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DCT 7088 Manual - SRP Control Systems

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1. 11 Set the current loop span by accessing Menu 57 Figure 3 14 E The current loop span is the span of 0 00 Gal s flow versus current Figure 3 14 F 12 Enter a flow rate which equals the 4 mA minimum anticipated reading and press ENTER 13 Press the DOWN ARROW and Figure 3 14 F is displayed 14 Enter a flow rate which equals the 20 mA maximum anticipated reading and press ENTER 15 Access Menu 00 to complete the current loop calibration process 3 15 Additional Setup Menus Within the ALARMS Submenu Not included in the Quick Setup Configuration The ALARMS submenu 70 contains the setup menus for programming and viewing the flovvmeter s alarm Alarms parameters Up to 4 alarms may be independently aProgram uViev programmed ON or OFF based on flow rate or signal strength values If the measured value of the selected Figure 3 15 A condition falls outside the specified parameters the alarm activates and causes the printer if purchased with flowmeter to print the flow data and or alarm status Figure 3 15 A 23 3 15 1 Programming the Alarm 1 Access Menu 71 and select and alarm to program Figure 3 15 B Prog Alarm ml m2 a3 m4 2 Figure 3 15 C is displayed Select an alarm ON condition Figure 3 15 B e NOT PROGRAMMED alarm OFF FLOW s alarm activates when flow rate is Alarm 1 On Condition greater than ON condition value e FLOW alarm activates when flow rate is less
2. sl v l Olive oil 21 7 71 37 8 100 54 4 130 sa Palm oil 37 8 100 47 8 54 4 130 26 4 58 Oleic acid mz a 54 4 130 23 4 een n Pentane 0 68 80 E s si Re 71 1 raemor ml ent ee vu Potassium 150 1890 rei um el E Poa al ef um as Apo r ms Propylene glycol EE ye am ames Sodium chloride fused 1991 1562 6530 DS ITI Je Soya bean oil 37 8 100 54 4 130 Sperm oil 37 8 100 54 4 130 Sugar solutions Corn syrup 86 4 Brix 37 8 100 180Mcp 82 2 180 1750cp 84 4 Brix 37 8 100 48Mcp 82 2 180 800cp 82 3 Brix 37 8 100 17Mcp 180 380cp 80 3 Brix 6900cp 230cp 78 4 Brix 3200 160 Sugar solutions Sucrose 68 Brix 72 Brix 74 Brix om ve as Sugar solutions cont Sucrose 76 Brix 21 1 70 2200 iex 8 100 Sulphur 030 1332 266 469 14 5 20 68 4 4 Tar coke oven 21 1 70 600 1760 37 8 100 141 308 Tar gas house 21 1 70 3300 66M 37 8 100 440 4400 Tar pine 37 8 100 559 55 6 132 108 2 Tar road 50 122 43 2 64 9 100 212 8 88 10 2 50 122 86 6 154 100 212 11 6 14 3 50 122 216 440 100 212 16 8 26 2 50 122 660 1760 100 212 31 8 48 3 50 122 4 4M 13 2M 100 212 53 7 86 6 122 25M 75M is 212 um 173 Tin Tin moten 2470 464 om 81 aa Toluene 20 68 0 68 mm 1275 86 41 o Lo Toluidine 22 225 1669 n 5474 s
3. APPENDIX C MONITORING DOVVNLOADING DATALOGS USING D Link D Link is PC based user interface software that can communicate with DCT6088 and DCT7088 flowmeters to monitor and download datalog information C 1 Installing D Link Start the PolyCD and select D Link in Communication Software Follow the instructions to install D Link C 2 Establishing Communications with a Flowmeter 1 Goto the Options Group menu 42 and select D Link in the communication options 2 Connect a RS232 cable from the PC to the flowmeter 3 Open the D Link utility If a Communication Failed dialogue opens as shown in Figure C 2 A click OK Make necessary adjust ments according to your PC setup Figure C 2 B and click OK DLink EE CommPort Properties x TTT Communications Failed A A Port Coml Maximum S peed 19200 xl Cancel Connection Preferences Flow Control Data Bits e Y None C Xon Xoff Parity None v C RTS Stop Bits 1 C Xon RTS Figures C 2 A amp C 2 B If communications still do not establish check the following and correct any errors e D Link is selected in communication Options Menu RS232 cable is connected correctly between the meter and your PC e no other software program in your PC is using the COM port you selected 64 C 3 Monitoring Datalogs Once communications between the PC and the meter establish the program opens as shown in Figure C 3 A below Click the arrow
4. COUPLING COMPOUND Figure 4 5 E APPLYING FOAM TAPE STRIPS STEP 4 5 EMERGENCY VERRIDES amp MASTER ERASE Since these 2 procedures allow critical data to be accessed and changed this page may be re moved from the instruction manual to prevent unauthorized use of these features 5 1 Emergency Overrides In the event that a user entered password is forgotten the following emergency override passwords may be used 42 for the system password and 43 for the scale factor password These override passwords may not be changed or disabled 5 2 Performing a Master Erase This function erases all user entered data AND data in the datalogger Note all configuration settings and download the datalog file if a record is desired prior to performing a Master Erase 1 Turn the flowmeter off and back on again aster Erase 2 When the message INITIALIZING is displayed Are you sure 5 yes press ERASE within 3 seconds 3 The Master Erase screen is displayed Figure 5 A To continue vvith the Master Erase press the 5 key aster Erase Are you vvithin 3 seconds and Figure 5 B is displayed really sure yes 4 Press the decimal key within 3 seconds to continue Fieure 5 B 5 If the Master Erase function is completed Figure 5 C is displayed If the function is not Master Erase completed Figure 5 D is displayed Comp leted 6 Enterall configuration data Figure 5 C Master Erase Aborted Figu
5. DOWNSTREAM TRANSDUCER Figure 1 2 A TYPICAL TRANSIT TIME SYSTEM Once the differential transit time is calculated several additional variables must be taken into consider ation The overall velocity of the fluid is actually made up of many individual local velocities that vary according to their distance from the pipe wall The velocities in the center of the pipe are higher than the velocities near the pipe wall The combination of these individual velocities for a specific type of fluid within a specific pipe yield a velocity distribution known as the flow profile Figure 1 2 B page 2 which is a function of the Reynolds number By properly configuring the flowmeter the effects of the flow profile are taken into consideration when calculating the mean fluid velocity The flowmeter then multiplies this velocity by the pipe s cross sectional area to obtain volumetric flow LAMINAR FLOW PLUG FLOW PROFILE PROFILE 1 1 gt yl TURBULENT FLOW PROFILE Figure 1 2 B FLow PROFILES 1 3 Transit Time Accuracy Noninvasive ultrasonic measurements are subject to a variety of effects that can influence measurement accuracy All ultrasonic instruments are velocity measuring devices and only infer volumetric flow from the operator entered parameter of pipe inside diameter ID When this value is squared to get cross sectional area a 196 error yields a 296 error in volumetric flow In practice commercially fabricated pipe se
6. Decon o 1250 el 4100 41001 Diesel fuel oils 37 8 100 54 4 130 37 8 100 6 11 75 54 4 130 3 97 6 78 37 8 100 29 8 max 54 4 130 13 1 max 122 86 6 max mz NE 2 max Diethyl Ether Ether 0222 32 Diethylene glycol 21 1 70 30 1533 86 5028 Diethylene glycol monoethyl 1296 4251 ether Dimethyl siloxane 20 912 3 2992 Dow Corning 200 fluid 53 me Je e Joe a CR FCI MIE em al me ef s l name af ml ml ml SE E Ethyl acetate CH COOC H 20 1133 3716 0 Ethyl alcohol 0 1161 8 3811 z 3057 0 27 Ethyl bromide C H Br 10 20 Ethylene chloride ud 0 668 Ethylene dibromide 1014 Ethylene dichloride 775 si 4067 Ethylene glycol 21 1 70 17 8 77 1616 6 86 Ethylene glycol monoethy ether glycol monoethyl ether 1279 Be 41968 41951 Ethylene glycol monomethyl 1339 4392 77 Formic acid 1299 4261 1 04 Ethyl iodide Ethylene bromide 20 54 fe emo ce em al l om m om 2 39 4 28 2 11 4 28 21 1 70 2 69 5 84 37 8 100 2 06 3 97 21 1 70 7 4 26 4 37 8 100 4 91 13 7 21 1 70 26 4 37 8 100 13 6 67 1 122 97 4 660 2 160 5775 172 Gas oils 21 1 70 13 9 37 8 100 7 4 Gasolines 15 6 60 0 88 37 8 100 0 71 foro Pres essa ass pesca Glycerine 50 Water Glucose 37 8 100 7 7M 22M HN 150 77 2420 Quid 1252 2121 4107 4077 gt Tre fame fer 0 se n Heptane 17 8 224 115
7. STEP 1 HORIZONTAL LINE TRANSDUCER TRANSDUCER SHAPE TRACING Figure 4 4 E Z Mount STEPS 2 3 STRAIGHT EDGE PRODUCED BY FOLDING GAUGE PAPER Figure 4 4 2 Mount STEPS 4 6 MARKING POINT 3 O CLOCK POSITION STRAIGHT EDGE Figure 4 4 G Z MOUNT STEP 7 FOLD MARKED E STRAIGHT EDGE EDGE Figure 4 4 H Z MOUNT STEP 8 4 4 3 2 Method continued 9 Mark along the new fold Figure 4 4 1 MARK ALONG THE FOLD 4 MARKED STRAIGHT EDGE EDGE FIGURE 4 4 1 Z MOUNT STEP 9 10 Draw a horizontal line along the pipe from the Measure the spacing from the inside centerline of the 3 o clock transducer position 100 Use a level to ensure that the line is level vvith the top of the pipe The line should be at least 3 inches 76 millimeters longer than the transducer spacing calculated by UltraScan or via Menu 25 LEVEL STRAIGHT EDGE OR BOARD CALCULATED TRANSDUCER SPACING For example if UltraScan calculates the spacing as 14 inches 356 millimeters draw a line 17 inches 432 millimeters long Figure 4 4 J Figure 4 4 J Z Mount srEP 10 MEASURE AT LEAST FROM HERE edge of the 3 o clock transducer and 3 INCHES mark this on the pipe Figure 4 4 K PIPE MARKING CALCULATED SPACING Figure 4 4 K Z MOUNT STEP 11 Wrap the paper firmly back on the pipe Have the point where the ends of the TARE paper come together line up with the
8. below provides guidelines for selecting a calibration method Calibration Method Function I Application Zero set calibration Zero flow set Zeroes the instrument for an actual Installations where flow can be no flow condition stopped Manual zero set Applies a manually entered offset to Where an offset is required all flow readings Scale factor Compensates for manufacturing Set by the factory to the value variations in the transducers imprinted on the transducers TABLE 3 After installing the meter you may find that a small adjustment to the zero point zero set calibration is required Zero set calibration allows the meter to read very close to zero under zero flow conditions There are 2 zero set calibration methods in Menu 51 the zero flow set method and the manual zero set method View the zero point used by the flowmeter in either of these methods by selecting Manual in Menu 51 After the instrument is properly zeroed it should display a stable reading well below 0 05 ft s 0 015 m s under zero flow conditions with the low flow cutoff disabled Prior to performing a zero set calibration verify the following e transducers are connected to the pipe instrument is reading flow e low flow cutoff is disabled to allow verification of calibration 3 13 1 a Zero Flow Set Method The best method of zeroing the instrument is to stop the flow and perform a zero flow set on the pipe The purpose of the zero flow set is to zer
9. 00 GPM Figure 3 10 A Min Flow 2000 00 GPM Figure 3 10 B Damping 5 secs Figure 3 10 C Low Flow Cutoff 0 00 GPM Fieure 3 10 D 0 3 0 2 0 1 0 0 1 02 403 ZERO FLOVV DISPLAYED HERE Figure 3 10 E 3 10 Additional Setup Menus Within the FLOW Submenu continued Not included in the Quick Setup Configuration Low Signal Cutoff setup menu 35 Empty pipes or solids bubbles or voids in the flow stream may cause temporary drops in signal strength and erroneous readings Minimize the effect of these dropouts by setting a low signal cutoff which drives the flowmeter to the loss of signal LOS condition The low signal cutoff should be set at the minimum acceptable signal amplitude To set the low signal cutoff Low Signal Cutoff a Access the Low Signal Cutoff setup menu 35 Figure 3 10 F 0 b Enter the low signal cutoff and press ENTER Figure 3 10 F NOTE The value for the low signal cutoff should e v usually be set at approximately one half of the value Low Signal Action of the signal strength present under flow conditions Zero Hold Typically signal strength is not significantly affected by flow rate Figure 3 10 G c Select one of the following e ZERO the flowmeter drops the reading to zero during LOS condition e HOLD the flowmeter holds the last valid reading during LOS condition for about 3 seconds Figure 3 10 G 3 11 Additional Setup Menus With
