Installing the Mercury 201 counter yourself. Single-phase meter circuit

Product in stock! Prices 2019

Conditions for ordering and delivery of adapters for communication with Mercury meters
(requests by email [email protected] or by phone 8-909-283-34-16)

1) Automation unit - WiFi router (model VR-007.4) Cost 5000 rubles. Buy. Miniature SPD for polling lists of Mercury meters via any of the connected USB-RS485/CAN/IRDA/optoport interfaces. It can independently poll 10 three-phase Mercury meters, or create an end-to-end tunnel for polling through itself external programs unlimited list of counters.

2) Cost 3300 rubles. Buy. Complete hardware device for transferring data between local network Ethernet and wired RS485 interface. Widely used to automate readings from metering devices, including Mercury electricity meters. Works with all types of TCP/IP protocols in server and client modes. Can be connected to the Internet for remote monitoring of ASKUE metering objects.

3) Cost 1950 rubles. Buy. Interface converter for electricity meters Mercury-230, 231, CE-102 containing IRDA interfaces. To connect to an electric meter, it does not require opening the terminal box.

4) Cost 1950 rubles. Buy. Universal converter of wired interfaces RS485/CAN. Can supply power to the electric meter interface. Suitable for Mercury-200, 203.2T, 206, 230, 233, 234, 236 containing RS485/CAN. Connection requires opening the terminal box. It is possible to connect highways with meters.

5) Cost 850 rubles. Buy. Suitable for Mercury electricity meters that do not need to power the communication interface. It has only output terminals D+ and D-. Can be used with Mercury-203.2T, 206, 230, 233, 234, 236, containing RS485. It is necessary to open the terminal box for connection.

6) Cost 1950 rubles. Buy. Suitable for electricity meters Mercury-201.8TLO, 203.2T, 206, 233, 234, 236, containing an optical port. Connection does not require opening the terminal box.

8) Cost 4000 rubles. Buy. Miniature radio modems with a transparent communication channel, allowing you to work with electricity meters in radio extender mode. They have the ability to connect to industrial RS485/CAN interfaces and allow you to create group or single electricity metering units in hard-to-reach places.

9) Cost 2000 rubles. Buy. The modem has specialized Hilink firmware, works with all SIM cards, has advanced settings (built-in firewall, SMS, USSD, displays service information about signal levels and much more). Allows you to provide VR-007 automation nodes with the Internet and create the ability to poll electricity meters via 3G networks.

10) Cost 4200 rubles. Buy. Element smart home, allowing automated polling through any of the connected USB-RS485/CAN/IRDA/optoport interfaces three-phase meter Mercury. It has its own adaptable Web interface, a database, and can conduct a minute-by-minute survey of instantaneous values ​​of currents, voltages, powers, and build energy graphs by month and day. It has the ability to broadcast a webcam and weather stations through itself; it is an element of a smart home capable of transmitting consumption data to email user and sales. Can output data to the Narodmon.ru server and report critical situations.

Delivery (added to the cost of the product):

1) Russian Post - first class registered parcel. Price 300 rubles. Delivery time is 3-5 working days. A track number is issued.

The single-phase electricity meter "Mercury 201" is considered the most common energy metering device in Russia today. Counters of this brand replaced more outdated models equipped with rotating disks.

Today we will talk about what a meter of this brand is and what its characteristics are, you will also learn about the rules for connecting the Mercury 201 meter and read consumer reviews.

Electric meter "Mercury": brief description

You can connect the Mercury 201 meter yourself if you study the features of this device and the instructions for it.

Electric meters "Mercury" produced in Russia since 2001 at the facilities of the Incotex company, which produces electricity meters ranging from simple single-phase ones for household needs to complex three-phase meters.

The Mercury 201 counter has several modifications, ranging from 201.1 to 201.8.

The device is also divided into series depending on parameters such as:

• permissible operating current;
• a way to display electricity consumption data.

Design features of the Mercury meter

All modifications of the Mercury 201 electricity meter have the following structure:

The lower part of the housing has a removable design and serves as protection for contacts. When you remove it, you gain access to the electrical input contacts. The wiring is connected to them using a screw connection.

