S Series Digital Monitoring Controller is designed for power system enterprises and industries for monitoring and controlling. They can measure most of common use electric parameters in high accuracy, such as three phase voltage, three phase current, three phase current and voltage combined, three phase active power, with the function of four loops switch value input measuring(remote surveillance) and 2/3 loops relay output(remote control) with RS485 interface, realize u201cremote measuringu201d function by MODBUS-RTU communication protocol. The transformation ratio can be programmable configured by the panel of the meter. The operation is easy and convenient.
Product Specification / Models
Application / Models
Accuracy 0.5、0.2 class, Frequency meter 0.1 class
Display Four digital LED with sign bit
Input Nominal input Current AC1A、AC5A、DC20mA and etc；VoltageAC100V、AC220V、AC380V、DC75mV and etc.
Overloading Continuance: 1.2 times, Instantaneous: current 10 times(5s), Voltage 2 times(10s)
Power supply Auxiliary power supply AC、DC 80~270V
Power consumption ≤4VA
Relay output 2~3 loops relay output, Relay contact catacty: AC3A/250V resistive, DC5A/30V resistive
Switch value input 4 loops switch value input by dry node point mode, Ri<500Ω connect; Ri>100kΩ disconnect
Isolation withstand voltage Input and power supply＞AC2kV, Input and output＞AC1kV, Power supply and output＞AC2kV, Output and output＞1kV
Insulation resistance ≥100MΩ
Mean time between failures ≥50000h
Communication output RS-485 interface, MODBUS-RTU protocol, Address: default1(1~256 optional)
Baud rate: default 9600(optional 4800, 9600)bps
MECSTAR Electronics Co., Ltd is one of the most professional instrument designer and manufacturers in the fields of power system automation and thermodynamic system automation.
We have 218 the technical personnel with high degree over 38%.