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.
- 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.
- 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.
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.
- 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.
- 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.
- 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.
- 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.
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!
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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:
- Certain indicators of operating temperature, which are in the range between - 20 and +55 degrees.
- The presence of a guarantee on the product for 3 years from the date of purchase.
- The maximum service life of the meter, which is 30 years after installation.
- 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:
- Contact for the phase entry into the room from the external network. The wire is received from the enterprise - the supplier of electricity.
- The SHVVP cable is intended for the exit of the phase into the connected room.
- Zero connection terminal from the common network.
- 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.
You can advise before buying such a complex device as an electricity meter to read the reviews on this device. That is why we post several reviews of real buyers who share their opinions regarding this unit.
A few years ago, they connected the Mercury 201 counter. ” All this time it works fine. I liked the fact that it was installed quite quickly, even my son, a student at a technical university, figured out the connection diagram quickly.
I bought this meter for a private house, but made a mistake and installed it on the facade. Due to the temperature difference, small errors occur. This, of course, is not so critical, but still unpleasant. This device is of good quality and can be recommended, but only when installed inside the house.
It took a long time to choose a counter for a bath. We settled on this model. A familiar electrician quickly connected and suggested what to do so that there was no error when installing outdoors. To do this, you need to install a special closed shield that will not let in low temperatures.
Could not find a better device for taking readings. This counter is perfect in every way and does its job perfectly. First they put it on my mother, and then they replaced theirs with the same one. Now we don't have any problems.
Electricity metering is now a difficult process, for which it is important to choose the right high-quality equipment. The counter "Mercury 201" of Russian production stands out among similar ones on the market with its high quality and reasonable cost. This meter is suitable for both a private house and an apartment, and you can even install it outdoors. A lot of positive reviews speak of the popularity and excellent characteristics of this unit.
This article discusses a visual diagram of connecting a meter with a photo. Here, the meter attachment points and the place of its installation are not considered, the issue of the meter connection scheme is considered. Do not forget that before starting work, it is necessary to remove the voltage from the place of electrical work.
We will consider the connection diagram of an electric single-phase meter using the Mercury 201 meter as an example. The Mercury 201 meter has a rated current I nom =5-50A. Therefore, for this meter, it is necessary to select a circuit breaker to protect it from short circuit currents. How to choose a circuit breaker is described in detail in the article - choice of protection devices .
When connecting a single-phase meter, the wire section must be calculated for the rated current of this meter, how to choose the wire section is described in detail in the article - selection of wire section .
A single-phase meter Mercury 201 is shown in Photo No. 1.
Photo #1. Single-phase electric meter Mercury 201
The connection diagram of the meter is indicated on the back side of the meter cover, which is shown in Photo No. 2.
Photo #2. Wiring diagram for a single-phase meter Mercury 201
Let's get started. The first thing we do is remove the meter cover, see Photo No. 3.
We see four positions for connecting wires.
The first position is required to connect the phase supply wire from the introductory machine. The second position is necessary to connect the phase wire of the load, it goes to power consumers. The third position is necessary to connect the neutral wire from the introductory machine. The fourth position is necessary to connect the neutral load wire, it goes to consumers.
Next, unscrew the clamps of all four positions so that you can insert the wire into the positions. See Photo #4.
We strip the insulation from the wire by about 2.3 cm. Please note that enough insulation must be removed from the wire inserted into position, it is necessary that the insulation does not interfere with the tightening of the wire clamps, otherwise poor contact may be created, and there may also be a case of melting of the insulation. Pay attention to this remark, this is a common mistake of novice electricians. Insert the wire into position until it stops. Phase wire - white, zero - blue.
The photo shows a copper wire with a cross section of 2.5 mm 2. This wire is used as an example of a single-phase meter connection diagram and is not a reference option. In any case, the choice of wire section depends on the installed power of the consumer, and how to determine it can be found in the article - Wire section selection .
