MADDALENA microCLIMA User manual

Energy Meter microCLIMA
Installation and Operating Instructions V. 1.03 October’06
microCLIMA
1
Contents
1 GENERAL INFORMATION
2 MOUNTING THEFLOWSENSOR
3 MOUNTING THETEMPERATURESENSORS
3.1 Installation in a temperature pocket
3.2 Installation in a ball valve
4 START OF OPERATION
5TECHNICALDATA
6 THE DISPLAY SETUP
7 DISPLAYINFORMATION
8 ERROR CODES
9 INTERFACES / OPTIONS
9.1 Infrared
9.2 M-bus
9.3 Contacts
10 MOUNTING WITH WALL SUPPORT
1. GeneralInformation
• The valid standard for theapplication ofheat
metersisEN1434, parts1+6. The regulations
for electrical installationsare to be observed.
• The heat meterleft the factoryin conformance
with all applicable safetyregulations. All main-
tenanceandrepair work isto be carried out
onlybyqualified andauthorized technicalper-
sonnel.
• All details and specificationslisted on the data
sheet of the heat meter must be adhered to.
• The seals and locking wires required for the
verification of the heat meter mustn’tbe dam-
aged or removed – otherwisethe verification
and guarantee of the instrument no longerap-
ply!
• All electrical connectionsmustbe laid at a
minimum distance of 20 cm to sources of
electromagneticinterference(switches,control-
lers, pumps,etc.)In addition, all instrument
connections mustbe laid at a minimumdis-
tance of5 cm to other current-carrying wires.
• The temperature sensor cables mustnot be
kinked, rolled up, lengthened or shortened.
• To protectagainstdamage and dirt theheat
meter should onlybe removed fromthe packag-
ing directlybefore installation.
• To clean theheat meter(onlyif necessary)use
a slightlymoist (not dripping wet!) cloth.
• According to the weightsand measures regula-
tionsonverification, the verification period in
Germanyfor heatmetersis 5 years.
• If several heatmetersare installed in one unit,
care must be taken to ensure that all the meters
have the same installation conditions.
• Payattention tothe mounting location of the
heat meter: returnflow pipe unless the optional
forward flow version was ordered.
• In the caseof heat meterswith two declarations
on the identification plate, such as:
Q24l/h ∆T:3-100 K/Q 12l/h ∆T:6-100K
the declaration that isnot valid for the local in-
stallation situation mustbe made unrecogniz-
able. For example, for floor heating:
Q24l/h ∆T:3-100 K/ Q 12l/h ∆T:6-100K
for example, for radiatorheating:
Q24l/h ∆T:3-100 K /Q 12l/h ∆T:6-100K
2. Mounting the FlowSensor
- Closeshut-off valves
- Unscrewthe union nut (coupling ring)
- Remove old gaskets
- Clean the sealing surfaces
- Insert new gasket
- Lubricate the external thread of the flow sensor
with a thin layerof silicone grease
- Position the flowsensor correctly, taking into
account the direction of flow
- Tighten the union nut (coupling ring)
- Rotate the calculator into the correct reading
position
Note:
In order to simplifymounting in anarrow installa-
tion space the calculator can be removed from the
flow sensor. To separate the calculator press on
the sidesurfaces shown in the illustration and
carefullylift off the top part of the housing.

