Meter Neva MT 324 connection diagram

Electric meter Neva 324 is a three-phase device for metering consumed electricity according to several tariff plans. This device is intended for installation in industrial production conditions, the private sector - in apartments, country houses and other premises.

The energy meter is approved for use within the Russian Federation and on the territory of neighboring states, and is included in the list of devices for measuring electricity indicators. The meter is equipped with an interface that allows you to read data by connecting to an external electronic system for storing and processing information.

The set of equipment installed in the device includes:

• optical port;
• a button that allows you to switch sections of the information displayed on the display;
• electronic sealing system on the front panel of the case;
• inputs for testing and diagnostics.

Using an electric meter, it is possible to record and display current and active power indicators for each tariff schedule with average values ​​of these quantities.

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Accounting principle

The essence of this device is that it keeps track of consumed electricity not with one indicator, but with several.

In this case, there is a clear distribution of payment.

• payment during rush hour (this is the morning hours from 7 to 10, and the evening hours from 17 to 21 hours);
• payment during half-peak period;
• and the lowest cost is the night rate.

Multi-tariff mechanisms in domestic houses and apartments began to be installed quite recently. But experts unanimously assure that these mechanisms are very useful.

Many people do not want to install this type of metering because they are confident that the process of taking readings and calculating the amount of payment for consumed electricity is highly complex. But things are not as complicated as they seem.

For calculations you need to prepare:

Read an article on how to properly seal an electricity meter here.

Meter Neva MT 324 - taking readings

Today we will tell you how to correctly and accurately take readings from the Neva MT-324 electricity meter. This is a three-phase multi-tariff meter, with the ability to account for electricity consumption at several tariffs, for example day/night and peak-half-peak. The meter is used in industrial enterprises, retail premises, as well as in houses and apartments with high electricity consumption.

How to take readings from the Neva MT 324 meter

There are two ways to take readings from the meter:

1. Automatic method - the values ​​are shown on the meter display independently sequentially after a short time interval and cyclically. While the counter is scrolling through the values, we can write them down.
2. Manual mode - taking readings by pressing the control button.

Types of button presses for manual mode:

1. Short press (hold less than 3 sec)
2. Long press (hold for more than 3 sec)

Each type of press allows you to switch the corresponding information on the display. All information on the meter is divided into groups. groups are indicated in the upper left corner by a code number

Let's look at E1.0.FF for example. The first 2 characters on the left are the parameter group code; instead of E1, the following values ​​can be used:

• E1 - active energy (what we need to take readings)
• E3 - positive reactive energy
• E4 - negative reactive energy
• AS - line loss
• P1 - active positive power

The next figure indicates the amount for all tariffs. Instead of 0 there can be values ​​1,2,3,4, which corresponds to each of the tariffs.

The following are the total value at the current time. Instead of FF, there may be 00; it shows the value at the last moment of withdrawal, month or day.

That is, to take readings, we need numerical values ​​​​on the meter with the following codes:

Amount for all current tariffs - E1.0.FF Total electricity consumption under tariff 1 (day) - E1.1.FF Total electricity consumption under tariff 2 (night) - E1.2.FF Total electricity consumption under tariff 3 - E1. 3.FF

Briefly: Select group E1 by long pressing the button - .0.FF We view expenses for tariffs 1-4 and the total expense for all tariffs, number 0 in the code. E1..FF

We write the number before the dot sign, that is, we do not take 1 or 2 signs to the right of the dot, depending on the model.

Calculation of the amount to be paid

To calculate the total amount payable in a single-tariff plan for the entire period of use, the value with code E1.0.FF is multiplied by the rate for the general single-tariff plan.

If you have a two-tariff plan, then take the number with code E1.1.FF (consumption at tariff 1) and multiply it by the rate for 1 kilowatt/hour during the day. Next, we multiply the number with code E1.2.FF by the rate for 1 kilowatt/hour at night. We add 2 numbers and get the total amount to be paid at 2 tariffs.

