Price, rub.: 1800
01 is a three-phase static electricity meter. It can operate on three-wire or four-wire networks. The electric meter is certified, certificate number No. ROSS RU.AYA74.V32295. The meter is resistant to voltage dips and interruptions. The device enters operating mode no later than 10 minutes after switching on. The time to failure is at least 140,000 hours, the guaranteed service life is 30 years, upon reaching which a major overhaul of the product is required. Transportation must be carried out at temperatures from minus 50 to plus 70 degrees Celsius.
The Mercury 230 am-01 electricity meter has the following technical characteristics:
- -Power consumption no more than 0.1 VA
- -Operating temperature range from -40 degrees Celsius to +55 degrees Celsius
- -Voltage (nominal) - 230 V, maximum - 400 V
- -Current strength (nominal) - 5 A, maximum - 60 A
- -Accuracy class (active energy) - 1.0
- -Maximum current for 0.5 s - 150 A
- - Interverification interval is 10 years
Energy consumption values are displayed on 5 black reels in kWh, the reel after the decimal point shows tenths of energy in kWh
The device allows you to take into account active electrical energy in one tariff mode. Energy is taken into account on an increasing basis throughout the entire period of operation from the moment the work begins.
In case of any connection violation (phasing violation), the calculation is carried out in a positive direction, that is, in the direction of increasing readings. The meter is equipped with an LED to indicate energy consumption, as well as a special electromechanical cut-off device.
It is possible to operate both in stand-alone mode and as part of an automated power supply system using a standard telemetry output.
| Main technical characteristics |
|
The single-tariff meter Mercury 230 AM provides commercial metering of active electrical energy in one direction. Accounting is carried out in three-phase alternating current networks with three or four wires. The counter is oriented at a frequency of 50 Hz. The device can operate both in stand-alone mode and as part of an automated control and measuring system. The device operates both directly and through transformers. Power measurement is carried out digitally.
The device meets the requirements of both GOST 3020 and IEC 1036.
The device is equipped with a galvanically isolated telemetric output, which meets the DIN 43864 standard.
The dimensions of the meter housing and terminal block are standard, which allows the use of universal fastening equipment during installation. The design of the device is very convenient and greatly simplifies the installation and operation process.
Main technical characteristics of the device:
1. Mercury 230 AM takes into account electrical energy in the single tariff mode on an accrual basis from the beginning of commissioning.
2. If there is a violation of the phasing of the current circuits in the network, the readings increase
3. The device is equipped with an LED indicator of the presence and consumption of electricity and an electromechanical reading device.
4. Standard telemetry makes it possible to use devices as part of an automated measurement system that is capable of receiving accounting information in telemetry pulses.
The technical features of the device fully satisfy the average needs. Mercury 230 AM has the first class of direct connection and 0.5 S class of transformer connection. The rated voltage for transformer connection is 3 * 57.7 / 100 V and the minimum and maximum current is 5 and 7.5 A, for direct - 3 * 220 / 380 V and 5.10 A (minimum) and 50, 100 A ( maximum). A current rating of 5 amps per half second allows the unit to produce a maximum current of 150 amps, and a 10 amp rating gives a maximum of 200 amps.
The sensitivity of the device when changing active energy is quite high. In this case, the device shows a fairly low level of power consumed by each parallel circuit. Active power consumption is no more than 1 W, and total power consumption is no more than 7.5 VA. In telemetry mode, the device constant is 800, 1600, 8000 pulses/kW, in test mode - 17070; 170700 imp/kW.
The meter remains operational at temperatures from -40 to +55 degrees. Mercury 230 AM has small dimensions and light weight (about one and a half kilograms).
The service life of the device is about 30 years, the warranty given by the manufacturer is 3 years. The device must be checked every 10 years.
Mercury 230 AM-01
Three-phase active-reactive, multi-tariff, multifunctional electricity meter.
It can be operated autonomously or as part of any information and measurement systems for technical and commercial accounting.
Meter Mercury 230 ART used to account for active and reactive electrical energy and power in one direction in three-phase 3- and 4-wire AC networks with a frequency of 50 Hz through instrument transformers or directly with the possibility of tariff accounting by day zones, accounting for losses and transfer of measurements and accumulated information about power consumption on digital interface channels.
