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1 CALEC MB Архангельск (882) Астана +7(772) Белгород (4722) Брянск (4832) Владивосток (423) Волгоград (844) Вологда (872) Воронеж (473) Екатеринбург (343) Иваново (4932) Ижевск (342) Казань (843) Калининград (402) Калуга (4842) Кемерово (3842) Киров (8332) Краснодар (86) Красноярск (39) Курск (472) Липецк (4742) Магнитогорск (359) Москва (495) Мурманск (852) Набережные Челны (8552) Нижний Новгород (83) Новокузнецк (3843) Новосибирск (383) Орел (4862) Оренбург (3532) Пенза (842) Пермь (342) Ростов-на-Дону (863) Рязань (492) Самара (846) Санкт-Петербург (82) Саратов (845) Смоленск (482) Сочи (862) Ставрополь (8652) Тверь (4822) Томск (3822) Тула (4872) Тюмень (3452) Ульяновск (8422) Уфа (347) Челябинск (35) Череповец (8202) Ярославль (4852) сайт: почта:

2 . Advantage application. Application A a veratile reliable eter ditrict local heating, with ueful additional feature pecial application tariff. Thank to the CALEC MB calculator there i virtually no liit to the cobination poible with different type flow eter teperature enor. For coercial indutrial ue, to onitor yte in energy intallation. For the iddle upper perance range in heat production ditribution. Whenever there are deing requireent eauring accuracy tability. A a tranitter heat data reote proceing via the M-Bu counication channel. In inpection, teting calibration yte..2 Advantage The ucceor to the well-proven CALEC MCL MCP reote heateter CALEC MB coplie 00% with the EN 434 heat eter tard EMC directive 89/336/EEC (CE certification). Accuracy long-ter tability thank to tate--the-art electronic high quality engineering. Efficient icroproceor etering yte with integral data backup by EEPROM. Copact odular deign For wall or electrical control panel ounting. Copatible with all coercially available eter board. Output option can be intalled at a later tage without daaging the calibration eal. Illuinated text diplay Since the 8-digit izer energy flow volue give an enorou etering range, only a few rated capacitie are required. For precie identification eauring point, the unit ha an electronic text diplay which can alo be read by the M-Bu protocol (40-character ASCII tring). Data counication Fat reading by h-held terinal or PC via the built-in infrared interface. Reote reading via the M-Bu interface according to EN at any tie. Function paraeter which are not relevant to calibration can alo be newly entered or odified via the M-Bu interface at a later tage. Thee can alo be partially protected againt anipulation. Datalogger Energy eter reading can be tored under two freely prograable billing, e.g. uer tie / winter tie billing, or an interediate reading. A built-in logger function record energy flow volue reading, flow rate theral power axia 5 different. Thee are prograable to day, 2 day, 7 day, /2 onth or onth, with optional integration tie coputing theral power flow axia. In order to guarantee that the -dependent datalogger function correctly, we recoend that the optional realtie clock (2RWC) i intalled. Any error which occur are tored, together with the duration the error (in econd). Thi ean that their ignificance in relation to eaureent can be evaluated retroactively. The eter i powered fro the ain need no battery. In cae power failure, data are aved in an EEPROM. Data ecurity i thu equivalent to electronic roller counter type eter. With the realtie clock option, tie will continue functioning even after a power failure. Thi option can be retritted at any tie. The clock ha a tby battery which guarantee 0-year operation. M-Bu interface according to EN 434 (M-Bu = eter bu) The tard data counication interface heat eter allow reote reading, control calibration via the counication interface. Siultaneou reote reading other type eter, uch a ga, water or electricity i alo poible with M-Bu. VD 3-6 E

