 06 07 Configuration and Advanced Operation 1 22 User Display Setups The user may specify eight key press combinations which recall display screens Each user display screen can show four variables each with a descriptive tag defined by the user 1 23 User Report Templates Using OmniCom the user can generate custom report templates or edit existing templates These are uploaded into the flow computer Custom templates for the snapshot batch end daily and prove reports can be defined 1 24 Serial Communication Links Up to six serial data links are available for communications with other devices such as printers SCADA systems PLC s and other OMNI Flow Computers Ports communicate using a superset of the Modbus protocol ASCII or RTU Printer data is ASCII data Baud rate has been increased to 57600 on all serial ports 1 25 Peer to Peer Communications OMNI flow computers can be user configured to communicate with each other as equal peers Groups of data variables can be exchanged or broadcast between other flow computers Multiple flow computers can share resources such as a PLC 1 26 Archive Data Two types of data archiving are possible in the flow computer 1 Formatted ASCII text using custom report templates 2 Raw Data
171. t hy PRODUCT 4 PRODUCT INTERFACE AUXILIARY INPUTS DETECTION Fig 1 1 Typical Configuration Using Helical Turbine Positive Displacement Flowmeters 22 26 74 06 07 Omni 1 1 Chapter 1 Overview of Firmware Revision 22 74 26 74 1 2 Product Configuration Parallel runs measuring the same product or independent runs with different products 1 3 Configurable Sensors per Meter Run Meter Pulses meter temperature and pressure meter density density temperature and pressure 1 4 Configurable Sensors per Prover Prover inlet and outlet temperature and pressure prover densitometer any type analog or digital pulse type such as Solartron Sarasota or UGC 1 5 Temperature Each temperature sensor can be individually selected to be a 4 20mA 4 wire DIN curve RTD or 4 wire American curve RTD 1 6 Densitometers Can be configured for any combination or mix of individual or shared densitometers of any type analog or digital pulse type such as Solartron Sarasota or UGC The maximum number that can be connected is five Each analog density can be specified as flowing or reference conditions 1 7 Station Capability Meter runs may be combined or subtracted in any mode to provide station flow rates and totalizers 1 8 Auxiliary Inputs Four auxiliary inputs are provided for miscellaneous sensors for example BS amp W Viscosity monitors etc and can be individually selected to be a 4 20mA 4 wire DIN cur
172. t The variable value is usually downloaded into the flow computer database viaa communication port or via a user variable statement 22 26 74 e 06 07 Configuration and Advanced Operation 2 5 7 Meter Run Settings Enter 1 2 3 or 4 at Config Meter n of the Misc Setup menu to open the following entries Meter 1 Meter 2 Meter 3 Meter 4 PL Flow UO Point Number Enter the number of the I O point used to input the flow signal for each meter run Flowmeter pulse inputs can only be assigned to the 3 input channel of any combo module and AN input channel of A Type combo modules When working with compact provers using pulse interpolation you must assign each of the flowmeter pulse signals to the 27 or 4 channel of an E Type combo module Flow Transmitter Tag Enter the 8 character tag name used to identify this flowmeter on the LCD display PL Dual Pulse Fidelity Check Enter Y to enable Level A pulse fidelity and security checking for this meter run API MPMS Chapter 5 Section 5 The Flow UO Point entered above must correspond to the 3 input channel of an E Combo Module The flowmeter pulses are physically wired to Input Channels 3 and 4 of the E Combo Module Enter N to disable dual pulse fidelity checking PL Temperature I O Point Enter the I O point number used to input the temperature signal for each meter run Duplicate UO assignments are allowed when a sensor is shared by mo
