User Manual - Badger Meter, Inc.
Contents
1. AES 14 ghe RATE E E E EE E E 14 MECHANICAL INSTALLATION C 15 D AO E E AE E E A 16 TES a LIT RR UT T T m 16 Mis UiBiqe 16 RVL WAFER SERIES 17 SFE CIH CATON MANENTE FIER UMEN ANNUM NNNM 17 mue 17 MECHANICAL INSTALLATION 17 DE SON MR 20 eaput Gt 20 Pressure DIOD MENU mm 21 22 SPECIFICATION 22 FLOWN FRM 22 MECEDANICALINSTAELADION o suom 22 EMG M NR UU Om 23 E mets 24 24 MAINTENANC 25 TROUBLE 25 ARP ENDA Ce 26 INTRODUCTION DESCRIPTION The RVL series vortex shedding flow meter is a general purpose electronic liquid flow meter Three outputs are available The standard output is a two wire loop powered 4 20 mA current Options for a 0 to 5 VDC or a frequency output proportional to the volumetric flow rate are also available The choice of output must be made at t2. FIGURE 11 Form No 09 VRX UM 00007 3 PIN CONNECTION OPTION An optional 3 pin connection is available for when the transmitter meter combination are to be mount ed remotely from the power source receiver The mating connector is P N RF8687000 White 4 20 mA Input 8 to 28 VDC Output Black 4 20 mA Input Electronics 4 20 mA Input 8 to 28 VDC Power Supply RIS P N RF8687000 Connector 4 20 mA Input Ammeter FIGURE 12 Black Supply Green Ground Meter Electronics Green Ground 8 to 28 VDC Power Supply RF8687000 Connector White Output Counter FIGURE 13 12 Form No 09 VRX UM 00007 Division of Racine Federated Inc 8635 Washington Avenue Racine WI 53406 3738 USA vortex racinefed com Form No 09 VRX UM 00007 FIGURE 14 White 4 20 mA Input Black 4 20 mA Input RVL INLINE SERIES RVL Inline Specifications Fluid Connection NPT Female or Butt PVDF only 1 of full scale 4 20 mA or 0 5 VDC 2 of full scale frequency pulse Materials PVC standard CPVC PVDF optional 4 20 mA standard Output Signals 0 5 VDC or frequency pulse optional Push Pull Driver 150 mA Sink or Source Power Supply 8 to 28 VDC CSA Certification CSA File 215035 CSA Standard C22 2 No O M and No 142
3. Always use two wrenches when turning a fitting onto the flow meter one across the flats on the flow meter end close to the fitting and one on the fitting Do not use tools inside the flow meter as this may damage the vortex sensor and invalidate the war ranty The flow meter may be mounted in any orientation CORD GRIP COVER CONDUIT ADAPTOR TERMINAL STRIP ELECTRONICS MODULE 1 L THREE PIN CONNECTOR FLOW SENSOR BODY FIGURE 16 RVL Tube Dimensions V2 1 31 33 3 6 25 158 8 4 87 123 7 34 1 31 33 3 6 25 158 8 4 66 118 4 1 1448366 6 59 167 4 5 42 137 7 Form No 09 VRX UM 00007 23 PRESSURE DROP PSID 24 RVL Tube Specifications Fluid Maximum Operating d Pressure PSIG KPa Temperature F C 150 66 100 38 FLOW LPM PRESSURE DROP MILLIBAR 30 100 300 800 FLOW GPM FLOW LPM FIGURE 17 Form No 09 VRX UM 00007 MAINTENANCE This flow meter requires no maintenance in normal service if properly installed If the flow tube should become clogged with debris it will be necessary to remove the meter from service for cleaning Signifi cant clogging will often result in high up to 20 and or erratic output Do not stick tools into the tube as this may permanently damage the vortex sensor The vortex sensor can not be repaired in the field To clean the flow tube run hot up to 160 F soapy water into the
4. FS n Operator s Manual RVL Vortex Shedding Flow Meter 8635 Washington Avenue Racine WI 53406 3738 USA 09 VRX UM 00007 Racine is a trademark of Racine Federated Inc repete Tel 262 639 6770 Toll Free 888 572 2463 TABLE OF CONTENTS INTRODUC MON T 1 PEE 1 OPERATING 1 guol pcu I 1 GENERAL INSTALLATION INFORMATION 2 FLOW RATE sae eerste ee eens geese 2 pomum 2 BACI PRESSURE ADEM 7 PEMPE RATUR E 7 OUTPUT 8 gl Oa T 8 ELECTRICAL INSTALLATION xl 8 bce 8 AO MALOO 8 4 a 11 EVES CN X 11 SPINCONNECTON OPTION 12 SERIES 14 SPECIFICATION S c
