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MULTICAL® 302 - Technical Description

1. bo 3 bo on E o Zo E o E o User loop Loop 1 oa e Du a Sa oo oa odo oa vo ra ra ra oa ra 1 0 Heat energy E1 a 59 2 0 Cooling energy E3 2 2 3 0 Volume 2 3 2 2 3 4 0 Hour counter 3 4 3 3 4 5 0 T1 Inlet 4 5 4 4 5 6 0 T2 Outlet 5 6 5 5 6 7 0 T1 T2 At Cooling shown by 6 7 6 6 7 8 0 Flow 9 8 7 7 8 9 0 Power 10 9 8 8 9 10 0 Info Code 11 10 9 9 10 11 0 Customer number N 1 12 11 10 10 11 12 0 Customer number N 2 13 12 11 11 12 13 0 E8 m x T1 7 14 0 E9 m x T2 8 The display order of DDD 3xx and 6xx can either start with E1 E3 or E3 E1 After 4 minutes without activation of the button the meter reverts to energy reading in User loop There is no index number in User loop 8 3 TECH loop Tech loop is primarily for technicians and other persons who are interested in viewing further data Tech loop displays all legal registers other important registers as well as logged data see paragraph 7 8 for data loggers E Eh Tech loop comprises everything that the meter can display Tech loop is displayed when the front key has been pressed continuously for 7 sec The content of Tech loop is not configurable After a brief activation in Tech loop the display moves to the next main reading whereas two seconds activation in Tech loop makes the meter switch to sub reading After a brief activation in sub readin
2. Index number in Setup loop Loop 3 display 1 0 Customer number N 1 3 01 2 0 Customer number N 2 3 02 3 0 Date 3 03 4 0 Hour 3 04 5 0 Target date MM DD 3 05 6 0 Flow sensor in Inlet or Outlet code A 3 06 7 0 Measuring unit and resolution code B 3 07 8 0 M Bus primary address N 31 3 08 9 0 Average time of max P and Q 3 09 10 0 Ohc Can only be changed with country code6xx Other country codes show 180 C without changing option 3 10 11 0 Radio on or off 3 11 12 0 End setup 3 12 After 4 minutes without activation of the button the meter reverts to energy reading in User loop 52 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 8 4 1 Changing the installation position The setup of the meter s installation position can be changed from inlet meter to outlet meter and vice versa J SPENE 4 06 lide E ie eet Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 Setup mode When the meter is in operation Setup mode can be selected by breaking the seal and using the short circuit pen to make a brief short circuit which makes the reading shown to the left appear Do not forget to seal with a void label Installation position reading 3 06 Subsequently reading 3 06 is found by means of the button below the display Inlet If the meter is set to be a inlet meter the text inlet is displa
3. EiHighes 266 Cooling energy E3HighRes 267 Volume V1HighRes 239 T1 average inlet temperature Tiaverage Autolnt 229 T2 average outlet temperature T2average Autolnt 230 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 73 MULTICAL 302 14 3 Handling different test methods 14 3 1 1 Standing start stop Standing start stop is a method used for testing the flow sensor s accuracy During the test the meter must be mounted in a flow test stand The flow through the sensor is cut off Subsequently water flow is added for a certain period during which the water passing through the sensor is collected Having switched off the flow the volume of the collected water is compared to the volume counted by the meter In general standing start stop requires bigger test volume than flying start stop 14 3 1 2 Standing start stop via display reading Condition MULTICAL 302 must be in test mode see paragraph 14 1 1 The high resolution display readings are updated at 4 second intervals 14 3 1 3 Standing start stop using pulse outputs Condition MULTICAL 302 must be in test mode see paragraph 14 1 1 Verification pulses are connected as described in paragraph 14 2 1 above 14 3 1 4 Flying start stop Condition MULTICAL 302 must be in test mode see paragraph 14 1 1 Verification pulses are connected as described in paragraph 14 2 1 above Flying start stop is the most frequently used method for testi
4. 3 Click Connect Offline mode Connect Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 77 MULTICAL 302 METERTOOL HCW will respond by showing a picture of MULTICAL 302 with information about S W revision etc E METERTOOL Hew MULTICAL 302 Advanced n E MULTICAL 302 SW Revision 03 02 C2 CRC 21441 From the menu in the left side of the screen a number of different options are available depending on mode Basic Advanced 15 2 2 Configuration Basic Advanced Mode METERTOOL HCW MULTICAL 302 Advanced Meter details MULTICAL 302 Type No uos cr Temp connection Time date Serial No 6 Aene Communication on off erigi 67000288 o2 Ws Bo Mi j 40 Moni Configuration log Type No 502 m o as ao 231 Leave transport state Flow part A B DDD E F HF AM OMS Installation Datagram E No Ei EM Em ooo Country code Power supply Temp sensor Reset Peak Avg time minutes ECGCEG 01 01 MM dd Config No MBus address lo 0 Flow sensorin 3 Inlet Energy Unit 2 00000 01 GJ Display Code 210 Info codes 1 Dynamic info code Wired M Bus protocol Wireless M Bus Encryption Wireless M Bus protocol 01 Mode C1 year target data Customer label Read meter Program The configuration of MULTICAL 302 can be read without setting the meter to Setup Loop The program is self explanatory as to most coding numbers see text in combo boxes further details ca
5. The info event counter of a new meter will be 0 as transport state prevents counting during trans portation Registration in info Info code info in display hourly daily monthly and Enumeration of Info event yearly logger 1 No Yes Upon each Power On Reset 4 8 Yes Yes When Info 4 or 8 is set or removed 16 2 Yes Yes When Info is set and when Info is deleted 32 Yes Yes At wrong temperature difference 128 Yes Yes Battery voltage below 3 0 VDC 7 7 4 Transport state The meter leaves the factory in transport state i e the info codes are active in the display but not in the data logger This prevents info event from counting during transportation and non relevant data from appearing in the info logger The first time the meter enumerates the volume register after installation the info code automatically becomes active in the data logger after one hour If the meter has built in wM Bus communication the radio transmitter will be switched off when the meter is in transport state Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 45 MULTICAL 302 7 8 Data loggers MULTICAL 302 has a permanent memory EEPROM in which the results from various data loggers are saved The meter includes the following data loggers Data logging interval Data logging depth Logged value Yearly logger 15 years Counter register Monthly logger 24 months Counter register Daily
6. Date Date Date Date Heat energy El Heat energy El Cooling energy E3 Heat energy El Volume V1 Cooling energy E3 Last month or last year Monthly or yearly data depends on the HH configuration See paragraph 3 6 Config gt EFGHHMMM Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 65 MULTICAL 302 Mode T1 OMS Protocol according to EN13757 4 2013 and OMS Specification Volume 2 issue 3 0 1 Transmission interval of 900 sec Individual 128 bit AES encryption Data packets Mode T1 OMS Heat meter Cooling meter Heat cooling meter Header Header Header Device type Device type Device type Producer Id Producer Id Producer Id Serial number Serial number Serial number Version Version Version Status Status Status Current data Heat energy El Current data Cooling energy E3 Current data Heat energy El Heat energy E1 last month Volume V1 last month or Heat energy El last year Volume V1 last year Target date Cooling energy E3 last month Volume V1 last month or Cooling energy E3 last year Volume V1 last year Target date Volume V1 Volume V1 Cooling energy E3 Power Power Volume V1 Flow Flow Power T1 T1 Flow T2 T2 T1 Hour counter Hour counter T2 Date Date Hour counter Info code Info code Date Info code Target data Target data Target data Heat energy E1 last month Cooling energy E3 last month Volume V1 last month or Heat energy El last year Cooling ener
7. Symptom ptom Proposal for correction No display function Lu NENNT display Display is in sleep mode Press the front button in order to activate the display No energy accumulation e g MWh Read info in the display Check the error indicated by the info and volume m code see paragraph 7 8 If info 2 gt Check that the flow direction matches the arrow on the flow sensor If info 4 8 or 12 gt Check temperature sensors If defective replace the meter Accumulation of volume m but not Temperature sensors can be Replace the meter of energy e g MWh defective Check the temperature sensor cable for visible damage Heat cooling cutoff 0 has been Reconfigure 0 at a suitable value configured too low or configure 0 at 180 C thereby only relevant for meter type 6xx disconnecting the cutoff function Incorrect temperature reading Defective temperature sensor Check the installation Insufficient installation Replace the meter Temperature indication a little too Bad thermic sensor contact Make sure that the sensors have low or accumulation of energy e g been pushed to the bottom of the MWh slightly too low sensor pockets Heat dissipation Insulate sensor pockets Too short sensor pockets Replace by longer pockets 86 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 18 Disposal Kamstrup A S holds an environmental certification according to I
8. 302 In order to access test mode the TEST seal on the back of the meter must be carefully broken with a screwdriver and the contact points behind the seal short circuited with short circuit pen type 66 99 278 Subsequently test is displayed HU sEESE The meter remains in test mode until the front button is activated for 5 sec However a time out secures that the meter returns from test mode to normal mode after 9 hours When tests are finished the seal must be re established using a void label size 15 x 15 mm Kamstrup s seal no 2008 727 can be used The seal is important with a view to the meter s approval and to maintain its protection class Index number in Test loop Loop 4 Testloop Loop 4 display Main Sub 1 0 High resolution heat energy 1 1 Heat energy E1 4 01 01 2 0 High resolution cooling energy 4 02 2 1 Cooling energy E3 4 02 01 3 0 High resolution volume 4 03 34 Volume 4 03 01 4 0 T1 Inlet 4 04 5 0 T2 Outlet 4 05 6 0 Flow 4 06 After 9 hours the meter reverts to energy reading in User loop Register resolution of the high resolution registers are as follows 0000001 Wh and 00000 01 Test loop can only be displayed if the verification seal is broken and the switch activated The high resolution registers can only be reset in connection with a total reset See paragraph 15 for further information about METERTOOL
9. 302 uses time based integration which means that calculations of accumulated volume and energy are carried out at fixed time intervals independent of current water flow In normal mode the integration interval of MULTICAL 302 is 32 sec whereas the interval is 8 sec in fast mode Transport state In Transport state MULTICAL 302 runs through an integration sequence of 96 sec which minimizes the power consumption during transport Normal mode In normal mode MULTICAL 302 passes through an integration sequence of 32 sec During this sequence water flow is measured at 4 second intervals Inlet and outlet temperatures are measured in the middle of the sequence and at the end of the sequence energy and volume are calculated All display readings are updated at 32 second intervals Fast mode In fast mode MULTICAL 302 passes through an 8 second integration sequence During this sequence water flow is measured at 2 second intervals Inlet and outlet temperatures are measured in the middle of the sequence and at the end of the sequence energy and volume are calculated All display readings are updated at 8 second intervals Test mode In test mode MULTICAL 302 passes through a 4 second integration sequence During this sequence water flow is measured at half second intervals Inlet and outlet temperatures are measured in the middle of the sequence and at the end of the sequence energy and volume are calculated All disp
10. 77 15 3 wElow sensoradJ stment ue ER AA ei e n e ea S 81 15 4 LogView MULTICAL taa 82 4 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 16 Approvals reia 84 16 1 Tip approvals Si ax xaney EY 84 16 2 The Measuring Instruments D rect V ere erkeke eee ee keka eee ek K KAKE KK KAKA KAKA KAKA KHK A HAAA K KA 84 17 Troubleshooting uin Gee ee Io INI ee EIER o UNUM Ue NOE e e ee URINE 86 18 Disposal re Ere nen tee iota can e VA KU VO VA S HE ek iaaeao DE kO KELE n U TED C ek QESE e EREK R 87 19 Doc utlerite rise ras cawe eR u k ne eR a ew n kec Ve l cak a a nawe ba boze SERE l s io l Kan dak k 88 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 1 General description MULTICAL 302 is a static heat meter cooling meter or combined heat cooling meter based on the ultrasonic principle The meter is intended for energy measurement in almost all types of thermal installations where water is used as the energy conveying medium According to EN 1434 MULTICAL 302 can be designated a hybrid instrument also called a compact meter During production and initial verification in our factory the meter is treated as three separate units or sub assemblies flow sensor calculator and temperature sensor pair but after delivery the units must not be separated unless by an accredited laboratory
11. Flow sensor Ef 2 0 02 qp q 96 Ef 1 0 01 qp q 96 Calculator Ec 0 5 AO min AO 96 Ec 0 15 2 A 96 Sensor pair Et 0 5 3 AO AO 96 Et 0 4 4 AG 96 MULTICAL 302 q 1 5 m h 30K e E EC Et Ef EN E Ec Et Ef Typ q m h Diagram 1 Total typical accuracy of MULTICAL 302 compared to EN 1434 1 14 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 3 Type overview MULTICAL 302 can be ordered in various combinations as required by the customer First select the required hardware from the type overview Then select Config and Data to suit the application in question The meter is configured and ready for use from the factory It can however be reconfigured before installation see paragraph 8 4 Setup loop for further information 3 1 Type and configuration overview Type number 302 T xX X XX XX XXX Type number and serial number factory set unique serial no are written on the meter and cannot be changed after production CONFIG gt AB lt Inlet outlet Measuring unit Resolution Can be changed via the pushbutton while the meter is still in transport state Later the seal SETUP must be broken and the switch activated in order to change the configuration CONFIG gt DDD lt Display Change only possible via METERTOOL provided that the seal I SETUP
