Single-phase electricity meter SOE-55: overview, instruction

When choosing an electricity meter, the consumer should pay attention to many different factors. On the market today, there are metering devices as high-quality, and deserve not too good consumer reviews. Of course, when buying such equipment in the first place, you should pay attention to the brand of its manufacturer. For example, a very good counter is considered ESR-55. Models of this brand have passed all the necessary tests, found to be suitable for use as metering devices including in domestic conditions and are characterized by very good quality of assembly.

General description of the device

The ESR counters of the 55 series are manufactured by the plant owned by ZAO MZEP located in Moscow. They belong to the class of household equipment and are intended for use in two-wire AC circuits having a frequency of 50 Hz. Among other things, these devices are also adapted to work in automated information and measuring systems of AMR. Some modifications of the ESR-55 counters (in the "2" housing) can be installed on the DIN-rail or under the cover of the controller or the modem terminal.

Design Features

These single-phase counters are constructed on an elementary modern basis with the use of high-speed electronic memory. Among other things, modern microprocessors are used in their design. On the market today there are modifications of the ESR-55:

• With one or two current sensors (used to prevent theft of electricity);

• With built-in relay to shut off the consumer.

Information on the amount of electricity used in these counters can be displayed on an electromechanical device or on a liquid crystal display. Instruments of the first type have the letter "M" in the marking.

Varieties

If you want, you can buy an ESR-55 meter:

• One-tariff;

• Two-tariff (with an external tariff-maker);

• Multi-tariff.

Counters marked "ШТ" are as reliably protected from the most common methods of distortion of indications by penetration into the connection scheme or the influence of the electric field. Local communication in these models is carried out using a special optical port. The printed circuit board in all counters of ESR-55 is mounted on special SMD technology. These devices are fixed to the support of three screws.

Advantages: supplier reviews

Workers of electricity services to the advantages of counters of ESR-55 include in the first place:

• Presence of protection against the most common methods of theft;

• Great technological margin of accuracy;

• The possibility of remote disconnection of the consumer or power reduction if necessary.

To work in the AMR system, these meters provide special electronic interfaces RS-232 or RS-485, as well as a special output. The last element of the design is designed to prevent loss of pulses during voltage surges.

They consider these counters to be quite high-quality and consumers. To the pluses of models, owners of houses and apartments include:

• Resistance to low temperatures;

• High build quality;

• Durability of transformer inclusion;

• Resistance to vibrations;

• Long service life.

Specifications

The responses of consumers and electricity suppliers to the ESR-55 / T 112 counters, thus, deserve good results. What specific technical characteristics this domestic equipment differs from is shown in the table below.

Use electric meter ESR-55 in domestic conditions is allowed 16 years. After this, it must pass an appropriate test or be replaced. In total, the ESR devices of the 55 series can, according to the manufacturer, serve for 36 years. According to the method of consumer protection from electric shock, they correspond to the second class (according to GOST 8865-93). The average operating time to failure in these models is 140,000 hours.

What dimensions can the model have?

There are only three main types of ESR counters in the 55 series:

1. In the building "0" . The overall dimensions of the instruments of this group are equal to 210x137x65 mm;

2. In the building "1" . Such a model is marked with ESR-55 / 50-112. The body of meters of this modification has dimensions of 210x137x115 mm.

3. In the building "2" . The dimensions of such meters are 213x131x83 mm.

Modifications of ESR-55/60 Ш-Т-112 are also delivered to the market today. The body of these meters is marked with the number "0". They have the following dimensions: 210x137x65 mm. In any design, therefore, the ESR counter is compact. And consequently, finding a place for him in an apartment or a private house will not be difficult. For this, of course, also deserve a good review of these devices.

SOE-55: instructions for use

The service life of the counters of ESR-55 is thus considerable. However, this equipment can last for a long time, of course, only if it is used correctly. The meter can be used if necessary at an ambient temperature of -40 to +60 C. It is allowed to operate the model, of course, around the clock. Relative air humidity in the room in which the meter will be installed should not exceed 98% at a temperature of 25 ° C. Such a high index is possible, however, only if there are no aggressive gases and a large amount of dust in the air. In any case, this meter can be installed in wet rooms, for example, in a separate bathhouse. Of course, it is allowed to mount this equipment in street account boxes.

What are the disadvantages

Of course, there are counters of ESR-55 not only advantages. They also have certain drawbacks. To such it is possible to carry, for example:

• Inconvenient way of fastening;

• Brittle plastic terminal box cover.

The design of this counter is that, when connected, its main wire can, unfortunately, be accidentally damaged. Therefore, it should be included in the network diagram as accurately as possible. All wires should be bent in advance.

Also to the cons of the counters of ESR-55 is to include not too reliable electronic part. Often (and especially when used outdoors), it happens that during a thunderstorm it breaks down. The same can happen when there is a short circuit in the network. This counter is worthwhile in the vicinity of 1000-1500 rubles. This, of course, is not too expensive. But still, even such a sum, lost due to a breakdown of the device, will necessarily affect the family budget.

Consumer opinion

Despite some of the shortcomings of the ESR-55 meters, feedback from homeowners, members of horticultural associations, etc., as already mentioned, they deserve relatively good. Especially popular with owners of houses and apartments are two-tariff meters of this brand. The main advantage of such modifications, in addition to compactness, the owners of houses and apartments consider the possibility of saving. After all, at night in many cities of Russia and the countries of the former CIS, electricity costs almost twice as much as in the daytime. Therefore, having such a counter, you can save quite a considerable amount.

Can the device independently overestimate the readings

The accuracy class of the model of ESR-55, as already mentioned, is the first. Thus, the quantity of electricity is always calculated correctly. However, sometimes, judging by the feedback of consumers, this device can still "buggy". According to the manufacturer, the percentage of marriage to these meters is 0.3%. Therefore, the first time for the readings of the device should be followed closely. In order to check the accuracy of the number displayed on the counter display, you should perform a couple of simple actions:

• Remember or write down the testimony;

• Disconnect all electrical appliances from outlets.

After ten minutes, you need to check the readings again. During this time they should not change in any way. The LED on the device itself should not be flashing during this period of time.

In the case of cheating, no independent action, of course, should not be taken. In order to correct the situation, you need to immediately call the house management and call the electricians. The latter will remove the seal and first check whether the device is correctly inserted into the circuit. If no errors are revealed, electricians can pick up the device for check (paid) if desired by the owners of the property. But the majority of owners of apartments and houses advises in this case, nevertheless, simply to buy a new meter. It will cost, most likely, even cheaper than verification. In addition, and connected electricity in the house will be with a new device much faster.