To mount the meter on a wall or other surface, you need to fix it on it with a special DIN rail, which is equipped with almost all metering devices today.

Depending on their modification, meters of this series are:

• electromechanical, where the reading device is a mechanical drum;
• electronic, where energy metering results are displayed on the LCD display.

The counter of this brand is equipped special protection against electricity theft thanks to polarity reversal. It also has the following characteristics:

• permissible temperature environment for operation of the device is from -20 to 55 degrees Celsius;
• the manufacturer provides a three-year warranty on the product;
• the maximum service life of the meter after connection is 30 years;
• the intercheck interval is about 15 years.

What requirements must the meter meet?

When you buy a Mercury 201 series electric meter, you need to check that it met the requirements, which are indicated in the manufacturer’s documents:

• first or second class of accuracy, that is, the permissible measurement error is 1-2%;
• the date of manufacture and testing of the device in production must be indicated;
• check that the meter value number is entered in the State Register of Measuring Instruments;
• check the presence of the warranty seal;
• Make sure that the product has a verification adhesive with the verification date and an anti-counterfeit hologram.

Connecting the Mercury 201 meter

Before installing and connecting the device, you must carefully study the instructions, the device data sheet, and also familiarize yourself with its connection diagram.

Single-phase device on terminal block includes the following input contacts:

• contact for entering a phase from an external network into the room, the network wire is supplied from the electrical supply company;
• contact for phase output indoors, ShVVP type cable is used;
• terminal for connecting zero from the external network to the room;
• zero output terminal to load inside.

Connecting the wires is also carried out in the listed sequence.

Remember that before connecting you need de-energize the system:

• turn off the machine;
• traffic jams;
• switch;
• supply line if the input cable goes to the meter.

The connected wires should be carefully routed using the perforated breakout cells on the terminal cover. The lid must be screwed to the body until it fits completely.

Then check the wiring diagram again and install the cover. Call a representative of the management electricity company to carry out the procedure of sealing the meter through a special hole. When the device is connected to electricity, an indicator in the form of a red light comes on.

Once upon a time, electricity consumption was determined by the number of electrical appliances used in the room. This method was not the most ideal, and also provided distorted information.

Today there are many that can provide very accurate information. In this article we'll talk about how to connect yourself electric meter.

Connection features

Before you begin the process of installing an electric meter, you must contact the organization responsible for the supply of electricity to agree on the following details:

• Mark the location where the measuring device will be installed. Although it can be installed indoors, Lately Residents are trying to install the meter outside.
• Device type. It is necessary to purchase meters that comply with all requirements for operation and have been certified in the state register. The device must be in good working order and meet modern standards.

Compliance with installation standards electrical diagram the meter itself, as well as the wiring diagram.

Errors when installing an electric meter arise as a result of a lack of understanding about the correct execution of this process. In general, installation of this measuring device is not difficult.

How to install machines

Tips for connecting meters and machines:

• The machines are installed to protect the electric meter from power surges in the network. This must be done before entering the line;
• If machines are installed after the meter is installed in the line, if there is a power surge, it may simply stop working;
• The documents say that one machine can be mounted per phase wire, but in practice it is often installed with two poles, which can regulate the supply and neutral.
• The mounting location for the machines is a DIN rail, which must be grounded on the frame of the electrical panel, if it is not a component of the panel itself.

Single phase electric meter

A single-phase electric meter means connecting all electrical appliances to one phase. This device has four terminals, through which electricity is supplied to the room. The terminals are also used to connect to the general electrical network.

Algorithm for installing a single-phase meter

Connection measuring instrument with one phase consists of the following stages:

• Disconnecting the premises from electricity and dismantling the old meter;
• Attaching a new meter in place of the old one.
• Connecting the phase wire to the first terminal. It is usually highlighted in red, but to be sure, you can test it using an indicator screwdriver. If the wire is phase, the indicator on the screwdriver should light up.
• Connecting the phase wire of the residential network to the second terminal. This stage completes the formation of the first chain.
• In a similar way, the neutral wire from the general network and the apartment network is connected to the third and fourth terminals.
• Before you start connecting the meter, it is advisable to study its connection diagram.

