Mercury 201 – meter description, connection diagram

The Mercury 201 meter is produced and used to account for energy consumption in single-phase networks using alternating current, with a network voltage of 220V. It is used in private buildings, garages, apartments. It can be used either alone or in combination with other systems for commercial and technological energy calculations. Today it is one of the most common electrical energy metering devices in the Russian Federation and CIS countries, as well as neighboring countries. It is included in the state register of Russia and has a protective seal and a hologram on the body.

Standard capabilities of Mercury 201 (single-phase)

1. Recording and storing data on consumed electrical energy for the following periods of time:
   From a complete reset (zeroing the meter readings);
2. For the current day;
3. Over the past month.
4. Electricity metering is carried out according to a single tariff scheme;
5. Records the following parameters:
   Maximum powers;
6. Actual value of voltage, phase current;
7. Shows the network frequency;
8. Power factors.
9. Equipped, depending on the model, with a practical LCD display.

Additional counter features

• Built-in PLC modem with the ability to transmit accounting data over the network up to 7.5 kbit/s.

Safety precautions

In order for the installation and operation of the Mercury 201 device to proceed without any problems or injuries, basic safety precautions must be observed. These simple measures will help avoid equipment breakdowns and reduce the likelihood of electric shock.

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The most important safety instructions:

1. Before you start using the electric meter, you must read the operating documentation.
2. Any installation, repair or maintenance activities should be carried out only when the network is disconnected.
3. During operation of the device, you need to monitor the maximum permissible values ​​of current and voltage in the network.
4. It is not recommended to install the device in places where fuels, lubricants and flammable items are stored.
5. Self-installation can only be carried out if you have sufficient experience in such work. Otherwise, it is better to entrust this matter to professional electricians.
6. The height of mounting the meter on the wall should be such that the device is out of reach of small children and pets.

The single-phase electricity meter Mercury 201 is a high-quality device that allows you to obtain accurate information about the amount of electricity used. If you install it correctly and follow all the recommendations of professionals, you can significantly speed up the process and avoid any problems.

Technical characteristics of the Mercury counter

We recommend: Meter Neva MT 124 - description of the device, characteristics

The warranty period for the meters is 36 months.
Calibration interval for meters of the following types: - Mercury 200, 201, 202, 203, 206 - 16 years; - Mercury 230, 231, 233 - 10 years.

Meters Mercury 230, 233 ART (00, 01, 02, 03) measure phase by phase current, voltage, power factor, frequency, instantaneous power

Mercury 230AR (00.01, 02, 03) meters have the ability to externally switch tariffs via the CAN, RS485 interface in the absence of an internal tariff.
A – active energy; R – reactive energy; T – internal tarifficator; 2 – two directions of energy metering; P – loss profile, power profile, event log; Q – power quality measurement; C – CAN; R – RS485; S – internal power supply of the interface; D – Possibility of connecting backup power; I – IrDA infrared port (for the Mercury 205.2 meter optical port); N – presence of an electronic seal; G – GSM modem; О – load control using a relay inside the meter; K – output for disconnecting the load; L – PLC modem for data transmission over the power network; M – modified PLC modem; F – RF (2.4 GHz); B – LCD backlight; OU – reporting device; USPD – a device designed to collect data on phase 1 (Concentrator);

Meter Mercury 201, instructions for taking readings

The display displays the following visual parameters: current date/time values, network frequency, active and reactive electricity consumption, the accuracy of the readings reaches hundredths of kW/h. To the right of the display, in the form of a table, there is technical information about the metering device.

To take readings from this electric meter, you need to write down the current value from the display to the decimal point and subtract the last reading read from it, then multiply the resulting figure by the cost of the electricity tariff. The red number after the decimal point displays the value of tenths of a kilowatt, which is not taken into account when paying.

What is the service life of an electric meter?

Electricity meters come in two types, using different measurement principles and, accordingly, different designs.

What kind of lighting do you prefer?

Built-in Chandelier

Induction or mechanical

The design is based on the principle of electromagnetic induction. The current consumed passes through the coil, which creates a magnetic field. This field rotates a disk, which is connected by a worm gear to the gears of the dial. The more current passes, the greater the magnetic field and the faster the disk rotates.

Electronic

Modern electronic metering devices are distinguished not only by high accuracy, but also by the absence of moving mechanisms, which theoretically increases their service life. “Theoretically”, since devices have recently entered our lives, and they have not yet had time to be tested by time.

The instructions for electronic meters indicate a shelf life of 25 years - 30 years.

Hybrid

The concept of a “hybrid” meter, in fact, does not exist. The design of the device is either mechanical or electronic. Models that have external features of both are sometimes called hybrid.

The model may have a mechanical filling, but at the same time be compact, with an attractive interface and LCD display.

On the other hand, many electronic devices are equipped with a simpler and more familiar mechanical dial with scrolling numbers on the rollers.

This mixed option usually costs slightly less and helps save on the purchase of a device while maintaining high precision electronic design.

Expert opinion

Viktor Pavlovich Strebizh, lighting and electrical expert

Any questions ask me, I will help!

This is not the same period of 25 years indicated in the manufacturer’s passport. 25 years is an approximate period, the shelf life, during which the device will remain in working condition, according to the factory’s calculations. If there is something you don’t understand, write to me!