5. 2 400 2 420 0 10 1 6 00 25 000 72 00 0 949 26 352 250 00 6 14 0 9767 0 57 1 200 1 200 0 00 1 2 10 10 000 72 00 0 949 10 541 285 71 2 46 0 8547 1 43 0 420 0 420 0 00 Nominal K NK 244 186 UUT Calibration Data Table In LPM UUT Temp F UUT K CYC GAL Meas 0 5V 5 000 3 680 2 420 1 200 0 420 Raw Err FS 1 71 1 71 Linear COEFF 1 0174 0 9767 0 9767 0 9767 0 8547 Actual GPM UUT F V Hz cSt 105 406 79 055 52 703 26 352 10 541 Hz 60 NK GPM Flow Standard Output Err FS 100 000 75 000 50 000 25 000 10 000 5 000 3 600 2 400 1 200 0 420 1 14 0 57 1 43 Nominal K NK 64 507 Racine calibrations are performed using standards traceable to National Institute of Standards and Technology The equipment and calibration procedures complies with ISO 9001 Meter Accuracy of FS Average Calib Temperature Ramon Benedict Average Calib Specific Gravity Calibrated By Average Calib Viscosity Flow Direction Certified By Larry Perez Form No 09 VRX UM 00007 27 racine A division of Racine Federated Inc Limited Warranty and Disclaimer Racine division of Racine Federated Inc warrants to the end purchaser for a period of one year from the date of shipment from the factory that all flow meters electronic accessories and other products manufactured by it are free from defects in materials and workmanship This warranty does not cover products
6. M 2 seconds minimum step change in flow Enclosure Type 4X IP 66 RVL Inline Nominal Flow Rates Tube Size Minimum Flow Vaximum Nominal un Weight inches gpm Ipm iode Scale Frequency Ibs Kg Hz 1052 ___1___ 42 58 500893 29 18080 2 167634 2007571 12 27022 MECHANICAL INSTALLATION This meter will provide years of accurate service if good flow meter installation practices are followed The flow meter should be installed where pipe vibration is minimal Observe the upstream piping requirements listed under Piping requirements Upstream valves should not be used to control flow rate They should always be kept fully open Good quality ball valves with integral unions may be connected directly to the flow meter if the valves are fully open during operation This allows easy isolation and removal of the flow meter should maintenance be required Cavitation and flow rate pulsation will adversely affect flow meter performance 14 Form No 09 VRX UM 00007 Diaphragm or piston pumps may not be used Do not use Teflon tape or any kind of pipe dope when piping The simple appearance of the flow meter may tempt an installer to handle it as an ordinary nipple Re member it is a precision electronic instrument Treat it with care Do not use excessive force Mating fittings FNPT and flanges should be screwed into meter hand tight then tighten an additional to 34 turn Always use two wrenches
7. VRX UM 00007 y The frequency output option generates a square wave with an amplitude that matches the input power level The pulse width varies with frequency and is found by using the following formula The result is in seconds PW 2 Maximum Frequency Hz K FACTORS The K factor with regards to flow is the number of pulses that must be accumulated to equal a particu lar volume of fluid Think of each pulse as representing a small fraction of the totalizing unit Calibration reports that accompany RVL series meters include a nominal K factor in both gallons and liters See the sample calibration sheet in the appendix of this manual ELECTRICAL INSTALLATION POWER The meter requires an 8 to 28 VDC power supply The specific connections depend upon which output is option is used See wiring details for the specific output option NOTE This instrument requires clean electrical line power Do not operate this unit on circuits with noisy components i e Fluorescent lights relays compressors variable frequency drives etc Linear power supplies are also much preferable to switching power supplies NOTE The power and output connections share a common ground WIRING 4 20 mA LOOP Connect a twisted pair wire not provided to the terminals of the transmitter marked 48 28 VDC and Output If the twisted pair wire is shielded do not connect the shield to the transmitter The shield should be grounded at the receiver only