Features of the electric meter:
-accuracy class 0.5S, 1.0
-interfaces: RS-485; CAN, IrDA, PLC
-two standard galvanically isolated telemetric outputs (DIN 43864), one for each type of energy
- possibility of connecting backup power U res = 5.5...9 V
-measurement of power, currents, voltages, frequency, cos fi
- work towards increasing readings in case of any violation of the phasing of the connection of current circuits
- built-in PLC modem for data transmission via a 220 V power network (depending on modification)
-automatic self-diagnosis with error indication
- load control through external switching circuits (RCD)
- DIN rail mounting
-electronic seal
The meter tarifficator provides the ability to account for 4 tariffs in 16 time zones of the day. Each day of the week and month of the year is programmed according to an individual tariff schedule. The minimum tariff validity interval within a day is 1 minute
The Mercury 230 ART electricity meter provides measurement, accounting, storage, display on an LCD indicator and transmission via interface of the amount of registered active and reactive electricity separately for each tariff and the amount for all tariffs:
-just from resetting readings
-for the current day
-for the previous day
-for the current month
-for each of the previous 11 months
-for the current year
-for the previous year
It is possible to take into account the active energy of the forward direction separately in each phase of the network.
Setting active power and energy limits and programmable control of external consumer load shedding devices (RCDs) when the limits are exceeded.
It is possible to take into account technical losses in power lines and power transformers.
Transfer of measurement results and accounting data via CAN, RS-485, IrDA interfaces
Operation of meters in phase summation mode “modulo” to prevent the theft of electricity when the phasing of the connection of the meter’s current circuits is disrupted.
Additionally, the meter provides measurement of the following power network parameters:
- instantaneous values of active, reactive and apparent power for each phase and for the sum of phases, indicating the direction of the apparent power vector
- effective values of phase currents, voltages, angles between phase voltages
network frequency - power factors for each phase and sum of phases
The LCD display shows:
- the value of consumed active and reactive electrical energy for each tariff (up to four) and the amount for all tariffs with an accrual total accurate to hundredths of kWh and kVar*h
-phase voltage and current in each phase
-measured value of active, reactive and apparent power (integration time 1 s) both for each phase and the total for three phases with indication of the quadrant in which the apparent power vector is located
-morning and evening maximums of active and reactive power in the current and 3 previous months
-current time and date
- power factor for each phase and total for three phases
-angles between phase voltages
- network frequency
- PLC modem signal level icon
- parameters of the power network modem
Additional functions of the Mercury 230 ART electric meter:
-storage of a two-channel archive of the average power values of active and reactive energy and the power profile of technical losses with an arbitrary integration time from 1 to 45 minutes in steps of 1 minute. With a 30-minute integration duration, the archive overflow time is 85 days
- fixation of morning and evening maximums of active and reactive power at a given interval with a monthly schedule
-availability of logs: events, status (circular with 10 entries for each event), which record:
--counter on/off time
--time of disappearance/appearance of phases 1,2,3
--time of opening/closing the device
--time of correction of the tariff schedule
--time of exceeding established energy and power limits
etc. - a total of 22 different events
-monitoring of power quality indicators (PQI) with recording in the PQE log the time when voltage and frequency return exceed normal and maximum values (100 records for each event) -connection of external backup power for reading or changing parameters and reading data in case the meter is disconnected from mains power
Mercury 230 ART meters are read by an external computer via the “CAN” interface (or “RS-485” or “IrDA”) the following parameters:
| Options | Pro- gram- roving |
Reading |
| . accounted active and reactive energy of forward and reverse directions for each of the 4 tariffs and the amount according to the tariffs; Total from resetting readings; |
+ | |
| . interface exchange parameters (prohibited for the infrared port) | ||
| - exchange speed; | + | |
| - even/odd parity control; | + | |
| - system timeout duration multiplier; | + | |
| . changing passwords of the first (consumer) and second (seller) data access levels | + | |
| . parameters of the counter's built-in clock: | ||
| - current time and date; | + | + |
| - a sign of seasonal time (winter/summer); | + | + |
| - permission/prohibition of automatic transition of seasonal time; | + | + |
| - time of transition to “summer” and “winter” time with automatic setting of seasonal time; | + | + |
| . Tariff parameters: | ||
| - rater mode (single-tariff/multi-tariff); | + | + |
| - current tariff numbers; | + | |
| - tariff schedule (up to 4 tariffs separately for each day of the week and holidays of each month. Up to 16 tariff intervals per day with installation steps of at least 1 minute); | + | + |
