ZENNER MULTIDATA WR3 User Manual

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EnergyMetering

multidata

Installation and operating manual

Electronic energy calculator for heat meters with 2 inputs/outputs optionally with M-Bus, RS-232 and RS-485

All that counts.

General information

With 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 setting of

the data loggers (depending on the type of de-

vice) is being done via the software GMM.

The calculator is equipped with a long-life battery

made for operation during the initial verication

validity period (5 years) including a reserve of at

least another year. With a second battery you will

reach 11 years.

Initial veriﬁcation

multidata is produced and tested in compliance

with the new European measuring instruments

directive (MID). According to this directive, de-

vices do no longer carry an initial verication

stamp, but rather the year of the device’s decla-

ration of conformity (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 rst putting

into use. After this, the national regulations for

devices subject to legal verication apply within

the EU.

Technical data multidata

Temperature range

Temperaturdifferenz k 3 - 120

Display Multifunctional LCD, 8-digit, oating

Display unit

Interface ow sensor

Temperature sensor connection

Max. cable length 2-wire

Max. cable length 4-wire

Interfaces

Ambient temperature

Power supply

Battery lifetime

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

Mechanical/electro-magnetic class

Accuracy class according to EN1434

Measuring cycle dynamic

°C 1 - 150

MWh, kWh, GJ, MJ

Models with contact pulsers or active pulser

(no Namur or Opto),

passive max. 1Hz / active max. 100 Hz

PT500, optional PT100, PT1000

12,5 m (PT500), 2,5 m (PT100), 20 m (PT1000)

20 m

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

remote readout outputs

°C 5 - 55

Battery 3.6 V Lithium,

optionally mains power supply 230V/24V

6 years, optionally 11 years

M1/E1

40s/30s/10s

GND

pulse

VCC 2,5 … 3,6 V

Uhigh = 2,5 … 3,6 V Ulow = 0 … 0,3 V

52/ 54

GND

pulse

VCC 2,5 … 3,6 V

53/ 55

Uhigh = 2,5 … 3,6 V Ulow = 0 … 0,3 V

pulse

GND

pulse

VCC 2,5 … 3,6 V

pulse

52/ 54

GND

pulse

VCC 2,5 … 3,6 V

53/ 55

52/ 54

53/ 55

Uhigh = 2,5 … 3,6 V Ulow = 0 … 0,3 V

pulse

52/ 54

GND

pulse

VCC 2,5 … 3,6 V

U = 3 … 30 V Imax = 20 mA

53/ 55

52/ 54

53/ 55

52/ 54

Uhigh = 2,5 … 3,6 V Ulow = 0 … 0,3 V

The duration of initial verication validity in Germany

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.

Technical data ﬂow sensor input

Flow sensor input

Electrical connection Schematic diagram Connection data

Passive with

mechanical

contact (Reed)

Passive with

open drain FET

Active f.ex. with

C-MOS Gate

Technical data additional inputs

Electrical connection Schematic diagram Connection data

Passive with

mechanical

contact (Reed)

Passive with

open drain FET

Connection data outputs

Ext. Voltage 3V … 30 V DC Max. current 20 mA

Output frequency 1 Hz (8 Hz dynamically switching, if output with 1 Hz is not possible) Switching times: 1 Hz: 400ms < tp < 600 ms 8 Hz: 50ms < tp < 80 ms

Uhigh = 2,5 … 3,6 V Ulow = 0 … 0,3 V

52/ 54

53/ 55

52/ 54

53/ 55

Electro-magnetic interference

multidata fulls the national and international

requirements for interference resistance. To

avoid malfunctions due to other interferences,

do not install uorescent lamps, switch cabinets

1 Hz Version: fmax = 1 Hz, Pulse-duty factor 1:1 to 1:9 Input capacitance: approx. 10 nF, Input resistance approx 850 kOhm

100 Hz Version: not allowed

1 Hz Version: fmax = 1 Hz, Pulse-duty factor 1:1 to 1:9 Input

pulse

VCC 2,5 … 3,6 V

pulse

capacitance: approx. 10 nF, Input resistance approx 850 kOhm 100 Hz Version: fmax = 30 Hz, Pulse-duty factor 1:1, Input capacitance: approx. 2,5 nF, Input resistance approx. 850 kOhm

