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SONOTHERM SN30X0

1. ELIS PLZEN a s Lucni 15 P O BOX 126 304 26 Plzen Czech Republic tel 420 377 517 711 fax 420 377 517 722 Es 90234K a Design Assembly and Service Manual Page 10 of 28 Ultrasonic heat meter SONOTHERM SN30X0 ELIS PLZEN a s 4 TECHNICAL PARAMETERS 4 1 Rated inner diameters and limit flow rates for sensor UC 3 0 The following table shows the limit flow rate values for particular sensor sizes DN olo 00 18 10 200 250 300 iq mmi 20 32 50 60 150 240 350 500 900 1400 2000 un mm 02 032 05 o8 15 24 35 50 90 14 20 aco mm 0 07 009 014 022 037 06 09 12 22 35 5 where ds overloading maximum flow rate Ap continuous rated flow rate Amin minimum flow rate Qnecv minimum flow rate sensitivity threshold level The flow rate value upon reaching of which the flow meter starts to indicate and evaluate the measured data is normally set by the manufacturer at quecv On customer s request this threshold level can be set at any other value within the interval qnecyv 0 025q Pressure losses of ultrasonic sensors UC 3 0 ELIS PLZEN a s Lucni 15 P O BOX 126 304 26 Plzen Czech Republic tel 420 377 517 711 fax 420 377 517 722 Es 90234K a Design Assembly and Service Manual Page 11 of 28 Ultrasonic hea
2. Basic requirements on straight pipe sections at the meter input and output If there is a pump at the sensor input side the recommended length of straight pipe section is 20 DN If there is a fully opened valve the recommended length of straight piping is 10 DN If there is a control valve or partially opened valve or a flap valve the recommended length of straight piping at the meter input side is 40 DN 20 DN eo pad GEN Sk a Required straight pipe sections for disturbances at the input side of the flow meter al il A straight pipe section of the length 3 DN is required for such disturbances at the output side Required straight pipe section for disturbances at the output side of the flow meter In the cases where complete flooding of the water pipe cross section cannot be guaranteed at all times the flow sensor can be located at a bottom pocket of the piping to ensure permanent flooding ELIS PLZEN a s Lucni 15 P O BOX 126 304 26 Plzen Czech Republic tel 420 377 517 711 fax 420 377 517 722 Es
3. nanana naaawa awan naan cece GG GO NANA AKAGNN NGANGA ANA AAAAAGKGNG AA NAAAAGKNNG ANNA NAAAAEANGENAAAANANGKA0 ANNA NAAKnGKKK0a0aANA 25 9 TESTING sestscecseststeedesczcnddastsivecastetsesacdensesavecessscklendsvavereussacietistasicesscanisteedaebessevexdchies cvvcesdsexteaadlevenancdestslicdestanddesys 25 10 CALIBRATION AND VERIFICATION 010G NANANA GIG 25 11 ORDERING oanzecciscsiccesacpeicesacecscxsceidextacetdcnsaseiasscacesadecdcheiancecessanieceisscieceiadncudssacneecexdapcacesdnqcecesacedaepedsniedseceeiadecasrs 25 12 PACKING ciscssiccctcsssccsciecdeccssscecscscndeccandbdedcanceiecczecsesduadeaiecsacceievsaueriessacieaessateedeacaedeisacaecsiaccsedeaselaivedaccasteaesiasesdasiis 25 13 PRODUCT ACCEPTANCE UA KAI ARNINA AA NIN BANA BANGBARAN AA 26 14 WARRANTY CONDITIONS 0 SANANG KARA KARA 26 15 RATING PLATES ira e aaae aaae aaa e a a Aa aa aaae a aaa a Aa aaea aaa aa SEa aE anaa 26 ELIS PLZEN a s Lucni 15 P O BOX 126 304 26 Plzen Czech Republic tel 420 377 517 711 fax 420 377 517 722 Es 90234K a Design Assembly and Service Manual Page 3 of 28 Ultrasonic heat meter SONOTHERM SN30X0 ELIS PLZEN a s 1 APPLICATION The meter system SONOTHERM SN30XO is intended for measurement of absolute heat quantities energy transferred by water in closed circle heating systems It can be used as commercial meter to determine the heat quantities used or transferred at heated premises heat exchanger stations or
4. impulse counter for hot water or other signals contact input fmax 12 Hz impulse length 40 ms max voltage 3 V communication interface SIOX Bus compatible with meters of the model series SWM 820 SWM 690 and other measuring systems based on such devices alarm signal open collector output Uce max 24 V Ice max 20 MA impulse length 250 ms protection of sensor IP 67 ELIS PLZEN a s Lucni 15 P O BOX 126 304 26 Plzen Czech Republic tel 420 377 517 711 fax 420 377 517 722 Es 90234K a Design Assembly and Service Manual Page 14 of 28 kg Ultrasonic heat meter SONOTHERM SN30X0 ELIS PLZEN a s 5 METER APPLICATION DIRECTIONS AND RULES 5 1 Application directions and rules for sensor UC 3 0 When selecting the measuring location in the piping it is necessary to observe certain rules so that the measurement accuracy would not be adversely affected For sensor UC 3 0 the basic requirements are straight piping sections of the length 5 D at the input side and 3 D at the output side where no flow disturbing elements should be located such as 90 bend or pipe sections with smaller or larger diameter bag Basic requirements on straight pipe sections at the meter input and output If there is a pump at the sensor input side the recommended length of straight pipe section is 20 DN If there is a fully opened valve the reco
5. 75 Total period of previous error duration Minutes FORMAT To switch over between code groups depress the push button and hold it depressed for longer time To switch from one code to the next within a code group depress the push button shortly Display format explanation RRMMDD RR last two digits of year MM month DD day in the month HHMM HH hours MM minutes Comments explanations 1 The calorimetric counter has two registers to store data on accumulated flow volume register 11 contains data on the total accumulated flow volume passed through the flow meter register 70 contains data on the accumulated flow volume used in heat value calculations Differences in the data stored in these registers can help identify errors in the temperature sensors whose signals are used for energy calculations 2 To display the next reading on specified date depress the push button until you arrive at change of date After passing through display code 37 the last reading on specified date will be displayed Then depress the push button to return to the normal display mode 3 To display the next monthly reading on specified date depress the push button until you arrive at change of date After passing through display code 47 the last monthly reading on specified date will be displayed Then depress the push button to return to the normal display mode 4 The right character X in the display code AX is a su