To calculate the amount payable for the current month, you need to subtract the previous ones from the current indicators, for example, for the first tariff it is now 2569 and it was 1800 last month. Then we get, according to the first tariff, 2569-1800 = 769 kilowatts for the current month at tariff 1. The same with the second tariff, or with the general tariff.

For a more detailed study, you can use the complete instructions for this model - instructions NEVA MT324.pdf

How to take meter readings Neva 324

In order to take readings from this meter, you must do:

Long press the button to enter parameters E1 - active energy . To take readings of the amounts for all current electricity prices, the following designation must be displayed on the display: E1.0.FF. We write all the characters from left to right up to the comma.

With a two-tariff plan, you need to take E1.1 data . FF (cost #1), multiply by your current daily rate. We do the same to calculate the nightly cost of electricity, only we take the data E1.2. F.F. _ When we add the two resulting amounts, we get the full invoice for the month.

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Everyone should know this

Now we will tell you how to take readings from the electricity meter if something goes wrong. Here we will look at all non-standard situations and show you a way out of them.

If the meter begins to spin in the second circle, you can take electricity readings using a simple tip: add one to the existing number in front and subtract the values ​​for the last month. Let's give a simple example: if you have a five-digit display, write down our value and add one to the beginning. Your number was 00005, this number should become 10005. Take the number for last month, for example, 99915 and solve a simple example. 10005 – 99915, it turns out 110 kW/hour. The same situation applies to the rest of the dials, regardless of the number of numbers.

What to do if there is no comma on the counter. This situation also happens, just look at the photo below. If you have such a counter installed, then you should initially clarify all the points or read the instructions. Of course, if you turned to us for help, you definitely didn’t do this, so if there is no comma, we begin to carefully look at the dial. The scoreboard should be different in color or there should be a visible comma somewhere

If all this is missing, then we write down all the indicated numbers from the meter on the receipt, no matter how many there are.

Three-phase and single-phase meters are no different from each other, so take readings from them in a similar way. In order not to take meter readings at home every month, you can install a modern ASKUE meter; it automatically reads all readings and transmits them to the service organization. All you have to do is pay your bills on time.

So we looked at the question of how to calculate the monthly electricity consumption yourself, as you may have noticed, it is not difficult. If you have any questions, ask us, we will be happy to answer everything.

Article on the topic: three-tariff electricity meter.

Full description NEVA Three-phase multi-tariff meter MT 314 1.0 AR E4BSR26

Application: The meter can be used in industrial, commercial and agricultural enterprises, energy enterprises, in cottages and apartments connected to a three-phase network. The meter is designed directly for use in the ASKUE system Purpose: The meter is designed to measure and account for consumed active or active and reactive energy in three-phase three- and four-wire alternating current networks differentiated by time zones of the day in accordance with a given tariff schedule

Regulations

The meter is manufactured and accepted in accordance with the mandatory requirements of GOST 31818.11-2012, GOST 31819.21-2012, GOST 31819.22-12 class. 0.5S and TASV.411152.005 TU. The meter is included in the State Register of Measuring Instruments and is approved for installation throughout the Russian Federation and neighboring countries. The verification interval in the Republic of Kazakhstan is 10 years, the verification interval in the Republic of Tajikistan is 4 years, the verification interval in the Republic of Belarus is 4 years.