173. t 4mA or 1volt or lower range limit LRV of Honeywell Smart Transmitters L1 at 20mA Enter the pressure engineering units that the transducer outputs at 20mA or 5volts or upper range limit URV of Honeywell Smart Transmitters L1 Damping Code This entry only applies to Honeywell digital transmitters connected to an H Type combo module The process variable i e pressure is filtered by the transmitter before being sent to the flow computer The time constant used depends on this entry For Pressure Transmitters enter the selected Damping Code 0 0 seconds 5 2 seconds 1 0 16 seconds 6 4seconds 2 0 32 seconds 7 8 seconds 3 0 48 seconds 8 16 seconds 4 1 seconds 9 32 seconds 2 47 Chapter 2 INFO The first menu Misc Configuration should always be completed first as these entries specify the number and type of input and output devices connected to the flow computer i e the menus following the Misc Configuration menu do not ask for configuration data unless a transducer has been defined Flow Computer Configuration via the Menu Selection Method It is best to use this method when programming an application for the first time as every possible option and variable will be prompted Once a computer is in operation and you become familiar with the application you can decide to use the faster Random Access Method described below Once you have finished entering data in a setu
174. te Dm 22 74 06 07 YY Omni 4 17 Chapter 4 Flow Equations and Algorithms for US Customary Units Revision 22 74 4 6 4 18 Calculations for PID Control 4 6 1 Primary Variable Error ee Forward Action ep Primary Setpoint Span Primary Variable Span Reverse Action ep Primary Variable Span Primary Setpoint 4 6 2 Secondary Variable Error e Forward Action Ge Secondary Gain x Sec Setpoint Span Sec Variable Span Reverse Action Ge Secondary Gain x Sec Variable Span Sec Setpoint Span 4 6 3 Control Output C Before Startup Limit Function Controlling on Primary Variable Co Primary Gain x ep Le Controlling on Secondary Variable Co Primary Gain x es Xe E Omni 22 74 07 07 Volume 3c Configuration and Advanced Operation 4 6 4 Integral Error Ye Controlling on Primary Variable de Repeats per Minute of Primary Variable x Sample Period x ep Zen Controlling on Secondary Variable e Repeats per Minute of Sec Variable x Sample period x es Xe n 4 Dm 22 744 06 07 a Omni 4 19 Chapter 4 Flow Equations and Algorithms for US Customary Units Revision 22 74 Ei 4 20 Omni 22 744 07 07 Volume 3c Configuration and Advanced Operation aes Chapter 5 Flow Equations and Algorithms for SI Metric Units Revision 26 74 5 1 Liquid Flow Rate for Flowmeters The calculations performed for liquid helical tu
175. teger part of the number exceeds 9 999 999 To configure the user display screens proceed as follows From the Display Mode press Prog Setup Enter Enter and the following menu will be displayed Misc Setup Password Maint Y Check Modules Y Config Station Y Config Meter n Config PID n Config D A Out n Front Pnl Counters Program Booleans Program Variables User Display n Scroll down to User Display n and enter 1 through 8 to specify which screen you wish to configure 3 15 Chapter 3 User Programmable Functions The screen for Display 1 shows USER DISPLAY 1 Key Press Var 1 Tag Var 1 Index Var 1 Dec Var 2 Tag Var 2 Index Var 2 Dec Var 3 Tag Var 3 Index Var 3 Dec Var 4 Tag Var 4 Index Var 4 Dec Use the UP DOWN arrows to scroll through the screen For Key Press enter the key press sequence up to 4 keys that will be used to recall this display The keys are identified by the letters A through Z Diag i Alpha Prog Shift Gross Net Mass Energy SG API Control gt i a gt e ke BE e 9 r JX J E S J J Xu A Temp Press Density D P Orifice Meter 4 Le ell JL k A Time Counts Factor Preset Batch Analysis M N P R dl L419 27 33 Print Prove Status Alarms Product Setup cr fs s T U v w X D a t Y ee g X Ca
176. temperature and pressure kilograms per cubic meter Kgs m at 15 F and equilibrium pressure 26 74 e 06 07 Volume 3c Dimensionless Values The calculated correction factors for liquid flow equations are dimensionless however consistent units must be used when applicable 26 74 e 06 07 Configuration and Advanced Operation 5 2 Correction Factors for Liquid Flow The flow rate equations for flowmeters require calculating the following correction factors oo od o Meter Factor in Use Mp Volume Correction Factor Vcr Correction Factor for Pressure on Liquid Cp Correction Factor for Sediment and Water Content Csg w 5 2 1 Meter Factor in Use Mp MF Mrec MFpo Where Mr meter factor in use dimensionless MFgc meter factor interpolated from base meter factor curve MFpo meter factor offset from base meter factor curve obtained from proving Chapter 5 Flow Equations and Algorithms for SI Metric Units Revision 26 74 5 2 2 Volume Correction Factor Vcr Veg lt E ATs 14 ag a aT Where VCF volume correction factor e Napierian constant 2 71828 aTr correction for expansion at reference temperature K K xRAO RHO P Where Ko amp K physical constants derived from mathematical data published in the AP MPMS as follows Product Type Crude Oil Fuel Oil Jet Group Gasoline API Table ssaa s se s