3 2. Heat etering yte deign A heat etering yte coprie a flow eter, two paired teperature enor the etering unit. Even the bet etering unit cannot copenate error in enor dienioning intallation. It i theree trongly recoended that great care i taken with the election pecification the etering point. For detailed yte layout ination, pleae refer to our general intallation guideline to heat eter tard EN 434 Part 6. Our pecialit are at your dipoal yte intallation planning, thu aving you the unneceary outlay expene ubequent alteration. 2. Flow etering A well a the uual flow eter with a pule output, option 2AIN alo ake it poible to ue flow eter with an analogue output uch a EM eter or orifice plate. When flow eter with a pule output are ued, the pule value indicate the volue to which one pule correpond. Thi value hould be elected a low a poible, in the interet high reolution continuou eaureent. The point intallation i crucial iportance ince the volue-toa converion i pered at the teperature pecified under "intallation location". Becaue flow/return definition can lead to iunderting, above all in refrigeration yte, the ter "hot ide" "cold ide" are ued greater clarity. In heating yte, exaple, the return flow loop i the cold ide the heat circuit. Flow eter hould preferably be intalled in piping ection near roo teperature. Thi ake greater accuracy extend ervice life. 2.2 Teperature eaureent For teperature eaureent, the CALEC MB ue paired platinu teperature enor (Pt00 to DIN IEC 75). When pairing enor, the two ot iilar one fro a large nuber are choen to one pair; the axiu divergence within the pair ut not exceed 0.05 C. In conity with EN 434-2, enor can only be paired if they have the ae type intallation the ae length. Careful attention ut alo be paid to enor intallation wiring. Thee are conidered in ection 3.3 below in the heat eter tard EN 434 Part Heat calculator Heat calculator are aintenance-free except recalibration after expiry the certified. They ut be eaily acceible reading, protected againt heat electroagnetic interference. Heat calculator ut be clearly arked together with their flow eter teperature enor pair. Thi i extreely iportant at ultiple etering point where confuion can arie. 2.4 Metering concept Heat eter ut be intalled according to a yteatic concept, depending on whether individual conuer are to be etered or an overall conuption balance i required. In the latter cae, all part - conuer ut be etered - extrapolation unetered coponent a a difference in the ain eaureent i not adiible ince it uually caue ignificant error. 2.5 Intallation recoendation The intallation coiioning heat eter i a pecialit tak, deing the greatet care expertie. Apart fro the recoendation et out here, copliance i alo required with EN 434 Part 6 guideline the product operating intruction. Preciion requireent can only be et if the eter i intalled correctly. When eter are being intalled the firt tie, it i already worth reebering that, reaon aintenance or verification, all unit copriing a yte will need exchanging at a future.

4 Optodata ( 4.8) 230 V AC ( 6.3) or 5 V AC ( 6.4) Grp. Flow eaureent (Flow enor) - Meauring principle - Mounting place (Hot/Cold ide) - Mounting poition - Flow range - Pule output - Pule value Grp.2 (Kap.4.3) Th Tc CALEC MB (Kap.4.3) EM Ultraonic other Heat eter intallation overview Intallation - Noinal power - Flow range - Teperature range - Initial verification - Type approved range Heat calculator - Power range - Diplay unit - Option Function Relay output Analogue output - M-Bu data interface - Counication language Flow - in heating yte = hot ide - in cooling yte = cold ide Teperature eaureent - Senor type - Mounting type Heat carrier Return - in heating yte = cold ide - in cooling yte = hot ide AM

5 3. CALEC MB heat calculator 3. Meauring principle Theral energy i calculated fro the flow rate the heat carrier, taking into account it phyical characteritic (pecific heat denity), the difference between the ward return flow teperature. 3.2 Flow input Flow input IN (terinal 0/) allow connection echanical or electronical paive/active puler, a an option, current ignal 0/ A. Mechanical puler (uch a reed witche) ut be fitted with debouncing filter to prevent double counting. The debounce filter i intalled during factory prograing ut theree be pecified when placing an order. It liit input frequencie to about 20 Hz, i.e. it require a iniu voluetric pule interval tie 25. Paive puler, open collector witche NAMUR tranitter (according to DIN 9234) are powered with 8.0 V, uing a current up to 8 A fro the eter upply. Iportant: oberve the polarity indicated on the wiring diagrae! The iniu adiible pule interval tie i 2.5, allowing input frequencie up to 200 Hz yetrical pule. Active puler (current ignal >3 A) are connected via the galvanically iolated optocoupler input. The input current i liited by a contant current circuit to about 3 A in the voltage range 5 to 30 VDC. Thi enure coplete galvanic eparation the flow eter calculator, allow an input frequency range up to 0 khz with a iniu pule interval tie 50 µ. 3.3 Teperature eaureent Teperature eaureent are ade with the well-proven dual lope principle which i extreely reliable. The two enor (Pt00) receive current pule in rapid ucceion. Thi prevent any intrinic heating. Senor can be connected with the 2-wire or preferably with the 4-wire technique. 2-wire circuit Since the wire reitance i added to the teperature eaureent reitance in 2-wire circuit, unequal wire length can caue ignificant error unuable reult. 2-wire circuit hould only be ued with wire length below 0. Extenion lead ut be exactly the ae length pa through the ae cable. In all other cae, only 4-wire circuit enure adequate preciion. Extenion lead ut have a croectional area at leat 2 or preferably wire enor 4-wire enor are not abolutely neceary a 4-wire circuit. A 4- wire connection between eter enor i ufficient, but thi require a 4-pole enor connection box or head (ee wiring diagrae). For extenion, we recoend paired 0.8 Ø twited telephone cable. Extenion i only adiible to 5, with pacing fro other cable in copliance with EN Longer extenion are the reponibility the operator, which ut con with the applicable CE requireent. Connection enor head with threaded connection All parallel wire (uch a at terinal 3 7) can be connected together to the enor head on the ae terinal uing a cable lug clap. Cable enor: direct connection Cable enor: 4-wire extenion Head enor: 4-wire intallation Cable enor: 2-wire extenion Source+ Sene+ Sene- Source- Source+ Sene+ Sene- Source- Source+ Sene+ Sene- Source- Source+ Sene+ Sene- Source- Source+ Sene+ Sene- Source- Source+ Sene+ Sene- Source- Source+ Sene+ Sene- Source- Source+ Sene+ Sene- Source Cold ide Hot ide Senor type PLC 85/00/2 PLC 20/00/2 PLC 20/00/2 Cold ide Hot ide Cold ide Hot ide Senor type PLH xxx/00 TPK xx Cold ide Hot ide AM Recoended type connection