| - calendar of holidays; | + | + |
| . power profile saving parameters: | ||
| - duration of the integration period; | + | + |
| - parameters of the last entry in the power profile storage memory; | + | |
| - sign of an incomplete cut (the counter turned on or off during the integration period); | + | |
| - permission/prohibition of memory reset when initializing a memory array of medium capacity; | + | + |
| - a sign of memory overflow of the medium-capacity array; | + | |
| - average values of active and reactive powers of forward direction for a given integration period for constructing load graphs in normal and accelerated reading modes; | + | |
| . auxiliary parameters: | ||
| - instantaneous values (with an integration time of 1 s) of active, reactive and apparent power for each phase and for the sum of phases; indicating the direction (position of the total power vector); | + | |
| - effective values of phase voltages and currents for each phase; | + | |
| - power factors for each phase and for the sum of phases indicating the direction (position of the total power vector); | + | |
| - angles between phase voltages; | + | |
| - network frequencies; | + | |
| . individual meter parameters: | ||
| - network address; | + | + |
| - serial number; | + | |
| - release dates; | + | |
| - meter location; | + | + |
| - accuracy class for active energy; | + | |
| - accuracy class for reactive energy; | + | |
| - sign of phase summation (taking into account the sign/modulo); | + | |
| - version of the meter (unidirectional/overcurrent); | + | |
| - rated voltage; | + | |
| - rated current; | + | |
| - voltage transformation ratio; | + | + |
| - current transformation ratio; | + | + |
| - counter constant in main mode; | + | |
| - operating temperature range; | + | |
| - pulse output mode (main/test); | + | + |
| - software versions; | + | |
| . display modes: | ||
| - indication period (1..255 seconds); | + | + |
| - duration of display of energy consumption readings at the current tariff (5..255 seconds) in automatic mode; | + | + |
| - duration of display of energy consumption readings at a non-current tariff (5...255 seconds) in automatic mode; | + | + |
| - timeout duration (5...255 seconds) when returning from manual to automatic mode; | + | + |
| - a list of displayed readings of consumed energy (by the sum of tariffs, tariff 1, tariff 2, tariff 3, tariff 4) separately for active and reactive energy with automatic parameter change mode, | + | + |
| - a list of displayed readings of consumed energy (by the sum of tariffs, tariff 1, tariff 2, tariff 3, tariff 4) separately for active and reactive energy when changing parameters manually; | + | + |
| . control parameters for exceeding established limits of active power and forward energy: | ||
| - mode (permission/prohibition) of control over exceeding the established limit of forward active power; | + | + |
| - mode (permission/prohibition) of control over exceeding the established limit of forward active energy; | + | + |
| - values of the established power limit; | + | + |
| - values of the established energy limit separately for each of the four tariffs; | + | + |
| - pulse output mode (pins 21, 26) (telemetry/load shedding unit control mode); | + | + |
| - control mode of the load shedding unit (load on/off); | + | + |
| . event log (ring with 10 entries): - time of switching on/off the counter; - time before/after current time correction; - on/off time of phases 1, 2, 3 - start/end time of exceeding the active power limit direct direction (with permitted control); - time of correction of the tariff schedule; - time of correction of the holiday schedule; - time of resetting the accumulated energy registers; - initialization time of the average power array; - time of exceeding the direct active energy limit directions for each tariff (with permitted control); power; - time of correction of control parameters for exceeding the limit energy; - time of correction of technical loss accounting parameters; - time of opening/closing of devices |
+ | |
| . meter self-diagnosis word states. | + | |
The PLC interface provides:
Transmission of the following information about consumed electricity on an accrual basis:
- the least significant four digits of the current readings of accumulated energy in kWh with an accuracy of 1 kWh
- the total total of the total tariffs recorded by the meters at the time the precise cut command arrives with an accuracy of up to 0.01 kWh, regardless of whether the meter is operating in single- or multi-tariff mode
- serial number of the meter.
The meter with the letter “M” is equipped with a new revision PLC-I modem (PLC-I+). Unlike the previous modification, it is additionally possible to transmit the following data:
- readings of accounted energy at the beginning of the day in the form as they are displayed on the meter’s LCD (in the form of XXXXXX.xx kWh) for any tariff, current tariff or sum of tariffs.
Receiving the following information:
- network identifier of the built-in modem
- command to temporarily switch to the mode of transmitting additional information
- current time and date
Designation:
MERCURY 230ART2-XX M PQCRILGSDN
MERCURY- meter brand
230
- counter series
A- active energy measurement
R- reactive energy measurement
T- presence of an internal tarifficator
2
- two directions of accounting
XX- modifications divided by current, voltage and accuracy class.