12. GB 05 2015 43 MULTICAL 302 7 7 2 Examples of displayed info codes Example 1 M EE 0005641 Flashing INFO If the information code exceeds 0 a flashing INFO will appear in the information field Example 2 LE INFO e Current information code Activating the push button the current information code is displayed Example 3 2D INFO ne cJ Info event counter shows how many times the information code has been changed only available in Tech loop Example 4 wA wn QIR HATINA E INFO LOG H Info logger If you press the push button once more data logger for information code is displayed only visible in Tech loop First the date of the latest change is shown next the information code set on this date is displayed In this case there has been a sensor error in temperature sensor T1 on 04 January 2013 The data logger saves the latest 50 changes The latest 36 changes can be displayed and the rest can be read by means of METERTOOL Furthermore the info code is saved in hourly daily monthly and yearly logger for diagnostic purposes 44 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 7 7 3 Info event counter a INFO E MULTICAL 302 Enumeration takes place every time the info code is changed the info code is added to the info event counter and data logged when it has remained present for minimum an hour
13. TI Tm k factor for T1 A 3 Flow Cold in outlet ui in inlet T2 T V1 and Ev T1 Ty Hot Green Cooling meter E3 V1 T2 T1 k Green TI To k factor for T2 A 4 Flow i in inlet sensor in Viand T1 To 72 Tm outlet pipe TA Hot 6 7 EMC conditions MULTICAL 302 has been designed and CE marked according to EN 1434 Class A corresponding to Electromagnetic environment Class E1 of the Measuring Instruments Directive and can thus be installed in both domestic and industrial environments All control cables must be drawn separately and not parallel to e g power cables or other cables with the risk of inducing electromagnetic interference There must be a distance of min 25 cm between signal cables and other installations 6 8 Climatic conditions MULTICAL 302 is designed for indoor installation in non condensing environments with ambient temperatures from 5 55 C but max 30 C for optimum battery lifetime However the flow sensor is specially protected against humidity and tolerates condensing environment Protection class IP65 for the calculator allows splashes of water but the calculator does not withstand permanent water humidity impact or submergence Protection class IP68 for the flow sensor allows permanent condensation and submergence Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 33 MULTICAL 302 7 Calculator functions 7 1 Measuring sequences MULTICAL
14. and vice versa after delivery 3 2 2 Configuration during setup of country code The last two characters of the type number are called the country code The code is used for setting up language of text on label e g class 2 or 3 dynamic range pressure stage PN 16 or PN 25 and indicates approval and verification marks Type 302 Country code XX Please contact Kamstrup for further details on available country codes Currently available country codes appear from internal document 5514 863 on Kamstrup s Intranet 3 2 3 Accessories 3026 655 A Wall fitting LEXAN 3412R black 6561 346 Holder for optical reading head 3130 362 Blind plug for temperature sensor in flow part Copper alloy brass CW614N 6556 491 R12 x M10 nipple Copper alloy brass CW614N 6556 512 R3 x M10 nipple Copper alloy brass CW614N 5920 257 Gt ball valve with M10x1 sensor socket 5920 271 G3 ball valve with M10x1 sensor socket 6557 302 G12 sensor pocket 35 mm Copper alloy brass CW614N 6699 099 Infra red optical reading head w USB plug 6699 102 Infra red optical reading head RS232 w D sub 9F 6699 304 Infra red optical reading head for NOWA 6699 016 Kamstrup NOWA KAS software 6699 724 METERTOOL for HCW 6699 725 METERTOOL LogView for MULTICAL 302 Note Ball valves with M10x1 socket type 6556 474 475 and 476 are not suitable for sensors with O ring seal as they are intended f
15. clock of the PC where METERTOOL is running It is only possible to write to a meter in Setup Loop 15 2 5 Communication on off Advanced Mode In this menu the M Bus radio transmitter can be switched on or off This is useful if the meter is being transported e g by air 15 2 6 Configuration log Advanced Mode Displays how many times the meter configuration has been changed since the first configuration The maximum number of configuration changes is 25 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 79 MULTICAL 302 15 2 7 Reset advanced mode This menu comprises three different types of reset 1 Normal Reset This reset does not zero any registers The data logger structure implemented in the meter permits logging at intervals hour day month year Furthermore info events and configuration events are logged In addition to the logs mentioned which are dedicated to reading a backup log which is used in case of voltage failure or reset is logged Normal Reset updates the backup log the meter restarts and restores the configuration parameters It may be necessary to perform a Normal Reset if the configuration parameters are changed as a Normal Reset restores the configuration parameters which means that the meter registers the changes Data logger reset This reset zeroes the meter s data protocols including yearly monthly daily and hourly logs as well as info code and configuration log St
16. district heating water and the average temperatures have been 95 C in inlet and 45 C in outlet E8 23750 and E9 11250 Example 2 The average temperatures are to be measured together with the yearly reading Therefore E8 and E9 are included in the yearly reading Date of volun E8 Average of inlet E9 Average of reading pipe outlet pipe 2012 06 01 534 26 m 48236 18654 2011 06 01 236 87 m 20123 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 7 4 Combined heat cooling metering MULTICAL 302 is available as heat meter meter type 2xx or 4xx cooling meter meter type 5xx or combined heat cooling meter meter type 3xx or 6xx Meter type Heat meter MID approved as heat meter Ope OFF EN Heat cooling meter MID approved as heat meter On OFF 3 Heat meter With national approval Oh OFF 4 Cooling meter E g PTB approved as cooling meter On OFF 5 Heat cooling meter Without approval marking Onc ON 6 Country code language on label etc Characters can be used XX If MULTICAL 302 has been supplied as a combined heat cooling meter meter type 3xx or 6xx it measures heat energy E1 at a positive temperature difference T1 gt T2 whereas it measures cooling energy E3 at a negative temperature difference T2 gt T1 7 4 1 Heat cooling cutoff function Meter type 6xx has a cutoff function which ensures that heat energy is only measured if the inlet temperature exceed
17. exceeding max permissible errors MULTICAL 302 has no functional limitations during the period when the meter operates above qp Please note however that high flow velocities may cause cavitation especially at low static pressure See paragraph 6 4 for further details on operating pressure Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 57 MULTICAL 302 10 Temperature sensors MULTICAL 302 comes with fixed soldered Pt500 temperature sensors according to EN 60751 DIN IEC 751 A Pt500 temperature sensor is a platinum sensor which has a nominal ohmic resistance of 500 000 Q at 0 00 C and 692 528 Q at 100 00 C All ohmic resistance values are laid down in the international standard IEC 751 applying to Pt100 temperature sensors The ohmic resistance values of Pt500 sensors are five times higher The table below shows resistance values of Pt500 sensors in O for each degree Celsius Pt500 cp h p P TR kpr ep Pt500 EN 60 751 2008 BEREH Table 5 58 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 10 1 Sensor types MULTICAL 302 comes with a 25 2 mm Pt500 sensor pair matched sensors with 1 5 m silicone cable This sensor type can be used as direct sensor using a coupling and an O ring and as pocket sensor to be mounted in a sensor pocket One temperature sensor is mounted in the flow sensor from the factory The other sensor ought to be mounted as direct sensor Alterna
18. i overensstemmelse med kravene i f lgende direktiver sont conforme s aux exigences de la des directives mit den Anforderungen der Richtlinie n komform ist sind s zgodne z wymaganiami nast puj cych dyrektyw es son conformes con los requerimientos de las siguintes directivas este sunt in conformitate cu cerintele urmatoarelor directive Measuring Instrument Directive 2004 22 EC Module D Notified Body Module D Certificate EMC Directive 2004 108 EC Force Certification A S LVD Directive 2006 95 EC EC Notified Body nr 0200 Zer PE Directive Pressure 97 23 EC Module A1 Park Alle 345 2605 Bro R amp TTE 1999 5 EC Denmark Fs PEREA RoHS II Directive 2011 65 EU wae Date 2015 05 18 Sign Lars Bo Hammer Quality Assurance Manager 5518 050 Rev AA1 Kamstrup A S DK8660 Skanderborg Denmark Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 85 MULTICAL 302 17 Troubleshooting MULTICAL 302 has been constructed with a view to quick and simple installation as well as long and reliable operation at the heat consumer Should you however experience an operating problem with the meter the table below can be used for troubleshooting The meter may only be opened and or repaired by an authorized laboratory or at Kamstrup A S Before sending us the meter to be repaired or checked we recommend that you go through the error options listed below in order to clarify the possible cause of the problem
19. is broken and the switch activated CONFIG gt EFGHAHMMM lt Other configurations see paragraph 3 6 Change only possible via METERTOOL provided that the seal I SETUP is broken and the switch activated CONFIG ABDDD EFGHHMMM is not written on the meter it can be read from the display DATA Can be changed via the pushbutton while the meter is still in transport state Later data can only be changed via METERTOOL provided that the seal I SETUP is broken and the switch activated Customer No Target date Average peak time Max flow and power O only active for country code 6xx Date time M Bus primary address Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 15 MULTICAL 302 3 2 Type number composition Type 302 Basic version Pt500 sensor input E Communication No communication 00 M Bus comes with 1 5 m factory mounted cable 20 M Bus comes with 2 0 m factory mounted cable 21 Wireless M Bus 868 MHz configurable mode C1 or T1 Bed Supply 6 year battery Normal Response meter E 12 year battery Normal Response meter 2 6 year battery Fast Response meter 3 Temperature sensors Pt500 95 2 mm temperature sensors with cable length 1 5 m and composite union 09 Pt500 g5 2 mm temperature sensors with cable length 1 5 m and brass union QF oh ap Connection la 0 6 GAB
20. logger 460 days Counter register Hourly logger 960 hours Counter register Info logger 50 Events 36 events can be displayed Info code and date Config logger 25 config changes New config and date Loggers are static ones Therefore register types and logging intervals cannot be changed When the last record has been written into the EEPROM the oldest one will be overwritten The meter only permits 25 reconfigurations which means that the config logger cannot be overwritten unless the seal is broken 7 8 1 Yearly monthly daily and hourly loggers The following registers are logged every year and every month on target date Furthermore the daily registers are logged at midnight and the hourly registers are logged every hour All the below registers are logged as counter registers Register type Description ee e leka ed Date YY MM DD hh Logging time year month day and hour El Heat energy E3 Cooling energy E8 E8 m x T1 inlet E9 E9 m x T2 outlet V Volume register e e INFO Information code h Hour counter h INFO Error hour counter DATE FOR MAX FLOW Date stamp for max flow during period MAX FLOW Value of max flow during period e DATE FOR MAX POWER Date stamp for max power during period e MAX POWER Value of max power during period 46 Kamstrup A S Technical Description 5512 1334 E1
21. master to slave is always sent in a data frame e Theresponse from the slave can either be sent in a data frame or as an application acknowledgement The data frame is based on the OSI model using the physical layer the data link layer and the application layer Bytes in each field 1 1 1 0 2 1 Field designation Start byte Destination CID Data CRC Stop byte address OSI layer Application layer Data link layer Physical layer The protocol is based on half duplex serial asynchronous communication with the setup 8 data bits no parity and 2 stop bits The data bit rate is 1200 or 2400 baud CRC16 is used in both request and response Data is transferred byte for byte in a binary data format in which the 8 data bits represent one byte of data Byte Stuffing is used to extend the value range Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 67 MULTICAL 302 13 1 1 MULTICAL 302 Register Ids ID Register Description 1003 Date Current date YYMMDD 1002 Clock Current hour hhmmss 99 InfoCode Info code register current 113 InfoEventCounter InfoEvent counter 1004 HourCounter Operating hour counter 60 Energy1 Energy register 1 Heat energy 63 Energy3 Energy register 3 Cooling energy 97 Energy8 Energy register 8 m x 11 110 Energy9 Energy
22. measuring system or installation a flashing info will appear in the display The Info field keeps flashing as long as the error exists no matter which reading you choose The Info field automatically disappears when the reason for the error has been removed However configuration for Manual reset of info codes static info codes is possible If Manual reset of info codes has been selected info codes will remain in the display until they have been manually reset 7 7 1 Info code types Info code Description Response time 0 No irregularities 1 Supply voltage has been interrupted 4 Temperature sensor T2 outside measuring range 32 sec 8 Temperature sensor T1 outside measuring range 32 sec 32 Temperature difference has wrong polarity lt 32 sec and 0 05 m 128 Supply voltage too low 10 sec 16 Flow sensor with weak signal or air 32 sec 2 Flow sensor with wrong flow direction 32 sec If more than one info code appear at a time the sum of info codes is displayed If e g both temperature sensors are outside measuring range info code 12 info codes 4 8 is displayed Info codes 4 and 8 are set when the temperature falls below 0 00 C or exceeds 155 00 C Info codes 4 and 8 are also set for short circuited and disconnected sensors Note If Info 4 or 8 the meter s energy calculation and volume accumulation stop Kamstrup A S Technical Description 5512 1334 E1
