Electricity is the most valuable product that absolutely everyone needs. He has a cost, and in order to acquire the required number of kilowatts, you have to pay. How many? According to the tariffs and indicators counters. The latter are different - electronic and mechanical, single and three phase. As well as multi-and one-rate. To understand which counter is the best in any particular case, the article will help. Not only the life of the device depends on the correct choice of the device, but also the direct savings of each user.
Content:
Energy meter of which company to choose
Electricity meters are installed for decades, and legally with sealing and issuance of documents. Therefore, you need to buy a high-quality device so that there will not be an extra “headache” with it.
You need to acquire the device from manufacturers of measuring electronics, the reliability of products which are not in doubt:
1. Incotex
2. Energomera
3. Taypit
Incotex is a well-known Russian company with 15 years of experience, a member of a powerful diverse holding. It produces electric meters under the brand name “Mercury”, which are the first in sales in Russia.
Energomera is the largest electricity meter producer in the Russian market. Registered as a legal entity in 2010.
Taypit (T-IP) is a company founded in 1999 in St. Petersburg. Included in the same group of companies. Produces electricity meters "NEVA" and other measuring devices.
The best single-phase electricity meters
OTF
Neva 103 1SO is a certified model with a 7-digit mechanical reading device. Characterized by: voltage 220/230 V, current 5/60 A, working temperature range from ‒40 to +60 ° С, accuracy class 1.0, 16-year interval between calibrations.
In the presence of a backstop, shunt, LED indicator, screw terminals. The installation of the plastic gray housing is done using a DIN rail. Thanks to its robust, convenient snaps, installation is quick and easy.
Advantages:
- non-collapsible case, strong mounting latch;
- modest dimensions, light weight, readable size figures;
- reliability of construction, accuracy of readings, ease of installation, quality of wire connections;
- low price, real service life - about 30 years.
Disadvantage:
- flashing with clicks do not match, which misleads users.
The device is appreciated both by consumers and professionals. He has an excellent value for money, quality and efficiency. The only thing is that sometimes users are confused by the display and click modes.
One-rate LCD
Mercury 201.8 is a modern model with a 7-digit LCD screen. It features characteristics with enhanced operational capabilities: when measuring active energy, the accuracy class is 1.0; voltage fluctuates within 220 ÷ 230 V; current from nominal to maximum - 5 ÷ 80 A; operating temperature is in the range of ‒45 to +75 ° C; maximum humidity - 90%. Features include: modular housing, screw terminals, current measuring transducer. The “footprint” is set using a practical DIN rail. For ease of reading indicators provided LED backlight.
Advantages:
- the presence of a shunt and latch-lock;
- minimum weight, compactness, ease of installation;
- margin of safety, high class of accuracy, democratic cost;
- Term: operation - 30 years, between revisions - 16 years.
Disadvantage:
- problems with telemetry.
The device is relatively new, so its popularity is only growing. In essence, the model is an improved version of several predecessors.
Multitariff LCD economy
Energomera CE102M S7 145-JV is a universal model with enhanced resistance to mechanical, climatic and electromagnetic influences. Main characteristics: voltage and current strength - 230/220 V and 5/60 A; operating temperature - from ‒45 to +70 ° С; boundary humidity - 98%; the maximum number of tariffs - 4; accuracy classification - 1.
Among the options and features: communication interface, non-volatile memory, display of indications when the network is de-energized, the presence of a shunt, information display for the day and month. The control is carried out with the buttons, the 7-digit LCD monitor is illuminated by LEDs, the calibration is performed after 16 years.
Advantages:
- multifunctional liquid crystal screen;
- the possibility of removing information without voltage;
- protecting the memory from attempting to make changes;
- compactness, significant savings, ease of use, ease of reprogramming, nice design;
- high durability, component 16 years.
Disadvantage:
- sometimes "lame" assembly.
The device fully meets expectations - primarily for homes with a significant number of electrical outlets.
Multitariff LCD self-sustaining
Mercury 200.02 is a commercial model designed for flexible metering of electric energy. Characteristics include: base voltage 220 (230) V, current 5 (60) A, temperature range from ‒40 to +55 ° С, digital CAN manipulator.
In addition: the load is controlled by the RCD; current sensor constant takes into account through the shunt; error class is 1.0; mounting is carried out using a DIN panel. The meter can work together with ASKUE, and independently.
Accounting is carried out at a maximum of 4 rates - all operating parameters are displayed on the screen. With the help of electronics and a database, full information is available regarding energy consumption in the last 11 months.
Advantages:
- available pricing switching information;
- individual schedule taking into account seasonal winter / summer transitions;
- load regulation and control of consumed electricity;
- profitability, fast self-repayment, ease of operation;
- non-volatile memory, stylish design;
- Term in years: guarantees - 3, intertesting period 16, service - 30.
