Manual - OMEGA Engineering
Contents
1. _ FLOW DIRECTION Examples of incorrect sensor placement There are no limitations regarding sensor position in piping however consideration should be given to the ease of reading the display data and access to the optical probe contact point see the picture below The above recommendations regarding the meter sensor placement and installation apply to both the compact and remote meter versions Design Assembly and Service Manual X OMEGA Ultrasonic water meter FDT100 series mage t oreo 5 2 Meter installation 5 2 1 General recommendations In the basic arrangement flow direction from left to right and the sensor installed into a horizontal piping section the electronic unit is fitted onto the sensor body as shown in the following picture CEOMEGA a EL E2 E3 E4 ES G 10 GPM FDT 103 XA IP 67 DC 3 6V T32 122p FLOW DIRECTION In the case of vertical mounting or the flow direction from right to left the electronic unit can be rotated with respect to the sensor body by 90 or 180 in both ways 180 rotation is a limit to avoid straining the connecting wires The unit can be rotated upon loosening the arresting screw M5 at the unit base using an Alien wrench size 2 5mm The 90 positions on the unit base are marked by recesses for the arresting screw VIEW P lock screw FLOW DIRECTION To prevent signal interference the meter wiring shall be pl2. shop online at omega com CEOMEGA omega com e mail info omega com For latest product manuals omegamanual info FDT100 Series Ultrasonic Flow Meters omega com CE OMEGA OMEGAnet Online Service Internet e mail omega com info omega com Servicing North America U S A One Omega Drive P O Box 4047 ISO 9001 Certified Stamford CT 06907 0047 TEL 203 359 1660 FAX 203 359 7700 e mail info omega com Canada 976 Bergar Laval Quebec H7L 5A1 Canada TEL 514 856 6928 FAX 514 856 6886 e mail info omega ca For immediate technical or application assistance U S A and Canada Sales Service 1 800 826 6342 1 800 TC OMEGA Customer Service 1 800 622 2378 1 800 622 BEST Engineering Service 1 800 872 9436 1 800 USA WHEN Mexico En Espa ol 001 203 359 7803 e mail espanol omega com FAX 001 203 359 7807 info omega com mx Servicing Europe Czech Republic Frystatska 184 733 01 Karvin Czech Republic TEL 420 0 59 6311899 FAX 420 0 59 6311114 Toll Free 0800 1 66342 e mail info omegashop cz Germany Austria Daimlerstrasse 26 D 75392 Deckenpfronn Germany TEL 49 0 7056 9398 0 FAX 49 0 7056 9398 29 Toll Free in Germany 0800 639 7678 e mail info omega de United Kingdom One Omega Drive River Bend Technology Centre 1S0 9002 Cortifiod_ Northbank Irlam Manchester M44 5BD United Kingdom TEL 44 0 161 777 6611 FAX 44 0 161 777 6622
3. 3 2 1 Compact version basic dimensions DN 1 32 172 40 2 50 2 65 3 80 4 100 5 125 6 150 8 200 L inch mm 10 2 260 11 8 300 11 8 300 11 8 300 13 8 350 13 8 350 13 8 350 13 8 350 13 8 350 S inch mm 7 5 190 7 8 198 8 2 208 8 9 225 9 3 237 10 253 11 280 12 307 14 352 D inch mm 5 5 440 5 9 150 6 5 165 7 3 185 7 9 200 8 7 220 9 8 250 11 2 285 13 4 340 Weight Ib kg 10 45 15 7 22 10 2411 33 15 39 17 5 50 22 5 57 26 80 36 5 3 2 2 Remote version basic dimensions 3 54 90mm ELECTRONIC 0 4 10mm SENSOR 2 4 61mm 20 25 lt 22 S Smm g 3 3 84mm s p Y 6 15 4mm 5 35 136mm o max length 5m n3 15 80mm TERMINAL BOARD ULTRASONIC Design Assembly and Service Manual X OMEGA Ultrasonic water meter FDT100 series mage dorst DN 1 32 172 40 2 50 272 65 3 80 4 100 5 125 6 150 8 200 L inch mm 10 2 260 11 8 300 11 8 300 11 8 300 13 8 350 13 8 350 13 8 350 13 8 350 13 8 350 D inch mm 5 5 140 5 9 150 6 5 165 7 3 185 7 9 200 8 7 220 9 8 250 11 2 285 13 4 340 Weight Ib kg 11 5 16 5 7 5 23 10 5 25 11 5 34 15 5 40 18
4. M 4268 0406
5. PLASTIC COVER IMPORTANT NOTICE Prior to operational start check proper tightening of the grummets and blinding of the unused ones Design Assembly and Service Manual CE OMEGA Page 6 of 20 Ultrasonic water meter FDT100 series 3 2 5 Separate sensor unit terminal board In the case of the remote version of the FDT100 SERIES water meter attached to the sensor housing is a terminal board in an aluminium box with a sealed lid The terminal box is provided with a M12 grommet for a cable of diameter 6 5 to 8mm a valve preventing moisture condensation inside the box and four spring loaded WAGO terminals to which the ultrasonic probes signals are brought Connected to these terminals are the wires of the cable leading to the remote electronic unit BUSHING CONNECTING CABLE TO ELECTRONIC UNIT WAGO TERMINALS CONDENSATION ALUMINIUM VALVE BOX LID Design Assembly and Service Manual X OMEGA Ultrasonic water meter FDT100 series age eren 3 2 6 Meter handling The arrows indicate incorrect grips on the meter assembly Do not lift the meter holding it by the electronic unit or the protection tubes see the figure The arrows indicate the correct grips on the meter assembly To lift the meter hold it by the flanges or meter body ANSI 2 S N 22686 06 si PRESSURE 232 psi 4 20 Design Assembly and Service Manual X OMEGA Ultra
