The key equipment of the remote meter reading system for heat meters is the heat meter data collector (concentrator). On the one hand, it collects the operation data of the heat meter at regular intervals according to the system settings, and at the same time responds to the commands of the management center to remotely upload the data to the management center.

The communication between the data collector (concentrator) and the meter is connected by a wired bus, which can be selected according to the needsM-bus or RS485 bus form, simple construction; The collector (concentrator) and the management center data terminal use GPRS wireless public network communication, which is convenient and stable. As needed, the collector can also achieve Internet public network communication and support TCP/IP network protocol.

The data collector (concentrator) collects the operating data of the heat meter in the downstream, connects to the data terminal in the upstream, and is also configuredCommunication interfaces such as USB and RS232 have functions of data acquisition, storage, local communication, and remote upload. LCD touch screens can also be equipped as needed to achieve local display query and debugging functions.

The data collector can also be used as a relay in the system to expand the load capacity of the equipment, extend the access to system user instruments and devices, and flexibly meet system requirements.

Main technical parameters:

Working power supply:AC220V±10%/50Hz

Equipment power consumption: maximum operating current＜100mA， average power consumption＜20W

Number of loaded devices: maximum access120 user heat meters and control equipment

M-bus (or RS485) communication:

Communication protocol:CJ/T 188-2004 "Technical Conditions for Data Transmission of Household Measuring Instruments"

Communication baud rate:2400 bps

GPRS communication: supports signals from China Mobile and China Unicom

Data storage: Storage ＞All user heating operation data for 10 years, with a power outage storage time of more than 10 years

Working environment conditions: Environmental temperature:（-10~55）℃； Relative humidity:＜80%RH

Protection level:IP52

Equipped with a dedicated power control box