M- PLC-I modem with advanced functions
P- presence of a profile, event log
Q- availability of a log of power quality indicators
C(R)SILGDN- interfaces, namely:
C- CAN interface
R- RS485 interface
I- Infrared port
L- PLC modem
G- GSM modem
S- internal power supply for the GSM interface and modem
D- external backup power
N- electronic seal
The absence of a symbol in the meter name indicates the absence of a corresponding function.
Specifications:
| name of parameters | Quantities |
|---|---|
| Measurement accuracy class - active energy - reactive energy |
0.5S or 1.0 1.0 or 2.0 |
| Rated voltage, V | 3*57.7/100 or 3*230/400 |
| Rated (max) current, A | 5(7,5); 5(60); 10(100) |
| Maximum current for 0.5 sec, A - for I NOM =5A - for I NOM =10A |
150 200 |
| Starting current (sensitivity), A - for I NOM(MAX) =5(7.5)A, U NOM =57.7 or 230V - for I NOM(MAX) =5(60)A, U NOM =230V - for I NOM(MAX) =10(100)A, U NOM =230V |
0,005 0,020 0,040 |
| Active/apparent power consumption each parallel circuit of the meter, W/VA no more |
0,5 / 7,5 |
| Total power consumed by the current circuit, no more than, V*A | 0,1 |
| Number of tariffs | 4 |
| Number of tariff seasons (months) | 12 |
| Exchange rate, bits/second: - via CAN and RS-485 interface; - via infrared port; |
300, 600, 1200, 2400, 4800, 9600 9600 |
| Gear ratio of the main/verification output, pulse/kW, pulse/kVar: for ART-00 (U NOM 57.7 V, I NOM 5 A) for ART-01 (U NOM 220 V, I NOM 5 A) for ART-02 (U NOM 220 V, I NOM 10 A) for ART-03 (U NOM 220 V, I NOM 5 A) |
5000/160000 1000/32000 500/16000 1000/160000 |
| Data safety during power interruptions, years - constant information - operational information |
40 10 |
| Data protection | two access levels and hardware memory protection of metrological coefficients |
| Temperature range, °C | from - 40 to +55 |
| Interverification interval, years | 10 |
| Weight, kg | no more than 1.5 |
| Dimensions (length, width, height), mm | 258*170*74 |
| Manufacturer's warranty, years | 3 |
Product in stock! Prices 2019
Conditions for ordering and delivery of adapters for communication with Mercury meters
(requests by email [email protected] or by phone 8-909-283-34-16)
1) Automation unit - WiFi router (model VR-007.4) Cost 5000 rubles. Buy. Miniature SPD for polling lists of Mercury meters via any of the connected USB-RS485/CAN/IRDA/optoport interfaces. It can independently poll 10 three-phase Mercury meters, or create an end-to-end tunnel through itself for polling by external programs of an unlimited list of meters.
2) Cost 3300 rubles. Buy. A complete hardware device for transmitting data between an Ethernet local network and a wired RS485 interface. Widely used to automate readings from metering devices, including Mercury electricity meters. Works with all types of TCP/IP protocols in server and client modes. Can be connected to the Internet for remote monitoring of ASKUE metering objects.
3) Cost 1950 rubles. Buy. Interface converter for electricity meters Mercury-230, 231, CE-102 containing IRDA interfaces. To connect to an electric meter, it does not require opening the terminal box.
4) Cost 1950 rubles. Buy. Universal converter of wired interfaces RS485/CAN. Can supply power to the electric meter interface. Suitable for Mercury-200, 203.2T, 206, 230, 233, 234, 236 containing RS485/CAN. Connection requires opening the terminal box. It is possible to connect highways with meters.
5) Cost 850 rubles. Buy. Suitable for Mercury electricity meters that do not need to power the communication interface. It has only output terminals D+ and D-. Can be used with Mercury-203.2T, 206, 230, 233, 234, 236, containing RS485. It is necessary to open the terminal box for connection.
6) Cost 1950 rubles. Buy. Suitable for electricity meters Mercury-201.8TLO, 203.2T, 206, 233, 234, 236, containing an optical port. Connection does not require opening the terminal box.
8) Cost 4000 rubles. Buy. Miniature radio modems with a transparent communication channel, allowing you to work with electricity meters in radio extender mode. They have the ability to connect to industrial RS485/CAN interfaces and allow you to create group or single electricity metering units in hard-to-reach places.