6 3.4 Factory configuration If the unit i to be ued a a verified (calibrated) eauring device, all the paraeter relevant to calibration have to be entered during anufacture, after which they ut not be odified. A locking echani inide the verification ection prevent any further acce to thee paraeter. Apart fro the data ued to copute heat conuption, thi particularly applie to flow eter paraeter change uch a pule value, debounce filter point intallation, a well a the capacity range with correponding diplay unit. For factory prograing, value the above data to be upplied on the pecification, are theree atory. 3.5 Field configuration The ter "field configuration" i ued to cover all the function which ay be odified by the uer at any tie without affecting the energy calculation. In order to prevent tapering the tariff etting by unauthoried peron, additional ecurity i provided by the following protection concept: Authoried peron Authoried per. bee verification Supplier after verification Uer after verification Method protection (type locking) Hardware protection on calculator circuit board, ealed: Lock level 0 HW protection on baic circuit board. Lock level Stware without protection Lock level 2 Poibility etting device Setting with CALTOOL-P Setting with CALTOOL Setting with CALTOOL function MBUSTOOL MBUSTOOL Heat eterering function Diplay unit ing pule value Intallation point flow enor Switching debounce filter on Billing 2 Regitration Integration Text field input -tie aud rate u addre utput option...8 vent counter oothing factor 2AIN BDE, BDV option TWIN E, TWIN V option DTF, ISPC option a deired a deired liited correction B B O E S 36e- 3.6 Menu tructure page Meter diplay The diplay conit a 2-line liquid crytal unit which ha a capacity 2 x 20 character, with alphanueric 7 x dot atrix preentation. For ain powered unit, the diplay i witched on by the firt key preed, hut f autoatically five inute after the lat key ha been preed. The default diplay i the ain window which how energy volue. The following diplay can be called up:

7 function iplay D ontent C eark R Variant value Pule ide Intalled l/pule,0000 IPW ide Cold EBS 05 fro verion a diplay ain M h MW E V 3 Energy Volue MWh EH H V 3 (option) unit etering econd S h MW E or L V 3 option diplay Other decription field ext T r Boile Main Unit Heating Central orth N character Maxiu 40 eage rror E Error eage Error See value illing B h MW E Billing billing on Energy Billing E2 diplay additional option MWh E Billing 2 billing on Energy 2 Billing E2 diplay additional option value ntantaneou I W M P r powe etering M 2 Q P2 diplay additional ISPC TWIN-E option Q 3 h / e rat Flow K 63.2 DT ep. T e differenc Teperature 65. C 28.3 H C e id ide/cold hot Tep. Wh/l/K.2 -fact. K r K-facto kg/l enity D t poin intallation at Denity ate D e Dat 3.45 ie T e Ti h r counte hour Service Logger Data function) (Hitory onth Periode inute 60 tie Integration Recording Integration nuber progre in now the Today' progre now in Nuber MWh E now during Energy progre in V 3 now during Volue progre in :45 Tie MW P in axiu power the Tie :3 Tie Q 3 h / in rate flow highet Tie Finih MWh E end at Energy V 3 end at Volue :45 Tie MW 0.93 P in axiu output the :33 Tie Q 3 h / in rate flow highet the Tie 0 nuber penultiate the Finih nuber Finih with ontinue c nuber Finih MWh E end at Energy V 3 end at Volue :45 Tie MW 0.93 P in axiu power the Tie :33 Tie Q 3 h / in rate flow highet the Tie 4 36e-2