Go ahead. We connect the phase supply wire from the introductory machine, then we connect the phase load wire as shown in photo No. 5:
Next, connect the neutral wires. We get the following:
We tighten the bolt clamps of all four positions well. Next, you need to install the meter cover. The cover has special places for cutting holes for wires (see Photo No. 3). Cut holes, install and tighten the cover. The final version is the following:
In this way, a single-phase electric meter Mercury 201 is connected. Single-phase electric meters from other manufacturers are connected in the same way.
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The circuit of a single-phase meter is quite simple. In this article I will tell you how to connect a single-phase meter. I already wrote earlier how to choose the right electric meter for a house, apartment. Now, after buying a meter, there is a new task - to connect a single-phase meter to the mains.
Single-phase meters for houses and apartments are made with direct connection, i.e. without additional step-down current transformers.
There is nothing complicated in connecting a single-phase meter, before installing the meter, carefully study the documentation, instructions, examples of connecting single-phase meter circuits, etc. To properly connect a single-phase meter, we, first of all, need a single-phase meter circuit, which can be found:
- documentation, which the electric meter is equipped with is a passport, instruction or form for the meter, which indicates all the characteristics, serial number, dates of issue and verification of the meter, and of course - the single-phase meter circuit itself;
- additionally, the set of documents for the counter may include manual, which will also indicate the circuit of a single-phase meter;
- without fail, on the back of the terminal cover any electricity meter, will be applied single-phase meter circuit;
- and of course, a single-phase meter circuit can be found on the Internet.
Having studied the circuit of a single-phase meter "on paper", we turn directly to the electric meter itself.
A simple single-phase meter has 4 pins on the terminal block:
- terminal No. 1 - input of a phase from an external network (to a house or apartment)
- terminal No. 2 - phase output (inside the house or apartment)
- terminal number 3 - zero input from the external network (to the house or apartment)
- terminal number 4 - zero output (inside the house or apartment)
In the same sequence, we connect the wires to the contacts of our single-phase electric meter, not forgetting to turn off the machine, plugs or knife switch, which is installed in front of the single-phase electric meter, if you have an input cable (wire) immediately comes to the meter, in this case, it is necessary to turn off the line.
When replacing an old single-phase electricity meter, if you decide to replace it yourself or called a friend-neighbor-electrician, at least make a call to your network company, management company, HOA and find out what needs to be done to replace a single-phase meter. Main question - who will break the seal from the old counter.
If you break the seal from the old electricity meter, and install a new one, and only after that report it to the power grid, serious problems may arise. You can be accused of stealing electricity (the seal is broken) and impose a heavy fine.
Scheme of a single-phase meter, when an introductory machine is installed in front of the meter. This should be the case according to the PUE, but if the introductory machine cannot be sealed, the network organization will not allow such a meter connection scheme.
Scheme of a single-phase meter, when the introductory machine is installed after the meter. This option for connecting an electric meter is used if it is not possible to seal the introductory machine. The cable (wire) is connected directly to the electricity meter, the terminal cover is sealed and there is no possibility of electricity theft.
Mercury 201 single-phase electricity meters are the most common means of energy metering today. They have replaced the old, morally and technologically obsolete counters with a spinning disk.
If you decide to buy a Mercury meter and connect it yourself, this information may be useful to you.
Mercury counters have been produced by the Russian company Incotex since 2001. The manufacturer guarantees the quality and reliable operation of the device for up to 30 years.
When purchasing a Mercury meter (series 201), it is necessary to check compliance with the basic requirements specified in the documentation:
- accuracy class - (may be 1 or 2). This parameter specifies the allowable measurement error (1% or 2%);
- date of manufacture of the meter (this is also the date of verification of the device);
- number of entry of the energy metering device (Mercury 201) in the State Register of Measuring Instruments.
Check for the presence of a warranty seal (with the date of manufacture of the meter), the stamp of the state verifier (with the date of verification), a hologram (protection against forgery).
Depending on the modification, Mercury 201 counters can be:
- electromechanical. The reading device is a mechanical drum. (Mercury 201.5, 201.6, 201.7).