6. Toll Free in United Kingdom 0800 488 488 e mail sales omega co uk It is the policy of OMEGA Engineering Inc to comply with all worldwide safety and EMC EMI regulations that apply OMEGA is constantly pursuing certification of its products to the European New Approach Directives OMEGA will add the CE mark to every appropriate device upon certification The information contained in this document is believed to be correct but OMEGA accepts no liability for any errors it contains and reserves the right to alter specifications without notice WARNING These products are not designed for use in and should not be used for human applications Design Assembly and Service Manual X OMEGA Ultrasonic water meter FDT100 series rage eren Contents 1 APPLICATION c ER 2 2 MEASUREMENT METHOD eeseeeeense nennen nan n anna tna Ra RR RR RR AENEID RRR RR RR RR AR RSS SERR RR Py Rasa sss sa Rss ss ssa a saa se Ras sand uaa 2 3 TECHNICAL DESCRIPTION reete Autre ie Scc ie de ENEE EE ni A es dd EN 2 3 1 Meter characterlstiCS ore reete eto eer Yo ra eee RS vena ENEE Eege dee 2 3 2 Sce pmee 3 3 2 1 Compact version basic dimensions sse eene ener enne nnne enne nennen 3 3 2 2 Remote version basic dimensions eene enne then tren tren tren trennen nennen enn nns 3 3 2 3 Ultrasonic sensor unt 4 3 2 4 EE Zi T
7. and 3 Repair instructions and or specific problems relative to the product Where Do Find Everything Need for Process Measurement and Control OMEGA Of Course shop online at omega com TEMPERATURE Thermocouple RTD amp Thermistor Probes Connectors Panels amp Assemblies Wire Thermocouple RTD amp Thermistor Calibrators amp Ice Point References Recorders Controllers amp Process Monitors Infrared Pyrometers PRESSURE STRAIN AND FORCE Transducers amp Strain Gages Load Cells amp Pressure Gages Displacement Transducers Instrumentation amp Accessories FLOW LEVEL Rotameters Gas Mass Flowmeters amp Flow Computers Air Velocity Indicators Turbine Paddlewheel Systems Totalizers amp Batch Controllers pH CONDUCTIVITY pH Electrodes Testers amp Accessories Benchtop Laboratory Meters Controllers Calibrators Simulators amp Pumps Industrial pH amp Conductivity Equipment DATA ACQUISITION Data Acquisition amp Engineering Software Communications Based Acquisition Systems Plug in Cards for Apple IBM amp Compatibles Datalogging Systems Recorders Printers amp Plotters HEATERS Heating Cable Cartridge amp Strip Heaters Immersion amp Band Heaters Flexible Heaters Laboratory Heaters ENVIRONMENTAL MONITORING AND CONTROL Metering amp Control Instrumentation Refractometers Pumps amp Tubing Air Soil amp Water Monitors Industrial Water amp Wastewater Treatment
8. 0ms pulses use jumper J5 to connect terminals J5 2 and J5 3 X1 for 2ms pulses connect terminals J5 1 and J5 2 see the figure below K i Design Assembly and Service Manual X OMEGA Ultrasonic water meter FDT100 series Page te or2e 7 2 2 Current output The current output 4 20mA is connected to terminals 5 and 6 at the output terminal board Upon attaining the output current level of 20mA corresponding to Qmax the current will not exceed this value and the error message E4 will appear on the display see Section 7 5 below To utilize the output current function use an external power source of 10 to 24V DC and the interconnection at the output terminal board as described in Section 5 2 3 The maximum permitted resistance the ohm resistance of the cable input resistance of the co operating equipment of the current output circuit shall be determined using the following formula U source V 7 Rs IO 0 02 7 3 Error identification function Meter errors shall be identified as E1 through to E5 by symbol v shown at the bottom of the display unit Error identification symbols E1 the ultrasonic signal cannot freely propagate in the sensor cavity due to the presence of air or mechanical particles E2 too great a difference between the signal travel times in and against the fluid flow direction possibly due to the presence of air at one of the probes which may be a temporary condition during the
