WR3 - Heat Meter Assembly Datasheet

multidataInstallation and operating manualElectronic energy calculator for heat metersM-Bus and 2 inputs/outputs optionalAll that counts. EnergyMetering:5??General informationWith multidata you have acquired one of the most up-to-date, modern heat calculators cur-rently available on the market.Expressive symbols in the display and easy menu navigation make readout simple. It can be operated with one single button. The calculator is equipped with a long-life battery made for operation during the initial verification validity period (5 years) in-cluding a reserve of at least another year.Initial verificationmultidata is produced and tested in compliance with the new European measuring instruments di-rective (MID). According to this directive, devices do no longer carry an initial verification stamp, but rather the year of the device’s declaration of con-formity (recognizable on the front of the device, for example: M09). The MID controls the use of heat meters up to the moment they are placed on the market resp. their first putting into use. After this, the national regulations for devices subject to legal verification apply within the EU.The duration of initial verification validity in Ger-many remains 5 years for heat meters. After this period has expired, the measuring device may no longer be used for billing in commercial use. The regulations resp. validity period may vary in other countries of the EU.Electro-magnetic interferencemultidata fulfils the national and international re-quirements for interference resistance. To avoid malfunctions due to other interferences, do not install fluorescent lamps, switch cabinets or electric devices such as motors or pumps in the immediate vicinity of the meter (minimum dis-tance 1 m). Cables leaving the meter should not be laid parallel to live cables (230V, minimum distance 0.2 m).Care instructionsClean plastic surfaces with a damp cloth only. Do not use any scouring or aggressive cleaning agentsThe device is maintenance-free during the ser-vice life. Repairs can only be made by the manu-facturer.Declaration of ConformityZENNER International GmbH & Co. KG declares that this product with the number of the EC type-examination certificate DE-08-MI004-PTB012 complies with the requirements of the EC directives 2004/22/EC (Measuring instruments directive) and 89/336/ EEC (electro-magnetic compatibility). The most up-to-date information about this product can be found at www.zenner.com?Status display / Error codesThe symbols in the table below show the meter’s operational status. The status messages only appear in the main display (energy) The temporary display of the warning triangle can be caused by special operating states and does not always mean that the device is malfunctioning. However, should the sym-bol be displayed over a longer period of time you should contact the service company.Error codes show faults detected by multidata. If more than one error appears, the sum of the error codes is displayed: Error 1005 = error 1000 and error 5.Symbol Status Event Flow existent - Attention Check system / device for errors Data transmission - Emergency operation Exchange device External power supply -Code Error Event1 Short-circuit return sensor Check sensors, replace if needed2 Interruption return sensor "3 Short-circuit supply sensor "4 Interruption supply sensor "5 Hardware error Exchange device6 Battery empty or wrong temp. sensor Check device / sensor7 Temperatures out of measuring range Correction of heating system100 Emergency operation Exchange device1000 Battery life time exceeded "2000 Initial verification expired "> 8000 Internal hardware error "?Technical data I/O Load max. 30V DC/20 mAType Open Drain, n-channel FETPulse-duty factor 1:1 (out); 1:9 (in) Input frequency max. 1 Hz / 200 Hz (optional)Closing time Tp 400 ms < Tp < 600 msTechnical dataTemperature range °C 1 - 150Temperature difference range k 3 - 120Display Multifunctional LCD, 8-digit, floatingDisplay unit MWh, kWh, GJ, MJInterface flow sensor Models with contact pulsers or active pulserTemperature sensor connection PT500, optional PT100, PT1000Max. cable length temperature sensor 2 wire 12.5 m (PT500), 2.5 m (PT100), 20 m (PT1000)Max. cable length temperature sensor 4 wire 20 mInterfaces optical, optionally ZR-Bus, M-Bus, RS-232, remote readout outputsAmbient temperature °C 5 - 55Power supply Battery 3.6 V Lithium, optionally mains supply 230 VBattery lifetime 