Do-it-yourself mercury 201 counter repair

In detail: do-it-yourself mercury 201 meter repair from a real master for the site my.housecope.com.

Technical assistance for products manufactured by NPK Inkotex LLC: electric energy meters, automated control and accounting systems for energy resources (ASKUE), auxiliary equipment.

Message alexrsz » 04 Dec 2015, 21:17

Message Sergey » 08 Dec 2015, 10:34

Message alexrsz » Jan 19, 2016, 21:57

Message Sergey » Jan 20, 2016, 10:58 am

Repair is carried out by the service center:
Reception / return of equipment - (495) 797-67-54
Head of the service center Alexander Chapaykin 8-495-797-67-64

Try to find out from the manager about the possibility of zeroing the readings.

In the distant past, there are those times when charging for electricity was carried out on the basis of the power of lighting equipment and other electrical equipment located in the room. Currently, the presence of an electrical energy meter is a prerequisite for connecting the consumer to the general power supply networks. Modern electricity meters allow you to accurately determine the amount of electricity consumed and calculate the fee for its use.

But sometimes these reliable devices completely fail and must be replaced. In this case, you need to connect a new device that registers the amount of consumed kWh of electricity. Replacing an electric meter is not a very difficult operation, but if you do not understand anything in electrical engineering, then contact an electrician to avoid irreparable mistakes. In the event that you nevertheless decide to install an electric meter with your own hands, then you should choose a reliable device and carefully study the connection diagram of the device in the electrical panel.

Video (click to play).

The most popular electricity metering devices on the market are devices from Incotex. These include single-phase electricity meters Mercury 201 and three-phase Mercury 230. They have high accuracy, reliability, overload resistance, low power consumption and long service life. In this article, we will consider the following questions: the connection diagram for the Mercury meter, both single-phase and three-phase, and also how to connect the Mercury 201 meter.

Attention! Single-phase electricity meters of the Mercury brand are an excellent replacement for completely obsolete, both morally and technologically, electricity meters with rotating disks.

The single-phase electric meter Mercury 201 is a metering device that controls the consumption of electricity "modulo". Such a connection means that the installation of the device in a network with any current polarity will not affect its operation in any way. If during installation the output and input are reversed or the phase is connected to neutral, this will not lead to catastrophic consequences and the electric meter will still take into account the amount of electricity consumed. But still, the manufacturer strongly recommends that the Mercury 201 meter be installed in accordance with the standard connection diagram. This circuit is quite simple and easy to understand by the user with minimal knowledge in the field of electrical engineering.

The connection diagram of a three-phase electric meter Mercury 230 is also quite simple, only the number of connected contacts increases, and the principle is the same as with the Mercury 201 meter. True, for three-phase devices there are two connection options: direct and semi-indirect through current transformers. Connection through current transformers is carried out at a load value of more than 60 kW. Let's consider both options separately.

  1. Direct connection. In this case, the device is connected directly to a three-phase main power line through input automata. If a house or apartment has a standard set of electrical appliances and household appliances, then direct connection is the right option. If there is a large number of equipment at the facility that consumes electricity, you should choose a different connection scheme.Image - Do-it-yourself Mercury 201 counter repair
  2. Semi-indirect connection. As already mentioned, this option for connecting the Mercury 230 meter is used when the power of the electrical equipment being serviced is over 60 kW. In such a circuit, current transformers are used, in which the primary winding is the phase conductor of the network. For electric meters connected using current transformers, regulatory documents provide for special requirements for their installation.Image - Do-it-yourself Mercury 201 counter repair

We examined the connection diagrams for Mercury 201 and Mercury 230 meters. This information is the main one, according to which these meters should be installed in the switchboard. The installation of electricity meters from the Mercury company must be carried out in compliance with the requirements of regulatory documents and the manufacturer. Using the example of connecting the Mercury 201 counter, we will consider this process in detail.

Recommendations! All electricians recommend connecting any models of electricity meters through circuit breakers, as well as using residual current devices (RCDs).