9. 51 23 58 26 5 82 37 3 2 3 Ultrasonic sensor unit The ultrasonic sensor unit comprises a housing made of ductile cast iron material according to DIN GGG40 with two flanges according to 1502 ANSI B and two embedded ultrasonic probes The sensor housing is painted with surface finish of KOMAXIT E 2110 blue powder epoxy paint RAL 5017 The rating plate attached to the sensor body includes the basic meter specifications including the sensor size DN the accuracy class B and the rated constant flow rate in gallons per minute qp the figure next to N see the picture below LTRASONIC PROBE d SONIC PRO LABEL SENSOR BN 15 1 45psi PRESSURE 232 psi 3 2 4 Electronic unit The electronic unit and battery are placed in an aluminium box with a plastic lid The box is provided with a special valve preventing moisture condensation inside the box and up to three grummets for cables of circular cross section The surface finish is by paint of orange hue RAL 1017 Two M8 grummets are intended for cables of outside diameter 3 5 to 5mm to be connected to the selected output signal terminals On delivery these grummets are blinded The third grummet M12 is provided only in the case of the remote meter version and is intended for the cable of diameter 6 5 to 8mm connecting the sensor and the remote electronic unit The connecting cable is supplied attached to the electronic unit with the other end ready to
10. At the bottom side of the plastic lid there are two slots 8mm wide where a flat tool can be inserted to help lift the lid from the box It is recommended to insert a screwdriver into one of the slots and slightly pry upwards The locations of the slots are shown in the picture below Prior to replacing the lid apply a thin layer of glycerine or silicon oil on the sealing O ring When replacing the lid the 3mm hole at the bottom side of the plastic lid should be fitted onto the guide pin of diameter 2 5mm press fitted at the box bottom Design Assembly and Service Manual X OMEGA Ultrasonic water meter FDT100 series Page 1t oran 4 OUTPUT TERMINAL BOARD CONNECTIONS external power supply Impulse output external power supply Communication interface RS 232 Current otput Communication interface RS 232 O Not used O Imax 10mA Current output power O supply U 10 24V aa Impulse output power supply l IMP exter power supply I 4 20 mA Current otput Impulse output exter power supply 8 la L The remote meter version FDT100 SERIES the free end of the signal cable from the electronic unit is to be connected to the respective spring loaded WAGO terminals at terminal board in the sensor unit assembly The lid on the terminal box is held in position by means of four M4 screws with hexagonal socket heads for Alien
11. Customer Service Department BEFORE RETURNING ANY PRODUCT S TO OMEGA PURCHASER MUST OBTAIN AN AUTHORIZED RETUR AR NUMBER FROM OMEGA S CUSTOMER SERVICE DEPARTMENT IN ORDER TO AVOID PROCESSING DELAYS The assigned AR number should then be marked on the outside of the return package and on any correspondence The purchaser is responsible for shipping charges freight insurance and proper packaging to prevent breakac FOR WARRANTY RETURNS please have the FOR NON WARRANTY REPAIRS consult OMEGA following information available BEFORE for current repair charges Have the following contacting OMEGA information available BEFORE contacting OMEGA 1 Purchase Order number under which the product was 4 Purchase Order number to cover the COST PURCHASED of the repair 2 Model and serial number of the product under warranty and 3 Repair instructions and or specific problems relative to the product OMEGA s policy is to make running changes not model changes whenever an improvement is possible This affords our customers the latest in technology and engineering OMEGA is a registered trademark of OMEGA ENGINEERING INC Copyright 2005 OMEGA ENGINEERING INC All rights reserved This document may not be copied photocopied reproduced translated or reduced to any electronic medium or machine readable form in whole or in part without the prior written consent of OMEGA ENGINEERING INC 2 Model and serial number of the product
