GraviBlend -3P Portable Gravitometer User Manual
Contents
1. If the system pressure cannot be adjusted through the internal pressure regulator to the recommended 1 5 to 2 in WC check the correct supply pressure in the sample gas line If this does not solve the problem remove the screw cap above the Stainless Steel Gas Filter remove the filter element and clean or replace it C8 Analog Output 4 to 20 mA Option If so equipped the red and black terminals to the left of the operator interface provide a T scaled analog output signal in the range of 4 to 20 mA Depending on the selected Operating Mode the output can be assigned to Specific Gravity Heating Value or Wobbe Index Alternate Energy Systems Inc 210 Prospect Park Peachtree City GA 30269 USA Phone 770 487 8596 Fax 770 631 4306 e mail info altenergy com http www altenergy com prl2 doc Printed 4 13 2012 7 22 00 AM GraviBlend 3P_Manual_Generic_12A z GraviBlend 3P Portable Gravitometer Operator Manual Generic Version April 2012 Page 17 of 18 Appendix D Micro SD Card Structure This Electronic Operator Bun Mek Interface EOI has a slot for a sin Micro SD Card The main gt A Oce function of this card is to store z i sai he oie oi j 7 tile and Polder Taska cH Eie ee FPL Pe PM sz the data log files See Section 4 ssssei ra iai pin ah 3 4 3 on page 12 The data is ee cease degen isaac Stored in two directories named meee o rol see 97 TrendData_Sl and TrendData_US2. Regulator Vent Port Connect plastic tubing to this port and vent the gas to a safe are C4 Bypass Valve and Bypass Vent Port To increase flow of fresh sample gas to the gravitometer the Bypass Valve can be opened The excess gas is vented through the Bypass Vent Port Connect plastic tubing to this port and vent the gas to a safe are C5 Internal Regulator Setting Open the gold colored instrument cover by turning the two silver colored latches counter clockwise and lifting the cover upward A Fisher regulator with adjustable range O to 5 in WC is connected between the sample gas inlet and the density cell With sample gas connected to the GraviBlend adjust the regulator if necessary until the pressure gauge on the right side in the instrument cover reads approximately 1 5 to 2 in WC C6 Function of the pressure gauge on the left side in the instrument cover The gauge on the left side in the instrument cover is a differential pressure gauge indicating the differential pressure across the Gas Consumption Jet see schematics on next page Under normal operating conditions the differential pressure will be approximately the same as the system pressure as indicated by the pressure gauge on the right Alternate Energy Systems Inc 210 Prospect Park Peachtree City GA 30269 USA Phone 770 487 8596 Fax 770 631 4306 e mail info altenergy com http www altenergy com prl2 doc Printed 4 13 2012 7 22 00 AM Gra
3. 097 f 3 Data 1 405 13669 066 11529 972 4 Time SG S ev SI Wobbe SI 1 406 13678 824 11537 015 5 21 23 57 1 406 13693 459 11540 535 e E 6 21 24 12 1 406 13673 9468 11533 4956 ae a ee 7 21 24 27 1 406 13683 701 11540 535 1 406 13693 459 11547576 8 21 24 42 1 406 13698 3393 11551 097 1 406 13678 824 11537 015 9 21 24 57 1 405 13669 066 11529 9772 1 406 13678 824 11537 015 10 21 25 12 1 406 13678 824 11537 015 1 406 13683 701 11540 535 14 21 25 27 1 406 13688 585 11544 059 ea Core ene 42 21 25 42 1 406 13683 701 11537 015 en eee acme ee i 13 21 25 57 1 406 13683 701 11540 535 eet A nied Aes 14 21 26 12 1 406 13693 459 11547 576 1 406 13683 701 11537 015 16 21 26 27 1 406 13678 6824 11537 015 1 406 13683 701 11540 535 16 21 26 42 1 406 13678 8524 11537 015 1 OW 47 21 26 57 1 406 13663 701 11540 536 GE m ba aT a 40 oamim 40cm 7 Toa 44rF4aa Nnr NOTE Specific Gravity Heating Value and Wobbe Index are logged every 15 seconds This results in a total of 5760 data sets per day 5760 data sets per dtl file Since the SD card stores dtl files for 2 years 731 days it will hold 731 x 5760 4 210 560 data sets Alternate Energy Systems Inc 210 Prospect Park Peachtree City GA 30269 USA Phone 770 487 8596 Fax 770 631 4306 e mail info altenergy com http www altenergy com pr1l2 doc Printed 4 13 2012 7 22 00 AM GraviBlend 3P_Manual_Generic_12A z GraviBlend 3P Portab
4. D carronar am RAITA VAE N LADD MAEA Alar toniti a Appin WiU 34h PM The SD card also holds a PDF version of this manual in the directory Manual copies of the PLC program and the EOI program the remote access client software in directory VNC Remote Control and the converter program to access the stored data log files EasyConverter exe You can run the converter program to access the stored data log files by simply double clicking on it Open a data log file by clicking File Open and then selecting one of the files on the card The data log file names consist of 8 numbers and the file extension dtl The 8 numbers of the file name represent the date when the data was recorded for example 20110426 dtl contains the data log for April 26 2011 You can review the data on the screen or convert the data to an Excel file for further processing To convert a dtl file simply press the Excel icon below the title bar of the EasyConverter application E TrendData_SI 20110426 dt casyConverter Sele E Microsoft Excel 20110426 xls File Edit wiew Option gt Gel eM pe Creation time Tue Apr 26 21 23 57 2011 Data Time SG SIT CV_SI Wobbe_ l aE File Edit wiew Insert Format Tools Data Window Help Adobe 23 57 1 406 13693 459 11540_ 535 1 Creation time 24 12 1 406 13673 948 11533 496 24 27 1 406 13683 701 11540 535 2 Tue Apr 26 21 23 57 2011 24 42 1 406 13698 339 11551