10. AC adapter and verify that the unit operates properly 6 2 Charging the Printer Battery Charging the printer battery is a simple procedure Connect the printer to the printer power cable on the breakout box if battery charger AC adapter is connected Note the following cautions PRIOR to charging the printer battery e Ifthe battery is fully discharged the battery charge time is 15 hours DO NOT charge for more than 24 hours WARNING e Do not connect the battery charger AC adapter directly to the printer The voltage and polarity output of the charger do not match required input of the printer If they are directly connected the printer battery can explode or the WARNING printer can be seriously damaged 41 6 3 Charging the Flowmeter The DCT7088 is a DC powered instrument that normally operates from the internal 12 V battery supplied with the unit It may also be powered by one of the following sources which connect to the 12 15 Vdc input on the breakout box battery charger AC adapter which converts a 90 to 64 Vac 50 60 Hz 15 W input to a 15 Vdc output e automobile cigarette lighter adapter which provides a 12 Vdc output If the battery charger AC adapter is connected it simultaneously powers the flowmeter and recharges or maintains the charge on the internal battery The battery charges at a slower rate when the charger adapter is used to power the unit and charge the battery 6 4 Replacing Sonic Coupling Com
11. Figure 3 6 D 0 x0 16Gal 3 6 5 Signal Strength Lovv Signal Cutoff 04 FiaunE 3 6 D This display indicates the values for signal strength and SigStr low signal cutoff Figure 3 6 E Cutoff Figure 3 6 E 3 7 Additional Setup Menus Within the PIPE Submenu Not included in the Quick Setup Configuration Following are setup menus not included in the Quick Setup Configuration detailed in Section 3 5 page 10 Setup menus are used primarily to enter configuration data or to view the flowmeter s current configu ration settings The following setup menus are located within the PIPE submenu and are not required entries in the Quick Setup Configuration Pipe Wall Thickness setup menu 11 Figure 3 7 A Pipe Wall Thickness Pipe Sound Speed setup menu 14 This menu can only be configured if OTHER was selected as the 0 38 inches pipe material in Menu 13 Enter the pipe sound speed If OTHER was NOT selected as the pipe material this menu is available by the direct access FIGURE 3 7 A method only and functions as a view only display to Pipe Sound Speed indicate the pipe sound speed as programmed in the flowmeter s database Figure 3 7 B 10440 FPS Pipe Inside Roughness setup menu 15 This menu Figure 3 7 B can only be configured if OTHER was selected as the pipe material in Menu 13 Data on this parameter are P ipe Roughnes s available from the Cameron Hydraulic Data Book published by Ingersoll Rand Ent
12. PR ezis edid Siqneq l plepucis 19 19 19 19 19 19 19 27 Fen ees Bujur 1uauaJ Jajawelg episu s u ul ul CO 1e8jawelq pisino pue qi s l ulrelq pisul S SSEIO pJepuejs edid uoJ ajnona V lqEL 48 APPENDIX B FLuiD PROPERTIES B 1 Fluid Sound Velocities amp Kinematic Viscosities This section provides a table of fluid sound speeds and kinematic viscosities The information is based on material from the Cameron Hydraulic Data Book 17th ed Ingersoll Rand 1988 and Table of Physical and Chemical Constants 13th ed Longmans 1966 Note that viscosity does not have as significant an effect on flow accuracy as sound speed since viscosity is only used to calculate flow profile Even a comparatively large error in viscosity results in a change of only 2 to 5 percent LIQUID Acetic anhydride Acetone CH COCH Acetylene tetrabromide Acetylene tetrachloride Alcohol ethyl grain methyl wood CHOH propyl ewm us l em 49 iso HscAmyether ether Aniline 20 1656 68 5432 4 37 HET ss a 4 Asphalt blended RC 0 MC 0 SC 0 RC 1 MC 1 SC 1 RC 2 MC 2 SC 2 RC 3 MC 3 SC 3 RC 4 MC 4 SC 4 RC 5 MC 5 SC 5 RS 1 MS 1 SS 1 Asphalt emulsions Fed 2 V VI 25 77 159 324 37 8 100 60 108 37 8 100 518 1080 50 122 159 324 50 122 518 1080 60 140 215 430 50 122 1295 2805 60 14
13. Primary Display menus 00 through 04 Nor The flowmeter will not use the new parameters until accessing a Primary Display 3 5 Quick Setup Configuration The Quick Setup procedure contains the minimal steps required for flowmeter configuration These steps enable the flowmeter to calculate transducer spacing acquire ultrasonic signal and measure flow The number in parentheses after the required menu is the 2 digit address to directly access that menu 1 Select a proper transducer site according to Section 4 page 29 2 Access the Pipe submenu This submenu contains setup menus related to the pipe parameters such as pipe inside diameter ID and pipe outside diameter OD Pipe Wall Thickness is an additional setup menu within the Pipe submenu If Thickness 11 Pipe ID 12 parameters for any 2 of the following 3 setup menus are entered the flowmeter calculates the remaining parameter automatically Pipe OD 10 Pipe Wall Nor Accuracy is directly affected by the square of an error in pipe dimensions actual measurements not nominal must be entered a Selectthe PIPE OD menu 10 Figure 3 5 A Pipe OD is displayed Enter the value for the pipe OD and press ENTER Press the DOWN ARROW and 13 87 inches select Actual NOTE If you know the pipe circumference but not the OD enter the circumference value instead and press ENTER Press the DOWN ARROW and Figure 3 5 B Select Option is displayed Select Circum The fl
14. be configured if OTHER was selected as the fluid Fluid Sound Speed type in Menu 20 Enter the fluid sound speed If OTHER was NOT selected as the fluid type this 4863 33 FPS menu is available by the direct access method only and functions as a view only display to indicate the Figure 3 9 A fluid sound speed as programmed in the flowmeter s database Figure 3 9 A Fluid Viscosity setup menu 22 This menu can only R be configured if OTHER was selected as the fluid Fluid Viscosity type in Menu 20 Enter the fluid viscosity If OTHER 1 130 cst was NOT selected as the fluid type this menu is available by the direct access method only and Figure 3 9 B functions as a view only display to indicate the fluid viscosity as programmed in the flovvmeter s database Figure 3 9 B 3 10 Additional Setup Menus Within the FLOW Submenu Not included in the Quick Setup Configuration Max Flow Range setup menu 31 and Min Flow Range setup menu 32 Use these menus to enter the minimum and maximum flow values for setting the volumetric flow range Setting the optimum flow range generally improves the flowmeter s response time Figures 3 10 A and 3 10 B NOTE Whenever the pipe ID is changed the flowmeter returns the volumetric flow range to its default settings The default settings are the minimum and maximum flows for the new pipe ID that occur at 32 and 32 ft s 9 76 and 9 76 m s Damping setup menu 33 Use this menu
15. eee sive nenes conca 10 3 6 Pnmary DISplays fuer analitico etnea 12 3 6 1 Flow Net Totalizer 00 i 12 3 6 2 Ge VE e Le EE 12 3 6 3 Flow Positive Totalizer 02 rare nennen enne rennen nnns 12 3 6 4 Flow Negative Totalizer 03 13 3 6 5 Signal Strength Low Signal Cutoff 04 LA nac cc nn cnc crac 13 3 7 Additional Setup Menus Within the PIPE Submenu nanen eee eseve nene zere 13 3 8 Additional Setup Menus Within the LINER Submenu errar 14 3 9 Additional Setup Menus Within the FLUID Submenu i 14 3 10 Additional Setup Menus Within the FLOW Submenu rrenan 15 3 11 Additional Setup Menus Within the TOTAL Submenu i 16 3 12 Additional Setup Menus Within the OPTIONS Submenu aaa 17 3 13 Additional Setup Menus Within the CALIBR Submenu 19 3 13 1 Zero Set Calibration ET 20 3 13 1 a Zero Flow Set Method i 20 3 13 1b Ma n al ZO di ada a 21 3 13 2 Scale Factor Calibration arrancan 21 3 13 3 Other CALIBR Submenu Options acc ccoo narran rca cnn rra 22 3 14 Additional Setup Menus Within the 4 20mA 22 3 15 Additional Setup Menus Within the ALARMS Submenu sss 23 3 15 1 Programming the Alam e 24 3 15 2 Viewing BET 25 3 16 Additional Setup Menus Within the DATA LOG Submenu raras 25 3 17 A
16. their fullest extent The knobs will stop at the end of the adjustment and should not be removed Place the rack against the pipe and wrap the chains around the pipe With excess slack removed from the chain connect the chains to the chain hooks Tighten the chain hooks by screwing down both chain adjustment knobs 6 Install the portable transducers a e Position the slides according to the calculated spacing The top rail of the rack is marked in inches and the bottom rail is marked in millimeters Apply sonic coupling compound to a transducer face and with the cable connector end of the transducer towards the outside of the rack install the transducer beneath one of the slides The inside face of the transducer should align with the inside edge of the slide Tighten the knobs on the slide evenly to hold the transducer in place Repeat this procedure with remaining transducer 31 4 3 Spacing amp Mounting the Transducers continued 7 Ensure the transducer face is aligned normal to the pipe Figure 4 3 A below The transducer face alignment is particularly critical on small pipes due to pipe curvature Notice that the properly installed transducer contacts the pipe at the pipe s centerline and that the gaps on either side of the centerline are equal The notches on both ends of the portable transducer rack allow the assembly to self align to the curvature of the pipe Check the contacts of the notches to the pipe and
17. to a pipe within a matter of minutes and flow measurements may be made without interrupting the flow or modifying pipework The DCT7088 can be configured using an integral keypad for entering variables such as pipe size pipe material wall thickness and fluid type refer to Section 3 page 7 The flowmeter can also be remotely configured and monitored via the RS232 interface mode using the D Link data link utility refer to Appendix D page 64 Another alternative to flowmeter configuration is to use the UltraScan utility which also graphically analyzes the signal in a Microsoft Windows environment UltraScan manual provided on PolyCD 1 2 Theoryof Operation Sound waves travel in fluids at a specific velocity depending on the type of fluid If the fluid is moving the sound wave travels at a velocity equal to the sum of the speed of sound in the fluid and the velocity of the fluid itself relative to the transducer A sound wave traveling in the same direction as the fluid flow down stream will arrive sooner than a sound wave traveling against the flow upstream A transit time flowme ter operates by measuring both the absolute travel time of each sound wave and the difference in time required for the waves to travel between an externally mounted downstream and upstream transducer Figure 1 2 A below Based on the transit time of the 2 sound waves the flowmeter calculates the average fluid velocity UPSTREAM TRANSDUCER FLOW gt