177. ter Both lines are concatenated and appear on all reports L1 Checked Proved for FOR Enter Check Proved FOR String for the ticket or prove report 16 characters will be accepted Omni 22 26 74 e 06 07 Volume 3c Configuration and Advanced Operation BE Chapter 3 User Programmable Functions 22 26 74 e 06 07 3 1 Introduction The computer performs many functions displays and prints large amounts of data but there are always some application specific control functions calculations or displays that cannot be anticipated The OMNI Flow Computer incorporates several programmable features that enable the user to easily customize the computer to fit a specific application o User programmable Boolean Flags and Statements o User programmable Variables and Statements o User configurable Display Screens o User customized Report Templates The first three Items are explained here The last item requires the use of the OmniCom PC configuration software that comes with the flow computer 3 2 User Programmable Boolean Flags and Statements 3 2 1 What is a Boolean A Boolean point is simply a single bit register within the computer sometimes called a flag which has only two states On or Off True or False 1 or 0 These Boolean flags or points are controlled and or monitored by the flow computer and represent alarms commands and status points Each Boolean point is given an identifying number wi
178. termines the circumstances under which the primary or secondary variables are controlled Enter L for low or H for high error select according to the following modes MODE 1 MODE 2 Are both primary and secondary actions Are both primary and secondary actions forward forward yes no QN r2 yes no Q Enter L for Low yes Is secondary Enter H for High Error Select action forward Error Select no JL no J Enter H for High Enter L for Low Error Select Error Select Mode 1 The controller will attempt to control the primary variable but will switch to controlling the secondary variable should the controller be trying to drive the secondary variable ABOVE its setpoint An example of this mode would be controlling flow rate primary while not exceeding a MAXIMUM delivery pressure secondary Mode 2 The controller will attempt to control primary variable but will switch to controlling the secondary variable should the controller be trying to drive the secondary variable BELOW its setpoint An example of this mode would be controlling flow rate primary while not dropping below a MINIMUM pressure value secondary PL Startup Mode L M This entry determines how the computer handles a system reset such as a momentary loss of power Enter L Last to cause the PID loop to stay in the operating mode it was last in before the system reset Enter M Manual to cause the PID loop to startup with the PID loop in manual control mod
179. tes 2 34 User Programmable Functions 2 7 Configuring the Meter Station 2 7 1 Accessing the Station Setup Submenu Applying the Menu Selection Method see sidebar in the Select Group Entry screen Program Mode press Setup Enter and a menu similar to the following will be displayed SETUP MENU Misc Configuration Time Date Setup Station Setup Use the L up down arrow keys to move the cursor to Station Setup and press Enter to access the submenu 2 7 2 L1 Station ID Enter 8 alphanumeric characters maximum This string variable usually appears in user custom reports Modbus database point 4815 Meter Station Settings Flow Low Alarm Limit Enter the flow rate below which the Station Low Flow Alarm activates Modbus database point 1810 Flow rates 5 below this value activate the Low Low Alarm Modbus database point 1809 Flow High Alarm Limit Enter the flow rate above which the Station High Flow Alarm activates Modbus database point 1811 Flow rates 5 above this value activate the High High Alarm Modbus database point 1812 L1 Gross Flow Rate at Full Scale Enter the gross flow rate at full scale for the meter station Sixteen bit integer variables representing station gross and net flow rate are included in the database at 3802 and 3804 These variables are scaled using this entry and stored as percentage of full scale with a resolution of 0 1 e 0 to 999 0 to 9