Disadvantages:
- display without backlight;
- high price.
According to users, the device is very beneficial in terms of savings. Of course, if you distribute the daily significant load on the network.
The best three-phase electricity meters
OTF
Mercury 231 AM-01 - a commercial model for accounting of dynamic electricity in the 1-side - the counting is conducted by a mechanical device in a 3-or 4-link AC network. It functions both independently and in the AMR system.
Characterized by: error class 1.0, voltage 3 * 230/400 V, current 5 (60) A, temperature variation from 40 to +55 ° С, time period between calibrations 10 years. Regardless of the phasing drum rotates only upwards.
Convenience reading indicators provided by the LED indicator. Energy accounting is carried out only in 1-rate mode. Mounting is done using a DIN rail.
Advantages:
- compliance with all necessary standards;
- ease of installation and ease of use;
- small dimensions, relatively small weight, accuracy, reliability;
- warranty period - 26 months.
Disadvantage:
- relatively short time for calibration.
A good machine that clearly performs its work - according to the instructions. There is no failure - there are no significant complaints from users.
One-rate LCD
Energomera CE300 R31 043-J - a model with a liquid crystal screen of accuracy class 0,5s; 1.0 Designed to measure the consumed electricity in 3- or 4-channel AC lines in the 1st or in 2 directions.
Connection can be carried out both directly and through a transformer. Characteristics: voltage - 3 * 230/400 V (3 * 57.7 / 100 V); working temperature - from ‒40 to +60 ° С; extreme values of current strength - 5/10 ÷ 60/100 A.
The counter distinguishes the following features: light indicator of functioning, high sensitivity to loads, protection against prohibited manipulations with electricity, minimum power consumption for own provision. For installation on the "seat" DIN plate is provided.
Advantages:
- high resistance to electromagnetic, atmospheric and physical effects;
- accounting can be conducted in one or in two directions;
- use in operation of the optical interface;
- reliability, convenience and ease of operation;
- warranty, inter-verification and total periods are, respectively, 4, 16, and 30 years.
Disadvantage:
- expensive.
The majority of users positively evaluated the device - if it is correctly mounted and adhered to the instructions during operation, it will serve for a long time.
Multi-tariff LCD
Mercury 231 AT-01 is a universal model of commercial purpose, the purpose of which is to account for active electricity in the 1st direction. Indicators are removed from the AC network, consisting of 3 or 4 wires.
Performance data: accuracy deviations in the measurement process - 1.0; voltage at the nominal - 3 * 230/400 V; a possible current jump from 5 to 60 A; permissible temperature fluctuations - from ‒40 to +55 ° С.
There are a number of tariffs - from 2 to 4, seasons - 12. The apparatus has two protections: 2-level against access to information and memory from distortion of metrology coefficients. The installation kit provides a convenient DIN-rail. According to the passport calibration should be carried out every 10 years.
Advantages:
- 16 daily zones; 2 modes of operation - autonomous or in combination with AIIS;
- on LCD the indicator is displayed and all information that has accumulated over the past 11 months is transmitted via IrDA communication;
- availability of protection against theft of energy, the presence of a sequence of events log;
- load control via RCD, automatic self-diagnosis, electronic signet;
- reliability, aesthetic appearance, adequate price.
Disadvantage:
- only active energy is measured.
This device does not read reactive energy, but is the 1st of the best in its class. Differs comparative simplicity and the ability to directly connect.
Which electricity meter to buy
Electricity meters are divided according to several criteria. By design features, they are induction and electronic. The first ones were invented a long time ago - they are equipped with a rotating disk, they are not distinguished by high accuracy and, until recently, were installed in apartments or floors. The latter are used with the arrival of the 21st century, they work without moving parts, they have a liquid crystal screen, compared with induction models they are less “mistaken” in measurements - it is for these reasons that they are quickly displacing outdated mechanical devices from the market.
In addition, the meters are single-phase (220 V), which are mounted in apartments, and three-phase (380 V), designed for houses equipped with boilers, boilers, electric motors. For an expedient distribution of energy by the hour of the day (to avoid peak overloads) and to save users of funds, modern models are made multi-tariff.
Based on the above information, good suggestions would be:
1. Neva 103 1SO - for an ordinary city apartment;
2. Mercury 200.02 - for large municipal apartments;
3. Energomera CE300 R31 043-J - for a low country cottage.
4. For a well-equipped country house, the best option is Mercury 231 AT-01. It is necessary to remember that this multi-tariff device. Therefore, it is possible to plan energy consumption effectively for days and months.
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