6 years, optionally 11 yearsProtection class IP 54 / IP 6, acc. to DIN 40050Mechanical/electro-magnetic class M1/E1Accuracy class 2/3 (installation dependant)Measuring cycle dynamic, typ. 30s/10s?CommunicationAt calculators with two pulse outputs typically the first output (I/O1) gives the energy and the sec-ond (I/O2) the volume information.The pulse value is permanently set and corre-sponds with the last position of the associated display value.Example:Output 1 = energy output Energy display = XXXXX.XX MWh Last position = 0.01 MWh = 10 kWh Output pulse = 10 KWh The calculator can be ordered with two inputs op-tionally. The pulse value can be called up in the display (see the display overview, Level 1). multidatamultidatamultidata multidataInputmultidatamultidatamultidata multidataOutputClosing timesM-Bus (optional) The optional M-Bus interface complies with the norm EN 1434-3 and operates with 2400 baud fixed. It can be set to 300/9600 baud if neces-sary.?DimensionsHeight: H = 106 mmWidth: B = 126 mmDepth: T = 54 mm www .com ZENNER is a registered trademark of ZENNER International GmbH & Co. KG.Subject to modifications and errors expected. Any liability for misprints excluded. SAP 120966_090729_ENBHT?Installation instructionsSafety instructionsThe installation has to be done by qualified per-sonnel. Read the instructions carefully right up to the end before starting to mount the device.The current laws and regulations have to be observed, especially EN 1434 part 1+6, (in Ger-many also AGFW directive FW202 and DIN 4713 part 4 and the initial verification directive).At devices with communication interfaces or mains supply the general technical rules and the correspondent regulations have to be followed.While demounting flow sensors and temperature sensors make sure no heating water escapes from the pipe – this can cause burns Close valves and release pressure before instal-lation.General Information Take care of:the display must readable at all times,to avoid malfunctions due to other interfer-ences do not install fluorescent lamps, switch cabinets or electric devices such as motors or pumps in the immediate vicinity of the meter (minimum distance 1 m),all welding must be finished,the ambient temperature must not exceed 55°C,the type of temperature sensor must corre-spond with the calculator,the pulse value of the flow sensor must corre-spond with the one from the calculator.The calculator has 7 screwed cable glands for wires with a diameter between 4.2 and 10 mm.Keep unused glands closed.Mind the connection order: temperature sensors first, flow sensor afterwardsmulitdata is delivered ready for operation. It does not need any settings or adjustings.¦¦¦¦¦¦?Installation heat calculator recommends to mount the calculator on the wall. Do not mount the device at the pipe or attach it directly on the flow sensor.The mounting adapter at the backside of the cal-culator can be used for rail mounting or “reverse” for wall mounting.For wall mounting attach the adapter with at least two screws to the wall and clip the calculator on it.For rail mounting lift the adapter a little bit, place the calculator on the rail and push the adapter back until it locks.Connection sensorsThe mounting of the temperature sensors should be done symmetrical with direct immersion. If immersion sleeves are used they have to be checked for conformity to MID and have to be marked accordingly. The installation of immer-sion sleeves has to be done according to DIN EN 1434-2.The sensor cables are marked with colours (red = supply, blue = return). Do not buckle, extend or shorten the wiresDo only use paired sensors with the same serial number on it.At 2-wire systems the cable length of the tem-perature sensor for supply and return should not exceed 2.5 m for PT100 and 12.5 m for PT500. At 4-wire systems the maximum cable length is 20 m. Consider EN 1434-2 regarding the diameter of the wires.Supply and return sensors must be inserted into the immersion sleeves completely.Installation points in the flow sensor can be used for symmetrical installation of the tem-perature sensors.Seal temperature sensor after installation to prevent unauthorized demounting (seals in-cluded).Do not wrap or install wires along hot pipes.¦¦¦¦¦¦¦Rail mounting Wall mounting?Switch ?-/?