23. optical eye the circuit is not permanently switched on It is activated by pressing the key The circuit will remain on 8 minutes after the last activation of the button Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 69 MULTICAL 302 14 Test MULTICAL 302 can be tested as a complete energy meter or as a hybrid meter determined by the available equipment The test as a complete energy meter can be carried out without disassembling the meter except from the fact that the TEST seal must be broken see paragraph 14 1 1 The high resolution test registers can be read from the display via serial data reading or via high resolution pulses Before test as a hybrid meter MULTICAL 302 must be disassembled and the sensor pair must be soldered off Subsequently the calculator is tested separately by means of precision resistors and the meter s built in Auto integration Flow sensor and temperature sensors are tested separately too During test of the flow sensor it is important that the temperature sensor to be mounted in the flow sensor is installed If energy verification with separate temperature baths is used it is important that the medium in the flow sensor and the temperature bath in which the temperature sensor mounted in the flow sensor is placed have the same temperature In order to obtain quick test verification of MULTICAL 302 the meter has a test mode which repeats the measuring sequence every four
24. remove the plastic coupling from the sensor Subsequently mount a blind plug in the flow sensor Furthermore the blind plug is suitable for removing the O ring 62 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 11Power supply MULTICAL 302 is powered by 3 6 VDC from 1 or 2 built in batteries according to the type ordered Type 302 Supply 6 year battery Normal Response meter hae 12 year battery Normal Response meter 2 6 year battery Fast Response meter 11 1 Built in A cell lithium battery The A cell lithium battery is sufficient to power MULTICAL 302 for a 6 year period of operation A cell lithium batteries include 0 96 g lithium each and are thus not subject to transport restrictions o A ri Pi Ti T 11 2 Built in 2 x A cell lithium battery 2 x A cell lithium battery must be selected for MULTICAL 302 if a battery lifetime of 12 years is required The 2 x A cell lithium batteries contain 2 x 0 96 g lithium each and are thus not subject to transport restrictions O CUTIT pan Jn Asena D Note MULTICAL 302 cannot be mains supplied Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 63 MULTICAL 302 12 Communication MULTICAL 302 offers two different forms of communication namely wired M Bus or Wireless M Bus 12 1 Wired M Bus If the meter is supplied with built in wired M Bus M Bus protocol accordin
25. with 3 decimals B 6 compared to example 1 In outlet you receive a higher resolution lt 3 y E E 1 H Here the most significant digit has disappeared 8 Example 3 ES ES kWh without decimals B 3 This is an example of how energy reading E1 can 3 Y e g j 5 5 appear counted in kWh kWh Example 4 ES kWh with 1 decimal B 7 4 H 3 5 D Here the most significant digit has disappeared kwh compared to example 3 In outlet you receive a higher resolution Example 5 Ns E MWh with 3 decimals B 4 In principle this is the same resolution as in example j Li c 9 3 5 5 3 but energy is now counted in MWh MWh 8 5 TEST loop Test loop is intended for laboratories and others who are to verify the meter See paragraph 14 for further details on Test 54 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 9 Flow sensor 9 1 Ultrasound combined with piezo ceramics For more than 20 years ultrasonic measurement has proved the most long term stable measuring principle for heat measurement Experience with ultrasonic meters in operation as well as repeated reliability tests carried out in Kamstrup s accredited long term test equipment and at AGFW in Germany have documented the long term stability of ultrasonic meters 9 2 Principles The thickness of a piezoceramic element changes when exposed to an electric field voltage If the element is influenced mechanically it generates a co
26. 0 Hot brass casing 11 O ring for temperature sensor 12 Coupling for temperature sensor 13 Temperature sensor 5 2 mm Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 1 2 Seals 1 2 1 LOCK The meter s front cover and base are assembled by means of a locking system and the case cannot be separated without breaking the two seals marked S LOCK IMPORTANT if the seals have been broken the meter may no longer be used for billing Therefore the case may only be opened by an accredited laboratory with authorisation to reseal the meter after reverification The seals are gently broken using a The mechanical locks are released by carefully moving the screwdriver screwdriver towards the centre of the meter a Ss Close up illustration of locking function being released 8 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 When the two mechanical locks have been released remove the top cover from the base Reassembling the meter the seals must be re established using 15 x 15 mm void labels Note If the meter is used for billing this is a legal seal Alternatively Kamstrup s seal no 2008 727 can be used 1 2 2 Setup See paragraph 8 4 1 2 3 Test See paragraph 14 1 1 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 9 MULTICAL 302 2 Technical data 2 1 Approved meter data Approvals DK 0200 MI004 031 TS 2
27. 02 Txxxxx42xxX 1 5 3 0 15 6 E 5 0 0 09 G4B 165 302Txxxxx70xxx 15 30 15 6 3 50 007 G1B 130 302Txxxxx71xxx 1 5 30 J 15 J 6 EA GB 195 302Txxxxx72xxx 1 5 30 115 J 6 Eg 0077 GB J 220 302 DooxxA0 xxx 2 5 5 0 25 10 5 7 0 0 09 G1B 130 302TxxxxxA1 xxx 2 5 5 0 25 10 5 7 0 0 09 G1B 195 302TxxxxxA2xxx 2 5 5 0 25 10 5 7 0 0 09 G1B 220 Table 1 The overall lengths of the types in the grey fields include flow sensor and an extension piece which is included in the supply 10 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 2 2 Electrical data MULTICAL 302 Calculator data Typical accuracy Display Resolution Energy units Data logger Eeprom Clock calendar Data communication Wired M Bus wM Bus Power of temperature sensors Supply voltage EMC data Calculator E 0 15 2 A 96 Sensor pair E 0 4 4 40 96 LCD 7 8 digits with digit height 6 mm 9999 999 99999 99 999999 9 9999999 MWh kWh GJ 960 hours 460 days 24 months 15 years 50 Info events 25 config logs Clock calendar leap year compensation target date KMP protocol with CRC16 used for optical communication Protocol according to EN 13757 3 2013 300 and 2400 Baud communication speed with automatic baud rate detection Current consumption 1 unit load 1 5 mA 1 5 m fixed 2 wire cable Polarity independent Mode C1 protocol acco
28. 1334 E1 GB 05 2015 MULTICAL 302 6 2 Installation angle of MULTICAL 302 MULTICAL 302 can be installed horizontally vertically or at an angle Figure 1 Important MULTICAL 302 may be turned upwards to max 45 and downwards to max 90 compared to the pipe axis Figure 2 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 27 MULTICAL 302 Important The meter is most sensitive to air bubbles in the water when the plastic case points upwards Therefore this mounting position ought only to be used in installa tions with high operating pressure and automatic ventilation like e g direct connected district heating Figure 3 6 3 Straight inlet MULTICAL 302 requires neither straight inlet nor straight outlet in order to fulfil the Measuring Instruments Directive MID 2004 22 EC and EN 1434 2007 A straight inlet section will only be necessary in case of heavy flow disturbances before the meter We recommend you to follow the guidelines of CEN CR 13582 Optimal position can be obtained if you take the below mentioned installation methods into consideration A Recommended flow sensor position B Recommended flow sensor position C Unacceptable position due to risk of air build up D Acceptable position in closed systems E A flow sensor should not be placed immediately after a valve except for block valves which must be fully open when not used for blocking F A flow se
29. 302 35 MULTICAL 302 7 2 Energy calculation MULTICAL 302 calculates energy on the basis of the formula stated in EN 1434 1 2007 which uses the international temperature scale issued in 1990 ITS 90 and the pressure definition of 16 bar In a simplified form the energy calculation can be expressed as Energy V x AO x k The calculator always calculates energy in Wh and then converts the value to the selected measuring unit E Wh Vx AO x kx 1 000 E kWh E Wh 1 000 E MWh E Wh 1 000 000 E GJ E Wh 277 780 v is the added or simulated water volume in m Heat energy E1 AO inlet temperature outlet temperature AO is the measured temperature difference Cooling energy E3 AO outlet temperature inlet temperature Both in the display and during data reading each energy type is uniquely defined e g Heat energy E1 V1 T1 T2 k Cooling energy E3 V1 T2 T1 k ES El a E 00 3963 00080905 is the heat coefficient of water which is calculated according to the formula of EN 1434 1 2007 k identical with the energy formula of OIML R75 1 2002 Note In case of temperature sensor error AO is set at 0 00 K which causes the meter s energy calculation to stop A sensor error also stops volume accumulation Energy calculation and volume accumulation continue as soon as the error has been remedied Please note that the error will remain visible in the in
30. 7 02 001 and PTB TR K7 2 22 72 13 04 Standards EN 1434 2007 prEN 1434 2013 and PTB TR K7 2 EU directives Measuring Instruments Directive Low Voltage Directive Electro magnetic Compatibility Directive Pressurised equipment Directive Heat meter approval DK 0200 MI004 031 Temperature range 0 2 C 150 C The stated minimum temperatures are only Differential range AO 3 K 130 K related to the type approval The meter has no cut off for low temperature Cooling meter approval PTB TR K7 2 22 72 13 04 and thus measures down to 0 01 C and 0 01 K Temperature range 0 2 C 150 C Differential range AO 3 K 85 K Alternative temperature ranges 0 2 C 130 C AO 3 K 110 K 0 2 C 50 C A9 3 K 30 K Accuracy According to EN 1434 Temperature sensors Pt500 EN 60 751 2 wire hard wired connection EN 1434 designation Accuracy class 2 and 3 Environmental class A MID designation Mechanical environment Class M2 Electromagnetic environment Class E1 Closed location indoors 5 55 C mae bien uncial e Aha Pi a Length 100 1 250 1 Ap qp on meter qp qs q q Type number m h m h Uh l h l h m h bar mm 302 Txxxxx10xxx 0 6 1 2 6 3 3 0 0 02 G3AB 110 302Txxxxx11xxx 0 6 1 2 6 gt 3 3 0 0 02 G3AB 130 302TXxxxx12xxx 0 6 112 6 3 3 0 0 02 G4B 165 302Txxxxx40xxx 1 5 3 0 15 6 3 5 0 0 09 G34B 110 302Txxxxx41xxx 1 5 3 0 15 6 3 5 0 0 09 G3AB 130 3
31. 7851 37297 Wh kg Heat coefficient 1 04970 117450 kwh m3 K Energy 16 27032 1820478 kwh Unit kWh Resolution 5 digits The true energy at the most frequently used verification points is indicated in the table below Flow Outlet THESE TEPE AIK Wh 0 1 m Wh 0 1 m 42 40 2 230 11 230 29 43 40 3 345 02 345 43 53 50 3 343 62 344 11 50 40 10 1146 70 1151 55 70 50 20 2272 03 2295 86 80 60 20 2261 08 2287 57 160 40 120 12793 12 13988 44 160 20 140 14900 00 16390 83 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 75 MULTICAL 302 15 METERTOOL for HCW 15 1 Introduction The Kamstrup Software product METERTOOL HCW 66 99 724 is used for configuration of MULTICAL 302 as well as configuration of other Kamstrup heat cooling and water meters 15 1 1 System requirements As a minimum METERTOOL HCW requires Windows XP SP3 Windows 7 Home Premium SP1 or newer as well as Windows Internet Explorer 5 01 or newer Minimum 1 GB RAM Recommended 4 GB RAM 10 GB free HD space 20 GB free HD space Display resolution 1366 x 768 1920 x 1080 USB Printer installed Administrator rights to the PC are needed in order to install and use the programs They must be installed under the user login of the person who is to use the programs 15 1 2 Interface The following interfaces can be used Optical eye USB type 6699 099 Optical eye
32. COM port type 6699 102 Blue Tooth optical eye type 6699 005 15 1 3 Installation Check that system requirements are fulfilled Close other open programs before starting the installation Download the METERTOOL software from Kamstrup s FTP server and follow the program s directions through the installation During installation of the METERTOOL program the USB driver for the optical readout head is automatically installed if not already existing When the installation is completed the icon METERTOOL HCW will appear in the All Programs menu under Kamstrup METERTOOL or from the menu start for Windows XP and as a link on the desktop Double click on link or icon in order to start the program 76 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 15 2How to use METERTOOL HCW for MULTICAL 302 15 2 1 General information It is important to be familiar with the calculator s functions before starting programming The Kamstrup Software product METERTOOL HCW 66 99 724 is used for MULTICAL 302 Before running the program connect your optical readout head to your computer and place the head in the plastic holder on the calculator Start up METERTOOL HCW press the button on the calculator and click Connect in METERTOOL HCW Connect to meter ese Change mode 1 Place optical eye on meter 2 For MULTICAL 302 and 402 push any button on the meter to activate communication mode
33. GB 05 2015 MULTICAL 302 7 8 2 Info logger Every time the information code has remained changed for minimum one hour date and info code are logged Thus it is possible to data read the latest 50 changes of the information code as well as the date the change was made Register type Description Date YY MM DD Logging time year month and day Info Information code on above date E1 Heat energy E3 Cooling energy Clock hh mm ss Time If the info logger is read from the display the latest 36 changes including dates can be read too All of the 50 changes can be read by means of the PC program LogView 7 8 3 Config logger Every time config is changed date energy and the new config are logged Thus it is possible to data read the latest 25 config changes as well as the date the change was made The meter only permits 25 config changes unless the legal seal is broken Register type Description Date YY MM DD Year month and day of config change E1 and E3 Counter values just before reconfiguration Config ABDDDEFGHHMMM The new config number Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 47 MULTICAL 302 8 Display functions MULTICAL 302 is fitted with an easily readable LC display comprising 8 digits measuring units and an information field Energy and volume readings use 7 digits and corresponding measuring units whereas 8 digits are