8 function iplay D ontent C eark R Variant configuration actory F nuber Serial Man. nuber Serial anufacture 200 Ver. MB. CALEC calculator Heat nuber verion Type Deignation a uch deignation, Option etc. ISPC / BDE 000 Fluid-Nr. Water 000 no. carrier Heat deignation Fluid availabe fluid Other Pt00 enor Tep T C type Senor range Senor paiv Ipul IN 0/ Ter. E input Volue terinal Connection l.00 value Pule Hz 20 frequency Max. on witched filter Debounce enor Flow ide cold location voluethe location Intallation : prograed flow enor, tric low Inhibition 0.00 T D C Miniu teperature energy difference calculation option diplay additional DTF, ISPC, TWIN-E, TWIN-V, 2AIN BDV, configuration Field Output Relay 50/5 Ter. aignent Output terinal Connection Energy Pule Wh 000. value Pule it aignent Function unit ize counter Event 2 utput O y Rela 2 52/53 Ter. aignent Output terinal Connection Invere lar A t aignen Function Invere Alar counter Event 3 utput O t outpu Analogue 3 70/7 Ter. aignent Output terinal Connection A Current Q 3 h / range Current range Meauring A Current3 A 6.08 current output field Control 4 utput O t outpu Analogue 4 72/73 Ter. aignent Output terinal Connection A Current4 kw 0-50 P range Current range Meauring A Current4 A 2.8 current output field Control oon 5 utput O t Even 5 / Ter. without counter virtual terinal Liit Q 3 h / it aignent Function unit ize Liit duration counter, Event exceeded i value liit which -Bu M = Baud M-Bu 000 Adr. 24/25 Ter rate Baud addre M-Bu + Terinal anguage L h Engli Language Change election Language Deutch Françai Italiano tet tatu S z H 4.88 = f IN = t IN at frequency pule Vol. pule lat ince Tie IN2 diplay Additional ISPC, TWIN-E, TWIN-V, option 2AIN BDV, DTF, Level Lock acce MBu tatu level Lock counter Acce tet iplay D # ############################## ############################### 36e-3 N.B. The lited paraeter value are by way exaple only do not necearily repreent tard etting.

9 Error eage on the diplay On the ain diplay, error are indicated alternately on line line 2. The error enu provide a ore detailed plain text decription. The table which follow contain a election poible error type: H W Tep Alar (Cold) Senor error, cold ide (hort circuit, breakage, juper iing) H W Tep Alar (Hot) Senor error, hot ide (hort circuit, breakage, juper iing) Delta-T Alar T eperature difference outide range C S W Tep Alar (Cold) Teperature alar, cold ide (value outide the eauring range) S W Tep Alar (Hot) Teperature alar, hot ide (value outide the eauring range) Relay overflow (a fro verion 05) Relay witching frequency exceeded Option Alar Prograing doe not atch hardware Overflow Alar Power or flow capacity exceeded Undervoltage Alar Supply voltage i too low, e.g. bu upply Overvoltage Alar Supply voltage i too high Naur breakage Naur puler i faulty or broken, I<0.2 A Analogue input Analogue input card (2AIN) i not available or i faulty M-Bu error eage The M-Bu protocol contain error eage in coded. 3.8 M-Bu counication interface The CALEC MB incorporate the tardied M-Bu interface (in conity with EN 434-3), featuring variable data at which enable all the paraeter to be read out. The ae interface can alo be ued to progra the enabled auxiliary function option with the help the Aquaetro-CALTOOL MBUSTOOL tware. Bidirectional optocoupler are ued to iolate the bu with the interface fro the unit. The M-Bu connection i ade to terinal 24 / 25, regardle polarity. 3.9 Auxiliary power output An 8 VDC auxiliary power upply, galvanically iolated fro the calculator, i available on terinal 64 (+) 65 (-) with current capacity up to 00 A. Thi i intended e.g. powering 4 analogue output or one 2-wire flow enor with pule output. 4. Option Slot are provided on the bae circuit board option card which, when inerted, have no effect on the calibrated part the eter. The unit recognize each option card inerted indicate the type terinal allocation on the diplay. The optical interface con electrically echanically with the ZVEI tard, IEC 07 (EN607), but it upport the M-Bu protocol in conity with EN 434. Socket No. Output Terinal Output Terinal Socket No. 50 / 5 2 No. 52 / 53 Socket 2 3 No. 70 / 7 4 No. 72 / 73 Socket 3 5 No. 74 / 75 6 No. 76 / 77 Socket 4 7 No. 78 / 79 8 No. 80 / 8 36e-4 36e-2