18. 0 37 8 n Hexane We mil xl m ndustrial lubricants Turbine oils 15 6 60 647 93 3 200 14 5 15 6 60 367 93 3 200 11 15 6 60 259 93 3 200 8 15 6 60 151 93 3 200 73 15 6 60 93 3 200 37 8 100 23 34 54 4 130 13 18 37 8 100 34 72 54 4 130 18 25 37 8 100 72 83 54 4 130 25 39 37 8 100 75 119 54 4 130 39 55 56 om ve as Machine lubricants cont Cutting oils 37 8 100 30 40 54 4 130 17 23 37 17 100 40 46 m 17 130 m 26 Indum o 2215 500 7265 7265 Ink printers 37 8 100 550 2200 54 4 130 238 660 Insulating oil 21 1 70 24 1 max 37 8 100 11 75 max Kerosene 20 68 2 71 mer 131 5 77 PA WE Lard 37 8 100 62 1 54 4 130 34 3 Lard oil 37 8 100 41 47 5 er 4 Mest SE 4 27 1 Linseed oil 37 8 100 30 5 54 4 130 18 94 Menhadden oil 37 8 100 29 8 57 4 NEI na 2 Mercury 00 1118 BE a s acetate 68 EAT 44 mz 1131 86 dur Methyl alcohol alcohol 1121 2 1 sa 57 wm Tre Jens Ter wonnen m l ml nl sef wossten sl mil vl zl m T l aul Molasses A first 37 8 100 281 5070 54 4 130 151 1760 B second 37 8 100 1410 13 2M 54 4 130 660 3 3M C blackstrap 37 8 100 2630 55M 54 4 130 1320 16 5M Neatsfoot oil 37 8 100 49 7 54 4 130 27 5 Nitrobenzene 68 1 67 23 8 1462 75 4795 I Nonene 20 Nonene n 17 8 0 1 728 37 8 100 0 807 n Octane 17 8 0 20 68 37 8 100 0 l me
19. 0 540 1080 60 140 1725 4315 82 8 180 270 540 60 140 6040 18340 82 8 180 647 1295 25 77 33 216 37 8 100 19 75 25 77 215 1510 E JS X 75 367 pum 216 RE 7 o 75 50 Automotive crankcase oils 17 8 E max sel mf sro m l s l s s se ml senes muar 777 CT f T m N N SAE 150 Beer Benzene Benzol CgHg E Bismuth Lele la 100 212 11 6 Bromine o EE EE e ia 30 0 35 TO ER OR Butyric acid n 68 1 61 e 2 Cadml m o 21 2150 etl ea sm ml l om ef Calcium chloride 18 3 1 156 BCO J ES O Carbolic acid phenol 11 118 Carbon tetrachloride CCI 20 68 0 612 37 8 100 0 53 Carbon disulphide CS Castor oil 259 325 98 130 China wood oil 20 6 69 308 5 ES 77 5 Chiorine o me Chloroform 0 38 0 35 Cocoanut oil 37 8 100 29 8 31 6 54 4 130 14 7 15 7 Cod oil 37 8 100 32 1 54 4 130 19 4 Corn oil 54 4 130 28 7 100 212 8 6 Corn starch solutions 22 Baume 21 1 70 32 1 37 8 100 27 5 24 Baume 21 1 70 129 8 37 8 100 95 2 25 Baume 21 1 303 37 8 173 2 52 Cotton seed oil 37 8 100 37 9 54 4 130 20 6 Crude Oil 15 6 60 54 4 130 40 API 15 6 60 54 4 130 35 6 API 15 6 60 17 8 54 4 130 4 9 32 6 API 15 6 60 23 2 54 4 130 7 1 Salt Creek 15 6 77 54 4 25 1 Cyclohexane E O 1278 ce 41 E Cyelohexano o 1622 5320 Decane n 17 8 2 36 77 8 e 1
20. 3 Currently the only selection available is Figure 3 5 H STANDARD which MUST be selected for all applications using clamp on transducers Transducer Mount including high temperature transducers Figure 3 5 H SN 2 W WV WW b Access the Transducer Mounting setup menu Figure 3 5 I 24 and select the desired mounting method Figure 3 5 1 Transducer Spacing 6 Access the Transducer Spacing view only menu 5 93 Inches 25 Note the required spacing between transducers Figure 3 5 J Figure 3 5 J 3 5 Quick Setup Configuration continued 7 Access the Flow Units setup menu 30 within the E FLOW submenu Use this setup menu to select the Flow Units flow rate units Volumetric units are displayed first followed by the associated time per units Gallons a Select one of the available volumetric units Figure 3 5 K Figure 3 5 K b Press the DOWN ARROW and the time per unit options are displayed Select the desired option Sec Min Hour Figure 3 5 L Flow Units Per FIGURE 3 5 L 8 Install the transducers on the pipe using the spacing provided by the flowmeter and connect the transducer cables to the flowmeter 9 Access a Primary Display 00 through 04 to complete the configuration process If the flowmeter and transducers are properly installed and a steady flow is present the flow and signal strength readings should be relatively stable flow until the new value is entered and a Primary Display is accesse
21. 81 Datalog intervals must be entered in whole seconds with a minimum interval of 1 second Figure 3 16 F Log Interval 60 secs e View menu Use this menu to view which log files are stored in memory the file sizes and amount of log memory still available Additionally use this menu to E delete log files Erase Log File Figure 3 16 F 1 Access Menu 80 and select View Are you sure 5 Yes 2 Scroll through the log file with the UP DOWN Figure 3 16 G ARROWS to locate the file you want to delete 3 Press ENTER and Figure 3 16 G is displayed 4 Press 5 and Figure 3 16 H is displayed Really sure Yes Erase Log File 5 Press decimal point and Figure 3 16 l is Figure 3 16 H displayed informing you the log is deleted Data log Erased Figure 3 16 1 26 3 17 Additional Setup Menus Within DIAGNOSTICS Submenu Not included in the Quick Setup Configuration The DIAGNOSTICS submenu contains various view only menus which display important diagnostic parameters that are currently used or calculated by the flowmeter These parameters are helpful when configuring or troubleshooting the flowmeter e Signal Strength Margin display 90 Displays the signal strength in percentage and the margin The signal strength value displayed is the average of the signal strengths for the upstream and downstream transducers Margin is an indicator of signal quality and is generally greater than 5 Signal
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23. ND VIEW Figure 4 4 P 4 4 4 WV and WW Methods For applications with pipe diameters smaller than 2 inches 50 millimeters the WV and WW methods are options to achieve higher accuracy and stability when reasonable signal strength can be obtained 10 or higher 37 4 5 Small Pipe Applications In this section small pipe applications refer to the following pipe sizes e stainless steel or brass 1 0 to 3 5 in 25 4 to 88 9 mm PVC carbon steel or other 1 0 to 2 5 in 25 4 to 63 5 mm If signal strength is greater than 10 we recommend the W mounting method for pipe sizes 3 5 in 63 5 mm or smaller and the WW mounting method for pipe sizes 2 0 in 50 8 mm or smaller The pipe curve effect on small pipe applications can cause multipath signals and measurement uncertainty Removing extra compound along the transducer sides can eliminate the side wave paths as seen in Figure 4 5 A below Follow these steps to eliminate these side wave paths 1 Apply coupling compound as usual on to the coupling surfaces and clamp the transducers onto the pipe 2 Usea pen sized standard screwdriver to remove the extra grease between the transducers and the pipe Figure 4 5 A below EXTRA GREASE iL EXTRA GREASE REMOVED TILTED BEAMS MAIN BEAM TRANSDUCER TRANSDUCER PIPE FiGURE 4 5 A For high temperature or outdoor small pipe applications use the foam tape strips shipped vvith the flovvmeter to block the side wav
24. Scale Password attempts to change the scale factor New Sc Fact Passwrd To change or disable the scale factor password a Access Menu 48 Figure 3 12 J b Enterthe new scale factor password and press Scale Password ENTER Figure 3 12 K Figure 3 12 K Accepted NOTE The system password function must be disabled to allow the scale factor to be changed Figure 3 12 L without entering a password Scale Password c Enter the old scale factor password and press ENTER If entered correctly Figure 3 12 L is Rejected xxx displayed If entered incorrectly Figure 3 12 M is Fi 12 M displayed Goes d Access Menu 00 Unit ID Unit ID identification Number setup menu 49 0 This number is determined by the operator to identify the specific instrument or site Any whole number Figure 3 12 N between 1 and 60 000 may be entered Figure 3 12 N 3 13 Additional Setup Menus Within the CALIBR Submenu Not included in the Quick Setup Configuration Within the CALIBR submenu is the Calibration Group menu 50 Figure 3 13 A which contains 4 setup menus Zero Set Scale SS Comp Date Menus 51 through 54 Calibration mSet Zero mScale Figure 3 13 A 3 13 1 Zero Set Calibration An important step in assuring accurate flow measurement is the proper calibration of the instrument and proper installation The calibration methods must be performed for the particular pipe that is to be metered Table 3
25. Start mAuto manually starting stopping the datalogger The appropriate option start or stop is displayed depending on whether the logger is currently Figure 3 16 A recording Stop Log To stop the log Are you sure 5 Yes 1 Access Menu 80 and select Stop Figure 3 16 B 2 Figure 3 16 B is displayed press 5 b Auto This option allows the user to program the logger for a future start and stop time To use this function 1 Access Menu 80 and select Auto 2 The current programmed start stop times aredisplayed Figure 3 16 C page 26 3 Press ENTER Prompts are displayed requesting day hour minute and second information for the start stop times Figure 3 16 D page 26 Press ENTER after EACH entry 25 3 16 Additional Setup Menus Within the DATA LOG Submenu continued Not included in the Quick Setup Configuration Once the start stop times are entered the new times are displayed Figure 3 16 E Start The datalogger will now start and stop automatically at the Stop preset times If the logger is running the user can manu ally stop the logging by selecting Stop in Menu 80 Ficure 3 16 C Start Log Ensure that flow measurement units time AN and date are correct on the flovvmeter Day 5 PRIOR to beginning the log Do not change any of these parameters vvhile the logger is actively or before transferring the data Figure 3 16 D Start Stop Figure 3 16 E nterval menu
26. Thermo ELECTRON CORPORATION DCT 7088 PoRTABLE DIGITAL CORRELATION TRANSIT Time ULTRASONIC FLOWMETER User MANUAL Formerly P N 1 0561 007 Thermo Polysonics Rev B 02 03 Thermo ELECTRON CORPORATION User MANUAL DCT7088 PoRTABLE TRANSIT TIME ULTRASONIC FLOWMETER FIRMWARE VERSIONS 6 00 ONVVARD FeBRUARY 2003 Rev B NOTICE Read this manual before working with the product For personal and system safety and for optimum performance make sure you thoroughly understand the contents before installing using or maintaining your transit time instrument For equipment service needs outside the United States contact your nearest Thermo represen tative Within the United States the Thermo Service Department is your single point contact for all Thermo equipment service needs If at any time you are not sure what to do you have a question about using the product or you have a service or support request call the center at 713 272 0404 This contact is your fastest link to quick and complete answers about any Thermo product or service Thermo Electron Corporation Process Instruments Division 9303 W Sam Houston Pkwy S Houston TX 77099 Phone 713 272 0404 Fax 713 272 5388 Web www thermo com Acknowledgements for product names used in this manual belong to the following companies Dow Corning is a registered trademark of Dow Corning Corporation Excel for Windows is either a registered trademark or trade
27. adjust as necessary a o 10 PROPER INSTALLATION INCORRECT INSTALLATION FIGURE 4 3 A 8 Connect the transducer cables to the flowmeter The transducers should be mounted on the pipe in relation to the direction of ik flow as shown in Figure 4 3 B below Reversing the position of the upstream and downstream transducers or reversing the transducer cable connections to the instrument results in negative flow readings FLOW BLUE BANDED END DOWNSTREAM TRANSDUCER RED BANDED END UPSTREAM TRANSDUCER Figure 4 3 B e Refer to Figure 1 6 page 4 to locate the upstream and downstream connectors on the side of the meter The upstream transducer cable has red banded ends and the downstream transducer cable has blue banded ends Figure 4 3 B above 9 If maximum accuracy at low flow rates is important calibrate the flowmeter according to Section 3 13 page 19 The flowmeter is now capable of accurately measuring velocity and flow 32 SLIDE KNOB CHAIN ADJUSTMENT KNOB Figure 4 3 C PORTABLE TRANSDUCER RACK INSTALLATION 4 4 Transducer Mounting Methods There are several methods of mounting the transducers The best method is determined by the specific application Complete steps 1 5 in Section 4 3 page 31 and refer to the following sections for instructions on how to properly mount the transducers with one of the available mounting methods 4 4 1 V Method The V method Figure 4 4 A below is considered
