Electronic devices for distribution of thermal energy INDIV-5, INDIV-5R, INDIV-5R-1 are designed for measuring the temperature of a heat-receiving metal plate fixed to the surface heating device and presenting the measurement result on an accrual basis in the form of a time integral (formula /1/), proportional to the thermal energy supplied by the heating device.

Description

The operating principle of electronic devices for distributing thermal energy INDIV-5, INDIV-5R, INDIV-5R-1 is based on measuring the temperature tm of a heat-receiving metal plate fixed to the surface of the heating device. The measured temperature is used to calculate the temperature difference At =(tm - 20) °C and calculate the time integral. The device displays the resulting dimensionless integral value, on the basis of which the relative share of heat transfer from a given heating device in a collective heating system can be calculated. Electronic devices for distribution of thermal energy INDIV-5, INDIV-5R, INDIV-5R-1 are shown in Figure 1. All modifications have an identical appearance.

Picture 1.

The design of devices for distributing thermal energy electronic INDIV-5, INDIV-5R, INDIV-5R-1 is a non-separable plastic housing with a transparent display window on the front wall. The temperature sensor is located either inside the housing next to back wall and connected to a heat conductor, pressed during installation to the heat-receiving metal plate made of aluminum alloy, or on the fastening washer of an external cable 1.5 or 2.5 m long. The heat-receiving metal plate is equipped with holes for fastening to the surface of the heating device. The INDIV-5R and INDIV-5R-1 versions have a built-in radio module (transmitter) for transmitting recorded data to the system radio network via unidirectional radio communication (wireless M-Bus compatible with EN 13757-3 and EN 13757-4 standards). The INDIV-5R and INDIV-5R-1 versions differ in the composition of the installation kit.

Electronic devices for distribution of thermal energy INDIV-5, INDIV-5R, INDIV-5R-1 include a power source and a microprocessor with a quartz oscillator that measures the resistance of the temperature sensor, the necessary calculations and control of the alphanumeric liquid crystal display.

Indication of devices for electronic thermal energy distribution INDIV-5,

INDIV-5R, INDIV-5R-1 is formed in accordance with the algorithm:

rt(t) - 20 li5

and if t< tz то R = 0.

where tz is the starting temperature - the temperature above which the integration process begins, °C,

R - rate of increase of the displayed count, 1/h

Time in hours.

For fixing electronic devices for distribution of thermal energy INDIV-5, INDIV-5R, INDIV-5R-1 with an internal thermometer on heating devices various designs specialized installation kits. During installation, the housing is fixed on a heat-receiving metal plate with a special latch seal, which prevents unauthorized access to the distributor parts and fastening elements. The washer of the remote thermometer is attached to the heating device with a screw and closed with a protective cover, and the housing is installed on the wall of the room.

The device display in measurement mode automatically changes readings and displays the following values ​​(the duration of the indication in seconds is indicated in brackets):

Current slew rate of displayed count (2 s)

Display check (all inclusive) (0.5 sec)

Display check (all off) (0.5 sec)

Date (2 s)

Integral value for the current date (flashing) (5 s)

Checksum (2 s)

Verification coefficient (1 s)

Information about the presence and type of radio channel, the algorithm used and the type of sensor (built-in or remote).

Depending on the type of operation, the display also shows various special indications that indicate certain device states, including error codes.

Devices INDIV-5, INDIV-5R, INDIV-5R-1 can be used with the following types of heating devices:

Plate radiators;

Tubular radiators;

Panel radiators with horizontal and vertical water flow;

Radiators with internal dampers in the pipe;

Convectors.

Software

Internal (built-in) software(software) is installed during the manufacture of the device and cannot be read or modified.

Table 1

if t > tz then R =

The checksum of the executable code is available only to the manufacturer.

Level of firmware protection against unintentional and intentional changes

And according to MI 3286-2010.

External software installed on a PC is not metrologically significant and is intended for data visualization, storage and processing.

Specifications

Metrological and specifications devices INDIV-5, INDIV-5R, INDIV-5R-1 are shown in Table 2.

table 2

Type approval mark

The type approval mark is printed on the passport and the title page of the operating manual, as well as by offset printing on the body of the INDIV-5, INDIV-5R, INDIV-5R-1 device.

Completeness

The complete set of the measuring instrument is shown in Table 3. Table 3

Verification

is carried out according to the methodology given in section 9 “Verification” of the document “Electronic devices for distribution of thermal energy INDIV-5, INDIV-5R, INDIV-5R-1. Operating manual", approved by the State Central Inspection Center of the Federal Budgetary Institution "Rostest - Moscow" on July 12, 2012.