10 4. Relay card 2RNC Thi incorporate two witching contact to which any paraeter can be allocated via the interface. Thee olid tate relay have a witching capacity up to 00 A AC or DC at 50 V. Function allocation can be odified at any tie via the M-Bu interface. The following prograing option are available: Pule function: a output contact adjutable energy flow volue pule. Pule duration i about econd. For fat pule train, the pule duration i decreaed to the ax. pule frequency 6 Hz with equal pule interval tie (ee "Relay overflow" error eage). Statu function: a liiting value (GW) relay onitoring flow (Q), power (P), inflow outflow teperature (H or C) or teperature difference (D). Liit can be elected with or without witching hyterei. If a hyterei (GH) function with eparate rewitching value (aller) i elected, thi ut be pecified additionally. Alar function: a alar contact ignalling a heat eter error, optionally a cloing (AE) or opening (AA) alar contact. 4.2 Relay card with realtie clock 2RWC The function thi card i identical to relay card 2RNC except that it ha an additional battery-powered clock odule data tie recording (without autoatic witchover between winter uer tie) aking it ain power failure pro. The battery i oldered onto the card lat about ten year. The tie are et via the M-Bu interface. Tie deviation without change can be corrected once per onth with the keypad on the front panel (e.g. uer/winter tie changeover). Only one clock card can be inerted per eter. The card (including battery) can be intalled reoved without daaging the calibration eal. 4.3 Analogue output card 2AOU Thi card incorporate two current output (galvanically iolated fro the heat eter), which are freely prograable. Thee output require a eparate voltage upply, are available in either active or paive verion. The paive verion require a current upply (internal or external) connected to the terinal. In active ode the internal auxiliary power upply i loaded at 25 A per channel. The axiu load reitance depend on the upply voltage. If the internal auxiliary power upply i ued, the axiu load reitance i 600 Oh. Technical pecification Voltage range (paive) VDC fro external auxiliary ource 8 V fro internal auxiliary ource Current range A ( A with liitation ) Maxiu load R L (Oh) ax. = (U - 5)/0,02 A Reolution 2 bit Max. converter error 0.5% actual value + 0.5% full cale Meaured variable Power, flow rate, teperature H, C, D Additional paraeter the option TWIN E, ISPC ) Operation with 0 to 20 A (e.g. generating a 0 to 0 V output on a 500 Oh reitor) i poible but ubject to one liitation: Due to reidual current requireent the output circuit, the iniu current cannot be le than 200µA, thu raiing the zero point. 36e-5 Paraeter range can be prograed at any tie via the interface. Thee are not ubject to verification.

11 4.4 Double analogue input 2AIN Application To proce analogue current ignal fro flow preure enor heat eaureent. The unit ha two independent 0/ A input i accood in the cover (together with the calculator circuit board). Of all the hardware option, thi i the only one which cannot be retritted. Required ination When ordering, pleae upply the following ination each input: Zero point the range (0 or 4 A) Unit eaureent (flow rate in 3 /h, t/h) Meauring range 0/4 A correpond to 0 3 /h, 20 A correpond to... Flow rate at which ignal hould be uppreed <... 3 /h Technical data The accuracy requireent energy eaureent are defined in the Heat Meter Stard, EN 434:997 a a function the declared iniu teperature difference. It i aued there that the volue input to the calculator i error-free, although thi i only true weighted pule (litre per pule). The analogue ignal repreent a flow rate (volue per unit tie) which ha to be converted into volue unit by the calculator. The error which occur a a reult thi, the inaccuracy the current eaureent, are tranferred to the calculator a additional error. Thee ut not caue the periible error the calculator to be exceeded. Becaue the eauring uncertainty the A/D converter, a hort circuited or opened input can alo be regitered a (low) flow. Such error can be prevented with the flow rate uppreion cut-f option entioned above. If no value i indicated, a default 0.75% Q ax i prograed. Current range 0/ A Stware i ued to ake the adaptation to 4-20 A. Linear ignal characteritic. Meauring error 0.005% actual value % full cale. Input reitance Thi i deigned o that the axiu voltage drop acro the input i le than 3V (Ri 20 Oh V) No galvanic iolation: The analogue input i not galvanically iolated fro the baic unit. The negative wire i connected to the unit earth. Calibration Stware i ued to per the calibration. For analogue value 0/4 A 20 A, the correponding digital value both channel are tored in an EEPROM on the analogue input card. Overload protection The input are protected againt overload in the range fro -5 V to +40 A. Initial Verification The initial verification i alway pered in conjunction with the calculator. Becaue the unit i contained in the ae cover a the calculator circuit board, ealing protect the etting againt anipulation. 4.5 Control tariff input DTF Parallel energy etering can take place on a econd counter E2 if a 5 to 30 VDC upply i connected to the control input IN2. For exaple, control input IN2 can be activated by an external tariff ignal, or by an internally prograed threhold value which i dependent on a tie value or a liit value via an output ignal fro the plug-in relay card. The ain eter E i not affected by thi function. Caution: Thi option cannot be ued at the ae tie a the ISPC option decribed below. 4.6 Pule counter input ISPC (ISPC = independent econdary pule counter) Input IN2 erve in thi verion counting pule fro a econd ource independent the ain eter. The reading can be diplayed on the eter itelf or via the M-Bu, i deignated "flow 2" with unit l. Application: a eparate eter water, ga, electricity, etc. reote reading. The pule input can be connected to the following puler: Contact puler Reed or relay contact (witche). The axiu pule frequency i 50 Hz. Naur or open collector puler Here too, the axiu input frequency i 50 Hz but, if neceary, a 64: divider can be witched on during factory configuration. In thi cae, the axiu frequency i liited to 200 Hz by a filter. The divider ha no influence on the etering reult, but it doe degrade the reolution. Active puler, frequency puler (galvanically iolated via optocoupler) The 64: divider i alway witched on the axiu frequency i 000 Hz. For reote ignalling an alar that i independent the heat eter, the ignal tatu input IN2 can be onitored tranitted intead uing it a a counter. Application: reote onitoring alar ignalling other device in AMBUS yte.

