TWI “Current loop”
The budget version of AMM for high-rise buildings and old problem districts is AMM based on TWI “Current Loop” wire technology. Counters have a low price. To build an AMM in a new building, it is necessary to lay a cable route to each electricity meter, as well as use a data transmission interface converter. To implement AMM in the old problem fund, it is necessary to remove all the metering devices to the general metering cabinet, replace the internal network and, if necessary, the network supplying the object; install the MTX IC interface converter as a mini-AMM center.
The MTX IC interface converter for data transmission is a simple communication device designed for the construction of AMM based on electricity meters (any control and measurement equipment that supports RS-485) of any manufacturers in GSM900/GSM1800 or Ethernet networks. The device allows you to organize LUSOD (LOSOD, LUSOD) in places with unstable coverage of the GSM network (for example, when placing electricity meters in distribution devices located in basements, shielded rooms, etc.) by using the RS-485 interface, which allows you to take the device to zone of reliable reception of the GSM network at a distance of up to 1200 m from the meters.
AMM “Current loop” is intended for problems:
- old distribution of electrical networks at the facility;
- networks supplying the facility are old;
- meters in apartments, the controller is not allowed;
- errors when transferring readings to the database;
- large temporary costs for the collection of testimony and for the police inspector;any actions (parameterization, load limitation, time synchronization) only locally through the optoport;
- it is difficult to protect against electricity theft.
Benefits:
- reliable high-speed conductive communication channel “Current loop”;
- budget price of components compared to AMM on PLC;
- support for up to 32 counters in one cabinet;
- full functionality of ASKOE (parameterization, consumption control, collection according to the schedule or operational collection of any data from meters);
- data exchange channels of the MTX IC converter – GSM/GPRS, Ethernet.
Equipment
MTX IC interface converter
MTX interface converter is a simple communication device designed to build AMR based on electricity meters (control and measurement or other equipment that supports RS-485) of any manufacturer, in GSM900/GSM1800 or Ethernet networks.
- GSM frequency bands: 900/1800 MHz;
- Transfer type: data;
- Ability to transfer data in CSD mode (dial-up);
- Built-in restart controller (reboot);
- Type of communication with meters: two-wire interface;
- Server connection type: Ethernet / GSM (CSD) / GPRS (TCP);
- Module supply voltage: 220 V (range 75-275 V);
- Power consumption of the module (transmission mode): no more than 10 W;
- Operating temperature range: from -20°C to + 55°C;
- Degree of protection of the case IP 54 in accordance with GOST 14254-80;
- Quick and easy installation;
- GSM frequency bands: 900/1800 MHz;
- Transfer type: data;
- Ability to transfer data in CSD mode (dial-up);
- Built-in restart controller (reboot);
- Galvanically isolated RS-485 interface with the ability to connect up to 31 devices;
- Communication type 485 interface: half duplex;
- Discrete inputs: 3;
- Module supply voltage: 220 V (range 75-275 V);
- Power consumption of the module (transmission mode): no more than 10 W;
- Wide range of connected devices;
- Work with any electricity meters with RS-485 interface.
- Operating temperature range: from -20°C to + 55°C;
- Body protection degree: IP 54 in accordance with GOST 14254-80;
- Quick and easy installation;
Single-phase smart meters MTX1 (1nc5)
– Energy metering: А+
– Max current, A: 80
– Nominal voltage, V: 220
– Accuracy class: 1
– Measuring elements: 2 (phase + neutral)
– OBIS codes on Display
– Tamper & theft protection (open-case, open-terminal case sensors)
– Optoport hardware protection by sealed button
– Software access & parametrization protection by three level password
– Transparent case for PCB visual control
– Magnetic / Emagnetic protection
– Non-separable case with plastic build-in seals with unique number (QR-codes)
– Tariff scale support in and out of AMM
– Data transfer modems: PLC, TWI, LoRaWAN
– 30-min load profile
– Remote load control/limitation by meter case built-in relay
– Remote meters parametrization by AMM or local by infrared port
– Calibration interval – 16 years
– Warranty – 5 years
Three-phase smart meters MTX3 (3nc3)
– Energy metering: А+R± (DC), А±R± (TС)
– Max current, A: 5(80) – DC, 5(10) – TC
– Nominal voltage, V : 3*220/380 – DC, 3*57.7/100, 3*220/380 – TC
– Accuracy class: 1/2 – DC, 0,5S/2 – TC,
– Measuring elements: 4 – DC, 3 – TC
– OBIS codes on Display
– Tamper & theft protection (open-case, open-terminal case sensors and magnet & Emagnet sensors)
– Optoport hardware protection by sealed button
– Software access & parametrization protection by three level password
– Transparent case for PCB visual control
– Magnetic / Emagnetic protection
– Non-separable case with plastic build-in seals with unique number (QR-codes)
– Tariff scale support in and out of AMM
– Data transfer modems: PLC, TWI, LoRaWAN
– 30-min load profile
– Remote load control/limitation by meter case built-in relay (DC only)
– Remote meters parametrization via AMM or local parametrization via infrared port
– Calibration interval – 10 years
– Warranty – 5 years
Three-phase smart meters MTX3 (3nc1)
– Energy metering: А+R± (DC), А±R± (TС)
– Max current, A: 5(120) – DC, 5(10) – TC
– Nominal voltage, V : 3*220/380 – DC, 3*57.7/100, 3*220/380 – TC
– Accuracy class: 1/2 – DC, 0,5S/2 – TC,
– Measuring elements: 4 – DC, 3 – TC
– OBIS codes on Display
– Tamper & theft protection (open-case, open-terminal case sensors and magnet & Emagnet sensors)
– Optoport hardware protection by sealed button
– Software access & parametrization protection by three level password
– Transparent case for PCB visual control
– Magnetic / Emagnetic protection
– External antenna socket (2.5m antenna included)
– GSM/GPRS module in meter front panel slot
– SIM-card & antenna replacement without meter power disconnect
– Tariff scale support in and out of AMM
– Data transfer modems: CSD/GPRS, PLC, TWI, LoRaWAN
– 30-min load profile (archive depth up to 123 days)
– Support up to 6 independent channels for energy archives
– Remote load control/limitation by built-in relay (only DС models)
– Remote meters parametrization via AMM or local parametrization via infrared port
– Calibration interval – 10 years
– Warranty – 5 years