5. GB 3P offers functions that are most useful for service and maintenance personnel A Main Instrument Functions Gravitometer Measure any non corrosive gas with a specific gravity SG between 0 2 and 2 2 Air 1 and display the result with a resolution of 0 001 LP Ratio Detect Measure the SG of LPG Vapor and determine the Propane Butane Ratio SNG Mode Measure the SG of an LPG Air blend and display Specific Gravity Heating Value and Wobbe Index TrendLine Record the SG value and recall the data on a graphic TrendLine screen US and SI Units Heating Value and Wobbe Index on all screens are displayed in standard US Units BTU cuft and in SI Units kcal m Wobbe Index Enter the properties of a fuel gas i e NatGas and display its Wobbe Index and the properties of an LP based replacement gas i e Propane Air B Overview All Functions and System Parameters of this gravitometer are controlled by an Electronic Signal Processor ESP The ESP communicates with an Electronic Operator Interface EOI with high resolution 800 x 480 color LCD display and touch screen The EOI has a number of screens with soft keys numeric display fields text message fields and so on The layout of each screen changes in response to the requirements of the task at hand and as a result of changes of the instrument status and or operator input The following sections describe the functions of the ESP and the EOI from the viewpoint of the us
6. of Natural Gas prl2 doc Printed 4 13 2012 7 22 00 AM GraviBlend 3P_Manual_Generic_12A eee Pressing this button while in EE Alternate Energy Systems Inc operating mode Gravitometer www altenergy com info altenergy com 2011 04 26 GraviBlend 3P Portable Electronic Gravitometer 19 07 34 with Advanced Features opens a new screen that will help you calculate the Wobbe Index of any Hydrocarbon based fuel gas NatGas BioGas LandFill Gas CokeOvenGas etc This information will be helpful in determining the properties of a Wobbe Index Calculation Utility This function will help you calculate the Wobbe Iridex NatGas CY ETU cuft 1000 of the NatGas that is being replaced by the LPG Air mixture kcal m The Suggested MixGas 56 value is based on the euie Air 1 0 600 properties of the LPG Feedstock you selected djust the Specific Gravi i otyoursna systemo BEB EY p T this Value to match the 2 f Sl Units After entering the Calorific Value and the Specific Gravity of the to be replaced tuel Daane SHEN SSR gas the instrument will calculate and display the Wobbe Index of the gas and will also display the Specific Gravity of an LP based replacement gas in the lower left of the screen replacement gas i e LP Air Wobbe Number of NatGas In the example above the CV of NatGas was entered as 1000 BTU cuft metric 8899 kcal m and the SG as 0 600 The GB 3P calculated the
7. the values for Specific Gravity Heating Value and Wobbe Index The data is stored every 15 seconds in one datalog file for standard US units and a separate datalog file for SI units The stored data can be recalled and graphically displayed by ose sete e etd tnd ae pressing one of the five buttons across the bottom of the Ame Soom agar se eel ara screen The bottom of the TrendLine Display has a EE Alternate Energy Systems Inc Heating Value BTU cuft time stamp Current Time and Date are also f ur Y www altenergy com info altenergy com 1 Hour TrendLine shown in the upper left area of the graphic i m 2011 04 26 GraviBlend 20 55 12 O4 26 11 Heating Value BTU cuft Touch Screen to show Watch Line The time scale of the TrendLine can be switched from 1 hour to 6 hours by pressing the button in the bottom right of the screen Real Time Value Value at Watch Line Alternate Energy Systems Inc Heating Value BTU cuft www altenergy com info altenergy com 6 Hour TrendLine 2011 04 26 GravibBlend 3P Portable Electronic Gravitometer 70 56 32 NOTE All data log values are also stored on a Secure Data card SD card that is inserted into the FOI The SD card holds Las ina od t Heating Value BTU cuft Touch Screen to show Watch Ling ae two years worth of data The data can Ee be read by Microsoft Excel with the data tsa 1500 viewer that is included on the SD card 1000 t0
8. 00 See Appendix D for details a m If you touch the screen anywhere in the fee iets TrendLine Display a vertical line appears pat The Time and Date of the position of the vertical line are displayed below the realtime Time and Date display Alternate Energy Systems Inc Heating Value BTU cuft www altenergy com info altenergy com 6 Hour TrendLine gt 7011 04 26 GraviBlend 3P Portable Electronic Gravitometer 20 57 27 T iE weld Heating Value BTU cutt Touch Screen to show Watch Line The process values that were recorded at that ad prl2 doc Printed 4 13 2012 7 22 00 AM GraviBlend 3P_Manual_Generic_12A 2500 i al time and date are shown in the lower center 2000 1500 1500 f area of the screen elt per s00 S00 1 gr 13 eB i fe B Bi 1m0 20 3019 71 3h 1S PPR eb PE ao i wem ee NOTE You can navigate the trend line graphics with the scroll buttons at the bottom of the screen Real Time value 1540 Value at Watch Line 3190 NOTE The EO stores up to 96 hours of data After 96 hours of data are recorded the oldest data is discarded and replaced by newer data Alternate Energy Systems Inc 210 Prospect Park Peachtree City GA 30269 USA Phone 770 487 8596 Fax 770 631 4306 e mail info altenergy com http www altenergy com pr1l2 doc Printed 4 13 2012 7 22 00 AM GraviBlend 3P_Manual_Generic_12A y GraviBlend 3P Portable Gravitometer Ope