Equipment

• Optical port according to GOST IEC 61107-2011
• EIA-485 interface powered by built-in power supply
• Intermediate load control relay
• Electronic seal of the terminal block cover
• Optical test outputs for active and reactive energy
• Electrical test output of built-in clock
• LCD backlight
• Current sensor - shunt

Peculiarities

• The universal housing allows you to install the meter both on 3 screws and on a TN35 rail
• The meter is designed in accordance with the requirements of the technical policy of PJSC Rosseti, has the functions of measuring power quality parameters specified in the technical policy
• Hardware write permission protection

Measurement and storage of measured values ​​Active, reactive inductive and reactive capacitive:

• energy on an accrual basis, including at tariffs
• energy on an accrual basis, including at tariffs fixed at the end of the month, for 12 months
• energy on an accrual basis, including at tariffs fixed at the end of the day, for 128 days
• power averaged over 30 minutes. interval for 128 days. The meter measures and takes into account the reduced energy losses in the line as a cumulative total and for each phase separately

Measuring Network Parameters

• RMS current and voltage values ​​per phase
• Mains voltage frequencies
• Active power in total and per phase
• Reactive power in total and per phase
• Angles between voltage vectors
• Active power factor, total and phase by phase

Storing date and time in the event log:

• Power on and off
• The presence of current in a phase in the absence of a corresponding voltage
• Voltage loss in any phase
• Changes in the direction of current in any phase
• Reprogramming parameters
• Changes the time and date in the built-in clock with variable time fixation
• Reset maximum power information
• Removing the terminal block cover
• Cleaning load profiles
• Microcontroller reset due to critical electromagnetic environment

Specifications

Types of communication

The meter is equipped

• Optical port according to GOST IEC 61107-2011;
• EIA 485 interface powered by a built-in power supply, exchange protocol in accordance with GOST IEC 61107-2011;
• ZigBee modem in versions NEVA MT 324 AR RF2PC;
• Trip units in NEVA MT 324 AR RF2SC and NEVA MT 324 AR E4SC versions;
• Backlit LCD for easy reading of information in places with poor lighting;
• A button for changing display frames, as well as turning on the display when the power is off, providing the ability to take readings;
• Magnetic field sensor in versions NEVA MT 324 AR RF2SC and NEVA MT 324 AR E4SC;
• Electronic seal of the terminal block cover;
• Hardware write permission protection;
• Optical and electrical test outputs for active and reactive energy;
• Electrical test output of built-in clock.

The meter measures network parameters

• RMS values ​​of current and voltage per phase;
• Mains voltage frequency;
• Active power in total and per phase;
• Reactive power in total and per phase;
• Angles between voltage vectors;
• Active power factor, total and phase by phase.

The counter measures and stores the measured values

• Active energy, reactive inductive and reactive capacitive energy on a cumulative basis, including tariffs;
• Active energy, reactive inductive and reactive capacitive energy on an accrual basis, including at tariffs fixed at the end of the month, for 12 months;
• Maximum active and reactive capacities for each tariff per month for 12 months;
• Active energy, reactive inductive and reactive capacitive energy on an accrual basis, including at tariffs fixed at the end of the day, for 128 days;
• Active and reactive powers, averaged over a 30-minute interval, for 128 days;
• The meter measures and takes into account the reduced energy losses in the line on an accrual basis in total and at four tariffs.

The counter stores the date and time in the event log

• Power on and off;
• The presence of current in a phase in the absence of a corresponding voltage;
• Voltage failure in any phase;
• Changes in the direction of current in any phase;
• Reprogramming parameters;
• Changes the time and date in the built-in clock with variable time fixation;
• Reset information about maximum power;
• Removing the terminal block cover;
• Cleaning load profiles;
• Counter restarts when supply voltage is present;
• Influence of magnetic field (meters with built-in DMP).

Specifications

Single-phase electricity meter – Taypit Neva 112

The Neva 112 electric meter is a single-phase product from a domestic manufacturer, designed for use by retail energy consumers, industrial, small-engine, domestic sector facilities and social infrastructure. The device changes the active value of consumed electrical energy in 4 tariff modes.

Type of meter – Neva MT 112 AS 0

Design and principle of operation

The housing with block and terminal cover consists of the following parts:

• a power supply that uses network energy for the operation of device systems;
• measuring microcircuit;
• microcontroller;
• electric current and voltage sensors;
• autonomous memory that records main events and settings;
• liquid crystal display that displays electricity consumption, time and other service information;
• lithium battery used to power the device when the power supply is turned off;
• optical port;
• buttons that control the display.