6. 2 Post warranty services Post warranty services are understood to be repairs of any and all product defects originating after the mutually agreed warranty period Such repair whether performed at the manufacturer s plant or elsewhere as directed by the customer shall be invoiced to the customer who shall be obliged to pay the invoiced sums In the cases of post warranty repairs of standard meters the meter parameters shall consequently be verified at the respective National Metrological Centre Any requirement regarding post warranty services shall be made known to the manufacturer in writing using E mail fax or registered letter 9 TESTING On every product the manufacturer performs a detailed inspection of the product completeness and quality in reference to the respective quality assurance standards Following this inspection the product is subject to tests performed in compliance with the agreed test specifications Prior to release from the test station every product is subject to a test run over a minimum period of 15 hours 10 CALIBRATION AND VERIFICATION In the cases of standard meters the manufacturer shall provide for primary verification of the correct design of the flow meter and calorimetric sections at the Authorized Metrological Centre The ultrasonic flow meter is tested and metrologically verified at three specified operational modes within the required flow rate range On customer s request and or in the cases of higher
7. 304 26 Plzen Czech Republic tel 420 377 517 711 fax 420 377 517 722 Es 90234K a Design Assembly and Service Manual Page 13 of 28 ka gf Ka Ultrasonic heat meter SONOTHERM SN30X0 ELIS PLZEN a s 4 6 Basic technical characteristics of the system Temperature range measured liquid Temperature difference At Separate electronic data processing unit model MTU 2 0 dimensions width height depth 230 x 217 x 85 mm weight power supply 90 260 VAC 50 60 Hz or 24 V AC DC 10 back up power source Li battery 3 V line fuse T 250 mA 250 V protection against electric shock Automated disconnection from line voltage in the TN S CSN 332000 4 4 network Ambient temperature 5 to 55 C Storage temperature 10 to 70 C at relative humidity not exceeding 70 Protection class accessory electronic unit IP 65 Data output M Bus standard EN 1434 4 IEC 870 IR optocoupler 4 7 Optional calorimeter accessories On request the calorimetric counter can be supplied with the following optional devices functions display with illuminated background When using other optional devices it should be noted that there are two free terminals available marked as rez reserve where any of the following signals can be connected impulse output of the heat energy or volume signals open collector output Uce max 24 V Ice max 20 mA impulse length 250 ms impulse input
8. Ultrasonic heat meter SONOTHERM SN30X0 ELIS PLZEN a s 3 3 4 Electronic accessory to calorimeter The electronic calorimetric counter is a modern microprocessor based device used in combination with an ultrasonic flow meter to measure heat energy for commercial purposes The calorimeter can process and store large quantities of data so that the user has detailed information on the current status of the measuring point as well as the measured data over long periods of time The counter input receives signals from the impulse sender of the flow meter and two temperature sensors With each impulse from the flow meter received the temperatures of the incoming and outgoing liquid are measured The temperature data and flow meter impulses are stored in the internal memory circuits of the counter The heat energy data are calculated using the data on the temperature difference flow rate and the associated thermal coefficients these data are integrated in the counter memory and their aggregate values shown on the counter display If the frequency of the output impulses from the flow meter is higher than 1Hz the impulses representing the flow volume passed through the meter are cumulated and the heat measurements are taken once a second If the interval between impulses exceeds 60s each 60s temperature readings are taken and shown on the counter display but the heat measurement calculation takes place only after the next impulse from the flow met
9. at heat generating plants The system consists of a flow measuring section ultrasonic flow meter and an electronic calorimeter including the necessary data processing and archiving facility 2 MEASUREMENT PRINCIPLES 2 1 Measuring part of ultrasonic flow meter The flow meter section is based on a single channel transit time impulse method where the flow rate of the measured liquid is determined from the flight time of ultrasonic signal between the sensor probes The ultrasonic signal is sent and flow rate measurements are performed in turns in and against the flow direction whereby the error due to non symmetric positions of the ultrasonic probes is eliminated The ultrasonic signal propagation time in the flow direction in flow sensor UC 3 0 is defined by the equation B l l POONG a 5 where distance between the head parts of ultrasonic probes m c signal propagation speed in the given liquid m s v flow speed of the measured liquid m s l aggregate thickness of bottom parts of both probes m c signal propagation speed in the probe material m s When the ultrasonic signal travels in the direction against the flow the expression for the signal propagation time tz differs from t in that the flow speed is negative a s C V COSQ C Parameters 11 a c1 are constants for the given sensor probe The ultrasonic signal
10. be displayed using a multi function control button see the table defining the display codes in either Operational or Testing modes on page 21 Electronic communication with the meter system is possible using either the M Bus interface EN 1434 4 standard or the IR interface on the front panel The M Bus signals are connected to the meter terminal board In the cases of a line voltage failure the ultrasonic flow meter will discontinue operation but not the calorimeter where a back up battery will supply the necessary power The calorimeter will thus save all hitherto measured data and record the period of power down time The calorimetric counter also has specific diagnostic functions it can identify thermometer failures shorts or open circuits or their combinations see the Error codesError codeserror codes on page 24 ELIS PLZEN a s Lucni 15 P O BOX 126 304 26 Plzen Czech Republic tel 420 377 517 711 fax 420 377 517 722 Es 90234K a Design Assembly and Service Manual Page 6 of 28 Ultrasonic heat meter SONOTHERM SN30X0 ELIS PLZEN a s 3 2 Meter connection to heating system E elt HA p r optional communication interfac we i Feed pipin C6 3 IH Thermometer Pt Il Pt 500 Heated ob ect frasonic sensor Thermometer Pt dl T IP Son Pa Return pipin 3 3 Meter design 3 3 1 Ultrasonic sensor