9. A 30269 USA Phone 770 487 8596 Fax 770 631 4306 e mail info altenergy com http www altenergy com z GraviBlend 3P Portable Gravitometer Operator Manual Generic Version April 2012 Page 10 of 18 4 1 1 Select Pre Defined Mixture EE Alternate Energy Systems Inc www altenergy com info altenergy com za To select a different pre defined LPG mixture press the Arrow UP or Arrow DOWN button The Arrow UP button selects LPG Feedstock with lower Butane content the Arrow DOWN button selects LPG Feedstock with lower Butane content 7011 04 26 GraviBlena 3P ctronic Gravitometer 20 21 10 SNG Mode for LP Air Systems Measure Specific Gravity of Gas and calculate SNG Properties Feedstock Selection Change LPG Raws Vapor Properties CHANGE IN PROGRESS Propane Content JEL Mixture 10 50 Propane 50 Butane Butane Content j 50 0 Specific Gravity Air 1 ERAF Heating Value kcal m REZE i i 5 r Heating Value eru cunt E After the first pressing of an Arrow button the section ifselectionis not confirmed with ENTER key within C background color of the display changes to 2 Minutes previous selection is restored red reminding you that a new Feedstock has not yet been selected Once you have found the proper display of Propane and Butane content press the ENTER key pr12 doc Printed 4 13 2012 7 22 00 AM GraviBlend 3P_Manual_
10. G The Butane percentage is calculated automatically by the system NOTE Although your LPG mixture may contain other components besides Propane and Butane it is only required to enter the Propane percentage The remaining volume is assumed to be Butane If other LPGs are present in the mixture they are usually minor contributors and their specific gravities and calorific values are typically so close to the properties of Butane that the overall accuracy is not negatively affected If you feel that the resulting LPG properties are not accurate enough use the procedure in the next section to enter more accurate data for your specific LPG Alternate Energy Systems Inc 210 Prospect Park Peachtree City GA 30269 USA Phone 770 487 8596 Fax 770 631 4306 e mail info altenergy com http www altenergy com prl2 doc Printed 4 13 2012 7 22 00 AM GraviBlend 3P_Manual_Generic_12A y 4 1 3 Enter Feedstock CV and SG If Calorific Value and Specific Gravity of the raw LPG vapor are known use the Arrow keys until the display shows Enter SG CV of LPG then press the ENTER key You can now press the display fields Specific Gravity and BTU cuft or kcal m to enter the Calorific Value and the Specific Gravity of your LPG NOTE GraviBlend 3P Portable Gravitometer Operator Manual Generic Version April 2012 Page 11 of 18 Alternate Energy Systems Inc Ana
11. Generic_12A List of pre defined LPG mixtures Input SG CV 55 Prop 45 But Input Propane 50 Prop 50 But HD 5 LPG 45 Prop 55 But 95 Prop 5 But 40 Prop 60 But 90 Prop 10 But 35 Prop 65 But 85 Prop 15 But 30 Prop 70 But 80 Prop 20 But 25 Prop 75 But 75 Prop 25 But 20 Prop 80 But 70 Prop 30 But 15 Prop 85 But 65 Prop 35 But 10 Prop 90 But 60 Prop 40 But 5 Prop 95 But 4 1 2 Enter Propane Percentage enough to your feedstock properties use the www altenergy com infogpakenerg com a Arrow keys until the display shows Enter rem 2011 04 26 Graviblend 3P Portable Electronic Gravitometer 20 24 43 Propane then press the ENTER key SNG Mode for LP Air Systems Measure Speciic Gravity of Gas and calculate SNG Properties Feedstock Selection Change LPG Raw Vapor Properties CHANGE IN PROGRESS Propane Content 2 EZ Butane Content 6 Be Mixture 21 Enter Propane Specific Gravity Air 1 SE REE FA Healing Value kcal m FRE Press Arrow Keys to select Mixture Press ENTER to accept Heating Value BTU cuft Maree selection IF selection is not confirmed with ENTER key within Gostwinvow Minutes previous selection is restored ro indicate thata numero deoa fod s reag eed peen napa ey a to accept a user input it changes its background color to dark red You can now press the display field Propane and enter the Propane percentage of your LP
12. Wobbe Index as 1291 metric 11489 Based on the previously measured see Section 3 on page 6 or entered see Section 4 on page 9 properties of the available LPG the instrument calculates and displays the properties of the LP Air replacement gas in the in the lower left of the screen In this example the LP Air blending system should be operated at a Vapor Air setting that produces a MixGas Specific Gravity of 1 402 NOTE The result of this calculation depends on the correct input of the LPG properties Before calculating the SG of the replacement LPG Air gas the properties of the LPG feedstock must be entered see section 3 on page 6 and Section 4 on page 9 Alternate Energy Systems Inc 210 Prospect Park Peachtree City GA 30269 USA Phone 770 487 8596 Fax 770 631 4306 e mail info altenergy com http www altenergy com prl2 doc Printed 4 13 2012 7 22 00 AM GraviBlend 3P_Manual_Generic_12A GraviBlend 3P Portable Gravitometer Operator Manual Generic Version April 2012 Page 8 of 18 3 3 Semi Automatic Calibration Procedure www altenergy com infoialtenergy com 2011 04 26 Graviblend 3P Portable Electronic Gravitometer 18 50 39 Calibrating gravitometers has always been a Alternate Energy Systems Inc big problem usually requiring that the instrument be returned to the manufacturer Semi Automatic Sensor mn ration peresa af the entire instrument can be completedin Begin Rar Densi