Equipment of the Neva 112 meter

The number of kilowatt-hours consumed, after calculation and processing by the electronic equipment of the device, is displayed on the display.

Specifications

CharacteristicsValue

Electricity meter dimensions – Neva 112

Documentation

• Passport 2021: View
• Previous version of the passport: View
• Instructions for Use: View
• Certificate SI: View
• Description of type: Watch
• Declaration of conformity: View
• Manufacturer's brochure: View
• Neva product catalog: View
• Price list for Neva devices: View

Device warranty

The company guarantees the consumer the quality of its products in accordance with the requirements of state standards. If the user adheres to the rules for handling the device established by the manufacturer, the duration of the device warranty is 6 years from the date of purchase or installation of the device, provided that the period of 7 years from the date of manufacture is not exceeded.

If the product was purchased from an authorized dealer, the trading company maintains a warranty from the manufacturer.

Advantages of the device

The counter has the following advantages:

• reliable and durable design;
• high measurement accuracy;
• additional functions that allow you to test the operation of the device and take into account and store service information, measure power indicators;
• possibility of use under several tariffs;
• high protection against interference with work due to 2 electronic seals and individual software;
• attractive appearance with laser markings indicating the main parameters of the device;
• the presence of a light indicator on the front panel, signaling the intensity of energy consumption;
• long service life and calibration interval;
• installation versatility;
• ease of taking readings.

Types of counter

The device is produced in a single design. Full marking of the meter, excluding the name of the line and number 112 - AS O 5(60) S. Based on the designation, the features of the device specified in the technical documentation are deciphered.

Replacing the battery

The device is equipped with a CR2450N-MFR HR lithium battery with a voltage of 3 V.

Battery replacement sequence:

1. The housing cover is removed after unscrewing the screws.
2. The terminal compartment cover is removed in the same way.
3. The electronic board is disconnected.
4. The old battery is removed using spot soldering and a new one is installed.
5. The product is assembled in the reverse order.

It is allowed to use another battery with similar characteristics.

Device warranty

The product is covered by a manufacturer's warranty, supported by official distributors for 6 years from commissioning or 7 years from the date of release.

The manufacturer ensures product quality that meets the requirements of state regulations. If the product fails due to a manufacturing defect, or the substandard condition is discovered before installation, in order to be accepted for warranty service, it is necessary to provide the product in the supplied kit with a certificate confirming the fact of the malfunction.

The manufacturer has the right to refuse to accept a device that is damaged due to incorrect connection, broken or otherwise malfunctioning due to the fault of the trading company or consumer.

Meter installation

The device is connected in various ways, depending on the network characteristics.

Below is a direct connection diagram:

Scheme for connecting NEVA 324 meters directly to the network

The connection via current transformers in a four-wire power supply is as follows:

Connection diagram for the NEVA 324 meter via current transformers in a four-wire network

Connections for a similar network using current and voltage transformers:

Scheme for connecting NEVA 324 meters through current transformers and voltage transformers into a four-wire network

Connection diagram of the meter through two current transformers and three voltage transformers in a three-wire network:

Scheme for connecting the NEVA 324 meter through two current transformers and three voltage transformers into a three-wire network

Connection diagram via current transformers and voltage transformers for a three-wire network:

Scheme for connecting NEVA 324 meters through current and voltage transformers into a three-wire network

This reliable device will allow you not to worry about metering electricity when consuming it on a large scale, since it meets all standards and quality requirements.

Taking readings

Before taking readings, you should find out what tariff you pay for electricity at 1 or 2. If at one tariff, then we rewrite the total value of kilowatts consumed on an accrual basis. If accounting is carried out at two tariffs day/night, then you need to write down the value for each parameter, the number of kilowatts day and kilowatt night.

