Every owner of an apartment or his own house is concerned about saving energy. For this purpose, a meter should be installed in every living space. But getting into the store, the eyes of the buyer run up from the variety provided on the store shelves. And questions arise: which one is better to buy, how not to buy an outdated model?
Content
An electric meter is a device that records the electricity consumed. When choosing it, you should pay attention to the following points:
Guided by the desire to save money, it is worth purchasing two-tariff meters. Unlike the most common single-rate meters, their working hours are divided into 2 parts: night and day. This makes it possible in large cities to reduce the load on electrical networks by reducing the cost of a kilowatt at night. It is recommended to use two-rate meters if the living space has:
In the absence of the above factors, you can use a single tariff meter. It will cost less in terms of cost, and experts consider it more reliable.
Of no small importance when choosing a meter is the amount of power consumed per day in a given house. The average statistical indicator of the power consumed per day is considered to be 10 kW at a current load of up to 60 amperes. All meters are designed for a working frequency of 50 Hertz. Provided that the load will be more than 10 kW, it is necessary to purchase a meter with a current strength of 100 A.
In order to determine the power used in a residential building, you need to look at the passports of electrical appliances located throughout the house. They indicate the power of each electric assistant. When calculating, you should take into account their average operating time within 24 hours. Adding all the data, you get the average daily power, which is taken into account when buying a meter.
Metering devices for the electricity used of our time are presented in two types: mechanical and electronic. Experts say that the first type of electricity meters is the most reliable and durable. The advantages of the latter are the ability to save various information about the electrical network: peak power consumption, voltage drops and other indicators depending on the model of the device.
The choice of an electric meter will also be influenced by:
When buying an electric meter, when choosing, it is advisable to pay attention to devices manufactured by companies that have proven themselves on the positive side. These include:
Buyers are also interested in the price of the device. The provided functionality depends on how much it will cost: the number of tariffs, accuracy and its class, design model and technical characteristics.
Single-rate op-amp
Neva 103 1SO is a mechanical type certified device with a 7-digit counter.
The kit includes a backstop, shunt, LED indicator, screw terminals. The body of the device is made of gray plastic. Mounted using a DIN rail. High-quality latches help to install it quickly and easily. The meter meets the requirements of professionals and consumers. And also the ratio of price, quality and efficiency is excellent.
The average price is 425 rubles.
Single tariff LCD
Mercury 201.8 is a device of modern modification with a 7-bit liquid crystal display. Differs in increased operational data.
It stands out among other models by its modular housing, screw terminals and current measuring transducer. Mounted with a DIN rail. Installed LED backlight, which allows you to take readings in low light. The model is relatively new and it is just starting to earn leading positions.
The average price is 680 rubles.
Economical multi-tariff LCD
Energometer CE102M S7 145-JV is a multifunctional model, resistant to mechanical, climatic and electromagnetic influences.
Distinctive features of the device are the presence of a communication interface, non-volatile memory. Displays readings even when de-energized.A shunt is included in the package. On the counter, you can identify the data accumulated over 24 hours or a month. The model has buttons with which you can control. The 7-bit LCD is backlit.
Average price - 1800 rubles
Multi-tariff LCD self-supporting
Mercury 200.02 is a device that allows you to flexibly record the consumed electricity. The RCD can be used to control the load. Mounted on DIN panel. The model allows you to take readings at a maximum of 4 tariffs. The data is displayed. The information is stored for up to 11 months. With the correct distribution of the daily load on the power grid, the device allows profitable savings.
Average price - 1950 rubles
Single-rate op-amp
Mercury 231 AM-01 is a commercial modification that allows you to keep track of dynamic electricity in one direction. The process is carried out by a mechanical type of device in a three- or four-link AC network. It works both independently and in the ASKUE system. The counter drum only rotates in the increasing direction. LED backlight helps to read energy information. Control over the amount of consumed energy is carried out in a single tariff mode. DIN rail mountable.
Average price - 2300 rubles
Single tariff LCD
Energometer CE300 R31 043-J - a device with a liquid crystal display. You can connect it through a transformer and directly. The meter is equipped with a LED, is very sensitive to voltage drops, and is economical to maintain. Mounted on a DIN rail.
The average price is 3000 rubles.
Multi-tariff LCD
Mercury 231 AT-01 is a versatile instrument used for commercial purposes. It is used to control the consumed electricity in one direction only. Allows to remove data from the network in 3 or 4 wires. The model is equipped with 2 protection methods: two-stage from access to the received information and memory from the directional supply of the metrology coefficient. Allows you to work in the system of 2 or 4 tariffs and up to 12 seasons. Fits on a DIN rail.
The average price is 2800 rubles.
There are several criteria by which the devices can be divided among themselves. Due to the design feature, they are divided into induction and electronic. For a long time, apartments and houses were equipped only with induction meters.A distinctive feature of such devices is a rotating disc. Such devices do not have a high accuracy class.
In the 21st century, electronic meters appeared. They are equipped with an LCD screen. But the main advantage is their accuracy in readings. This helps them to lead the market.
Also, counters are produced single-phase and three-phase. The former are most often installed in apartments. And in houses with boilers, boilers and electric motors, it is recommended to use three-phase ones. Recently, they began to produce multiphase devices. They help to correctly distribute energy, which does not create congestion in the network. Users, however, note significant savings when metering energy with such meters.
Metering devices for consumed electricity are designed to work for decades, and also require sealing and issuing documents. These factors influence the need to purchase a quality electricity meter in order to avoid problems.