8. downstream end of the flow tube Large objects jammed against the bluff body maybe dislodged by lightly tapping the upstream end of the flow tube against a firm surface WARNING Do not remove vortex meter during operation A N Always disconnect primary power source before inspection of service Do not tap the flow tube so hard that the threads on threaded units become damaged A schedule of maintenance checks should be determined based upon environmental conditions and frequency of use Inspect the meter at least once a year The inspection should consist of performing visual electrical and mechanical checks on all components 1 Visually check for evidence of overheating by noting discoloration of wires or other components 2 Check for damaged or worn parts especially the bluff body or indications of corrosion 3 Check for tight clean electrical connections and that the device is operating properly TROUBLESHOOTING If difficulty is encountered locate the symptom most likely present and follow the appropriate instruc tions CURRENT LOOP SYMPTOM NO CURRENT OUTPUT 1 Place a DC voltmeter across the two terminal block screws With the electronics module powered there must be at least 8 VDC present If there is less than 8 VDC but more than 0 VDC check the power source for sufficient voltage to drive the loop as shown on page 10 in Figure 8 If there is 0 VDC present check for a broken wire or connector in the loop 2 Chec
9. piping requirements listed under Piping requirements Upstream valves should not be used to control flow rate They should always be kept fully open Good quality ball valves with integral unions may be connected directly to the flow meter if the valves are fully open during operation This allows easy isolation and removal of the flow meter should maintenance be required Cavitation and flow rate pulsation will adversely affect flow meter performance Diaphragm or piston pumps may not be used Do not use Teflon tape or any kind of pipe dope when pip ing 22 Form No 09 VRX UM 00007 The simple appearance of the flow meter may tempt an installer to handle it as an ordinary nipple Re member it is a precision electronic instrument Treat it with care 1 To install a flare fitting first remove any burrs from the pipe ends then slide the flare nut onto the pipe Push it back far enough so that it will be out of the way when you use the flaring tool 2 Clip the pipe in the flaring tool keeping the end flush with the face of the tool 3 Slowly turn the handle on the tool until it bottoms out 4 Unscrew the handle and remove the tool to check the quality of the flare If the flare isn t smooth or even the first time cut off the end with your pipe cutter and try the technique again 5 Line up and tighten the nut and flared pipe to the fitting body Make the connection as tight but not so tight as to distort the flow meter body
10. that have been damaged due to misapplication abuse lack of maintenance or improper installation Racine s obligation under this warranty is limited to the repair or replacement of a defective product at no charge to the end purchaser if the product is inspected by Racine and found to be defective Repair or replacement is at Racine s discretion An authoriza tion number must be obtained from Racine before any product may be returned for warranty repair or replacement The product must be thoroughly cleaned and any process chemicals removed before it will be accepted for return The purchaser must determine the applicability of the product for its desired use and assumes all risk in connection therewith Racine assumes no responsibility or liability for any omissions or errors in connection with the use of its products Racine will un der no circumstances be liable for any incidental consequential contingent or special damages or loss to any person or property arising out of the failure of any product component or accessory All expressed or implied warranties including the implied warranty of merchant ability and the implied warranty of fitness for a particular purpose or applica tion are expressly disclaimed and shall not apply to any products sold or services rendered by Racine The above warranty supersedes and is in lieu of all other warranties either expressed or implied and all other obligations or liabilities No agent or rep