12 4.7 Enthalpy denity data other heat carrier, FLX / FLU If other heat carrier are ued intead water their enthalpie denitie ut be known o that the configuration data can be adapted accordingly. At the preent tie data ore than 30 heat carrier in variou ixture are available in our databae. Ination i available upon requet. Heat eter heat carrier other than water cannot be ficially calibrated. Deignation: FLU = heat carrier included in exiting databae. Art. No. 8'625 FLX = heat carrier ut be newly calculated added to databae. Art. No. 8'626 For new heat carrier, data pecific heat (enthalpy) denity (pecific weight) ut be pecified at leat 4 teperature within the deignated operating teperature range. 4.8 RS232 Counication interface Thi optional odule require a free ocket on the baic circuit board. It upport 300 to 9600 baud. The interface i powered by the auxiliary upply (loading 25 A) theree galvanically iolated fro the baic unit. The ignal GND, TXD RXD are available at the connection terinal. A ignal +0V (which can be ued a DTR or RTS) i applied at a fourth connection terinal. Half-duplex counication i ued; however, traniion reception ue eparate channel. The protocol ued i identical to the M-Bu protocol defined in EN 434-3:997 IEC Exaple RS232 in ocket Socket Ter. 50 Ter. 5 Ter. 52 Ter. 53 RS232 TXD RXD GND +0V 4.9 RS485 Counication interface Thi optional odule require a free ocket on the baic circuit board. It upport 300 to 9600 baud. The interface i powered by the auxiliary upply (loading 50 A) it i galvanically iolated fro the calculator. Half-duplex counication i ued. Traniion reception ue the ae channel. The protocol ued i identical to the M-Bu protocol defined in EN 434-3:997 IEC Exaple RS485 in ocket 4 Socket 4 Ter. 78 Ter. 79 Ter. 80 Ter. 8 R S485 B + B Bidirectional eaureent, BDE (dependent on teperature difference) If a heat tranport circuit with one direction flow i ued to heat a well a to cool, poitive negative teperature difference will occur alternately. The cooling energy (prefixed with a negative ign) i calculated in the ae way a the heating energy. When the prefixed ign change ( T<0K), the calculator witche over to an additional energy etering regiter, E-. For onitoring purpoe, the volue i alo regitered a V- during the negative phae. Application Meaureent energy exchange (draw / upply) interlinked network, accuulator, etc.; geotheral heat, latent heat accuulator, air conditioning upply 4. Bidirectional eaureent, BDV (dependent on direction flow) To eaure energy in circuit with an alternating direction flow. The flow ut be recorded with a enor which recognie the ward revere direction. In addition to the volue ignal output, thi enor ut be fitted with one additional direction ignal output. Exaple: EM ultraonic flow enor. Application Meaureent energy exchange (draw / upply) interlinked network, charging / dicharging in heat accuulator (loading boiler, earth accuulator, ice accuulator, latent heat accuulator, air conditioning convector heat exchanger)

13 4.2 Twin calculator TWIN E Double heat eter with two eparate heat calculator uing the ae teperature value both calculation. Thi variant can be a cot effective way replacing a econd heat eter if two different flow enor are intalled in one coon heat circuit. The TWIN E-calculator cannot be ficially calibrated (in Gerany). For application which are ubject to atory calibration, it i theree neceary to ue eparate heat eter. Application Energy flow eaureent in a loy hydraulic circuit CALEC MB TWIN AM Twin calculator TWIN V The TWIN V i ued o that two parallel operating flow enor with identical or different deign, ize pule value, can be connected to one heat eter with coon teperature eaureent point (one pair enor). Thi i done in order to extend the flow rate range ( exaple: uer / winter operation). Individual intallation the two flow enor on the cold or hot ide i poible. Application exaple V2 V Soer Suer Winter Th CALEC MB TWIN Tc AM Cobination option Option RS232, RS485, 2AOU, 2RNC 2RWC each require one ocket. The extent to which they can be cobined i theree liited by the nuber ocket. The following rule alo apply: the axiu nuber interface card i one the axiu nuber analogue output card i two at the ae tie, or one analogue output card one interface card the axiu nuber relay card i three which no ore than one ay have a clock coponent. On the terinal, the current available at the auxiliary voltage output i: 00 A 75 A with RS232 card intalled 50 A with RS485 card intalled

