How to choose the electric meter ?

Types electricity

First of all you need to know which counters are.In general, they are divided into two types - electronic and induction.

1. Electronic meters.This modern and very popular product to date.They spend the measurement directly, that is, the data of the current and voltage immediately transferred to the instrument memory.After this procedure - a digital indicator.The rotating parts (as in the induction counter) are absent and everything is based on the chip.Advantages of this type are undeniable:
   • Accuracy class higher.
   • much easier to tolerate problems with loads and overloads.
   • works with different rates, that is, multi-tariff.
   • data can be removed remotely.

Among the shortcomings can be identified only its high cost.



2. Induction.It is simple and is gradually losing its position counters that can be found in every apartment of the old buildings.The principle of operation is the presence of two coils - current and voltage.Between them, the magnetic field, which acts as a "driving mechanism".It's simple - the higher the voltage, the faster the disk drives, and, consequently, the readings are higher.Advantages can be distinguished from its simplicity and durability.The downside is more - it is not always the correct transmission of data, poor protection against theft of energy and the possibility of problems with voltage drops.

error

next important factor - it's accuracy class meters.She is responsible for determining if the measurement errors.Usually indicated on the dashboard or in a small circle on the scoreboard.The greatest level of error is 2.5 percent.However, it was inherent to the last century, at the moment the highest proportion of error of 2 percentage points.This figure is the standard for induction meters and is considered high enough.Electronic same figures are 1 and 0.5 percent.

Therefore, the question arises, "how to choose the electric meter", experts recommend pay attention to electronic models.The fact that their value is higher than the standard, should not confuse customers, since with time it is an induction model will be more expensive because of the high level of errors.

multirate and one tariff

These two concepts decrypted is very simple:

• -rate - hours of taking place in the same format, the same rate, so to speak, that is, there is no division into day and night, winter andsummer.It is inherent in the standard counters.
• multirate - the counter is reading in 2 or more tariffs.Very convenient and economical.

Also, be aware that if the equipment will be on the street, you need to make a choice in favor of the counters that have a record of work in the technical specifications at -40 and possibly later.How to choose the electric meter should not be more difficult issue - all the questions are very specific and simple answer.