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

When choosing a power meter, consumers should pay attention to many different factors. In the market today there are metering devices of both high enough quality and those that have earned not very good customer reviews. Of course, when buying such equipment, you should first of all 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, are recognized as suitable for use as metering devices, including in domestic conditions and are characterized by very good build quality.

General description of the device

ESR series 55 meters are produced by a plant owned by CJSC MZEP located in Moscow. They belong to the class of household equipment and are intended for use in two-wire alternating current circuits having a frequency of 50 Hz. In addition, these devices are also adapted to work in automated information-measuring systems of automatic control systems for automated accounting and accounting information. Some modifications of the SOE-55 counters (in the "2" case) can be installed on a DIN rail or under the cover of a controller or modem terminal.

Design features

These single-phase counters are built on an elementary modern base using high-speed electronic memory. In addition, modern microprocessors are used in their design. On the market today there are modifications of ESR-55:

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

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

Information about the amount of electricity used in these meters can be displayed on an electromechanical device or on a liquid crystal display. For devices of the first type, the letter “M” is present in the marking.

Varieties

If you wish, today you can buy a counter SOE-55:

• single tariff;

• two-tariff (with external tariffing);

• multi-tariff.

Counters with the marking "" are most reliably protected from the most common methods of distorting readings by penetrating the connection circuit or by the influence of an electric field. Local communication in these models is carried out using a special optical port. The printed circuit board in all SOE-55 meters is mounted using special SMD technology. These devices are attached to the support with three screws.

Advantages: reviews of electricity providers

Employees of power supply services relate to the advantages of SOE-55 meters primarily:

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

• large technological margin of accuracy;

• the ability to remotely disconnect the consumer or reduce power if necessary.

For operation as part of ASKUE, these meters have special electronic interfaces RS-232 or RS-485, as well as a special output. The last structural element is designed to prevent the loss of pulses during power surges.

These counters are considered quite high quality by consumers. The owners of houses and apartments include the advantages of models:

• resistance to low temperatures;

• high build quality;

• durability of transformer inclusion;

• resistance to vibrations;

• long term of operation.

Specifications

Reviews of consumers and suppliers of electricity meters SOE-55 / T 112, thus, earned good. What specific technical characteristics differ this domestic equipment can be found in the table below.

It is allowed to use the SOE-55 electric meter in domestic conditions for 16 years. After that, he must pass an appropriate check or be replaced. In total, ESR series 55 devices can, according to the manufacturer, last 36 years. By the method of protecting consumers from electric shock, they correspond to the second class (according to GOST 8865-93). MTBF of these models is 140,000 hours.

What sizes can have a model

The market today comes with only three main varieties of ESR meters of the 55 series:

1. In the case "0" . The overall dimensions of the devices of this group are 210x137x65 mm;

2. In the case "1" . Such a model is marked SOE-55 / 50-112. The case of counters of this modification has dimensions of 210x137x115 mm.

3. In the case "2" . The sizes of such counters are 213x131x83 mm.

Also on the market today are supplied modifications SOE-55/60 Sh-T-112. The case of these counters is marked with the number "0". They have the following dimensions: 210x137x65 mm. In any design, thus, the ESR meter is compact. And therefore, finding a place for him in an apartment or a private house will be completely uncomplicated. For this, of course, these devices also earned good reviews.

ESR-55: instructions for use

The service life of SOE-55 meters is thus significant. However, this equipment can last a long time, of course, only if it is used correctly. If necessary, a counter can be used at an ambient temperature of -40 to +60 ° C. The model can be operated, of course, around the clock. The relative humidity in the room in which the meter will be installed should not exceed 98% at a temperature of 25 ° C. Such a high rate is allowed, however, only if there are no various kinds of aggressive gases in the air and a lot of dust. In any case, you can install this meter even in wet rooms, for example, in a free-standing bath. Of course, it is allowed to mount this equipment in street metering boxes.

What are the disadvantages

Of course, ESR-55 meters have more than just advantages. They also have certain disadvantages. These may include, for example:

• inconvenient mounting method;

• Unbreakable plastic terminal box cover.

The design of this meter is as follows, 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, the minuses of the SOE-55 counters include the not too reliable electronic part. Often (and especially when used outdoors) it happens that during a thunderstorm it breaks down. The same thing can happen with a short circuit in the network. This counter is meanwhile in the region of 1000-1500 p. This, of course, is not too expensive. But still, even such an amount lost due to a breakdown of the device will certainly affect the family budget.

Consumer opinion

Despite some of the drawbacks of the ESR-55 meters, the feedback from homeowners, members of horticultural associations, etc., as already mentioned, they deserved relatively good. Particularly popular with owners of houses and apartments are two-tariff meters of this brand. The main advantage of such modifications, in addition to compactness, owners of houses and apartments consider the possibility of savings. Indeed, at night in many cities of the Russian Federation and the countries of the former CIS, electricity costs almost half as much as during the day. Therefore, having such a counter, you can save quite significant amounts.

Can the device independently overestimate the readings

The accuracy class of the model SOE-55, as already mentioned, is the first. Thus, he always calculates the amount of electricity correctly. However, sometimes, judging by consumer reviews, this device can still “glitch”. According to the manufacturer, the reject rate for these meters is 0.3%. Therefore, at first, the readings of the device should be closely monitored. In order to check the accuracy of the number displayed on the counter display, you should perform a couple of simple steps:

• remember or record readings;

• 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 also not blink during this period of time.

In the case of cheating, of course, no independent actions should 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 included in the circuit. If no errors are detected, electricians, at the request of the property owners, can pick up the device for verification (paid). But most owners of apartments and houses advise in this case, still just buy a new counter. This will most likely cost even less than verification. In addition, the connected electricity in the house will be much faster with a new device.