34. If flow sensor calculator or sensor pair have been separated and the seals broken the meter is no longer valid for billing purposes Furthermore the factory guarantee no longer applies MULTICAL 302 employs ultrasonic measuring technique ASIC and microprocessor technology A single board construction comprises all calculating and flow measuring circuits which provides a compact and rational design and in addition exceptionally high measuring accuracy and reliability is obtained Volume is measured using bidirectional ultrasonic technique based on the transit time method proven a long term stable and accurate measuring principle Two ultrasonic transducers are used to send sound signals with as well as against the flow The ultrasonic signal travelling with the flow reaches the opposite transducer first The time difference between the two signals can be converted into flow velocity and thereby also volume The temperature sensor type is Pt500 according to DS EN 60751 Accurately matched Pt500 sensors measure the temperatures in inlet and outlet pipes MULTICAL 302 is supplied with a 25 2 mm Pt500 sensor pair One temperature sensor is mounted in the flow sensor from the factory and the other sensor is typically mounted as short direct sensor in e g a ball valve The accumulated heat energy and or cooling energy can be displayed in kWh MWh or GJ all in the form of seven significant digits and measuring unit The display has been specially de
35. Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 71 MULTICAL 302 14 2 Test connection During test either optical reading head with USB plug 66 99 099 for serial reading of high resolution energy and volume registers or Pulse Interface 66 99 143 with optical reading head and connection unit for high resolution pulse outputs is used Do not forget that the meter must be in Test mode 14 2 1 Verification pulses 3 6 30 VDC GND Pull Up Volume Volume Pulse GND Pull Up Energy Energy Pulse GND 72 co lt O H gt N When Pulse Interface type 66 99 143 is connected to power supply or battery the unit is placed on the meter and the meter is in test mode the following pulses are transmitted High resolution energy pulses 1 Wh pulse on terminals 7 and 8 High resolution volume pulses 10 ml pulse on terminals 4 and 5 Pulse Interface 66 99 143 technical data Supply voltage 3 6 30 VDC Current consumption lt 15 mA Pulse outputs lt 30 VDC lt 15 mA Pulse duration 3 9 ms Energy pulse 1 Wh pulse 1000 pulses kWh Volume pulse 10 ml pulse 100 pulses litre Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 14 2 2 Use of high resolution pulses High resolution energy and volume pulses can be connected to the test stand used for calibration of the meter or to Kamstrup s Pulse Tes
36. RY 110 ETR DN15 With extension to 130 mm 11 With extension to 165 mm 12 1 5 G3AB R12 110 40 DN15 With extension to 130 mm 41 With extension to 165 mm 42 1 5 G1B R34 130 70 DN20 With extension to 190 mm 71 With extension to 220 mm 72 235 G1B R34 130 AO DN20 With extension to 190 mm A1 With extension to 220 mm A2 Meter type Heat meter MID approved as heat meter Op OFF En Heat cooling meter MID approved as heat meter On OFF 3 Heat meter With national approval om OFF 4 Cooling meter E g PTB approved as cooling meter Om OFF 5 Heat cooling meter Without approval marking Ok ON 6 Country code language on label etc Letters can also be used XX Extension pieces if any are separately enclosed in the packing 16 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 3 2 1 Integration time Depending on selected type number MULTICAL 302 is from the factory configured for integration energy calculation every 32 seconds or every 8 seconds Supply 6 year battery Normal Response meter Bm 12 year battery Normal Response meter 2 6 year battery Fast Response meter 3 Among other things the meter s current consumption depends on the integration frequency of the meter A Fast Response meter integrates every 8 seconds and uses almost twice as much current as a Normal Response meter This means that the battery life is halved Normal Response cannot be changed to Fast Response
37. SO 14001 and as part of our environment policy we use materials which can be recovered environmentally correct to the greatest possible extent As from August 2005 Kamstrup s heat meters are marked according to EU Directive 2002 96 EEC and the standard EN 50419 The purpose of the marking is to inform our customers that the heat meter cannot be disposed of as ordinary waste e Disposal Kamstrup accept end of life MULTICAL 302 for environmentally correct disposal according to previous agreement The disposal arrangement is free of charge to the customer except for the cost of transportation to Kamstrup A S or the nearest disposal system The meters should be disassembled as described below and the separate parts handed in for approved destruction The batteries must not be exposed to mechanical impact and the lead in wires must not be short circuited during transport 2xA Lithium cells Lithium and thionyl chloride Approved deposit of lithium cells 2 x A cells 2 x 0 96 g lithium 1xA Lithium battery Lithium and thionyl chloride Approved deposit of lithium cells 1 x A cell 0 96 g lithium PCBs in MULTICAL 302 Coppered epoxy laminate PCB scrap for metal recovery remove LC display components soldered on LC display Glass and liquid crystals Approved processing of LC displays Cables for flow sensor and Copper with silicone mantle Cable recovery temperature sensors Transparent top cover PC 10 glass Plastic recycling or combus
38. TECH mode Max registration includes the following flow and power values with indication of date Type of registration Max this year since latest target date MM DD Max yearly data up to latest 15 years Max this month since latest target date DD Max monthly data up to latest 24 months All max values are calculated as the highest average of a number of current flow or power measurements The average period used for all calculations can be selected in the interval 1 1440 min in one minute leaps 1 440 min 24 hours Average period and target date must be stated in the order or reconfigured by means of METERTOOL Unless otherwise stated in the order average period will be set at 60 min and the target date applying to the selected delivery code will be used normally the first day of each month or first January every year At the end of a year or a month max values are saved in the data logger and the current max registers are reset according to selected target date and the meter s internal clock and calendar Date of this month s max power Value of this month s max power gO pare uod NE eo 1a 004 b33 Lines above and below the month indication show that monthly data are displayed Example of max power on a monthly basis Date of this year s max flow Value of this year s max flow aD pare UU ao 7 EL LEN Teza ll Uh Lines above and below the year indication show that
39. a la ke e er E eA ek Naar EEE aE y RO Heke ERE o ETETEN 30 6 5 Operating pressure of MULTICAL 302 oooccoccnuconncononnncononnnonncnnonanonnonn ono ereke eee k eke kre etes tentent tenente nnn 31 6 6 Mounting in inlet or outlet Di p 455451 a 5 1 eea a Nan dan REN d W he En nn nnn nosse eee sae wa Ki al n 32 6 7 EMG CONGIEIONS lad y n sets Kisk OS 33 6 8 ARA de Way kan a b KER e s Ye k n ra AVA RAN AVE NA Ku KOY Sad 33 7 Calculator function 8 5 4i5 c xxi 3a5o 44 s elan ka Eds keka ba ne wen Ne e Se n k ee ana Wee O J 7 1 Meas ring Sequehces ete O 34 7 2 Enerey calculatlonts eve cedes cr Died D Qni 36 7 3 ApplicatioriyDes eite terere Mieter ka kab Ve AWEK aee xwal b a ka we K RA eredi ioca KE Seke da ken s v da Ke R po 37 7 4 Combined heat cooling Metering ccscccccsssccccsssscccesssscccesseeccessceceessseecessseecessseeecessaeeecensueeeeeees 39 7 5 Max FIOWANA MAR POWs airera ee rna Sess aaces Eke vey PERA REA e MEY N GAN aves PE eee EXE ee aeuo epe ee UY 40 7 6 Temperature Measures ayan Gis ee et etae TS FURORE da V ek W w 0 05x4 ETE P NEUE arin 41 7 7 lunoni A 43 7 8 Data lOs ERE S MERMIL PO 46 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 3 MULTICAL 302 8 Display f
40. ans of an M Bus command For further details we refer to Technical description on M Bus for MULTICAL 302 64 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 12 2 Wireless M Bus MULTICAL 302 If the meter has built in wireless M Bus you can choose between Mode C1 or Mode T1 OMS Mode C1 is used in connection with Kamstrup s reading systems and for drive by meter reading in general Mode T1 OMS is used in connection with OMS based stationary networks The meter has an internal antenna Mode C1 Protocol according to EN 13757 4 2013 Transmission interval of 16 sec Individual 128 bit AES encryption Data packets Mode C1 Heat meter Heat meter Cooling meter Heat cooling meter HH 01 or 02 HH 11 or 12 Header Header Header Header Manufacturer Id Serial number Version Device type Hour counter Manufacturer Id Serial number Version Device type Hour counter Manufacturer Id Serial number Version Device type Hour counter Manufacturer Id Serial number Version Device type Hour counter Current data Current data Current data Current data Last month or last year Energy m T1 E8 Energy m T2 E9 Last month or last year Last month or last year Heat energy El Heat energy El Cooling energy E3 Heat energy El Volume V1 Info code Volume V1 Cooling energy E3 Power Power Power Info code Info code Info code Target data Target data Target data Target data
41. arrows fl 4 on the axes are used for manoeuvring in the graph area Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 83 MULTICAL 302 16 Approvals 16 1 Type approvals MULTICAL 302 is type approved according to MID on the basis of EN 1434 4 2007 and prEN 1434 4 2013 MULTICAL 302 has a national Danish cooling approval TS 27 02 001 MULTICAL 302 has a national German cooling approval based on PTB TR K7 2 16 2 The Measuring Instruments Directive MULTICAL 302 is available with CE marking according to MID 2004 22 EC The certificates have the following numbers Module B DK 0200 MI004 031 Module D DK 0200 MIQA 001 84 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 Declaration of Conformity x x Overensstemmelseserklaering k D claration de conformit Konformit tserkl rung Deklaracja Zgodnosci Declaraci n de conformidad Declaratie de conformitate We Kamstrup A S declare under our sole responsibility that the product s Vi Industrivej 28 Stilling erklaerer under eneansvar at produkt erne Nous DK 8660 Skanderborg d clarons sous notre responsabilit que le les produit s Wir Denmark erkl ren in alleiniger Verantwortung dass die Produkt e Mi otras Tel 45 89 93 10 00 deklarujemy z pe n odpowiedzialnosci e produkt y Noi Declaramos bajo responsabilidad propia que el los producto declaram pe proprie raspundere ca pro
42. atic info code reset If the meter has been configured for Manual reset of info codes the info code remains visible in the meter s display until a Static info code reset has been performed If the meter has been configured with Dynamic info codes however the info code disappears when the error has been corrected A Static info code reset does not reset the info code logger 15 2 8 Leave transport state Advanced Mode If the meter has not yet been commissioned and no water has passed through the flow sensor the meter is still in Transport state If needed the meter can be taken out of Transport state by clicking Yes to leave Transport state 15 2 9 Autointegration Advanced Mode Using this feature you will have to either connect two known METERTOOL HCW precision resistors to the temperature sensor inputs of the SN meter or use the existing connected temperature sensors and ee keep them at two known temperatures e g boiling water 100 C and icy water 0 C Thus you can simulate energy consumption and thereby verify the energy calculation of the meter 15 2 10 Settings By clicking the Settings tab the following can be changed Select language Dansk Deutsch Change language The program language can be changed between 6 different ies languages Danish German English French Polish and MMS Russian Polska Pyccknit COM port settings COM port settings The COM port can be selected man
43. d cooling system with one flow sensor Cooling energy E3 V1 T2 T1 K po intet or T1 outlet Flow sensor V1 is placed in inlet or outlet as T2 e MN selected during Config at v1 NV v 302 Txxxxxx5xx T1 Application C Closed heat cooling system with one flow sensor Heat energy E1 v1 T1 T2 k q n et or T2 Outlet Cooling energy E3 V1 T2 T1 k ue or T1 Outlet T2 DN Flow sensor V1 is placed in inlet or outlet as MT selected during Config V 302 Doooxx3xx 302 Doooxxx6xx Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 37 MULTICAL 302 7 3 2 E8 and E9 E8 and E9 are used as a basis for calculation of volume based average temperatures in inlet and outlet pipes respectively With every volume increase every 0 01 m or 0 001 m the registers are increased by the product of m x C which makes E8 and E9 suitable for calculation of volume based average temperature E8 and E9 can be used for average calculation during any period of time as long as the volume register is read at the same time as E8 and E9 E8 m xtF E9 m x tR E8 is increased by the product of m x T1 E9 is increased by the product of m x T2 a 4 ccc3B 0003034 EB Ea Resolution of E8 and E9 Volume resolution Resolution of E8 and E9 E8 and E9 depend on the resolution of volume m 38 0000 001 m m x C x 10 00000 01 m m x C Example 1 Within a year a heating installation has used 250 00 m
44. d that the seal is broken and the switch activated E F G HH MMM Info codes Dynamic Info codes are automatically deleted when the error has been remedied EH Static Info codes can only be deleted by means of METERTOOL 2 Wired M Bus protocol Standard frame format E wM Bus Encryption Encryption with common customer key 2 Encryption with individual key EN wM Bus protocol Mode C1 according to EN 13757 16 sec interval yearly target data s Mode C1 according to EN 13757 16 sec interval monthly target data 02 Mode C1 according to EN 13757 16 sec interval yearly target data incl E8 and E9 11 Mode C1 according to EN 13757 16 sec interval monthly target data incl E8 and E9 12 Mode T1 OMS 900 sec interval yearly target data 03 Mode T1 OMS 900 sec interval monthly target data 04 Customer label 2012 MMM 000 Monthly data is transmitted by default Change to yearly data possible by means of an M Bus command For further details we refer to the Technical description of M Bus for MULTICAL 302 3 6 1 Customer label In lower middle part of the meter an area of 15 x 38 mm is reserved for customer labels e g utility logo bar code serial number or similar according to customer requirements Unless otherwise specified in the order MULTICAL 302 will be supplied with customer label no 2012 000 which comprises the meter s customer number i Customer label me eau Please contact Kamstrup for c
