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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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11
10
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52/54
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53/55
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11
10
pulse
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pulse
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11
10
GND
pulse
VCC 2,5 3,6 V
I
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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tp tp
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Typical connection
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U = 3 30 VImax = 20 mA
52/54
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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
b j e c t
t o m o
d i c a
t i o n s a n
d e r r o r s e x c e p
t e d
. A n y
l i a b i l i t y f o r m
i s p r i n t s e x c
l u d e
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S A P 1 2 9 3 7 6
_ 1 3 0 8 1 3
_ E N
Rmerstadt 6D-66121 Saarbrcken
Telephone +49 681 99 676-30Telefax +49 681 99 676-3100
E-Mail [email protected] 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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