12. FDT100 SERIES meters the lengths of the required straight piping sections on the input SDN 3 DN FLOW DIRECTION and output sides are at least 5xDN and 3xDN respectively Minimum lengths of straight piping sections If there is any pump nearby it should be located on the output side of the meter at the distance of at least 20xDN FLOW DIRECTION Pump placement In cases where full flooding of the piping cannot be guaranteed at all times the meter sensor should be fitted in such piping section where these conditions will always be met Design Assembly and Service Manual X OMEGA Ultrasonic water meter FDT100 series mage Mor2e FLOW DIRECTION Meter placement to ensure full flooding Should the meter need be installed in a vertical piping section the water flow direction shall be upwards FLOW DIRECTION Vertical sensor position Design Assembly and Service Manual X OMEGA Ultrasonic water meter FDT100 series V age Tioreo To ensure reliable and accurate measurements under all circumstances the measured fluid shall fill the internal cavity of the sensor at all times Therefore the sensor should not be placed at the highest piping section or in a vertical piping section where the flow direction is downwards in particular in cases where a piping outlet to open tanks is anywhere near FLOW DIRECTION
13. aced at least 25cm away from any live power cables Design Assembly and Service Manual CE OMEGA Page 13 of 20 Ultrasonic water meter FDT100 series The interconnection between the meter sensor and electronic unit the remote meter version is made by a shielded cable with the shielding connected to the earth potential at the sensor terminal board It is recommended that all output signals the pulse and current outputs be connected using shielded cables with the shielding connected to the earth potential on the side of the plant control system The meter sensor shall also be carefully grounded To do that connect the grounding bolt on the sensor flange with the piping flanges using an grounding conductor of cross section of at least 4mm min 4mm green and yellow wire insulation CEOMEGA Le E1 E2 E3 E4 E5 G i0 GPM FDT 103 XA 5 2 2 Mechanical fitting The ultrasonic sensor shall be fitted into the water piping across piping flanges matching the meter flanges ANSI 5 2 3 Electrical connections The compact meter version FDT100 SERIES the electrical interconnection operation consists of connecting the output signal cables to the respective terminals on terminal board in the electronic unit The terminal board can be accessed upon removal of the plastic lid at the top of the unit box The lid is secured in position by means of two M4 screws with hexagonal socket heads for Alien wrench size 2mm
14. be connected to the sensor terminal board The meter display is located under the transparent plastic cover The push button on the unit box is used to select the desired display mode either instantaneous flow rate in gallons per minute GPM or m hour the total fluid volume in thousands of gallons or m passed through the meter sensor since the volume counter was last reset or the fluid pressure in bar The actual quantity displayed is indicated at the bottom line by the symbol v In the case of a meter failure the respective error message E1 through to E5 will be indicated by the same symbol v see the picture below A recess in the unit box is for an optical probe to be applied onto the recessed surface to read the stored data Also found under the box lid is the meter rating plate Design Assembly and Service Manual CE OMEGA Page 5 of 20 Ultrasonic water meter FDT100 series Plate including rated parameters in G 10 a GPM CEOMEGA III LILILILILILILILI EI E2 E3 E4 ES G 10 GPM FDT 103 XA ES SEN Ama PUSH BUTTON DISPLAY RECESS FOR OPTICAL PROBE Plate including rated parameters in m and m hour CEOMEGA VN WT III LILILILILILILILI El E2 E3 E4 ES m m h FDT 103 XA d ki PUSH BUTTON DISPLAY RECESS FOR ALUMINIUM HOUSING CONDENSATION BATTERY BUSHINGS PLASTIC COVER ALUMINIUM HOUSING CONDENSATION BATTERY BUSHINGS
15. bl on terminal board cover 6 OPERATIONAL START The water meter is delivered calibrated and in a fully operative condition Once it is fitted into the selected metering point in the piping bled and filled with the technological fluid it is ready for operation The condition of readiness to start is indicated by disappearance of the error messages v at the bottom of the meter display unit Using the control push button check the selection of measurement modes the instantaneous flow rate total volume passed and pressure if applicable Design Assembly and Service Manual X OMEGA Ultrasonic water meter FDT100 series Page 19 ofan 7 OPERATION 7 1 Reading the measured quantities from the meter display The eight character display unit can show either the instantaneous flow rate in gallons per minute or m hour the total volume of the fluid passed through the meter sensor since the reading was last reset in G 10 or m The reading of instantaneous flow rate has a certain delay as the displayed value is determined as the arithmetic average of the six latest measurements each taken in 1 second intervals So calculated values also appear at the meter outputs The delay becomes noticeable in the cases of rapidly changing growing or falling flow rate Meter errors will be indicated on the display Due to the limited power capacity of the meter the various display modes can only be selected in intervals of 1 second or long
