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 wiring heating, that is, for almost all modern multi-storey buildings.

Operating principle

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

The data is displayed on the LCD screen. With how to take readings of Indiv 5, there will be no problems even for a person who is far from technology. The monitor alternately displays:

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

All calculations are automatically carried out software AMR provided management company, on the balance sheet of which the house is located.

Installing a Danfoss heat meter on a radiator is not very difficult. The device is attached to the surface heating equipment using the 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 fix the radiator meter distributor Indiv 5 on the surface of the battery. In such cases, you will have to install a remote sensor with a connecting cable and turn off the built-in one. This solution is usually intended for units with a casing.

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

Devices for the distribution of thermal energy electronic INDIV-5, INDIV-5R, INDIV-5R-1 are designed to measure the temperature of a heat-receiving metal plate fixed on the surface heater and presenting the result of measurements on a cumulative basis in the form of an integral over time (formula /1/), proportional to the heat energy released by the heater.

Description

The principle of operation of devices for distributing electronic thermal energy INDIV-5, INDIV-5R, INDIV-5R-1 is based on measuring the temperature tm of a heat-receiving metal plate fixed on the surface of the heater. The measured temperature is used to calculate the temperature difference At =(tm - 20) °C and calculate the time integral. The device displays the obtained dimensionless integral value, on the basis of which the relative share of the heat transfer of this heater in the collective heating system can be calculated. Electronic heat distribution devices 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 electronic heat energy INDIV-5, INDIV-5R, INDIV-5R-1 is a non-separable plastic case with transparent window display on the front. The temperature sensor is located either inside the housing near the rear wall and is connected to the heat conductor, which is pressed against the heat-receiving metal plate from aluminum alloy, or on the fastening washer of a remote cable 1.5 or 2.5 m long. The heat-receiving metal plate is provided with holes for fastening to the surface of the heater. Versions INDIV-5R and INDIV-5R-1 have a built-in radio module (transmitter) for transferring recorded data to the system radio network via unidirectional radio communication (wireless M-Bus compatible with EN 13757-3 and EN 13757-4 standards). Versions INDIV-5R and INDIV-5R-1 differ in the composition of the mounting kit.

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

Indication of electronic heat distribution devices 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 - starting temperature - temperature above which the integration process begins, °С,

R - slew rate of displayed reading, 1/h

Time in hours.

For fixing electronic heat distribution devices INDIV-5, INDIV-5R, INDIV-5R-1 with internal thermometer on radiators various designs specialized mounting kits. During installation, the body is fixed on a heat-receiving metal plate with a special seal-latch, which excludes unauthorized access to the distributor's organs and fastening elements. The remote thermometer washer is attached to the heater with a screw and closed with a protective cover, and the housing is installed on the wall of the room.

The display of the device in the measurement mode performs an automatic change of readings and displays the following values ​​(in brackets, the duration of the indication in seconds is indicated):

Current slew rate of displayed sample (2 s)

Display test (all included) (0.5 s)

Display test (all off) (0.5 s)

Date (2 s)

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

Checksum (2 s)

Verification factor (1 s)

Information about the presence and type of the 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 heaters:

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 and modified.

Table 1

if t > tz then R =

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

Firmware protection level against unintentional and intentional modifications

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

Characteristic	Characteristic value
Heater temperature range (temperature at the installation point)	30 to 105 °C
Start temperature tz	40 °С - June, July and August 30 °С - in all other months of the year
Limits of permissible relative measurement error, %	at 5 °C< At <10 °C 12 %
	at 10 °С< At <15 °C 8 %
	at 15 °С< At <40 °C 5 %
	at 40 °С< At 3 %
Weight, no more
	3 volt lithium battery
Display type	liquid crystal display 5 digits (00000...99999)
Storage and transport temperature	from - 60 to + 50 °C
Service life (typical)	10 years + 15 months

Type approval mark

The type approval mark is applied by typography to the passport and the title page of the instruction manual, as well as by offset printing to the body of the INDIV-5, INDIV-5R, INDIV-5R-1 device.

Completeness

The completeness of the measuring instrument is given in Table 3. Table 3

Verification

is carried out according to the method given in section 9 "Verification" of the document "Devices for the distribution of thermal energy electronic INDIV-5, INDIV-5R, INDIV-5R-1. Operation manual”, approved by the GCI SI FBU “Rostest - Moscow” on 12.07.2012.

Basic means of verification:

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

Resistance thermometer platinum vibration resistant reference PTSV of the 3rd category; Multichannel precision temperature meter MIT 8.10, At= ± (0.0035 + 10-5 t) °С

Information about measurement methods

Information about measurement methods is contained in the document “Devices for the distribution of thermal energy electronic INDIV-5, INDIV-5R, INDIV-5R-1. Manual".

Regulatory and technical documents that establish requirements for electronic heat distribution devices 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.

in the implementation of trade and commodity exchange operations

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

The relevance of using the presented models

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

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

Basic models of heat distributors

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 heater surface sensor is remote.

All types of valves allow memorizing and displaying the resulting reading on a pre-set 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 heating battery.
3. Tubular and panel radiators.
4. Pipe registers.
5. Convectors.

The heat distributor solves the following tasks:

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-test system.

Specifications INDIV-3:

1. Design temperature range in heat supply systems: 55-105 degrees Celsius.
2. Starting reference temperature: June-August: 40 degrees Celsius, September-May: 30 degrees Celsius.
3. Heat distributor power supply: lithium battery.
4. Dimensions: 40x76x25 mm.
5. Distributor measurement accuracy: complies with European standard EN834.