28. ara 61 fo emo er see ost l vl 25 77 37 8 100 130 54 4 sl w 20 68 37 8 100 Water distilled 20 1482 9 4864 1 0038 60 15 6 1 13 54 4 130 0 55 86 6 95 2 39 9 44 3 m ES ES 37 8 100 35 39 6 54 4 130 19 9 23 4 20 68 0 93 22 1352 72 4435 50 1425793 140 60 50872 1550579 14906204 176 80 50987 1554084 1519428 194 go 50856 155001 20 10 5093 6 1552 529 5074 8 1546 799 9 1528 481 1536 009 5068 4 1544 848 1542 166 see next page for graphical representation 62 WATER SOUND SPEED VERSUS TEMPERATURE 41 50 59 68 77 85 95 104 113 122 131 140 149 158 167 176 185 194 203 212 F B 3 Relationship Between Specific Gravity Viscosity amp Sound Velocity for Petroleum Products This figure is a graph showing the approximate relationship between specific gravity viscosity and sound velocities for aliphatic hydrocarbons petroleum products SPECIFIC KINEMATIC APPROXIMATE RELATIONSHIP BETWEEN SPECIFIC GRAVITY UNITS S C MECOSITY AND SOUND VELOCITY FOR PETROLEUM PRODUCTS kald TUD BDO 300 1000 1100 1200 1300 1400 1500 1600 SOUND SPEED MS rr BEE TABLE FOR VISCOSTY OF VARIOUS TYPES OF CRUDE DIL MOTE MULTIPLY M S Er 1 28 TO OBTAIN FTS IF ENGLISH UNITE ARE VISCUOSITIES ARE APPROMKMATE THIS NOMOGRAPH REGLIRED SHOULD EE APPLIED T ALIPHATKC HYDROCARBONE AMD MIXTLIRES THEREOF OHLY 63
29. ated up to 392 F 200 C AN The transducers should not be bonded vvith epoxy 42 6 5 Troubleshooting amp Support 6 5 1 General If the unit does not perform satisfactorily complete the following steps until the problem is resolved Verify that the flowmeter is properly installed and that the installation site is suitable Verify that the flowmeter is properly configured Perform a Master Erase Contact the installation contractor or representative through whom the flowmeter was purchased Contact Thermo to attempt to resolve the problem over the phone If we determine the problem cannot be resolved over the phone return the entire unit to the factory DAKON 6 5 2 Local Representative Support The local Thermo representative is the first contact for support and is well equipped to answer questions and provide application assistance Your representative has access to product information and current software revisions 6 5 3 Service amp Returns If it becomes necessary to contact the Thermo Service Center with software or hardware problems please have the following information available signal strength transducer type and mounting configuration pipe orientation pipe OD pipe ID pipe material fluid type e liner material e liner thickness model and serial numbers To return an instrument 1 Contact the Thermo Service Center for an RMA number issued by the service representative The receiving do
30. below Get Log and select the log file you want to check Click Get Log The log information downloads and displays as seen in Figure C 3 B page 77 Log information can be downloaded from the meter when the log is still running so you can monitor the flow data without stop the log Refer to Section 4 16 page 28 for instructions on setting up the datalogger BE DLink1 1 6 Datalog Retrieval DCT Series o batalog Loaded Figure C 3 A SELECTING A LOG TO DOWNLOAD 65 z BLinki 1 6 Datalog Retrieval OCT Series File 110802 1 Started 11 8 2002 1 49 00 PM 14 Flow points at 60 second intervals alves range from 0 4562005 to 15072564 GPH 1 45 00 PM 15 52B7H 1 50 00 PM 15 46509 1 51 00 PM 15 36555 Figure C 3 B DISPLAYED LOG C 4 Saving amp Loading Datalogs To save the current displayed datalog to a file go to File and select Save Log The file can then be opened in data processing software such as Excel for Windows To load a previously saved log file go to File and select Load Log refer to Figure C 4 page 78 66 BA DLink1 1 6 Datalog Retrieval DCT Series File Log About Quit No Datalog Loaded Figure C 4 67
31. ck does not accept shipments without the RMA number You can contact the us at any of the following phone 713 272 0404 e fax 713 272 5388 e web www thermo com address listed below 2 Ensure the instrument is well packed in its original shipping box if available 3 Include a letter fully explaining the symptoms of the failure as well as detail describing the application where the unit was being operated type of fluid pipe size pipe material fluid velocity etc 4 Write the RMA number on the outside of the shipping box 5 Sendthe unit freight paid to Thermo Electron Corporation Process Instruments Division 9303 W Sam Houston Parkway S Houston TX 77099 USA 43 6 5 4 Upgrades Thermo provides the most current software for your meter at time of shipment Find out about upgrades by contacting Thermo via mail fax phone or web Upgrades are available using the RS232 port anda remote terminal 6 6 Warranty Statement Thermo products are warranted to be free from defects in material and workmanship at the time of ship ment and for one year thereafter Any claimed defects in Thermo products must be reported within the warranty period Thermo shall have the right to inspect such products at Buyer s plant or to require Buyer to return such products to Thermo plant In the event Thermo requests return of its products Buyer shall ship with transportation charges paid by the Buyer to Thermo plant Shipment of repaire
32. d or replacement goods from Thermo plant shall be F O B Thermo plant A shop charge may apply for alignment and calibration services Thermo shall be liable only to replace or repair at its option free of charge products which are found by Thermo to be defective in material or workmanship and which are reported to Thermo within the warranty period as provided above This right to replacement shall be Buyer s exclusive remedy against Thermo Thermo shall not be liable for labor charges or other losses or damages of any kind or description including but not limited to incidental special or consequential damages caused by defective products This warranty shall be void if recommendations provided by Thermo or its Sales Representa tives are not followed concerning methods of operation usage and storage or exposure to corrosive conditions Materials and or products furnished to Thermo by other suppliers shall carry no warranty except such suppliers warranties as to materials and workmanship Thermo disclaims all warranties expressed or implied with respect to such products EXCEPT AS OTHERWISE AGREED TO IN WRITING BY Thermo THE WARRANTIES GIVEN ABOVE ARE IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED AND Thermo HEREBY DISCLAIMS ALL OTHER WARRANTIES INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FOR PURPOSE 44 APPENDIX A Pipe SCHEDULES This appendix provides pipe schedules as a convenient reference for the following pipe
33. d to accept If any of the above setup parameters are changed the flowmeter stops measuring ik the new value 3 6 Primary Displays The Primary Displays are for viewing only and cannot be configured Primary Displays include displayed values for flow rate totalizers velocity signal strength or low signal cutoff menus 00 through 04 3 6 1 Flow Net Totalizer 00 The Flow Net Totalizer is the standard display used under normal operating conditions It displays the flow rate and net totalizer value If the net totalizer is not currently enabled the last net totalized value is displayed Figure 3 6 A 3 6 2 Flow Velocity 01 FIGURE 3 6 A The Flow Velocity display indicates the flow rate and 0 00 GPM fluid velocity Velocity is displayed in feet per second FPS if ENGLISH is selected as the measurement unit in 0 00 FPS Menu 42 and in meters per second MPS if METRIC is selected Figure 3 6 B Figure 3 6 B 3 6 3 Flow Positive Totalizer 02 0 00 GPM This display indicates the flow rate and the totalized flow in the positive flow direction If the positive totalizer is not currently enabled the last nettotalized value is displayed Ficure 3 6 C Figure 3 6 C 0 x0 1Gal 12 3 6 4 Flow Negative Totalizer 03 This display indicates the flow rate and the totalized flow in the negative flow direction If the negative totalizer is 0 00 GPM not currently enabled the last nettotalized value is displayed
34. dditional Setup Menus Within DIAGNOSTICS Submenu sse 27 3 18 Additional Setup Menus Within PRINT SubmenuU 27 4 Wiring amp Installing the Transducers mete 29 Sid BEE 29 4 2 Site Selection amp Preparation ice te ee tete ee eter eee tete e eee eee vitete rra 29 4 3 Spacing amp Mounting the Transducers i 31 4 4 Transducer Mounting Methods AAA 33 CES RA Ettel EE 33 4 42 W Melhod susa IM ERE 34 4 4 SHME hodh ie Lelli ella rici a i licia s 34 4 4 4 WV and WW Methods i 37 4 5 Small Pipe Applications u r tcu opt ee terr iei eave cost rete retento er dn E o n E Mr dtt os 38 5 Emergency Overrides 8 Master Erase 40 5 1 Emergency Overrides AAA 40 5 2 Performing a Master Brase c tee ee ra a Ron edh E Laub vex rende edi 40 6 Flowmeter Maintenance amp Troubleshooting 41 6 1 Replacing TE 41 6 11 Flowmetet Fuse Re teret nri bebe n bm E ra p Rr EE Rn era es 41 6 1 2 Breakout Box FUse tegit eie de d ni NER NEAR VERA das asia A ETE NOR re 41 6 2 Gharging the Printer Battery aiii E 41 6 3 Charging the A 42 6 4 Replacing Sonic Coupling nennen res vene tee terre eee 42 6 5 Troubleshooting amp Support i 43 6 51 General psh tete eR
35. e liner fluid transducer and flow menus 10 35 by pressing MENU followed by 97 Print Diagnostics menu 98 Print all parameters associated with the DIAGNOSTICS submenu 90 94 by pressing MENU followed by 98 Print Current Screen menu 99 Print the current display by pressing MENU followed by 99 28 4 VViRING amp NSTALLING THE TRANSDUCERS 4 1 Wiring The transducer terminals and cables are arranged in pairs and are labeled DN STREAM and UP STREAM The downstream transducer cable has blue banded ends the upstream transducer has red banded ends GROUND FIGURE 4 1 SIGNAL Y Locate the symbol seen in Figure 4 1 This symbol is on both YI pairs of terminals and indicate which terminals should connect to the center wire conductors and which should connect to the coaxial shields 4 2 Site Selection 8 Preparation Prior to installing the transducers a proper site must be selected to ensure accurate measurement Examples of site recommendations are illustrated in Figures 4 2 A below and 4 2 B page 30 GOOD NEVER FiGURE 4 2 A 29 GOOD STORAGE TANK OPEN TOP IF PIPE IS FULL GRADE E 5 DIA FLOW 10 DIA Figure 4 2 B Use the following guidelines when selecting the transducer site Choose a section of pipe which is always full of liquid such as a vertical pipe with up flow or a full horizontal pipe The site should have a straight run equivalent to at least 10 pi