The digit size or value of the counter is 6 – 000000.00, which means that when taking readings we write down 6 digits before the decimal point, followed by hundredths of kilowatts.

Symbols on the display

In order to view the necessary parameters, you need to look at the display; it automatically cyclically shows data on energy consumption in general and by tariff; it can also show other parameters that were programmed for automatic output when the meter was installed.

Method 2: Without waiting for the necessary information to appear on the screen, you can use the unsealed button. Pressing it for 2-3 seconds (long) will activate the manual viewing mode and with long presses you can view 3 groups of parameters. We need the first group of energy parameters. Transitions within a group are made by short presses of an unsealed button.

Energy parameters

in this group you can view not only the current values ​​for electricity consumption on an accrual basis and by tariff, but also for previous months there will be a PREV mark

Displaying readings for previous months

The display may also display hints about possible malfunctions in the form of error codes:

0001 – indication error 0010 – low battery voltage 0020 – programming button pressed 0040 – memory writing error

Meter Neva MT-124 - taking readings

For owners of the Neva Mt-124 electric meter, today we will tell you how to take readings, how to select the required mode for taking readings, and how many digits to count.
Neva MT-124 is a single-phase multi-tariff device for metering electrical energy. All information is displayed on the meter's electronic display. The necessary information can be displayed on the display either automatically or manually.

In automatic mode, the display changes numerical values ​​sequentially with a short time interval. The output of values ​​for display in a cycle is configured during programming of the electric meter.

In manual mode, we will use the control button on the front panel of the meter to view the necessary data.

Pressing the button can be of two types: short and long. (a hold of more than 2 seconds is considered long). All information in Neva Mt-124 is divided into groups of parameters for ease of use. We need an “energy group” to take readings. It is indicated by the [T00] symbol in the upper left corner. In order to select this mode, by long pressing the control button, we move through the group until the code [T00] appears.

Once the group is selected, to scroll through the values ​​in the group we will use the same button, but with short presses.

So let's look at what each code in the group means:
[T00] - total electricity consumption for all tariffs [T01] - consumption for tariff 1 (day) [T02] - consumption for tariff 2 (night) [T03] - consumption for tariff 3 [ T04] - consumption according to tariff 4
Next are the same parameters but with the [PREV] icon - it means that the display shows data for the last month, for example:

[T00] [PREV] is the total expense for all tariffs for the last month, [T01] [PREV] is the expense for tariff 1 for the last month [T02] [PREV] is the expense for tariff 2 for the last month

Neva MT 324

The three-phase multi-tariff electric energy meter is used in industrial, commercial and agricultural enterprises, energy enterprises, in cottages and apartments. The device is installed on a TH35 rail. The meter is integrated into automated accounting systems (AIIS KUE).

This counter does not support functions marked in gray

• Current readings
• Indications at the beginning of the day
• Indications at the beginning of the month
• Power profile
• Electricity parameters
• Time adjustment
• Relay control

The meter is equipped

• Optical port according to GOST IEC 61107-2011;
• EIA 485 interface powered by a built-in power supply, exchange protocol in accordance with GOST IEC 61107-2011;
• ZigBee modem in versions NEVA MT 324 AR RF2PC;
• Trip units in NEVA MT 324 AR RF2SC and NEVA MT 324 AR E4SC versions;
• Backlit LCD for easy reading of information in places with poor lighting;
• A button for changing display frames, as well as turning on the display when the power is off, providing the ability to take readings;
• Magnetic field sensor in versions NEVA MT 324 AR RF2SC and NEVA MT 324 AR E4SC;
• Electronic seal of the terminal block cover;
• Hardware write permission protection;
• Optical and electrical test outputs for active and reactive energy;
• Electrical test output of built-in clock.

The meter measures network parameters

• RMS values ​​of current and voltage per phase;
• Mains voltage frequency;
• Active power in total and per phase;
• Reactive power in total and per phase;
• Angles between voltage vectors;
• Active power factor, total and phase by phase.