Algorithm for connecting a meter with three phases

A three-phase meter involves dividing electrical appliances used in a room into groups. This device is connected according to the same principle as a single-phase meter, but, in general, the process is a little more complicated. The three-phase meter has a total of eight terminals, which are connected as follows:

• Terminals 1,3,5,7 are connected to single-color wires of the external network.
• The remaining terminals are connected to single-color wires of the home network.
• To increase the level of security, the input cable must be connected through an input-type machine with four poles.
• For each group of electrical appliances, one single-pole circuit breaker should be installed.

Measuring device "Mercury 201"

Before installing the Mercury 201 meter, it would be a good idea to familiarize yourself with information about its design characteristics. This meter has a display installed on its rectangular body. All necessary parameters are indicated on right side devices.

Mercury 201 is lightweight and small size. This meter is connected in the same way as others

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All large quantity Apartment owners are faced with the problem of replacing the electric meter. And most often this is necessary in order to obtain more accurate data - to replace...

Counter electrical energy"Mercury - 201" is currently the most popular metering device in our country. Counters of this model successfully replace older models with a rotating disk.

In this article we will talk about what features and characteristics this metering device has, as well as how it is connected.

Features and technical characteristics of the meter

These metering devices have been produced by the domestic company Incotex since 2001. This manufacturer has established itself as a high-quality one, producing both single-phase meters for household needs and complex three-phase designs.

This device has several modifications from 201.1 to 201.8. And also all units from this series can be divided into types depending on the permissible operating current and the method of displaying information about electricity consumption.

The Mercury 201 meter is a rectangular plastic case with an LCD display on the front with information about energy consumption. Right on front side located Technical information in the form of a table. The device body is compact in size.

The lower part of the meter housing is removed and provides access to the device contacts. All wires are connected using a screw connection. To fix the meter on a vertical surface, you must use a DIN rail, which is equipped with almost all modern devices accounting.

Depending on the configuration, these meters can be electromechanical, where a special drum is a reading device, or electronic, where all readings are displayed on the display.

Thanks to polarity reversal, all meters in this series are protected from theft of electrical energy. It also has the following characteristics:

1. Certain indicators operating temperature, which are between -20 and +55 degrees.
2. The product is guaranteed for 3 years from the date of purchase.
3. The maximum service life of the meter is 30 years after installation.
4. The calibration interval is 15 years.

Requirements for the meter

Before purchasing an electric meter, you need to check whether it meets all necessary requirements. This includes the presence of an accuracy class, usually for electricity metering devices this is the first or second class, which allows a measurement error of 1-2%.

It is also worth checking in advance whether the date of production and verification of the meter is indicated. It is imperative to check the number for availability in the State Register database of measuring instruments and the warranty seal on the device itself. And it’s worth making sure that you have the verifier’s mark and a security hologram.

Connecting the meter

Before installing the meter, the following details are agreed upon with the energy supply company:

• Installation location. This is usually done outside the apartment or house, but installation can also be done inside.
• Model of the installed meter. Here you will need technical documents, which are received upon purchase.
• Checking the quality of the electrical connection and wiring diagram.

Before connecting the meter, you must study as carefully as possible technical certificate to the product, and also clarify its connection diagram. If the master is unsure of his abilities, then it is necessary to use the services of professionals. Very often, many questions arise regarding how to connect the Mercury-201 meter, but in fact there are no particular difficulties in this process.

A single-phase device is designed to include the following input contacts:

1. Contact for entering a phase into the room from an external network. The wire is obtained from the electricity supplier.
2. The ShVVP cable is intended for phase output into the connected room.
3. Terminal for connecting zero from the general network.
4. Zero output terminal to load inside.

All wires are connected in the specified sequence.

Important! Before starting work, the system is de-energized. To do this, turn off the switch, the machine, the plugs and the cable itself if it goes to the meter.

The connected wires are neatly arranged on the terminal cover using perforated cells. The cover itself is mounted on the body as tightly as possible.