36. e air or solids in the liquid thick scale poorly bonded linings or very large pipes In addition the Z method generally works better on larger diameter pipes where less pipe length is required for mounting Ensure Z is the selected mounting method ULTRASONIC SIGNALS FLOW TRANSDUCER SPACING TOP VIEW END VIEW Figure 4 4 C Z Mount 34 4 4 3 2 Method continued 1 Establish a reference at both the 3 o clock and 9 o clock positions on the pipe Figure 4 4 D Place a transducer at the 3 o clock position Trace the shape of the 3 o clock transducer along its inside edge opposite the cable connection Draw a horizontal line at its center Remove the transducer Figure 4 4 E Obtain a continuous sheet of paper longer than the circumference of the pipe Calculator paper tape or thermal printer paper works well for this Fold one end of the paper across the pipe s width to produce a clean straight edge Line the fold of the paper up with the horizontal centerline of the 3 o clock transducer Figure 4 4 F Wrap the paper firmly around the pipe and mark the intersection point where the fold comes in contact with the rest of the paper Figure 4 4 G Remove the paper from the pipe Place the fold and intersection mark together again and fold the paper exactly in half Figure 4 4 H 35 TOP 9 O CLOCK gt 3 O CLOCK REFERENCE REFERENCE POINT POINT BOTTOM Figure 4 4 D Z MOUNT
37. e paths Other tape materials generally do not satisfy performance or safety specifications Please contact the Thermo Customer Service Department when more tape strips are needed 1 Wipe grease off the coupling surfaces of both transducers Clean the surfaces with detergent and let dry Figure 4 5 B Figure 4 5 B APPLYING FOAM TAPE STRIPS STEP 1 38 Draw 2 lines on each transducer surface with a pencil so that the band defined by the lines is in the middle of the surface The spacing between the 2 lines should be as follows 3 0 to 3 5 in pipes 0 50 in 76 2 to 88 9 mm pipes 12 7 mm 2 5 to 3 0 in pipes 0 44 in 63 5 to 76 2 mm pipes 11 2 mm 2 0 to 2 5 in pipes 0 38 in 50 8 to 63 5 mm pipes 9 7 mm 1 5 to 2 0 in pipes 0 32 in 38 1 to 50 8 mm pipes 8 13 mm 1 5 in and smaller pipes 0 25 in 38 1 mm and smaller pipes 6 35 mm Figure 4 5 C Remove the adhesive protection paper to expose the tape strips Place a strip on each side of the surface along the line Press the strips down to ensure good adhesion Figure 4 5 D Apply coupling compound to the space between the tape strips The optimum height of the compound layer is approximately one half the height of the tape strips Figure 4 5 E 39 weno LINES DRAWN ON TRANSDUCER Figure 4 5 C APPLYING FOAM TAPE STRIPS STEP 2 FOAM TAPE STRIPS a L Figure 4 5 D APPLYING FOAM TAPE STRIPS STEP 3 be FOAM TAPE STRIPS
38. eously in the Site Parameters setup menu in whichever site has the asterisk displayed Access a different site to automatically enter that site s stored parameters into the flowmeter for measuring flow To access a different site press ENTER scroll to the desired site and press ENTER again To avoid overwriting stored parameters and losing old data ensure that the desired site is active prior to entering the new set of parameters 3 12 Additional Setup Menus Within the OPTIONS Submenu continued Not included in the Quick Setup Configuration e RS232 Configuration setup menu 46 Use this menu to configure the RS232 port which allows the RS232 Mode flowmeter to connect to an IBM compatible PC using ULTRASCAN D Link the UltraScan refer to the UltraScan manual or D Link refer to Appendix C page 64 utilities Figure 3 12 C Figure 3 12 C a Access the RS232 Configuration setup menu 0 46 x 19200 N 8 1 b Select ULTRASCAN or D LINK Figure 3 12 D c Press the DOWN ARROW to display the baud rate selections The baud rate is the only RS232 parameter that can be selected The remaining parameters are preset Figure 3 12 D d Access Menu 00 Change System Password setup menu 47 The flowmeter is shipped from the factory with the system password disabled If a password is enabled the flowmeter requests the password when a user attempts to enter any configuration data Entering the correct password temporarily
39. er Negative Totalizer setup menu 40 Use this menu Totalizer to enable or disable the negative totalizer The on negative totalizer tracks the flow that moves in the negative direction from downstream transducer to Figure 3 11 E upstream transducer It is NOT affected by flow in the opposite direction Figure 3 11 E Totalizer Totalizer Reset setup menu 41 Use this menu to reset one or all of the totalizers Figure 3 11 F On Figure 3 11 F 3 12 Additional Setup Menus Within the OPTIONS Submenu Not included in the Quick Setup Configuration The OPTIONS submenu contains setup menus for several miscellaneous functions Measurement Units setup menu 42 Use this menu to select ENGLISH feet per second FPS or METRIC meters per second MPS measurement units Figure 3 12 A Measurement Units English Metric Site Parameters setup menu 43 This menu saves FIGURE o Te d the parameters for the pipe liner fluid transducer E and flow setup menus allowing them to be recalled Site Parameters later for a specific measurement site Several sites are available and are numbered The site number is displayed in Menu 43 in the lower left corner of the FIGURE 3 12 B screen and is followed by a colon See Figure 3 12 B for an example of a site numbered 1 1 3 507 In PVC As the setup parameters are entered in their respective menus during normal configuration the same parameters are saved simultan
40. er 1 5 Technical Specifications continued 1 5 3 Physical Transmitter NEMA 6 IP67 waterproof against accidental immersion splashproof with lid open Transducers encapsulated design with standard 16 ft 5 m cable length Weight approximately 11 Ibs 4 9 kg with 8 hour battery approximately 15 Ibs 6 8 kg with 16 hour battery 1 6 External Features O O 1 Thermo ELECTRON CORPORATION A o N Components Description Printer port provides output for optional external thermal printer connects to special cable which has 3 pin round connector on flowmeter end and DB9 connector on printer end ON OFF keys Battery Low light activates approximately 7 or 14 hours of operation depending on battery type automatic shutdown after approximately 1 additional hour Charging light Instrument on light Fuse 3 A 250 V protects flowmeter from battery overcurrent or short circuits Liquid crystal display LCD displays configuration selections flow rate totalized flow etc Keypad use to enter configuration parameters and control flowmeter functions Downstream transducer connector Upstream transducer connector Breakout box interface connector connects flowmeter to breakout box 1 7 Breakout Box Components Components Description 1 AC powercable 2 DC power output cable 3 DC power input connector connects DC power output cable to flowm
41. er s control panel Print Log Setup menu 96 Use this menu to configure the printer to print out flow data at a preset interval and or whenever an alarm activates Printed flow data include data from all enabled totalizers Flow data are printed in minimum maximum and average flow rates Minimum and maximum flow rates automatically reset at the end of each print period The average flow rate is the average over the print interval 27 3 18 Additional Setup Menus Within PRINT Submenu continued Not included in the Quick Setup Configuration Print Log Setup menu continued To configure the printer 1 Access Menu 96 Figure 3 18 A Print Select 2 Select an option from the following a NONE disable printer b FLOW print flow data at a preset log interval Figure 3 18 A c ALARM print flow data when an alarm activates Print Interval d BOTH print flow data at a preset log interval and when an alarm activates 30 sec 3 If you select FLOW or BOTH press the DOWN Figure 3 18 B ARROW to set the print interval Figure 3 18 B xNone Flov Alarm 4 Enter the print interval in whole seconds and press ENTER data to be printed If the print interval is interrupted by a power loss the printer 1 Operation errors may occur if the log interval is too short to allow the selected resumes at the specified interval after power is restored e Print Settings menu 97 Print all parameters associated with the pip
42. er the inside 0 000150 Ft roughness of the pipe If OTHER was NOT selected as the pipe material this menu is available by the direct access method only and functions as a view only display to indicate the pipe inside roughness as programmed in the flowmeter s database Figure 3 7 C Figure 3 7 C 3 8 Additional Setup Menus Within the LINER Submenu Not included in the Quick Setup Configuration Liner Sound Speed setup menu 18 This menu can only be configured if OTHER was selected as the liner material in Menu 16 Enter the liner sound speed If OTHER was NOT selected as the liner 8203 00 FPS material this menu is available by the direct access FIGURE 3 8 A method only and functions as a view only display to indicate the liner s sound speed as programmed in the flowmeter s database Figure 3 8 A Liner Sound Speed Liner Inside Roughness setup menu 19 This menu can only be configured if OTHER was selected Liner Roughness as the liner material in Menu 16 Enter the liner inside roughness If OTHER was NOT selected as the liner 0 001000 material this menu is available by the direct access method only and functions as a view only display to indicate the inside roughness of the liner as programmed in the flowmeter s database Figure 3 8 B 3 9 Additional Setup Menus Within the FLUID Submenu Figure 3 8 B Not included in the Quick Setup Configuration Fluid Sound Speed setup menu 21 This menu can only
43. eter 4 4 20 mA output terminals 5 Printer charger cable 6 RS232 serial port 7 Breakout box interface connector provides connections for DC power input from battery charger AC adapter for DC output cable for charging batter for RS232 serial port and for 4 20 mA current loop output terminals ISTT P RI TI 8 7 pin circular connector connects 3 Thermo breakout box to flowmeter mme 1 TATUR s 5 i BREAKOUT BOX HERMAL PRINTER 2 WIRING THE CURRENT Loop The 4 20 mA current loop module has an input terminal and an output terminal which are indicated on a label on the inside of the flowmeter door The current loop output is rated for a loop resistance of up to 1 k ohms and is isolated for up to 5 kV when loop powered The 4 20 mA module is shipped with the current loop self powered Switch the module to loop power by moving a jumper on the module Current loop modules which are loop powered must be driven from an external power supply In this case the flowmeter acts as a passive 2 wire transmitter PRIOR to removing back cover of the breakout box and disconnect the breakout Prevent possible electrical shock and or damage to the meter disconnect power box from the flowmeter and battery charger AC adapter WARNING To connect the current loop 1 Ensure the loop powering option is correct 2 Locate the jumpers on the upper right corner of the module Refer t
44. horizontal line on the 3 o clock side of the pipe Ensure that the inside corner of the straight edge of the paper is aligned vvith the mark made for the transducer INSIDE CORNER spacing Tape the paper down or have OF STRAIGHT EDGE someone hold the paper in place Figure 4 4 L HORIZONTAL 3 O CLOCK TRANSDUCER CALCULATED TRANSDUCER SPACING Figure 4 4 L Z Mount STEP 12 36 4 4 3 2 Method continued 13 Go to the other side of the pipe 9 o clock position and mark the pipe at the point where the marked fold and the inside edge of the paper length intersect Figure 4 4 M Remove the paper from the pipe and trace the shape of the 9 o clock transducer in the same manner you did for the 3 o clock transducer Ensure that the inside edge of the transducer opposite the cable connection is even with the point just marked on the 9 o clock side of the pipe Figure 4 4 N Mount the transducers by following steps in Section 6 7 page 32 Figure 4 4 O MARKING POINT FOR MARKED FOLD 9 O CLOCK POSITION 3 O CLOCK Figure 4 4 M Z Mount STEP 13 9 O CLOCK TRANSDUCER TRACING Figure 4 4 2 Mount STEP 14 9 O CLOCK TRANSDUCER PIPE STRAPS TRANSDUCER Figure 4 4 O 2 MOUNT STEP 15 The figure below illustrates the final Z method installation 9 O CLOCK TRANSDUCER 3 O CLOCK gt 1 9 O CLOCK TRANSDUCE TRANSDUCER RANSDUCER INN EA TRANSDUCER TOP VIEW E