16. eie aV MM 4 3 2 5 Separate sensor unit terminal board 0 ccc ccseescesscesecesecesecesecssecssecssecsssesesessesesesssesscasceascsaeessecssecsaeents 6 3 2 6 Meter handling REM H 4 TECHNICAL SPECIFICATIONS e ceeeeieeseeeeee enean ann tn nanus ausa nass IIR PR RR Pa Rad aas ss sE DR Rasa sa dass sw sess a asas sa ses s4 8 5 PROJECT DESIGN AND METER INSTALLATION 1nseeeee eene n nnne nenn nn na unas nn sea nasa sa nasa aaa ERR E EEN 9 5 1 Project design of systems including ultrasonic water meters esee eres reete teens tatu a instans 9 ze ICI POTRETE EET 12 5 2 1 General recommendations ENEE 12 5 2 2 Mechanical fittinig seess eee Rein Ga ieee aha ees AER EROR EE 13 52 3 Electrical COMNECHONS EE 13 5 2 4 Seals on EE 15 6 OPERATIONAL START pee 17 T OPERATION ace d M 18 7 1 Reading the measured quantities from the meter display eerte esee eese teet ente nenac 18 PME aeup IelcMeee e e esaea ESs 18 Ke E UIT Vellei 18 Ke EE e C Welle m EP 19 2 Error nie ilnnBi lini ie 19 7 4 Battery life and replacement eese ee eren esses teens ne estan tata n stata sse ta ta
17. er It is therefore recommended that the display mode selection push button be always depressed for at least one second and the next selection command be given after another 1 second or longer Depending on the reading of the total fluid volume passed the decimal point on the display will move as shown in the following picture OOOO Decimal point position for total volume less than 100 000 G 10 m Displayed data in G 10 m Decimal point position for total volume greater than 10 000 000 G 10 m Decimal point position for Decimal point position for total volume between total volume between 100 000 G 10 m and 1 000 000 G 10 m 1 000 000 G 10 m and 10 000 000 G 10 m 7 2 Electrical outputs 7 2 14 Pulse output An pulse output is found on all FDT100 SERIES water meters irrespective of their version or configuration In includes an optocoupler connected to terminals 7 and 8 terminal board X1 the permitted current loading is 10mA the pulse length 40ms On a customer s request the pulse length can be set at 2ms If voltage pulses are required use an external power source of 5 to 25V DC connected in series with a limiting resistor so that the maximum current would not exceed 10mA The interconnection of external power source and limiting resistor is shown in the picture illustrating the interconnections at the output terminal board Section 5 2 3 above The pulse length can also be modified on site for 4
18. g the electronic module in the aluminium box and pull the module outside the box While doing that make sure you do not damage any metrological or company seals The electronic module can only be removed as far as probe conductors and output signal cables permit The battery is located in a holder at the bottom of the unit pull the battery free and replace it with a new one Mind the correct polarity as indicated on a plate on the battery holder Push the electronic module back into the box tighten the holding bolts replace the box lid fix its position with screw and apply assembly seal on one of them Design Assembly and Service Manual X OMEGA Ultrasonic water meter FDT100 series mage etonan PLATE SHOWING BATTERY POLARITY BATTERY DIRECTION OF REMOVING BATTERRY FROM HOLDER MOUNTING SCREWS M3 ELECTRONIC UNIT ASSEMBLY STICK ON SEALS The electronic module removed from its box 8 CALIBRATION The standard calibration is done with respect to the pulse output In that case the measurement error at the current output will be approx 1 higher than that at the pulse output If the customer requires calibration for the current output it can be done and the additional error of about 1 will then appear at the pulse output WARRANTY DISCLAIMER OMEGA ENGINEERING INC warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase OMEGA s WARRANTY add