Energy Meter microCLIMA
Installation and Operating Instructions V. 1.03 October’06
microCLIMA
2
3. Mounting theTemperatureSensors
3.1. Installation in temperaturepocket
- PlacetheO-ring in themiddle
groove. Slide the sealing
screw nut upto the O-ring.
- Holding the screw nut in
place,insertthe sensor into
the ball valve and tighten the
screw nut.
3.2. Installation in a ballvalve
- Removethe blind cap orplug
and itsgasket. Checkthat all
surfacesare clean.
- PlacetheO-ring in the groove
closest to the tip ofthe
sensor. Slide the sealing
screw nut upto the O-ring.
- Holding the screw nut in
place,insertthe sensor into
the ball valve and tighten the
screw nut.
4. Start of Operation
- Slowlyopen the shut-off valves
- Checkfor leakage and proper functioning
- Clean the calculator
After confirming that the heat meter is functioning
properly,insert and tighten the sealing wires for
the temperature sensors and the heat meter itself.
When replacing ameter at the end of averification
periodnote the meter readings and the serial
numbersof the old andnew meters.
Please also checkthe following points:
• Is the heat meter the appropriate size?
• Is the heating system in operation?
• Are the shut-off valves open?
• Is the heating system clear(dirtfiltersnot
clogged)?
• Arethe temperaturesensorssealed with
wires(to avoid tampering)?
• Is the directionalarrow on the flow sensor
in the correct direction?
• Is a flow volume displayed?
• Is aplausible temperature difference dis-
played?
• For instrumentswith twoexternal temp-
eraturesensors, isthe forward flow sensor
(red) in the forward flow and the returnflow
sensor(blue)in return flowpipe?
• For instrumentswith abuilt-in return flow
temperaturesensor, is the flow sensor
mounted in thereturn flow?
5. TechnicalData
Type 0.6 1.5 2.5
Flow sensor
Nominal flow m3/h 0.6 1.5 2.5
Maximum flow m3/h 1.2 3.0 5.0
Nominalpressure bar 10
Low flow horizontal
threshold vertical l/h 3.5 4 7 7 10 10
Temperature range °C 15…90
Mounting position any
Calculator
Ambient temperature °C 5…55
Temperature range °C 1…130
Temperature difference K 3…100
Powersupply 3 V, Lithium
Operating life Years
6+ 1
(10+ 1 optional)
Datastorage E²PROM, daily
Display 8-digit
Infrared
M-bus (optional)
Interfaces
Pulse output
(optional)
Temperaturesensors
Type Platinum precision
resistor
Connection 2-wire technique
Diameter mm 5.0(optional 5.2)
Cable length m 1.5(optional 3.0)
6. The DisplaySet-up
The calculatorhasaliquid crystal displaywith8
digitsand special characters.The valuesthatcan
be shown are divided into three displayloops.
• main loop
• technician’s loop
• statistics loop
All dataisretrieved using the keynextto thedis-
play.The standard displayhasbeen set to perma-
nentlyshowthe totalheat quantityconsumed since
the meter wasput into operation.
At the start you areautomaticallyin the main loop.
Bypressingthe keylonger than 4seconds you
change to the next loop. Keep the keypressed
until youreach the desired information loop.
To change the informationdisplaywithin a loop,
simplygive ashort pressto the key.In thisway,
you can scan all the information in the loop.
Afteroneminuteof non-use, the displayreturns to
the total heat quantity, the standard display.

Energy Meter microCLIMA
Installation and Operating Instructions V. 1.03 October’06
microCLIMA
3
7. Display Information
1. Level /Main Loop
1) Total heat quantity inMWh –
standard display
2) Segment test, allsegments
triggeredsimultaneously.
3) Heat quantity at last reading date
alternatingwith last readingdate*
3) Last readingdate alternating with
heat quantity at last reading date*
4) Total volumesinceinstallation in
m³
5) Current power inkW
6) Current flowin m³/h
7) Current date
8) Error message(alternating binary
and hexadecimal display)
2. Level /Technician’s Loop
1) Maximum power in kW
2) Maximum flow inm³/h
3) Forward flowtemperature in°C
4) Return flowtemperature in °C
5) Temperature difference
6) Days in operation since ver-
ification
7) Pulsevalue; pulses per liter
8) M-bus address
9) Serial number of theheat meter
10) Firmware / softwareversion
3. Level:Statistics Loop
1) Heat quantity at next-to-last
reading date alternating with that
reading date
2-16) 15 monthly reading values
alternating with the corresponding
reading dates*
*Up to theend of themonth the consumptionand reading datefor that month will be shown as 0.

Compact SingleJet Heat Meter microCLIMA
Installation and Operating Instructions
microCLIMA
4
8. Error Codes
When the instrument detectsan
error, the standarddisplaychanges
to include the errorsymbol and error
numberalternating with the regularstandard
display,totalheat quantity.There areseven
possible causes of error,and theycan appear in
combination with each other,depending on the
situation.
The occurring error is shownon the LCD in the
format“Err xx”. The “xx”stands for the error no.,
shown in hexadecimal form.
For example, Err 08 -> scanning coil fault
Error Code
leftdigit right digit
error code (hexadecimal) check sum fault E²PROM fault reset error code (hexadecimal) scanning coil fault ref-sensor fault rf-sensor fault ff-sensor fault
1x X x1 X
2x X x2 X
3x X X x3 X X
4x X x4 X
5x X X x5 X X
6x X X x6 X X
7x X X X x7 X X X
8x x8 X
9x X x9 X X
Ax X xA X X
Bx X X xB X X X
Cx X xC X X
Dx X X xD X X X
Ex X X xE X X X
Fx X X X xF X X X X
Error description
Error Description Effect Possible cause
ff-sensor
fault The forward flow tempera- ture sensor isdefective. No calculationsare carried out.
The registersfor flowand energy
are notbeing updated (no new
data is being stored).
Sensor cablesevered; sensor
cable shorted out.
rf-sensor
fault The return flowtemperature sensor is defective. No calculationsare carried out.
The registersfor flowand energy
are notbeing updated (no new
data is being stored).
Sensor cablesevered; sensor
cable shorted out.
ref-sensor
fault Error during the reference measurement. No calculationsare carried out.
The registersfor flowand energy
are notbeing updated (no new
data is being stored).
Adefect on the calculator
circuit board.
coil fault The scanning is not func-
tioning properly. No calculationsare carried out.
The registersfor flowand energy
are notbeing updated (no new
data is being stored).
Coil shorted out; connecting
cable between calculatorhous-
ing and flow sensordamaged.
reset The calculatorelectronics
have been reset.
The measurementssince the last
storage of data in the E2PROM
are lost (max. one day)
EMC
E²PROM
fault No communication with the E2PROM. Aftera reset, the instrument is without function. Defective component
checksum
fault The configuration of the instrument stored in the
E²PROMis not correct.
No calculationsare carried out.
The registersfor flowand energy
are notbeing updated.
Defective component
When an erroroccurs, with the exception of a reseterror, the instrument mustbe exchanged and sent to the
manufacturer for examination.