13. d SNG EE Alternate Energy Systems Inc Mode selects the Gravitometer www altenergy com info altenergy com function that WaS specifically designed for lal 2011 04 26 GraviBlend 3P Portable Electronic Gravitometer 20 06 18 LP Air System S SNG Mode for LP Air Systems Measure Specific Gravity of Gas and calculare SNG Properties Gas Properties Calculation is based on LPG Feedstock Selection LPG Raw Vapor Properties specific Gravity Heating Value Wobbe Index Propane Content ES 50 0 The screen displays the measured Specific Air 1 keal m eens g Butane Content 1961 BE Gravity of the LP Air Mix and the calculated 1 407 13718 IE EEIEE specific Gravity Air 1 EWES Calorific Value and Wobbe Index in both San Waly vane Webbe Index Heating Value kcal m IEEE BT U cuft Standard Units Heating Value BTU cuft MRC The accuracy of the Calorific Value and Wobbe ore alee cape Index calculations is based on entering the correct information about the LPG feedstock that is used to generate the replacement gas Synthetic Natural Gas SNG standard US engineering units BTU cuft and in metric SI units kcal m Also shown is the SNG Ratio Vapor Air Change Feedstock LPG Properties The panel on the far right of the screen labeled LPG Raw Vapor Properties shows the properties of the currently selected LPG feedstock To change the s
14. eal Time Value 1 406 Value at Watch Line 1 000 NOTE You can navigate the trend line graphics with the scroll buttons at the bottom of the screen NOTE The EO stores up to 96 hours of data After 96 hours of data are recorded the oldest data is discarded and replaced by newer data Alternate Energy Systems Inc 210 Prospect Park Peachtree City GA 30269 USA Phone 770 487 8596 Fax 770 631 4306 e mail info altenergy com http www altenergy com prl2 doc Printed 4 13 2012 7 22 00 AM GraviBlend 3P_Manual_Generic_12A z GraviBlend 3P Portable Gravitometer Operator Manual Generic Version April 2012 Page 6 of 18 3 Operating Mode Gravitometer with Advanced Features ee Pressing the Advanced mm Alternate Energy Systems Inc l Analog Output Features button on the startup www altenergy com info altenergy com screen changes the operating mode to a 2011 04 26 GraviBlend 3P Portable Electronic Gravitometer 17 31 03 G r avit om et er with A dv ance d F e atur e g an d Measure Specific Gravity of Gas and determine the type of Gas NatGas LPG LPG Ajir opens the respective display The Measured Gas appears to be NatGas The SG display on this screen can have four different background colors It the Specific Gravity is below 0 7 Air 1 If the SG is below 0 7 the instrument interprets aah a a gaa the gas as NatGas and shows the SG value on a green colored backg
15. ed gas The two tables below show the results of the calculation for two different feedstock properties HD 5 95 propane 5 butane and a typical butane propane mixture with 70 butane and 30 propane 1 SG mixed gas Vapor Volume SG raw vapor Cars e21 121 960 se Alternate Energy Systems Inc 210 Prospect Park Peachtree City GA 30269 USA Phone 770 487 8596 Fax 770 631 4306 e mail info altenergy com http www altenergy com prl2 doc Printed 4 13 2012 7 22 00 AM GraviBlend 3P_Manual_Generic_12A GraviBlend 3P Portable Gravitometer Operator Manual Generic Version April 2012 Page 15 of 18 Appendix C Connection to the Sample Gas Source C1 Waste Port Mixed Gas Line After passing through the density pte hiplastc mong waste Port cell the sample gas exits at the Regulator Waste Port Connect plastic i f p Sample gas pressure Sample Gas Port tubing to this port and vent the gas 8 to 10 in WC oe to a safe are E ee Regulator Vent Port C2 Sample Gas Port a pen Bypass Vent Port Sample gas from the mixed gas j j OPEN line is connected to the Sample E EE E seu ne Gas Port The pressure of the Close Bypass Valve during Normal Operation sample gas must be reduced to 8 to 12 in WC by using a standard regulator for example a REGO model LV404B23 C3 Regulator Vent Port The vent line of the internal pressure regulator is connected to the