Basic means of verification:

Climate chamber. Temperature range from 15 to 80 °C; instability of temperature maintenance ± 0.5 °C;

Platinum resistance thermometer vibration-resistant standard PTSV 3rd category; Multichannel precision temperature meter MIT 8.10, At= ± (0.0035 + 10-5 t) °С

Information about measurement methods

Information on measurement methods is contained in the document “Electronic devices for distribution of thermal energy INDIV-5, INDIV-5R, INDIV-5R-1. Manual".

Regulatory and technical documents establishing requirements for devices for electronic thermal energy distribution INDIV-5, INDIV-5R, INDIV-5R-1

1 GOST R 52931-2008 “Instruments for monitoring and regulating technological processes. General technical conditions."

2 Technical documentation of the manufacturer Danfoss GmbH, Germany.

when carrying out trade and commodity exchange operations

You can order radiator heat meters (distributors) from the TEPLOSTOK company. We are pleased to offer products of the famous INDIV brand, as well as all the necessary components for it on favorable terms.

Relevance of using the presented models

Individual heat metering allows you to save thermal energy and pay for it in accordance with actual consumption. In systems with vertical wiring, radiator counter-distributors are used.

The models presented in our assortment meet all established requirements and have a calibration interval of 10 years.

Main models of heat spreaders

1. Versions INDIV-3 and INDIV-3R. These distributors have one built-in temperature sensor. Such devices use the principle of accumulating the resulting reading over time at a rate that is determined by the output signal of the built-in sensor.
2. Versions INDIV-3R2 and INDIV-3RD. These models have 2 temperature sensors (heater surface and ambient air). In the INDIV-3R2 distributor both sensors are built into the housing. In the NDIV-3RD device, the air temperature sensor is built-in, and the surface sensor of the heating device is remote.

All types of distributors allow you to store and display the resulting reading on a preset day of the year. The devices are used in internal heating systems.

Any distributor can be installed on:

1. Sectional radiator made of cast steel or cast iron.
2. Aluminum radiator.
3. Tubular and panel radiators.
4. Pipe registers.
5. Convectors.

The heat distributor solves the following problems:

1. Accumulation of consumption readings.
2. Indication of consumption readings for the previous year.
3. Checksum indication for verification.

In addition, the distributor is equipped with a self-testing system.

Technical characteristics of INDIV-3:

1. Range of design temperatures in heat supply systems: 55-105 degrees Celsius.
2. Starting reference temperature: June-August: 40 degrees Celsius, September-May: 30 degrees Celsius.
3. Power supply for heat distributors: lithium battery.
4. Dimensions: 40x76x25 mm.
5. Distributor measurement accuracy: complies with European standard EN834.

Advantages of ordering heat distribution meters from our company

1. Wide range of models. You can order a heat distributor of both the previous and the latest generation.
2. Optimal cost. You can order any distributor model at a favorable price with a discount. We offer wholesale and regular customers participation in special promotions.
3. Help with choosing. Our specialists are ready to talk about all heat distributors and answer your questions.
4. Sufficient warehouse stock of products. You can order heat distribution meters from us in any required quantity without a long wait for deliveries from the manufacturer.
5. Prompt delivery. You can start using any distributor in the near future. Transportation of heat meters-distributors is carried out by the company’s own transport throughout Moscow and to the regions.

Contact us! Control heat in a modern way and reduce costs.

Code number	Description	Price (Euro)	Sketch
088H2330	Radiator meter-distributor in a compact design INDIV-5 with visual reading from the LCD display	30,83
088H2203	Radiator meter-distributor in a compact design INDIV-3R with remote wireless data transmission (radio)	43,39

New generation radiator meter-distributor INDIV

Code number	Description	Price (Euro)	Sketch
187F0001	The radiator meter-distributor in a compact design with an LCD display replaced the INDIV-5	43,39

Code number	Description	Price (Euro)	Sketch
088H2250	Dual-channel pulse adapter INDIV PAD for connecting 2 meters (water, electricity, gas) with pulse output	74,79
088H2251	Network node, standard with independent power supply NNB-Std	306,28
088H2257	Network node with communication module for remote reading with GSM interface NNV-GSM (mains powered)	1595,22
088H2254	Network node with communication module for remote reading with RS232 interface NNV-232 (mains power supply)	459,42
088H2256	Network node with communication module for remote reading with NNV-IP Ethernet interface (mains powered)	1512,26