19. ly that the parts manufactured by the company will be as specified and free of defects OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER EXPRESSED OR IMPLIED EXCEPT THAT OF TITLE AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED LIMITATION OF LIABILITY The remedies of purchaser set forth herein are exclusive and the total liability of OMEGA with respect to this order whether based on contract warranty negligence indemnification strict liability or otherwise shall not exceed the purchase price of the component upon which liability is based In no event shall OMEGA be liable for consequential incidental or special damages CONDITIONS Equipment sold by OMEGA is not intended to be used nor shall it be used 1 as a Basic Component under 10 CFR 21 NRC used in or with any nuclear installation or activity or 2 in medical applications or used on humans Should any Product s be used in or with any nuclear installation or activity medical application used on humans or misused in any way OMEGA assumes no responsibility as set forth in our basic WARRANTYDISCLAIMER language and additionally purchaser will indemnify OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the Product s in such a manner RETURN REQUESTS INQUIRIES Direct all warranty and repair requests inquiries to the OMEGA
20. operation of filling the piping with fluid or due to contamination of the face part of one of the probes E3 A D converter error e g due to strong interference E4 flow rate in excess of qs E5 flat meter battery Should the display go completely blank check the battery condition the voltage should be over 3V Replace defective battery using the procedure described in Section 7 6 Should the battery replacement fail to restore the correct meter function send the meter for repair to the manufacturer s service centre 7 4 Battery life and replacement Electronic unit is equipped with battery SAFT LITHIUM 3 6V 3 6Ah LSH 14 light size C containing less than 1g of lithium and is equipped with plastic case capable of using of either C and D size battery Lifetime of LSH 14 lite battery is 1 year since date of production and can be replaced by battery LITHIUM 3 6V 16Ah LS 33600 size D with lifetime up to 8 years with using of communication functions up to 6 years Plastic case is not used for D size battery LSH 14 light battery is used as a transport battery because it is non restricted to transport non assigned to Class 9 according Lithium battery transport regulation Ref TC LSH 14 light 09 03 1 To replace the meter battery first remove the plastic lid on the electronic unit box held in position by two M4 screws with hexagonal socket heads use Alien wrench size 2mm see Section 5 2 3 then loosen three M3 screws holdin
21. s an additional one 1 month grace period to the normal one 1 year product warranty to cover handling and shipping time This ensures that OMEGA s customers receive maximum coverage on each product If the unit malfunctions it must be returned to the factory for evaluation OMEGA s Customer Service Department will issue an Authorized Return AR number immediately upon phone or written request Upon examination by OMEGA if the unit is found to be defective it will be repaired or replaced at no charge OMEGA s WARRANTY does not apply to defects resulting from any action of the purchaser including but not limited to mishandling improper interfacing operation outside of design limits improper repair or unauthorized modification This WARRANTY is VOID if the unit shows evidence of having been tampered with or shows evidence of having been damaged as a result of excessive corrosion or current heat moisture or vibration improper specification misapplication misuse or other operating conditions outside of OMEGA s control Components in which wear is not warranted include but are not limited to contact points fuses and triacs OMEGA is pleased to offer suggestions on the use of its various products However OMEGA neither assumes responsibility for any omissions or errors nor assumes liability for any damages that result from the use of its products in accordance with information provided by OMEGA either verbal or written OMEGA warrants on
22. sas tasa sse te sss n sta sa sene tn tasa stan 19 8 CALIBRATION ctt cnini cer ind nn cd Cr o e a CE CREE EORR RD E EXE KR UR E V 20 Design Assembly and Service Manual X OMEGA Ultrasonic water meter FDT100 series mages oret 1 APPLICATION Battery powered ultrasonic water meters of the FDT100 SERIES type series are intended for technological measurements of instantaneous flow rate and consumption in water supply networks and archiving of the measured data Measurement of water pressure in piping is also possible The technical capabilities including high measurement accuracy and long term stability over a wide range of measured values make it possible to use the meters apart from the conventional measurements for monitoring leakage and the general condition of water supply networks The FDT100 SERIES water meters do not require external power do not include any moving parts or filters to prevent choking with mechanical impurities and compared to conventional water meters have significantly lower hydraulic losses Flow meters shall be used in standard non explosive environments Any installation of flow meter must be in conformity with technical conditions mentioned in this manual 2 MEASUREMENT METHOD The measurement method used is a single beam pulse transit time method based on determination of the time needed for an ultrasonic pulse wave to cross the distance between two probes embedded in piping Each of the probes f