11. 09 VRX UM 00007 RVL WAFER SERIES RVL Wafer Specifications Fluid 1 of full scale 4 20 mA or 0 5 VDC 2 of full scale frequency pulse PVC standard CPVC Polypropylene PVDF optional 4 20 mA standard Output Signals 0 5 VDC or frequency pulse optional Push Pull Driver 150 mA Sink or Source ndosur 4 S RVL Wafer Nominal Flow Rates Maximum Nominal Full Flow Scale EUN gpm Ipm 1347 sees so osoa __ __ 2109 250469 X 284 0904 _ 11050 _ 1 83015 1008785 77 L3 2888 3 250046 300013 6 8 16 MECHANICAL INSTALLATION Tube Size Minimum Flow inches gpm Ipm The RVL Wafer series transmitters are designed with wafer style flow bodies which mount easily be tween standard ANSI style pipe flanges Observe the upstream piping requirements listed under Piping requirements Upstream valves should not be used to control flow rate They should always be kept fully open Good quality ball valves with integral unions may be connected directly to the flow meter if the valves are fully open during operation This allows easy isolation and removal of the flow meter should maintenance be required Cavitation and flow rate pulsation will adversely affect flow meter performance Form No 09 VRX UM 00007 17 Diaphragm or piston pumps may not be used Do not use Teflon tape
12. 8 73 6 00 152 1 50 38 2 63 67 1 75 45 2 88 73 2 6 37 162 188 48 322 82 175 45 2 88 73 3 688 175 2 0 64 425 108 175 45 2 88 73 RVL Wafer Standard Specifications Maximum Fluid Maximum Operating Pressure PSIG KPa vemm operating Prese 20305 NotRecommended Consult Factory Not Recommended Consult Factory 150 66 NotRecommended 63 434 9062 13089 _ 20 Form No 09 VRX UM 00007 RVL Wafer High Pressure Specifications Maximum Operating Pressure PSIG KPa PVC Polypropylene 0620 3000068 130 696 4000750 150 1034 000750 N PRESSURE DROP MILLIBAR 3 51 2 5 101525 50 100200 300 30 100 300 800 FLOW GPM FLOW LPM FIGURE 15 Form No 09 VRX UM 00007 21 RVL TUBE SERIES RVL Tube Specifications Fluid Connection Tube Flare end 1 of full scale 4 20 mA or 0 5 VDC 2 of full scale frequency pulse PVC standard CPVC Polypropylene PVDF optional 4 20 mA standard Output Signals 0 5 VDC or frequency pulse optional Push Pull Driver 150 mA Sink or Source Enclosure Type4X IP 66 inches gpm Ipm gpm Ipm Ibs Kg 3 4 7 31 2179 25 946 4 70 77 MECHANICAL INSTALLATION This meter will provide years of accurate service if good flow meter installation practices are followed The flow meter should be installed where pipe vibration is minimal Observe the upstream
13. attempting to make this adjustment OVER STRESSED SENSOR If the maximum permitted flow rate of 12596 of Recommended capacity 10096 of HT meters is exceed ed it is possible to over stress the sensor 26 Form No 09 VRX UM 00007 APPENDIX CALIBRATION CERTIFICATE SAMPLE Racine Vortex A Division of Racine Federated Inc 8635 Washington Ave Racine Wisconsin 53406 Phone 262 639 6770 Fax 262 639 2266 Calibration Report Unit Under Test UUT Information Master Meter Description 34 In Line NPT End Flow Meter Std uncertainty 0 25 Model Number RVLO75 N 1 VNN Traceability No 30400 31801 Serial Number 99999 Model No FT8 8N EXW LEG 5 FT 16 NEXW LEG 1 Sensor Type Vortex Shedding Serial No 806890 16011903 Output type 0 5V Minimum Flow 2 1GPM 7 9LPM Customer Information Maximum Flow 25GPM 94 6 LPM Customer Name Calibration Date October 24 2007 Customer No Calibration Interval 12 Months Order No Cal Liquid Water Ambient Temperature 71 74 F Ambient Humidity 31 39 RH Linear Points 5 UUT Calibration Data Table In GPM Flow Actual UUT UUT Visc UUT F V UUTK Hz 60 NK Linear Raw Err Calc Meas Output Standard GPM Hz Temp F cSt Hz cSt CYC GAL GPM COEFF 96 FS 0 5V 0 5V Err FS 1 25 00 100 000 72 00 0 949 105 406 240 00 24 57 1 0174 1 71 5 000 5 000 0 00 1 18 00 75 000 72 00 0 949 79 055 250 00 18 43 0 9767 1 71 3 600 3 680 0 40 1 12 00 50 000 72 00 0 949 52 703 250 00 12 29 0 9767 1 14