16. election press the yellow button labeled Change Feedstock LPG Properties at the bottom of this panel 4 1 Change LPG Feedstock Properties Gravitometers measure the specific gravity of EE Alternate Energy Systems Inc Analog Output the MixedGas Other information about the gas Pm eM LHAtAnaray COM a fa 2011 04 26 Graviblend 3P Portable Electronic Gravitometer 20 15 03 such as Calorific Value or Wobbe Index can be calculated from the SG if the properties of the LPG feedstock are known SNG Mode for LP Air Systems Measure Speciic Gravity of Gas and calculate SNG Properties Feedstock Selection Change LPG Raw Vapor Properties Propane Content 2 Butane Content 36 Specific Gravity Air 1 EEA This instrument makes it easy to select the LPG feedstock properties from a list of 20 pre FA FA Heating Value kca m ERZE defi ned m ixtu res or to e nter the Press Arrow Keys to select Mixture Press ENTER to accept Heating Value BTU cuft 4 ia selection IF selection is not confirmed with ENTER key within Gostwinnow Propane Butane com position of the LPG or to 2 Minutes previous selection is restored enter the SG and CV of the raw LPG vapor Peake et The panel on the far right of the screen labeled LPG Raw Vapor Properties shows the properties of the currently selected LPG feedstock Alternate Energy Systems Inc 210 Prospect Park Peachtree City G
17. er through descriptions of the functions of the display elements on each screen The general principle of the gravitometer is described in the product brochure A brief overview on how to connect the gravitometer to the sample gas line is provided in Appendix C Alternate Energy Systems Inc 210 Prospect Park Peachtree City GA 30269 USA Phone 770 487 8596 Fax 770 631 4306 e mail info altenergy com http www altenergy com prl2 doc Printed 4 13 2012 7 22 00 AM GraviBlend 3P_Manual_Generic_12A GraviBlend 3P Portable Gravitometer Operator Manual Generic Version April 2012 Page 4 of 18 1 Electronic Operator Interface EOI The EOI has a high resolution color LCD display with 800 x 480 pixels and touch screen It can display several lines of text and or graphics and has a backlight illumination for iv Alternate Energy Systems Inc improved readability Wai allenergy com infogaenergy com Specific Gravity Air 1 When power is first applied the instrument is in Gravitometer Mode and the display shows the Specific Gravity SG of the connected gas This screen also provides access to the Advanced Features and access to two screens that show a graphic representation of the SG TrendLine 1 405 2 Operating Mode Basic Gravitometer Alternate Energy Systems Inc ees www altenergy com infog altenergy com Setup 2011 04 26 GraviBlend 3P Portable Electronic Grav
18. g Mode SNG or that was selected The properties of the gas are typical for LP Air Mix CV of LP Air MixGas BTU cuft 1529 when 100 vapor was applied to the nr hatcan be adjusted n SNG Mode CM OF LP Air MixGas kcal m 13610 Suncor Joa Etc ass If the SG is above 1 53 the instrument EE Alternate Energy Systems Inc interprets the gas as 100 LPG Vapor and www_altenergy com info akenerg com aaa 2011 04 26 GraviBlend 3P Portable Electronic Gravitometer 17 47 02 shows the SG value on a black colored bac kg rou nd Measure Specific Gravity of Gas and determine the type of Gas NatGas LPG LPG Ajr Propane in LPG 33 6 Butane in LPG 66 4 CV of LPG BTU cuft 3024 CV of LPG keal m 26909 The Measured Gas appears to be LPG Vapor In addition to the SG display the screen also shows the Propane Butane ratio in the LPG A S 42 and the Heating Value m The properties of the ges are typical for straight LAG Wapor You can use the button om the right to transar the LPG Se Press the yel low button to transfer Propety thes vie RR Selech ba ING M ge the LPG properties to operating mode Gravitometer for SNG Systems This ee FIR M a i will allow the instrument to accurately calculate the properties of your SNG Alternate Energy Systems Inc 210 Prospect Park Peachtree City GA 30269 USA Phone 770 487 8596 Fax 770 631 4306 e mail inf
19. input or the ESC Escape key to cancel your input CAUTION The 4mA and 20mA equivalents can be freely assigned to any reading over the entire range of the density cell Apply caution when setting the outout range 2 2 TrendLine Display When in Basic Gravitometer EE Alternate Energy Systems Inc spect Samy j wwwaltenergy com info altenergy com hour frenauine nae me aoe mentors the 2011 04 26 GraviBlend 3P Portable Electronic Gravitometer 16 51 09 Specific Gravity values and stores them every 15 seconds in T Mesine OAIE Specific Gravity Airs 1 Touch Screen to show Watch Line 30 I8 4 7 i 7 1 8 a datalog file The stored data can be recalled i 16 1 Hour TrendLine or 6 Hour TrendLine buttons and graphically displayed by pressing the E The bottom of the TrendLine Display has a time stamp Current Time and Date are also shown in the upper left area of the graphic EE Alternate Energy Systems Inc Specific Gravity If you touch the screen anywhere in the TrendLine Display a vertical line appears 1 Hour TrendLine www altenergy com ae com Specific Gravity Air 1 Touch Screen to show Watch Line The Time and Date of the position of the iaaa vertical line are displayed below the realtime Time and Date display 12 The process values that were recorded at that time and date are shown in the lower center area of the screen R