180. the pressure correction factor CPL 2 60 Product 2 L1 Name L1 Table Select L2 API Relative Density Gravity Override L2 Relative Density SG Override L2 Reference Density Override L2 Reference Temperature L2 Alpha Coefficient L2 F Factor Override L2 Vapor Pressure at 100 F 37 8 C L1A Density Factor A B Meter 1 L1A Date of Meter Factor Curve L1A Meter Factor 1 L1A Flow Rate 1 L1A Meter Factor 2 L1A Flow Rate 2 L1A Meter Factor 3 L1A Flow Rate 3 L1A Meter Factor 4 L1A Flow Rate 4 L1A Meter Factor 5 L1A Flow Rate 5 L1A Meter Factor 6 L1A Flow Rate 6 L1A Meter Factor 7 L1A Flow Rate 7 L1A Meter Factor 8 L1A Flow Rate 8 L1A Meter Factor 9 L1A Flow Rate 9 L1A Meter Factor 10 L1A Flow Rate 10 L1A Meter Factor 11 L1A Flow Rate 11 L1A Meter Factor 12 L1A Flow Rate 12 Meter 2 Meter 3 Meter 4 SS Womni 22 26 74 e 06 07 Volume 3c INFO Characters in refer to password levels TIP Use the blank lines provided next to each configuration option to write down the corresponding settings you entered in the flow computer Product Setup via the Random Access Method Setup entries require that you be in the Program Mode In the Display Mode press the Prog key The Program LED will glow green and the Select Group Entry screen will appear Then press Product Enter or Produ
181. thin the data base of the computer allowing the state On or Off to be monitored or modified by assigning that Boolean point to a physical digital I O point or accessing it via a communication port A maximum of 24 physical digital I O points are available for monitoring limit switches status signals or controlling relays or lamps Y Omni 3 1 Chapter 3 INFO The 4 digit point numbers referred to in this chapter are Modbus index numbers used to identify each variable Boolean or other within the Modbus database A complete listing and descriptions of database points is included in Volume 4 1001 through 1024 1025 through 1088 1089 through 1099 1100 through 1199 1200 through 1299 1300 through 1399 1400 through 1499 1500 through 1699 1700 through 1799 1800 through 1899 2100 through 2199 2200 through 2299 2300 through 2399 2400 through 2499 2600 through 2623 2700 through 2759 User Programmable Functions Boolean points are numbered as follows Physical Digital I O Points 1 through 24 Programmable Boolean Points 64 total Programmable Pulse outputs 11 total Meter Run 1 Boolean Points Alarms Status etc Meter Run 2 Boolean Points Alarms Status etc Meter Run 3 Boolean Points Alarms Status etc Meter Run 4 Boolean Points Alarms Status etc Scratchpad Storage for Results of Boolean Statements Command or Status Inputs Station Boolean Flags Alarms Status etc Meter Run 1 Totalizer Roll o
182. thod when programming an application for the first time as every possible option and variable will be prompted Once a computer is in operation and you become familiar with the application you can decide to use the faster Random Access Method described below Once you have finished entering data in a setup submenu press the Prog key to return to the Select Group Entry screen Proceed as described in this manual for each setup option Meter Pressure Setup via the Random Access Method Setup entries require that you be in the Program Mode In the Display Mode press the Prog key The Program LED will glow green and the Select Group Entry screen will appear Then press Press Enter or Press Meter n Enter or Meter n Press Enter n Meter Run 1 2 3 or 4 Use WN V keys to scroll 2 44 User Programmable Functions 2 10 Configuring Pressure 2 10 1 Accessing the Pressure Setup Submenu Applying the Menu Selection Method see sidebar in the Select Group Entry screen Program Mode press Setup Enter and a menu similar to the following will be displayed kkk kk SETUP MENU Meter Run Setup Temperature Setup Pressure Setup Use the THAI up down arrow keys to move the cursor to Pressure Setup and press Enter to access the submenu 2 10 2 Station and Meter Run Pressure Settings Station Meter 1 Meter 2 Meter 3 Meter 4 Low Alarm Limit