45. ddress 185 MBusBotDispSecAddr Secondary M Bus address 154 CheckSum Software checksum 175 Infohour Error hour counter 13 1 2 Data protocol Utilities and other relevant companies who want to develop their own communication driver for the KMP protocol can order a demonstration program in C net based as well as a detailed protocol description in English language 68 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 13 2 Opticaleye The optical eye can be used for data communication via the optical interface The optical eye is placed on the front of the integrator just above the display as shown in the picture below Please note that the optical eye includes a very strong magnet which should be covered by a protection plate when not in use MULTICAL 302 does not include a metal plate which can retain the reading head s magnet Therefore the optical reading head must be held in place manually during brief data readings In connection with prolonged data readings reading of data loggers or if you want the optical reading head to be retained on the meter for other reasons you can use a transparent holder which is clicked onto the meter Different variants of the optical eye with USB plug and 9 pole D Sub plug appear from the list of accessories see paragraph 3 2 2 13 2 1 Power saving in connection with the optical eye In order to limit the power consumption of the circuit around the
46. dusul produsele Instrument E Classes Type Approval Ref Heat Meter MULTICAL 401 66 V and 66 W CI 2 3 M1 E1 DK 0200 MI004 001 Heat Meter MULTICAL 402 402 V 402 W 402 T DK 0200 MI004 013 Heat Meter MULTICAL 302 302 T CI 2 3 E1 M1 M2 DK 0200 MI004 031 Temperature PL and DS 65 00 0A B C D M1 DK 0200 MI004 002 Sensors 66 00 0F G 65 00 0L M N P 66 00 0Q3 4 65 56 4 Flow Sensor ULTRAFLOW 65 S R T CI 3 M1 El DK 0200 MI004 003 qp 0 6 400 m3 h Flow Sensor ULTRAFLOW 65 S R T CI 2 3 M1 E1 DK 0200 MI004 003 qp 0 6 40 m3 h and qp 150 400 m3 h Calculator MULTICAL 601 67 A B C D M1 E1 E2 DK 0200 MI004 004 MULTICAL 601 67 E M1 E1 E2 DK 0200 MI004 004 MULTICAL 602 602 A B C D M1 E1 E2 DK 0200 MI004 020 MULTICAL 612 6L2 F M1 E1 E2 DK 0200 MI004 020 SVM S6 S6 A B C D M1 E1 E2 DK 0200 MI004 020 MULTICAL 801 67 F G K L M1 E1 E2 DK 0200 MI004 009 Flow Sensor ULTRAFLOW 54 34 65 5 65 3 CI 2 3 DK 0200 MI004 008 qp 0 6 100 m3 h M1 E1 E2 qp 150 1000 m3 h M1 M2 E1 E2 ULTRAFLOW 54 M1 M2 E1 E2 DK 0200 MI004 033 Water Meter MULTICAL 21 CI 2 M1 E1 E2 DK 0200 MI001 015 MULTICAL 41 CI 2 M1 E1 DK 0200 MI001 003 MULTICAL 61 CI 2 M1 El B DK 0200 MI001 010 MULTICAL 62 CI 2 M1 E1 B DK 0200 MI001 016 flowlQTM 2101 CI 2 M1 E1 E2 DK 0200 MI001 015 flowlQTM 3100 CI 2 M1 E1 E2 DK 0200 MI001 017 are in conformity with the requirements of the following directives er
47. e mounted in the inlet pipe See the table in paragraph 6 5 for further information Lo JI D i Figure 7 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 59 MULTICAL 302 10 2 Coupling for direct sensor Slide the enclosed plastic coupling into place from the end of the sensor tube until you feel a click when the coupling has reached the first knurling The coupling must not be pushed further down than the first knurling No matter where the direct sensor is installed it is very important that you observe the tolerances stated in the drawing to the left If not the O ring may not provide correct sealing 10 2 1 Specification of coupling r a 7 Material PPS Max temp 150 C permanently T Pressure stage PN16 and PN25 60 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 10 3 Installation of direct sensor Use the O ring guide to slide the O ring into place and then push the sensor as faras it will go Fasten the plastic coupling manually The use of tools is not permitted The sensor is mounted like this from the factory Do not forget to finish the installation by sealing the sensor Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 61 MULTICAL 302 10 4 Blind plug for sensor socket If the sensors are to be mounted as pocket sensors dismount the temperature sensor which is mounted in the flow sensor and
48. er 2 09 9 1 Date of max yearly data 2 09 01 9 2 Max yearly data 2 09 02 9 3 Date of max monthly data 2 09 03 9 4 Max monthly data 2 09 04 10 0 Info Code 2 10 10 1 Info event counter 2 10 01 10 2 Info logger date 2 10 02 10 3 Info gt data 2 10 03 89196 11 0 Customer No 2 11 N 1 11 1 Customer No 2 11 01 N 2 11 2 Date 2 11 02 11 3 Hour 2 11 03 11 4 Target date 2 11 04 11 5 Serial number 2 11 05 N 3 11 6 Config 1 ABDDD 2 11 06 N 5 11 7 Config 2 EFGHHMMM 2 11 07 N 6 11 8 Software edition 2 11 08 N 10 11 9 Software checksum 2 11 09 N 11 11 10 Average time of max P and Q 2 11 10 11 11 6 2 11 11 11 12 Segment test 2 11 12 11 13 M Bus primary address 2 11 13 N 31 11 14 M Bus secondary address 2 11 14 N 32 After 4 minutes without activation of the button the meter reverts to energy reading in User loop 50 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 8 4 SETUP loop Setup loop comprises everything that can be changed in the meter Setup loop automatically disappears as an option when the meter has registered its first volume accumulation or if you exit via the EndSetup function Setup loop can be enabled again by breaking the seal and activating the switch In that case Setup is locked by EndSetup or automatically 4 min after the last activation of the button In Setup loop selected configurations of the meter can be changed Custo
49. ernal configuration overview See instructions no 5508 825 concerning update of configuration 22 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 4 Dimensioned sketches Calculator 38 E ES N Wall mounted calculator Wall fitting for calculator 47 24 8 MULTICAL 302 mounted on flow sensor All measurements in mm Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 23 MULTICAL 302 Flow sensor L 48 N cea o 1 La Thread L A B1 B2 B3 Approx weight kg G3 4B R12 110 12 35 35 40 0 7 G1B R3 130 22 38 38 50 0 8 L Thread L M A B1 B2 B3 Approx weight kg G3B R12 130 73 30 35 35 40 0 8 G3B R12 165 109 66 35 35 40 0 8 G1B R34 190 124 81 38 38 50 1 0 G1B R34 220 154 111 38 38 50 1 1 All measurements in mm The weight indication comprises the whole meter incl flow sensor calculator sensor pair and 2 x A batteries Enclosed accessories such as couplings nipples and sensor pockets if any as well as packing are not included in the weight indication 24 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 5 Pressure loss Pressure loss in a flow sensor is stated as max pressure loss at q According to EN 1434 maximum pressure must not exceed 0 25 bar The pressure loss in a sensor increases with the square of
50. ers are concerned appear from section 6 5 The code B indicates the measuring unit used for energy registration GJ kWh or MWh as well as the display resolution A B Flow sensor position Inlet 3 Outlet 4 Measuring unit and resolution 00000 01 GJ 00000 01 m 2 0000 001 GJ 0000 001 m 6 0000001 kWh 00000 01 m 3 000000 1 kWh 0000 001 m 7 0000 001 MWh 00000 01 m3 4 3 3 1 1 Dependency between measuring unit and resolution Number of decimals in display kWh MWh GJ m3 l h m3 h kW 0 6 0 3 2 2 0 1 1 5 0 3 2 2 0 1 2 5 0 3 2 2 0 1 0 6 1 3 3 0 1 1 5 1 3 3 0 1 2 5 1 3 3 0 1 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 19 MULTICAL 302 3 4 Config DDD Display coding Display code DDD indicates the active readings of each meter type in User Loop 1 is the first indication The display automatically returns to reading 1 after 4 minutes During normal operation the display readings of the selected DDD code which are connected to User loop are shown See examples of DDD codes below User loop Loop 1 E S E E y s 8 2 zo zog zo sd zd 8 8 28 88 8 1 0 Heat energy E1 EN ERN EN 2 0 Cooling energy E3 2 3 2 3 0 Volume 2 3 2 2 3 4 0 Hour counter 3 4 3 3 4 5 0 T1 Inlet 4 5 4 4 5 6 0 T2 Outlet 5 6 5 5 6 7 0 T1 T2 At Cooling shown by 6 7 6 6 7 80 Fl
51. fo event counter if static info codes have been selected until the error has been deleted via METERTOOL although the error has been corrected and the meter counts again Kamstrup can supply an energy calculator for check measurement Heat eneray calculator OML R75 1 2002 Te Exit Options About Input Flow position Return position Temparature 70 En E Pressure 16 bar Volume 1 m3 r Calculations Flow position Return position Specific volume 0220 1 0037 kg Specific enthalpy 81 7502 353333 whikg Heat coefficient 11354 11551 Kwh m3 K Energy 45 4160 46 2459 kwh Unit kWh Resolution 4 digits 36 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 7 3 Application types MULTICAL 302 operates with 4 different energy formulas E1 E3 E8 and E9 which are all calculated parallel with each integration no matter how the meter is configured E8 and E9 are used as basis for calculation of average temperatures in inlet and outlet pipes only whereas E1 and E3 are used for heat and cooling measurement respectively 7 3 1 E1 and E3 Energy types E1 and E3 are described by application examples below T1 Application A Closed heating system with one flow sensor Heat energy E1 V1 T1 T2 K q n et or T2 Outlet T2 Flow sensor V1 is placed in inlet or outlet as d selected during Config NV v 302 Txxxxxx2xx T1 Application B Close
52. g the display changes to the next sub reading Two seconds activation in sub reading makes the meter revert to main reading After five seconds activation in Tech loop the display reverts to User loop Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 49 MULTICAL 302 Tech loop Loop 2 Tech loop Loop 2 Index number in display Main Sub Record Start number number 1 0 Heat energy E1 1 1 Yearly date 2 01 01 1 2 Yearly data 2 01 02 08 01 02 1 3 Monthly date 2 01 03 14 Monthly data 2 01 04 OR PA 2 0 Cooling energy E3 2 02 2 1 Yearly date 2 02 01 2 2 Yearly data 2 02 02 0801 02 2 3 Monthly date 2 02 03 24 Monthly data 2 02 04 j k98 01 24 3 0 Volume 2 03 3 1 Yearly date 2 03 01 3 2 Yearly data 2 03 02 108 01 02 3 3 Monthly date 2 03 03 3 4 Monthly data 2 03 04 5989099 4 0 Hour counter 2 04 4 1 Error hour counter 2 04 01 5 0 T1 Inlet 2 05 5 1 Year to date average 2 05 01 5 2 Month to date average 2 05 02 6 0 T2 Outlet 2 06 6 1 Year to date average 2 06 01 6 2 Month to date average 2 06 02 7 0 T1 T2 At Cooling shown by 2 07 7 1 E8 m3 T1 2 07 01 7 2 E9 m3 T2 2 07 02 8 0 Flow 2 08 8 1 Date of max yearly data 2 08 01 8 2 Max yearly data 2 08 02 8 3 Date of max monthly data 2 08 03 8 4 Max monthly data 2 08 04 9 0 Pow
53. g to EN 13757 3 2013 is used Connection to the M Bus master is established via the fixed 1 5 m 2 wire cable Connection is independent of polarity and the M Bus interface is galvanically separated from the rest of the meter The communication speed with automatic baud rate detection is 300 or 2400 Baud Both primary and secondary addressing is supported Current consumption is 1 unit load 1 5 mA Reading intervals down to one hour do not influence the specified battery lifetime whereas reading intervals down to 5 minutes halves the battery lifetime We recommend a communication speed of 2400 Baud as the current consumption is higher at a communication speed of 300 Baud The following data can be read via M Bus M Bus data header Current data Target data Meter data M Bus ID Producer ID Version Device type Access counter Status Configuration Heat energy E1 Cooling energy E3 Energy m T1 E8 Energy m T2 E9 Volume V1 Hour counter Error hour counter T1 T2 T1 T2 Current power Max power current month Current flow Max flow current month Info code Date time Heat energy E1 Cooling energy E3 Energy m T1 E8 Energy m T2 E9 Volume V1 Max power Max flow Target date Serial number Customer number 1 Customer number 2 Config number 1 Config number 2 Meter type SW revision Monthly data is transmitted by default Change to yearly data possible by me
54. gy E3 last year Volume V1 last year Target date Monthly or yearly data depends on the HH configuration See paragraph 3 6 Config xEFGHHMMM 66 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 13 Data communication 13 1 MULTICAL 302 Data Protocol Internal data communication in MULTICAL 302 is based on the Kamstrup Meter Protocol KMP which provides a fast and flexible reading structure and also fulfils future requirements to data reliability The KMP protocol is used in all Kamstrup consumption meters launched from 2006 onwards The protocol is used for the optical eye The KMP protocol has been designed to handle point to point communication in a master slave system e g a bus system and is used for data reading of Kamstrup energy meters Software and parameter protection The meter s software is implemented in a Flash and cannot be changed neither deliberately nor by mistake Legal parameters cannot be changed via data communication Software conformity Software check sum based on CRC16 is available via data communication and in the display Integrity and authenticity of data All data parameters include type measuring unit scaling factor and CRC16 check sum Every produced meter includes a unique identification number Two different formats are used for communication between master and slave Either a data frame format or an application acknowledgement e Arequest from
55. iew HCW program LogView HCW 82 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 15 4 6 Application Double click on link or icon for LogView HCW in order to start the program and select the required data function Meter identification Click connect to meter Daily Data is used as an example Choice of data period from to LogView HCW MULTICAL 302 Activate Read to B S aad retrieve required ES data from the a meter sheet Choice of Graph s or table presenta Or load already tion of data from saved data values read loaded period To save the read Choice of required values into a file data registers Select the required registers by clicking on the box next to the register name To read out all data activate Select All to select all values When read out has been completed the read values can be saved by clicking Save We recommend to save the read outs securing that data can be reopened later for further analysis or documentation The values appear in graphs or list form by activating Graph Table toggle function In order to carry out a new data read out you just select a new period and new data registers If the formerly read values are not already saved you will be asked if you want to do so LogView HCW Tables can be exported direct to Windows Office Excel or printed To zoom in activate to zoom out activate on the axes The