20. itometer 10 15 52 The Gravitometer Mode is the default operating mode after power up The SG of the gas that is currently present in the measuring chamber of the density cell is displayed in large numbers with a resolution of 0 001 Specific Gravity Air 1 The measuring range of the density cell is 0 2 2 2 Air 1 somite vewrenine _ o pore The GB 3P is equipped with an internally powered 4 20 mA analog output In operating mode Basic Gravitometer the output is assigned to represent the Specific Gravity The output can be turned ON or OFF and the range assignment of the output can be established or changed by pressing the Analog Output button in the upper right area of this screen cal Alternate Energy Systems Inc RETURN 2011 04 26 GraviBlend T Portable Electronic Gravitometer 14 28 37 2 1 Analog Output This opens the Analog Output Setup Screen The screen has two numeric data input fields on the right and two radio buttons for ON OFF below them Select Settings tor 4 20mA Analog Output The Graviblend 3P portable Gravitometer Specitic Gravity Reading for is equipped with a 4 204 Analog Output Analog Oulput 4 mA 0 400 In the example shown on the right the Analog Output is set to 4mA at SG 0 4 and 20mA at SG 2 0 To change a setting simply press the display field This opens a 10 key keypad Enter the new value and press ENTER The default setti
21. le Gravitometer Operator Manual Generic Version April 2012 Page 18 of 18 Appendix E Remote Access The operator interface is equipped with a remote access feature You can access the panel with a VNC Viewer via its Ethernet port The VNC Viewer is freeware and is included on the SD card see above You can install the VNC viewer on as many PCs or Laptops as you like The VNC Viewer accesses the panel via Port 5900 If the panel is located behind a router or a firewall make certain that this port is open and that port forwarding for this port is pointed to the IP address of the panel The default local IP address of the panel is 192 168 000 34 After launching the VNC Viewer a connection window appears n gt x Enter the IP address of the EOI or the IP address of the router vycseve 132168092 AG that is in front of the EOI and click the Connect button it Ce INC Default connection options High speed network eT TightV NC Connection Connecting to 192 168 0 92 Status Security type requested Standard VNC Authentication fx When the connection is established a login window appears VNC Host 192 168 0 92 Enter the default password 111111 and click the OK button User name VNC Password The screen that is currently displayed at the EOI appears in a new window on your PC Screen You can now operate www altenergy com info altenerg
22. log Output www altenergy com infogjaltenergy com 2011 04 26 GraviBlend 3P Portable Electronic Gravitometer 30 29 45 E SNG Mode for LP Air Systems Measure Specific Gravity of Gas and calculare SNG Properties Feedstock Selection Change LPG Raw Vapor Properties CHANGE IN PROGRESS Propane Content Mixture 22 Enter SG CV of LPG Butane Contant 1 1 MEE Specific Gravity Air 1 SE REE Heating Value kcal m FEREN Press Arrow Keys to select Mixture Press ENTER bo accept Heating Value BTU cuft EEEE selection IF selection is not confirmed with ENTER key within Minutes previous selection is restored Seen e RS a After entering the new Feedstock properties the Propane and Butane percentages will be re calculated and displayed The calculation is again see above based on the assumption that the LPG consists only of Propane and Butane NOTE lf the ENTER key is not pressed within 2 minutes the Feedstock Selection reverts back to the previous setting 4 2 Analog Output in Operating Mode SNG The GB 3P is equipped with an internally powered 4 20 mA analog output In operating mode Gravitometer for SNG Systems the output can be assigned to represent Specific Gravity Heating Value or Wobbe Index by pressing one of the radio buttons across the bottom of the screen The range assignment of the output can be established or changed by entering the new a
23. ng for the Analog Output is SG 0 4 gt 4mA Output SG 7 0 gt 20 mA Output Tou can change the settings for the Analog Output with the data input fields on the right Specific Gravity Reading for Analog Output 20 mA Check these fields to turn Analog Qulpul ON or OFI Alternate Energy Systems Inc 210 Prospect Park Peachtree City GA 30269 USA Phone 770 487 8596 Fax 770 631 4306 e mail info altenergy com http www altenergy com prl2 doc Printed 4 13 2012 7 22 00 AM GraviBlend 3P_Manual_Generic_12A z GraviBlend 3P Portable Gravitometer Operator Manual Generic Version April 2012 Page 5 of 18 2 1 1 Data Entry Procedure Press a numeric display AB isi TEEN Ine ete field to open the 10 key AMEE cumme et teling for 4 POriA Analog Dup pad Mhe Gable 3P parabe meia Tpi iy Aeading lor h equipped wath a 4 70 Analog Output Analog Quput 4 mA 0 400 The default saning for he Analog Ciga is E h 0 4 4 m Duiput Sprctlic Gravity Reailing tor nter t e new va ue S00 A 70 mA Diii Analog ulpa 20 ma 2 000 You can chanpe the vettings for the Thed hea fekk iaman F O You can change the welin Analog Output wiih the data input alts Check theve fields 10 tune O Anakeg Output with the dai P h E NT E pn the right Analog Quapua OM or OFF on the right ress e nter T oN key to accept the input or the CLR Clear key to ieee 2 Hour Tred _ Hour Trenatine erase your