Accessories for radio system setup and readings

Radio software

Kit for mounting a meter-distributor on cast iron sectional radiators

The gap between sections is no more than 34 mm

Code number	Description	Price (Euro)	Sketch
088H2211		1,32
088H2230	T-nut, 65 mm	0,85
	Bolt M 4 x 35 mm
Cost of the set

The gap between sections is more than 34 mm

Code number	Description	Price (Euro)	Sketch
088H2212	Thermal adapter, standard, 55 mm	1,32
088H2230	T-nut, 65 mm	0,85
	Bolt M 4 x 35 mm
Cost of the set

Kit for mounting the meter-distributor on panel radiators

Code number	Description	Price (Euro)	Sketch
088H2211	Thermal adapter, standard, 40 mm	1,32
	Tail nut M 3 x 6 mm (requires ordering 2 pieces per meter)
	Welded bolt M 3 x 10 mm (requires ordering 2 pieces per meter)
Cost of the set

Kit for mounting the meter-distributor on convectors

Installation on “fins” (convectors “Universal”, “Santekhprom-Avto”, KV)

Code number	Description	Price (Euro)	Sketch
088H2211	Thermal adapter, standard, 40 mm	1,32
088H2270	Threaded rod M 3 x 330 mm	2,81
	Castle nut M 3 mm (requires ordering 2 pieces per meter)
Cost of the set

Installation on a “kalach” (convectors “Accord”, “Comfort”, “Progress”)

Code number	Description	Price (Euro)	Sketch
088H2211	Thermal adapter, standard, 40 mm	1,32
	Tail nut M 3 x 6 mm (requires ordering 2 pieces per meter)
	Welding bolt M 3 x 10 mm (requires ordering 2 pieces per 1 meter)
Cost of the set

Kit for mounting the meter-distributor on tubular radiators

Code number	Description	Price (Euro)	Sketch
088H2211	Thermal adapter, standard, 40 mm	1,32
088H2241 or 088H2242	T-nut, 36mm or 45mm	6,96
	Bolt M 4 x 35 mm
Cost of the set

Kit for mounting a meter-distributor on aluminum radiators

The gap between sections is no more than 4 mm

Code number	Description	Price (Euro)	Sketch
088H2211	Thermal adapter, standard, 40 mm	1,32
	Self-tapping bolt C 4.2 x 25 mm (requires ordering 2 pieces per meter)
Cost of the set

The gap between sections is more than 4 mm

Code number	Description	Price (Euro)	Sketch
088H2211	Thermal adapter, standard, 40 mm	1,32
	Square studs (need to order 2 pieces per counter)
	Screw M 3 x 25 mm (requires ordering 2 pieces per meter)
Cost of the set

Optional equipment

Heat distributors are still not very common in our country, although in Europe they have been used on an industrial scale since the 70s, and the number of installed heat distributors amounts to tens of millions. We do not yet produce these devices, although we already have experience in using them.

Operating principle of distributors.

The photo shows a thermostatic regulator and a radiator installed in the apartment. The distributor measures the temperature of the radiator surface at one specific point every 3-4 minutes and records the temperature difference between the radiator surface and the air in the room into a non-volatile memory. The resulting heat corresponds to the amount of heat given off by the radiator over the past period, measured in conventional units. Precisely conditional, the readings of the heat distributor are multiplied by radiator coefficient, corresponding to the given type and size of the heating device.

At the same temperature on the surface of a large and small radiator and at the same temperature in the room, the readings of the distributors will be the same, but the large radiator will give off more heat? To take this situation into account, the radiator coefficient is used. Each manufacturer has tables of radiator coefficients for its devices for all types of radiators produced. Radiator coefficient tables are included in computer programs for recalculating payments, and the coefficients are automatically taken into account when calculating.

But what about our homemade radiators or battery assemblies, when residents independently add sections to an existing radiator, while some of them practically do not heat. There is only one conclusion: you will have to get rid of homemade products.

Cost of heat distributor and calculation for heat.

The cost of a heat distributor is approximately 10 times less than the cost of a residential heat meter. The distributors can be easily installed on any type of heating device. This is the main advantage. Thanks to this, the cost of a set of devices for an apartment is acceptable even if there are several risers in the apartment.

Heat distributors are suitable for all heating systems.