- Electronic. The reading device works on the basis of electronic circuits. (Mercury 201.2, 201.4, 201.8). The results of electricity metering are displayed on a liquid crystal display.
Before installing and connecting the electric meter, you need to carefully read the instruction manual, the device passport, study the direct connection diagram.
The single-phase meter on the terminal block contains 4 input contacts:
- Contact for phase input from an external network (220V) to an apartment or house. The input wire is supplied from the power supply company.
- Contact for the exit of the phase into the apartment or house. For the output, you can use a wire type ShVVP.
- Zero connection terminal from an external network to an apartment or house.
- The zero output terminal is further to the load, that is, inside the apartment or house.
Connecting wires should be done in the same sequence.
Important to remember! Before connecting the meter, it is necessary to de-energize the system by turning off the machine, plugs, knife switch (if they are installed between the main trunk line and the meter). If the input cable goes directly to the meter, disconnect the supply line.
Connected wires are neatly tucked away; for this, there are perforated cells on the terminal cover for breaking out. The cover is screwed for a snug fit to the meter body.
You should once again check the wiring diagram, install the cover. Then, a representative of the network organization that provides the supply and metering of electricity, sealing of the counter Mercury 201. For this, the counter has a special hole.
When the meter is connected to the mains, the red light - indicator lights up.
In order to connect the Mercury 201 meter to the electrical network, you need to study the documentation well, be able to read electrical circuits, remember to strictly observe the phases and markings (colors) of the wires.
Also watch the video, which shows step-by-step instructions for installing and connecting a single-phase meter.
DVT humidity and temperature sensors Apparently, leading manufacturers consider this installation method the most rational, because today most metering devices are fixed precisely due to such a rail, for example, the Vzlet heat meter considered earlier.
Such a counter is screwless, thanks to which it is maximally protected from hacking, besides, the mechanism is quite hermetic.
RadioPilot Radio Yearbook For Authors Collaboration Contacts RL in social networks: As for the input wire, everything is clear here - it will be the way the power supply company determines it. Features in the design Main and additional characteristics Wiring diagram. He has vast experience in the design of fiscal instruments. Now you can hardly find old morally and technologically obsolete meters. As a rule, on the terminal covers of the electric meter, the connection diagram of the electric meters is shown on the inside, and our Mercury meter is no exception.
For three-phase meters there will be 1 year. Despite the popularity of Mercury counters, I have my own opinion about them, and not in a very good way. The bottom panel of the case is removable - it protects the contacts of the device. To the wall or to any other surface that the consumer chooses, the counter is attached using a DIN rail.
In other words, by removing it, you can access the input electrical contacts of the meter. DIY desktop 3D printer. You have opened Wiring diagrams ZU M ZU P ZU 2. Posted May 5,
As for the input wire, everything is clear here - it will be as determined by the power supply company. Here we will talk about one of these models. This is more convenient than doing it the other way around, since the screws of the electric meter terminals cannot be unscrewed without a good effort, and on a dangling electric meter, it is inconvenient to do this.
Scheme of the charger Sonar UZ Serial division is carried out depending on the permissible operating current, as well as on the method of displaying data on power consumption. There are 2 of them for each terminal, they look small, but I must say that the wires clamp well.
Advertising on RL Placement of price lists Subscription to updates Magazines: Posted February 7, First, a little about the manufacturer.
In other words, by removing it, you can access the input electrical contacts of the meter. Advertising on RL Placement of price lists Subscription to updates Magazines:
People earn money on this, I know this one. You decide to replace the old meter, or connect a new house, apartment, country house or garage, and you need to buy a new meter. Serial separation is carried out depending on the permissible operating current, as well as on the way the energy consumption data is displayed.
In this article I will talk about a single-phase single-tariff meter Mercury Nocturne 31 Kb - a domestic apparel electrophone. Or sign in with one of these services Sign in with Facebook.Maybe someone else knows? This is a rectangular plastic case.
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The points.