14. e Minimum Minimum g Minimum g Minimum Minimum _ Minimum _ FIGURE 4 Form No 09 VRX UM 00007 o 25 Dia 10 NN Minimum J 5 Dia L 2 Dia Minimum Minimum Minimum 25 Dia Dia Minimum Minimum up gt d 5 Dia ar L 2 Dia Minimum Minimum Minimum ES Two Plane Changes NEN Dia WEE 4 5 Dia Minimum A L al Minimum inicium FIGURE 5 Minimum Form No 09 VRX UM 00007 BACK PRESSURE Back pressure the pressure immediately downstream of the meter must be maintained above a mini mum level in order to avoid cavitation For most applications this may be ignored if the flow rate is less than 7596 of maximum For other liquids use the following formula to calculate the minimum back pres sure Back Pressure 2 75 AP 1 25 PV 14 7 Where AP Pressure drop in psi at max flow PV Vapor pressure in psia of the liquid at operating temp eg the PV of water at 100 F is 0 42 BP Back pressure downstream of meter in psig As an example for water at 100 F 37 C in meter where the maximum pressure drop is 8 psi mini mum back pressure is 7 8 psig BP 2 75 x8 1 25 x 0 42 14 7 BP 22 0 525 14 7 BP 7 825 TEMPERATURE To protect the internal crystals in each unit temperatur
15. e limitations must be adhered to All permissible operating temperatures are identified by meter and material type Additionally fluid temperature will af fect maximum working pressures For de rating information see the maximum fluid operating pressures for the specific flow meter model OUTPUTS The RVL series meters can be obtained with either an analog output or a rate frequency output The Standard analog output is a 4 20 mA current an optional 0 5 VDC is also available The analog output can also be re configured in the field using a PC communications cable and programming software which are both available from Racine Vortex as P N RVS220 954 The analog current output varies between 4 mA 0 flow and 20 mA Meter Size Average Full en S maximum flow The 0 to 5 VDC analog output is also continuously ston Frequency H variable between 0 V 0 flow and 5 V maximum flow 4 6 1055 754127 NOTE One of the two analog output options 4 20 mA or 0 5 VDC are hard ware selected at the factory and can not be changed in the field 12 7 The rate frequency output produces pulses whose frequency is 1 25 4 proportional to the flow going through the meter Each meter hasa 1 381 slightly different output frequency which is listed on the calibration 5 555 sheet that accompanies the meter Table 2 shows the long term aver age full scale output frequency for standard size meters 3 76 2 TABLE 2 Form No 09
16. ear to viscosity No adjust ments are required for viscosities up to 2 0 cSt Liquids with higher viscosities will adversely affect the permissible amount and duration of TABLE 1 over range flow see table 1 Form No 09 VRX UM 00007 1 GENERAL INSTALLATION INFORMATION Prior to installation the following items should be considered 1 The vortex transmitter contains electronic circuitry which can be affected by high electromagnet ic or electrostatic fields Care should be taken to locate the installation in an area away from large electrical motors transformers or other devices which can produce such interference 2 Proper grounding is required to eliminate electrical noise which may be present within the fluid and piping system or in the near vicinity of the vortex transmitter For non conductive piping sys tems an exterior grounding strap should be used to provide a path to earth ground For conduc tive piping systems a properly grounded pipe will require no additional preparation FLOW RATE AND RANGE REQUIREMENTS Most manufacturers state flow range capabilities by publishing the maximum allowed flow rates Then they provide turndown ratio to determine minimum flow rate To use the turndown ratio simply divide the maximum rate by the ratio to determine the minimum rate Racine vortex flow meters have a 12 1 turndown ratio at a viscosity of 1 cSt Higher viscosities will reduce the turndown NOTE The 14 NPT and 4