56. kamstrup MULTICAL 302 2 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 Contents 1 Gen ial deScri DII OT eS 1 1 Mechanical COristr CtiOTn z uic iden riencia vvv reo va e e a ba O 7 1 2 Seals 3 5 eicit envie a EA o e n Edda 8 2 T chnical Qal s i42 4 44 55 LO 2 1 Approved m terdata sitesine RE 10 2 2 Electrical data d H l yekeke e ka EA eie eerte eiie ee Weda des He Ken eere toes 11 2 3 Mecharicaldata E E e Pkk HI nda yekek bon ee Recta EEE OT 12 2 4 IAEA NN 13 2 5 NON 14 3 Type OE it ce 3 1 Type and configuration overview L erkek eee eee k kake ee eke kk kk KK KAKA KA HAA K AKA KAKA HAA KAKA HHHH HAWKAR 15 3 2 Typ inumbBer composition Heo tote eee rte eR ee E e VE S n H NE UE HA VER ne EN 0940004 cabeceras 16 3 3 Config uc 19 3 4 Config DDD Display coding EE 20 3 5 ENSTe y oVervie Wisin dad mn 20 3 6 CONFIG SEEGHHMM Meis tarde 21 4 Dimensioned sketches mini za 5 Press re 0S5 aisi i HD b OR EROR a se AXI ARN NAAR INE oi Ei za 5 1 Calculation of pressure OSS iss eves eere ie ir e EUR EU ego E xeva n PIX OR ke On pese enge 25 6 rcr e ri ZO 6 1 Installation requirements s eit di adi 26 6 2 Installation angle of MULTICAL 302 4 J eene ereke keke k eke KE kre KA KEK AK tni HHHH KH AA HHHH HHG 27 6 3 SSTA aA E AE S E E E E E AA E AAE AE 28 6 4 Positiomofcalc latot 55y sl y
57. l socket ais 62 11 Powersupply i cesses s OS 11 1 Built in Acel lithium battery arose ooo sele v e rx nv ve e y ve su ean dey k ene Rekan oe SI e ur Seke de ev vage 63 11 2 Builtsin 2 x A cell lithium battery gt 3544yi ee eee iii Ve ey ve eu av ev ee xav eee ur eve iia Kekan dawn ekr vengo 63 12 Communication sin Sa s ese ke OF PAD T CODEC 64 12 2 Wireless M BUS eret rer keka r ett nnne ret en Fe kU e KI ERA sp petra n V K DE K ee We Peu da dousedsone severe 65 13 DIla COMMUNICALION per h ca a tenses 4 30 eha kaya OF 13 4 TMULTICAL 302 Data Protocol dit ehe M r D N i li Ver danen usd 67 13725 OpliCal6ye i kanc Helen dasn nun a Gal une e Vek ia 69 ZI M LO 14 1 Metermodes ee E E EE EEE E 70 aA AN KO e eli leji eli SR A OS E tete beste tt b a een EE E R RE aa 72 14 3 Handling different test methods ecccccccecccecececececececeeececeeeceeeceeeeeeeeeeseeseeeeeeseseseeeseeeseeeseceeeeeeeess 74 14 4 True energy calculation tete e DU aka Pe tei ava ka kan ka ek Vas ed W VE Va E ba bel KEWE ME WE Va voa vuv 75 15 METERTOOL for MULTICAL 302 ererseseee Heee enoe eee case ee eee eeececexeeeeseeeee 76 15 10 nala as yc td 76 15 2 How to use METERTOOL HCW for MULTICAL 302 sccssscsssssssessssessssesscoessecesssoeseseesteeesessesseeeeesoees
58. lay readings are updated at 4 second intervals If you press the front button for 5 seconds the display reverts to energy reading Alternatively the display reverts to energy reading after 9 hours in test mode Display on Press the front button to switch on the display If you leave the display at other readings than energy it automatically reverts to the primary energy indication after 4 minutes and after 4 more minutes without touching the button the display switches off Tolerance of time indications The timing of the measuring sequences can vary approx 3 96 in order to secure correct synchronisation with data communication 34 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 Transport state 96 sec Normal response 32 sec Fast response Display on 8 sec Test loop 4 sec FM FM FM FM FM FM FM FM iS TMC FM FM FM FM TMC FM FM FM FM TMC FM C FM FM TMC FM re FM e FM FM FM FM Abbreviation Description FM FM Flow Measurement TMC Temperature Measurement and Calculation C Calculations volume energy flow and power C Display loop Mode Measuring sequence Normal mode 32 sec Type number 302 x xx 1 and 2 Display off Fast mode 8 sec Type number 302 x xx 3 USER loop TECH loop Fast mode 8 sec SETUP loop TEST loop Test mode 4 sec Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL
59. measurement The effective power that is deposited in the sensor elements is thus very small and its influence on self heating of the temperature sensors is less than 1 1000 K Pt500 Measuring current 0 5 mA Measuring period 12 msec Peak power lt 200 uW RMS influence 0 5 uW fast mode RMS influence lt 0 08 uW normal mode Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 41 MULTICAL 302 7 6 2 Average temperatures MULTICAL 302 currently calculates the average temperatures of inlet and outlet T1 and T2 in C without decimals The background calculations E8 and E9 m x T1 and m x T2 are carried out with every volume increase every 0 01 m 3 or 0 001 m determined by the meter s configuration The display is updated every day at midnight The average temperatures are thus volume weighted and can be used directly for checking purposes Type of registration Average Yearly data Monthly data Year to date average since latest target date MM DD e e Month to date average since latest target date DD 42 Year to date average of T1 Current date with a stipulated line under year or month is displayed immediately BEFORE this reading Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 7 7 Info codes MULTICAL 302 constantly monitors a number of important functions If a serious error occurs in
60. mer number Date Time Target date Flow sensor position inlet outlet Energy unit Primary M Bus address Average peak time max min Heat cooling switching Radio on off Setup When delivered the meter is in transport state which means that display loop Setup is available Setup loop is selected by activating the button continuously for 9 sec J 5EEUP until SETUP is displayed The meter remains in Setup loop until the front button is pressed for 5 sec However a time out secures that the meter reverts from Setup mode to normal mode after 4 minutes Transport state ends when the meter has registered its first volume accumulation either 0 01 m 10 L or 0 001 m 1 L determined by the selected resolution When the meter has left transport state display loop Setup is no longer available unless the A SETUP seal is broken and the contact points behind the seal short circuited with short circuit pen type 66 99 278 After that Setup is displayed When setup is finished the seal must be re established using a void label size 15 x 15 mm Kamstrup s seal no 2008 727 can be used The seal is important with a view to the meter s approval and to maintaining its protection class Note The option Setup has been deselected in certain country codes The readings of Setup loop are listed below including index numbers Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 51 MULTICAL 302
61. n be found in the respective paragraphs of the technical description 78 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 15 2 3 Changing the configuration of MULTICAL 302 To program new values into the meter it must be in Setup Loop If the MULTICAL 302 has not yet been used it will be in Transport State and the programming can take place without further action METERTOOL for MULTICAL 302 will automatically set the meter to Setup Loop If the MULTICAL 302 has been in use prior to the programming the meter will have to be set to Setup loop before the programming can commence This can be done only by first breaking the A SETUP seal and short circuiting the contact points behind the seal with short circuit pen type 66 99 278 After that Setup is displayed Note This should be done only by an authorized installer and an approved seal has to be replaced after programming After shorting A SETUP seal the meter will remain in Setup loop for 4 minutes To extend this period the front button can be pressed which will extend the Setup loop time by another 4 minutes This can be done multiple times Figure 8 It is not possible to change the series number as this is a unique number which is allocated to the meter during production 15 2 4 Time date Basic Advanced Mode In this menu the built in clock in the meter can be read out and adjusted either manually or by setting the meter to the
62. ng the accuracy of flow sensors During the test the meter must be mounted in a flow test stand and there is constant water flow through the sensor Verification pulses as described in paragraph 14 2 1 can be directly used for the test stand if it is designed to control the start stop synchronisation Alternatively Pulse Tester type 66 99 279 can be used as external start stop pulse counter As the meter calculates volume and energy every four seconds in test mode see paragraph 14 1 1 the verification pulses will also be updated every four seconds as described in paragraph 14 2 1 It is important to allow for this time interval which means that the test duration from start to stop must be so long that the update time does not influence the measuring uncertainty to any very considerable extent 74 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 14 4 True energy calculation During test and verification the heat meter s energy calculation is compared to the true energy which is calculated according to the formula of EN 1434 1 2007 or OIML R75 2002 For control calculations Kamstrup can supply an energy calculator Heat energy calculator OIML R75 1 2002 lol xl Exit Options About Input Flow position Return position Temparature mon 20 000 E Pressure fe bar Volume or m3 M Calculations Flow position Return position Specific volume j1 12014 foot ikg Specific enthalpy 205 9
63. nsor should not be placed close to the inlet side of a pump G A flow sensor should not to be placed close to a two level double bend Figure 4 28 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 For general information concerning installation see CEN report DS CEN CR 13582 Heat meter installation Instructions in selection installation and use of heat meters Installation examples Figure 5 Threaded meter Mounting of couplings as well as temperature sensor mounted in MULTICAL 302 flow sensor Flow and temperature sensor can be installed in both PN16 and PN25 installations Enclosed couplings if any are only intended for PN16 Suitable PN25 couplings must be used for PN25 installations Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 29 MULTICAL 302 O Ring Figure 6 A blind plug which can be used if the temperature sensor is removed from the flow sensor and e g installed in a sensor pocket is available 6 4 Position of calculator If the flow sensor is mounted in a humid or condensing environment the calculator must be placed in a higher position than the flow sensor Y 30 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 6 5 Operating pressure of MULTICAL 302 In connection with installations it has proved practical to work with minimum the pressure mentioned below Nominal flow q Recommended back Max flo
64. or flat gaskets Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 17 MULTICAL 302 3 2 3 1 Couplings PN16 Article number Size Nipple Coupling 6561 323 DN15 RA GZ 6561 324 DN20 R4 G1 Material Copper alloy brass CW617N nipple Copper alloy brass CW602N coupling 3 2 3 2 Gaskets for couplings Article number Size coupling 3130 126 G3 3130 127 G1 Material Reinz AFM30 3 2 3 3 Extension pieces Article number Description Length mm Total length mm 6556 505 Extension piece G34B 20 130 6556 506 Extension piece G3 4B 55 165 6556 507 Extension piece G1B 60 190 6556 508 Extension piece G1B 90 220 Material Copper alloy brass CW614N 18 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 3 3 Config A B The legal parameters of the meter are determined by Config which can only be changed before installation when the meter is still in transport state or after breaking the seal SETUP and activating the switch The code A indicates installation of the flow sensor in inlet or outlet pipe As the density and specific heat capacity of water varies with temperature the calculator must compensate for the installation type in question Wrong configuration or installation will result in a measuring error Further details on installation of flow sensor in inlet and outlet as far as heat and cooling met
65. ow f 9 7 7 9 0 Power 10 9 8 8 9 10 0 Info Code 11 10 9 9 10 11 0 Customer number N 1 12 11 10 10 11 12 0 Customer number N 2 13 12 11 11 12 13 0 E8 m x T1 14 0 E9 m x T2 8 The display order of DDD 3xx and 6xx can either start with E1 E3 or E3 E1 DDD 210 310 410 510 610 are standard codes used by default A complete overview of all created DDD codes appears from Kamstrup document 5512 1256 The different loops are described in paragraph 8 3 5 Energy overview The above mentioned energy types E1 E3 E8 and E9 are calculated as follows Formula Example of application Condition country code 6xx only E1 V1 TI T2 kar ek V1 in inlet or outlet aa A we la must be higher Legal Display Data Log E3 V1 72 T1 wa energy V1 in inlet or outlet n dq a must be lower Legal Display Data Log TE SAR bpisplay beta kos aran ee e nie Osplay ata os Ois the temperature at which the meter shifts between heat and cooling measurement The typical value is 25 C but other values can be supplied as required If On is set at 180 C the function is disconnected e g to be used for purchase sale of heat See paragraph 7 4 for further information on heat cooling meters 20 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 3 6 CONFIG gt EFGHHMMM lt The configuration can only be changed via METERTOOL provide
66. r MULTICAL 302 15 4 1 Introduction and installation Regarding Introduction Interface and Installation see paragraph 15 1 Introduction METERTOOL HCW since it is similar for LogView HCW 15 4 2 General information LogView HCW ordering no 6699 725 is used for read out of logging data from MULTICAL 302 meter The read out data can be used for analysis and diagnostic test of the heating installation Data can be presented as table and graphics tables can be exported to Windows Office Excel For available logging data see paragraph 7 8 Data loggers LogView HCW MULTICAL 302 15 4 3 Log Select the required data function Daily Data Monthly Data and Yearly Data allow read out of data logged by MULTICAL 302 with optional data period and values EN Info Data allows read out of the latest 50 info events from li MULTICAL 302 reading includes date and info code of the info event egy Configuration log allows read out of all configuration changes max 25 that have been made to the meter 15 4 4 Help button Contact The contact button gives you the links to Kamstrup s website and mailbox Output This function shows the latest functions used in the program User manual Links to the user manual for the meter on Kamstrup s website 15 4 5 About button About lists the LogView HCW program version and revision numbers as well as all sub programs their type numbers and EP revision numbers for the entire LogV