The counter measures and stores the measured values

• Active energy, reactive inductive and reactive capacitive energy on a cumulative basis, including tariffs;
• Active energy, reactive inductive and reactive capacitive energy on an accrual basis, including at tariffs fixed at the end of the month, for 12 months;
• Maximum active and reactive capacities for each tariff per month for 12 months;
• Active energy, reactive inductive and reactive capacitive energy on an accrual basis, including at tariffs fixed at the end of the day, for 128 days;
• Active and reactive powers, averaged over a 30-minute interval, for 128 days;
• The meter measures and takes into account the reduced energy losses in the line on an accrual basis in total and at four tariffs.

The counter stores the date and time in the event log

• Power on and off;
• The presence of current in a phase in the absence of a corresponding voltage;
• Voltage failure in any phase;
• Changes in the direction of current in any phase;
• Reprogramming parameters;
• Changes the time and date in the built-in clock with variable time fixation;
• Reset information about maximum power;
• Removing the terminal block cover;
• Cleaning load profiles;
• Counter restarts when supply voltage is present;
• Influence of magnetic field (meters with built-in DMP).

Specifications

Connection diagram

Direct connection diagram for Neva MT 324 electricity meters:

Connection diagram for Neva MT 324 electricity meters via current transformers into a four-wire network:

Connection diagram of Neva MT 324 electricity meters through current transformers and voltage transformers into a four-wire network:

Connection diagram for Neva MT 324 electricity meters via current transformers into a three-wire network:

Connection diagram of Neva MT 324 electricity meters through current transformers and voltage transformers into a three-wire network:

Functional Features

The Neva 324 electric meter has the ability to connect to automated accounting systems.

Records the following data:

• Current and voltage values ​​for all three phases, root mean square values;
• The total active power, its indicators in each phase, as well as the total value.

The energy meter is equipped with:

• Optical port;
• A button that allows you to take readings, change the display of information on the display and display an alert if there is no electricity in the circuit;
• Electronic sealing system on the block cover;
• For possible storage of information, hardware protection is used;
• Testing (diagnostic) inputs.

Data stored in the meter:

• Active energy divided by tariff plans is recorded as a total additional total;
• The volume of active energy, divided according to the final data of the month;
• Active power (maximum) of each tariff, according to the final readings of the year;
• An increasing value of active energy recorded over a period of 128 days at the end of each day;
• The average value of power indicators over a period of time - 30 and 60 minutes, based on the results of 128 days.

The electricity meter is able to save the temporary value of events:

• Starting and turning off the electrical power supply to the network;
• Lack of power on each phase;
• Direction of electric current and its change;
• Changing operating settings;
• Setting date, time;
• Opening the terminal block cover;
• Removing network load data and information;
• Rebooting the device when there is electricity in the circuit.

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Installation of the device

For proper operation, it is not enough to select the appropriate device; it must be connected correctly. A single-phase device is connected to a power line break. To avoid having to de-energize the entire supply line, you need to install an input circuit breaker in front of the meter. It is advisable to install the machine after the counter. It will protect the meter and outlet line if a fault occurs in the consumer circuit.

The connection diagram is indicated on the back of the device cover and in the attached instructions. The Neva single-phase meter has 4 terminals - phase wire input and output, zero line input and output.

The phase wires coming out of the machine are stripped to 1.5 cm of insulation. They are connected to terminals 1 and 3. Output conductors are connected to terminals 2 and 4, respectively.

For a three-phase device there are two types of connection - direct or through a current transformer. When there is a small number of low-power consumers in the circuit, the meter can be connected to the gap in the supply conductors.

Direct connection of such a meter requires a three-phase power supply. More terminals and wires are used. After the machine, the phase conductors are connected to terminals 2, 4, and 6. At the output of the counter - to 1, 3, 5. Neutral input to terminal number 7, output to 8.