183. tored and averaged for comparison with the new normalized meter factor just calculated L2 Meter Factor Deviation from Historical Average The maximum deviation allowed between the average of all stored historical meter factors for the current product and the new calculated meter factor normalized to the base prove flow rate L2 Automatic Meter Factor Implementation Enter Y to automatically implement the new meter factor and store in the appropriate product file Enter N to select not to automatically implement the meter factor determined from the prove L2 Apply Meter Factor Retroactively If you selected to auto implement the meter factor for the previous entry enter Y to retroactively apply the Meter Factor from the beginning of the batch The old meter factor will be back calculated out of the current batch and daily totals The batch and daily totals will be recalculated using the new meter factor Enter N to have the Meter Factor applied from this point on L2 Manual Implementation Time Limit In cases where Automatic Meter Factor Implementation is not selected the meter factor just calculated can be implemented manually by activating Modbus point 1787 within this number of minutes after the prove is completed Activating point 1787 after the time limit will have no effect L2 Tag Number L2 Manufacturer L2 Material L2 Serial Number L2 Arc All Reports Y N L2 Uni direction Reports
184. ue depending on the override code An displayed along side of the value indicates that the override value is substituted L2 Override Code Enter the Override Code strategy 0 Never use override code 1 Always use override code 2 Use override code on transmitter failure 3 On transmitter failures use last hour s average L1 at 4mA See eee Os Enter the pressure engineering units that the transducer outputs at 4mA or 1volt or lower range limit LRV of Honeywell Smart Transmitters L1 at 20mA Enter the pressure engineering units that the transducer outputs at 20mA or 5volts or upper range limit URV of Honeywell Smart Transmitters This entry only applies to Honeywell digital transmitters connected to an H Type combo module The process variable i e pressure is filtered by the transmitter before being sent to the flow computer The time constant used depends on this entry For Pressure Transmitters enter the selected Damping Code 0 0 seconds 5 2 seconds 1 0 16 seconds 6 4 seconds 2 0 32 seconds 7 8 seconds 3 0 48 seconds 8 16 seconds 4 1 seconds 9 32 seconds YY Omni 2 45 Chapter 2 Prover Pressure Setup via the Random Access Method Setup entries require that you be in the Program Mode In the Display Mode press the Prog key The Program LED will glow green and the Select Group Entry screen will appear Then press Prove Press Enter or Press Prove
185. uence Size BBL M3 Enter the new Batch size 22 26 74 06 07 Womni 2 67 Chapter 2 INFO The first menu Misc Configuration should always be completed first as these entries specify the number and type of input and output devices connected to the flow computer i e the menus following the Misc Configuration menu do not ask for configuration data unless a transducer has been defined Flow Computer Configuration via the Menu Selection Method It is best to use this method when programming an application for the first time as every possible option and variable will be prompted Once a computer is in operation and you become familiar with the application you can decide to use the faster Random Access Method described below Once you have finished entering data in a setup submenu press the Prog key to return to the Select Group Entry screen Proceed as described in this manual for each setup option Factor Setup via the Random Access Method Setup entries require that you be in the Program Mode In the Display Mode press the Prog key The Program LED will glow green and the Select Group Entry screen will appear Then press Factor Enter or Factor Meter n Enter or Meter n Factor n Meter Run 1 2 3 or 4 Use M V keys to scroll 2 68 User Programmable Functions 2 16 Configuring Miscellaneous Factors 2 16 1 Accessing the Fa
186. ust substitute dummy bytes in the message string Outgoing messages will always include the error checking bytes 2 26 User Programmable Functions L1 Modicon Compatible Y N Computer Default N Enter Y to configure these Modbus ports to be compatible with Modicon PLC equipment e g 984 series and DCS systems e g Honeywell TDC3000 systems using the Advanced Process Manager APM SI This entry will be disabled for Serial Port 1 if a printer is selected as the port type In this mode the point number indexes requested and transmitted while using the Modbus RTU modes are actually one less than the index number documented in this manual ASCII mode transmissions use the address documented in this manual Data is counted in numbers of 16 bit registers rather than points i e To request two 4 byte IEEE floating point variables index numbers 7101 and 7102 would require the host to ask for 4 registers starting at index 7100 IEEE Floating Point data bytes are transmitted in swapped format NORMAL IEEE FLOAT FORMAT Byte 1 Byte 2 Byte 3 Byte 4 Byte 1 Byte 2 Byte 3 Byte 4 Biased MS Manti LS Manti LS Biased MS Exponent Mantissa antissa Mantissa antissa Mantissa Exponent Mantissa L1 CRC Enabled Computer Default Y Many protocols use either a CRC LRC or BCC error check to ensure that data received is not corrupted The flow computer can be configured to ignore the error checking on incoming messa