45. in the TOTAL Submenu Not included in the Quick Setup Configuration e Totalizer Units setup menu 36 The flow unit selected for the totalizer display may be different from the flow unit selected for the flow rate display Gallons Figure 3 11 A Totalizer Units Totalizer Multiplier setup menu 37 The totalizer 57 value can be displayed with one of several multiplier Totalizer Mult values For example 700 liters can be displayed as 700 if the selected multiplier value is X1 or it can be x0 01 x0 1 displayed as 7 if selected multiplier value is X100 Figure 3 11 B Figure 3 11 B e Net Totalizer setup menu 38 Use this menu to enable or disable the net totalizer The net totalizer provides the difference between the positive and off negative flow values For example if there are 1000 gallons of flow in the negative direction and 3000 Figure 3 11 C gallons of flow in the positive direction the net totalizer indicates 2000 gallons of net flow Figure 3 11 C Net Totalizer 39 11 Additional Setup Menus Within the TOTAL Submenu continued Not included in the Quick Setup Configuration Positive Totalizer setup menu 39 Use this menu to enable or disable the positive totalizer The positive totalizer tracks the flow that moves in the positive kon direction from upstream transducer to downstream transducer It is NOT affected by flow in the opposite Figure 3 11 D direction Figure 3 11 D Totaliz
46. ith some loss in accuracy and stability may still be obtained depending on signal quality 4 3 Spacing amp Mounting the Transducers Once you have selected a proper transducer site you must ensure proper transducer spacing and mounting in order to maximize signal strength and accuracy 1 Determine which mounting method is appropriate for your application V W Z VV WV 2 Refer to Section 3 page 7 to configure the flowmeter via the keypad or to the UltraScan manual to configure with UltraScan and note the value required for the transducer spacing value calculated by and displayed on flowmeter LCD or in UltraScan 3 Clean the area of the pipe designated as the mounting location Remove any rust scale or loose paint well bonded paint does not need to be removed por On horizontal pipes the transducers should be mounted in the 3 o clock and 9 o clock positions in order to avoid situations which can cause signal loss i e sediment along the bottom of the pipe gas bubbles or air pockets along the top of the pipe 4 Refer to one of the following sections to mount the transducers according to the selected mounting method the V method Section 4 4 1 page 33 the W method Section 4 4 2 page 34 the Z method Section 4 4 3 page 34 the VV and VW methods Section 4 4 4 page 37 5 Install the portable slide rack a b C d Extend the chain hooks by unscrewing the chain adjustment knobs to
47. ldom has ID consistency much tighter than 196 and unless the pipe to be measured has been accurately measured this uncertainty is not reducible through instrument calibration The more sophisticated transit time flowmeters incorporate flow profile corrections to compensate for the pipe s cross sectional velocity profile with a changing Reynolds number However this requires that the operator knows the inside roughness of the pipe to be measured The instrument may infer a roughness if none is entered by the operator but that is only an estimate based on the characteristics of new pipe Pipes can of course accumulate deposits which may not only reduce the ID but affect the roughness as well Errors on the order of 296 as a result of this phenomenon are not uncommon While other factors may influence instrument accuracy to a lesser extent the issues described above are the major elements of pipe dependency upon absolute instrument accuracy While calibration on a refer ence flow loop under known conditions is a useful exercise to determine the accuracy potential of an instrument it is not a guarantee of absolute accuracy on different pipes under field conditions 1 4 Ordering The table below describes ordering information for a standard DCT7088 flovvmeter as well as available options MODEL NUMBER Series Digital Correlation Transit Time Flowmeters DCT7088 DCT7088 RS232 digital interface with UltraScan signal analysis and configura
48. lly after several minutes have passed without a keypad entry The display has a variable contrast setting and you may need to adjust the contrast on the display as ambient temperature changes Press MENU followed by the plus minus key LCD CONTRAST appears on the display with a bar indicating current contrast setting Press LEFT or RIGHT ARROW keys to adjust the contrast Press ENTER when complete Bo 3 2 Direct Menu Access The unique 2 digit address reference Table 2 page 8 for each setup and diagnostic menu allows the user to directly access the desired menu 1 Press MENU and the letter M appears in the lower right corner of the display 2 Enterthe desired menu s 2 digit address The address must be entered while the Mis displayed within approximately 4 seconds If the M is no longer displayed press MENU again followed by the 2 digit address Table 2 Menu Addresses Menu Type Display Menu Menu Type Display Primary Flow Net Totalizer Options Measurement Units Flow Velocity Site Parameters Flow Positive Totalizer RS232 Configuration Flow Negative Totalizer Change System Password Signal Strength Low Signal Change Scale Factor Cutoff Password Unit ID Pipe OD Pipe Wall Thickness Calibration Pipe ID Zero Set Pipe Material Scale Factor Pipe Sound Speed Sound Speed Pipe Inside Roughness Compensation Date and Time Liner Material Liner Thickness Current Loop Liner Sound Speed Current Loop Span Liner In
49. mark of Microsoft Corporation IBM is either a registered trademark or a trademark of International Business Machines Inc Krautkramer is a registered trademark of Agfa Gevaert Group Sil Glyde is either a registered trademark or a trademark of American Grease Stick Company TABLE OF CONTENTS 1 Product Overview c ca s don sod duat ad ev ar DA SEENEN 1 1 4 ugeet el BEE 1 1 251 heoryof Operation ihr eter re arret dt 1 1 3 Transit Time Accuracy alpini ee ii 2 UN uero iso orem LE 3 1 5 Technical Specifications su aan acr dc gene epe ele d ce pud dv ac ie 3 TSA Pertormanto s tii 3 15 2 Funcional EE 3 1 5 3 uu dd AGRA rede 4 1 6 External Features 5 aeree dv dalte ie o dee dj dd rviss SS 4 1 7 Breakout Box Components tee vene tezet intret sende eter eee 5 2 Wiring the Current Loop nece ehe oe Lua de EENS 6 3 Configuring amp Operating the 5 2 7 3 1 The Keypad amp Display nlsi euin i 7 2 Ms Components e c 7 3 1 2 Display Contrast nennen nnns inneren aa nen 7 3 2 Direct Menu ACCESS 7 3 3 Using the Arrow Keys to Access Menus eee nnne nennen enn 9 3 4 Flowmeter Configuration Using Setup 5 eren nnne 9 3 5 Quick Setup Configuration nenen see
50. materials steel stainless steel and PVC Table A 1 cast iron Table A 2 ductile iron Table A 3 The inside diameters IDs listed in the following tables are calculated from the outside diameter OD and minimum wall thicknesses as specified in applicable standards The actual pipe ID may vary from the dimension listed in the tables by as much as 25 of the pipe minimum wall thickness The accuracy of flow rate measurement is enhanced if the pipe ID is actually measured 45 IEM PIS 021 p uos 001 08 POYIS EM 1967 01 payos saydu ul CO 18jeWwelq aPISINO pue qi s urelq Pisu s lnp vu plepuejs PUL 18315 ssajule s 13915 I V lqeL S Done qo 1 episino ezis EUIWUON 46 CM SIGE ui p lsil s ss uyolu Bulut 1ueureo ajqnop pue PJEPUEIS ss uyolu Sulull eui seu OM Aq apisui edid sy eonpai sBului 1 YIM sedid 104 3LON 0 78 FG og 0 78 FG 28 OL et 88 92 0121 00 92 0121 VESL 90 09 89 02 09 0c t9 90 09 WAS 20 09 08 29 vo cs 0793 00 vS 0878 00 vS 0125 96 S 99 9S 967v 08 0S 86 ZY OG OG ve Ly OS vv DO ek 0096 D OC 86 SE 967 7660 00 z 86787 LIE 00 vc 9772 92 vc c0 vc 0892 8e ve 0892 00 02 c0 c 00 02 WEN 92 0c WEN 00 8L 8 02 00 81 0961 cc Bl 0961 0091 vel 00 91 0711 0291 0711 00771 4691
51. n Cal Test menus 57 through 59 Figure 3 14 A Current Loop uSpan 1 Test The 4 20 mA current loop is factory calibrated and should not require field calibration prior to use If calibration and testing should become necessary complete the following steps Figure 3 14 A 4 mA Calibrate 1 Connect a milliammeter to the input IN and output NUES gt OUT terminals of the current loop module 2 Access Menu 58 Figure 3 14 B Figure 3 14 B 22 3 14 Additional Setup Menus Within the 4 20mA Submenu continued Not included in the Quick Setup Configuration 3 Press the RIGHT or LEFT ARROWS to adjust the 4 mA set point until the value reads exactly 4 00 mA on the milliammeter Every 2 presses of the arrow key adjusts the calibration approximately 01 mA 4 Press ENTER 20 mA Calibrate 5 Access Menu 58 again E c 6 Press the DOWN ARROW to scroll to the 20 mA Figure 3 14 C Calibrate screen Figure 3 14 C 7 Repeat step 3 for entering the 20 mA set point Current Loop Test 8 Access Menu 00 lt 4 mA gt 9 Testthe current loop calibration by accessing Menu Figure 3 14 D 59 Figure 3 14 D i Span 4 mA 10 Change the current loop output in 1 mA increments using the RIGHT or LEFT ARROWS The output 0 00 Gal S indicated on the screen should be the same as the output on the milliammeter If the values do not Figure 3 14 E match repeat steps 2 through 10 Span 20 mA
52. o Figure 2 1 A below to change the jumper settings 3 Referto Figure 2 1 B below for the self powered option or Figure 2 1 C below for the loop powered option 3 AMP FUSE PIN 10261 0015 ISTT P 4 20 mA ANALOG 1 2 CURRENT LOOP MODULE IN LOOP POWERED ON OFF OFF SELF POWERED oFF ON ON JP ej e JP2 CURRENT LOOP MODULE JP3 e e Figures 2 1 A LEFT 2 1 B RIGHT TOP 2 1 C RIGHT BOTTOM 3 CONFIGURING amp OPERATING THE FLOWMETER 3 1 The Keypad amp Display The keypad provides access to the microprocessor for flovvmeter configuration During operation the instrument s 40 character LCD indicates flow rate and totalizer values 3 1 1 Components 1 4 Components Description 1 LCD 2 Numeric keys 0 through 9 and decimal 3 Arrow keys for scrolling up down left right eer gt 4 ENTER key operates like the Return Enter key on a computer 5 ERASE key deletes last value entered in most setup anddiagnostic menus accesses Main Menu accesses Menu 00 flow rate and net 6 totalizer display if pressed twice 6 MENU key provides access to setup and diagnostic menus Figure 3 KEYPAD amp DISPLAY FEATURES 3 1 2 Display Contrast amp Backlight The display is backlit for ease of viewing in low light conditions In order to save battery life the backlight shuts off automatica