It is possible without solid state. It is possible and on magnetic starters. What for? In any case, the mechanical relay draws an order of magnitude more than the TV / body, it loses a lot in size, it is easy to listen for a click. Moreover, it is not necessary to supply power to it, walk around the case with a magnet and listen carefully. Or even simpler: search for the input phrase and you will hear false alarms of the relay contacts.
Open the engine mechanism is not entirely correct, but it's not for everyone. Personally, I correct the current readings.
Completely agree with self-sufficiency.
The decision of the PSU device in the photo is interesting. Why such low consumption figures? The damping conder of 0.22mF is in doubt, everything is at the limit, but if this is a working circuit, then full respect. But doubts are strong. When the receiver and processor are powered by 3-3.5V, their consumption will be at the level of 3-5mA, the parametric stabilizer is 6mA minimum, the relay is 8mA. Total 16mA. A damping conder at 022mF is capable of passing 14-15mA. Everything is on the edge. It is impossible to guarantee reliable operation of the relay and the operability of the circuit is questionable.
This post has been edited sipay – Aug 22 2015, 08:13 PM
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Relays, microcircuits, power supplies - this is the scope! Why such introductions?
I have been packing devices for a little over three years, and all I put there is a 1.5cm * 4cm master kit handkerchief.
In addition, I get a bunch of functions on this scarf - indication of keystrokes by a regular LED (you can turn it off), a two-interval non-volatile timer with separate settings for each interval for any intervals (this is when you get bored with the remote control), etc.
I think this approach is more qualitative and worthy.
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Firstly. This system has a serious drawback. She remembers her last state, i.e. after power is removed and then restored, she restores her state in which she was before the shutdown.
Secondly. Even if you turn off the LED, after a little training, you can connect the 2nd standard key fob to it, which allows you to calculate this system without the application of physical and intellectual efforts.
If the first drawback is easily eliminated by a slight change in the program and flashing the PIC, then the second one is much more difficult to eliminate, in practice the device needs to be created anew.
The PSU, as someone already wrote, should be autonomous and not only because of the ease of installation. Any refinement of your own PSU (replacement of a quenching capacitor and a buffer resistor) in most devices is easy to view through the top transparent cover.
Timers are of no interest at all. The process must be constantly monitored, because the inspectors do not come on schedule and it is difficult to say in what condition the device will be at the time of their appearance.
So before you show off, you need to study the problem in all aspects. In general, good luck to you and all the fighters of our invisible (unfortunately not always) front.
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Wow, 3 years down the drain, how come I didn’t think over the topic like that, apparently I’ll have to officially announce the recall of products.
As they say: “You finished me, partner.” (by the way, my phone says so when the battery is running out; it seems like a trifle, but it becomes funny every time)
Well, okay, I decided to lay out the instructions for the latest version here, with which I usually accompany the “system”, suddenly it becomes interesting for someone, so to speak, to evaluate the approach as a whole.For 3 years, of course, there were many changes, initially, for example, I set buzzers to beep, but it turned out that they were not entirely reliable, later I switched to LEDs, especially since they are always standard, supplemented, threw out functions, algorithms for responding to pressing, in general, any small things. As a result, as practice shows, I brought it almost to the ideal, but there was one minus - this Kit kit 1.5 tr. stands, and there's nothing to be done (at least break into China).
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Wow, 3 years down the drain, how come I didn’t think over the topic like that, apparently I’ll have to officially announce the recall of products.
As they say: “You finished me, partner.” (by the way, my phone says so when the battery is running out; it seems like a trifle, but it becomes funny every time)
Video (click to play). |
Well, okay, I decided to lay out the instructions for the latest version here, with which I usually accompany the “system”, suddenly it becomes interesting for someone, so to speak, to evaluate the approach as a whole. For 3 years, of course, there were many changes, initially, for example, I set buzzers to beep, but it turned out that they were not entirely reliable, later I switched to LEDs, especially since they are always standard, supplemented, threw out functions, algorithms for responding to pressing, in general, any small things. As a result, as practice shows, I brought it almost to the ideal, but there was one minus - this Kit kit 1.5 tr. stands, and there's nothing to be done (at least break into China).