17. fective active filter that rejects false signals caused by pipe vibra tion This filter is most effective under flowing conditions If vibration is causing the meter to indicate flow when the flow is stopped it will most likely not cause error under flowing conditions The false flow indication may be ignored or the pipe may be restrained by firm clamps or the noise adjustment may be readjusted Be sure to read the noise adjustment instructions Check for electrical noise Under some conditions there can be high common mode AC noise present between the fluid and the power supply ground The flow meter is designed to reject up to 50 volts of AC common mode noise without loss of accuracy If metal piping is used place a ground strap on the pipe on both sides of the flow meter the flow meter is made of non conductive plastic and connect them both to the one point where the loop is grounded see wiring diagrams starting on page 9 If plastic pip ing is used a grounding orifice should be used The transmitter module contains a highly effective active filter that will reject false signals due to high common mode voltage This filter is most effective under flowing conditions If a false indication of flow is encountered at zero flow it will probably not cause error under flowing conditions In addition the noise adjustment may be used but it will reduce the ability of the flow meter to measure low flow rates See the noise adjustment instructions before
18. flare end meters have a standard turndown ratio of 8 1 PIPING REQUIREMENTS Turbulence in the pipe line can affect the accuracy of most flow meters Sources of turbulence are pumps valves or changes in direction in the line To avoid these potential problems it is standard prac tice to place the meter a certain distance from the turbulence source These distances are indicated in Pipe Diameters PD For example 10 PD means place the flow meter ten times its inside diameter away from the source of turbulence Downstream distances between the meter and a valve or a change in direction must also be followed The best accuracy is achieved with at least 20 PD upstream and 5 PD downstream for RVL vortex flow meters If an upstream elbow is closely coupled to another elbow creating a change in plane 27 PD is required upstream and 10 PD downstream see Figure 2 3 and 4 When the diameter of the meter is smaller than the pipe line at least 20 PD of pipe with the same diam eter as the meter upstream and 2 PD downstream is needed Overall 25 PD of straight run prior to the meter is required see Figure 5 If there is a plane change in the installation this IN OUT requirement in creases to 25 PD upstream 30 overall The downstream requirement is now 2 PD of pipe with the same diameter as the meter and a minimum of 5 PD overall of straight run If there is a valve downstream the usual 10 PD between the meter and a valve is still required If
19. he time of ordering High accuracy is assured by individual flow testing Since it uses moving parts maintenance is minimized The RVL is available in several types of plastics allowing them to be used in a wide variety of chemical applications OPERATING PRINCIPLE JILE Counter An everyday example of a vortex shedding phenomenon is a flag waving in the breeze the flag Bluff waves due to the vortices shed by BEL air moving across the flagpole Within the flow meter as a fluid panera moves across a tiny strut or bluff body vortices are also shed but smaller scale The vortices FIGURE 1 form alternately from one side to the other causing pressure fluctuations These are detected by the crystals in the sensor tube and are converted to an analog signal or pulse output The frequency of the vortices is directly proportional to the flow This results in extremely accurate and repeatable measurements with no troublesome moving parts see figure 1 FLUIDS Any clean liquid compatible with the plastic material of construction that does not contain significant amounts of fibers or abrasive materials can be used Danger Do not use with explosive Viscosity and Rangeability or flammable materials food or bev Flow Range erages or gaseous fluids Viscosities above 1 cSt will raise the minimum usable flow rate in effect reducing range abil ity This effect is lin