67. rding to EN 13757 4 2013 Individual 128 bit AES encryption Transmission interval 16 sec Mode T1 OMS protocol according to EN13757 4 2013 and OMS Specification Volume 2 issue 3 0 1 Individual 128 bit AES encryption Transmission interval 15 min lt 0 5 pW RMS 3 6 VDC 0 1 VDC Fulfils EN 1434 class A MID class E1 Temperature measurement 2 Wire Pt500 T1 T2 AO T1 T2 AQ T2 T1 Inlet Outlet Heat metering Cooling metering temperature temperature Measuring range 0 00 155 00 C 0 00 155 00 C 0 01 155 00K 0 01 155 00K Battery 3 65 VDC 1 x A cell lithium 3 65 VDC 2 x A cell lithium Replacement interval 6 years 12 years Lithium content Transport class Outside the USA Within the USA Data modules frequent data communication and high ambient temperature reduce the replacement interval 0 96 g 2x0 96g Not subject to dangerous goods regulations Non restricted to transport Non assigned to Class 9 Belonging to the category of small primary lithium cells Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 11 MULTICAL 302 2 3 Mechanical data Environmental class Fulfils EN 1434 class A MID class E1 and class M2 Protection Ambient Environmental class class temperature Calculator IP65 Non condensing L z 5 55 9C 7 Indoors closed position Flow sensor and sensor pair IP68 Condensing Medium temperatures Heat meters 302 T 2 130 C At medium temperature
68. reation of new customer labels Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 21 MULTICAL 302 3 6 2 Configuration data In addition to Config gt EFGHHMMNK values must be entered in the below mentioned fields during production of MULTICAL 302 Unless otherwise specified in the order MULTICAL 302 will be supplied with Automatic and Default data as listed below Serial number S N and year year however only on the front Customer No Display No 1 8 digits MSD Display No 2 8 digits LSD Automatic To be stated in order Default Up to 16 digits In the order system limited to 11 digits due to PcBase compatibility Target date MM 1 12 and DD 1 28 Average time of max P and Q 1 1440 min 0 Heat cooling shift Only active with country code 6xx See paragraph 7 4 for functionality Date time M Bus primary addr 0 01 150 00 C Ohc 180 00 C switches off the function so that the meter can be used for purchase sale of heat GMT 12 0 hours 30 min in leaps Address 0 250 M Bus ID No used for secondary address wM Bus ID No S N 67 000 000 to 68 499 999 have been reserved for MC302 3 6 3 Other functions Creating an order in BOS you can choose fixed M Bus addr which means that all meters included in the order in question will be configured with the same M Bus address 3 6 4 Int
69. register 9 m x T2 68 Volume1 Volume register V1 86 Temp1 Current inlet temperature 87 Temp2 Current outlet temperature 89 Temp1 Temp2 Current differential temperature 74 Flow1 Current water flow 80 Power1 Current power 239 V1HighRes High resolution volume register for test purposes 266 E1HighRes High resolution heat energy register for test purposes 267 E3HighRes High resolution cooling energy register for test purposes 98 LogDaySetUp Target date reading date 146 AvrTemp1 y Year to date average of T1 147 AvrTemp2 y Year to date average of T2 149 AvrTemp1 m Month to date average of T1 150 AvrTemp2 m Month to date average of T2 229 AutolntT1Average T1 average of latest autointegration 230 AutolntT2Average T2 average of latest autointegration 123 MaxFlow1Date y Date of this year s max 124 MaxFlow1 y This year s max value 127 MaxPower1 Date y Date of this year s max 128 MaxPower1 y This year s max value 138 MaxFlow1Date m Date of this month s max 139 MaxFlow1 m This month s max value 142 MaxPower1Date m Date of this month s max 143 MaxPower1 m This month s max value 98 Xday Target date 153 ConfNo1 Config no ABDDD 168 ConfNo2 Config no EGHHMMM 1001 SerialNumber Serial no unique number of each meter 112 MeterNo high Customer number 8 most significant digits 1010 MeterNumber low Customer number 8 least significant digits 1005 MeterType Meter type 184 MBusBotDispPriAddr Primary M Bus a
70. rresponding electric charge Therefore the piezoceramic element can function as both transmitter and receiver Within ultrasonic flow measuring there are two main principles the transit time method and the Doppler method The Doppler method is based on the frequency change which occurs when sound is reflected by a moving particle This is very similar to the effect you experience when a car drives by The sound the frequency decreases as the car passes by 9 3 Transient time method The transient time method used in MULTICAL 302 utilizes the fact that it takes an ultrasonic signal sent in the opposite direction of the flow longer to travel from transmitter to receiver than a signal sent in the same direction as the flow The transient time difference of a flow sensor is very small nanoseconds Therefore the time difference is measured as a phase difference between the two 1 MHz sound signals in order to obtain the necessary accuracy PHASE DIFFERENCE Against the flow a d With the flow Ed SIGNAL Diagram 4 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 55 MULTICAL 302 In principle the flow is determined by measuring the flow velocity and multiplying it by the area of the measuring pipe Q FxA where Q is the flow F isthe flow velocity A Is the area of the measuring pipe The area and the length which the signal travels in the sensor are well known factors The length which
71. s a preprogrammed temperature 0 5 and correspondingly that cooling energy is only measured if the inlet temperature is lower than the preprogrammed temperature Onc is the temperature point used to shift between heat and cooling measurement 0 is configurable within temperature range 0 01 150 00 C Inlet temp T1 Heat energy El V1 T1 T2 Cooling energy E3 V1 T2 T1 AQ A0 T2 gt T1 0 T1 gt T2 If current T1 exceeds or equals Opa only heat energy can be measured If current T1 is lower than or equals pa only cooling energy can be measured In combined heat cooling meters 0 should correspond to the highest occurring inlet temperature in connection with cooling e g 25 C If the meter is to be used for purchase and sale of heat 0 is set at 180 00 C which cancels the 8 function If you want to switch the qhc function on or off compared to current condition it is necessary to perform a total programming of the meter by means of METERTOOL The change between heat and cooling measurement involves no hysteresis A0 0 00 K O is configured by means of METERTOOL see paragraph 15 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 39 MULTICAL 302 7 5 Max flow and max power MULTICAL 302 registers maximum flow values and maximum power values on a yearly as well as a monthly basis The registration can be read via data communication or via the display in
72. s below 15 C the calculator must be wall Cooling meters 302 T 2 130 C mounted in order to prevent condensation Heat cooling meters 302 T 2 130 C At medium temperatures above 90 C in the flow sensor the calculator must be wall mounted in order to prevent too high temperature especially in relation to display and battery lifetime Medium in flow sensor Water Storage temperature Pressure stage with thread Weight Flow sensor cable Temperature sensor cables 12 25 60 C drained flow sensor PN16 and PN25 From 0 7 to 1 1 kg depending on flow meter size and extension piece 1 2 m undemountable cable 1 5 m undemountable cables Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 2 4 Material Wetted parts Flow sensor cover Wall bracket Calculator case Cables MULTICAL 302 Flow sensor case Hot dezincification proof brass CW 602N Diaphragms Stainless steel W no 1 4404 O rings EPDM Measuring tube Thermoplastic PES 30 GF Reflectors Thermoplastic PES 3096 GF and stainless steel W no 1 4306 Thermoplastic PC 2096 GF Top Thermoplastic PC 1096 GF Base Thermoplastic ABS with TPE gaskets thermoplastic elastomer Flow sensor Temperature Silicone cable with inner Teflon insulation M Bus Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 13 MULTICAL 302 2 5 Accuracy Heat meter components MPE according to EN 1434 1 MULTICAL 302 typical accuracy
73. seconds i e eight times faster than in normal mode or twice as fast as in fast mode In test mode heat energy cooling energy and volume are displayed with a resolution which is higher than normal in order to enable a shorter test duration MULTICAL 302 uses more current in test mode but under normal circumstances where the meter is in test mode a few times during its lifetime this is without importance for the meter s battery lifetime 14 1 Meter modes The meter can operate in three different modes Normal Fast and Test mode as shown below The choice between normal and fast mode must be made when ordering the meter and this choice cannot be changed subsequently No matter whether the meter is supplied with normal mode or fast mode test mode see paragraph 14 1 1 can be selected Normal mode Fast mode Display on Test mode 0 25s FM 2s FM 1 25s FM 0 75s FM 1 25s FM 6s FM 1 75s FM 2s TMC 3 25s FM 2 25s FM 10s FM 4s TMC 2 75s FM 3 25s FM 14s FM 5 25s FM 3 75s FM 16s TMC 4s C 18s FM E 7 25s FM 22s FM 8s C 26s FM N 30s FM Abbreviation FM Flow Measurement 32s C TMC Temperature Measurement and Calculation C Calculations volume energy flow and power 70 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 14 1 1 Test mode 14 1 2 Test loop Test loop includes six different main readings and three different sub readings MULTICAL
74. signed to obtain long lifetime and sharp contrast in a wide temperature range Other reading options are accumulated water consumption operating hour counter current temperature measurements current flow and power readings Furthermore MULTICAL 302 can display loggings target day data error hour counter max flow max power information code and current date time MULTICAL 302 is powered by an internal A cell lithium battery with 6 years lifetime or by two A cells with 12 years lifetime MULTICAL 302 is available with communication for either wired M Bus and or Wireless M Bus In designing MULTICAL 302 great importance has been attached to user comfort and compact external measurements which makes it suitable for a wide range of applications This technical description has been written with a view to enabling operations managers meter installers consulting engineers and distributors to utilize all functions comprised in MULTICAL 302 Furthermore the description is targeted at laboratories performing tests and verification 6 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 1 1 Mechanical construction Description Front cover MULTICAL 302 Meter electronics Calculator base A cell battery Sealing cover for flow sensor Transducer assembly with cable S wy SJ N e Screws for top beam No Description 8 Meter tube assembly 9 O rings 1
75. sor you must take this into account especially if the sensor is used within the scope of EN 1434 between q and q and in case of heavy contractions of the pipe Steam pressure 80 85 90 95 100 105 110 115 120 125 130 C Diagram 3 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 31 MULTICAL 302 6 6 Mounting in inlet or outlet pipe To Tm Flow Sensor In one side of the meter three cables appear One cable is connected to the flow sensor The other two cables are temperature sensors connected to the meter If one temperature sensor is mounted in the flow sensor this sensor is called Tm and the other sensor is called To See examples below fig b E Contig number MULTICAL 302 is configured for flow sensor mounted in either inlet or outlet pipe The table below indicates installation conditions of Flow sensor position Heat meters Inlet 3 Cooling meters Kil ile D Heat cooling meters Formula k factor Config no t Co ld Installation pipe pipe T Tm Hot k factor for T1 A 3 Flow in inlet sensor in inlet o pipe Vi and TA T cold k ja T1 Ty Green Heat meter E1 V1 T1 T2 k Green TI To ot k factor for T2 A24 Flow i in outlet sensor in T2 Tm T1 T V1 and j outlet pipe 121 Cold 32 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302
76. t or outlet appears from the display Example of display reading if the meter is configured for flow EWI E n 3b b 3 sensor in inlet pipe ES Example of display reading if the meter is configured for flow i o U e 5 B sensor in outlet pipe In order to prevent cavitation the operating pressure at the flow sensor must be min 1 bar at qp and min 2 bar at qs This applies to temperatures up to approx 80 C See paragraph 6 4 for further information on operating pressure When the installation has been completed water flow can be turned on The valve on the inlet side of the flow sensor must be opened first The flow sensor must not be exposed to lower pressure than the ambient pressure vacuum Permissible operating conditions Ambient temperature 5 55 C indoors Max 30 C for optimum battery lifetime Temperature of medium 2 130 C with calculator mounted on a wall 15 90 C with calculator mounted on flow sensor System pressure 1 16 bar or 1 25 bar depending on the meter s marking Service When the meter has been mounted in the heating system neither welding nor freezing is allowed Dismount the meter from the heating system before starting such work In order to facilitate replacement of the meter closing valves should be mounted on both sides of the meter Under normal operating conditions no pipe strainer is required in front of the meter 26 Kamstrup A S Technical Description 5512
77. ter type 66 99 279 as shown in the drawing below Pulse Interface Type 66 99 143 3 5 30 VDC 2 GND Pulse Tester m 66 99 279 CV 10K 3 9 4 lo 5 41 CE mH 6 9 7 69 Cg 8 41 14 2 3 Auto integration The purpose of auto integration is to test the calculator s accuracy During auto integration the water flow through the meter must be cut off to make it possible to read the volume and energy counted during auto integration without the meter continuing normal counting in the registers afterwards At the beginning of an auto integration the meter receives a serial data command with test volume and number of integrations over which the meter is to distribute the volume In MULTICAL 302 the high resolution test registers cannot be separately reset so the test must be based on the increase in the high resolution registers during test After auto integration all volume and energy registers incl the high resolution test registers have been enumerated by the given volume and the calculated energies Furthermore the average of the temperatures measured during auto integration has been saved in two registers T1 average inlet temperature and T2 average outlet temperature For calculation of accuracy and precision the below mentioned registers can be read after auto integration Verification registers RID Heatenergy