After this, you need to once again make sure that the connection diagram has been followed and call a representative of the electric company who will carry out verification and install the appropriate seal on the meter.

Important! If the red light on the electric meter is on, this means it is connected to electrical network.

How to SIMPLY install Mercury 201 with your own hands, check for correct readings, connection diagram, determine the malfunction and how to eliminate them. + TEST self check

TEST:

Working with household electrical appliances, you need to know the basics of electrical safety. Test your knowledge with this short quiz:

1. Which AC voltage Is it safe for human life upon direct contact?

a) 42 V; b) 127V; c)220V

1. How to make sure that the input wires into the room are not live?

A) touch with your hand; b) close together; c) using an indicator screwdriver

1. What is the very first action if the room smells strongly of burnt wiring?

a) call the Ministry of Emergency Situations; b) turn off the input machine and call an electrician; c) turn off all consumers one by one and monitor

Mercury 201 and its five models

– a modern meter for active energy consumption by consumers of the household electrical network. The device is manufactured by Incotex, model 201 has several modifications, each with its own specifics.

Externally, models of electrical measuring devices differ in indexes. Each of the above five modifications has its own limit for measuring alternating current strength, its own way of displaying power consumption on the front panel. The maximum operating current of the device is from 5 to 10 A; the method of indicating readings can be either liquid crystal or mechanical.

Operating principle of the Mercury 201 counter is that the primary electricity consumption signals are generated by voltage and current sensors. Then they go to a converter controlled by a microcontroller. After decoding, the signals supply information to a mechanical or liquid crystal type output device.

Electricity meter Designed for both independent accounting of electricity consumption and for work in an automatic information-measuring accounting system.

Now brand counters - the most accessible and accurate. They replace older energy metering devices with rotating discs.

You can connect the electricity meter Mercury (hereinafter E.M.) 201 using any of the three videos

There are several videos available on the Internet that explain in detail how to connect 201 correctly device for the input of the electrical network and to consumers.

Three options detailed videos to connect the meter yourself:

In the videos, the wizards describe in detail the steps required for connection EM 201 with the household electrical network and show how all household consumers connect to it. At the same time, all the small details are not forgotten, the rules for unpacking the device, compliance with the requirements of warranty repair companies, rules fire safety, safety when operating an electrical household network.

This matter does not present any difficulties for those who at least sometimes encounter work in a single-phase eclectic network, who know how to expose the ends of wires and use a simple set of screwdrivers.

Connection diagram for electricity meter M. 201 with four terminals and automatic switches

Accounting for electricity consumption is carried out by an electronic device of a modular principle. The readings of the device are not affected by whether the connection is made with direct or reverse polarity. Even by swapping the input and output wires or replacing the connector for the neutral with the phase input, it is impossible to malfunction this device.

Four meter terminals Mercury single-phase design are intended:

• 1 – terminal for connecting the input phase wire;
• 2 – output terminal for connecting electric current consumers;
• 3 – power line neutral input;
• 4 – output terminal for the neutral wire to consumers.

When connecting wires to the device, you must first remove the protective cover from it. plastic panel and unscrew the screws in each of the four cells to such an extent that the prepared, cleaned of the insulating layer and aligned ends of the wires fit into them freely. Then the wires need to be inserted into their cells and tightly clamped with screws using a Phillips screwdriver.

It is important! Before you start connecting single-phase meter Mercury, you should carefully study its passport, instruction manual and understand the connection diagram.

For reliability electrical contact in each cell the wire is clamped with two screws, the top screw is tightened first, then the bottom one. To avoid mixing up the wires when connecting, you should insert them into the cells in order, from the first to the fourth. You can make sure that everything is done correctly and that the contacts will be reliable by gently shaking each wire. If there is no lift movement of the exposed ends clamped with screws, the protective cover is closed.

TO RCD phase and zero are supplied, and the phase wire is supplied to the circuit breakers. Bypassing the machines, protective and neutral contacts should be laid to the connected consumers. For all consumers connected via RCD, a grounding contact must also be made.