1 Hz Version: fmax = 1 Hz, Pulse-duty factor 1:1 to 1:9 Uhigh = 2,5 … 3,6V, Ulow = 0 … 0,3 V, Input capacitance:

pulse

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

GND

approx. 2,5 nF, Input resistance approx. 850 kOhm

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

Typical connection

52/ 54

53/ 55

U = 3 … 30 V Imax = 20 mA

GND

Connector pin assignment

or electric devices such as motors or pumps in

the immediate vicinity of the meter (minimum

distance 1 m). Cables leaving the meter should

not be laid parallel to live cables (230V, minimum

distance 0.2 m).

Declaration of Conformity

ZENNER International GmbH & Co. KG declares

that this product with the number of the EC type-

examination certicate DE-08-MI004-PTB012

complies with the requirements of the EC direc-

tives 2004/22/EC (Measuring instruments direc-

tive) and 89/336/ EEC (electro-magnetic compa-

tibility).

The most up-to-date information about this pro-

duct and of our installation notice can be found at

www.zenner.com

Temperature sensors

2-wire measurement

Supply 1 - 2

Return 3 - 4

4-wire measurement (optionally)

Supply 1 - 2 / 5 - 6

Return 3 - 4 / 7 - 8

Flow sensor

Flow sensor pulse 10

GND 11

Input/Output

I/O 1 pulse 52

GND 53

I/O 2 pulse 54

GND 55

Depending on the meter’s mo-

del the version of the connec-

tion board can differ.

M-Bus

M-Bus L1 24

L2 25

RS-232

DTR 71

GND 72

Tx 73

Rx 74

RS-485

+UB 71

GND 72

A 73

B 74

Switch Connection 2-wire Connection 4-wire

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

Communication

If 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 connecting to a

BMS.

The connectors are given twice for the incoming

and outgoing of the M-bus wire.

Height: H = 106 mm

Width: B = 126 mm

Depth: T = 54 mm

At calculators with two pulse outputs typically the

rst output (I/O1) gives the energy and the sec-

ond (I/O2) the volume information.

The pulse value is permanently set and corre-

sponds to the last position of the associated dis-

play 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).

M-Bus (optional)

The optional M-Bus interface complies with the

norm EN 1434-3 and operates with 2400 baud

xed. It can be set to 300/9600 baud if neces-

sary.

The display resolution shall be selected such that

the display can not run over within a period of

one year.

Installation instructions

Safety instructions

The installation has to be done by qualied 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 verication directive).

At devices with communication interfaces or

mains supply the general technical rules and the

correspondent regulations have to be followed.

While demounting ow 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 interfe-

rences do not install uorescent 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 nished,

■ the ambient temperature must not exceed

55°C,

■ 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.

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

rst, ow sensor afterwards!

multidata is delivered ready for operation.

It does not need any settings or adjustings.

ZENNER International GmbH & Co. KG

Römerstadt 6 D-66121 Saarbrücken

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

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

Subject to modications and errors excepted. Any liability for misprints excluded. SAP120966_150622_EN

Installation heat calculator

ZENNER recommends to mount the calculator

on the wall. Do not mount the device at the pipe

or 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 wall

mounting.

For wall mounting detach the adapter and turn it

180°, attach 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 sensors

The 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 immersion sleeves has to be

done according to DIN EN 1434-2.

■ The sensor cables are marked with colors (red

= supply, blue = return).

■ Do not buckle, extend or shorten the wires!

■ Do only use paired sensors with the same se-

rial 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, 12.5 m for PT500

and 20.0 m for PT1000.

■ 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 ow 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.

Switch 2-/4-wire

Calculators 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.

Rail mounting Wall mounting

Connection ﬂow sensor

The total length of the wire between ow sensor

and calculator should not exceed 10 m.

With mechanical ow sensors the connection

order is optional. Mind the polarity at electronic

ow sensors.