9) Cost 2000 rubles. Buy. The modem has specialized Hilink firmware, works with all SIM cards, has advanced settings (built-in firewall, SMS, USSD, displays service information about signal levels and much more). Allows you to provide VR-007 automation nodes with the Internet and create the ability to poll electricity meters via 3G networks.
10) Cost 4200 rubles. Buy. A smart home element that allows automated polling of a three-phase Mercury meter through any of the connected USB-RS485/CAN/IRDA/optoport interfaces. It has its own adaptable Web interface, a database, and can conduct a minute-by-minute survey of instantaneous values of currents, voltages, powers, and build energy graphs by month and day. It has the ability to broadcast a webcam and weather stations through itself, and is an element of a smart home capable of transmitting consumption data to the user’s email and sales. Can output data to the Narodmon.ru server and report critical situations.
Delivery (added to the cost of the product):
1) Russian Post - first class registered parcel. Price 300 rubles. Delivery time is 3-5 working days. A track number is issued.
Product in stock! Prices 2019
Conditions for ordering and delivery of adapters for communication with Mercury meters
(requests by email [email protected] or by phone 8-909-283-34-16)
1) Cost 5000 rubles. Buy. Miniature SPD for polling lists of Mercury meters via any of the connected USB-RS485/CAN/IRDA/optoport interfaces. It can independently poll 10 three-phase Mercury meters, or create an end-to-end tunnel through itself for polling by external programs of an unlimited list of meters.
2) Ethernet-RS485 (VR-008.1) Cost 3300 rubles. Buy. A complete hardware device for transmitting data between an Ethernet local network and a wired RS485 interface. Widely used to automate readings from metering devices, including Mercury electricity meters. Works with all types of TCP/IP protocols in server and client modes. Can be connected to the Internet for remote monitoring of ASKUE metering objects.
3) USB-IRDA (model VR-001) Cost 1950 rubles. Buy. Interface converter for electricity meters Mercury-230, 231, CE-102 containing IRDA interfaces. To connect to an electric meter, it does not require opening the terminal box.
4) USB-RS485/CAN (model VR-002) Cost 1950 rubles. Buy. Universal converter of wired interfaces RS485/CAN. Can supply power to the electric meter interface. Suitable for Mercury-200, 203.2T, 206, 230, 233, 234, 236 containing RS485/CAN. Connection requires opening the terminal box. It is possible to connect highways with meters.
5) USB-RS485 (model VR-004) Cost 850 rubles. Buy. Suitable for Mercury electricity meters that do not need to power the communication interface. It has only output terminals D+ and D-. Can be used with Mercury-203.2T, 206, 230, 233, 234, 236, containing RS485. It is necessary to open the terminal box for connection.
6) USB optical port (model VR-005) Cost 1950 rubles. Buy. Suitable for electricity meters Mercury-201.8TLO, 203.2T, 206, 233, 234, 236, containing an optical port. Connection does not require opening the terminal box.
8) JTT-A (RS485/CAN) (433 MHz radio modem, 100 mW) Cost 4000 rubles. Buy. Miniature radio modems with a transparent communication channel, allowing you to work with electricity meters in radio extender mode. They have the ability to connect to industrial RS485/CAN interfaces and allow you to create group or single electricity metering units in hard-to-reach places.
9) 3G modem (Hilink) Cost 2000 rubles. Buy. The modem has specialized Hilink firmware, works with all SIM cards, has advanced settings (built-in firewall, SMS, USSD, displays service information about signal levels and much more). Allows you to provide VR-007 automation nodes with the Internet and create the ability to poll electricity meters via 3G networks.
10) Automation unit - WiFi router (model VR-007.3) Cost 4200 rubles. Buy. A smart home element that allows automated polling of a three-phase Mercury meter through any of the connected USB-RS485/CAN/IRDA/optoport interfaces. It has its own adaptable Web interface, a database, and can conduct a minute-by-minute survey of instantaneous values of currents, voltages, powers, and build energy graphs by month and day. It has the ability to broadcast a webcam and weather stations through itself, and is an element of a smart home capable of transmitting consumption data to the user’s email and sales. Can output data to the Narodmon.ru server and report critical situations.
Delivery (added to the cost of the product):
1) Russian Post - first class registered parcel. Price 300 rubles. Delivery time is 3-5 working days. A track number is issued.
The multi-tariff three-phase meter Mercury entered the market as a response to the introduction of several hourly electricity tariffs.