187. uter Applications OMNI 6000 and OMNI 3000 Flow Computers are integrable into the majority of liquid and gas flow measurement and control systems The current firmware revisions of OMNI 6000 OMNI 3000 Flow Computers are 20 74 24 74 Turbine Positive Displacement Coriolis Liquid Flow Metering Systems with K Factor Linearization US metric units 21 74 25 74 Orifice Differential Pressure Liquid Flow Metering Systems US units metric units 22 74 26 74 Turbine Positive Displacement Liquid Flow Metering Systems with Meter Factor Linearization US metric units 23 74 27 74 Orifice Turbine Gas Flow Metering Systems US metric units About the User Manual This manual applies to 74 firmware revisions of OMNI 6000 and OMNI 3000 Flow Computers It is structured into 5 volumes and is the principal part of your flow computer documentation Target Audience As a users reference guide this manual is intended for a sophisticated audience with knowledge of liquid and gas flow measurement technology Different user levels of technical know how are considered in this manual You need not be an expert to operate the flow computer or use certain portions of this manual However some flow computer features require a certain degree of expertise and or advanced knowledge of liquid and gas flow instrumentation and electronic measurement In general each volume is directed towards the following users Volume 1 System Architecture and
188. uter will adjust the decimal position or default to scientific display mode Tag Index Decimal Points 2 Variable 3 Variable 4 Variable User Display 2 Key Press Sequence C C Tag Index Decimal Points 1 Variable 2 Variable 3 Variable 4 variable User Display 3 Key Press Sequence C Tag Index Decimal Points 1 Variable 2 Variable 3 Variable 4 variable Ei YY Omni 2 21 Chapter 2 Valid Index Number Assignments Any 32 bit integer or floating point variable within the database can be assigned to be viewed via a user display see Volume 4 for a complete listing Valid Key Press Sequences You may select a sequence of up to 4 key presses to recall each display This does not count the Display Enter key press which must be used to signal the end of the sequence Each key is identified by the red A through Z character on each valid key Valid keys are listed below A also labeled Gross B also labeled Net C also labeled Mass D also labeled Energy E also labeled S G API F also labeled Control G also labeled Temp H also labeled Press I also labeled Density J also labeled D P K also labeled Orifice L also labeled Meter M also labeled Time N also labeled Counts O also labeled Factor P also labeled Preset Q also labeled Batch R also labeled Analysis
189. ve RTD or 4 wire American curve RTD 1 9 Number of products Information Stored Product Data for eight products is stored including product name meter factors gravity density overrides and calculation mode to be used by each flowmeter running the product Omni 22 26 74 06 07 Volume 3c 22 26 74 e 06 07 Configuration and Advanced Operation 1 10 Type of Products Measured Crude oil refined products NGL s using API 2540 LPG s using GPA TP16 GPA TP27 API 23E 24E API MPMS 11 1 2004 and API Tables 6 23 and 54 are also provided 1 11 Batching and Interface Detection Six batch setups per meter run can be programmed with alphanumeric batch ID tag product number to run and expected size of batch Individual meter run batch preset down counters provide batch end warning and batch end reached alarms Batches can be ended manually or automatically on size of batch change of product beginning of new day day of the week or day of the month Product interface detection is achieved using a station interface detector densitometer mounted ahead of the meter runs Line pack count down counters allow up to three product interfaces to be tracked between the interface detector gravitometer and the valve manifold allowing pre emptive product cuts 1 12 Auto Proving Features Fully automated proving to API chapter 12 User configured for Uni Bi directional and compact provers with optional inlet