53. o the instrument for the individual application This method is used only when flow in the pipe can be stopped The flow rate displayed in Menu 01 must be between 0 25 and 40 25 ft s 0 076 and 40 076 m s 1 Ensure there is no flow in the pipe Set Zero 2 Access Menu 51 Figure 3 13 B mNo Flow Manual 3 Select No Flow If the zero flow set calibration is Figure 3 13 B successful Figure 3 13 C is displayed Zero Cal Ok Flow 0 00 GPM Fieure 3 13 C 20 3 13 1 b Manual Zero Set Use this method infrequently Manual zero set applies a constant offset entered by the user to all readings For example if the flow reads 250 GPM and a 10 GPM offset is applied the new reading becomes 240 GPM To zero the instrument using the manual zero set method 1 Minimize flovv occurring in the pipe Zero Point 2 Access Menu 51 and select Manual Figure 3 13 D is displayed 0 00 GPM 3 Enter the value of the required offset and press Figure 3 13 D ENTER If necessary you can apply a negative offset by pressing plus minus key Zero Point 4 The flowmeter is now calibrated with the manual zero 10 00 GPM set method and the zero point offset is displayed Figure 3 13 E Figure 3 13 E 3 13 2 Scale Factor Calibration After setting and verifying the instrument s zero point you can set a scale factor to adjust the measured flow the measured flow is multiplied by this scale factor For example if the displayed flo
54. owmeter calculates the pipe OD automatically mActual mcircum Figure 3 5 B 3 5 Quick Setup Configuration continued Step 2 PIPE setup menu continued b Selectthe Pipe ID setup menu 12 Enter the PIPE ID pipe ID value and press ENTER Figure 3 5 C 4 02 INCHES c Selectthe Pipe Material setup menu 13 Press the UP and DOWN ARROWS to scroll through the available options Figure 3 5 D NOTE Select OTHER if the material is not listed Pipe Material You must then enter then pipe sound speed 14 and pipe inside roughness 15 CARBON STEEL Figure 3 5 C 3 Ifthereisa liner Figure 3 5 D a Access the Liner Material setupmenu 16 and Liner Material Figure 3 5 E is displayed Press the UP and DOWN ARROWS to scroll through the available POLYETHYLEME options Figure 3 5 E NOTE Select OTHER if the material is not listed You must then enter the liner sound speed 18 and Liner Thickness liner inside roughness 19 L k r ox h nches b Access the Liner Thickness setup menu 17 and enter the thickness Figure 3 5 F Fieure 3 5 F 4 Access the Fluid Type setup menu 20 and scroll through the available options using the UP and Fluid Type NOTE Select OTHER if the fluid type is not listed You must then enter the fluid sound speed 21 and Figure 3 5 G fluid viscosity 22 Transducer Type 5 Within the Transducer submenu Standard a Access the Transducer Type setup menu 2
55. pe diameters upstream and 5 pipe diameters downstream from any elbows tees throttling valves orifices reduced sections or other flow disturbances Up to 30 diameters of straight run may be required upstream from the flowmeter after a pump control valve or double piping bend for greater accuracy A distance of 5 diameters downstream is usually sufficient under all circumstances Always mount the transducers on the sides of the pipe in the 3 o clock or 9 o clock positions on horizontal pipes Positioning the transducers in this manner prevents signal loss which can be caused by sediment along the bottom of the pipe or gas bubbles and air pockets along the top of the pipe Ensure that the pipe skin temperature is within the transducer temperature rating The transducers are rated for 40 to 212 F 40 to 100 C Temperature ratings up to 392 F 200 C are available with optional high temperature transducers Pipes with excessive corrosion or scaling create conditions which can make accurate measurement difficult or impossible if possible avoid selecting these sections of pipe as mounting locations Remove any dirt grease rust loose paint or scale from the pipe surface prior to mounting the transducers To obtain best results on aging and rough pipes a file or grinder may be required to clean the pipe down to bare metal 30 If your application cannot follow these guidelines completely meaningful flow measurements w
56. pound Any voids or air gaps that exist in the coupling compound beneath the transducers can reduce the signal and render the flowmeter inoperative Coupling compound should be protected from washout and replaced as required Annual replacement is recommended for most applications to maintain optimal performance To replace the coupling compound 1 Remove the transducers from the pipe 2 Clean the old compound from the transducers and the pipe 3 Apply a wide bead of compound lengthwise down the center of each transducer face 4 Remount the transducers verifying that the compound is squeezing out from underneath all sides of the transducers and forming a bead along the edges We recommend the following sonic coupling compounds Sil Glyde American Grease Stick Company made from a silicon base and suited for most transducer installations rated for pip skin temperatures from 40 to 212 F 40 to 4 100 C e Dow Corning 111 or similar high temperature couplant can be used for applications with pipe skin temperatures up to 300 F 150 C e General Electric RTV 108 or similar silicon RTV should be used for underground or submerged transducer sites or sites where a more permanent bond is required RTV should be completely cured prior to covering up the transducer site or taking readings e Krautkramer Hitempco Thermo P N 22861 0001 good high temperature couplant should be used with optional high temperature transducers r
57. re 5 D 40 6 FLowMETER MAINTENANCE amp TROUBLESHOOTING 6 1 Replacing the Fuse AA Prevent possible electrical shock and or damage to the meter disconnect power to the meter PRIOR to wiring WARNING 6 1 1 Flowmeter Fuse The fuse located on the front panel of the flowmeter upper right corner protects the instrument from overcurrent or short circuits from the internal battery It is rated at 3 A 250 V The sheetmetal access cover does not need to be removed since it has a hole for accessing the fuse To replace the fuse 1 Disconnect power from the flowmeter and determine the cause of the fuse failure correct if known 2 Open the door of the flowmeter and use a small flat bladed screwdriver to remove the fuse and replace it with another fuse of the same rating 3 Reconnect power to the flowmeter and verify that the unit operates properly e g the newly installed fuse does not blow 6 1 2 Breakout Box Fuse The fuse located in the breakout box protects the instrument from overcurrent from the battery charger AC adapter output To replace the fuse 1 Disconnect power from the flowmeter and disconnect the breakout box from the flowmeter and battery charger AC adapter 2 Remove the 4 screws from the cover of the breakout box and use a small flat bladed screwdriver to remove the fuse and replace it with another fuse of the same rating 3 Reconnect power to the flowmeter and the breakout box to the battery charger
58. side Roughness Current Loop Calibration Current Loop Test Fluid Type Fluid Sound Speed Alarms Fluid Viscosity Program Alarms View Alarms Transducer Transducer Type Transducer Mounting Datalog Datalog Setup Transducer Spacing Datalog Interval Flow Units Diagnostics Signal Strength Margin Max Flow Range Delta Time Fluid Sound Min Flow Range Speed Damping Reynolds Profile Factor Low Flow Cutoff Current Loop Output Low Signal Cutoff Software Firmware Rev Level Totalizer Totalizer Units Totalizer Multiplier Print Log Setup Net Totalizer Print Settings Positive Totalizer Print Diagnostic Negative Totalizer Print Current Screen Totalizer Reset 3 3 Using the Arrow Keys to Access Menus Another method of accessing the flowmeter s menus is to use the LEFT or RIGHT ARROW keys to scroll through the menu structure Menus are organized into 3 basic levels 1 Main menu 2 submenus and 3 primary displays setup menus diagnostic menus The Main menu displays various submenus which contain individual setup and diagnostic menus To access the Main menu from any screen 1 Press MENU twice The Main menu is displayed with the Pipe and Liner submenu options as shown in Main Menu Figure 3 3 A mPipe sLiner FIGURE 3 3 A 2 To view the remaining submenus Figure 3 3 B press the DOWN ARROW key aPipe Liner sFluid mXducer SE low mTotal mOptions mCalibr m4 20mA mAlarms mDataLog mDiagn Figure 3 3 B 3 When
59. strength is generally greater than 3 under good measurement conditions Figure 3 17 A FIGURE 3 17 A Delta Time Fluid Sound Speed display 91 0 00 ns Displays the value for DeltaT and the fluid sound speed as measured by the flowmeter DeltaT is the 4863 33 FPS difference between the upstream and downstream travel times expressed in nanoseconds ns Figure 3 17 B Figure 3 17 B Reynolds Number Profile Factor display 92 Displays the Reynolds number and flow profile factor Reynolds 0 currently being used by the flowmeter The flow profile Factor 0 750000 factor is calculated by the flovvmeter and used to determine the effect of the flovv profile on mean measured fluid velocity Figure 3 17 C Figure 3 17 C Current Loop Output display 93 Displays values of the current in mA that the flowmeter is presently providing to the current loop output Figure 3 17 D Output 4 57 mA e Software Firmware Revision Level display 94 Displays the software SOFT VERS and firmware FPGA VERS versions installed in the flowmeter Figure 3 17 E Soft Vers Current Loop Figure 3 17 D FPGA Vers Figure 3 17 E 3 18 Additional Setup Menus Within PRINT Submenu Not included in the Quick Setup Configuration Following are instructions on how to configure the optional external thermal printer To begin ensure the printer cable is connected to the printer port on the upper left of the flowmet
60. than ON condition value e SIGNAL gt alarm activates when signal strength value is greater than ON condition value i e SIGNAL lt alarm activates when signal strength On Cond Value value is less than ON condition value 16 00 Gal s 3 Press the DOWN ARROW and Figure 3 15 D is displayed Figure 3 15 C FIGURE 3 15 D 4 Enter the value for the alarm ON condition and press Alarm 1 Off Cond ENTER Flow gt NOTE Flow units used for alarms are the same as flow units selected for measuring flow in Menu 30 Figure 3 15 E 5 Press the DOWN ARROW and Figure 3 15 E is Off Cond Value displayed 24 00 Gal S 6 Select an alarm OFF condition Selections available are the same as those for the ON condition The OFF Pause 3 15 F condition value should be entered in conjunction with the ON condition value to establish as dead band which prevents the alarm from continuously cycling on and off when flow is close to the ON or OFF value For example if the ON condition is FLOW gt 250 GPM the OFF condition may be set as FLOW lt 240 GPM With these settings the alarm turns on when flow exceeds 250 GPM and does not turn off until flow falls below 240 GPM 7 Press the DOWN ARROW and Figure 3 15 F is displayed 8 Entera value for the alarm OFF condition and press ENTER 9 Repeatsteps 1 8 for each alarm you want to program 24 3 15 2 Viewing Alarms To view the ON OFF status of the alarms 1 Access Men
61. the desired submenu is highlighted press R ENTER to display the first menu of the selected Flov Units submenu Figure 3 3 C is an example of when the Gallons Flow submenu is selected Figure 3 3 C Use the UP or DOWN ARROW keys to view a Primary Display setup menu or diagnostic menu within the current submenu 3 4 Flowmeter Configuration Using Setup Menus Flowmeter configuration is accomplished using the setup menus Some setup menus allow a numeric value to be entered and others offer non numeric selections In non numeric setup menus an asterisk is displayed to the left of the selected currently entered in the flowmeter Figure 3 4 below PIPE ID 4 02 INCHES Figure 3 4 3 4 Flowmeter Configuration Using Setup Menus continued To configure the flowmeter 1 Accessthe setup menus individually by pressing MENU and entering the 2 digit address OR by scrolling through the submenus and selecting the desired setup menu 2 a f the setup menu requires a numeric entry use the numeric keys to enter the value and press ENTER to accept the value If the numeric value is entered incorrectly press ERASE to delete the entry OR b Ifthe setup menu offers a non numeric selection press ENTER and the asterisk changes to a flashing cursor Use the arrovv keys to scroll through the available selections VVhen the cursor is to the left of the desired selection press ENTER 3 Complete the configuration process by accessing a