24. nput has stabilized press the Accept Reading 1 button The display field below this button will now show the raw data at the PLC analog input e Apply Calibration Gas 2 Connect the second calibration gas to the Gravitometer f Accept Reading 2 After the display PLC Analog Input has stabilized press the Accept Reading 2 button The display field below this button will now show the raw data at the PLC analog input g Transfer Calibration Data After completing step f press the Accept Calibration and transfer new Range button This will cause the PLC to calculate the new range of the density cell optimized for the section represented by the two calibration gasses The new Sensor Range is shown in the two numeric display fields in the upper section of the window This completes the calibration procedure NOTE You can also set the range of the density cell by manually entering the data in the numeric display fields labeled Begin Range and End Range Alternate Energy Systems Inc 210 Prospect Park Peachtree City GA 30269 USA Phone 770 487 8596 Fax 770 631 4306 e mail info altenergy com http www altenergy com prl2 doc Printed 4 13 2012 7 22 00 AM GraviBlend 3P_Manual_Generic_12A z GraviBlend 3P Portable Gravitometer Operator Manual Generic Version April 2012 Page 9 of 18 4 Operating Mode Gravitometer for SNG Systems Pressing the button labele
25. o altenergy com http www altenergy com z GraviBlend 3P Portable Gravitometer Operator Manual Generic Version April 2012 Page 7 of 18 3 1 Analog Output The GB 3P is equipped with an internally powered 4 20 mA analog output In operating mode Gravitometer with Advanced Features the output is assigned to represent the Specific Gravity The output can be turned ON or OFF and the range assignment of the output can be established or changed by pressing the Analog Output button in the upper right area of this screen This opens the Analog Output Setup Screen f Aitomate Energy Systema ne PA 2011 04 26 Graviblend 3P Portable Electronic Gravitometer 14 28 37 The screen has two numeric data input fields on the right and two radio buttons for ON OFF below them Select Settings tor 4 20mA Analog Output The Graviblend 3P portable Gravitometer Specitic Gravity Reading for i equipped with a 4 204 Analog Output Analog Oulput 4 mA 0 400 The default setting for the Analog Output is In the example shown on the right the Analog SG 0 4 gt 4mAQutput Spe ses Stemi ee tee 2 000 Output is set to 4mA at SG 0 4 and 20mA at Bites vee _ Tou can change the settings for the SE ee athe ee EE eee SG 2 0 z Analog e a input fields e O ve pis C To change a setting simply press the display field This opens a 10 key keypad Enter the new value and press ENTER 3 2 Calculate Wobbe Index
26. prl2 doc Printed 4 13 2012 7 22 00 AM GraviBlend 3P_Manual_Generic_12A Alternate Energy Systems Inc E A Corporation devoted to Energy Oriented Needs GraviBlend 3P Portable Gravitometer User Manual Generic Version April 2012 Revision NONE Alternate Energy Systems Inc 210 Prospect Park Peachtree City GA 30269 USA Phone 770 487 8596 Fax 770 631 4306 e mail info altenergy com http www altenergy com pr1l2 doc Printed 4 13 2012 7 22 00 AM GraviBlend 3P_Manual_Generic_12A GraviBlend 3P Portable Gravitometer Operator Manual Generic Version April 2012 Page 2 of 18 Revision Log This is a generic version of a standard GB 3P manual It is intended for information only and does not necessarily represent the configuration of a specific instrument Alternate Energy Systems Inc 210 Prospect Park Peachtree City GA 30269 USA Phone 770 487 8596 Fax 770 631 4306 e mail info altenergy com http www altenergy com prl2 doc Printed 4 13 2012 7 22 00 AM GraviBlend 3P_Manual_Generic_12A GraviBlend 3P Portable Gravitometer Operator Manual Generic Version April 2012 Page 3 of 18 User Manual for Portable Gravitometer GraviBlend 3P The GraviBlend 3P GB 3P is the portable version of the successful GraviBlend 3 series of stationary gravitometers While the stationary gravitometers were specifically designed for use in LP Air blending systems the
27. rator Manual Generic Version April 2012 Page 13 of 18 Appendix A List of Selectable LPG Mixtures Propane Butane BTU cuft 2516 3280 S G 1 53 2 00 Mixture Propane Butane Calorific Value Calorific Value Specific Percentage Percentage BTU cuft kcal m Gravity 0 100 0 2516 22390 1 530 1 95 5 2554 22728 1 554 2 90 10 2592 23067 1 577 3 85 15 2631 23414 1 600 4 80 20 2669 23752 1 624 5 75 25 2707 24090 1 647 6 70 30 2745 24428 1 671 7 65 35 2783 24766 1 694 8 60 40 2822 25113 1 718 9 55 45 2860 25452 1 741 10 50 50 2898 25790 1 765 11 45 55 2936 26128 1 788 12 40 60 2974 26466 1 812 13 35 65 3013 26813 1 835 14 30 70 3051 27151 1 859 15 25 75 3089 27489 1 882 16 20 80 3127 27828 1 906 17 15 85 3165 28166 1 929 18 10 90 3127 28513 1 953 19 5 85 3242 28851 1 976 Alternate Energy Systems Inc 210 Prospect Park Peachtree City GA 30269 USA Phone 770 487 8596 Fax 770 631 4306 e mail info altenergy com http www altenergy com prl2 doc Printed 4 13 2012 7 22 00 AM GraviBlend 3P_Manual_Generic_12A GraviBlend 3P Portable Gravitometer Operator Manual m Generic Version April 2012 Page 14 of 18 Appendix B Calculation of Mixed Gas Composition based on S G reading and Feedstock Properties The following formula can be used to calculate the vapor air composition of the mix