190. ver Flags Meter Run 2 Totalizer Roll over Flags Meter Run 3 Totalizer Roll over Flags Meter Run 4 Totalizer Roll over Flags Miscellaneous Station Boolean Points Alarms Status etc Miscellaneous Boolean Command and Status Points Station Totalizer Roll over Flags More Miscellaneous Boolean Command and Status Points 2800 through 2876 2877 through 2899 Physical Digital I O Points 1001 1024 Each of the physical digital I O points is assigned to a valid Boolean point number as detailed above Points 1700 through 1799 are command inputs which are described later all other point assignments indicate that the I O point is to be set up as an output point Output points which are dedicated as flow accumulator outputs can be set up for pulse widths ranging from 10 msec to 100 sec in 10 msec increments All other output point assignments have associated time ON delay and time OFF delay timers which are adjustable from 0 0 to 1000 sec in 100 msec increments Programmable Boolean Points 1025 1088 There are 64 user flags or Boolean points are available and are controlled by 64 Boolean statements or equations These are provided to perform sequencing and control functions Each statement or equation is evaluated every 100 msec starting at point 1025 and ending at point 1088 The results of these Boolean statements can then assigned to physical digital I O points There are no restrictions as to what Boolean points can be use
191. volume covers Application overview Flow computer configuration data entry User programmable functions Modbus Protocol implementation Flow equations and algorithms Ei a Omni xi ooo o OMNI 6000 OMNI 3000 User Manual Manual Updates and Technical Bulletins Volume 5 of the User Manual is a compendium of Technical Bulletins They contain updates to the user manual You can view and print updates from our website http www omniflow com Typographical Conventions These are standard graphical text elements used to denote types of information For your convenience a few conventions were established in the manual s layout design These highlight important information of interest to the reader and are easily caught by the eye xii For Your Information Volume 4 Modbus Database Addresses and Index Numbers Volume 4 is intended for the system programmer advanced user It comprises a descriptive list of database point assignments in numerical order within our firmware This volume is application specific for which there is one version per application revision Volume 5 Technical Bulletins Volume 5 includes technical bulletins that contain important complementary information about your flow computer hardware and software Each bulletin covers a topic that may be generic to all applications or specific to a particular revision They include product updates theoretical descriptions technical speci
192. zero and span settings to the default value This will require you to re calibrate all the outputs You can also do this on a channel by channel basis by entering the output channel number Chapter 2 INFO Characters in refer to password levels Characters in refer to key presses TIP Use the blank lines provided next to each configuration option to write down the corresponding settings you entered in the flow computer Some of these entries may not appear on the display or in OmniCom Depending on the various configuration settings of your specific metering system only those configuration options which are applicable will be displayed CAUTION If you change the number or type of installed I O modules you must perform the Check Modules Function to inform the computer that you wish to use the new hardware configuration 2 8 User Programmable Functions 2 5 5 Module Settings Enter Y at Check Modules of the Misc Setup menu and a screen similar to the following will display MODULE S WARE H WARE A 1 Y Y D 2 Y N S 2 Y Y Update S Ware PL Update S Ware Y A table is displayed showing all of the physically installed UO modules verses the I O modules recognized by the software see display example above You must answer the Update Software question entering Y whenever you change the number or type of installed modules The ava

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