measuring consumption systems

Technical Training 2011

The thermal energy is measured in kcal (kWh or MWh)1 kcal = is the energy necessary to raise up

1 °C temperature of 1 kg of water

If we want to bring 50 liters (50 kg) of water from 10 °C temperature to 40 °C, we have

cp x G x Δt = 1 x 50 x 30 = 1500 kcal = 1,74 kWhIt is equal to use one hour radiator of 1500 kcal/h, which is aproximately 0,15 € (for traditional GPL boiler)

The heat Q used it is “counted” by the “heat gauge”

The concept

Fluid: water

Use: Hot and Cold

PlantInlet

Outlet

How to deliver the kit

The Energy Box module is supplied without flow meters and without liters gauges to avoid any theft in the jobsite. The box is in zinc metal with key lock.

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It is necessary to complete it with the DIRECT reading devices or with M-BUS net readers.

Components and operation

The motorized 4 ways valves it is operated by a room thermostat.

When the thermostat give the signal to open the valve, the water enter in the lodging and the calories meters quantify the energie consumption.

The differential by-pass realize the pressure drops as a 4 ways valve completely opened. This in order to stabilize the flow conditions of the centralized plant.The Y filter it is fundamental for the circuit starting for the cleaning of the plant. Might be substituted by a balancing valve (optionl)Successively must be installed the energie meters and calories counters

The heat used in each lodging it is “counted” from the calorie-meter

Plant installation sample Single LodgingEnergy Box

Room Thermostat

It is possible to measure also the thermic energie provided to the boiler or other device.

Plant installation sample

The Range – Preassembled modules without manifolds

The Range - Preassembled modules with ¾” manifolds

The Range – Preassembled modules with 1” manifolds

Single Modules for heating/cooling and Hot Sanitary Water

Accessories for the pre-assembled modules

The balancing valve (optional) must be fitted as Y filter substitution, for a correct tare of the plant.

New Range with compact metal box (only 600 mm)

New Range with compact metal box (only 600 mm)

Under-boiler Kit complete with energie consumption module.

Permits the flow distribution in every lodgings having the MIXING DIRECTLY IN BOX, with possible mixed plant with high/low

temperature.

The balancing valve (included) permits to regulate the flow of water/heat in each lodgings.

Hydraulic scheme

The range

The range

The range

Sanitary Water Underfloor Heating Circuits

Heating

- Distribution module for heating systems with low and high temperature.

- Fixed point regulation for underfloor heating

- Complete with consumption modules for heating and sanitary water

- Complete with 2 ways DN25 Motorized Valve

Cabinet for heating/cooling and hot/cold sanitary water measuring consumption with several users. The cabinets are available up to maximum 4 lodgings or maximum 6 lodgings. The cabinets can be installed built-in or off-track and wall mounted.

The reading consumption of heating (hot/cold water) and sanitary water (hot/cold water) can be done in two ways:

Directly from the display (DIRECT READ)

Sending the data to a central station (M-Bus NET)

The MID DirectiveThe MID Directive

2004/22/CE Directive from the European Parliament and 31 March 2004 council related to the measuring instruments.

• In March of 2004 the European Parliament issued the directive 2004/22/CE (MID).

• The directive is applied to the devicethe device and to system with measuring functions which are defined in the specific attachments, related to water gaugeswater gauges, gas gauges and volume conversion, active electric energy counters and measure transformers, heat gaugesheat gauges, continuous and dynamic flow measuring systems different from water, automatic weight measuring systems, taximeters, dimension measuring systems, exhaust gas measuring gauges.

• The scope of the directive is to protect the final consumer which commercial transactions are connected to this instruments.

2004/22/CE Directive of the European Parliament and 31 March 2004 Council related to the measuring instruments.

• The directive foresee that the manufacturer accredit the counter gauge with a new mark: CE-M (totally different from CE mark).

• The CE-M mark certify the quality, the precision, the conformity of the counter gauge and the minimum parameters that grant the constancy of the precision, etc… protecting the consumers and the commercial deals.

A-MAGNETIC: does not get dirty and keep the precision during the time (minimum duration 10 years).