11. drawing When the ultrasonic signal travels in the direction against the flow the expression for the signal propagation time tz differs from t in that the flow speed is negative h k ee i t Parameters 11 a c1 are constants for the given sensor probe The ultrasonic signal propagation speed can be expressed as follows Vv ct v measurements in the flow direction V C V measurements against the flow direction The difference between the ultrasonic signal propagation speeds in and against the flow direction is proportional to the liquid flow speed v m s v Vv vai 2 2 The instantaneous flow rate can be determined using the equation q v s k v m 7s where v liquid flow speed m s s sensor cross section m7 k v corrective coefficient a function of the instantaneous liquid speed This coefficient modifies the resulting q with respect to the liquid flow speed profile in the sensor ELIS PLZEN a s Lucni 15 P O BOX 126 304 26 Plzen Czech Republic tel 420 377 517 711 fax 420 377 517 722 Es 90234K a Design Assembly and Service Manual Page 5 of 28 Ultrasonic heat meter SONOTHERM SN30X0 ELIS PLZEN a s 2 2 Measuring part of calorimeter The calculation of the heat power value uses the following formula it is assumed that the heat exchanger is absolutely tight and no heating water is being extracted from the heating system 4 4 li 0 4 6 q plt i t i t with th
12. propagation speed can be expressed as follows v C V cosa for measurements in the flow direction V C V cosa for measurements against the flow direction The difference between the ultrasonic signal propagation speeds in and against the flow direction is proportional to the liquid flow speed v m s v Vv yal A 2 cosa ELIS PLZEN a s Lucni 15 P O BOX 126 304 26 Plzen Czech Republic tel 420 377 517 711 fax 420 377 517 722 Es 90234K a Design Assembly and Service Manual Page 4 of 28 Ultrasonic heat meter SONOTHERM SN30X0 ELIS PLZEN a s The instantaneous flow rate can be determined using the equation q v s k v m 7s where v liquid flow speed m s s sensor cross section m k v correction coefficient a function of the instantaneous liquid speed This coefficient modifies the resulting q with respect to the liquid flow speed profile in the sensor The ultrasonic signal propagation time in the flow direction in flow sensor UC 4 0 is defined by the equation ee aa Ge e 5 where l axial distance between the reflectors m c signal propagation speed in the given liquid m s v flow speed of the measured liquid m s l aggregate thickness of bottom parts of both probes m c1 signal propagation speed in the probe material m s l dimension see the above
13. to material and or part faults shall be repaired free of charge The warranty period shall be extended by the time the product was inoperative due to a warranty repair Warranty shall not be applicable to any product defects due to incorrect system assembly and or installation intentional damage pilferage theft or any faults due to circumstances classified as force majeure 15 RATING PLATES Flow sensor plate Electronic unit plate bm PLZEN a s we leong INPUT POWER PROTECTION IP65 ELIS PLZE a s 2 n e e DIMENSION DN kg PROTEC PRESSPN MPa LIQUID TEMPERATURE 0 150 c System plate SYSTEM LABEL SN 30X0 SERIES NUMBER CERTIFICATE No comaoress cLassofaccuRracY NOMINAL HEAT RATE fel MEASURED SYSTEM TEMP SENSOR NOMINAL HEAT DIFFERENCE ec Qmax OF FLOW METER m h FLOW SENSOR il MINIMUM HEAT DIFFERENCE fec PLACING OF FLOWMETER piping PROD No ELIS PLZEN a s Lucni 15 P O BOX 126 304 26 Plzen Czech Republic tel 420 377 517 711 fax 420 377 517 722 Es 90234K a Design Assembly and Service Manual Page 27 of 28 Ultrasonic heat meter SONOTHERM SN30X0 ELIS PLZEN a s Product order form SN30X0 Measurem location Required type of system Parameter to be specified Minimum flow rate ptm Maximum flow rate ptr Type of measured liquid LC Ea Temperature range of measuredliquid o O O oe O Rated pr
14. user and the meter manufacturer Should any meter defect be proved irrepairable due to the above reasons the manufacturer shall replace it by a new faultless product of the same type ELIS PLZEN a s Lucni 15 P O BOX 126 304 26 Plzen Czech Republic tel 420 377 517 711 fax 420 377 517 722 Es 90234K a Design Assembly and Service Manual Page 25 of 28 Ultrasonic heat meter SONOTHERM SN30X0 ELIS PLZEN a s Warranty services can only be performed by the manufacturer ELIS PLZEN a s or a duly authorised service centre or a product distributor who have received valid authorisation in writing and have been trained in the necessary skills by the manufacturer Warranty services shall not be applicable to products with damaged company or metrological seals defects due to incorrect product assembly and or installation defects due to incorrect product application product theft or pilferage defects due to force majeure circumstances Any requirement regarding warranty services shall be made known to the manufacturer in writing using E mail fax or registered letter Should the manufacturer not acknowledge the user s warranty claim as justified it shall inform the user accordingly in writing and invoice to the same the repair costs involved In the cases of any warranty repairs performed on standard meters the meter parameters shall consequently be verified at the respective National Metrological Centre 8