23. sonic water meter FDT100 series Page Wor st 4 TECHNICAL SPECIFICATIONS AAAA 32 40 50 65 80 100 125 150 200 sen fow rateg LSPM se 90 120 220 aso soo emo Dese mmf 12 20 30 so so t20 200 300 360_ Continuous fow rateg LPM 26 45 os 110 175 265 440 660 100 mmn e 10 15 25 40 so 100 150 250_ 0 8 3 5 8 12 20 30 50 Innen en SM tose f os t 2 ss ss re nz ws e Transient flow rate q EE e Li battery 3 6V 3 6Ah type LSH 14 light lifetime 1 year from the day Power of production standard transport battery Li battery 3 6V 16Ah type LS 33600 minimum lifetime 6 to 8 years since a date of production customer supplied IP 67 less than 0 1 bar at q Optional accessories Oo O remote meter version maximum cable length 5m R Design Assembly and Service Manual X OMEGA Ultrasonic water meter FDT100 series Page s eren 5 PROJECT DESIGN AND METER INSTALLATION Compliance with standards ISO 4064 1 ISO 4064 2 and strict observance of the recommendations in this Manual are required in all project design work regarding application and installation of the FDT100 SERIES ultrasonic water meters in water supply networks 5 1 Project design of systems including ultrasonic water meters In water supply and distribution systems water meters should be located so as to ensure maximum measurement accuracy In the case of the
24. unctions as the sender and receiver in turns so that the ultrasonic wave travels in turns in and against the water flow direction This arrangement allows for effective elimination of errors due to asymmetry in the probe locations 3 TECHNICAL DESCRIPTION 3 1 Meter characteristics The FDT100 SERIES ultrasonic water meter is an electronic device used to measure the water flow rate in a fully flooded piping It is manufactured and supplied in two versions compact and remote The compact version designated FDT100 SERIES has the electronic unit attached directly onto the flow sensor housing The remote version designated FDT100 R SERIES has the electronic unit separated from the sensor and connected with it by means of a cable length 6m The electronic unit is accommodated in a separate box that can be fitted on a wall In the standard configuration the meter software allows for measuring and display of the instantaneous flow rate and total volume of water passed through the meter since the volume counter was last reset The meter is provided with a passive pulse output including an optocoupler The pulse length is 40ms The meter include passive current output The meter is supplied suitable for use in drinking water supply systems Design Assembly and Service Manual X OMEGA Ultrasonic water meter FDT100 series mage sore 3 2 Meter design 5 35 136mm ELECTRONIC CONTROL UNIT ULTRASONIC
25. wrench size 3mm The output signal cable connections the terminal board are made in the same way as shown above for the case of the compact meter version Design Assembly and Service Manual X OMEGA Ultrasonic water meter FDT100 series Page 12 0120 Ip VIEW P of the electronic unit with the top cover removed Communication interface RS 232 Current otput external power supply A Impulse output external power supply plo ue e ee e e io ares 3 FDT 100 AUXILIARY ELECTRONIC UNIT series 5 2 4 Seals on meters The water meters used as technological meters shall be provided with clamp on and stick on company and assembly seals as shown in the following illustration pictures The compact meter version type FDT100 SERIES Design Assembly and Service Manual CE OMEGA Page 16 of 20 Ultrasonic water meter FDT100 series Clasp on seals S N 22686 06 PRESSURE arrant Stick on seals VI EW R with top cover removed Stick on assembly seal on terminal board cover The remote meter version type FDT100 SERIES Design Assembly and Service Manual X OMEGA Ultrasonic water meter FDT100 series mage Toren FLOW SENSOR Clasp on assembly seals on connecting cable housing Clasp on seal Clasp on seal BN 15 1 45psi Stick on seals VIEW R DATA PROCESSING ELECTRONIC UNIT with top cover removed IR Stick on assem
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