Interfaces / Options
microCLIMA
5
9. Interfaces and Options
9.1 Opticalinfrared interface
In order for aPC to be able to communicate with a
microCLIMA instrument,it isnecessaryto con-
nectan optocoupler to the serial interfaceof the
PC. The optocoupler and the necessarysoftware „
microCLIMA-Monitor“ areavailable asoptions.
The optical infrared interface is activated with the
key. If within 60 secondsneither avalid telegram
isreceived nor thekeypressed again, then the
interface is deactivated.
9.2M-bus
AnM-bus interfaceis alsoavailable as abuilt-in
option for the microCLIMA (must be stated
when ordering). Verification-relevant valuesand
measurementdata can not be altered using this
port.
Protocol according to EN1434-3 and the M-bus
Recommendation (version 4.8 from Nov.1997)
with the basicstandardIEC 870 parts 1, 2 and 4.
Baud rate: standard: 2400 Bd.
It is important to note that the topologyof the
M-bus network(lengthsof connecting cables,
cable cross-sections)mustcorrespond to the
baud rate of the terminal instruments, in this case,
the heat meters.
During communication overthe M-bus with an
addressed heatmeterit is not possible to usethe
other instrument interfaces (the key,optical inter-
face), and vice versa.
Note: The heat metersare supplied byabattery,
for this reason the number of requestsfor each
instrument is limited:
In amaximum-sized M-busnetworkof 250 slaves
(heat meters), 24requestsperdayarepossible
for eachmeter. Iffewerrequestsaremade and/or
fewer heatmetersareconnected to the bus, the
unused amount of available requests arestored in
the instrument.
The lifetime of the batterydepends on the amount
of communication carried out, but at the baud rate
setatthe factory,the lifetime is at least 6years
plus one yearstorage.
9.3 Contact output (potential-free)
Thepotential-free contactavailable asabuilt-
in option (state when ordering) is an electronic
switch forflexibleuse(class A0 accordingto
EN1434), which outputs the counting pulsesof
the heat meter.The pulseoutput closes, corre-
sponding to the pulse value of the flowsensor
(see the identificationplate on the instrument)
for aduration of 125 ms. Ifseveralpulsesare
output during ameasurement, the intervalbe-
tweentwo pulses is likewise 125ms. As long
asthenominalandboundaryvalues ofthe
contact are taken into consideration, the user is
free to define his contactdata within awide
range. Awidevarietyof data acquisitionin-
struments can beconnected tothe contact
outputs.
Thelifetimeofthebatteryforheatmeters with
potential-freecontactoutputsis at least6years
plus one year storage.
Pulse values:
• Heat:standard: 1kWh/pulse, or optionally
• Volume:standard: 100 l/pulse
Technicaldata:
Max.switching current
300mA∼/-
Max.switching voltage 35 V∼/-
Max. switching power 300 mW
Insulation resistance > 1009 Ohm
Contact resistance max.25 Ohm
Contact capacity max.1.5 pF
Maximum current 120 mA
Dielectric strength
(open contact) 350V∼/-

Mounting with Wall Support
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10. Mounting with Wall Support
Parts included in delivery:
A.Mounting with a sticker pad
1. Press thelocking positions on the side of the
adapterlightlywith one hand while pulling up
the calculator housing with the otherhand.
2. Latch the wall mounting support onto the
instrument. Remove the protective foil from the
sticker pad and pressthe pad firmlyonto the
wall support.
3. Remove the second protectivefoil from the
sticker pad and press the instrument with the
wall mounting support firmlyin place on the
wall.
B. Mounting with dowels
1. Press the locking positions on the side of the
adapter lightlywith one hand while pulling up
the calculatorhousing with the other hand.
2. Drill holesfor the dowels (∅6mm, depth 40
mm). Takeinto account themaximumlength of
the white connecting cable between the flow
sensor and the heat meter.
3. Screw on the wall mounting support.
4. Attach the instrument to the mounting support.
C. Removing the heat meter fromthe mount-
ing support
Pull the instrument upwards and awayfrom the
wall.