15. using the tables in Sections 4 1 and 4 2 above Then the pressure loss of the sensor should be taken into account although the pressure loss is generally very low it adds up to the total losses in the piping in particular at higher liquid flow velocities In the cases where the standard sensor design does not meet the operational requirements specific settings of parameters qs a Grin for given sensor size can be made on request In particular meter applications the pressure loss characteristics should be considered with the understanding that Amin Cannot be set lower without affecting the rated measurement accuracy and the value of q for the given sensor size should not exceed the maximum limit value shown in the tables in Sections 4 1 and 4 2 4 4 Technical specifications of flow metering part Temperature of measured liquid Protection class sensors UC 3 0 UC 4 0 Meter installation in piping Flanges 11 standard CSN 131160 0 or Screwed fitting with G type thread Sensor cable length Standard 5 m Maximum 100 m Difference in cable lengths Maximum 0 1 m only with sensor model UC 4 0 4 5 Communication System SONOTHERM SN30XO is provided with communication interface M Bus standard EN1434 4 with the respective signals connected to the meter terminal board and IR interface accessible via a window in the front panel The measured data can be transferred using both interface systems ELIS PLZEN a s Lucni 15 P O BOX 126
16. volume used in energy calculations Total period of error duration Previous error code error type and duration Up to 37 monthly memory registers where each register contains the same type of data as those listed under Readings on the selected date Recommended battery replacement date Display codes on the system LCD in the operating and testing modes of operation DISPLAY CODE DISPLAYED DATA OR INFORMATION FORMAT 10 Operating mode Accumulated energy 11 12 13 14 Impulse register 2 accumulated value on customer order 15 Error code 16 Minutes 20 21 22 Input temperature T1 23 24 30 RRMMDD 31 32 33 34 35 36 37 Total error time if any Minutes 40 RRMMDD 41 42 43 44 45 46 Error code any error existing on date of data memory storage 47 Total period of error duration if any Minutes 50 Meter operation time Hours Actual date RRMMDD 52 Actual time HHMM 53 Recommended battery replacement date RRMMDD Qi ELIS PLZEN a s Lucni 15 P O BOX 126 304 26 Plzen Czech Republic tel 420 377 517 711 fax 420 377 517 722 Es 90234K a Design Assembly and Service Manual Page 23 of 28 Ultrasonic heat meter SONOTHERM SN30X0 DISPLAY CODE DISPLAYED DATA OR INFORMATION 60 Communication address AX BX 63 Litres impulse 64 Flow meter location in piping branch T2 L or T1 H L H 70 71 72 Hour 73 Minutes 74
17. 0 Low flow rate 0041 007F Combination of error 0040 and any above error s 0080 Power supply failure line voltage 230V or bus power 0081 OOFF Combination of error 0080 and any above error s 0100 Recommended battery replacement date not observed 0101 O1FF Combination of error 0100 and any above error s The most frequent errors in the table are printed in bold type The remaining errors may occur only rarely Errors marked with will not occur if the electronic accessory works correctly Instantaneous values Instantaneous power value display code 20 and instantaneous flow rate display code 21 are calculated only subsequently If the impulses from the flow meter arrive in intervals longer than 4 seconds the values of instantaneous power and flow rate are calculated after each new impulse If this interval is shorter than 4 seconds the impulses are cumulated and the instantaneous value calculations are carried out every 4 seconds 8 WARRANTY AND POST WARRANTY SERVICES 8 1 Warranty services Warranty services are understood to be repairs of products executed free of charge during the contractually agreed warranty period Such repairs can either be performed at the manufacturer s plant or at that of any authorised partner of the manufacturer Warranty repair is understood to be repair of any product defects due to faulty materials parts or product design executed free of charge within a period agreed between the customer
18. 377 517 722 e mail sales elis cz http www elis cz Issue No 2 ELIS PLZEN a s Lucni 15 P O BOX 126 304 26 Plzen Czech Republic tel 420 377 517 711 fax 420 377 517 722 Es 90234K a
19. 90234K a Design Assembly and Service Manual Page 17 of 28 Ultrasonic heat meter SONOTHERM SN30X0 ELIS PLZEN a s Meter location at a bottom pocket in the piping If the meter is to be installed in a perpendicular position the flow direction shall be from the bottom upwards E Flow meter installed in a perpendicular position To ensure correct functioning of the flow meter the sensor shall always be completely filled with the measured liquid It shall therefore never be located at a top pocket in the piping or in a perpendicular position with the flow direction downwards Pressure losses in the flow sensors related to liquid flow velocity are shown in the table in Section 4 2 above ELIS PLZEN a s Lucni 15 P O BOX 126 304 26 Plzen Czech Republic tel 420 377 517 711 fax 420 377 517 722 Es 90234K a Design Assembly and Service Manual Page 18 of 28 Ultrasonic heat meter SONOTHERM SN30X0 ELIS PLZEN a s 5 3 Data processing electronic unit In the cases of a commercial meter application the data processing electronic unit shall have an independent power supply line 230V 50Hz with an overcurrent circuit breaker the recommended rating 6A that can be sealed in the ON positi
20. Pa Er Yng Design Assembly and Service Manual Page 1 of 28 UP i ELIS PLZEN a s Ultrasonic heat meter SONOTHERM SN30X0 Ultrasonic heat meter SONOTHERM SN30X0 ELIS PLZEN a s Lucni 15 P O BOX 126 304 26 Plzen Czech Republic tel 420 377 517 711 fax 420 377 517 722 Es 90234K Design Assembly and Service Manual Page 2 of 28 Ultrasonic heat meter SONOTHERM SN30X0 ELIS PLZEN a s CONTENT 1 APPLICATION P T 3 2 MEASUREMENT PRINCIPLES 0G LAGALAG KIDDING 3 2 1 Measuring part of ultrasonic flow meter 070 a aasa cece ee aaa NAAN NG GN GG GG NA eae ceeeeeseceaaeaeeeeeeesecaeaeeeeeeeseeeucaeeeeeeeeeeeeed 3 2 2 Measuring part of Calorimeter masasanaaa a aaa a UNANG NGANGA NA eae ee ANAN ANNA NA ae ce ee NGANGA AAAKASANAN ANNA ENESESSE ANGKAN ANANKKKKANANAA ANA 5 3 TECHNICAL DESCRIPTION oa BANGLA GARA AA 5 3 1 General GESCMPtlON aa kaan sa Lakan kaa A E E ARKADA pba GERA NG 5 3 2 Meter connection to heating system 2 1 1111 aasa AG GAPANG GAGA 6 3 3 Meter GOSIQN AA AA evi fe banconedsbeacesananiente 6 3 3 1 Ultrasonic sensor UC 3 0 including terminal box ccccccccceseseeeeeeeeeseneeeeceeseaeeseneesneetsaeeteaeeseaeeseaeesiaeetieeseneeteneess 6 3 3 2 Ultrasonic sensor UC 4 0 including terminal box ccccccccceesceseneeeeeeeseneeteaeeteneeseaeeseneeteaeeseneeseaeeseaeeteaeetieetsneeseeees 7 33 9 Electronic accessory to HOW MeTeni a aa NANA nece
21. UC 3 0 including terminal box Ultrasonic sensor UC 3 0 is essentially a stainless steel welded structure consisting of an inner pipe with welded on pieces holding ultrasonic probes The inner pipe is provided with flanges made of carbon or stainless steel as required by the customer The ultrasonic probes are embedded in hermetic carbon or stainless steel covers Attached to the sensor cover is a terminal box an aluminium casting provided with two leadthroughs PG 9 and a special valve preventing condensation inside the box The terminal box is mounted on the sensor body across a heat insulation pad The sensor is painted with powder paint hue RAL 7035 and the terminal box with paint RAL 7016 The main dimensions of various sensor models are shown in the following table 256 285 235 360 360 360 450 450 450 ELIS PLZEN a s Lucni 15 P O BOX 126 304 26 Plzen Czech Republic tel 420 377 517 711 fax 420 377 517 722 Es 90234K a Design Assembly and Service Manual Page 7 of 28 kg Ultrasonic heat meter SONOTHERM SN30X0 ELIS PLZEN a s Dimensional sketch 3 3 2 Ultrasonic sensor UC 4 0 including terminal box Ultrasonic sensor UC 4 0 consists of a body a casting made of bronze alloy according to Czech standard CSN 42 31 35 RG 5 including two ultrasonic probes and two reflectors The body can be supplied with either end flan
22. e following instantaneous parameter values Qt heat power transferred by heating water J h Am mass flow rate of heating water vh qv volume flow rate of heating water m h i1 t1 enthalpy of water in the feed piping J kg i2 t2 enthalpy of water in the return piping J kg p t specific density of heating water kg m t water temperature at flow rate measurement spot C t water temperature in feed piping C to water temperature in return piping C The quantity of heat transferred Q is defined as the integral over time of the instantaneous heat power values Q fq dt J 3 TECHNICAL DESCRIPTION 3 1 General description The meter system SONOTHERM SN30XO determines the heat quantity delivered or transferred by calculation in a calorimetric counter using data on the water volume passed through the ultrasonic flow meter and the water temperatures in the feed and return pipes Type designation of meter systems and their component parts System Accessory electronic unit Flow sensor SN3030 MTU 2 00 UC 3 0 SN3040 MTU 2 00 UC 4 0 The quantity of heating water passed through the feed or return piping is measured by means of an ultrasonic flow meter The water temperatures in the feed and return pipes are measured by two resistance platinum temperature sensors Pt 100 or Pt 500 These measured data are processed in a calorimetric counter with LCD display The operator can select the data to
23. ed in a perpendicular position To ensure correct functioning of the flow meter the sensor shall always be completely filled with the measured liquid It shall therefore never be located at a top pocket in the piping or in a perpendicular position with the flow direction downwards in particular in the cases where there are pipe outlets into the open air immediately after the measuring spot Examples of incorrect placement of the flow meter sensor Pressure losses in the flow sensors related to liquid flow velocity are shown in the table in Section 4 1 above ELIS PLZEN a s Lucni 15 P O BOX 126 304 26 Plzen Czech Republic tel 420 377 517 711 fax 420 377 517 722 Es 90234K a Design Assembly and Service Manual Page 16 of 28 Ultrasonic heat meter SONOTHERM SN30X0 ELIS PLZEN a s 5 2 Application directions and rules for sensor UC 4 0 When selecting the measuring location in the piping it is necessary to observe certain rules so that the measurement accuracy would not be adversely affected For sensor UC 4 0 the basic requirements are straight piping sections of the length 5 D at the input side and 3 D at the output side where no flow disturbing elements should be located such as 90 bend or pipe sections with smaller or larger diameter Ss ILA SIT
24. ength Regarding function the electronic accessory to the flow meter can be divided into the following parts circuits isolating the meter probes switches controlling the probe signals ultrasonic sender ultrasonic receiver including sensitivity control circuitry interface circuits communicating with the data processing computer computer output circuits generating impulses for the calorimetric counter circuits of the serial communication line the flow meter setting power source There is also an adaptive filter eliminating fast changes of instantaneous flow rate resulting from pulsation of the liquid flowing through the piping actions of the flow control elements and other disturbing events from outside the piping In a flow meter of standard design this filter causes a delay of several seconds of the sensor output data with respect to the actual flow rate in the sensor However the electronic accessory of the ultrasonic flow meter can be modified so as to ensure a very fast response to the quickly changing mass flow data This modification finds application in systems where instantaneous flow rate needs be measured and monitored as fast as possible e g in heat exchanger and transfer stations where fast regulation processes take place ELIS PLZEN a s Lucni 15 P O BOX 126 304 26 Plzen Czech Republic tel 420 377 517 711 fax 420 377 517 722 Es 90234K a Design Assembly and Service Manual Page 9 of 28
25. er is received 3 3 5 Safety arrangements for commercial meters Commercial meters i e meters where the measured data are used to determine heat charges to be invoiced to the customer shall be provided with official marks and seals testifying to the correct meter setting and ensuring meter safety These marks and seals include System type plate located on the electronic accessory box with stick on labels bearing the official meter verification mark Two seals with imprints of official marks on the lids of ultrasonic probes of sensor UC 4 0 Two seals with imprints of official marks on the electronic accessory box MTU 2 0 preventing unauthorised opening and manipulation with the meter data or setting Upon installation of the complete system SONOTHERM SN30X0 at the required measuring location the duly authorised assembly staff shall secure the system against illegal handling by means of Two assembly seals with imprints of official marks on the terminal box lid of sensor UC 3 0 UC 4 0 Two assembly seals with imprints of official marks on the lids of the temperature sensor housings One assembly seal with imprint of official mark on the cover of the terminal box of the accessory electronic unit Pag F L Bal Be 53 G5 1 ta
26. essure of measured quid J16 40 o t Rated inner diameter of sensor UC 3 0 UC 4 0 DN see Section 4 1 Length of cables to sensor UC 3 0 UC 40 fm OS Placing of fow meter Feed piping F Retum piping R _ _ Communication via M Bus Yes Not o M Bus communic address range 1t0250 Yes No o o Display with illuminated background Yes No Stainless version ofsensor UC 3 0 Yes No o O Impulse input Yes No imp mumbero Communication via SIOX Bus Yes No Alarmsignal Yes Not Counter flanges packing Enclose detailed f Yes No specification and connecting parts and materials Flow meter verification in more than three operational modes within Yes No the measuring range Customer address Company identification number Bank contact Contact person Telephone Comment The response time of the accessory electronic unit if required in any particular application can be modified on agreement with the customer The standard meter configuration includes an adaptive filter Cross out if inapplicable ELIS PLZEN a s Lucni 15 P O BOX 126 304 26 Plzen Czech Republic tel 420 377 517 711 fax 420 377 517 722 Es 90234K a Design Assembly and Service Manual Page 28 of 28 Ultrasonic heat meter SONOTHERM SN30X0 ELIS PLZEN a s Manufacturer s address ELIS PLZEN a s Lucni 15 P O BOX 126 304 26 Pizen Czech Republic Tel 420 377 517 711 Fax 420
27. ges CSN 131160 0 or end G type threads The sensor is coated with KOMAXIT paint of hue RAL 7035 The sensor assembly further includes a terminal board housed in a cast aluminium box provided with RAL 7016 paint and mounted onto the sensor body across a heat insulating pad The sensor terminals can be accessed upon removal of a lid held in position by means of four M4 bolts with hexagonal socket heads A special valve embedded in the terminal box prevents water humidity from condensation inside the box Dimensional sketches Sensor with end flanges x oN Sey EN m kg DN 25 PN 16 ELIS PLZEN a s Lucni 15 P O BOX 126 304 26 Plzen Czech Republic tel 420 377 517 711 fax 420 377 517 722 Es 90234K a Design Assembly and Service Manual Page 8 of 28 Ultrasonic heat meter SONOTHERM SN30X0 Fa ag End thread m Ika DN 25 PN 16 3 3 3 Electronic accessory to flow meter The electronic accessory to the flow meter is housed in a plastic box with internal metal coating The calorimetric counter type MTU 2 00 is located in the same box The ultrasonic sensor is connected to its electronic accessory by means of two coaxial cables of adequate l
28. layed data and information The upper line symbol identifies the measured quantity displayed m C m h kW GJ 269BHHAA Display code This symbol flashes once for each flow meter impulse received Symbol stays lighted in the case of error Data and information measured transferred Accumulated heat energy Quantity of impulses at both additional impulse inputs optional solution on customer order Error code and duration of actual error Instantaneous power Instantaneous flow rate Input temperature Output temperature Temperature difference ELIS PLZEN a s Lucni 15 P O BOX 126 304 26 Plzen Czech Republic tel 420 377 517 711 fax 420 377 517 722 Es 90234K a Design Assembly and Service Manual Page 22 of 28 Ultrasonic heat meter SONOTHERM SN30X0 ELIS PLZEN a s Operational period Meter number Production series number Real time and function date Litres per impulse parameter Flow meter location feed or return piping Readings on the selected date when the following data are stored in the system memory calendar date accumulated energy accumulated flow volume measured by flow meter accumulated flow volume used in energy calculations accumulated number of impulses at impulse inputs optional meter configuration error code if any of error occurring at the time of data storage action Accumulated flow volume measured by flow meter Accumulated flow
29. mmended length of straight piping is 10 DN If there is a control valve or partially opened valve or a flap valve the recommended length of straight piping at the meter input side is 40 DN Required straight pipe sections for disturbances at the input side of the flow meter A straight pipe section of the length 3 DN is required for such disturbances at the output side Required straight pipe section for disturbances at the output side of the flow meter In the cases where complete flooding of the water pipe cross section cannot be guaranteed at all times the flow sensor can be located at a bottom pocket of the piping to ensure permanent flooding ELIS PLZEN a s Lucni 15 P O BOX 126 304 26 Plzen Czech Republic tel 420 377 517 711 fax 420 377 517 722 Es 90234K a Design Assembly and Service Manual Page 15 of 28 Ultrasonic heat meter SONOTHERM SN30X0 ELIS PLZEN a s Meter location at a bottom pocket in the piping If the meter is to be installed in a perpendicular position the flow direction shall be from the bottom upwards Flow meter install
30. ndicular position on a wall or support plate by means of an assembly frame The electrical connections between the electronic unit and the flow sensor UC 3 0 or UC 4 0 shall be done as described in Section 6 2 below The difference in lengths of the connecting coaxial cables shall not be greater than 0 1m ELIS PLZEN a s Lucni 15 P O BOX 126 304 26 Plzen Czech Republic tel 420 377 517 711 fax 420 377 517 722 Es 90234K a Design Assembly and Service Manual Page 20 of 28 kg Ultrasonic heat meter SONOTHERM SN30X0 ELIS PLZEN a s 6 2 Electrical connections Use the schematic drawing below to connect the MTU 2 00 electronic unit to the flow sensor probes Pay particular attention to the probe 1 and 2 positions with respect to the flow direction Schematic drawing of electrical connections between MTU 2 00 and associated devices uc 3 0 mu 2 00 UC 4 0 CALORIMETER TERMINAL BOARD PROBE 1 PROBE X2 g SERVICE UI NI PIN PITO PITDO PiSOG PISOO 1racoaas 699909 X4 CANON 9 RS 232 T1 thermometer in the feed piping higher temperature F T2 thermometer in the return piping lower temperature R Connector CANON 9 for RS 232 shall be used only for meter servicing purposes 6 3 Ultrasonic sensors UC 3 0 and UC 4 0 The ultrasonic flow sensor shall be mounted directly on the piping with the thermal insulation removed The connecting coaxial cables shall