Calculation of payment for heating based on the readings of heat distributors is the distribution of the total amount paid to the heat supplier between individual apartments in proportion to the readings of radiator distributors. At the same time, apartment residents make monthly payments throughout the year at fixed, pre-calculated and approved rates, and settlements with the heat energy supplier are made at

Once or twice a year, readings are taken in apartments, and the total amount is distributed according to the readings received. For each tenant, a balance is displayed between the amount of his payments at preliminary rates and his estimated payment. The amount received goes towards heating payments for the next year.

Thus, if there is any type of individual heat metering devices, heating payments depend on actual heat consumption in apartments.

Finally, let’s compare the costs of installing radiator thermostats and heat distributors.

Equipment and costs, Price per piece (at the rate of 1 $ - 60 rubles)

• Sensor-distributor for individual metering INDIV-3 with visual reading from the LCD display
• Sensor-distributor for individual metering INDIV-3R with remote wireless data transmission (radio)
• Installation of thermostat and sensor-meter
• Annual door-to-door payment services

The table shows the costs for installing radiator thermostats and heat distributors

The calibration interval for heat distributors is 10 years. Residential heat meters – 5 years.

The payback period for installing heat distributors and radiator thermostats for a two-room apartment is 1 year, with a service life of a thermostat of 30 years and a heat distributor of 10 years. For budget-conscious residents, this period will be even shorter.

Remember the basic rules for organizing apartment metering using heat distributors:

• Thermostatic regulators must be installed on heating devices.
• At least 75% of heated rooms in the building must be equipped with thermostats and heat distributors.
• the actual consumption of thermal energy for heating a residential building should be produced by a common house heat meter.
• The housing organization must organize recalculation of payments for residents based on readings from common house and apartment metering devices.

Paramonov Yu.O. LLC enterprise "Energostrom" 2017.

Distributor counter Indiv 5R Danfoss includes a reader unit with an installed radio module that operates at an authorized frequency of 868.95 MHz. This system is used for wireless access to the meter and for remote transmission of accumulated readings to network nodes in INDIV AMR automated radio measurement systems. The distributor device determines the percentage of the total consumed thermal energy of the house, measured through a collective house-wide heat meter, attributable to a specific radiator.

The principle of counting readings is the distribution of house-wide processed thermal energy based on the readings of individual metering devices installed on individual radiators.

The INDIV 5R distributor counter is easy to install due to its compact size and universal mounting. Installed on almost any type of heating systems. Various mounting kits are available for mounting the distributor. During installation, the housing is fixed to the mounting plate of the thermal adapter using a special latch seal, which does not allow unauthorized access to the device and fastening elements.

Collects consumption readings in several stages, starting from the last control date up to the indication of the worked coefficient for the year. Continuously tests to ensure ease of use with storage and reporting of error messages. Displays the checksum indication of the results both current and for a specific day.

The Indiv 5 meter and its improved modification Indiv 5r are radiator distributors that allow you to organize heat metering for each individual apartment. These devices are intended for buildings with vertical heating distribution, that is, for almost all modern multi-storey buildings.

Operating principle

The Indiv 5 heat meter measures and records the temperature difference between the radiator and the air in the room. The temperature sensor is built into the Danfoss Indiv 5 housing. The air temperature is programmed as a constant value of 20° C. Such averaging introduces a certain error in the Danfoss Indiv 5 readings, however, this is not such a serious problem. But the rest of the calculations will be carried out with maximum accuracy, even if the Indiv 5 meter distributor is covered with thermal insulation.

The data is displayed on the LCD screen. Even a person who is far from technology will not have any problems with how to take readings on Indiv 5. The monitor alternately displays:

• up-to-date information;
• data based on the results of the previous time period;
• end date of the current Danfoss Indiv 5r work cycle;
• calibration factor;
• checksum, etc.

All calculations are automatically carried out by AMR software provided to the management company on whose balance sheet the house is located.

Installation

Installing a Danfoss heat meter on a radiator is not very difficult. The device is mounted on the surface of the heating equipment using a mounting kit. It is important to strictly adhere to the Indiv 5 manufacturer's instructions regarding installation rules for specific devices. Sometimes a situation arises when it is not possible to attach the radiator meter distributor Indiv 5 to the surface of the battery. In such cases, you will have to install a remote sensor with a connecting cable and disconnect the built-in one. This solution is usually intended for units with a casing.

The price of the Indiv 5 distributor installed on the meter will not hit your budget too much. However, it is worth purchasing a device only when the housing company has organized the appropriate recalculation based on the readings of individual and general house metering devices. To do this, it is necessary that such regulators and distributors be installed in at least half of the apartments. If you are interested in where to buy Indiv 5r in Moscow and other useful information on equipment, we are waiting for you on our website.