78. the flow and can be stated as Q kvx Ap where Q volume flow rate m3 h kv volume flow rate at 1 bar pressure loss m3 h Ap pressure loss bar Nom diameter Ap q Q 0 25 bar men mm bar T X O NB EEE B 15 GB x 130 mm DN2O GiBx 130mm Dno 009 815 41 Table 2 Approximated pressure loss table Ap MULTICAL 302 0 1 Ap bar 0 01 0 1 1 10 Flow m h Diagram 2 Pressure loss graphs 5 1 Calculation of pressure loss The pressure loss at a given water flow can be calculated as Ap Q kv Example a qp 1 5 meter with a current flow of 0 5 m h Ap 0 5 5 0 01 bar Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 25 MULTICAL 302 6 Installation 6 1 Installation requirements Prior to installation of MULTICAL 302 the heating system should be flushed while a fitting piece replaces the meter Remove the adhesive wafers from the meter s inlet and outlet and mount the flow sensor with couplings New fibre gaskets in original quality must be used The flow sensor must be mounted with the arrow pointing in the flow direction If other couplings than the original ones from Kamstrup A S are used you must make sure that the threaded lengths of the couplings do not prevent proper tightening of the sealing surface Correct mounting of flow sensor in inle
79. the signal travels can be expressed by L T xV which can also be written as put V where L isthe measuring distance V isthe sound propagation velocity T isthetime AT Lx d Y Y In connection with ultrasonic flow sensors the velocities V and V can be stated as V C F and V C F respectively where C isthe velocity of sound in water Using the above formula you get 1 1 C F C F AT Lx which can also be written as C F C F AT Lx C F x C F U AT Lx As CPF F can be omitted and the formula reduced as follows p ATC Lx2 56 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 9 4 Signal paths q 0 6 1 5 2 5 m3 h Parallel measurement The sound path is parallel to the measuring pipe and the sound signal is sent from the transducers via reflectors 9 5 Flow limits In the meter s working range from min flow cutoff and far beyond qs there is a linear connection between the flow rate and the measured water flow In practice the highest possible water flow through the meter will be limited by the pressure in the system or possible cavitation due to too low back pressure If the flow is lower than min cutoff or negative MULTICAL 302 does not measure any flow According to EN 1434 the upper flow limit qs is the highest flow at which the flow sensor may operate for short periods of time lt 1h day lt 200h year without
80. tion PCB case and connecting base ABS with TPE gaskets Plastic recycling or combustion Wall bracket PC 20 glass Plastic recycling or combustion Meter case Hot dezincification proof brass CW Metal recovery 602N Transducer reflector 196 stainless steel Environmental cardboard Cardboard recycling Resy Please send any questions you may have regarding environmental matters to Kamstrup A S For the attention of Quality and environmental dept Fax 45 89 93 1001 info kamstrup com Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 87 MULTICAL 302 19 Documents MUTICALP302 Danish English German Russian 5512 1334 5512 1335 5512 1336 5810 1205 5810 1206 5810 1207 5512 1351 5512 1352 5512 1353 88 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 89
81. tively both sensors must be mounted in sensor pockets as symmetrical sensor installation gives the best measuring result If one of the temperature sensors is not to be mounted in the flow sensor it has to be mounted within a distance of max 12 cm from the outlet of the flow sensor instead The enclosed plastic coupling can be removed thus allowing the sensor to be used in a sensor pocket Please note that not all types of couplings can be removed Asymmetrical sensor installation one direct sensor and one pocket sensor is only advisable where national regulations allow this and never in systems with low differential temperature and or low water flow Note In Germany EichOrdnung EO 1988 stipulates that in new installations it is only permissible to use direct temperature sensors for heat meters with pipe diameter DN 25 or less Replacing heat meters in existing installations it can in some cases be permitted to use pocket sensors in small heat meters sensor type versus pocket type must however appear from Bestandsliste der verwendeten kurzen Tauchh lsen The temperature sensor which is mounted in the flow sensor from the factory has no marking on the sensor cable The other sensor which is marked with a green plastic ring must be mounted in the opposite pipe compared to the flow sensor E Example If the display shows that the flow sensor is to be p 1b J mounted in the outlet pipe the sensor with the green plastic ring must b
82. ually instead of the COM port for default setting which is automatic co Update program In this menu the METERTOOL program can be updated if a dju 80 newer revision is available on Kamstrup s FTP server Also JERE EA the driver for the USB optical read out head can be installed manually from this menu Server version Download size Update Cancel Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 Update database In this menu the METERTOOL database can be updated if a newer revision is available on Kamstrup s FTP server Backup amp Rest databases This button is not used with MULTICAL 302 Install USB driver This button installs the USB driver used or the optical read out head 15 2 11 Help button Contact The contact button gives you the links to Kamstrup s Website and mailbox Output This function shows the latest functions used in the program User manual Links to the user manual for the meter on Kamstrup s website 15 2 12 About button About lists the METERTOOL program version and revision numbers as well as all sub programs their type numbers and revision numbers for the entire METERTOOL HCW program 15 3 Flow sensor adjustment Flow sensor adjustment of MULTICAL 302 can only be done by an authorized laboratory using LabTool which is not available for ordinary users Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 81 MULTICAL 302 15 4 LogView HCW fo
83. unctions rre e d s ya eto Phat Ere rede ke dai aa aa dek Sa sU ala b x x k ke c wena a ke der s ka AO 8 1 Select display lO0p a 225 s x ra r eny codes seas RE Da k n d h VE su ace ces sds KAW here VE ke k ka keda KA r n x n b le vade Ren 48 8 2 U SER lO 0 D5 5345a 8 s3 se ce did da wa b kesan Ese corde L aw n k a e NN 49 8 3 TECHO Pci ee ERE rec eder esee Qr ere e is RA Lae 49 8 4 SETUP IOOD E A A eei bete Mert o esee dee dd caveats Ee Eee ote eee PE ERR ee extre loce yu EUER 51 8 5 jI ESA N elel s1 ee 54 FEE Ero Pee cc io DD 9 1 Ultrasound combined with piezo Ce ram CS M Ak E EuE kereke keke nennen eene KK KAKA KA KAKA AKA A HA KHK KAR 55 9 2 Prificipless 4 recette tores egere oe ie ee eae e eue b Seh d n ee eeu reed ae eese oU al ken rak a bebe Pest da Seye k ne kesi 55 9 3 Transient time method eers 45555548352 intere e t teret teet e tie eet eee deri rer 55 9 4 Signal A RN 57 9 5 FOW limits cial Cen mitte eite 57 10 Temperature SeInSOLs asco Sikce sali yakdae keles VE aH eR S a ae uS o ERE DO 10 1 Sensor types iere eno E KEWE ee REN a ONE Va LE K N HE Ken Kaka ven 9ya e Y ENTER ANO SIVA S 0e b ne ya ka EE EP AERA NR E We kes 59 10 2 Couplingtor direct Sensor dte rette estre iria 60 10 3 ln stallation AAA tt Ve REWA epo de onte HERR K u KU a Hwa ee yee Pen eed HEKA NET 61 10 4 Blind plug Tor Sen So
84. used to display e g the meter number If the push button has not been activated for 8 minutes the display switches off When the display is off three lines will appear in the right side of the display every 32 seconds in normal mode or every 8 seconds in fast mode In order to activate the display you press the push button Basically accumulated energy is displayed Activating the push button the display immediately switches to other readings The display automatically returns to energy reading four minutes after the latest activation of the push button and after four more minutes without activation of the push button the display switches off in order to save current The meter uses four different loops for four different user situations User loop Tech loop Setup loop and Test loop It is only possible to display one loop at a time 8 1 Select display loop By means of the push button on the front of the meter you can choose between four display loops No matter which display you have selected you can change to User loop by pressing the push button for 5 sec until 1 User is displayed and then releasing the button If the button is pressed for 7 sec instead 2 Tech is displayed and if you release the push button now you have access to Tech loop When you receive the meter it is in Transport State from which you access Setup loop depending on country code by pressing the push button for 9 seconds and then releasing the b
85. utton When the meter has registered its first volume accumulation either 0 01 m 10 L or 0 001 m 1 L determined by selected resolution the meter changes from Transport State to Normal State from which Setup loop cannot be accessed unless the seal at the back of the meter is broken and the installation switch activated There is only access to Test loop if the Test seal is broken and the Test switch activated DISPLAY OFF C ETT UP 2 E E C h PP er Bp Transport state Front key eng Press and hold the specified number of seconds P Activated on release Y Activated on click 48 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 From the three top loops the meter automatically reverts to energy heat energy or cooling energy depending on the meter s configuration 4 min after the last activation of the push button The individual display loops are described below 8 2 USER loop User loop is the primary loop which is accessible when the meter has been installed and is in normal operation The loop includes legal and most used readings User loop is primarily intended for the user of the meter See paragraph 3 4 for more details js E Rs es Display code DDD indicates the active readings of each meter type 1 is the first reading to which the display automatically reverts after 4 minutes Change to a different DDD code is only possible via METERTOOL
86. w q Recommended back pressure pressure m h m3 h The purpose of recommended back pressure is to avoid measuring errors as a result of cavitation or air in the water It is not necessarily cavitation in the sensor itself but also bubbles from cavitating pumps and regulating valves mounted before the sensor It can take some time until such bubbles have been dissolved in the water Furthermore water can include dissolved air The amount of air which can be dissolved in water depends on pressure and temperature This means that air bubbles can be formed due to falling pressure e g caused by a velocity rise in a contraction above the sensor The risk of these factors affecting accuracy is reduced by maintaining a fair pressure in the system In relation to above table the steam pressure at the current temperature must also be taken into consideration Table 3 applies to temperatures up to approx 80 C Furthermore it must be taken into account that the above mentioned pressure is the back pressure at the sensor and that the pressure is lower in a contraction than before one cones among other things This means that pressure measured elsewhere in the system may be different from the pressure atthe sensor This can be explained by combining the continuity equation and Bernoulli s equation The total energy from the flow will be the same at any cross section It can be reduced to P 1 pv constant When dimensioning a flow sen
87. yearly data are displayed Example of max flow on a yearly basis 40 Kamstrup A S Technical Description 5512 1334 E1 GB 05 2015 MULTICAL 302 7 6 Temperature measurement Inlet and outlet temperatures are measured by means of an accurately matched Pt500 sensor pair During each temperature measurement MULTICAL 302 sends measuring current through each sensor For Pt500 the current is approx 0 5 mA Two measurements are carried out in order to suppress mains voltage picked up via sensor cables 50 Hz or 60 Hz depending on country code Furthermore current measurements are made by internal reference resistors in order to secure optimum measuring stability The display presents inlet and outlet temperatures as well as temperature difference in the range 0 00 C to 155 00 C Inlet or outlet temperatures below O C are displayed as 0 00 C and temperatures above 155 C are displayed as 155 00 C When the temperature sensors are outside measuring range Info 8 inlet or Info 4 outlet is set At negative temperature difference inlet outlet the temperature difference is displayed with a negative sign and cooling energy is calculated provided that the meter has been configured for cooling metering Note When Info 4 or 8 the meter s energy calculation and volume accumulation stop 7 6 1 Measuring current and power Measuring current is only sent through the temperature sensors during the short duration of the temperature
88. yed In order to change the setting press the button for two seconds Setup is briefly displayed and then Inlet flashes Press the button once and Outlet is displayed If you want to save the setting press the button for two seconds until OK appears in the display Outlet If the meter is set to be a outlet meter the text Outlet is displayed In order to change the setting press the button for two seconds Setup is briefly displayed and then Outlet flashes Press the button once and Inlet is displayed If you want to save the setting press the button for two seconds until OK appears in the display 53 MULTICAL 302 8 4 2 Changing the energy unit The energy unit can be changed In order to do so you follow the example downstairs but instead of reading 3 06 you find reading 3 07 3 01 If you change the energy unit setting in Setup loop you must be aware that the change can influence the most significant digits of the display If for instance you change from GJ with 2 decimals to GJ with 3 decimals the most significant digit will disappear The same applies if you change from kWh without decimals to kWh with 1 decimal And conversely the least significant digit disappears if e g you change from kWh with 1 decimal to kWh without decimals See examples below Example 1 E GJ with 2 decimals B 2 This is an example of how the energy reading E1 can e J 56 appear counted in GJ e Example 2 E GJ

MULTICAL® 302 - Technical Description

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MULTICAL&reg; 302 - Technical Description

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MULTICAL® 302 - Technical Description