31. not be attached to the hot water piping When installing the sensor into the piping make sure that the inner sensor space be completely filled with water at all times During measurement water shall not leave the sensor space nor air be allowed to enter it If the sensor is mounted in a vertical position the only permitted water flow direction is upwards Disregarding the meter installation principles listed in Section 5 may result in measurement errors 6 4 Mechanical connections Ultrasonic sensor shall be mounted in the piping using suitable counter flanges matching the sensor flanges 11 standard CSN 131160 0 The inner diameter of the counter flanges and the meter piping shall be identical with the inner diameter of the sensor The flanges shall be perpendicular to the meter piping axis The input and output piping shall be perfectly aligned without any protruding edges in contact areas The box housing the electronic accessory can be mounted onto a vertical support plate using four bolts of diameter 5 mm ELIS PLZEN a s Lucni 15 P O BOX 126 304 26 Plzen Czech Republic tel 420 377 517 711 fax 420 377 517 722 Es 90234K a Design Assembly and Service Manual Page 21 of 28 Ultrasonic heat meter SONOTHERM SN30X0 ELIS PLZEN a s 7 OPERATIONAL START AND METER CONTROL 7 1 Flow metering section As soon as the flow sensor has been installed in the piping and the electrical connections between the sensor and i
32. ns and rules for sensor UC 4 0 ooo eeccneeeeeeeeeenneeeeeeaeeeeeneeeeesaeeeseeaaeeeseneaeeesnaeeeeenaeeeeeeeaees 16 5 3 Data processing electronic UNM aanak Ap ARA NANA NN NANA 18 5 4 Resistance temperature sensor 1 iniinis ensins aNe idian iat ani EENS iir enia RERE an EEEE ENERE RERE 18 6 METER ASSEMBLY AND INSTALLATION RULES 0 ccccccceseceeeeeeeeeeeeneeeeeeeeeeeeeeeeeeeeesseeeeeesaeeeeeeeaseeeeeeeneeeeeaes 19 6 1 Data processing electronic unit MTU 2 00 oo eee cence ee enneeeeeee eter sees eeeaaeeeeeeeaeeeeaeeeeeeaaeeeseneaeeesieeeesenaeeeeeeaaees 19 6 2 Electrical connects aa GA NAAANINAG GIG GAN NG UN REAR A ARN id 20 6 3 Ultrasonic sensors UC 3 0 and UC 4 0 u mmmananananawaawaawaaananana ee cece ae ee ee eee NA AAAKANANAN ENNA ANAKAGAKEG ANA NAAANANAK0NNAnaKAsKKananANA 20 6 4 Mechanical connections aaaaa cece ee awan aan NG cece eeeeaae cece cece ccaaaaeeaeeeeeseseaaeaeeeeeeesecaaeaeeeeeeeesaeeeeeeeeeseenaeaeeeeeeeeee 20 7 OPERATIONAL START AND METER CONTROL la 21 7 1 Flow metering section aa GA GAGANA NAB ewes he eee 21 7 2 CalOnime tric SEC Naan NAG AB shoanncbe wad etek endsaacenedd ask aate aaa aE Eae AM LA AA ANA 21 7 3 Displayed data and intommati0N san Gama KGG AG Kan DANG BAL KAEDAD AIR NIAN ANAN 21 8 WARRANTY AND POST WARRANTY SERVICES u 10111011 10 anaanaa aaa 24 8 1 Wealttanly SOnviGeS ix 2a ak sawa NADA kaaa naa LNAG sa ha maa TATEA ELA moha KAGAD ba KAA AG SG EE 24 8 2 Post warranty services
33. on Arrangements should be made so that the power supply can only be disconnected by duly authorised staff The recommended type of power supply cable is CYKY 3 x 1 5mm outer diameter 10 5mm 5 4 Resistance temperature sensor The water temperature measurements can be made using thermometers including resistance temperature sensors Pt 100 or Pt 500 provided such thermometers have been type tested and approved for use in Czech Republic The thermometers used in commercial heat meters shall comply with the requirements in Code 505 1990 Coll be type approved metrologically verified by the National Metrological Centre and be supplied in pairs with the temperature reading differences over the whole range of measured temperatures not exceeding 0 05 C Each temperature sensor shall be connected by two wires Temperature sensors Pt 100 and Pt 500 Maximum length of connecting wires 2 5m for wire cross section 0 22mm2 5 0m for wire cross section 0 50mm 7 5m for wire cross section 0 75mm Maximum current loading 4UA RMS for sensor Pt 100 ELIS PLZEN a s Lucni 15 P O BOX 126 304 26 Plzen Czech Republic tel 420 377 517 711 fax 420 377 517 722 Es 90234K a Design Assembly and Service Manual Page 19 of 28 Ultrasonic heat meter SONOTHERM SN30X0 ELIS PLZEN a s 6 METER ASSEMBLY AND INSTALLATION RULES The meter assembly and installation work shall be done in strict observance of the directions and principles li
34. pplementary number to the meter number 5 The right character X in the display mode BX is a supplementary number to the production series number Error code There are available three error display modes in display code 15 actual error in display code 36 error existing at the time of data reading and storage in display code 46 error existing at the time of regular monthly reading ELIS PLZEN a s Lucni 15 P O BOX 126 304 26 Plzen Czech Republic tel 420 377 517 711 fax 420 377 517 722 Es 90234K a ELS Design Assembly and Service Manual Page 24 of 28 at Ka Ultrasonic heat meter SONOTHERM SN30X0 ELIS PLZEN a s Error codes Error code Type of error 0001 Output thermometer T2 open circuit 0002 Output thermometer T2 short circuit 0003 Errors 0001 0002 0004 Input thermometer T1 open circuit 0005 Errors 0001 0004 0006 Errors 0002 0004 0007 Errors 0001 0002 0004 0008 Input thermometer T1 short circuit 0009 Errors 0001 0008 000A Errors 0002 0008 000b Errors 0001 0002 0008 000c Errors 0004 0008 000d Errors 0001 0004 0008 000e Errors 0002 0004 0008 000F Errors 0001 0002 0004 0008 0010 Electronic unit error in EEPROM 0011 001F Combination of error 0010 and any above error s 0020 Electronic unit error in Inter Bus 0021 003F Combination of error 0020 and any above error s 004