The connection of the Mercury 201 meter in the electrical panel is carried out according to the diagram discussed above or printed in the technical documentation attached to the device. The installation of the electric meter in the switchboard is carried out on a DIN rail using a special mounting plate, but we will consider this process without reference to the switchboard. As a sample, let's take a meter with a mechanical indicator of the amount of electricity consumed.

The standard Mercury 201 meter connection diagram is located on the inside of the device cover, which closes the device contacts.

The whole process of connecting an electric meter comes down to a few simple steps, which will be described below.

  1. At the first stage, we remove the cover that closes the contacts for connecting the input and output conductors. We will see four contacts, the first two of which are used to connect the phase conductors coming from the input automata and going to the load. Another pair of contacts is designed to connect zero network and load.Image - Do-it-yourself Mercury 201 counter repair
  2. At the second stage, we loosen all four clamps of the connected conductors, strip the ends of the wires from insulation and proceed directly to connecting the meter to the power supply network.Image - Do-it-yourself Mercury 201 counter repair
  3. First we connect the phase conductors from the mains and the load. Next, we connect the neutral wires and securely tighten the screws of the contact pads.Image - Do-it-yourself Mercury 201 counter repair
  4. At the last stage, we install the protective cover in place, having previously removed the jumpers on the inlets, and check the operation of the device. If the device is connected correctly, the red LED will light up, otherwise, check the compliance of the installation with the connection diagram, and, if necessary, invite an electrician.Image - Do-it-yourself Mercury 201 counter repair

As we can see, installing an electric meter in an electrical network is a very simple operation that you can do yourself. But it should be noted that if you were able to install the Mercury 201 meter with your own hands, then after that you need to invite a representative of the electricity supplier to check the quality of the installation of the meter and seal it.

Important! Before proceeding with the installation of the Mercury series electric meter, it is necessary to de-energize the network by turning off the input machines, plugs or other switching devices.

In this article, we examined the connection diagrams of Mercury electric meters in a visual form.The question of the installation site, methods of mounting the device and other features of connecting metering devices was not considered, since this is a topic for another article!

  • Image - Do-it-yourself Mercury 201 counter repair
  • Image - Do-it-yourself Mercury 201 counter repair
  • Image - Do-it-yourself Mercury 201 counter repair

Image - Do-it-yourself Mercury 201 counter repair

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The electric energy meter "Mercury - 201" is currently the most popular metering device in our country. The counters of this model successfully replace the old models with a spinning disc.

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

These metering devices have been produced by the domestic company Incotex since 2001. This manufacturer has established itself as a high-class, engaged in the production of both single-phase meters for domestic 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 on electricity consumption.

The counter "Mercury 201" is a rectangular plastic case with an LCD display on the front with information about the energy consumed. On the right side of the front side there is technical information in the form of a table. The body of the device is compact in size.

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

Depending on the configuration, these counters are electromechanical, where a special drum is a counting device, or electronic, where all readings are displayed.

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

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

Before buying an electric meter, you need to check whether it meets all the necessary requirements. This includes the presence of an accuracy class, usually for electricity meters it is the first or second class, which allow an error in measurements of 1-2%.

It is also worth checking in advance whether the date of manufacture and verification of the meter is indicated. Be sure to clarify the number for the presence in the database of the State Register of measuring instruments and the warranty seal on the device itself. And it is worth making sure that there is a stigma of the believer and a protective hologram.

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

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

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

The single-phase device is designed to turn on the following input contacts:

  1. Contact for the phase entry into the room from the external network. The wire is received from the enterprise - the supplier of electricity.
  2. The SHVVP cable is intended for the exit of the phase into the connected room.
  3. Zero connection terminal from the common network.
  4. Zero output terminal to load inside.

Connection of all wires is carried out in the named sequence.

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 that, it is necessary to make sure once again that the connection diagram has been observed, and call a representative of the electric company, who will verify and install the appropriate seal on the meter.