20. k for the proper polarity of the current loop connections 3 Make sure the receiving device is configured to provide source current to the electronics mod ule SYMPTOM ZERO FLOW INDICATION 4 mA IN LOOP 1 Check that the flow is greater than the minimum specified for the particular size flow meter in use If the flow rate is too low replace the flow meter with the proper size flow meter 2 If the flow rate is sufficient partially remove the electronic module Check that the three pin con nector that connects the electronics module to the flow transducers is positively connected See Figure 18 If it is disconnected align and insert the connector on to the bottom of the electronics module Form No 09 VRX UM 00007 25 SYMPTOM Erratic Flow Indication Check that there is at least 8 VDC present across the two terminal block screws Check for material clogging the flow meter and in the upstream piping Check for erosion of the bluff body by sighting down the meters bore Erosion or damage to the bluff body will cause erratic readings and compromise accuracy If the erosion continues the flow meter will need to be periodically replaced Check upstream piping to assure that the required piping is used See the piping requirements specifi cations starting on page 2 for this information Check for pipe vibration Normal amounts of pipe vibration are easily tolerated In addition to this the transmitter module contains a highly ef
21. or any kind of pipe dope when pip ing For flanged meters do not allow gaskets to protrude into the flow stream The following steps will insure proper installation and operation 1 A uniform flow profile is required to assure proper vortex shedding This requires a non pulsating flow along with the proper length of straight pipe run before and after the transmitter Figures 2 3 4 and 4 shows the proper piping requirements and dimensions FLANGE SIZE RECOMMENDED TORQUE Va Var 10 15 ft Ibs 20 30 ft Ibs 2 Flanges are to be spaced to accommodate the width of the flow body Dimensions are listed on page 20 3 Align the flow body centered with respect to flanges and gaskets insert threaded rods retaining nuts and lock washers 4 Install all retaining nuts hand tight and then uniformly tighten the nuts in an alternating se quence diametrically opposed to each other Uniform stress across the flange will prevent leak age at the gasket Torque ratings are listed below 5 The use of grounding rings is recommended when metal pipes are used in conjunction with this meter See figure 13 18 Form No 09 VRX UM 00007 Form No 09 VRX UM 00007 Grounding Rings FIGURE 13 CORD GRIP COVER CONDUIT ADAPTOR Pm TERMINAL STRIP ELECTRONICS MODULE THREE PIN CONNECTOR FLOW SENSOR BODY 5 90 150 0 94 24 2 03 52 1 5 69 145 1 19 30 2 25 57 175 45 2 8
22. re resistance is unknown use a value of 50 Ohm for a twisted wire of 1 000 feet or less with a gauge of 22 AWG or heavier Find the total load in ohms on the left hand side of the chart in figure 8 and follow that value horizon tally until it intersect with the shaded area From the intersection point look straight down to where a vertical line would intersect the voltage scale This is the minimum voltage needed for the transmitter to operate properly under the specific load con ditions Example After checking the specification for all the loads in an application the total amounted to 800 ohms Following the 800 ohm line in figure 9 to the right the intersection point is about 34 of the way across the chart in figure 9 A vertical line through the intersec tion point crosses the voltage axis at about 24 VDC so with a load of 800 ohms a standard 24 volt power sup ply would be used 1100 Loop Load Ohm s e e Supply Voltage 8 VDC 0 02 Maximum Loop Resistance ODN o O O O O O O O 200 100 8 10 12 14 16 18 20 22 24 26 28 Supply Voltage VDC FIGURE 9 Form No 09 VRX UM 00007 Figure 10 and figure 11 show typical connections for the 0 5 VDC and pulse output options 0 5 VDC OUTPUT Digital Display 8 28 VDC POWER SUPPLY PULSE OUTPUT FIGURE 10 Counter 8 28 VDC POWER Pulse Output SUPPLY