14 5. Technical data Heat eter calculator Teperature eaureent range T 0 C C Teperature difference range T K Pattern approved operating range T 5 C C Pattern approved teperature difference range T K Teperatur enor type, Connection tyle Senor cable length Energy diplay unit Diplay capacity Maxiu theral power Pt00 according to IEC 75, two or four-wire Teted to 5 kwh - MWh MJ - GJ MW / GJ/ h Volue diplay unit Diplay capacity 3 or Ml (Megaliter) M eauring calculation tie interval ~ 2 ec. Tie between inpection 0 year Accuracy cla Meauring calculation error EN 434- / OIML Cl % at T 3K Power upply interface Main upply 230 V (+0-5%) 50 Hz, 5 VA, fully iolated Supply via AMBUS -network V DC or V AC 50/60Hz Counication interface on the calculator front panel Optical interface acc. to EN434-3 with M-Bu protocol IEC Counication interface at the M-Bu terinal M-Bu protocol according to EN (IEC 870-5), galvanic iolation Flow rate input Flow pule input - Contact puler - Open collector puler - Naur puler (DIN 9234) - Active puler via optocoupler input Prograable pule value Analogue input flow rate (option) Maxiu flow rate Flow tranitter ounting poition 2nd Flow rate or control input (optional) Control input Flow pule input - Contact puler - Open collector puler - Naur puler (DIN 9234) - Active puler via optocoupler input Prograable pule value ON OFF Duration pule 25 Duration pule 2.5 Duration pule 2.5 Duration pule 50 µ, ax. 0 khz, V, 5 A l with a reolution 0.00 l A or A, linear ignal progreion Input reitor 20 Ω, no galvanic iolation 00'000 3 / h Cold or hot ide with active ignal via the optocoupler input V, 5 A with cloed contact no active ignal with open contact ax. 50 Hz, no debounce filter ax. 50 Hz, with 64: divider ax. 200 Hz ax. 50 Hz, with 64: divider ax. 200 Hz Duration pule 50 µ, ax. khz, V, 5 A l with a reolution 0.00 l Analogue input flow rate (option) A or A, linear ignal progreion Input reitor 20 Ω, no galvanic iolation F low enor ounting poition Cold or hot ide (with option Twin E only) Output function (optional) Relay output card 2RWC, 2RNC two olid tate contact, potential-free ax. value 50 V AC/DC, 00 A, RON 20 Ω, ROFF MΩ A nalogue output card 2AOU galvanically iolated, to be operated actively or paively, output current A or A Supply VDC, RL ax at 24 V = 950 Ω Interface card RS baud half duplex, ax. cable length 5 Interface card RS baud half duplex, ax. cable length 200 Houing, environental condition Wall ounting intallation on DIN rail (35 ) or by three crew fixture Protection cla IP 54 Abient teperature range, Environental cla C, EN 434 Cla C Storage teperature range C 3-68-e3

15 5. Heat calculator The CALEC MB heat calculator i copleted a a cobined heat eter with water a the heat conveying liquid by adding the ubaeblie two eparately atched approved platinu teperature enor a eparately verified flow enor. The aount water flowing i recorded by ean volue proportional pule or flow rate proportional analogue ignal (0/4...20A). It i converted into a unit by the calculator uing the teperature the water in the flow enor. Fro the reitance value the teperature enor the heat carrier propertie, the enthalpy difference i calculated ultiplied by the previouly deterined a. The reult i tored in a dataecured eory (EEPROM) at the ae tie appear on the 8-digit LC diplay a energy conuption in kwh, MWh or MJ, GJ. The calculator i equipped a tard with a galvanically iolated M- Bu interface, coplying with the EN (IEC protocol) tard, which i available both on the houing cover a an infra-red tranitter on connecting terinal. 5.2 Voltage upply According to choice, voltage can be upplied to the CALEC MB either at 230V AC, or via the AMBUS network. Both type upply ay be provided at the ae tie. The diplay, the auxiliary voltage, the RS232 RS485 option cannot be upplied over the AMBUS network. Operation via the AMBUS network i not periible when the device i ubject to atory calibration. 5.3 Connection flow enor Flow input IN (terinal 0/) allow connection paive or active puler. Unit are configured according to order. To a liited extent, the input variant can be elected on ite. The neceary ination i given in the operating intruction. 5.4 Connection teperature enor 2-wire connection The teperature enor wire are connected to terinal 7/8 (cold ide) or terinal 5/6 (hot ide). Iportant: The four etal juper on the enor terinal ut be connected according to the wiring diagrae, otherwie teperature eaureent cannot be ade. 4-wire connection The teperature enor wire are connected to terinal 3+7/4+8 (cold ide) or terinal +5/2+6 (hot ide). The etal juper on the enor terinal ut be reoved individual wire connected to all 8 enor terinal. Reveral the "ource" "ene" wire on the ae ide the enor ha no detriental effect. 5.5 Intallation ode The following tard intallation ode are available: Wall ounting with upplied DIN rail Wall ounting directly with crew Wall ounting on exiting CALEC bracket Panel ounting with panel ounting bracket Panel ounting a replaceent CALEC MCL/MCP