Advantages of ordering heat meters-distributors in 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 experts are ready to tell you about all heat distributors and answer your questions.
4. Sufficient stock of products. You can order heat 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 in Moscow and in the regions.

Contact us! Control heat in a modern format and cut costs.

code number	Description	Price (EUR)	Sketch
088H2330	Compact radiator meter-distributor INDIV-5 with visual reading from the LCD display	30,83
088H2203	Compact radiator meter-distributor INDIV-3R with remote wireless data transmission (radio)	43,39

Radiator meter-distributor INDIV new generation

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

code number	Description	Price (EUR)	Sketch
088H2250	Two-channel pulse adapter INDIV PAD for connecting 2 meters (water, electricity, gas) with a 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 powered)	459,42
088H2256	Network node with communication module for remote reading with Ethernet interface NNV-IP (mains powered)	1512,26

Accessories for radio setup and readings

Radio system software

code number	Description	Price (EUR)
	Parameterization program for Indmet meters
	Program for reading data from counters Indread
	Indserv tool for setting up and reading data from the INDIV AMR system
	Parameterization program for Indcomm main network node including connecting cable

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

Gap between sections no more than 34 mm

code number	Description	Price (EUR)	Sketch
088H2211		1,32
088H2230	T-nut, 65 mm	0,85
	Bolt M 4 x 35 mm
Kit cost

Gap between sections more than 34 mm

code number	Description	Price (EUR)	Sketch
088H2212	Thermal adapter, standard, 55 mm	1,32
088H2230	T-nut, 65 mm	0,85
	Bolt M 4 x 35 mm
Kit cost

Kit for mounting the meter-distributor on panel radiators

code number	Description	Price (EUR)	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 (required to order 2 pcs. for 1 meter)
Kit cost

Kit for mounting the meter-distributor on convectors

Mounting on "fins" (convectors "Universal", "Santekhprom-Avto", KV)

code number	Description	Price (EUR)	Sketch
088H2211	Thermal adapter, standard, 40 mm	1,32
088H2270	Cutting rod M 3 x 330 mm	2,81
	Castellated nut M 3 mm (required to order 2 pcs. per meter)
Kit cost

Installation on the "kalach" (convectors "Akkord", "Comfort", "Progress")

code number	Description	Price (EUR)	Sketch
088H2211	Thermal adapter, standard, 40 mm	1,32
	Tail nut M 3 x 6 mm (requires ordering 2 pcs per meter)
	Welding bolt M 3 x 10 mm (order 2 per meter)
Kit cost

Kit for mounting the meter-distributor on tubular radiators

code number	Description	Price (EUR)	Sketch
088H2211	Thermal adapter, standard, 40 mm	1,32
088H2241 or 088H2242	T-nut, 36 mm or 45 mm	6,96
	Bolt M 4 x 35 mm
Kit cost

Kit for mounting the meter-distributor on aluminum radiators

Gap between sections no more than 4 mm

code number	Description	Price (EUR)	Sketch
088H2211	Thermal adapter, standard, 40 mm	1,32
	Self-tapping bolt C 4.2 x 25 mm (requires ordering 2 pcs. for 1 meter)
Kit cost

Gap between sections more than 4 mm

code number	Description	Price (EUR)	Sketch
088H2211	Thermal adapter, standard, 40 mm	1,32
	Square studs (requires ordering 2 pcs per counter)
	Screw M 3 x 25 mm (requires ordering 2 pcs. for 1 meter)
Kit cost

Optional equipment

code number	Description	Price (EUR)

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

The principle of operation of distributors.

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

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 will a large heater give off more heat? To take this situation into account, the radiator coefficient is used. Each manufacturer has tables of radiator coefficients for their devices for all types of manufactured radiators. Tables of radiator coefficients are included in computer programs for recalculating payments, and the coefficients are automatically taken into account in the calculation.

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

The cost of a heat distributor and payment for heat.

The cost of a heat distributor is about 10 times less than the cost of an apartment heat meter. Distributors are easily installed on any type of heating devices. This is the main advantage. Due 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 according to the readings of the heat distributors is the distribution of the total amount paid to the heat supplier between individual apartments in proportion to the readings of the radiator distributors. At the same time, the residents of the apartments monthly, during the year, make payments at fixed pre-calculated and approved rates, and settlements with the heat energy supplier are made according to

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 drawn between the amount of his payments at provisional rates and his estimated payment. The amount received is used to offset payments for heating for the next year.

Thus, in the presence of any type of individual heat metering devices, payments for heating are made dependent 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)

• Distribution sensor for individual metering INDIV-3 with visual reading from the LCD display
• Sensor-distributor for individual accounting INDIV-3R with remote wireless data transmission (radio)
• Installing a thermostat and measuring sensor
• Annual apartment settlement services

In the table, the costs for the installation of radiator thermostats and heat distributors

Calibration interval of heat distributors is 10 years. Apartment 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 economical residents, this period will be even shorter.

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

• thermostatic regulators must be installed on heating appliances.
• At least 75% of the heated premises must be equipped with thermostats and heat distributors in the building.
• the actual cost of thermal energy for heating a residential building should be made by a common house heat meter.
• in the housing organization, recalculations of payments for residents should be organized according to the readings of common house and apartment meters.

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