Single-phase consumers can also be connected to such a device. To do this, you need to install a single-pole circuit breaker on one of the phases. The second conductor is taken from the neutral grounding bus. If the currents of powerful consumers exceed the rated value of the meter, it is necessary to install a transformer.

How to take readings

Taking readings can be done in two ways. All data is displayed on the display, separately for each tariff. The readings are indicated by the corresponding icons, depending on the tariff plan - T01, T02, etc.

The designation T00 displays the total consumption. Switching is carried out as follows:

• manually by pressing a button;
• in automatic mode - the information alternates sequentially, just wait a little.

To calculate data for the past month, information is written out separately for each tariff plan, at the beginning and at the end of the specified period, calculating the difference and multiplying by the cost.

How to take readings from the Neva MT 324 meter

There are two ways to take readings from the meter:

1. Automatic method - the values ​​are shown on the meter display independently sequentially after a short time interval and cyclically. While the counter is scrolling through the values, we can write them down.
2. Manual mode - taking readings by pressing the control button.

Types of button presses for manual mode:

1. Short press (hold less than 3 sec)
2. Long press (hold for more than 3 sec)

Each type of press allows you to switch the corresponding information on the display. All information on the meter is divided into groups. groups are indicated in the upper left corner by a code number

Let's look at E1.0.FF for example.
The first 2 characters [E1] on the left are the parameter group code; instead of E1 the following values ​​can be used:

• E1 - active energy (what we need to take readings)
• E3 - positive reactive energy
• E4 - negative reactive energy
• AS - line loss
• P1 - active positive power

Specifications

Technical characteristics of Neva 106

Overall dimensions of the Neva 106 meter

Device service life

According to the manufacturer's specifications, the electric meter is designed for a service life of 30 years. The energy meter has a lifespan of 160,000 hours. If the consumer operates the device in accordance with the requirements specified in the instruction manual, the manufacturer guarantees its proper operation for at least 5 years from the date of production or 4 years from the date of sale (installation).

Calibration interval

For such devices, the expected duration of the verification interval is from 4 to 25 years. The described electric meter must be verified at least once every 16 years, which characterizes it as reliable. The period should be counted not from the date of release, but from the moment of commissioning. The organization performing the verification installs an appropriate seal with the date the work was performed, and the results of the energy meter verification are displayed in its passport.

When purchasing a new device, you need to make sure that it has been verified by the manufacturer and that there is a corresponding entry in the passport. If the device has been repaired or reinstalled, it is necessary to carry out an extraordinary verification, regardless of the expiration of the verification interval.

Meter cost

The device is represented by numerous dealers of the manufacturer - in specialized retail outlets, stores, and it is possible to order products online. The price of the device is about 800 rubles, but this figure fluctuates in one direction or another in different regions. If you order a meter online, you can save a little. But taking into account the payment of transportation costs by the buyer and the insignificant cost of the goods, the savings will not be too large.

Technical characteristics of the device

Technical characteristics of Neva 324

Overall dimensions of the NEVA 324 meter

Device service life

The manufacturer declared a standard service life of 30 years, the resource value is 210 thousand hours. During the initial 5 years, the device is covered by the manufacturer's warranty. If an emergency failure of the energy meter occurs within the specified period, the consumer has the right to return it to the manufacturer for repair. If restoration is not possible, the device must be replaced, provided that the user follows the rules for its operation.

Calibration interval

The calibration interval in Russia is 12 years; this period in other countries is regulated by local legislation. Before delivery to a sales representative, the device is verified by the manufacturer. The verification results, indicating the date, are displayed in the passport documentation.

Meter cost

The price of an energy meter is about 2,600 rubles, depending on the place and method of purchase. If you order products online, the cost will be slightly lower, even taking into account delivery costs.

How to remove payment data

All data presented on the display of the Neva 124 electric meter is divided into sections. To take readings correctly, you must select the “energy group”. This group is indicated by the symbol “T00” located in the upper left corner. To go to the section, you need to press the control button and hold it until (more than 2 seconds) until the desired symbol “T00” appears.