External power supply

A 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 test

Check 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 perma-

nently, it will be detected at the next measuring

cycle and displayed again. Check weather the

volume information is updated and the displayed

temperatures correspond 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 ne-

ces sary.

Care instructions

Clean plastic surfaces with a damp cloth only.

Do not use any scouring or aggressive cleaning

agents! The device is maintenance-free during

the service life.

Sealing

Seal the device with the included seals to pre-

vent unauthorized opening.

Maintenance

Repairs or overhaul are only allowed by the

manufacturer or companies authorized by the

manufacturer.

Status display / Error codes

The 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 symbol

be displayed over a longer period of time you should contact the service company.

Symbol Status Maßnahme

Flow existent

Attention! Check system / device for errors

Data transmission

Emergency operation Exchange device

External power supply

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.

Code Error Event

1 Short-circuit return sensor

2 Interruption return sensor

3 Short-circuit supply sensor

4 Interruption supply sensor

5 Hardware error Exchange device

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

100 Emergency operation Exchange device

1000 Battery life time exceeded Exchange device

2000 Initial verication expired Exchange device

> 8000 Internal hardware error Exchange device

Temperatures out of measuring range

Check sensors, replace if needed

Correction heating system

Level 1 Level 2

Date month heating energy

Date month input 1

Date month input 2

Monthly logger meter reading Maximum 24 previous month values

Energy (main display)

Volume

Volume counter 1

Volume counter 2

Segment test

Supply temperature

Return temperature

Temperature difference

Flow

Maximum ﬂow, Average value per hour since commissioning

Instantaneous power

Maximum power, Average value since commissioning

H H

You can switch levels at any point in the menu.

Energy at SRD

SRD

Pulse value counter 1

Pulse value counter 2

SRD value counter 1

SRD value counter 2

Energy consumption current month

Input 1 current monthly consumption

Input 2 current monthly consumption

Serial number

Monthly logger Maximum ﬂow and power Maximum 10 previous month values

Date month maximum ﬂow

Date month maximum power

Average value per hour maximum ﬂow

Average value per hour maximum power

Customer number

Serial number input 1

Serial number input 2

Level 3

Sensor type and installation point

Pulse value

Basic conﬁguration

Model number

End of Battery lifetime

Time

Date

M-bus address

Baud rate

Input display

Error status

Software version

Reading residual energy

Sensor type and installation point

Pulse value

Back to

Level 1

Monthly logger meter reading Maximum 24 previous month values

Date month heating energy

Date month input 1

Date month input 2

Monthly value heating energy

1. Monthly value input 1

2. Monthly value input 2

Note

Depending on your multidata

model its displays can differ in

number and order from those

shown here.

Basic conﬁguration

Model number

End of Battery lifetime

Time

Date

M-bus address

Baud rate

Reading residual energy

Input display

Error status

Software version

Legend

Press the button briey (S),

to switch through the display

from top to bottom.

When having 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)

until the device switches to

another level or switches

back from the sub-menu.

Disposal

Attention: This device contains a non-remova-

ble and non-rechargeable lithium battery.

Batteries contain substances, which could harm

the environment and might endanger human

health if not disposed of properly.

To reduce the disposal quantity so as unavoid-

able pollutants from electrical and electronic

equipment in waste, old equipment should be

reused prior or materials recycled or reused as

another form.

This is only possible if old equipment, which con-

tains batteries or other accessories are disposed.

Therefore please contact the department of your

local authority which is responsible for waste

disposal. Alternatively a waste disposal via

ZENNER is possible.

Your local or municipal authority or the local

waste disposal company can give you informa-

tion relating the collection points for your used

equipments.

Attention:

Do not dispose of the devices with domestic

waste.

In this way, you will help to protect natural re-

sources and to promote the sustainable reuse

of material resources.

For any question, please contact

info@zenner.com

The most up-to-date information about this prod-

uct and of our installation notice can be found at

www.zenner.com

dtpwork design

Grafik, Design, Webdesign, Layout, DTP, Reinzeichnung und Produktion An der Sonnhalde 18 79336 Herbolzheim

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ZENNER MULTIDATA WR3 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual