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multidata

Installation and operating manualchangeover heating/cooling meteror calculators for cooling meters onlywith 2 additional inputs/outputsoptionally with M-Bus, RS 232 and RS 485

EnergyMetering

All that counts.

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General information

With multidata you have acquired one of themost up-to-date, modern heat calculator cur-rently available on the market.The calculator for changeover heating/cool-ing meters can be identi ed by the inscriptionchange over on the front of the body, the cool-ing meters by the inscription cooling. Calcu-lators for heating meters only dont have anyspeci c inscription. Expressive symbols in thedisplay and easy menu navigation make readoutsimple.It can be operated with one single button. Thesetting of the data loggers (depending on thetype of device) is being done via the softwareGMM.The calculator is equipped with a long-life batterymade for operation during the initial veri cationvalidity period (5 years) including a reserve of at

least another year. With a second battery you willreach 11 years.

Initial vericationThe heating energy metering part of the multi-data is manufactured and tested according tothe new European Measuring Instrument Direc -tive. The Year of the Declaration of Conformityis speci ed with the EC conformity mark (e.g.

M10). The cooling energy metering part is manu-factured and tested according to the instructionsof the PTB Instruction TR K7.2. The initial veri -

cation stamp informs about the year of the rstcalibration (e. g. 10).For legal metrology devices, the national regu-lations still apply within the EU. The duration ofinitial veri cation validity in Germany remains 5years for heat meters. After this period has ex -pired, the measuring device may no longer beused for billing in commercial use. The regula-tions resp. validity period may vary in other coun-tries of the EU.

Electro-magnetic interferencemultidata ful lls the national and internationalrequirements for interference resistance. Toavoid malfunctions due to other interferences,do not install uorescent lamps, switch cabinetsor electric devices such as motors or pumps inthe immediate vicinity of the meter (minimumdistance 1 m). Cables leaving the meter shouldnot be laid parallel to live cables (230V, minimum

distance 0.2 m).

Declaration of Conformity ZENNER International GmbH & Co. KG declaresthat this product with the number of the EC type-examination certi cate DE-08-MI004-PTB012complies with the requirements of the EC direc -tives 2004/22/EC (Measuring instruments direc -tive) and 89/336/ EEC (electro-magnetic com -

patibility). The most up-to-date information aboutthis product and of our installation notice can befound at www.zenner.com

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Technical data

Temperature range C 1 - 150

Temperature difference range k 3 - 120

Diplay Multifunctional LCD, 8-digit, oating

Display unit MWh, kWh, GJ, MJ

Interface ow sensor Models with contact pulsers or active pulser

(No Namur or Opto, Passive max 1hz/ active max. 100Hz)

Temperature sensor connection PT500, optional PT100, PT1000

Max. 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 m

Interfaces optical, optionally ZR-Bus (RS 485), M-Bus, RS 232,

remote readout outputs

Ambient temperature C 5 - 55

Power supply Battery 3.6 V Lithium,

optionally mains power supply 230V/24V

Battery lifetime 6 years, optionally 11 years

Protection class IP 54 / IP 65, acc. to DIN 40050

Mechanical/electro-magnetic class M1/E1

Accuracy class according to EN1434

Measuring cycle dynamic 40s/30s/10s

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10

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GND

pulse

VCC 2,5 3,6 V

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Uhigh = 2,5 3,6 VUlow = 0 0,3 V

1 Hz Version: fmax = 1 Hz, Pulse-duty factor 1:1 to 1:9 Inputcapacitance: approx. 10 nF, Input resistance approx 850 kOhm100 Hz Version : not allowed

fmax = 1 Hz,Pulse-duty factor 1:1 to 1:9Input capacitance: approx. 15 nF,Input resistance approx 470 kOhm

Ext. Voltage 3V 30 V DCMax. current 20 mA

Output frequency 1 Hz (8 Hz dynamically switching, if outputwith 1 Hz is not possible)

Switching times: 1 Hz: 400ms < tp < 600 ms 8 Hz: 50ms < tp < 80 ms

1 Hz Version: fmax = 1 Hz, Pulse-duty factor 1:1 to 1:9 Inputcapacitance: approx. 10 nF, Input resistance approx 850 kOhm100 Hz Version: fmax = 30 Hz, Pulse-duty factor 1:1 Input capa-citance: approx. 2,5 nF, Input resistance approx. 850 kOhm

fmax = 1 Hz,Pulse-duty factor 1:1 to 1:9Input capacitance: approx. 15 nF,Input resistance approx 470 kOhm

1 Hz Version: fmax = 1 Hz, Pulse-duty factor 1:1 to 1:9Uhigh = 2,5 3,6V, Ulow = 0 0,3 V, Input capacitance:approx. 10 nF, Input resistance approx 850 kOhm100 Hz Version: fmax = 100 Hz, Pulse-duty factor 1:1Uhigh = 2,5 3,6V, Ulow = 0 0,3 V, Input capacitance:approx. 2,5 nF, Input resistance approx. 850 kOhm

Passive withmechanical contact(Reed)

Passive withmechanical contact(Reed)

Passive withopen drain FET

Passive with opendrain FET

Active f.ex. with

C-MOS Gate

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Typical connection

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Flow sensor inputElectrical connection Schematic diagram Connection data

Electrical connection Schematic diagram Connection data

Technical data additional inputs

Connection data outputs

Technical data ow sensor input

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Switch Connection 2-wire Connection 4-wire

2 4

1 2 3 4 10 11 9 50 51 52 53 54 55 71 72 73 74

Connector pinassignment

Temperature sensors2-wire measurementSupply 1 - 2Return 3 - 4

4-wire measurement (optionally)Supply 1 - 2 / 5 - 6Return 3 - 4 / 7 - 8

Flow sensorFlow sensor pulse 10 GND 11

Input/OutputI/O 1 pulse 52 GND 53

I/O 2 pulse 54 GND 55

M-BusM-Bus L1 24 L2 25

RS-232DTR 71

GND 72

Tx 73 Rx 74

RS-485 +UB 71 GND 72 A 73 B 74

Depending on the model the version of the connection board can differ.

If water meters with a potential free reed con-tact are connected to the inputs there are freeof polarity.Take care of the polarity when the pulse outputsare connected to BMS.

The connectors are given twice for the incoming

and outgoing of the M-bus wire.

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Dimensions

Height: H = 106 mm

Width: B = 126 mm

Depth: T = 54 mm

B

H

T

Communication

At calculators for changeover heating/cooling meters the

rst pulse output (l/O 1) gives the heating energy andthe second output (I/O 2) the cooling energy information.The pulse value is permanently set and correspondswith the last position of the associated display value.

Example:Output 1 = energy outputEnergy display = XXXXX.XX MWhLast position = 0.01 MWh = 10 kWhOutput pulse = 10 KWh

The calculator can be ordered with two inputs optionally.The pulse value can be called up in the display (see thedisplay overview, Level 1).

M-Bus (optional)

The optional M-Bus interface complies with the norm EN1434-3 and operates with 2400 baud xed. It can be setto 300/9600 baud if necessary.The display resolution shall be selected such that thedisplay can not run over within a period of one year. S u

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Rmerstadt 6D-66121 Saarbrcken

Telephone +49 681 99 676-30Telefax +49 681 99 676-3100

E-Mail info@zenner.comInternet www.zenner.com

ZENNER International GmbH & Co. KG

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Installation instructions

Safety instructionsThe installation has to be done by quali ed per -sonnel. Read the instructions carefully right up tothe end before starting to mount the device.

The current laws and regulations have to be ob-served, especially EN 1434 part 1+6, (in Germanyalso AGFW directive FW202 and DIN 4713 part 4and the initial veri cation directive).

At devices with communication interfaces ormains supply the general technical rules and thecorrespondent regulations have to be followed.

While demounting ow sensors and temperaturesensors make sure no heating water escapesfrom the pipe this can cause burns!

Close valves and release pressure before instal-

lation.

General InformationTake care of:

the display must readable at all times to avoid malfunctions due to other interfe-rences do not install uorescent lamps, switchcabinets or electric devices such as motors or

pumps in the immediate vicinity of the meter(minimum distance 1 m)

all welding must be nished the ambient temperature must not exceed55C

the type of temperature sensor must corres-pond with the calculator

the pulse value of the ow sensor must corres-pond with the one from the calculator

At cooling meters for use within German metrol-ogy all the components must be calibrated andlabelled accordingly.For use as changeover heating/cooling metersall the components must be labelled both for ECconformity declaration and or national initial veri-

cation.

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 sensorsrst, ow sensor afterwards!

multidata is delivered ready for operation. It doesnot need any settings or adjustings.

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Installation heat calculatorZENNER recommends to mount the calculatoron the wall. Do not mount the device at the pipeor attach it directly on the ow sensor.

The mounting adapter at the backside of the cal-culator can be used for rail mounting or for wallmounting.

For wall mounting detach the adapter and turn it180, attach with at least two screws to the wall andclip the calculator on it.

For rail mounting lift the adapter a little bit, placethe calculator on the rail and push the adapter backuntil it locks.

Connection sensorsThe mounting of the temperature sensors shouldbe done symmetrical with direct immersion. Ifimmersion sleeves are used they have to bechecked for conformity to MID and have to bemarked accordingly. The installation of immer-sion sleeves has to be done according to DINEN 1434-2. The sensor cables are marked with colors (red =

supply, blue = return with respect to the heatingsystem).

Do not buckle, extend or shorten the wires! Do only use paired sensors with the same serialnumber on it.

At 2-wire systems the cable length of the tem-perature sensor for supply and return should notexceed 2.5 m for PT100, 12.5 m for PT500 and20m for PT1000.

At 4-wire systems the maximum cable length is20 m.

Consider EN 1434-2 regarding the diameter ofthe wires.

Supply and return sensors must be inserted intothe immersion sleeves completely.

Installation points in the ow sensor can be usedfor symmetrical installation of the temperaturesensors

Seal temperature sensor after installation to pre-vent unauthorized demounting (seals included).

Do not wrap or install wires along hot pipes .

Rail mounting Wall mounting

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Switch 2-/4-wireCalculators equipped with 4-wire measuring sys -tem can be switched to 2-wire with the switch onthe top left side of the connection board.Switch to the left for 2-wire, switch position on theright for 4-wire measurement.

Connection ow sensorThe total length of the wire between ow sensorand calculator should not exceed 10 m.

With mechanical ow sensors the connection or -der is not relevant.Mind the polarity at electronic ow sensors.

External power supply A small vertical line appears in the display whenthe optional external power supply is on service.

In case of a failure of the external power supply thedevices switches automatically to battery supply.The battery lifetime can be checked in the dis-play (level 3). After having reached the date thebattery has to be replaced if needed.

Operation testCheck the changeover heating/cooling metersafter installation for any error code (installation

error); errors see table for error codes Most of theerrors can be deleted by pressing the button.If the error appears permanently, it will be detected

at the next measuring cycle and displayed again .Check weather the volume information is updat-ed and the displayed temperatures correspondto the present ones while the system is running(measuring cycle 2 minutes max.).When attaching the top cover on the housingpulses on the inputs can possibly be generated.Check readings of the inputs and correct if ne-cessary.

SealingSeal the device with the included seals to pre-vent unauthorized opening.

MaintenanceRepairs or overhaul are only allowed by themanufacturer or companies authorized by themanufacturer.

Care instructionsClean plastic surfaces with a damp cloth only.Do not use any scouring or aggressive cleaningThe device is maintenance-free duringthe service life.

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Status display / Error codes

The symbols in the table below show the meters operational status. The status messages only appear

in the main display (energy)! The temporary display of the warning triangle can be caused by specialoperating states and does not always mean that the device is malfunctioning. However, should the symbolbe 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 errorcodes 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 Event

1 Short-circuit return sensor Check sensors, replace if needed2 Interruption return sensor Check sensors, replace if needed

3 Short-circuit supply sensor Check sensors, replace if needed

4 Interruption supply sensor Check sensors, replace if needed

5 Hardware error Exchange device

6 Battery empty or wrong temp. sensor Check device / sensor

7 Temperatures out of measuring range Correction heating system

100 Emergency operation Exchange device

1000 Battery life time exceeded Exchange device2000 Initial veri cation expired Exchange device

> 8000 Internal hardware error Exchange device

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Level 1 Level 2

You can switch levels atany point in the menu.

seepage 12

Energy at SRD

SRD

SRD value counter 1

SRD value counter 2

Energy consumption current month i

li

iInput 1 current monthly consumption

Input 2 current monthly consumption

Serial number

Customer number

Serial number input 1

Serial number input 2

Pulse value counter 1

Pulse value counter 2

Energy (main display)

Cooling Energy

Volume

Volume counter 1

Volume counter 2

Segment test

Supply temperature

Return temperature

Temperature difference

Flow

Instantaneous power

Maximum ow, Average value perhour since commissioning

Maximum power, Average valuesince commissioning

Cooling energy at SRD

Cooling energy consumptioncurrent month

SS

Date month maximum ow

Monthly loggerMaximum ow and powerMaximum 10 previous month values

Average value per hourmaximum ow

Date month maximum power Average value per hourmaximum power

H H

L

L

H

H

L

L

H

H

S

S

S

S

L

L

L

L

i

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