LITHIUM BATTERIES: non removable

LCD DISPLAY with 8 digits and special characters

Direct reading energy device

Direct reading energy device

Main screen level

Total energy values in MW/h

Reading values (calories and frigories) at certain date

Date

Test of the display

Instantaneous Flow in m3/h

Total volume (in m3) from the installation date

Instantaneous Power in kW

Error code

Direct reading energy device

Technical level

Max Power in kW

Max Flow in m3/h

Inlet Temperature in °C

Serial Number Outlet Temperature in °C

Functioning days from the tare day

Impulse Values per Liters

Difference of the Temperatures

There is a Third Level indicating the main statistics data (i.e. reading of the data of the last 15 months).

Direct Read Volumetric Gauge for Hot Water

Direct Read Volumetric Gauge for Cold Water

Pipe L=110 mm / L=130 mm

Pipe Union Connection Kit

Tee Flow Probe Holder

DEVICESDEVICES

PERIPHERICAL ITEMSPERIPHERICAL ITEMS

1

2

1

3

5

4

6

7

8

7

8

9

1

1

Energy meter for data transmission

LITIUHM BATTERY non removable

DISPLAY: LCD with 8 digits and special characters

CABLE: for the connection to the M-Bus Concentrator

Energy meter for data transmission

A-MAGNETIC: does not get dirty and keep the precision during the time (minimum duration 10 years).

Hot water meter for data transmission

Cold water meter for data transmission

It is necessary for the connection of maximum 2 counter liters to the M-Bus net

Use 2 wires cables

Maximum length: 10 meters

Transform a signal arriving from a counter liters (1 impulse = 10 liters) in a M-Bus signal

To be configured with MBCONF Software and Micro-Master device

Pad A Battery: lasting 18 days/year for 10 years

The battery must be activated !!!

The adaptor must be activated opening the upper part of the terminal cover and positioning the jumper on both pins

It works in case there is a current shot down!

Impulse Adaptor

Energy Gauge (hot water only) for high flow rates with threaded connection and data transmission

Energy Gauge (hot water only) for high flow rates with flanged connection and data transmission

The MICRO-MASTER is necessary, joined with a PC with a USB port, for the correct operation and configuration of the system (assignment of the

primary addresses).

Porbes holder kit

Micro - Master

M-Bus concentrator for 60 devices

CONCENTRATORCONCENTRATOR: collect the datas transmitted from the devices and permits the reading from the LCD display or thanks to a PC (with “serial port” or “serial modem 56K”)

M-Bus concentrator for 20/3 devices

Menu Structure of the Concentrator

Menu Structure of the Concentrator

Standard Modem

Delivered already pre-configurated for the corresponding concetrator.

Transformer 230/24 V 35 VA

Cable for data transmission via M-Bus protocol

Telephone cable TRR 1 + T with 2 unsheathed twisted wires, complete with ground conductor

Kit Modem GSM

The kit is composed of: GSM/GPRS Dual-Band (EGSM900/DCS1800), antenna GSM, power supply unit AC/DC, serrial cable 9 pin RS232 for concentrator connection. Use a SIM Card enabled for DATA traffic (not included)

M-Bus net lenght

The signal must not be distorted.

An important matter is the lenght of the net (The sum of all the cables lenghts).

Lower the reading speed of the data (Baud rate), the longer could be the wiring net.

Baudrate 9600 2400 300

Max net lenght 1 km 4 km 12 km

- Connect the PC to the Micro-Master

- Connect the Micro-Master to the device (Impulses Adaptor or Calories Counter), using the “M-Bus net” contacts still free.

- Using the MBCONF software, assign a 3 digits code to each periferical items (Liters Counter or Calories Counter). This code is the PRIMARY ADDRESS

- The software automatically recognize for each devices the correspondent “serial number” (it is an 8 digit number). This code is the SECONDARY ADDRESS

System Configuration

System Configuration

System Configuration

- Connect the PC to the M-Bus net, without using the Micro-Master

- Using the software FSERVICE find out each devices- Export the data in an excel file

NOTE: the periferical devices transmit the data with a certain speed called BAUD (“changings”/sec). For the searching it is important set up a speed field (baudrate) between 300 and 2400 baud, to have the security to find all the connected devices.

Data Read

Data Reading

System configuration

System configuration

System configuration

System configuration

At each reading of the water counter there are 6 rows associatedData Reading

At each reading of the calories counter there are 24 rows associatedLettura dei dati