35. precision requirements the calibration measurements can be performed at as many as 9 modes within the measuring range Important notice It is recommended that the calibration measurements and verification of the flow meter section of SONOTHERM SN30X0 at a certified testing centre be performed on a test stand in a continuous mode of operation 11 ORDERING In ordering a product the customer shall use the enclosed Product Order Form 12 PACKING The product packing shall ensure safe domestic and international transport taking into account the delivery conditions agreed to with the customer The packing shall comply with the internal standards of the manufacturer ELIS PLZEN a s ELIS PLZEN a s Lucni 15 P O BOX 126 304 26 Plzen Czech Republic tel 420 377 517 711 fax 420 377 517 722 Es 90234K a Design Assembly and Service Manual Page 26 of 28 Ultrasonic heat meter SONOTHERM SN30X0 ELIS PLZEN a s 13 PRODUCT ACCEPTANCE Upon delivery the goods shall be checked for completeness with respect to the delivery note and subject to visual inspection A typical scope of delivery includes a complete system SONOTHERM SN30X0 operation and maintenance manuals product compliance certificate and delivery note 14 WARRANTY CONDITIONS Unless agreed within the commercial contract otherwise the standard product warranty period is 12 months from the date of sale Within the warranty period all product defects due
36. s bie nen a thea Sas eee eee 8 3 3 4 Electronic accessory to calorimetef 2 2 2 cicececcccceeneeccnenenensanenenseneneesonsenensneansnanesenseuenensesaasenstaneeseueteneeennsensnens 9 3 3 5 Safety arrangements for commercial meters m aanawaanawaanawannaawananawanaananauwanaananaawasaanasanaanaananasanasannasannano 9 4 TECHNICAL PARAMETERS 22ANG 10 4 1 Rated inner diameters and limit flow rates for sensor UC 3 0 anna aanananaaaawaaaaanananasanaaaaanasanasananaaanassasasaana 10 4 2 Rated inner diameters and limit flow values for sensor UC 4 0 nanananwwa awan anannnnnasawaananaanasasananananassasaraana 11 4 3 Selection of correct sizes of flow sensors UC 3 0 and UC 4 0 0 cceccece cece cece ee eeeeee ae este ee eeeaaeaeeeeeeesesseeaeeeeeeeea 12 4 4 Technical specifications of flow metering Patt cccccceccceecceeeeeeeeeeae cece eeeeeeeeaeceeeeecesecaaeaeeeeeeeseneeeeeeeseeeeaeeeeess 12 45 fo ailaalvlaller Lilo qe aaa ana maana AA NANA NAA te errr ANA AA NAGANA EN AA AA 12 4 6 Basic technical characteristics Of the system oo cece eeeneeeeeereeeeeeneeeeeeaaeeeeeeeaeeeseaeeeeeseaaeeeseeeaesneeeseenaeeeeeeaaees 13 4 7 Optional calorimeter ACCESSOMCS nn aaa AN AA ALA a a AA Aa 13 5 METER APPLICATION DIRECTIONS AND RULES 11010111111 n 14 5 1 Application directions and rules for sensor UC 3 0 oo eeeeee cence ee eeneeeeeeaeeeeeneeeeeeaeeeeeeaeeeeeneeeeesnaeeeeenaeeeeeenaes 14 5 2 Application directio
37. sted in this Manual To prevent electric interference the power cables shall be led at least 25cm away from all signal cables associated with the flow meter i e the coaxial cables connecting sensors UC 3 0 or UC 4 0 the cables from temperature sensors M Bus interface signal cables and all input and output impulse signal cables Should any signal cables need be extended the connections shall be done by soldering and the soldered joints shall be protected from climatic or mechanical stresses by placing in a suitable installation box All cables shall be led outside the thermal insulation layers on the water piping The temperature sensors shall be connected by shielded conductors The shields shall be connected to the earth potential on one side only on the terminal board X10 of the electronic accessory Sensor must be grounded properly For grounding use a conductor with minimum cross section area 4 mm and connect the conductor to grounding bolts of evaluation electronic and flow sensor see figure here below Earthing connection between the MTU 2 00 electronic unit and the flow sensor 6 1 Data processing electronic unit MTU 2 00 The electronic unit shall be mounted in a perpe
38. t meter SONOTHERM SN30X0 ELIS PLZEN a s 4 2 Rated inner diameters and limit flow values for sensor UC 4 0 The following table shows the limit flow rate values for particular sensor sizes s MA ITA a ia a mm 25 8H 6 35 6 10 Qrin inin 0 05 C Ap ap bar 0 03 0 06 0 17 0 026 0 075 0 2 ds overloading maximum flow rate Ap continuous rated flow rate Amin minimum flow rate Qnecv minimum flow rate sensitivity threshold level The flow rate value upon reaching of which the flow meter starts to indicate and evaluate the measured data is normally set by the manufacturer at quecv On customer s request this threshold level can be set at any other value within the interval qnecy 0 025q Pressure losses of ultrasonic sensors UC 4 0 bar TI TTITTTI Por tT TTT k TG NA Tl lid Ligii 10 100 000 ELIS PLZEN a s Lucni 15 P O BOX 126 304 26 Plzen Czech Republic tel 420 377 517 711 fax 420 377 517 722 Es 90234K a Design Assembly and Service Manual Page 12 of 28 kg Ultrasonic heat meter SONOTHERM SN30X0 ELIS PLZEN a s 4 3 Selection of correct sizes of flow sensors UC 3 0 and UC 4 0 The size of the flow sensor shall be selected with respect to the parameters of the required measuring location First of all the value of the continuous flow rate in the piping should be considered and a sensor with the matching Qp selected
39. ts electronic unit have been made the system can be connected to power Within a short time the flow meter starts its measuring functions Connector X4 is reserved for calibration purposes parameter setting in production and servicing Ultrasonic sensor UC 3 0 or UC 4 0 is connected to the associated data processing unit by means of two coaxial cables see the respective schematic diagram If the system is used as a standard meter switch S3 located under the box lid provided with the official mark and one half of switch S2 are used in production and for metrological purposes The functions of the remaining half of switch S2 are described in the following table Switches S3 and S2 setting combinations Measurement mode 52 1 in position OFF 53 2 in position OFF 52 2 in position OFF S2 2 in position ON S3 2 in position OFF Programming mode 52 2 in position OFF 53 2 in position ON 7 2 Calorimetric section As soon as the temperature sensors have been installed and electrically connected the calorimeter functions can be tested using the respective display code table Upon delivery the calorimeter will be set at the transport mode where no measurements are performed and only the real time function is operative With the transport mode selected the display shows the word no in the upper left corner To select the operation mode depress the display push button and hold in the depressed position for about 5s 7 3 Disp

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