62. the standard method for pipes with 4 to 16 in 101 6 to 406 4 mm diameters This method typically yields a more accurate reading than the Z method since it utilizes a longer measurement path Ensure V is the selected mounting method DOWNSTREAM TRANSDUCER UPSTREAM TRANSDUCER ULTRASONIC SIGNALS I H NA A SIDE VIEW 1 n t SPACING DOVVNSTREAM FLOW UPSTREAM TRANSDUCER TRANSDUCER TOP VIEW END VIEW Figure 4 4 A V Mount 33 4 4 2 W Method In many instances flowmeter performance on small metallic pipes with outer diameters of 4 inches 100 millimeters or less can be improved by using the W mounting method Figure 4 4 B below With the W method the sound wave traverses the fluid 4 times and bounces off the pipe walls 3 times Like the V method both transducers are mounted on the same side of the pipe Ensure W is the selected mounting method UPSTREAM TRANSDUCER DOWNSTREAM ULTRASONIC TRANSDUCER SIGNALS SIDE VIEW Transoucer SPACING TOP VIEW END VIEW Figure 4 4 B W Mount 4 4 3 Z Method The signal transmitted in a Z method installation has less attenuation than a signal transmitted with the V method This is because the Z method utilizes a directly transmitted rather than reflected signal which transverses the liquid only once The Z method Figure 4 4 C below is used primarily in applications where the V method cannot work due to signal attenuation from excessiv
63. tion program Battery Duration 2 16 hours Transducer Cable Length 16A 16ft 5 m Additional Options 0704 0188 0704 0187 22334 0001 XXXXA increments of 10 ft 3 m up to 1000 ft 305 m Ultrasonic Thickness Gauge UTG English units UTG metric units Thermal printer kit Typical Model Number DCT7088 1 B 16A T standard TABLE 1 ORDERING NFORMATION 1 5 Technical Specifications 1 5 1 Performance Flow range Accuracy Sensitivity Linearity Pipe size Fluid 1 5 2 Functional Outputs Power supply Keypad Display Datalogger Programming Temperature Range 0 to 40 ft s 0 to 12 m s 1 of velocity or 0 05 ft s 0 0152 m s typical digital output 0 001 ft s 0 3 mm s at any flow rate including zero 0 1 of scale digital output 1 to 200 in 25 mm to 5 m homogeneous liquids without gas bubbles 4 20 mA into 1000 ohms 12 bit isolated loop or self powered RS232 serial interface built in lead acid gel battery providing 8 hours continuous operation standard OR 16 hours continuous operation optional 19 key with tactile action 40 character 2 line alphanumeric backlit LCD 40 0000 points time stamped programmable in 1 second intervals via UltraScan utility supplied with flowmeter OR integral keypad Transducers 40 to 212 F 40 to 100 C optional high temperature transducers available 5 to 140 F 20 to 60 C 3 Transmitt
64. to enter the value for the damping coefficient which suppresses short term fluctuations in the indicated flow rate The displayed flow rate and the 4 20 mA current loop output is a moving average of the last n seconds where nis the damping value Increasing the coefficient increases the response time to changes The coefficient is adjustable from 1 to 99 seconds in 1 second increments Damping should be kept at a minimum unless the flow rate fluctuates wildly If this is the case increase the damping coefficient just enough to reduce the fluctuation to an acceptable degree Figure 3 10 C Low Flow Cutoff setup menu 34 When a zero flow condition occurs for example as the result of a pump being shut off internal sloshing check valve leakage and other fluid movement can prevent the flowmeter from reading total zero This phenomenon can result in totalizer errors Minimize these errors by entering a low flow cutoff which drives the flowmeter to zero for flow rates at or below the specified value If the flow rate falls below the low flow cutoff value the indicated flow rate is driven to zero and the totalizers stop incrementing this is the case regardless of flow direction Figure 3 10 D For example if you enter a low flow cutoff of 0 1 ft s 03 m s the flowmeter is driven to zero for flow rates less than 0 1 ft s in the positive direction and greater than 0 1 ft s in the negative direction Figure 3 10 E Max Flow 2000
65. tot ntm te peat uer 43 6 5 2 Local Representative Support i 43 6 5 3 Service amp Returns leter E Bo et preter itt keg eee dena da 43 Ee E e A4 6 6 Warranty EE EE 44 Appendix A 5 intente entita 45 Appendix B Fluid Properties rrnnnnnnnnnvvvnnnnnnnnnvennnnnnnnnnnennnnnnnnnnennnnnnnnnnnennnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnennnnnnnnnnnnnn 49 B 1 Fluid Sound Velocities amp Kinematic Viscosities i 49 B 2 Clean Water Sound Speed Versus Temperature 62 B 3 Relationship Between Specific Gravity Viscosity amp Sound Velocity for Petroleum Products 63 Appendix C Monitoring amp Downloading Datalogs Using D Link 2 64 GA Ee Uli e RE S M 64 C 2 Establishing Communications with a Flowmeter essere 64 6 3 Monitoring Datalogs nh eee eee bear B e ert 65 C 4 Saving amp Loading Datalogs e tete eseve rrezet testet eee nr 66 1 PRODUCT OVERVIEW 1 1 Introduction The DCT7088 Digital Correlation Transit Time Flowmeter is manufactured by Thermo Electron Corpora tion This microprocessor based instrument measures the flow of clean homogeneous liquids liquids without large concentrations of suspended particles or gasses such as air bubbles The flowmeter is noninvasive which means that it measures flow from outside the pipe Its transducers can be mounted
66. u 72 Figure 3 15 G 2 Select an alarm to view and the ON and OFF conditions are displayed for the selected alarm Figure 3 15 H Show Alarm Flow lt 16 ml m2 m3 m4 Flow gt 24 Figure 3 15 G Figure 3 15 H 3 16 Additional Setup Menus Within the DATA LOG Submenu Not included in the Quick Setup Configuration The DATA LOG submenu contains the Log Menu 80 and the Log Interval menu 81 The datalogger provides the ability of continuously recording flow data at a preset interval The flowmeter has a single datalog file with approximately 40 000 data points available This allows considerable data to be collected The datalogger is always recording data When all points are recorded the datalogger records over the previous data points one at a time in a continuous loop starting with the oldest data points first The logger can be started and stopped manually or can be programmed to run automatically at a future start and stop time The flowmeter stores completed datalog files and assigns a unique file number to each log This allows datalogs to be recorded and retrieved Additionally files can be viewed deleted or transferred in ASCII format to an IBM compatible PC for record keeping or analysis Log files are transferred using the D Link flowmeter data link utility Appendix D page 64 Log menu 80 There are 4 selections available Figure 3 16 A Log Menu a Start or stop log This option provides control for m
67. unlocks the system allowing the user to make configuration changes To change or disable the system password a Access Menu 47 Figure 3 12 E Password b Enter the new system password and press ENTER Figure 3 12 F NOTE Disable the system passvvord function by New Sys Password entering 0 zero as the system password Enable the function by changing the password back to a non zero number Figure 3 12 F c Enter the old system password Figure 3 12 G and press ENTER If the old system password is Old Syst Password correctly entered Figure 3 12 H is displayed If the password is incorrectly entered Figure 3 12 1 is displayed Figure 3 12 G NOTE After the system password is accepted or rejected Menu 48 is displayed enabling the scale Password factor password to be changed Accepted d Access Menu 00 to lock the system with the new password Figure 3 12 H Password Rejected FIGURE 3 12 1 39 12 Additional Setup Menus Within the OPTIONS Submenu continued Not included in the Quick Setup Configuration Change Scale Factor Password setup menu 48 Use this menu to change the scale factor password which is designed to protect the scale factor from unauthorized or accidental changes The flowmeter ships from the factor with the scale factor password Figure 3 12 J disabled lf the scale factor password is enabled the flowmeter requests the password whenever a user Old
68. ure variations in the fluid and Enabled Disabled other factors may cause variations in the fluid s sound speed Typically the flowmeter can determine sound speed more accurately when this feature is enabled Figure 3 13 H Date and Time setup menu 54 Use this menu to Date and Time set the date and time in the flowmeter s internal clock The time is expressed in military time 24 hour 12 01 96 14 07 17 format and the date is in the month day year format Figure 3 13 1 If you are NOT using UltraScan set Figure 3 13 1 the time and date as follows i a Perform a Master Erase on the flovvmeter Date and Time according to Section 5 2 page 40 Month 12 b Reconfigure the flovvmeter and access Menu 54 Figure 3 13 J NOTE Performing a Master Erase and reconfiguring the flowmeter prior to changing date or time prevents possible data corruption c Press ENTER and prompts are displayed requesting entries for month day year and hour minute second Figure 3 13 J Press ENTER after EACH entry d To keep the current values displayed in any screen scroll to the next screen with the DOWN ARROW instead of pressing ENTER e Once all parameters are entered the new programmed date and time is displayed 3 14 Additional Setup Menus Within the 4 20mA Submenu Not included in the Quick Setup Configuration Within the 4 20mA submenu is the Current Loop Group menu 56 which contains 3 setup menus Spa
69. w is twice the actual flow you can enter a scale factor of 0 5 to divide the displayed flow by 2 The primary reason for setting the scale factor is to compensate for manufacturing variations in the transducers The scale factor printed on the transducer set should be entered in Menu 52 Observe the following precautions when setting the scale factor e Always determine the scale factor at the highest possible flow rate achievable in order to maximize accuracy of the scale factor e Use only the factory preset scale factor as marked on the transducers in the following situations the flow cannot be stopped to verify or set the zero point a reasonably high flow rate cannot be achieved an accurate secondary flow standard is not available If an additional scale factor is required the additional scale factor should be multiplied by the factory scale factor and the result should be entered To enter a new scale factor 1 Access Menu 52 Figure 3 13 F Scale Factor 2 Enterthe new scale factor and press ENTER Figure 3 13 G is displayed 0 9850 3 Enter the valid password and press ENTER FIGURE 3 13 F The new scale factor is displayed in Menu 52 To Scale Fac Password maximize security enter a new scale factor password immediately Figure 3 13 G 21 3 13 3 Other CALIBR Submenu Options Sound Speed Compensation setup menu 53 Sound Speed Comp Enable or disable the flowmeter s sound speed compensation Temperat

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