Three-phase meters are designed specifically for energy consumption metering and general monitoring of three-wire electrical networks.
In networks of this type, current is supplied to three phases, its total frequency is 50 Hz.
Models of three-phase multi-tariff meters Mercury
Today, about ten models of three-phase meters TM Mercury are presented on the Russian market:
- 236 ART, the model is available in versions 01 and 02 PQRS and 01 and 02 PQL;
- 234 ARTM, one of the most “professional” electricity meters, has 16 design options; some of the variations are distinguished by the presence of a GPRS modem, which allows you to establish a communication channel with devices that have GPRS sensors, as well as use the channels of mobile operators for communication. This Mercury model is additionally equipped with a backlit LCD display;
- 234 ART, a powerful model that includes options such as fixation of magnetic interference, a backup power supply, and in some of the options there is an additional load shutdown function;
- 230 ART, has 19 versions, including with a GSM modem;
- 231 AT;
- 230 AR, available in modifications 00R, 01R, 02R, 03R, as well as with a PLC modem;
- 231 AM-01;
- 230 AM-01.
Explanation of symbols:
- A – the meter measures active electricity;
- R – the meter keeps track of reactive electricity;
- T – built-in tarifficator;
- P – power profile;
- Q – presence of a log of phase flows and electricity;
- R – RS-485;
- M – electromechanical reference device available;
- L – presence of a PLC type modem;
- S – availability of internal power to support the interface;
- 01, 02 – modification number, which indicates the difference between meters in current, voltage and other parameters.
Features of the three-phase Mercury meter
Functionality of the three-phase Mercury meter:
- Accounting and storage of information on energy consumption.
- Storing information for each tariff (up to four possible tariffs: days, night, weekend, peak hour tariff for energy consumption), summing up tariffs.
- Collection of information about the latest events in the power grid: failures, power losses, loads.
- IRDA interface
IRDA interface is a built-in functionality that allows you to take readings from the device or change its settings using the remote control. This interface allows you to install the meter in a hard-to-reach place, hiding it from the eyes of strangers.
The IRDA interface solves the problem of taking readings from meters installed on poles in country and cottage villages.
The Mercury counter is equipped with a liquid crystal display, where all accounting and control data are displayed. In addition, the meter display shows the current date and time, temperature, and the results of the device’s self-diagnosis.
This is interesting: A feature of some models of three-phase meters is built-in modems that can transfer data from metering devices to other devices: mobile phones, smartphones. A very useful function for those homeowners who leave for a long time and for visiting electricians who have access to information about the status of the device 24/7.
Modems are built in two types - PLC and GSM:
- PLC modem is a technology for transmitting data over an electrical network. The power cable becomes the data transmission route;
- GSM modem is a technology for transmitting data from the meter via mobile operator channels.
All three-phase Mercury meters are capable of operating both in stand-alone mode with manual recording of metering information, and as part of a general electricity metering system AIIS, transmitting data centrally and on a schedule.
Note: many households and most small and medium-sized businesses began to install multi-tariff electricity meters that allow differentiated payments in order to save money.
The three-phase multi-tariff meter Mercury is a device for direct connection to the power grid.
Scope of application of three-phase Mercury meters
Connection diagram for a three-phase meter (click to enlarge) Mercury meters are used in networks with voltages of 220 and 380 volts. That is, all models, without exception, are suitable for installation in an apartment or country house, as well as in an enterprise.
The choice of meter options is dictated by the needs of the end user. So, for a home device, the function of remembering previous readings of the device is very interesting.
For the owner of a country house, the range of operating temperatures from +55 to -40 degrees will be interesting, which covers climatic conditions with a margin, because the meter can be installed either in a special box on an electrical pole or in unheated technical rooms.
Good to know: the installation of metering devices in country and cottage settlements is regulated by the Charter. In most cases, the Charter obliges electricity users to place measuring devices on poles and even outside the boundaries of the site. Therefore, when choosing a meter, it is necessary to understand the operating temperature range of the device.
For enterprises, a backup power supply, the presence of modems and communication channels, and many other indicators of the state of the electrical network that electricians use in their work will be relevant.
Multi-tariff meters with great functionality have a correspondingly high cost. The manufacturer provides a 36-month product warranty. Positive reviews from both master electricians, electrical network installers, and users make it possible to understand that money is being given for a high-quality device that will last for many years.
How to connect a three-phase Mercury meter, see the following video:
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