23. resentative has any authority to alter the terms of this warranty in any way 28 Form No 09 VRX UM 00007 8635 Washington Avenue Racine Wisconsin 53406 Toll Free 888 572 2463 Phone 262 639 6770 Fax 262 639 2267 www racinevortex com info racinevortex com rang RFID Racine Flow Meter Group Dynasonics Fio tech HEDBANEI PRESO racine Racine Vortex is a registered trademark of Racine Federated Inc UL is a registered trademark of Underwriters Laboratories Printed in USA 2011 Racine Federated Inc Form No 09 VRX UM 00007
24. see figure 6 The transmitter is reverse polarity protected 8 Form No 09 VRX UM 00007 o 80928 VDC Output E POWER Sues 8 28 VDC oo RECEIVER Load FIGURE 6 The receiving equipment must accept industry standard true two wire or loop powered 4 20 mA cess transmitter inputs This means that the receiving equipment such as a recorder or controller must supply power for the transmitter along the twisted wire pair If the receiving equipment does not provide power a separate power supply typically 24 VDC and at least 30 mA must be used as shown in figure 6 There are many brands of receivers which provide 24 VDC for this purpose Several receivers may be connected in a series as shown in figure 7 but only one should provide power and all should have isolated inputs The voltage provided by the receiver must be within the limits shown in the Supply Voltage chart see figure 8 Bae 4 20 mA RECEIVER POWER SUPPLY b 83 RECEIVER RECEIVER 80928 VDC Output 5 Additional Loads FIGURE 7 Form No 09 VRX UM 00007 9 1100 1000 900 800 700 600 500 400 300 200 100 Loop Load Ohm s 8 10 12 16 18 20 22 24 26 28 Supply Voltage VDC FIGURE 8 To use this figure first add the resistance of all the receivers indicators etc and the wire in the loop If the wi
25. the required piping parameters are not met there will be a reduction in accuracy NOTE Pulsating flow will affect accuracy pressure pulses will not 2 Form No 09 VRX UM 00007 HORIZONTAL FLOW Sensing element in vertical orientation ies a m E AOR Accuracy Repeatability full scale of point 1 plane ana 1 pl h tlet val plane change 1 plane change w outlet valve et valve 1 009 025 2 plane changes 2 plane changes w outlet valve MEN n 5 Dia ci m Sa Minimu 10 vato d Changes 5 Dia Minimu Two Plane Changes 10 1 cs FIGURE 2 Form No 09 VRX UM 00007 3 HORIZONTAL FLOW Sensing element in horizontal orientation Requirements E MN Configuration pipe diameters sedey epeatability full scale of point 1 plane change MEN 1 plane change w outlet valve 10 p g 2 plane changes 2 plane changes w outlet valve 5 Dia I Minimum 10 rt Minimum Two Plane Changes 5 Dia I Minimum Two Plane Changes 10 om Minimum FIGURE 3 Form No 09 VRX UM 00007 VERTICAL FLOW upward or downward flow and sensor in any orientation je Requirements A E TT Configuration pipe diameters _ E y j 1 plane change 1 plane change w outlet valve 1 00 0 25 427 Two Plane Two Plane Changes Changes am 27 Dia zm 27 Dia zu 20 Dia TL 20 Dia
26. when turning the flow meter into a fitting one across the flats on the flow meter end close to the fitting and one on the fitting Do not use tools inside the flow meter as this may damage the vortex sensor and invalidate the war ranty The flow meter may be mounted in any orientation Three holes tapped 14 20 UNC 2B 375 inch deep on 34 centers are provided on the 34 inch and smaller flow meters These holes may be used at the user s discretion to provide support for the flow meter should pipe supports not be practical CORD GRIP COVER CONDUIT ADAPTOR p TERMINAL STRIP _7 ELECTRONICS MODULE a THREE PIN CONNECTOR FLOW SENSOR BODY FIGURE 11 Form No 09 VRX UM 00007 15 RVL Inline Dimensions PVC CPVC 250 64 250 64 763 194 074 19 300 76 RVL Inline Dimensions PVDF BUTT Fusion Only IC ANN NICE 150 0 63 16 4 87 124 1 31 33 0 30 8 2 88 73 3 00 76 1 94 49 2 88 73 3 38 86 Maximum Fluid RVL Inline Maximum Operating Pressure PSIG KPa Not Recommended Consult Factory Consult Factory Not Recommended 63 434 130 896 93 641 120 827 150 1034 150 1034 150 1034 1034 i lt amp amp Q O C m cr 5 A N LLI LLJ ac a Q 3 5 1 2 5 1015 25 50 100 200 30 100 300 800 FLOW GPM FLOW LPM FIGURE 12 16 Form No
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