-wireCalculators equipped with 4-wire measuring sys-tem can be switched to 2-wire with the switch on the top left side of the connection board.Switch to the left for 2-wire, switch position on the right for 4-wire measurement.Connection flow sensorThe total length of the wire between flow sensor and calculator should not exceed 10 m.With mechanical flow sensors the connection order is optional. Mind the polarity at electronic flow sensors.External power supplyA small vertical line appears in the display when the optional external power supply is on service. In case of a failure of the external power sup-ply the devices switches automatically to battery supply. The battery lifetime can be checked in the display (level 3). After having reached the date, the battery has to be replaced if needed.Operation testCheck the calculator for any error codes in the display after installation (see table for error codes). Most of the errors can be deleted by pressing the button.If the error appears permanently, it will be de-tected at the next measuring cycle and displayed again. Check weather the volume information is updated and the displayed temperatures corre-spond to the present ones while the system is running (measuring cycle 2 minutes max.).When attaching the top cover on the housing pulses on the inputs can possibly be generated.Check readings of the inputs and correct if nec-essary.SealingSeal the device with the included seals to pre-vent unauthorized opening.MaintenanceRepairs or overhaul are only allowed by the manufacturer or companies authorized by the manufacturer.10Connector pin assignmentTemperature sensors2-wire measurementSupply 1 - 2Return 3 - 44-wire measurement (optionally)Supply 1 - 2 / 5 - 6Return 3 - 4 / 7 - 8Flow sensorFlow sensor pulse 10 GND 11 Input/OutputI/O 1 pulse 52 GND 53I/O 2 pulse 54 GND 55M-BusM-Bus L1 24 L2 25Depending on the meter’s model the version of the connection board can differ.Connection 2-wire Connection 4-wireIf water meters with a potential free reed contact are connected to the inputs the connection can be made in any direction.Take care of the polarity when connection to a BMS.The connectors are given twice for the incoming and outgoing of the M-bus wire.2 4Switch11Energy at SRDDate SRDSRD value external counter 1SRD value external counter 2Monthly values energy Date month 1 energy consumption 1st monthly value heat energyDate month. val. input 1Date month. val. input 21st mothly value input 11st mothly value input 2Monthly values input 1Monthly values input 2Serial numberCustomer numberInput 1 device numberInput 2 device numberEnergy (main display)VolumeVolume external counter 1Volume external counter 2Segment testSupply temperatureReturn temperatureTemperature differenceFlowInstantaneous powerPulse value counter 1Pulse value counter 2Maximum flowMaximum powerSensor type and installation pointPulse valueBasic configurationModel numberDate battery endTime DatumM-bus addressBaud rateInput displayError statusSoftware versionSLevel 1 Level ?HHLLHold down the but-ton (H) until the device switches to another level or switches back from the sub-menu. HH HLMonthly consumptionLSHLHLLL1?LegendPress the button briefly (S), to switch through the display from top to bottom.When ha ving reached the last menu item the device automatically jumps back to the menu item at the top (loop).Press the button for about 2 seconds (L), wait for the door symbol to appear (upper right corner of the display) and then release the button. The menu is then updated resp. switches to the sub-menu.Hold down the button (H) un-til the device switches to an-other level or switches back from the sub-menu. HLSLevel ? HEnergy at SRDDate SRDSRD value external counter 1SRD value external counter 2Monthly values energy Date month 1 energy consumption 1st monthly value heat energyDate month. val. input 1Date month. val. input 21st mothly value input 11st mothly value input 2Monthly values input 1Monthly values input 2Serial numberCustomer numberInput 1 device numberInput 2 device numberEnergy (main display)VolumeVolume external counter 1Volume external counter 2Segment testSupply temperatureReturn temperatureTemperature differenceFlowInstantaneous powerPulse value counter 1Pulse value counter 2Maximum flowMaximum powerSensor type and installation pointPulse valueBasic configurationModel numberDate battery endTime DatumM-bus addressBaud rateInput displayError statusSoftware versionSNoteDepending on your meter's model its displays can differ in number and order from those shown here.You can download a com-plete and detailed product description in our product area at www.zenner.com.SSS