28. round w o ssw Alternate ey Systems Inc If the SG is between 0 7 and 1 25 the Jy instrument interprets the gas as blend of man NatGas and Synthetic Natural Gas SNG and Measure Specific Gravity of Gas and determine the type of Gas NatGas LPG LPG Air shows the SG value on a_brown colored The Measured Gas background appears to be NatGas SNG 0 851 If the SG is between 1 25 and 1 53 the The properties of the gas are typical for a mixture of instrument interprets the gas as LPG Air blend PS Air NG and NatGas This assumes that the G8 3P is used in an environment where this can occur Synthetic Natural Gas SNG and shows the SG value on a blue colored background al ape Eea Lace epee In addition to the SG display the screen also EE Alternate Energy Systems Inc Analog Output shows the properties of the LPG that is used in www altenergy com info altenergy com 2011 04 26 Graviblend 3P Portable Electronic Gravitometer 17 38 24 the SNG the vapor air blending ratio and the Heating Value of the SNG Measure Specific Gravity of Gas and determine the type of Gas NatGas LPG LPG Air The Measured Gas Propane in LPG 50 0 NOTE appears to be LP Air Mix snes LPG wea bie The gas properties information is based on the A 40 4 CV of LPG Ikcal m 25790 LPG feedstock that has been selected while in E Air in LP Air MixGas 47 2 Vapor in LP AirMixGas 52 8 Operatin
29. ssignments into the numeric display fields in the center right of the screen In the example shown on the right the Analog Output is set to 4mA at Wobbe Index 400 and 20mA at Wobbe Index 2000 To change a setting simply press the display field and follow the procedure described in Section 2 1 1 on page 5 Alternate Energy Systems Inc www altenergy com info altenergy com 2011 04 26 GraviBlena 3 ectronic Gravitometer 20 36 48 The GraviBlend 3P portable Gravitometer Process Value Reading for is equipped with a 4 20mA Analog Output Analog Output 4 mA 00400 Select the Process Value SG CV WOBBE Example SG 0 4 gt 4 MA and the engineering units kcal m or 61 U cuft to assign to the Analog Output Process Value Reading for Enter the Process Value for 4 mA Output and Analog Output 20 mA 02000 for 20 mA Output in the panel on the right Example SG 2 0 gt 20 mA Output OFF SG CV BTU cuft CV kcal m Wobbe Standard Units Wobbe SI Units amn Sots E SE SH ES Select Settings for 4 20mA Analog Output Alternate Energy Systems Inc 210 Prospect Park Peachtree City GA 30269 USA Phone 770 487 8596 Fax 770 631 4306 e mail info altenergy com http www altenergy com z GraviBlend 3P Portable Gravitometer Operator Manual Generic Version April 2012 Page 12 of 18 4 3 TrendLine Recording in Operating Mode SNG When in SNG mode the system monitors
30. ty Sens r Ra nge Alternate Energy Systems has developed a ss pan eek fi to method that provides for a simple yet powerful 2 the dpa PLC Analog Iput to abile routine that recalibrates the entire system in fea Consina bnan me seat as only a few steps ae te Aslar PLC Analg rut stabiliee the Accept Reading 2 butte a J Press the Accept Calibration and trangfer new Range Because the calibration procedure includes the ssn this complete the Calibration entire system from density cell to signal converter to PLC input the overall system accuracy will be greatly improved ees i Follow these simple steps to calibrate the gravitometer a Select the Reference Gasses The two calibration gasses should have specific gravities that are close to the upper and lower limits of the expected measurement range respectively If used with LPG air mixtures two commonly available gasses would be Nitrogen N2 SG 0 967 and Argon Ar SG 1 38 b Enter the Specific Gravity of the two Calibration Gasses Enter the specific gravities of the two selected gasses in the numeric data entry fields labeled Enter SG of Calibration Gas 1 and Enter SG of Calibration Gas 2 The value for the gas with the lower SG must be entered in field Enter SG of Calibration Gas 1 c Apply Calibration Gas 1 Connect the first calibration gas to the Gravitometer d Accept Reading 1 After the display PLC Analog I
31. viBlend 3P_Manual_Generic_12A GraviBlend 3P Portable Gravitometer Operator Manual Generic Version April 2012 Sample Gas Page 16 of 18 Regulator 10 2 inWC 25 5 mbar Install as close to Mixed Gas Line as possible Regulator Vent Port ByPass Valve Open during startup to increase fast sensor response Closed during normal operation Differential Pressure Indicator Pressure Indicator Normal Range 1 4 1 8 inWC ot ee j man e eee 0 Specific Gravity Sensor with Electronics and U I Converter Gas Consumption Jet 0 4 mm 0 0157 in Pressure Regulator set to 1 5 inWC Gas Filter Stainless Steel 20 60 Micron boos m s e iy ioy a oy M ee ee ee y o ee ee ee ee y ee O ee y If the differential pressure is substantially less than the system pressure check the Waste Port for blockage If this does not solve the problem remove the screw cap above the Gas Consumption Jet remove the orifice and clean it C7 Stainless Steel Gas Filter The multi function manifold block inside the GraviBlend enclosure features an integrated stainless steel micro filter This filter is intended to remove solid objects from the sample gas stream without significantly reducing the gas flow
32. y com the GB 3P as if you were physically In 2011 04 26 GraviBlend 3P Portable Electronic Gravitometer 21 17 06 front of it Specific Gravity Air 1 1 406 Alternate Energy Systems Inc 210 Prospect Park Peachtree City GA 30269 USA Phone 770 487 8596 Fax 770 631 4306 e mail info altenergy com http www altenergy com
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