Exits from machines and devices protective shutdown serve for connection lighting fixtures and sockets for low-power consumers. RCD used for more powerful household appliances – washing machine, boiler.

If it is necessary to use grounded consumers in a residential network, a slightly different working diagram:

The grounding wire is suitable for all sockets and technological connectors and provides protection for household appliances from short overloads.

Four checks of E.M. 201 for the correctness of the readings

Examination Mercury 201 on the correctness of the readings can be carried out by its owner independently. This is in cases where the meter malfunctions, when its readings no longer correspond to the actual electricity consumption, the owner of the house or apartment has to overpay for utilities.

The test is carried out at home independently; there is no need to call an electrician to your home.

Types of Home Checks Mercury 201:

• lack of self-propelled guns;
• correct connection to the network;
• the magnitude of the accounting error;
• lack of magnetization.

There are several different situations to check the correct operation of the device’s metering device:

• energy consumption in a house or apartment has increased significantly without changing the mode of use of the same electricity consumers;
• new electricity consumers were purchased and began to be actively used, but monthly electricity consumption did not increase;
• Very high consumption electricity per month, which does not correspond to the average for housing of the same format (compare with the indicator of a neighbor or relatives);

This is necessary for verification! When similar situations arise, you need to carefully read all further advice and independently check the correct operation of the meter. To perform the test, you will need a watch or phone with a stopwatch, a calculator, a 100-watt light bulb and a multimeter.

Electric meter connection diagrams

First check - correct connection

First you need to familiarize yourself with the connection diagram to the household electrical network of the meter. This circuit is very simple, it uses only four terminals, two are input, and two are output.

If the meter of an apartment or house is connected differently, this may cause false readings of electricity consumption. In this case, you need to immediately contact the energy supervision authority. Incorrect connection is often interpreted by employees of this structure as deliberate theft of electricity. The consequence is that the user is subject to a large fine.

You can verify that the device is connected correctly using the video:

In the video, the presenter describes in detail all the steps to assess the correct connection of the electrical measuring instrument. .

If the wires are connected to the meter correctly, we move on to the next, more serious stage of verification - the presence of a self-propelled gun.

Second check - for self-propelled guns

This check is even simpler than checking for correct connection. It can be done at home; no equipment is required.

All electricity consumers in the apartment are switched off and automatic devices located below the counter. If circuit breakers were not provided when installing the device, then it is enough to unplug all household appliances from the sockets and turn off the lighting fixtures.

Next, you need to notice the current readings of the device and write them down. When observing the front panel of the device, you should make sure that its indicator does not blink and the counting mechanism does not move. After waiting 15-20 minutes, you need to make sure that the device readings have not changed.

In a working meter, no blinking should be observed, the readings remain the same. If the device changed its readings and the LED on the front panel blinked, it failed the test. You must immediately contact the organization that services electricity metering devices.

Third check – measurement error

To check the measurement error of an electric meter, you will need a 100 W light bulb, an electronic multimeter, a stopwatch with a calculator. Next, perform the following steps:

• the voltage in the network is measured with a multimeter and the results are recorded;
• the current flowing through the light bulb is measured;
• multiplying the voltage by the current to obtain the power of the light bulb;
• the light bulb is connected to the apartment’s network and the time during which the control diode blinks exactly 10 times is determined;
• the front panel of the meter contains its constant, designated as follows: “2300 imp/kW”;
• multiplying the current of the light bulb by the voltage, we get its real power 32 * 0.41 = 95.1 W;
• now we need to find out what electricity consumption will occur in 2 minutes (or 120 seconds), for which we multiply the calculated power by the test time and convert the time into hours: 95.1 W * 120 sec/3600 = 3.17 W/hour;
• the change in the device readings during the same time can be determined by multiplying its constant (see front panel) by the number of blinks, for example 1000 * 10/3200 = 3.125 W/h;
• the device error is determined by the ratio of calculated consumption to real readings: (3.125 -3.17)/3.17*100% = 4%;
• the result obtained is included in the permissible error of electric meters; it does not play a significant role in the calculation.

The fourth check is for magnetization

You cannot use a strong magnet near the meter; if an anti-magnetic seal is installed in it, it will change its indicator color, and inspectors will present claims to the user for attempting to commit fraud.

