Product overview:
Concentrator II (GPRS/CDMA/Ethernet) equipment can automatically copy the local connected meters through 485 interface and return data to the master station through GPRS/CDMA/Ethernet upstream communication mode, thus assisting the master station to complete remote data acquisition and parameter download. The product can be divided into three models: DJGL23-BOOST22 (upstream channel GPRS); DJCL23-BOOST22 (upstream channel CDMA); DJEL23-BOOST22 (upstream channel ethernet).
Product characteristics:
Have local maintenance communication port to facilitate on-site debugging and analysis.
Have online remote upgrade program, easy to upgrade terminal function;
Support GPRS/CDMA/ Ethernet remote communication function;
Meet the national Power Grid Corp Q/GDW series of standards for electricity user information collection system.
It is small but can complete all functions of I concentrator.
The cost is lower than that of I concentrator.
It can store the daily Zero freezing data and the monthly zero freezing data of each watt-hour meter separately for easy inquiry.
Automatic inspection of the system is carried out, and equipment (including communication) is found to be abnormal in event recording and alarm.
It has the function of remote time calibration of the master station to the concentrator and the function of broadcasting time calibration of the concentrator to the energy meter in the system.
When the power supply is cut off instantaneously or for a long time, the equipment has data maintenance measures, and the data can be maintained for at least 30 years.
Queries can be set up either locally or remotely at the main station, which can prevent illegal authorized personnel from operating and ensure data security.
Performance parameters:
Supply voltage: 100V ~ 264v
Working frequency: 50Hz allowable deviation -6% ~ +2%
Ambient temperature: - 40 C ~ +70 C
Apparent power: less than 5VA
Active power: less than 3W
Electrostatic discharge: 8KV
High frequency electromagnetic field: 10V/m
Electrical fast transient burst: 4KV
Surge voltage: 4KV
Internal clock accuracy: less than 0.5s/d
Data storage validity: more than 30 years