Once an “energy group” has been selected, navigation in it occurs by briefly pressing the control button.

Let's decipher the encoding designation:

• T00 – total indicator of electrical energy consumption for the month;
• T01 – light consumption in zone 1 (daytime);
• T02 – electricity consumption in zone 2 (night);
• T03 – electricity consumption in zone 3;
• Т04 – light consumption in zone 4;
• PREV – data on electrical energy consumption for the past month.

To correctly take readings of the light consumed for the current month for subsequent payment, you must look at the code T 00-T 04 without the PREV icon. When taking readings from the electric meter Neva MT 124 as op, integers are rewritten to the point.

If you chose a single-tariff system to pay for the electricity received, then rewrite the value of T00. Then you multiply the readings by the cost of 1 kilowatt at the general tariff for a single-tariff plan.

If you have chosen a two-tariff payment system, then, accordingly, record the readings of T01 and T02. Then multiply T01 by the cost of 1 kilowatt at a day rate, and T02 by the cost of 1 kilowatt at a night rate

And then by analogy, depending on the tariffs of the plan you choose.

More detailed information about the device and the rules for its operation can be obtained from the instruction manual.

Calculation of the amount to be paid

To calculate the total amount payable in a single-tariff plan for the entire period of use, the value with code E1.0.FF is multiplied by the rate for the general single-tariff plan.

If you have a two-tariff plan , then take the number with code E1.1.FF (consumption at tariff 1) and multiply it by the rate for 1 kilowatt/hour during the day. Next, we multiply the number with code E1.2.FF by the rate for 1 kilowatt/hour at night. We add 2 numbers and get the total amount to be paid at 2 tariffs.

To calculate the amount payable for the current month, you need to subtract the previous ones from the current indicators, for example, for the first tariff it is now 2569 and it was 1800 last month. Then we get, according to the first tariff, 2569-1800 = 769 kilowatts for the current month at tariff 1. The same with the second tariff, or with the general tariff.

For a more detailed study, you can use the complete instructions for this model - instructions NEVA MT324.pdf

Types of counters

Electric meter Neva 101

All models in this series have a modern design and are made of high-quality materials that are resistant to combustion. Devices for single-phase and three-phase networks have similar characteristics, but differ in some nuances and method of fastening.

The Neva 101 electricity meter is a common and reliable model. The meter is recommended for installation in everyday life, designed for a single-phase circuit. Has protection against magnetism. Attaches with three bolts. Its dimensions and fasteners correspond to the parameters of induction devices, which simplifies installation in case of replacing an old device. The price of the meter is from 928 rubles.

Neva 103 1SO is a single-phase, single-tariff electricity metering device. Suitable for use with moderate energy consumption - apartment, garage. Can be installed outdoors in a dry place. The meter body is not dismountable. Has an electromechanical drum dial. The pulse indicator flashes in proportion to consumption. Install the device on a DIN rail. Cost 984 rub.

Neva 112

Neva 112 single-phase multi-tariff device. Allows you to keep records at four tariffs - day, night, half-peak, reserve. Suitable for apartments, as well as public buildings, businesses and other facilities. Data is recorded separately for each tariff plan. Information management is done manually by pressing a button. The cost of the model is about 1300 rubles.

Neva 303 is a three-phase single-tariff device. Used in three and four wire AC circuits. It has an electromechanical counting mechanism, phase-by-phase load control indicators, and a current sensor. The minimum price of the device is 2199 rubles.

The three-phase two-tariff meter Neva is used to measure and account for alternating current energy by time zones of the day - day-night, peak, half-peak. Reading device – LCD, accuracy class 1, degree of protection IP50. The Neva MT 324 electric meter can be installed in enterprises, retail premises, and apartments with high electricity consumption. The cost of the device is from 2468 rubles.

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