It is enough to take a thin needle and bring it to the front panel of the meter. If it is attracted to the panel, excess magnetization of the entire device is detected. You will have to buy a simple household demagnetizer, and then demagnetize the device according to the instructions included with the purchase.

An important result: knowing all the technologies for checking the meter at home, the user can be sure that he is not overpaying for the electricity used.

Two ways to install the meter Mer-th 201

Installing the Mercury 201 meter yourself in a house or apartment is possible in two ways: do everything using a special DIN rail or screw it to the back panel of the electrical panel with a universal adapter plate. But for two years now, the meter has not been equipped with these transition elements when sold; they are purchased separately.

If you entrust the installation of an electric meter to an energy company, you will have to pay for the service, but everything will be done professionally and reliably.

Details about installing the meter are shown in the video:

TOP 2-5 sites with the name “Connect EM 201”

Any information on the rules for connecting electric vehicles can be easily found on the TOP 2-5 sites for issuing upon request “Connect an electric meter " There are all the rules, sequence of actions and step by step instructions making the connection.

Having carefully studied the content of the site materials, a person even with little skills in performing electrical work can easily cope with the task.

Connect to the EM 201 network in two steps

The first thing to do when installing the Mercury 201 meter yourself - This is to de-energize the electrical supply line. Secondly, you need to connect the four wires in strict accordance with the EM 201 operating instructions.

WITH inside With the terminal cover, a connection diagram is always drawn, which must be followed when performing the work.

Image of correct meter connection without terminal cover and with it

Image of the correct connection of the Mercury 201 meter without a terminal cover and with it

Important! The screw terminals for connecting wires must be tightened securely. Otherwise, the connections will become hot, resulting in wasted energy and increased danger.

How to avoid mistakes when connecting 4 wires

When performing work on connecting EM 201, you need to follow three simple rules:

1. The phase input and output should be wired with wires of one color, the output and zero input with wires of another color, as shown in the images above.
2. The input wires are located to the left of EM 201, and the output wires go to the right.
3. The tightening of all eight screws in the terminals must be repeated after all the wires have been connected.

These simple steps will allow you to accurately and reliably connect the wires to the device without confusing anything.

It’s also important to know!

There are two important points that require quick solution- malfunction EM 201 and safety of seals.

3 malfunctions of the electricity meter Mer-th 201 and how to eliminate them

Three common faults EM 201 relate:

• poorly clamped wire terminals;
• no LED blinking or change of device readings when consumers are switched on;
• existing damage to the housing, sight glass, terminal cover.

When the wires are poorly clamped, sparking of the terminals is observed when a powerful consumer is turned on. Overheated insulating coatings emit the smell of burning plastic, and at times a slight smoke can be seen above the terminal cover.

If the meter stops blinking with the front panel photodiode or changes its readings when the consumers are turned on, this also indicates a malfunction.

It is very important! In the above cases, you must immediately make a statement to the energy supervision service. The specialist who arrives on call will do what is necessary for the further operation of the EM 201 or offer its replacement.

You can't joke with a filling - one of the first rules

If the device body or sight glass is accidentally damaged, further operation is undesirable - during a control check by energy supervision specialists, the incident will be considered an attempt at fraud.

A specialist from a government organization who arrives on call, after eliminating the malfunction, is obliged to check the serviceability of the seal or install a new one.

If the meter was used unsealed or the seal was damaged, the owner faces a serious fine.

Answer five frequently asked questions

1. Is it possible to install EM yourself? Answer: It is possible, but before starting operation it is checked and then sealed by an energy inspector.
2. When to change old meter? Answer: No later than 16 years from the date of the last inspection.
3. At what height from the floor is the EM installed? Answer: strictly according to the height of the eyes of an adult of average height. It should not be placed too high or too low.
4. How to buy a new EM 201? Answer: The energy company issues a certificate in a special form, using it you can buy an electric meter in a store.
5. How long does it take to process an application to replace an electric meter? Answer: In no more than two weeks, the company will enter the application into the state register.