16 6. Teting / calibration 6. Teting For teting verification purpoe the eter i fitted with a highreolution diplay energy flow. By preing the "UP" "DOWN" key iultaneouly, the diplay change to high-reolution ode, with four extra digit correponding to an additional factor Preing any key return the diplay to tard ode. Teting can alo take place via the optical interface on the houing cover or terinal 24/25 uing the M-Bu protocol according to EN In both cae the M-Bu interface i galvanically iolated free any electrical feedback. 6.2 Sealing verification point The verification ark i placed on the front panel the eter (outer urface cover). The calibration eal prevent unauthorized acce to the verified part the eter by covering the interior cover fixing crew. Factory eal protect the connection zone the eter after coiioning by covering the acce crew on the outide the cover. 6.3 Official calibration approval The CALEC MB ha been approved according to EN 434. In Switzerl Gerany, it ha been authoried coercial ue in application requiring atory calibration. Approval teting alo cover all currently valid afety electroagnetic copatibility requireent. The eter i theree deignated with the CE ark. Option BDE, BDV, TWIN E TWIN V cannot be ficially calibrated in Gerany. EN 434 doe not cover application thi ort. If an ficial tet i neverthele required, a pecial tet can be carried out by the reponible calibration authority which, in practical ter, i equivalent to a calibration. 6.4 Note regarding ficial calibration requireent Verified heat eter are ubject to uperviion by national calibration authoritie ut be re-verified bee expiry the calibration validity (uually 5 year). In oe countrie (uch a Gerany Switzerl) large-cale eter >0 MW are exepted fro calibration. Verification cover all unit copriing a heat eter, i.e. the calculator unit, flow enor both teperature enor. The heat eter operator i reponible coplying with recalibration requireent.

17 7. Micellaneou 7. Acceorie Intallation acceorie according to order lit (ection 8). Teperature enor, enor ierion leeve, enor connection ocket according to eparate docuentation. Flow enor heat eter according to eparate docuentation. Reading head unit (HHU) including tware. Accounting tware available on requet. M-Bu counication tware reading paraeterizing by PC. MBUSTOOL, CALTOOL 7.2 Guarantee operating life The which a CALEC MB can be ued until the firt inpection i 0 year. Even heat eter which are not ubject to atory calibration hould be checked after a 5-year in ue ince, in particular, wear containation the flow enor can caue ubtantial eauring error. The ination about the ue i baed on experience. Warranty i according to the general ter delivery.

18 8. Ordering data Ordering data CALEC MB heat calculator. 8. Baic unit CALEC MB MB-2S MB-4S Power upply Tep. enor 230 V AC or AMBUS Pt V AC or AMBUS Pt00 The baic unit doe not include any relay! Output option T ype deignation Order No. 2 ocket MB 2S ocket MB 4S e Hardware option (a additional order ite) Output Analogue Mounting input acceorie Card 2 Relay with clock 2RWC Relay without clock 2RNC 862 RS232C interface RS RS485 interface RS analogue output 2AOU analogue input 2AIN 8667 Mounting kit front panel Converion kit, wall CALEC MCL/MCP to MB Converion kit, front panel CALEC MCL/MCP to MB MPM 8627 CWM 8628 CPM 8629 Optical head Optical reading head OCI Only card with clock i poible per unit 36e Stware option (additional order ite) Function PC tware Control tariff input Pule Heat New collector input carrier other than water heat carrier: to be prograed Bidirectional eaureent ( T-dependent) Bidirectional Double Double eaureent (dependent on direction flow) calculator (2 flow enor) calculator (volue iation) Reading prograing tware ditto, with Lock level 0 function DTF 8623 ISPC 8624 FLU 8625 FLX 8626 BDE 8663 BDV 8664 TWIN-E 8665 TWIN-V 8666 CALTOOL 8648 CALTOOL-P e-9 All other device prograing data ut be indicated on the CALEC MB pecification.

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